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percona-toolkit/bin/pt-find
Sveta Smirnova 3d0c0c623f Merge branch '3.x' into HEAD
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#!/usr/bin/env perl
# This program is part of Percona Toolkit: http://www.percona.com/software/
# See "COPYRIGHT, LICENSE, AND WARRANTY" at the end of this file for legal
# notices and disclaimers.
use strict;
use warnings FATAL => 'all';
# This tool is "fat-packed": most of its dependent modules are embedded
# in this file. Setting %INC to this file for each module makes Perl aware
# of this so it will not try to load the module from @INC. See the tool's
# documentation for a full list of dependencies.
BEGIN {
$INC{$_} = __FILE__ for map { (my $pkg = "$_.pm") =~ s!::!/!g; $pkg } (qw(
Percona::Toolkit
DSNParser
OptionParser
Quoter
TableParser
Daemon
HTTP::Micro
VersionCheck
));
}
# ###########################################################################
# Percona::Toolkit package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/Percona/Toolkit.pm
# t/lib/Percona/Toolkit.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package Percona::Toolkit;
our $VERSION = '3.7.0';
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Carp qw(carp cluck);
use Data::Dumper qw();
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw(
have_required_args
Dumper
_d
);
sub have_required_args {
my ($args, @required_args) = @_;
my $have_required_args = 1;
foreach my $arg ( @required_args ) {
if ( !defined $args->{$arg} ) {
$have_required_args = 0;
carp "Argument $arg is not defined";
}
}
cluck unless $have_required_args; # print backtrace
return $have_required_args;
}
sub Dumper {
local $Data::Dumper::Indent = 1;
local $Data::Dumper::Sortkeys = 1;
local $Data::Dumper::Quotekeys = 0;
Data::Dumper::Dumper(@_);
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End Percona::Toolkit package
# ###########################################################################
# ###########################################################################
# DSNParser package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/DSNParser.pm
# t/lib/DSNParser.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package DSNParser;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Data::Dumper;
$Data::Dumper::Indent = 0;
$Data::Dumper::Quotekeys = 0;
my $dsn_sep = qr/(?<!\\),/;
eval {
require DBI;
};
my $have_dbi = $EVAL_ERROR ? 0 : 1;
sub new {
my ( $class, %args ) = @_;
foreach my $arg ( qw(opts) ) {
die "I need a $arg argument" unless $args{$arg};
}
my $self = {
opts => {} # h, P, u, etc. Should come from DSN OPTIONS section in POD.
};
foreach my $opt ( @{$args{opts}} ) {
if ( !$opt->{key} || !$opt->{desc} ) {
die "Invalid DSN option: ", Dumper($opt);
}
PTDEBUG && _d('DSN option:',
join(', ',
map { "$_=" . (defined $opt->{$_} ? ($opt->{$_} || '') : 'undef') }
keys %$opt
)
);
$self->{opts}->{$opt->{key}} = {
dsn => $opt->{dsn},
desc => $opt->{desc},
copy => $opt->{copy} || 0,
};
}
return bless $self, $class;
}
sub prop {
my ( $self, $prop, $value ) = @_;
if ( @_ > 2 ) {
PTDEBUG && _d('Setting', $prop, 'property');
$self->{$prop} = $value;
}
return $self->{$prop};
}
sub parse {
my ( $self, $dsn, $prev, $defaults ) = @_;
if ( !$dsn ) {
PTDEBUG && _d('No DSN to parse');
return;
}
PTDEBUG && _d('Parsing', $dsn);
$prev ||= {};
$defaults ||= {};
my %given_props;
my %final_props;
my $opts = $self->{opts};
foreach my $dsn_part ( split($dsn_sep, $dsn) ) {
$dsn_part =~ s/\\,/,/g;
if ( my ($prop_key, $prop_val) = $dsn_part =~ m/^(.)=(.*)$/ ) {
$given_props{$prop_key} = $prop_val;
}
else {
PTDEBUG && _d('Interpreting', $dsn_part, 'as h=', $dsn_part);
$given_props{h} = $dsn_part;
}
}
foreach my $key ( keys %$opts ) {
PTDEBUG && _d('Finding value for', $key);
$final_props{$key} = $given_props{$key};
if ( !defined $final_props{$key}
&& defined $prev->{$key} && $opts->{$key}->{copy} )
{
$final_props{$key} = $prev->{$key};
PTDEBUG && _d('Copying value for', $key, 'from previous DSN');
}
if ( !defined $final_props{$key} ) {
$final_props{$key} = $defaults->{$key};
PTDEBUG && _d('Copying value for', $key, 'from defaults');
}
}
foreach my $key ( keys %given_props ) {
die "Unknown DSN option '$key' in '$dsn'. For more details, "
. "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
. "for complete documentation."
unless exists $opts->{$key};
}
if ( (my $required = $self->prop('required')) ) {
foreach my $key ( keys %$required ) {
die "Missing required DSN option '$key' in '$dsn'. For more details, "
. "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
. "for complete documentation."
unless $final_props{$key};
}
}
return \%final_props;
}
sub parse_options {
my ( $self, $o ) = @_;
die 'I need an OptionParser object' unless ref $o eq 'OptionParser';
my $dsn_string
= join(',',
map { "$_=".$o->get($_); }
grep { $o->has($_) && $o->get($_) }
keys %{$self->{opts}}
);
PTDEBUG && _d('DSN string made from options:', $dsn_string);
return $self->parse($dsn_string);
}
sub as_string {
my ( $self, $dsn, $props ) = @_;
return $dsn unless ref $dsn;
my @keys = $props ? @$props : sort keys %$dsn;
return join(',',
map { "$_=" . ($_ eq 'p' ? '...' : $dsn->{$_}) }
grep {
exists $self->{opts}->{$_}
&& exists $dsn->{$_}
&& defined $dsn->{$_}
} @keys);
}
sub usage {
my ( $self ) = @_;
my $usage
= "DSN syntax is key=value[,key=value...] Allowable DSN keys:\n\n"
. " KEY COPY MEANING\n"
. " === ==== =============================================\n";
my %opts = %{$self->{opts}};
foreach my $key ( sort keys %opts ) {
$usage .= " $key "
. ($opts{$key}->{copy} ? 'yes ' : 'no ')
. ($opts{$key}->{desc} || '[No description]')
. "\n";
}
$usage .= "\n If the DSN is a bareword, the word is treated as the 'h' key.\n";
return $usage;
}
sub get_cxn_params {
my ( $self, $info ) = @_;
my $dsn;
my %opts = %{$self->{opts}};
my $driver = $self->prop('dbidriver') || '';
if ( $driver eq 'Pg' ) {
$dsn = 'DBI:Pg:dbname=' . ( $info->{D} || '' ) . ';'
. join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
grep { defined $info->{$_} }
qw(h P));
}
else {
$dsn = 'DBI:mysql:' . ( $info->{D} || '' ) . ';'
. join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
grep { defined $info->{$_} }
qw(F h P S A s))
. ';mysql_read_default_group=client'
. ($info->{L} ? ';mysql_local_infile=1' : '');
}
PTDEBUG && _d($dsn);
return ($dsn, $info->{u}, $info->{p});
}
sub fill_in_dsn {
my ( $self, $dbh, $dsn ) = @_;
my $vars = $dbh->selectall_hashref('SHOW VARIABLES', 'Variable_name');
my ($user, $db) = $dbh->selectrow_array('SELECT USER(), DATABASE()');
$user =~ s/@.*//;
$dsn->{h} ||= $vars->{hostname}->{Value};
$dsn->{S} ||= $vars->{'socket'}->{Value};
$dsn->{P} ||= $vars->{port}->{Value};
$dsn->{u} ||= $user;
$dsn->{D} ||= $db;
}
sub get_dbh {
my ( $self, $cxn_string, $user, $pass, $opts ) = @_;
$opts ||= {};
my $defaults = {
AutoCommit => 0,
RaiseError => 1,
PrintError => 0,
ShowErrorStatement => 1,
mysql_enable_utf8 => ($cxn_string =~ m/charset=utf8/i ? 1 : 0),
};
@{$defaults}{ keys %$opts } = values %$opts;
if (delete $defaults->{L}) { # L for LOAD DATA LOCAL INFILE, our own extension
$defaults->{mysql_local_infile} = 1;
}
if ( $opts->{mysql_use_result} ) {
$defaults->{mysql_use_result} = 1;
}
if ( !$have_dbi ) {
die "Cannot connect to MySQL because the Perl DBI module is not "
. "installed or not found. Run 'perl -MDBI' to see the directories "
. "that Perl searches for DBI. If DBI is not installed, try:\n"
. " Debian/Ubuntu apt-get install libdbi-perl\n"
. " RHEL/CentOS yum install perl-DBI\n"
. " OpenSolaris pkg install pkg:/SUNWpmdbi\n";
}
my $dbh;
my $tries = 2;
while ( !$dbh && $tries-- ) {
PTDEBUG && _d($cxn_string, ' ', $user, ' ', $pass,
join(', ', map { "$_=>$defaults->{$_}" } keys %$defaults ));
$dbh = eval { DBI->connect($cxn_string, $user, $pass, $defaults) };
if ( !$dbh && $EVAL_ERROR ) {
if ( $EVAL_ERROR =~ m/locate DBD\/mysql/i ) {
die "Cannot connect to MySQL because the Perl DBD::mysql module is "
. "not installed or not found. Run 'perl -MDBD::mysql' to see "
. "the directories that Perl searches for DBD::mysql. If "
. "DBD::mysql is not installed, try:\n"
. " Debian/Ubuntu apt-get install libdbd-mysql-perl\n"
. " RHEL/CentOS yum install perl-DBD-MySQL\n"
. " OpenSolaris pkg install pkg:/SUNWapu13dbd-mysql\n";
}
elsif ( $EVAL_ERROR =~ m/not a compiled character set|character set utf8/ ) {
PTDEBUG && _d('Going to try again without utf8 support');
delete $defaults->{mysql_enable_utf8};
}
if ( !$tries ) {
die $EVAL_ERROR;
}
}
}
if ( $cxn_string =~ m/mysql/i ) {
my $sql;
my ($charset) = $cxn_string =~ m/charset=([\w]+)/;
if ( $charset ) {
$sql = qq{/*!40101 SET NAMES "$charset"*/};
PTDEBUG && _d($dbh, $sql);
eval { $dbh->do($sql) };
if ( $EVAL_ERROR ) {
die "Error setting NAMES to $charset: $EVAL_ERROR";
}
}
else {
my ($mysql_version) = eval { $dbh->selectrow_array('SELECT VERSION()') };
if ( $EVAL_ERROR ) {
die "Cannot get MySQL version: $EVAL_ERROR";
}
my (undef, $character_set_server) = eval { $dbh->selectrow_array("SHOW VARIABLES LIKE 'character_set_server'") };
if ( $EVAL_ERROR ) {
die "Cannot get MySQL var character_set_server: $EVAL_ERROR";
}
if ( $mysql_version =~ m/^(\d+)\.(\d)\.(\d+).*/ ) {
if ( $1 >= 8 && $character_set_server =~ m/^utf8/ ) {
$dbh->{mysql_enable_utf8} = 1;
$charset = $character_set_server;
my $msg = "MySQL version $mysql_version >= 8 and character_set_server = $character_set_server\n".
"Setting: SET NAMES $character_set_server";
PTDEBUG && _d($msg);
eval { $dbh->do("SET NAMES '$character_set_server'") };
if ( $EVAL_ERROR ) {
die "Cannot SET NAMES $character_set_server: $EVAL_ERROR";
}
}
}
}
PTDEBUG && _d('Enabling charset for STDOUT');
if ( $charset && $charset =~ m/^utf8/ ) {
binmode(STDOUT, ':utf8')
or die "Can't binmode(STDOUT, ':utf8'): $OS_ERROR";
binmode(STDERR, ':utf8')
or die "Can't binmode(STDERR, ':utf8'): $OS_ERROR";
}
else {
binmode(STDOUT) or die "Can't binmode(STDOUT): $OS_ERROR";
}
if ( my $vars = $self->prop('set-vars') ) {
$self->set_vars($dbh, $vars);
}
$sql = 'SELECT @@SQL_MODE';
PTDEBUG && _d($dbh, $sql);
my ($sql_mode) = eval { $dbh->selectrow_array($sql) };
if ( $EVAL_ERROR ) {
die "Error getting the current SQL_MODE: $EVAL_ERROR";
}
$sql = 'SET @@SQL_QUOTE_SHOW_CREATE = 1'
. '/*!40101, @@SQL_MODE=\'NO_AUTO_VALUE_ON_ZERO'
. ($sql_mode ? ",$sql_mode" : '')
. '\'*/';
PTDEBUG && _d($dbh, $sql);
eval { $dbh->do($sql) };
if ( $EVAL_ERROR ) {
die "Error setting SQL_QUOTE_SHOW_CREATE, SQL_MODE"
. ($sql_mode ? " and $sql_mode" : '')
. ": $EVAL_ERROR";
}
}
PTDEBUG && _d('DBH info: ',
$dbh,
Dumper($dbh->selectrow_hashref(
'SELECT DATABASE(), CONNECTION_ID(), VERSION()/*!50038 , @@hostname*/')),
'Connection info:', $dbh->{mysql_hostinfo},
'Character set info:', Dumper($dbh->selectall_arrayref(
"SHOW VARIABLES LIKE 'character_set%'", { Slice => {}})),
'$DBD::mysql::VERSION:', $DBD::mysql::VERSION,
'$DBI::VERSION:', $DBI::VERSION,
);
return $dbh;
}
sub get_hostname {
my ( $self, $dbh ) = @_;
if ( my ($host) = ($dbh->{mysql_hostinfo} || '') =~ m/^(\w+) via/ ) {
return $host;
}
my ( $hostname, $one ) = $dbh->selectrow_array(
'SELECT /*!50038 @@hostname, */ 1');
return $hostname;
}
sub disconnect {
my ( $self, $dbh ) = @_;
PTDEBUG && $self->print_active_handles($dbh);
$dbh->disconnect;
}
sub print_active_handles {
my ( $self, $thing, $level ) = @_;
$level ||= 0;
printf("# Active %sh: %s %s %s\n", ($thing->{Type} || 'undef'), "\t" x $level,
$thing, (($thing->{Type} || '') eq 'st' ? $thing->{Statement} || '' : ''))
or die "Cannot print: $OS_ERROR";
foreach my $handle ( grep {defined} @{ $thing->{ChildHandles} } ) {
$self->print_active_handles( $handle, $level + 1 );
}
}
sub copy {
my ( $self, $dsn_1, $dsn_2, %args ) = @_;
die 'I need a dsn_1 argument' unless $dsn_1;
die 'I need a dsn_2 argument' unless $dsn_2;
my %new_dsn = map {
my $key = $_;
my $val;
if ( $args{overwrite} ) {
$val = defined $dsn_1->{$key} ? $dsn_1->{$key} : $dsn_2->{$key};
}
else {
$val = defined $dsn_2->{$key} ? $dsn_2->{$key} : $dsn_1->{$key};
}
$key => $val;
} keys %{$self->{opts}};
return \%new_dsn;
}
sub set_vars {
my ($self, $dbh, $vars) = @_;
return unless $vars;
foreach my $var ( sort keys %$vars ) {
my $val = $vars->{$var}->{val};
(my $quoted_var = $var) =~ s/_/\\_/;
my ($var_exists, $current_val);
eval {
($var_exists, $current_val) = $dbh->selectrow_array(
"SHOW VARIABLES LIKE '$quoted_var'");
};
my $e = $EVAL_ERROR;
if ( $e ) {
PTDEBUG && _d($e);
}
if ( $vars->{$var}->{default} && !$var_exists ) {
PTDEBUG && _d('Not setting default var', $var,
'because it does not exist');
next;
}
if ( $current_val && $current_val eq $val ) {
PTDEBUG && _d('Not setting var', $var, 'because its value',
'is already', $val);
next;
}
my $sql = "SET SESSION $var=$val";
PTDEBUG && _d($dbh, $sql);
eval { $dbh->do($sql) };
if ( my $set_error = $EVAL_ERROR ) {
chomp($set_error);
$set_error =~ s/ at \S+ line \d+//;
my $msg = "Error setting $var: $set_error";
if ( $current_val ) {
$msg .= " The current value for $var is $current_val. "
. "If the variable is read only (not dynamic), specify "
. "--set-vars $var=$current_val to avoid this warning, "
. "else manually set the variable and restart MySQL.";
}
warn $msg . "\n\n";
}
}
return;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End DSNParser package
# ###########################################################################
# ###########################################################################
# OptionParser package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/OptionParser.pm
# t/lib/OptionParser.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package OptionParser;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use List::Util qw(max);
use Getopt::Long;
use Data::Dumper;
my $POD_link_re = '[LC]<"?([^">]+)"?>';
sub new {
my ( $class, %args ) = @_;
my @required_args = qw();
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($program_name) = $PROGRAM_NAME =~ m/([.A-Za-z-]+)$/;
$program_name ||= $PROGRAM_NAME;
my $home = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
my %attributes = (
'type' => 1,
'short form' => 1,
'group' => 1,
'default' => 1,
'cumulative' => 1,
'negatable' => 1,
'repeatable' => 1, # means it can be specified more than once
);
my $self = {
head1 => 'OPTIONS', # These args are used internally
skip_rules => 0, # to instantiate another Option-
item => '--(.*)', # Parser obj that parses the
attributes => \%attributes, # DSN OPTIONS section. Tools
parse_attributes => \&_parse_attribs, # don't tinker with these args.
%args,
strict => 1, # disabled by a special rule
program_name => $program_name,
opts => {},
got_opts => 0,
short_opts => {},
defaults => {},
groups => {},
allowed_groups => {},
errors => [],
rules => [], # desc of rules for --help
mutex => [], # rule: opts are mutually exclusive
atleast1 => [], # rule: at least one opt is required
disables => {}, # rule: opt disables other opts
defaults_to => {}, # rule: opt defaults to value of other opt
DSNParser => undef,
default_files => [
"/etc/percona-toolkit/percona-toolkit.conf",
"/etc/percona-toolkit/$program_name.conf",
"$home/.percona-toolkit.conf",
"$home/.$program_name.conf",
],
types => {
string => 's', # standard Getopt type
int => 'i', # standard Getopt type
float => 'f', # standard Getopt type
Hash => 'H', # hash, formed from a comma-separated list
hash => 'h', # hash as above, but only if a value is given
Array => 'A', # array, similar to Hash
array => 'a', # array, similar to hash
DSN => 'd', # DSN
size => 'z', # size with kMG suffix (powers of 2^10)
time => 'm', # time, with an optional suffix of s/h/m/d
},
};
return bless $self, $class;
}
sub get_specs {
my ( $self, $file ) = @_;
$file ||= $self->{file} || __FILE__;
my @specs = $self->_pod_to_specs($file);
$self->_parse_specs(@specs);
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
my $contents = do { local $/ = undef; <$fh> };
close $fh;
if ( $contents =~ m/^=head1 DSN OPTIONS/m ) {
PTDEBUG && _d('Parsing DSN OPTIONS');
my $dsn_attribs = {
dsn => 1,
copy => 1,
};
my $parse_dsn_attribs = sub {
my ( $self, $option, $attribs ) = @_;
map {
my $val = $attribs->{$_};
if ( $val ) {
$val = $val eq 'yes' ? 1
: $val eq 'no' ? 0
: $val;
$attribs->{$_} = $val;
}
} keys %$attribs;
return {
key => $option,
%$attribs,
};
};
my $dsn_o = new OptionParser(
description => 'DSN OPTIONS',
head1 => 'DSN OPTIONS',
dsn => 0, # XXX don't infinitely recurse!
item => '\* (.)', # key opts are a single character
skip_rules => 1, # no rules before opts
attributes => $dsn_attribs,
parse_attributes => $parse_dsn_attribs,
);
my @dsn_opts = map {
my $opts = {
key => $_->{spec}->{key},
dsn => $_->{spec}->{dsn},
copy => $_->{spec}->{copy},
desc => $_->{desc},
};
$opts;
} $dsn_o->_pod_to_specs($file);
$self->{DSNParser} = DSNParser->new(opts => \@dsn_opts);
}
if ( $contents =~ m/^=head1 VERSION\n\n^(.+)$/m ) {
$self->{version} = $1;
PTDEBUG && _d($self->{version});
}
return;
}
sub DSNParser {
my ( $self ) = @_;
return $self->{DSNParser};
};
sub get_defaults_files {
my ( $self ) = @_;
return @{$self->{default_files}};
}
sub _pod_to_specs {
my ( $self, $file ) = @_;
$file ||= $self->{file} || __FILE__;
open my $fh, '<', $file or die "Cannot open $file: $OS_ERROR";
my @specs = ();
my @rules = ();
my $para;
local $INPUT_RECORD_SEPARATOR = '';
while ( $para = <$fh> ) {
next unless $para =~ m/^=head1 $self->{head1}/;
last;
}
while ( $para = <$fh> ) {
last if $para =~ m/^=over/;
next if $self->{skip_rules};
chomp $para;
$para =~ s/\s+/ /g;
$para =~ s/$POD_link_re/$1/go;
PTDEBUG && _d('Option rule:', $para);
push @rules, $para;
}
die "POD has no $self->{head1} section" unless $para;
do {
if ( my ($option) = $para =~ m/^=item $self->{item}/ ) {
chomp $para;
PTDEBUG && _d($para);
my %attribs;
$para = <$fh>; # read next paragraph, possibly attributes
if ( $para =~ m/: / ) { # attributes
$para =~ s/\s+\Z//g;
%attribs = map {
my ( $attrib, $val) = split(/: /, $_);
die "Unrecognized attribute for --$option: $attrib"
unless $self->{attributes}->{$attrib};
($attrib, $val);
} split(/; /, $para);
if ( $attribs{'short form'} ) {
$attribs{'short form'} =~ s/-//;
}
$para = <$fh>; # read next paragraph, probably short help desc
}
else {
PTDEBUG && _d('Option has no attributes');
}
$para =~ s/\s+\Z//g;
$para =~ s/\s+/ /g;
$para =~ s/$POD_link_re/$1/go;
$para =~ s/\.(?:\n.*| [A-Z].*|\Z)//s;
PTDEBUG && _d('Short help:', $para);
die "No description after option spec $option" if $para =~ m/^=item/;
if ( my ($base_option) = $option =~ m/^\[no\](.*)/ ) {
$option = $base_option;
$attribs{'negatable'} = 1;
}
push @specs, {
spec => $self->{parse_attributes}->($self, $option, \%attribs),
desc => $para
. (defined $attribs{default} ? " (default $attribs{default})" : ''),
group => ($attribs{'group'} ? $attribs{'group'} : 'default'),
attributes => \%attribs
};
}
while ( $para = <$fh> ) {
last unless $para;
if ( $para =~ m/^=head1/ ) {
$para = undef; # Can't 'last' out of a do {} block.
last;
}
last if $para =~ m/^=item /;
}
} while ( $para );
die "No valid specs in $self->{head1}" unless @specs;
close $fh;
return @specs, @rules;
}
sub _parse_specs {
my ( $self, @specs ) = @_;
my %disables; # special rule that requires deferred checking
foreach my $opt ( @specs ) {
if ( ref $opt ) { # It's an option spec, not a rule.
PTDEBUG && _d('Parsing opt spec:',
map { ($_, '=>', $opt->{$_}) } keys %$opt);
my ( $long, $short ) = $opt->{spec} =~ m/^([\w-]+)(?:\|([^!+=]*))?/;
if ( !$long ) {
die "Cannot parse long option from spec $opt->{spec}";
}
$opt->{long} = $long;
die "Duplicate long option --$long" if exists $self->{opts}->{$long};
$self->{opts}->{$long} = $opt;
if ( length $long == 1 ) {
PTDEBUG && _d('Long opt', $long, 'looks like short opt');
$self->{short_opts}->{$long} = $long;
}
if ( $short ) {
die "Duplicate short option -$short"
if exists $self->{short_opts}->{$short};
$self->{short_opts}->{$short} = $long;
$opt->{short} = $short;
}
else {
$opt->{short} = undef;
}
$opt->{is_negatable} = $opt->{spec} =~ m/!/ ? 1 : 0;
$opt->{is_cumulative} = $opt->{spec} =~ m/\+/ ? 1 : 0;
$opt->{is_repeatable} = $opt->{attributes}->{repeatable} ? 1 : 0;
$opt->{is_required} = $opt->{desc} =~ m/required/ ? 1 : 0;
$opt->{group} ||= 'default';
$self->{groups}->{ $opt->{group} }->{$long} = 1;
$opt->{value} = undef;
$opt->{got} = 0;
my ( $type ) = $opt->{spec} =~ m/=(.)/;
$opt->{type} = $type;
PTDEBUG && _d($long, 'type:', $type);
$opt->{spec} =~ s/=./=s/ if ( $type && $type =~ m/[HhAadzm]/ );
if ( (my ($def) = $opt->{desc} =~ m/default\b(?: ([^)]+))?/) ) {
$def = defined $def ? $def : 1;
$def = $def eq 'yes' ? 1 : $def eq 'no' ? 0 : $def;
$self->{defaults}->{$long} = $def;
PTDEBUG && _d($long, 'default:', $def);
}
if ( $long eq 'config' ) {
$self->{defaults}->{$long} = join(',', $self->get_defaults_files());
}
if ( (my ($dis) = $opt->{desc} =~ m/(disables .*)/) ) {
$disables{$long} = $dis;
PTDEBUG && _d('Deferring check of disables rule for', $opt, $dis);
}
$self->{opts}->{$long} = $opt;
}
else { # It's an option rule, not a spec.
PTDEBUG && _d('Parsing rule:', $opt);
push @{$self->{rules}}, $opt;
my @participants = $self->_get_participants($opt);
my $rule_ok = 0;
if ( $opt =~ m/mutually exclusive|one and only one/ ) {
$rule_ok = 1;
push @{$self->{mutex}}, \@participants;
PTDEBUG && _d(@participants, 'are mutually exclusive');
}
if ( $opt =~ m/at least one|one and only one/ ) {
$rule_ok = 1;
push @{$self->{atleast1}}, \@participants;
PTDEBUG && _d(@participants, 'require at least one');
}
if ( $opt =~ m/default to/ ) {
$rule_ok = 1;
$self->{defaults_to}->{$participants[0]} = $participants[1];
PTDEBUG && _d($participants[0], 'defaults to', $participants[1]);
}
if ( $opt =~ m/restricted to option groups/ ) {
$rule_ok = 1;
my ($groups) = $opt =~ m/groups ([\w\s\,]+)/;
my @groups = split(',', $groups);
%{$self->{allowed_groups}->{$participants[0]}} = map {
s/\s+//;
$_ => 1;
} @groups;
}
if( $opt =~ m/accepts additional command-line arguments/ ) {
$rule_ok = 1;
$self->{strict} = 0;
PTDEBUG && _d("Strict mode disabled by rule");
}
die "Unrecognized option rule: $opt" unless $rule_ok;
}
}
foreach my $long ( keys %disables ) {
my @participants = $self->_get_participants($disables{$long});
$self->{disables}->{$long} = \@participants;
PTDEBUG && _d('Option', $long, 'disables', @participants);
}
return;
}
sub _get_participants {
my ( $self, $str ) = @_;
my @participants;
foreach my $long ( $str =~ m/--(?:\[no\])?([\w-]+)/g ) {
die "Option --$long does not exist while processing rule $str"
unless exists $self->{opts}->{$long};
push @participants, $long;
}
PTDEBUG && _d('Participants for', $str, ':', @participants);
return @participants;
}
sub opts {
my ( $self ) = @_;
my %opts = %{$self->{opts}};
return %opts;
}
sub short_opts {
my ( $self ) = @_;
my %short_opts = %{$self->{short_opts}};
return %short_opts;
}
sub set_defaults {
my ( $self, %defaults ) = @_;
$self->{defaults} = {};
foreach my $long ( keys %defaults ) {
die "Cannot set default for nonexistent option $long"
unless exists $self->{opts}->{$long};
$self->{defaults}->{$long} = $defaults{$long};
PTDEBUG && _d('Default val for', $long, ':', $defaults{$long});
}
return;
}
sub get_defaults {
my ( $self ) = @_;
return $self->{defaults};
}
sub get_groups {
my ( $self ) = @_;
return $self->{groups};
}
sub _set_option {
my ( $self, $opt, $val ) = @_;
my $long = exists $self->{opts}->{$opt} ? $opt
: exists $self->{short_opts}->{$opt} ? $self->{short_opts}->{$opt}
: die "Getopt::Long gave a nonexistent option: $opt";
$opt = $self->{opts}->{$long};
if ( $opt->{is_cumulative} ) {
$opt->{value}++;
}
elsif ( ($opt->{type} || '') eq 's' && $val =~ m/^--?(.+)/ ) {
my $next_opt = $1;
if ( exists $self->{opts}->{$next_opt}
|| exists $self->{short_opts}->{$next_opt} ) {
$self->save_error("--$long requires a string value");
return;
}
else {
if ($opt->{is_repeatable}) {
push @{$opt->{value}} , $val;
}
else {
$opt->{value} = $val;
}
}
}
else {
if ($opt->{is_repeatable}) {
push @{$opt->{value}} , $val;
}
else {
$opt->{value} = $val;
}
}
$opt->{got} = 1;
PTDEBUG && _d('Got option', $long, '=', $val);
}
sub get_opts {
my ( $self ) = @_;
foreach my $long ( keys %{$self->{opts}} ) {
$self->{opts}->{$long}->{got} = 0;
$self->{opts}->{$long}->{value}
= exists $self->{defaults}->{$long} ? $self->{defaults}->{$long}
: $self->{opts}->{$long}->{is_cumulative} ? 0
: undef;
}
$self->{got_opts} = 0;
$self->{errors} = [];
if ( @ARGV && $ARGV[0] =~/^--config=/ ) {
$ARGV[0] = substr($ARGV[0],9);
$ARGV[0] =~ s/^'(.*)'$/$1/;
$ARGV[0] =~ s/^"(.*)"$/$1/;
$self->_set_option('config', shift @ARGV);
}
if ( @ARGV && $ARGV[0] eq "--config" ) {
shift @ARGV;
$self->_set_option('config', shift @ARGV);
}
if ( $self->has('config') ) {
my @extra_args;
foreach my $filename ( split(',', $self->get('config')) ) {
eval {
push @extra_args, $self->_read_config_file($filename);
};
if ( $EVAL_ERROR ) {
if ( $self->got('config') ) {
die $EVAL_ERROR;
}
elsif ( PTDEBUG ) {
_d($EVAL_ERROR);
}
}
}
unshift @ARGV, @extra_args;
}
Getopt::Long::Configure('no_ignore_case', 'bundling');
GetOptions(
map { $_->{spec} => sub { $self->_set_option(@_); } }
grep { $_->{long} ne 'config' } # --config is handled specially above.
values %{$self->{opts}}
) or $self->save_error('Error parsing options');
if ( exists $self->{opts}->{version} && $self->{opts}->{version}->{got} ) {
if ( $self->{version} ) {
print $self->{version}, "\n";
exit 0;
}
else {
print "Error parsing version. See the VERSION section of the tool's documentation.\n";
exit 1;
}
}
if ( exists $self->{opts}->{'buffer-stdout'} && $self->{opts}->{'buffer-stdout'}->{got} ) {
STDOUT->autoflush(1 - $self->{opts}->{'buffer-stdout'}->{value});
}
if ( @ARGV && $self->{strict} ) {
$self->save_error("Unrecognized command-line options @ARGV");
}
foreach my $mutex ( @{$self->{mutex}} ) {
my @set = grep { $self->{opts}->{$_}->{got} } @$mutex;
if ( @set > 1 ) {
my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
@{$mutex}[ 0 .. scalar(@$mutex) - 2] )
. ' and --'.$self->{opts}->{$mutex->[-1]}->{long}
. ' are mutually exclusive.';
$self->save_error($err);
}
}
foreach my $required ( @{$self->{atleast1}} ) {
my @set = grep { $self->{opts}->{$_}->{got} } @$required;
if ( @set == 0 ) {
my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
@{$required}[ 0 .. scalar(@$required) - 2] )
.' or --'.$self->{opts}->{$required->[-1]}->{long};
$self->save_error("Specify at least one of $err");
}
}
$self->_check_opts( keys %{$self->{opts}} );
$self->{got_opts} = 1;
return;
}
sub _check_opts {
my ( $self, @long ) = @_;
my $long_last = scalar @long;
while ( @long ) {
foreach my $i ( 0..$#long ) {
my $long = $long[$i];
next unless $long;
my $opt = $self->{opts}->{$long};
if ( $opt->{got} ) {
if ( exists $self->{disables}->{$long} ) {
my @disable_opts = @{$self->{disables}->{$long}};
map { $self->{opts}->{$_}->{value} = undef; } @disable_opts;
PTDEBUG && _d('Unset options', @disable_opts,
'because', $long,'disables them');
}
if ( exists $self->{allowed_groups}->{$long} ) {
my @restricted_groups = grep {
!exists $self->{allowed_groups}->{$long}->{$_}
} keys %{$self->{groups}};
my @restricted_opts;
foreach my $restricted_group ( @restricted_groups ) {
RESTRICTED_OPT:
foreach my $restricted_opt (
keys %{$self->{groups}->{$restricted_group}} )
{
next RESTRICTED_OPT if $restricted_opt eq $long;
push @restricted_opts, $restricted_opt
if $self->{opts}->{$restricted_opt}->{got};
}
}
if ( @restricted_opts ) {
my $err;
if ( @restricted_opts == 1 ) {
$err = "--$restricted_opts[0]";
}
else {
$err = join(', ',
map { "--$self->{opts}->{$_}->{long}" }
grep { $_ }
@restricted_opts[0..scalar(@restricted_opts) - 2]
)
. ' or --'.$self->{opts}->{$restricted_opts[-1]}->{long};
}
$self->save_error("--$long is not allowed with $err");
}
}
}
elsif ( $opt->{is_required} ) {
$self->save_error("Required option --$long must be specified");
}
$self->_validate_type($opt);
if ( $opt->{parsed} ) {
delete $long[$i];
}
else {
PTDEBUG && _d('Temporarily failed to parse', $long);
}
}
die "Failed to parse options, possibly due to circular dependencies"
if @long == $long_last;
$long_last = @long;
}
return;
}
sub _validate_type {
my ( $self, $opt ) = @_;
return unless $opt;
if ( !$opt->{type} ) {
$opt->{parsed} = 1;
return;
}
my $val = $opt->{value};
if ( $val && $opt->{type} eq 'm' ) { # type time
PTDEBUG && _d('Parsing option', $opt->{long}, 'as a time value');
my ( $prefix, $num, $suffix ) = $val =~ m/([+-]?)(\d+)([a-z])?$/;
if ( !$suffix ) {
my ( $s ) = $opt->{desc} =~ m/\(suffix (.)\)/;
$suffix = $s || 's';
PTDEBUG && _d('No suffix given; using', $suffix, 'for',
$opt->{long}, '(value:', $val, ')');
}
if ( $suffix =~ m/[smhd]/ ) {
$val = $suffix eq 's' ? $num # Seconds
: $suffix eq 'm' ? $num * 60 # Minutes
: $suffix eq 'h' ? $num * 3600 # Hours
: $num * 86400; # Days
$opt->{value} = ($prefix || '') . $val;
PTDEBUG && _d('Setting option', $opt->{long}, 'to', $val);
}
else {
$self->save_error("Invalid time suffix for --$opt->{long}");
}
}
elsif ( $val && $opt->{type} eq 'd' ) { # type DSN
PTDEBUG && _d('Parsing option', $opt->{long}, 'as a DSN');
my $prev = {};
my $from_key = $self->{defaults_to}->{ $opt->{long} };
if ( $from_key ) {
PTDEBUG && _d($opt->{long}, 'DSN copies from', $from_key, 'DSN');
if ( $self->{opts}->{$from_key}->{parsed} ) {
$prev = $self->{opts}->{$from_key}->{value};
}
else {
PTDEBUG && _d('Cannot parse', $opt->{long}, 'until',
$from_key, 'parsed');
return;
}
}
my $defaults = $self->{DSNParser}->parse_options($self);
if (!$opt->{attributes}->{repeatable}) {
$opt->{value} = $self->{DSNParser}->parse($val, $prev, $defaults);
} else {
my $values = [];
for my $dsn_string (@$val) {
push @$values, $self->{DSNParser}->parse($dsn_string, $prev, $defaults);
}
$opt->{value} = $values;
}
}
elsif ( $val && $opt->{type} eq 'z' ) { # type size
PTDEBUG && _d('Parsing option', $opt->{long}, 'as a size value');
$self->_parse_size($opt, $val);
}
elsif ( $opt->{type} eq 'H' || (defined $val && $opt->{type} eq 'h') ) {
$opt->{value} = { map { $_ => 1 } split(/(?<!\\),\s*/, ($val || '')) };
}
elsif ( $opt->{type} eq 'A' || (defined $val && $opt->{type} eq 'a') ) {
$opt->{value} = [ split(/(?<!\\),\s*/, ($val || '')) ];
}
else {
PTDEBUG && _d('Nothing to validate for option',
$opt->{long}, 'type', $opt->{type}, 'value', $val);
}
$opt->{parsed} = 1;
return;
}
sub get {
my ( $self, $opt ) = @_;
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
die "Option $opt does not exist"
unless $long && exists $self->{opts}->{$long};
return $self->{opts}->{$long}->{value};
}
sub got {
my ( $self, $opt ) = @_;
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
die "Option $opt does not exist"
unless $long && exists $self->{opts}->{$long};
return $self->{opts}->{$long}->{got};
}
sub has {
my ( $self, $opt ) = @_;
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
return defined $long ? exists $self->{opts}->{$long} : 0;
}
sub set {
my ( $self, $opt, $val ) = @_;
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
die "Option $opt does not exist"
unless $long && exists $self->{opts}->{$long};
$self->{opts}->{$long}->{value} = $val;
return;
}
sub save_error {
my ( $self, $error ) = @_;
push @{$self->{errors}}, $error;
return;
}
sub errors {
my ( $self ) = @_;
return $self->{errors};
}
sub usage {
my ( $self ) = @_;
warn "No usage string is set" unless $self->{usage}; # XXX
return "Usage: " . ($self->{usage} || '') . "\n";
}
sub descr {
my ( $self ) = @_;
warn "No description string is set" unless $self->{description}; # XXX
my $descr = ($self->{description} || $self->{program_name} || '')
. " For more details, please use the --help option, "
. "or try 'perldoc $PROGRAM_NAME' "
. "for complete documentation.";
$descr = join("\n", $descr =~ m/(.{0,80})(?:\s+|$)/g)
unless $ENV{DONT_BREAK_LINES};
$descr =~ s/ +$//mg;
return $descr;
}
sub usage_or_errors {
my ( $self, $file, $return ) = @_;
$file ||= $self->{file} || __FILE__;
if ( !$self->{description} || !$self->{usage} ) {
PTDEBUG && _d("Getting description and usage from SYNOPSIS in", $file);
my %synop = $self->_parse_synopsis($file);
$self->{description} ||= $synop{description};
$self->{usage} ||= $synop{usage};
PTDEBUG && _d("Description:", $self->{description},
"\nUsage:", $self->{usage});
}
if ( $self->{opts}->{help}->{got} ) {
print $self->print_usage() or die "Cannot print usage: $OS_ERROR";
exit 0 unless $return;
}
elsif ( scalar @{$self->{errors}} ) {
print $self->print_errors() or die "Cannot print errors: $OS_ERROR";
exit 1 unless $return;
}
return;
}
sub print_errors {
my ( $self ) = @_;
my $usage = $self->usage() . "\n";
if ( (my @errors = @{$self->{errors}}) ) {
$usage .= join("\n * ", 'Errors in command-line arguments:', @errors)
. "\n";
}
return $usage . "\n" . $self->descr();
}
sub print_usage {
my ( $self ) = @_;
die "Run get_opts() before print_usage()" unless $self->{got_opts};
my @opts = values %{$self->{opts}};
my $maxl = max(
map {
length($_->{long}) # option long name
+ ($_->{is_negatable} ? 4 : 0) # "[no]" if opt is negatable
+ ($_->{type} ? 2 : 0) # "=x" where x is the opt type
}
@opts);
my $maxs = max(0,
map {
length($_)
+ ($self->{opts}->{$_}->{is_negatable} ? 4 : 0)
+ ($self->{opts}->{$_}->{type} ? 2 : 0)
}
values %{$self->{short_opts}});
my $lcol = max($maxl, ($maxs + 3));
my $rcol = 80 - $lcol - 6;
my $rpad = ' ' x ( 80 - $rcol );
$maxs = max($lcol - 3, $maxs);
my $usage = $self->descr() . "\n" . $self->usage();
my @groups = reverse sort grep { $_ ne 'default'; } keys %{$self->{groups}};
push @groups, 'default';
foreach my $group ( reverse @groups ) {
$usage .= "\n".($group eq 'default' ? 'Options' : $group).":\n\n";
foreach my $opt (
sort { $a->{long} cmp $b->{long} }
grep { $_->{group} eq $group }
@opts )
{
my $long = $opt->{is_negatable} ? "[no]$opt->{long}" : $opt->{long};
my $short = $opt->{short};
my $desc = $opt->{desc};
$long .= $opt->{type} ? "=$opt->{type}" : "";
if ( $opt->{type} && $opt->{type} eq 'm' ) {
my ($s) = $desc =~ m/\(suffix (.)\)/;
$s ||= 's';
$desc =~ s/\s+\(suffix .\)//;
$desc .= ". Optional suffix s=seconds, m=minutes, h=hours, "
. "d=days; if no suffix, $s is used.";
}
$desc = join("\n$rpad", grep { $_ } $desc =~ m/(.{0,$rcol}(?!\W))(?:\s+|(?<=\W)|$)/g);
$desc =~ s/ +$//mg;
if ( $short ) {
$usage .= sprintf(" --%-${maxs}s -%s %s\n", $long, $short, $desc);
}
else {
$usage .= sprintf(" --%-${lcol}s %s\n", $long, $desc);
}
}
}
$usage .= "\nOption types: s=string, i=integer, f=float, h/H/a/A=comma-separated list, d=DSN, z=size, m=time\n";
if ( (my @rules = @{$self->{rules}}) ) {
$usage .= "\nRules:\n\n";
$usage .= join("\n", map { " $_" } @rules) . "\n";
}
if ( $self->{DSNParser} ) {
$usage .= "\n" . $self->{DSNParser}->usage();
}
$usage .= "\nOptions and values after processing arguments:\n\n";
foreach my $opt ( sort { $a->{long} cmp $b->{long} } @opts ) {
my $val = $opt->{value};
my $type = $opt->{type} || '';
my $bool = $opt->{spec} =~ m/^[\w-]+(?:\|[\w-])?!?$/;
$val = $bool ? ( $val ? 'TRUE' : 'FALSE' )
: !defined $val ? '(No value)'
: $type eq 'd' ? $self->{DSNParser}->as_string($val)
: $type =~ m/H|h/ ? join(',', sort keys %$val)
: $type =~ m/A|a/ ? join(',', @$val)
: $val;
$usage .= sprintf(" --%-${lcol}s %s\n", $opt->{long}, $val);
}
return $usage;
}
sub prompt_noecho {
shift @_ if ref $_[0] eq __PACKAGE__;
my ( $prompt ) = @_;
local $OUTPUT_AUTOFLUSH = 1;
print STDERR $prompt
or die "Cannot print: $OS_ERROR";
my $response;
eval {
require Term::ReadKey;
Term::ReadKey::ReadMode('noecho');
chomp($response = <STDIN>);
Term::ReadKey::ReadMode('normal');
print "\n"
or die "Cannot print: $OS_ERROR";
};
if ( $EVAL_ERROR ) {
die "Cannot read response; is Term::ReadKey installed? $EVAL_ERROR";
}
return $response;
}
sub _read_config_file {
my ( $self, $filename ) = @_;
open my $fh, "<", $filename or die "Cannot open $filename: $OS_ERROR\n";
my @args;
my $prefix = '--';
my $parse = 1;
LINE:
while ( my $line = <$fh> ) {
chomp $line;
next LINE if $line =~ m/^\s*(?:\#|\;|$)/;
$line =~ s/\s+#.*$//g;
$line =~ s/^\s+|\s+$//g;
if ( $line eq '--' ) {
$prefix = '';
$parse = 0;
next LINE;
}
if ( $parse
&& !$self->has('version-check')
&& $line =~ /version-check/
) {
next LINE;
}
if ( $parse
&& (my($opt, $arg) = $line =~ m/^\s*([^=\s]+?)(?:\s*=\s*(.*?)\s*)?$/)
) {
push @args, grep { defined $_ } ("$prefix$opt", $arg);
}
elsif ( $line =~ m/./ ) {
push @args, $line;
}
else {
die "Syntax error in file $filename at line $INPUT_LINE_NUMBER";
}
}
close $fh;
return @args;
}
sub read_para_after {
my ( $self, $file, $regex ) = @_;
open my $fh, "<", $file or die "Can't open $file: $OS_ERROR";
local $INPUT_RECORD_SEPARATOR = '';
my $para;
while ( $para = <$fh> ) {
next unless $para =~ m/^=pod$/m;
last;
}
while ( $para = <$fh> ) {
next unless $para =~ m/$regex/;
last;
}
$para = <$fh>;
chomp($para);
close $fh or die "Can't close $file: $OS_ERROR";
return $para;
}
sub clone {
my ( $self ) = @_;
my %clone = map {
my $hashref = $self->{$_};
my $val_copy = {};
foreach my $key ( keys %$hashref ) {
my $ref = ref $hashref->{$key};
$val_copy->{$key} = !$ref ? $hashref->{$key}
: $ref eq 'HASH' ? { %{$hashref->{$key}} }
: $ref eq 'ARRAY' ? [ @{$hashref->{$key}} ]
: $hashref->{$key};
}
$_ => $val_copy;
} qw(opts short_opts defaults);
foreach my $scalar ( qw(got_opts) ) {
$clone{$scalar} = $self->{$scalar};
}
return bless \%clone;
}
sub _parse_size {
my ( $self, $opt, $val ) = @_;
if ( lc($val || '') eq 'null' ) {
PTDEBUG && _d('NULL size for', $opt->{long});
$opt->{value} = 'null';
return;
}
my %factor_for = (k => 1_024, M => 1_048_576, G => 1_073_741_824);
my ($pre, $num, $factor) = $val =~ m/^([+-])?(\d+)([kMG])?$/;
if ( defined $num ) {
if ( $factor ) {
$num *= $factor_for{$factor};
PTDEBUG && _d('Setting option', $opt->{y},
'to num', $num, '* factor', $factor);
}
$opt->{value} = ($pre || '') . $num;
}
else {
$self->save_error("Invalid size for --$opt->{long}: $val");
}
return;
}
sub _parse_attribs {
my ( $self, $option, $attribs ) = @_;
my $types = $self->{types};
return $option
. ($attribs->{'short form'} ? '|' . $attribs->{'short form'} : '' )
. ($attribs->{'negatable'} ? '!' : '' )
. ($attribs->{'cumulative'} ? '+' : '' )
. ($attribs->{'type'} ? '=' . $types->{$attribs->{type}} : '' );
}
sub _parse_synopsis {
my ( $self, $file ) = @_;
$file ||= $self->{file} || __FILE__;
PTDEBUG && _d("Parsing SYNOPSIS in", $file);
local $INPUT_RECORD_SEPARATOR = ''; # read paragraphs
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
my $para;
1 while defined($para = <$fh>) && $para !~ m/^=head1 SYNOPSIS/;
die "$file does not contain a SYNOPSIS section" unless $para;
my @synop;
for ( 1..2 ) { # 1 for the usage, 2 for the description
my $para = <$fh>;
push @synop, $para;
}
close $fh;
PTDEBUG && _d("Raw SYNOPSIS text:", @synop);
my ($usage, $desc) = @synop;
die "The SYNOPSIS section in $file is not formatted properly"
unless $usage && $desc;
$usage =~ s/^\s*Usage:\s+(.+)/$1/;
chomp $usage;
$desc =~ s/\n/ /g;
$desc =~ s/\s{2,}/ /g;
$desc =~ s/\. ([A-Z][a-z])/. $1/g;
$desc =~ s/\s+$//;
return (
description => $desc,
usage => $usage,
);
};
sub set_vars {
my ($self, $file) = @_;
$file ||= $self->{file} || __FILE__;
my %user_vars;
my $user_vars = $self->has('set-vars') ? $self->get('set-vars') : undef;
if ( $user_vars ) {
foreach my $var_val ( @$user_vars ) {
my ($var, $val) = $var_val =~ m/([^\s=]+)=(\S+)/;
die "Invalid --set-vars value: $var_val\n" unless $var && defined $val;
$user_vars{$var} = {
val => $val,
default => 0,
};
}
}
my %default_vars;
my $default_vars = $self->read_para_after($file, qr/MAGIC_set_vars/);
if ( $default_vars ) {
%default_vars = map {
my $var_val = $_;
my ($var, $val) = $var_val =~ m/([^\s=]+)=(\S+)/;
die "Invalid --set-vars value: $var_val\n" unless $var && defined $val;
$var => {
val => $val,
default => 1,
};
} split("\n", $default_vars);
}
my %vars = (
%default_vars, # first the tool's defaults
%user_vars, # then the user's which overwrite the defaults
);
PTDEBUG && _d('--set-vars:', Dumper(\%vars));
return \%vars;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
if ( PTDEBUG ) {
print STDERR '# ', $^X, ' ', $], "\n";
if ( my $uname = `uname -a` ) {
$uname =~ s/\s+/ /g;
print STDERR "# $uname\n";
}
print STDERR '# Arguments: ',
join(' ', map { my $a = "_[$_]_"; $a =~ s/\n/\n# /g; $a; } @ARGV), "\n";
}
1;
}
# ###########################################################################
# End OptionParser package
# ###########################################################################
# ###########################################################################
# Quoter package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/Quoter.pm
# t/lib/Quoter.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package Quoter;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Data::Dumper;
$Data::Dumper::Indent = 1;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Quotekeys = 0;
sub new {
my ( $class, %args ) = @_;
return bless {}, $class;
}
sub quote {
my ( $self, @vals ) = @_;
foreach my $val ( @vals ) {
$val =~ s/`/``/g;
}
return join('.', map { '`' . $_ . '`' } @vals);
}
sub quote_val {
my ( $self, $val, %args ) = @_;
return 'NULL' unless defined $val; # undef = NULL
return "''" if $val eq ''; # blank string = ''
return $val if $val =~ m/^0x[0-9a-fA-F]+$/ # quote hex data
&& !$args{is_char}; # unless is_char is true
if ( $args{is_float} ) {
return sprintf("%.17g", $val) if $val - "$val" != 0;
return $val;
}
$val =~ s/(['\\])/\\$1/g;
return "'$val'";
}
sub split_unquote {
my ( $self, $db_tbl, $default_db ) = @_;
my ( $db, $tbl ) = split(/[.]/, $db_tbl);
if ( !$tbl ) {
$tbl = $db;
$db = $default_db;
}
for ($db, $tbl) {
next unless $_;
s/\A`//;
s/`\z//;
s/``/`/g;
}
return ($db, $tbl);
}
sub literal_like {
my ( $self, $like ) = @_;
return unless $like;
$like =~ s/([%_])/\\$1/g;
return "'$like'";
}
sub join_quote {
my ( $self, $default_db, $db_tbl ) = @_;
return unless $db_tbl;
my ($db, $tbl) = split(/[.]/, $db_tbl);
if ( !$tbl ) {
$tbl = $db;
$db = $default_db;
}
$db = "`$db`" if $db && $db !~ m/^`/;
$tbl = "`$tbl`" if $tbl && $tbl !~ m/^`/;
return $db ? "$db.$tbl" : $tbl;
}
sub serialize_list {
my ( $self, @args ) = @_;
PTDEBUG && _d('Serializing', Dumper(\@args));
return unless @args;
my @parts;
foreach my $arg ( @args ) {
if ( defined $arg ) {
$arg =~ s/,/\\,/g; # escape commas
$arg =~ s/\\N/\\\\N/g; # escape literal \N
push @parts, $arg;
}
else {
push @parts, '\N';
}
}
my $string = join(',', @parts);
PTDEBUG && _d('Serialized: <', $string, '>');
return $string;
}
sub deserialize_list {
my ( $self, $string ) = @_;
PTDEBUG && _d('Deserializing <', $string, '>');
die "Cannot deserialize an undefined string" unless defined $string;
my @parts;
foreach my $arg ( split(/(?<!\\),/, $string) ) {
if ( $arg eq '\N' ) {
$arg = undef;
}
else {
$arg =~ s/\\,/,/g;
$arg =~ s/\\\\N/\\N/g;
}
push @parts, $arg;
}
if ( !@parts ) {
my $n_empty_strings = $string =~ tr/,//;
$n_empty_strings++;
PTDEBUG && _d($n_empty_strings, 'empty strings');
map { push @parts, '' } 1..$n_empty_strings;
}
elsif ( $string =~ m/(?<!\\),$/ ) {
PTDEBUG && _d('Last value is an empty string');
push @parts, '';
}
PTDEBUG && _d('Deserialized', Dumper(\@parts));
return @parts;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End Quoter package
# ###########################################################################
# ###########################################################################
# TableParser package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/TableParser.pm
# t/lib/TableParser.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package TableParser;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Data::Dumper;
$Data::Dumper::Indent = 1;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Quotekeys = 0;
local $EVAL_ERROR;
eval {
require Quoter;
};
sub new {
my ( $class, %args ) = @_;
my $self = { %args };
$self->{Quoter} ||= Quoter->new();
return bless $self, $class;
}
sub Quoter { shift->{Quoter} }
sub get_create_table {
my ( $self, $dbh, $db, $tbl ) = @_;
die "I need a dbh parameter" unless $dbh;
die "I need a db parameter" unless $db;
die "I need a tbl parameter" unless $tbl;
my $q = $self->{Quoter};
my $new_sql_mode
= q{/*!40101 SET @OLD_SQL_MODE := @@SQL_MODE, }
. q{@@SQL_MODE := '', }
. q{@OLD_QUOTE := @@SQL_QUOTE_SHOW_CREATE, }
. q{@@SQL_QUOTE_SHOW_CREATE := 1 */};
my $old_sql_mode
= q{/*!40101 SET @@SQL_MODE := @OLD_SQL_MODE, }
. q{@@SQL_QUOTE_SHOW_CREATE := @OLD_QUOTE */};
PTDEBUG && _d($new_sql_mode);
eval { $dbh->do($new_sql_mode); };
PTDEBUG && $EVAL_ERROR && _d($EVAL_ERROR);
my $use_sql = 'USE ' . $q->quote($db);
PTDEBUG && _d($dbh, $use_sql);
$dbh->do($use_sql);
my $show_sql = "SHOW CREATE TABLE " . $q->quote($db, $tbl);
PTDEBUG && _d($show_sql);
my $href;
eval { $href = $dbh->selectrow_hashref($show_sql); };
if ( my $e = $EVAL_ERROR ) {
PTDEBUG && _d($old_sql_mode);
eval { $dbh->do($old_sql_mode); };
PTDEBUG && $EVAL_ERROR && _d($EVAL_ERROR);
die $e;
}
PTDEBUG && _d($old_sql_mode);
eval { $dbh->do($old_sql_mode); };
PTDEBUG && $EVAL_ERROR && _d($EVAL_ERROR);
my ($key) = grep { m/create (?:table|view)/i } keys %$href;
if ( !$key ) {
die "Error: no 'Create Table' or 'Create View' in result set from "
. "$show_sql: " . Dumper($href);
}
return $href->{$key};
}
sub parse {
my ( $self, $ddl, $opts ) = @_;
return unless $ddl;
if ( $ddl =~ m/CREATE (?:TEMPORARY )?TABLE "/ ) {
$ddl = $self->ansi_to_legacy($ddl);
}
elsif ( $ddl !~ m/CREATE (?:TEMPORARY )?TABLE `/ ) {
die "TableParser doesn't handle CREATE TABLE without quoting.";
}
my ($name) = $ddl =~ m/CREATE (?:TEMPORARY )?TABLE\s+(`.+?`)/;
(undef, $name) = $self->{Quoter}->split_unquote($name) if $name;
$ddl =~ s/(`[^`\n]+`)/\L$1/gm;
my $engine = $self->get_engine($ddl);
my @defs = $ddl =~ m/(?:(?<=,\n)|(?<=\(\n))(\s+`(?:.|\n)+?`.+?),?\n/g;
my @cols = map { $_ =~ m/`([^`]+)`/ } @defs;
PTDEBUG && _d('Table cols:', join(', ', map { "`$_`" } @cols));
my %def_for;
@def_for{@cols} = @defs;
my (@nums, @null, @non_generated);
my (%type_for, %is_nullable, %is_numeric, %is_autoinc, %is_generated);
foreach my $col ( @cols ) {
my $def = $def_for{$col};
$def =~ s/``//g;
my ( $type ) = $def =~ m/`[^`]+`\s([a-z]+)/;
die "Can't determine column type for $def" unless $type;
$type_for{$col} = $type;
if ( $type =~ m/(?:(?:tiny|big|medium|small)?int|float|double|decimal|year)/ ) {
push @nums, $col;
$is_numeric{$col} = 1;
}
if ( $def !~ m/NOT NULL/ ) {
push @null, $col;
$is_nullable{$col} = 1;
}
if ( remove_quoted_text($def) =~ m/\WGENERATED\W/i ) {
$is_generated{$col} = 1;
} else {
push @non_generated, $col;
}
$is_autoinc{$col} = $def =~ m/AUTO_INCREMENT/i ? 1 : 0;
}
my ($keys, $clustered_key) = $self->get_keys($ddl, $opts, \%is_nullable);
my ($charset) = $ddl =~ m/DEFAULT CHARSET=(\w+)/;
return {
name => $name,
cols => \@cols,
col_posn => { map { $cols[$_] => $_ } 0..$#cols },
is_col => { map { $_ => 1 } @non_generated },
null_cols => \@null,
is_nullable => \%is_nullable,
non_generated_cols => \@non_generated,
is_autoinc => \%is_autoinc,
is_generated => \%is_generated,
clustered_key => $clustered_key,
keys => $keys,
defs => \%def_for,
numeric_cols => \@nums,
is_numeric => \%is_numeric,
engine => $engine,
type_for => \%type_for,
charset => $charset,
};
}
sub remove_quoted_text {
my ($string) = @_;
$string =~ s/\\['"]//g;
$string =~ s/`[^`]*?`//g;
$string =~ s/"[^"]*?"//g;
$string =~ s/'[^']*?'//g;
return $string;
}
sub sort_indexes {
my ( $self, $tbl ) = @_;
my @indexes
= sort {
(($a ne 'PRIMARY') <=> ($b ne 'PRIMARY'))
|| ( !$tbl->{keys}->{$a}->{is_unique} <=> !$tbl->{keys}->{$b}->{is_unique} )
|| ( $tbl->{keys}->{$a}->{is_nullable} <=> $tbl->{keys}->{$b}->{is_nullable} )
|| ( scalar(@{$tbl->{keys}->{$a}->{cols}}) <=> scalar(@{$tbl->{keys}->{$b}->{cols}}) )
}
grep {
$tbl->{keys}->{$_}->{type} eq 'BTREE'
}
sort keys %{$tbl->{keys}};
PTDEBUG && _d('Indexes sorted best-first:', join(', ', @indexes));
return @indexes;
}
sub find_best_index {
my ( $self, $tbl, $index ) = @_;
my $best;
if ( $index ) {
($best) = grep { uc $_ eq uc $index } keys %{$tbl->{keys}};
}
if ( !$best ) {
if ( $index ) {
die "Index '$index' does not exist in table";
}
else {
($best) = $self->sort_indexes($tbl);
}
}
PTDEBUG && _d('Best index found is', $best);
return $best;
}
sub find_possible_keys {
my ( $self, $dbh, $database, $table, $quoter, $where ) = @_;
return () unless $where;
my $sql = 'EXPLAIN SELECT * FROM ' . $quoter->quote($database, $table)
. ' WHERE ' . $where;
PTDEBUG && _d($sql);
my $expl = $dbh->selectrow_hashref($sql);
$expl = { map { lc($_) => $expl->{$_} } keys %$expl };
if ( $expl->{possible_keys} ) {
PTDEBUG && _d('possible_keys =', $expl->{possible_keys});
my @candidates = split(',', $expl->{possible_keys});
my %possible = map { $_ => 1 } @candidates;
if ( $expl->{key} ) {
PTDEBUG && _d('MySQL chose', $expl->{key});
unshift @candidates, grep { $possible{$_} } split(',', $expl->{key});
PTDEBUG && _d('Before deduping:', join(', ', @candidates));
my %seen;
@candidates = grep { !$seen{$_}++ } @candidates;
}
PTDEBUG && _d('Final list:', join(', ', @candidates));
return @candidates;
}
else {
PTDEBUG && _d('No keys in possible_keys');
return ();
}
}
sub check_table {
my ( $self, %args ) = @_;
my @required_args = qw(dbh db tbl);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($dbh, $db, $tbl) = @args{@required_args};
my $q = $self->{Quoter} || 'Quoter';
$self->{check_table_error} = undef;
my $lctn_sql = 'SELECT @@lower_case_table_names';
PTDEBUG && _d($lctn_sql);
my $lower_case_table_names;
eval { ($lower_case_table_names) = $dbh->selectrow_array($lctn_sql); };
if ( $EVAL_ERROR ) {
PTDEBUG && _d($EVAL_ERROR);
$self->{check_table_error} = $EVAL_ERROR;
return 0;
}
my $db_tbl = $q->quote($db, $tbl);
PTDEBUG && _d('Checking', $db_tbl);
my $sql = "SHOW TABLES FROM " . $q->quote($db)
. ' LIKE ' . $q->literal_like($tbl);
PTDEBUG && _d($sql);
my $row;
eval {
$row = $dbh->selectrow_arrayref($sql);
};
if ( my $e = $EVAL_ERROR ) {
PTDEBUG && _d($e);
$self->{check_table_error} = $e;
return 0;
}
if ( !$row->[0]
|| ( $lower_case_table_names == 0 && $row->[0] ne $tbl )
|| ( $lower_case_table_names > 0 && lc $row->[0] ne lc $tbl ) ) {
PTDEBUG && _d('Table does not exist');
return 0;
}
PTDEBUG && _d('Table', $db, $tbl, 'exists');
return 1;
}
sub get_engine {
my ( $self, $ddl, $opts ) = @_;
my ( $engine ) = $ddl =~ m/\).*?(?:ENGINE|TYPE)=(\w+)/;
PTDEBUG && _d('Storage engine:', $engine);
return $engine || undef;
}
sub get_keys {
my ( $self, $ddl, $opts, $is_nullable ) = @_;
my $engine = $self->get_engine($ddl);
my $keys = {};
my $clustered_key = undef;
KEY:
foreach my $key ( $ddl =~ m/^ ((?:[A-Z]+ )?KEY [\s\S]*?\),?.*)$/gm ) {
next KEY if $key =~ m/FOREIGN/;
my $key_ddl = $key;
PTDEBUG && _d('Parsed key:', $key_ddl);
if ( !$engine || $engine !~ m/MEMORY|HEAP/ ) {
$key =~ s/USING HASH/USING BTREE/;
}
my ( $type, $cols ) = $key =~ m/(?:USING (\w+))? \(([\s\S]+)\)/;
my ( $special ) = $key =~ m/(FULLTEXT|SPATIAL)/;
$type = $type || $special || 'BTREE';
my ($name) = $key =~ m/(PRIMARY|`[^`]*`)/;
my $unique = $key =~ m/PRIMARY|UNIQUE/ ? 1 : 0;
my @cols;
my @col_prefixes;
foreach my $col_def ( $cols =~ m/`[^`]+`(?:\(\d+\))?/g ) {
my ($name, $prefix) = $col_def =~ m/`([^`]+)`(?:\((\d+)\))?/;
push @cols, $name;
push @col_prefixes, $prefix;
}
$name =~ s/`//g;
PTDEBUG && _d( $name, 'key cols:', join(', ', map { "`$_`" } @cols));
$keys->{$name} = {
name => $name,
type => $type,
colnames => $cols,
cols => \@cols,
col_prefixes => \@col_prefixes,
is_unique => $unique,
is_nullable => scalar(grep { $is_nullable->{$_} } @cols),
is_col => { map { $_ => 1 } @cols },
ddl => $key_ddl,
};
if ( ($engine || '') =~ m/(InnoDB)|(TokuDB)|(RocksDB)/i && !$clustered_key ) {
my $this_key = $keys->{$name};
if ( $this_key->{name} eq 'PRIMARY' ) {
$clustered_key = 'PRIMARY';
}
elsif ( $this_key->{is_unique} && !$this_key->{is_nullable} ) {
$clustered_key = $this_key->{name};
}
PTDEBUG && $clustered_key && _d('This key is the clustered key');
}
}
return $keys, $clustered_key;
}
sub get_fks {
my ( $self, $ddl, $opts ) = @_;
my $q = $self->{Quoter};
my $fks = {};
foreach my $fk (
$ddl =~ m/CONSTRAINT .* FOREIGN KEY .* REFERENCES [^\)]*\)/mg )
{
my ( $name ) = $fk =~ m/CONSTRAINT `(.*?)`/;
my ( $cols ) = $fk =~ m/FOREIGN KEY \(([^\)]+)\)/;
my ( $parent, $parent_cols ) = $fk =~ m/REFERENCES (\S+) \(([^\)]+)\)/;
my ($db, $tbl) = $q->split_unquote($parent, $opts->{database});
my %parent_tbl = (tbl => $tbl);
$parent_tbl{db} = $db if $db;
if ( $parent !~ m/\./ && $opts->{database} ) {
$parent = $q->quote($opts->{database}) . ".$parent";
}
$fks->{$name} = {
name => $name,
colnames => $cols,
cols => [ map { s/[ `]+//g; $_; } split(',', $cols) ],
parent_tbl => \%parent_tbl,
parent_tblname => $parent,
parent_cols => [ map { s/[ `]+//g; $_; } split(',', $parent_cols) ],
parent_colnames=> $parent_cols,
ddl => $fk,
};
}
return $fks;
}
sub remove_auto_increment {
my ( $self, $ddl ) = @_;
$ddl =~ s/(^\).*?) AUTO_INCREMENT=\d+\b/$1/m;
return $ddl;
}
sub get_table_status {
my ( $self, $dbh, $db, $like ) = @_;
my $q = $self->{Quoter};
my $sql = "SHOW TABLE STATUS FROM " . $q->quote($db);
my @params;
if ( $like ) {
$sql .= ' LIKE ?';
push @params, $like;
}
PTDEBUG && _d($sql, @params);
my $sth = $dbh->prepare($sql);
eval { $sth->execute(@params); };
if ($EVAL_ERROR) {
PTDEBUG && _d($EVAL_ERROR);
return;
}
my @tables = @{$sth->fetchall_arrayref({})};
@tables = map {
my %tbl; # Make a copy with lowercased keys
@tbl{ map { lc $_ } keys %$_ } = values %$_;
$tbl{engine} ||= $tbl{type} || $tbl{comment};
delete $tbl{type};
\%tbl;
} @tables;
return @tables;
}
my $ansi_quote_re = qr/" [^"]* (?: "" [^"]* )* (?<=.) "/ismx;
sub ansi_to_legacy {
my ($self, $ddl) = @_;
$ddl =~ s/($ansi_quote_re)/ansi_quote_replace($1)/ge;
return $ddl;
}
sub ansi_quote_replace {
my ($val) = @_;
$val =~ s/^"|"$//g;
$val =~ s/`/``/g;
$val =~ s/""/"/g;
return "`$val`";
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End TableParser package
# ###########################################################################
# ###########################################################################
# Daemon package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/Daemon.pm
# t/lib/Daemon.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package Daemon;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use POSIX qw(setsid);
use Fcntl qw(:DEFAULT);
sub new {
my ($class, %args) = @_;
my $self = {
log_file => $args{log_file},
pid_file => $args{pid_file},
daemonize => $args{daemonize},
force_log_file => $args{force_log_file},
parent_exit => $args{parent_exit},
pid_file_owner => 0,
utf8 => $args{utf8} // 0,
};
return bless $self, $class;
}
sub run {
my ($self) = @_;
my $daemonize = $self->{daemonize};
my $pid_file = $self->{pid_file};
my $log_file = $self->{log_file};
my $force_log_file = $self->{force_log_file};
my $parent_exit = $self->{parent_exit};
my $utf8 = $self->{utf8};
PTDEBUG && _d('Starting daemon');
if ( $pid_file ) {
eval {
$self->_make_pid_file(
pid => $PID, # parent's pid
pid_file => $pid_file,
);
};
die "$EVAL_ERROR\n" if $EVAL_ERROR;
if ( !$daemonize ) {
$self->{pid_file_owner} = $PID; # parent's pid
}
}
if ( $daemonize ) {
defined (my $child_pid = fork()) or die "Cannot fork: $OS_ERROR";
if ( $child_pid ) {
PTDEBUG && _d('Forked child', $child_pid);
$parent_exit->($child_pid) if $parent_exit;
exit 0;
}
POSIX::setsid() or die "Cannot start a new session: $OS_ERROR";
chdir '/' or die "Cannot chdir to /: $OS_ERROR";
if ( $pid_file ) {
$self->_update_pid_file(
pid => $PID, # child's pid
pid_file => $pid_file,
);
$self->{pid_file_owner} = $PID;
}
}
if ( $daemonize || $force_log_file ) {
PTDEBUG && _d('Redirecting STDIN to /dev/null');
close STDIN;
open STDIN, '/dev/null'
or die "Cannot reopen STDIN to /dev/null: $OS_ERROR";
if ( $log_file ) {
PTDEBUG && _d('Redirecting STDOUT and STDERR to', $log_file);
close STDOUT;
open STDOUT, '>>', $log_file
or die "Cannot open log file $log_file: $OS_ERROR";
if ( $utf8 ) {
binmode(STDOUT, ':utf8')
or die "Can't binmode(STDOUT, ':utf8'): $OS_ERROR";
}
close STDERR;
open STDERR, ">&STDOUT"
or die "Cannot dupe STDERR to STDOUT: $OS_ERROR";
if ( $utf8 ) {
binmode(STDERR, ':utf8')
or die "Can't binmode(STDERR, ':utf8'): $OS_ERROR";
}
}
else {
if ( -t STDOUT ) {
PTDEBUG && _d('No log file and STDOUT is a terminal;',
'redirecting to /dev/null');
close STDOUT;
open STDOUT, '>', '/dev/null'
or die "Cannot reopen STDOUT to /dev/null: $OS_ERROR";
}
if ( -t STDERR ) {
PTDEBUG && _d('No log file and STDERR is a terminal;',
'redirecting to /dev/null');
close STDERR;
open STDERR, '>', '/dev/null'
or die "Cannot reopen STDERR to /dev/null: $OS_ERROR";
}
}
$OUTPUT_AUTOFLUSH = 1;
}
PTDEBUG && _d('Daemon running');
return;
}
sub _make_pid_file {
my ($self, %args) = @_;
my @required_args = qw(pid pid_file);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
};
my $pid = $args{pid};
my $pid_file = $args{pid_file};
eval {
sysopen(PID_FH, $pid_file, O_RDWR|O_CREAT|O_EXCL) or die $OS_ERROR;
print PID_FH $PID, "\n";
close PID_FH;
};
if ( my $e = $EVAL_ERROR ) {
if ( $e =~ m/file exists/i ) {
my $old_pid = $self->_check_pid_file(
pid_file => $pid_file,
pid => $PID,
);
if ( $old_pid ) {
warn "Overwriting PID file $pid_file because PID $old_pid "
. "is not running.\n";
}
$self->_update_pid_file(
pid => $PID,
pid_file => $pid_file
);
}
else {
die "Error creating PID file $pid_file: $e\n";
}
}
return;
}
sub _check_pid_file {
my ($self, %args) = @_;
my @required_args = qw(pid_file pid);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
};
my $pid_file = $args{pid_file};
my $pid = $args{pid};
PTDEBUG && _d('Checking if PID in', $pid_file, 'is running');
if ( ! -f $pid_file ) {
PTDEBUG && _d('PID file', $pid_file, 'does not exist');
return;
}
open my $fh, '<', $pid_file
or die "Error opening $pid_file: $OS_ERROR";
my $existing_pid = do { local $/; <$fh> };
chomp($existing_pid) if $existing_pid;
close $fh
or die "Error closing $pid_file: $OS_ERROR";
if ( $existing_pid ) {
if ( $existing_pid == $pid ) {
warn "The current PID $pid already holds the PID file $pid_file\n";
return;
}
else {
PTDEBUG && _d('Checking if PID', $existing_pid, 'is running');
my $pid_is_alive = kill 0, $existing_pid;
if ( $pid_is_alive ) {
die "PID file $pid_file exists and PID $existing_pid is running\n";
}
}
}
else {
die "PID file $pid_file exists but it is empty. Remove the file "
. "if the process is no longer running.\n";
}
return $existing_pid;
}
sub _update_pid_file {
my ($self, %args) = @_;
my @required_args = qw(pid pid_file);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
};
my $pid = $args{pid};
my $pid_file = $args{pid_file};
open my $fh, '>', $pid_file
or die "Cannot open $pid_file: $OS_ERROR";
print { $fh } $pid, "\n"
or die "Cannot print to $pid_file: $OS_ERROR";
close $fh
or warn "Cannot close $pid_file: $OS_ERROR";
return;
}
sub remove_pid_file {
my ($self, $pid_file) = @_;
$pid_file ||= $self->{pid_file};
if ( $pid_file && -f $pid_file ) {
unlink $self->{pid_file}
or warn "Cannot remove PID file $pid_file: $OS_ERROR";
PTDEBUG && _d('Removed PID file');
}
else {
PTDEBUG && _d('No PID to remove');
}
return;
}
sub DESTROY {
my ($self) = @_;
if ( $self->{pid_file_owner} == $PID ) {
$self->remove_pid_file();
}
return;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End Daemon package
# ###########################################################################
# ###########################################################################
# HTTP::Micro package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/HTTP/Micro.pm
# t/lib/HTTP/Micro.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package HTTP::Micro;
our $VERSION = '0.01';
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Carp ();
my @attributes;
BEGIN {
@attributes = qw(agent timeout);
no strict 'refs';
for my $accessor ( @attributes ) {
*{$accessor} = sub {
@_ > 1 ? $_[0]->{$accessor} = $_[1] : $_[0]->{$accessor};
};
}
}
sub new {
my($class, %args) = @_;
(my $agent = $class) =~ s{::}{-}g;
my $self = {
agent => $agent . "/" . ($class->VERSION || 0),
timeout => 60,
};
for my $key ( @attributes ) {
$self->{$key} = $args{$key} if exists $args{$key}
}
return bless $self, $class;
}
my %DefaultPort = (
http => 80,
https => 443,
);
sub request {
my ($self, $method, $url, $args) = @_;
@_ == 3 || (@_ == 4 && ref $args eq 'HASH')
or Carp::croak(q/Usage: $http->request(METHOD, URL, [HASHREF])/);
$args ||= {}; # we keep some state in this during _request
my $response;
for ( 0 .. 1 ) {
$response = eval { $self->_request($method, $url, $args) };
last unless $@ && $method eq 'GET'
&& $@ =~ m{^(?:Socket closed|Unexpected end)};
}
if (my $e = "$@") {
$response = {
success => q{},
status => 599,
reason => 'Internal Exception',
content => $e,
headers => {
'content-type' => 'text/plain',
'content-length' => length $e,
}
};
}
return $response;
}
sub _request {
my ($self, $method, $url, $args) = @_;
my ($scheme, $host, $port, $path_query) = $self->_split_url($url);
my $request = {
method => $method,
scheme => $scheme,
host_port => ($port == $DefaultPort{$scheme} ? $host : "$host:$port"),
uri => $path_query,
headers => {},
};
my $handle = HTTP::Micro::Handle->new(timeout => $self->{timeout});
$handle->connect($scheme, $host, $port);
$self->_prepare_headers_and_cb($request, $args);
$handle->write_request_header(@{$request}{qw/method uri headers/});
$handle->write_content_body($request) if $request->{content};
my $response;
do { $response = $handle->read_response_header }
until (substr($response->{status},0,1) ne '1');
if (!($method eq 'HEAD' || $response->{status} =~ /^[23]04/)) {
$response->{content} = '';
$handle->read_content_body(sub { $_[1]->{content} .= $_[0] }, $response);
}
$handle->close;
$response->{success} = substr($response->{status},0,1) eq '2';
return $response;
}
sub _prepare_headers_and_cb {
my ($self, $request, $args) = @_;
for ($args->{headers}) {
next unless defined;
while (my ($k, $v) = each %$_) {
$request->{headers}{lc $k} = $v;
}
}
$request->{headers}{'host'} = $request->{host_port};
$request->{headers}{'connection'} = "close";
$request->{headers}{'user-agent'} ||= $self->{agent};
if (defined $args->{content}) {
$request->{headers}{'content-type'} ||= "application/octet-stream";
utf8::downgrade($args->{content}, 1)
or Carp::croak(q/Wide character in request message body/);
$request->{headers}{'content-length'} = length $args->{content};
$request->{content} = $args->{content};
}
return;
}
sub _split_url {
my $url = pop;
my ($scheme, $authority, $path_query) = $url =~ m<\A([^:/?#]+)://([^/?#]*)([^#]*)>
or Carp::croak(qq/Cannot parse URL: '$url'/);
$scheme = lc $scheme;
$path_query = "/$path_query" unless $path_query =~ m<\A/>;
my $host = (length($authority)) ? lc $authority : 'localhost';
$host =~ s/\A[^@]*@//; # userinfo
my $port = do {
$host =~ s/:([0-9]*)\z// && length $1
? $1
: $DefaultPort{$scheme}
};
return ($scheme, $host, $port, $path_query);
}
} # HTTP::Micro
{
package HTTP::Micro::Handle;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Carp qw(croak);
use Errno qw(EINTR EPIPE);
use IO::Socket qw(SOCK_STREAM);
sub BUFSIZE () { 32768 }
my $Printable = sub {
local $_ = shift;
s/\r/\\r/g;
s/\n/\\n/g;
s/\t/\\t/g;
s/([^\x20-\x7E])/sprintf('\\x%.2X', ord($1))/ge;
$_;
};
sub new {
my ($class, %args) = @_;
return bless {
rbuf => '',
timeout => 60,
max_line_size => 16384,
%args
}, $class;
}
my $ssl_verify_args = {
check_cn => "when_only",
wildcards_in_alt => "anywhere",
wildcards_in_cn => "anywhere"
};
sub connect {
@_ == 4 || croak(q/Usage: $handle->connect(scheme, host, port)/);
my ($self, $scheme, $host, $port) = @_;
if ( $scheme eq 'https' ) {
eval "require IO::Socket::SSL"
unless exists $INC{'IO/Socket/SSL.pm'};
croak(qq/IO::Socket::SSL must be installed for https support\n/)
unless $INC{'IO/Socket/SSL.pm'};
}
elsif ( $scheme ne 'http' ) {
croak(qq/Unsupported URL scheme '$scheme'\n/);
}
$self->{fh} = IO::Socket::INET->new(
PeerHost => $host,
PeerPort => $port,
Proto => 'tcp',
Type => SOCK_STREAM,
Timeout => $self->{timeout}
) or croak(qq/Could not connect to '$host:$port': $@/);
binmode($self->{fh})
or croak(qq/Could not binmode() socket: '$!'/);
if ( $scheme eq 'https') {
IO::Socket::SSL->start_SSL(
$self->{fh},
SSL_verifycn_name => $host,
);
ref($self->{fh}) eq 'IO::Socket::SSL'
or die(qq/SSL connection failed for $host\n/);
if ( $self->{fh}->can("verify_hostname") ) {
$self->{fh}->verify_hostname( $host, $ssl_verify_args )
or die(qq/SSL certificate not valid for $host\n/);
}
else {
my $fh = $self->{fh};
_verify_hostname_of_cert($host, _peer_certificate($fh), $ssl_verify_args)
or die(qq/SSL certificate not valid for $host\n/);
}
}
$self->{host} = $host;
$self->{port} = $port;
return $self;
}
sub close {
@_ == 1 || croak(q/Usage: $handle->close()/);
my ($self) = @_;
CORE::close($self->{fh})
or croak(qq/Could not close socket: '$!'/);
}
sub write {
@_ == 2 || croak(q/Usage: $handle->write(buf)/);
my ($self, $buf) = @_;
my $len = length $buf;
my $off = 0;
local $SIG{PIPE} = 'IGNORE';
while () {
$self->can_write
or croak(q/Timed out while waiting for socket to become ready for writing/);
my $r = syswrite($self->{fh}, $buf, $len, $off);
if (defined $r) {
$len -= $r;
$off += $r;
last unless $len > 0;
}
elsif ($! == EPIPE) {
croak(qq/Socket closed by remote server: $!/);
}
elsif ($! != EINTR) {
croak(qq/Could not write to socket: '$!'/);
}
}
return $off;
}
sub read {
@_ == 2 || @_ == 3 || croak(q/Usage: $handle->read(len)/);
my ($self, $len) = @_;
my $buf = '';
my $got = length $self->{rbuf};
if ($got) {
my $take = ($got < $len) ? $got : $len;
$buf = substr($self->{rbuf}, 0, $take, '');
$len -= $take;
}
while ($len > 0) {
$self->can_read
or croak(q/Timed out while waiting for socket to become ready for reading/);
my $r = sysread($self->{fh}, $buf, $len, length $buf);
if (defined $r) {
last unless $r;
$len -= $r;
}
elsif ($! != EINTR) {
croak(qq/Could not read from socket: '$!'/);
}
}
if ($len) {
croak(q/Unexpected end of stream/);
}
return $buf;
}
sub readline {
@_ == 1 || croak(q/Usage: $handle->readline()/);
my ($self) = @_;
while () {
if ($self->{rbuf} =~ s/\A ([^\x0D\x0A]* \x0D?\x0A)//x) {
return $1;
}
$self->can_read
or croak(q/Timed out while waiting for socket to become ready for reading/);
my $r = sysread($self->{fh}, $self->{rbuf}, BUFSIZE, length $self->{rbuf});
if (defined $r) {
last unless $r;
}
elsif ($! != EINTR) {
croak(qq/Could not read from socket: '$!'/);
}
}
croak(q/Unexpected end of stream while looking for line/);
}
sub read_header_lines {
@_ == 1 || @_ == 2 || croak(q/Usage: $handle->read_header_lines([headers])/);
my ($self, $headers) = @_;
$headers ||= {};
my $lines = 0;
my $val;
while () {
my $line = $self->readline;
if ($line =~ /\A ([^\x00-\x1F\x7F:]+) : [\x09\x20]* ([^\x0D\x0A]*)/x) {
my ($field_name) = lc $1;
$val = \($headers->{$field_name} = $2);
}
elsif ($line =~ /\A [\x09\x20]+ ([^\x0D\x0A]*)/x) {
$val
or croak(q/Unexpected header continuation line/);
next unless length $1;
$$val .= ' ' if length $$val;
$$val .= $1;
}
elsif ($line =~ /\A \x0D?\x0A \z/x) {
last;
}
else {
croak(q/Malformed header line: / . $Printable->($line));
}
}
return $headers;
}
sub write_header_lines {
(@_ == 2 && ref $_[1] eq 'HASH') || croak(q/Usage: $handle->write_header_lines(headers)/);
my($self, $headers) = @_;
my $buf = '';
while (my ($k, $v) = each %$headers) {
my $field_name = lc $k;
$field_name =~ /\A [\x21\x23-\x27\x2A\x2B\x2D\x2E\x30-\x39\x41-\x5A\x5E-\x7A\x7C\x7E]+ \z/x
or croak(q/Invalid HTTP header field name: / . $Printable->($field_name));
$field_name =~ s/\b(\w)/\u$1/g;
$buf .= "$field_name: $v\x0D\x0A";
}
$buf .= "\x0D\x0A";
return $self->write($buf);
}
sub read_content_body {
@_ == 3 || @_ == 4 || croak(q/Usage: $handle->read_content_body(callback, response, [read_length])/);
my ($self, $cb, $response, $len) = @_;
$len ||= $response->{headers}{'content-length'};
croak("No content-length in the returned response, and this "
. "UA doesn't implement chunking") unless defined $len;
while ($len > 0) {
my $read = ($len > BUFSIZE) ? BUFSIZE : $len;
$cb->($self->read($read), $response);
$len -= $read;
}
return;
}
sub write_content_body {
@_ == 2 || croak(q/Usage: $handle->write_content_body(request)/);
my ($self, $request) = @_;
my ($len, $content_length) = (0, $request->{headers}{'content-length'});
$len += $self->write($request->{content});
$len == $content_length
or croak(qq/Content-Length mismatch (got: $len expected: $content_length)/);
return $len;
}
sub read_response_header {
@_ == 1 || croak(q/Usage: $handle->read_response_header()/);
my ($self) = @_;
my $line = $self->readline;
$line =~ /\A (HTTP\/(0*\d+\.0*\d+)) [\x09\x20]+ ([0-9]{3}) [\x09\x20]+ ([^\x0D\x0A]*) \x0D?\x0A/x
or croak(q/Malformed Status-Line: / . $Printable->($line));
my ($protocol, $version, $status, $reason) = ($1, $2, $3, $4);
return {
status => $status,
reason => $reason,
headers => $self->read_header_lines,
protocol => $protocol,
};
}
sub write_request_header {
@_ == 4 || croak(q/Usage: $handle->write_request_header(method, request_uri, headers)/);
my ($self, $method, $request_uri, $headers) = @_;
return $self->write("$method $request_uri HTTP/1.1\x0D\x0A")
+ $self->write_header_lines($headers);
}
sub _do_timeout {
my ($self, $type, $timeout) = @_;
$timeout = $self->{timeout}
unless defined $timeout && $timeout >= 0;
my $fd = fileno $self->{fh};
defined $fd && $fd >= 0
or croak(q/select(2): 'Bad file descriptor'/);
my $initial = time;
my $pending = $timeout;
my $nfound;
vec(my $fdset = '', $fd, 1) = 1;
while () {
$nfound = ($type eq 'read')
? select($fdset, undef, undef, $pending)
: select(undef, $fdset, undef, $pending) ;
if ($nfound == -1) {
$! == EINTR
or croak(qq/select(2): '$!'/);
redo if !$timeout || ($pending = $timeout - (time - $initial)) > 0;
$nfound = 0;
}
last;
}
$! = 0;
return $nfound;
}
sub can_read {
@_ == 1 || @_ == 2 || croak(q/Usage: $handle->can_read([timeout])/);
my $self = shift;
return $self->_do_timeout('read', @_)
}
sub can_write {
@_ == 1 || @_ == 2 || croak(q/Usage: $handle->can_write([timeout])/);
my $self = shift;
return $self->_do_timeout('write', @_)
}
} # HTTP::Micro::Handle
my $prog = <<'EOP';
BEGIN {
if ( defined &IO::Socket::SSL::CAN_IPV6 ) {
*CAN_IPV6 = \*IO::Socket::SSL::CAN_IPV6;
}
else {
constant->import( CAN_IPV6 => '' );
}
my %const = (
NID_CommonName => 13,
GEN_DNS => 2,
GEN_IPADD => 7,
);
while ( my ($name,$value) = each %const ) {
no strict 'refs';
*{$name} = UNIVERSAL::can( 'Net::SSLeay', $name ) || sub { $value };
}
}
{
use Carp qw(croak);
my %dispatcher = (
issuer => sub { Net::SSLeay::X509_NAME_oneline( Net::SSLeay::X509_get_issuer_name( shift )) },
subject => sub { Net::SSLeay::X509_NAME_oneline( Net::SSLeay::X509_get_subject_name( shift )) },
);
if ( $Net::SSLeay::VERSION >= 1.30 ) {
$dispatcher{commonName} = sub {
my $cn = Net::SSLeay::X509_NAME_get_text_by_NID(
Net::SSLeay::X509_get_subject_name( shift ), NID_CommonName);
$cn =~s{\0$}{}; # work around Bug in Net::SSLeay <1.33
$cn;
}
} else {
$dispatcher{commonName} = sub {
croak "you need at least Net::SSLeay version 1.30 for getting commonName"
}
}
if ( $Net::SSLeay::VERSION >= 1.33 ) {
$dispatcher{subjectAltNames} = sub { Net::SSLeay::X509_get_subjectAltNames( shift ) };
} else {
$dispatcher{subjectAltNames} = sub {
return;
};
}
$dispatcher{authority} = $dispatcher{issuer};
$dispatcher{owner} = $dispatcher{subject};
$dispatcher{cn} = $dispatcher{commonName};
sub _peer_certificate {
my ($self, $field) = @_;
my $ssl = $self->_get_ssl_object or return;
my $cert = ${*$self}{_SSL_certificate}
||= Net::SSLeay::get_peer_certificate($ssl)
or return $self->error("Could not retrieve peer certificate");
if ($field) {
my $sub = $dispatcher{$field} or croak
"invalid argument for peer_certificate, valid are: ".join( " ",keys %dispatcher ).
"\nMaybe you need to upgrade your Net::SSLeay";
return $sub->($cert);
} else {
return $cert
}
}
my %scheme = (
ldap => {
wildcards_in_cn => 0,
wildcards_in_alt => 'leftmost',
check_cn => 'always',
},
http => {
wildcards_in_cn => 'anywhere',
wildcards_in_alt => 'anywhere',
check_cn => 'when_only',
},
smtp => {
wildcards_in_cn => 0,
wildcards_in_alt => 0,
check_cn => 'always'
},
none => {}, # do not check
);
$scheme{www} = $scheme{http}; # alias
$scheme{xmpp} = $scheme{http}; # rfc 3920
$scheme{pop3} = $scheme{ldap}; # rfc 2595
$scheme{imap} = $scheme{ldap}; # rfc 2595
$scheme{acap} = $scheme{ldap}; # rfc 2595
$scheme{nntp} = $scheme{ldap}; # rfc 4642
$scheme{ftp} = $scheme{http}; # rfc 4217
sub _verify_hostname_of_cert {
my $identity = shift;
my $cert = shift;
my $scheme = shift || 'none';
if ( ! ref($scheme) ) {
$scheme = $scheme{$scheme} or croak "scheme $scheme not defined";
}
return 1 if ! %$scheme; # 'none'
my $commonName = $dispatcher{cn}->($cert);
my @altNames = $dispatcher{subjectAltNames}->($cert);
if ( my $sub = $scheme->{callback} ) {
return $sub->($identity,$commonName,@altNames);
}
my $ipn;
if ( CAN_IPV6 and $identity =~m{:} ) {
$ipn = IO::Socket::SSL::inet_pton(IO::Socket::SSL::AF_INET6,$identity)
or croak "'$identity' is not IPv6, but neither IPv4 nor hostname";
} elsif ( $identity =~m{^\d+\.\d+\.\d+\.\d+$} ) {
$ipn = IO::Socket::SSL::inet_aton( $identity ) or croak "'$identity' is not IPv4, but neither IPv6 nor hostname";
} else {
if ( $identity =~m{[^a-zA-Z0-9_.\-]} ) {
$identity =~m{\0} and croak("name '$identity' has \\0 byte");
$identity = IO::Socket::SSL::idn_to_ascii($identity) or
croak "Warning: Given name '$identity' could not be converted to IDNA!";
}
}
my $check_name = sub {
my ($name,$identity,$wtyp) = @_;
$wtyp ||= '';
my $pattern;
if ( $wtyp eq 'anywhere' and $name =~m{^([a-zA-Z0-9_\-]*)\*(.+)} ) {
$pattern = qr{^\Q$1\E[a-zA-Z0-9_\-]*\Q$2\E$}i;
} elsif ( $wtyp eq 'leftmost' and $name =~m{^\*(\..+)$} ) {
$pattern = qr{^[a-zA-Z0-9_\-]*\Q$1\E$}i;
} else {
$pattern = qr{^\Q$name\E$}i;
}
return $identity =~ $pattern;
};
my $alt_dnsNames = 0;
while (@altNames) {
my ($type, $name) = splice (@altNames, 0, 2);
if ( $ipn and $type == GEN_IPADD ) {
return 1 if $ipn eq $name;
} elsif ( ! $ipn and $type == GEN_DNS ) {
$name =~s/\s+$//; $name =~s/^\s+//;
$alt_dnsNames++;
$check_name->($name,$identity,$scheme->{wildcards_in_alt})
and return 1;
}
}
if ( ! $ipn and (
$scheme->{check_cn} eq 'always' or
$scheme->{check_cn} eq 'when_only' and !$alt_dnsNames)) {
$check_name->($commonName,$identity,$scheme->{wildcards_in_cn})
and return 1;
}
return 0; # no match
}
}
EOP
eval { require IO::Socket::SSL };
if ( $INC{"IO/Socket/SSL.pm"} ) {
eval $prog;
die $@ if $@;
}
1;
# ###########################################################################
# End HTTP::Micro package
# ###########################################################################
# ###########################################################################
# VersionCheck package
# This package is a copy without comments from the original. The original
# with comments and its test file can be found in the GitHub repository at,
# lib/VersionCheck.pm
# t/lib/VersionCheck.t
# See https://github.com/percona/percona-toolkit for more information.
# ###########################################################################
{
package VersionCheck;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Data::Dumper;
local $Data::Dumper::Indent = 1;
local $Data::Dumper::Sortkeys = 1;
local $Data::Dumper::Quotekeys = 0;
use Digest::MD5 qw(md5_hex);
use Sys::Hostname qw(hostname);
use File::Basename qw();
use File::Spec;
use FindBin qw();
eval {
require Percona::Toolkit;
require HTTP::Micro;
};
my $home = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
my @vc_dirs = (
'/etc/percona',
'/etc/percona-toolkit',
'/tmp',
"$home",
);
{
my $file = 'percona-version-check';
sub version_check_file {
foreach my $dir ( @vc_dirs ) {
if ( -d $dir && -w $dir ) {
PTDEBUG && _d('Version check file', $file, 'in', $dir);
return $dir . '/' . $file;
}
}
PTDEBUG && _d('Version check file', $file, 'in', $ENV{PWD});
return $file; # in the CWD
}
}
sub version_check_time_limit {
return 60 * 60 * 24; # one day
}
sub version_check {
my (%args) = @_;
my $instances = $args{instances} || [];
my $instances_to_check;
PTDEBUG && _d('FindBin::Bin:', $FindBin::Bin);
if ( !$args{force} ) {
if ( $FindBin::Bin
&& (-d "$FindBin::Bin/../.bzr" ||
-d "$FindBin::Bin/../../.bzr" ||
-d "$FindBin::Bin/../.git" ||
-d "$FindBin::Bin/../../.git"
)
) {
PTDEBUG && _d("$FindBin::Bin/../.bzr disables --version-check");
return;
}
}
eval {
foreach my $instance ( @$instances ) {
my ($name, $id) = get_instance_id($instance);
$instance->{name} = $name;
$instance->{id} = $id;
}
push @$instances, { name => 'system', id => 0 };
$instances_to_check = get_instances_to_check(
instances => $instances,
vc_file => $args{vc_file}, # testing
now => $args{now}, # testing
);
PTDEBUG && _d(scalar @$instances_to_check, 'instances to check');
return unless @$instances_to_check;
my $protocol = 'https';
eval { require IO::Socket::SSL; };
if ( $EVAL_ERROR ) {
PTDEBUG && _d($EVAL_ERROR);
PTDEBUG && _d("SSL not available, won't run version_check");
return;
}
PTDEBUG && _d('Using', $protocol);
my $url = $args{url} # testing
|| $ENV{PERCONA_VERSION_CHECK_URL} # testing
|| "$protocol://v.percona.com";
PTDEBUG && _d('API URL:', $url);
my $advice = pingback(
instances => $instances_to_check,
protocol => $protocol,
url => $url,
);
if ( $advice ) {
PTDEBUG && _d('Advice:', Dumper($advice));
if ( scalar @$advice > 1) {
print "\n# " . scalar @$advice . " software updates are "
. "available:\n";
}
else {
print "\n# A software update is available:\n";
}
print join("\n", map { "# * $_" } @$advice), "\n\n";
}
};
if ( $EVAL_ERROR ) {
PTDEBUG && _d('Version check failed:', $EVAL_ERROR);
}
if ( $instances_to_check and @$instances_to_check ) {
eval {
update_check_times(
instances => $instances_to_check,
vc_file => $args{vc_file}, # testing
now => $args{now}, # testing
);
};
if ( $EVAL_ERROR ) {
PTDEBUG && _d('Error updating version check file:', $EVAL_ERROR);
}
}
if ( $ENV{PTDEBUG_VERSION_CHECK} ) {
warn "Exiting because the PTDEBUG_VERSION_CHECK "
. "environment variable is defined.\n";
exit 255;
}
return;
}
sub get_instances_to_check {
my (%args) = @_;
my $instances = $args{instances};
my $now = $args{now} || int(time);
my $vc_file = $args{vc_file} || version_check_file();
if ( !-f $vc_file ) {
PTDEBUG && _d('Version check file', $vc_file, 'does not exist;',
'version checking all instances');
return $instances;
}
open my $fh, '<', $vc_file or die "Cannot open $vc_file: $OS_ERROR";
chomp(my $file_contents = do { local $/ = undef; <$fh> });
PTDEBUG && _d('Version check file', $vc_file, 'contents:', $file_contents);
close $fh;
my %last_check_time_for = $file_contents =~ /^([^,]+),(.+)$/mg;
my $check_time_limit = version_check_time_limit();
my @instances_to_check;
foreach my $instance ( @$instances ) {
my $last_check_time = $last_check_time_for{ $instance->{id} };
PTDEBUG && _d('Instance', $instance->{id}, 'last checked',
$last_check_time, 'now', $now, 'diff', $now - ($last_check_time || 0),
'hours until next check',
sprintf '%.2f',
($check_time_limit - ($now - ($last_check_time || 0))) / 3600);
if ( !defined $last_check_time
|| ($now - $last_check_time) >= $check_time_limit ) {
PTDEBUG && _d('Time to check', Dumper($instance));
push @instances_to_check, $instance;
}
}
return \@instances_to_check;
}
sub update_check_times {
my (%args) = @_;
my $instances = $args{instances};
my $now = $args{now} || int(time);
my $vc_file = $args{vc_file} || version_check_file();
PTDEBUG && _d('Updating last check time:', $now);
my %all_instances = map {
$_->{id} => { name => $_->{name}, ts => $now }
} @$instances;
if ( -f $vc_file ) {
open my $fh, '<', $vc_file or die "Cannot read $vc_file: $OS_ERROR";
my $contents = do { local $/ = undef; <$fh> };
close $fh;
foreach my $line ( split("\n", ($contents || '')) ) {
my ($id, $ts) = split(',', $line);
if ( !exists $all_instances{$id} ) {
$all_instances{$id} = { ts => $ts }; # original ts, not updated
}
}
}
open my $fh, '>', $vc_file or die "Cannot write to $vc_file: $OS_ERROR";
foreach my $id ( sort keys %all_instances ) {
PTDEBUG && _d('Updated:', $id, Dumper($all_instances{$id}));
print { $fh } $id . ',' . $all_instances{$id}->{ts} . "\n";
}
close $fh;
return;
}
sub get_instance_id {
my ($instance) = @_;
my $dbh = $instance->{dbh};
my $dsn = $instance->{dsn};
my $sql = q{SELECT CONCAT(@@hostname, @@port)};
PTDEBUG && _d($sql);
my ($name) = eval { $dbh->selectrow_array($sql) };
if ( $EVAL_ERROR ) {
PTDEBUG && _d($EVAL_ERROR);
$sql = q{SELECT @@hostname};
PTDEBUG && _d($sql);
($name) = eval { $dbh->selectrow_array($sql) };
if ( $EVAL_ERROR ) {
PTDEBUG && _d($EVAL_ERROR);
$name = ($dsn->{h} || 'localhost') . ($dsn->{P} || 3306);
}
else {
$sql = q{SHOW VARIABLES LIKE 'port'};
PTDEBUG && _d($sql);
my (undef, $port) = eval { $dbh->selectrow_array($sql) };
PTDEBUG && _d('port:', $port);
$name .= $port || '';
}
}
my $id = md5_hex($name);
PTDEBUG && _d('MySQL instance:', $id, $name, Dumper($dsn));
return $name, $id;
}
sub get_uuid {
my $uuid_file = '/.percona-toolkit.uuid';
foreach my $dir (@vc_dirs) {
my $filename = $dir.$uuid_file;
my $uuid=_read_uuid($filename);
return $uuid if $uuid;
}
my $filename = $ENV{"HOME"} . $uuid_file;
my $uuid = _generate_uuid();
my $fh;
eval {
open($fh, '>', $filename);
};
if (!$EVAL_ERROR) {
print $fh $uuid;
close $fh;
}
return $uuid;
}
sub _generate_uuid {
return sprintf+($}="%04x")."$}-$}-$}-$}-".$}x3,map rand 65537,0..7;
}
sub _read_uuid {
my $filename = shift;
my $fh;
eval {
open($fh, '<:encoding(UTF-8)', $filename);
};
return if ($EVAL_ERROR);
my $uuid;
eval { $uuid = <$fh>; };
return if ($EVAL_ERROR);
chomp $uuid;
return $uuid;
}
sub pingback {
my (%args) = @_;
my @required_args = qw(url instances);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my $url = $args{url};
my $instances = $args{instances};
my $ua = $args{ua} || HTTP::Micro->new( timeout => 3 );
my $response = $ua->request('GET', $url);
PTDEBUG && _d('Server response:', Dumper($response));
die "No response from GET $url"
if !$response;
die("GET on $url returned HTTP status $response->{status}; expected 200\n",
($response->{content} || '')) if $response->{status} != 200;
die("GET on $url did not return any programs to check")
if !$response->{content};
my $items = parse_server_response(
response => $response->{content}
);
die "Failed to parse server requested programs: $response->{content}"
if !scalar keys %$items;
my $versions = get_versions(
items => $items,
instances => $instances,
);
die "Failed to get any program versions; should have at least gotten Perl"
if !scalar keys %$versions;
my $client_content = encode_client_response(
items => $items,
versions => $versions,
general_id => get_uuid(),
);
my $tool_name = $ENV{XTRABACKUP_VERSION} ? "Percona XtraBackup" : File::Basename::basename($0);
my $client_response = {
headers => { "X-Percona-Toolkit-Tool" => $tool_name },
content => $client_content,
};
PTDEBUG && _d('Client response:', Dumper($client_response));
$response = $ua->request('POST', $url, $client_response);
PTDEBUG && _d('Server suggestions:', Dumper($response));
die "No response from POST $url $client_response"
if !$response;
die "POST $url returned HTTP status $response->{status}; expected 200"
if $response->{status} != 200;
return unless $response->{content};
$items = parse_server_response(
response => $response->{content},
split_vars => 0,
);
die "Failed to parse server suggestions: $response->{content}"
if !scalar keys %$items;
my @suggestions = map { $_->{vars} }
sort { $a->{item} cmp $b->{item} }
values %$items;
return \@suggestions;
}
sub encode_client_response {
my (%args) = @_;
my @required_args = qw(items versions general_id);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($items, $versions, $general_id) = @args{@required_args};
my @lines;
foreach my $item ( sort keys %$items ) {
next unless exists $versions->{$item};
if ( ref($versions->{$item}) eq 'HASH' ) {
my $mysql_versions = $versions->{$item};
for my $id ( sort keys %$mysql_versions ) {
push @lines, join(';', $id, $item, $mysql_versions->{$id});
}
}
else {
push @lines, join(';', $general_id, $item, $versions->{$item});
}
}
my $client_response = join("\n", @lines) . "\n";
return $client_response;
}
sub parse_server_response {
my (%args) = @_;
my @required_args = qw(response);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($response) = @args{@required_args};
my %items = map {
my ($item, $type, $vars) = split(";", $_);
if ( !defined $args{split_vars} || $args{split_vars} ) {
$vars = [ split(",", ($vars || '')) ];
}
$item => {
item => $item,
type => $type,
vars => $vars,
};
} split("\n", $response);
PTDEBUG && _d('Items:', Dumper(\%items));
return \%items;
}
my %sub_for_type = (
os_version => \&get_os_version,
perl_version => \&get_perl_version,
perl_module_version => \&get_perl_module_version,
mysql_variable => \&get_mysql_variable,
xtrabackup => \&get_xtrabackup_version,
);
sub valid_item {
my ($item) = @_;
return unless $item;
if ( !exists $sub_for_type{ $item->{type} } ) {
PTDEBUG && _d('Invalid type:', $item->{type});
return 0;
}
return 1;
}
sub get_versions {
my (%args) = @_;
my @required_args = qw(items);
foreach my $arg ( @required_args ) {
die "I need a $arg argument" unless $args{$arg};
}
my ($items) = @args{@required_args};
my %versions;
foreach my $item ( values %$items ) {
next unless valid_item($item);
eval {
my $version = $sub_for_type{ $item->{type} }->(
item => $item,
instances => $args{instances},
);
if ( $version ) {
chomp $version unless ref($version);
$versions{$item->{item}} = $version;
}
};
if ( $EVAL_ERROR ) {
PTDEBUG && _d('Error getting version for', Dumper($item), $EVAL_ERROR);
}
}
return \%versions;
}
sub get_os_version {
if ( $OSNAME eq 'MSWin32' ) {
require Win32;
return Win32::GetOSDisplayName();
}
chomp(my $platform = `uname -s`);
PTDEBUG && _d('platform:', $platform);
return $OSNAME unless $platform;
chomp(my $lsb_release
= `which lsb_release 2>/dev/null | awk '{print \$1}'` || '');
PTDEBUG && _d('lsb_release:', $lsb_release);
my $release = "";
if ( $platform eq 'Linux' ) {
if ( -f "/etc/fedora-release" ) {
$release = `cat /etc/fedora-release`;
}
elsif ( -f "/etc/redhat-release" ) {
$release = `cat /etc/redhat-release`;
}
elsif ( -f "/etc/system-release" ) {
$release = `cat /etc/system-release`;
}
elsif ( $lsb_release ) {
$release = `$lsb_release -ds`;
}
elsif ( -f "/etc/lsb-release" ) {
$release = `grep DISTRIB_DESCRIPTION /etc/lsb-release`;
$release =~ s/^\w+="([^"]+)".+/$1/;
}
elsif ( -f "/etc/debian_version" ) {
chomp(my $rel = `cat /etc/debian_version`);
$release = "Debian $rel";
if ( -f "/etc/apt/sources.list" ) {
chomp(my $code_name = `awk '/^deb/ {print \$3}' /etc/apt/sources.list | awk -F/ '{print \$1}'| awk 'BEGIN {FS="|"} {print \$1}' | sort | uniq -c | sort -rn | head -n1 | awk '{print \$2}'`);
$release .= " ($code_name)" if $code_name;
}
}
elsif ( -f "/etc/os-release" ) { # openSUSE
chomp($release = `grep PRETTY_NAME /etc/os-release`);
$release =~ s/^PRETTY_NAME="(.+)"$/$1/;
}
elsif ( `ls /etc/*release 2>/dev/null` ) {
if ( `grep DISTRIB_DESCRIPTION /etc/*release 2>/dev/null` ) {
$release = `grep DISTRIB_DESCRIPTION /etc/*release | head -n1`;
}
else {
$release = `cat /etc/*release | head -n1`;
}
}
}
elsif ( $platform =~ m/(?:BSD|^Darwin)$/ ) {
my $rel = `uname -r`;
$release = "$platform $rel";
}
elsif ( $platform eq "SunOS" ) {
my $rel = `head -n1 /etc/release` || `uname -r`;
$release = "$platform $rel";
}
if ( !$release ) {
PTDEBUG && _d('Failed to get the release, using platform');
$release = $platform;
}
chomp($release);
$release =~ s/^"|"$//g;
PTDEBUG && _d('OS version =', $release);
return $release;
}
sub get_perl_version {
my (%args) = @_;
my $item = $args{item};
return unless $item;
my $version = sprintf '%vd', $PERL_VERSION;
PTDEBUG && _d('Perl version', $version);
return $version;
}
sub get_xtrabackup_version {
return $ENV{XTRABACKUP_VERSION};
}
sub get_perl_module_version {
my (%args) = @_;
my $item = $args{item};
return unless $item;
my $var = '$' . $item->{item} . '::VERSION';
my $version = eval "use $item->{item}; $var;";
PTDEBUG && _d('Perl version for', $var, '=', $version);
return $version;
}
sub get_mysql_variable {
return get_from_mysql(
show => 'VARIABLES',
@_,
);
}
sub get_from_mysql {
my (%args) = @_;
my $show = $args{show};
my $item = $args{item};
my $instances = $args{instances};
return unless $show && $item;
if ( !$instances || !@$instances ) {
PTDEBUG && _d('Cannot check', $item,
'because there are no MySQL instances');
return;
}
if ($item->{item} eq 'MySQL' && $item->{type} eq 'mysql_variable') {
@{$item->{vars}} = grep { $_ eq 'version' || $_ eq 'version_comment' } @{$item->{vars}};
}
my @versions;
my %version_for;
foreach my $instance ( @$instances ) {
next unless $instance->{id}; # special system instance has id=0
my $dbh = $instance->{dbh};
local $dbh->{FetchHashKeyName} = 'NAME_lc';
my $sql = qq/SHOW $show/;
PTDEBUG && _d($sql);
my $rows = $dbh->selectall_hashref($sql, 'variable_name');
my @versions;
foreach my $var ( @{$item->{vars}} ) {
$var = lc($var);
my $version = $rows->{$var}->{value};
PTDEBUG && _d('MySQL version for', $item->{item}, '=', $version,
'on', $instance->{name});
push @versions, $version;
}
$version_for{ $instance->{id} } = join(' ', @versions);
}
return \%version_for;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
1;
}
# ###########################################################################
# End VersionCheck package
# ###########################################################################
# ###########################################################################
# This is a combination of modules and programs in one -- a runnable module.
# http://www.perl.com/pub/a/2006/07/13/lightning-articles.html?page=last
# Or, look it up in the Camel book on pages 642 and 643 in the 3rd edition.
#
# Check at the end of this package for the call to main() which actually runs
# the program.
# ###########################################################################
package pt_find;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use Percona::Toolkit;
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
$OUTPUT_AUTOFLUSH = 1;
# ############################################################################
# Lookup tables and global variables
# ############################################################################
my $o; # OptionParser obj
my %fmt_for; # Interpolated strings
my %time_for; # Holds time constants for mmin, mtime etc
my %connections; # Holds a list of thread IDs connected
my $server_id; # Holds the server's @@SERVER_ID
my $dbh; # This program's $dbh
my $exec_dbh; # The $dbh to use for exec and exec-plus
my $tp;
# Functions to call while evaluating tests.
my %test_for = (
autoinc => sub {
my ( $table ) = @_;
return test_number($table, 'Auto_increment', $o->get('autoinc'));
},
avgrowlen => sub {
my ( $table ) = @_;
return test_number($table, 'Avg_row_length', $o->get('avgrowlen'));
},
checksum => sub {
my ( $table ) = @_;
return test_number($table, 'Checksum', $o->get('checksum'));
},
cmin => sub {
my ( $table ) = @_;
return test_date($table, 'Create_time', 'cmin');
},
collation => sub {
my ( $table ) = @_;
return test_regex($table, 'Collation', $o->get('collation'));
},
'column-name' => sub {
my ( $table ) = @_;
my $struct = $table->{struct};
return unless $struct;
my $test = $o->get('column-name');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
foreach my $col ( @{$struct->{cols}} ) {
return 1 if $col =~ m/$test/;
}
return 0;
},
'column-type' => sub {
my ( $table ) = @_;
my $struct = $table->{struct};
return unless $struct;
my $test = lc($o->get('column-type'));
my $type_for = $struct->{type_for};
foreach my $col ( keys %$type_for ) {
return 1 if $type_for->{$col} eq $test;
}
return 0;
},
comment => sub {
my ( $table ) = @_;
return test_regex($table, 'Comment', $o->get('comment'));
},
createopts => sub {
my ( $table ) = @_;
return test_regex($table, 'Create_options', $o->get('createopts'));
},
ctime => sub {
my ( $table ) = @_;
return test_date($table, 'Create_time', 'ctime');
},
datafree => sub {
my ( $table ) = @_;
return test_number($table, 'Data_free', $o->get('datafree'));
},
datasize => sub {
my ( $table ) = @_;
return test_number($table, 'Data_length', $o->get('datasize'));
},
dbregex => sub {
my ( $table ) = @_;
return test_regex($table, 'Database', $o->get('dbregex'));
},
empty => sub {
my ( $table ) = @_;
return test_number($table, 'Rows', '0');
},
engine => sub {
my ( $table ) = @_;
return test_regex($table, 'Engine', $o->get('engine'));
},
function => sub {
my ( $table ) = @_;
return unless $table->{stored_code} && $table->{stored_code} eq 'FUNCTION';
my $def = $table->{def};
return unless $def;
my $test = $o->get('function');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return $def =~ m/$test/;
},
indexsize => sub {
my ( $table ) = @_;
return test_number($table, 'Index_length', $o->get('indexsize'));
},
kmin => sub {
my ( $table ) = @_;
return test_date($table, 'Check_time', 'kmin');
},
ktime => sub {
my ( $table ) = @_;
return test_date($table, 'Check_time', 'ktime');
},
mmin => sub {
my ( $table ) = @_;
return test_date($table, 'Update_time', 'mmin');
},
mtime => sub {
my ( $table ) = @_;
return test_date($table, 'Update_time', 'mtime');
},
'connection-id' => sub {
my ( $table ) = @_;
my $test = $o->get('case-insensitive') ? "(?i)".$o->get('connection-id')
: $o->get('connection-id');
my ( $pid ) = $table->{Name} =~ m/$test/;
return $pid && !exists $connections{$pid};
},
procedure => sub {
my ( $table ) = @_;
return unless $table->{stored_code} && $table->{stored_code} eq 'PROCEDURE';
my $def = $table->{def};
return unless $def;
my $test = $o->get('procedure');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return $def =~ m/$test/;
},
rows => sub {
my ( $table ) = @_;
return test_number($table, 'Rows', $o->get('rows'));
},
rowformat => sub {
my ( $table ) = @_;
return test_regex($table, 'Row_format', $o->get('rowformat'));
},
'server-id' => sub {
my ( $table ) = @_;
my $test = $o->get('case-insensitive') ? "(?i)".$o->get('server-id')
: $o->get('server-id');
my ( $sid ) = $table->{Name} =~ m/$test/;
return $sid && $sid == $server_id;
},
tablesize => sub {
my ( $table ) = @_;
return test_number($table, 'Table_length', $o->get('tablesize'));
},
tblregex => sub {
my ( $table ) = @_;
return test_regex($table, 'Name', $o->get('tblregex'));
},
tblversion => sub {
my ( $table ) = @_;
return test_number($table, 'Version', $o->get('tblversion'));
},
trigger => sub {
my ( $table ) = @_;
return unless $table->{stored_code} && $table->{stored_code} eq 'TRIGGER';
my $def = $table->{def};
return unless $def;
my $test = $o->get('trigger');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return $def =~ m/$test/;
},
'trigger-table' => sub {
my ( $table ) = @_;
return unless $table->{stored_code} && $table->{stored_code} eq 'TRIGGER';
my $test = $o->get('trigger-table');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return $table->{trigger_table} =~ m/$test/;
},
view => sub {
my ( $table ) = @_;
my $view = $table->{view};
return unless $view;
my $test = $o->get('view');
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return $view =~ m/$test/;
},
);
# Functions to call when doing actions
my %action_for = (
print => sub {
my ( $table ) = @_;
print "$table->{Database}.$table->{Name}\n";
},
exec => sub {
my ( $table ) = @_;
my $sql = sprintf($fmt_for{exec}->{str},
map { defined $_ ? $_ : '' }
@{$table}{@{$fmt_for{exec}->{arg_names}}});
PTDEBUG && _d($sql);
$exec_dbh->do($sql);
},
printf => sub {
my ( $table ) = @_;
printf($fmt_for{printf}->{str},
map { defined $_ ? $_ : '' }
@{$table}{@{$fmt_for{printf}->{arg_names}}});
},
);
my %arg_for = (
a => 'Auto_increment',
A => 'Avg_row_length',
c => 'Checksum',
C => 'Create_time',
D => 'Database',
d => 'Data_length',
E => 'Engine',
F => 'Data_free',
f => 'Innodb_free',
I => 'Index_length',
K => 'Check_time',
L => 'Collation',
M => 'Max_data_length',
N => 'Name',
O => 'Comment',
P => 'Create_options',
R => 'Row_format',
S => 'Rows',
T => 'Table_length',
U => 'Update_time',
V => 'Version',
);
my @table_struct_tests = qw(
column-name
column-type
view
);
my @stored_code_tests = qw(
procedure
function
trigger
);
sub main {
local @ARGV = @_; # set global ARGV for this package
# ########################################################################
# Get configuration information.
# ########################################################################
my $q = new Quoter();
$o = new OptionParser();
$o->get_specs();
$o->get_opts();
my $dp = $o->DSNParser();
$dp->prop('set-vars', $o->set_vars());
# Make sure OptionParser understands that these options are used.
# cmin ctime empty kmin ktime mmin mtime exec printf
# Ensure there is a capture group.
if ( $o->get('connection-id') && $o->get('connection-id') !~ m/\(\\d\+\)/ ) {
$o->save_error("--connection-id regex doesn't capture digits with (\\d+)");
}
# Ensure there is a capture group.
if ( $o->get('server-id') && $o->get('server-id') !~ m/\(\\d\+\)/ ) {
$o->save_error("--server-id regex doesn't capture digits with (\\d+)");
}
$o->usage_or_errors();
# Interpolate strings for printf and exec. At the same time discover whether
# I must use SHOW TABLE STATUS (slower than SHOW TABLES) to fetch data.
my $showstat
= grep { $o->get($_) } qw(
autoinc avgrowlen checksum cmin collation comment createopts ctime
datasize datafree empty engine indexsize kmin ktime mmin mtime rows
rowformat tablesize tblversion);
foreach my $thing (qw(exec printf)) {
next unless $o->get($thing);
my ($str, $arg_names) = interpolate($o->get($thing));
$fmt_for{$thing} = { str => $str, arg_names => $arg_names };
if ( grep { $_ !~ m/^(Database|Name)$/ } @$arg_names ) {
$showstat = 1;
}
}
# Discover if we need to parse SHOW CREATE TABLE.
my $need_table_struct = grep { $o->got($_); } @table_struct_tests;
PTDEBUG && _d('Need table struct:', $need_table_struct);
if ( $need_table_struct ) {
$tp = new TableParser(Quoter => $q);
}
# ########################################################################
# If --pid, check it first since we'll die if it already exits.
# ########################################################################
my $daemon;
if ( $o->get('pid') ) {
# We're not daemoninzing, it just handles PID stuff. Keep $daemon
# in the the scope of main() because when it's destroyed it automatically
# removes the PID file.
$daemon = new Daemon(
daemonize => 0, # not daemoninzing, just PID file
pid_file => $o->get('pid'),
);
$daemon->run();
}
# ########################################################################
# Get ready to do the main work.
# ########################################################################
# Connect to the database.
if ( $o->get('ask-pass') ) {
$o->set('password', OptionParser::prompt_noecho("Enter password: "));
}
my $dsn = $dp->parse_options($o);
$dbh = $dp->get_dbh($dp->get_cxn_params($dsn), { AutoCommit => 1 } );
if ( $o->get('exec-dsn') ) {
my $exec_dsn = $dp->parse($o->get('exec-dsn'), $dsn);
$exec_dbh = $dp->get_dbh($dp->get_cxn_params($exec_dsn),
{ AutoCommit => 1 });
}
else {
$exec_dbh = $dbh;
}
# If no other action was given, the default action is to print.
if ( !grep { $o->get($_) } qw( exec exec-plus print printf ) ) {
$o->set('print', 1);
}
# Figure out the time referred to by date/time options.
my $basetime;
foreach my $option (
grep { defined $o->get($_) } qw(cmin ctime kmin ktime mmin mtime) )
{
# Initialize a consistent point in time.
$basetime ||=
$dbh->selectcol_arrayref(
"SELECT " . ($o->get('day-start') ? 'CURRENT_DATE'
: 'CURRENT_TIMESTAMP')
)->[0];
my ($val) = $o->get($option) =~ m/(\d+)/;
my $inter = $option =~ m/min/ ? 'MINUTE' : 'DAY';
my $query = "SELECT DATE_SUB('$basetime', INTERVAL $val $inter)";
$time_for{$option} = $dbh->selectcol_arrayref($query)->[0];
}
# Fetch and save a list of processes currently running.
if ( $o->get('connection-id') ) {
# Ensure I have the PROCESS privilege.
my $proc =
grep { m/ALL PRIVILEGES.*?\*\.\*|PROCESS/ }
@{$dbh->selectcol_arrayref('SHOW GRANTS')};
if ( !$proc ) {
die "--connection-id requires the PROCESS privilege for safety.\n";
}
}
($server_id) = $dbh->selectrow_array('SELECT @@SERVER_ID');
# Discover if we need to get stored code. Need dbh to do this.
my $need_stored_code = grep { $o->got($_); } @stored_code_tests;
# ########################################################################
# Do the version-check
# ########################################################################
if ( $o->get('version-check') && (!$o->has('quiet') || !$o->get('quiet')) ) {
VersionCheck::version_check(
force => $o->got('version-check'),
instances => [ { dbh => $dbh, dsn => $dsn } ],
);
}
# ########################################################################
# Go do it.
# ########################################################################
my @databases = @ARGV ? @ARGV
: $o->get('dblike') ? @{$dbh->selectcol_arrayref('SHOW DATABASES LIKE ?', {}, $o->get('dblike'))}
: @{$dbh->selectcol_arrayref('SHOW DATABASES')};
my @exec_plus;
DATABASE:
foreach my $database ( @databases ) {
next DATABASE if $database =~ m/^(?:information_schema|lost\+found)$/mi;
my $sta = $showstat ? ' STATUS' : 'S';
my $sth = $o->get('tbllike')
? $dbh->prepare("SHOW TABLE$sta FROM `$database` LIKE ?")
: $dbh->prepare("SHOW TABLE$sta FROM `$database`");
$sth->execute($o->get('tbllike') || ());
my @tables = @{$sth->fetchall_arrayref({})};
# Must re-fetch every time; there are too many ways things can go wrong
# otherwise (for example, the counter wraps over the unsigned int
# boundary).
if ( $o->get('connection-id') ) {
%connections = map { $_ => 1 }
@{$dbh->selectcol_arrayref('SHOW FULL PROCESSLIST')};
}
# Make results uniform across MySQL versions, and generate additional
# properties.
foreach my $table ( @tables ) {
if ( $showstat ) {
my ($ib_free) = $table->{Comment} && $table->{Comment} =~ m/InnoDB free: (\d+) kB/;
$table->{Engine} ||= $table->{Type};
$table->{Table_length} = ($table->{Index_length} || 0) + ($table->{Data_length} || 0);
$table->{Innodb_free} = $ib_free ? 1_024 * $ib_free : undef;
delete $table->{Type};
}
else {
my ($name) = values %$table;
$table = { Name => $name };
}
$table->{Database} = $database;
if ( $need_table_struct ) {
PTDEBUG && _d('Getting table struct for',
$database, '.', $table->{Name});
my $ddl = $tp->get_create_table($dbh, $database, $table->{Name});
if ( $ddl =~ m/CREATE TABLE/ ) {
my $table_struct;
eval { $table_struct = $tp->parse($ddl) };
if ( $EVAL_ERROR ) {
PTDEBUG && _d('Failed to parse table:', $EVAL_ERROR);
}
$table->{struct} = $table_struct;
}
else {
$table->{view} = $ddl;
}
}
}
if ( $need_stored_code ) {
foreach my $type ( qw(PROCEDURE FUNCTION) ) {
my $sql = "SELECT ROUTINE_NAME AS name, "
. " ROUTINE_DEFINITION AS definition "
. " FROM INFORMATION_SCHEMA.ROUTINES "
. " WHERE ROUTINE_SCHEMA = '$database' "
. " AND ROUTINE_TYPE = '$type'";
PTDEBUG && _d($sql);
my $codes = $dbh->selectall_arrayref($sql);
foreach my $code ( @$codes ) {
push @tables, {
Database => $database,
Name => "$type $code->[0]",
stored_code => $type,
def => $code->[1],
};
}
}
my $sql = "SELECT TRIGGER_NAME AS name, "
. " ACTION_STATEMENT AS action, "
. " EVENT_OBJECT_TABLE AS `table`, "
. " EVENT_MANIPULATION AS type "
. " FROM INFORMATION_SCHEMA.TRIGGERS "
. " WHERE EVENT_OBJECT_SCHEMA = '$database'";
PTDEBUG && _d($sql);
my $trigs = $dbh->selectall_arrayref($sql);
my $codes = $dbh->selectall_arrayref($sql);
foreach my $trig ( @$trigs ) {
push @tables, {
Database => $database,
Name => "$trig->[3] TRIGGER $trig->[0] on $trig->[2]",
trigger_table => $trig->[2],
stored_code => 'TRIGGER',
def => $trig->[1],
};
}
}
# Apply the tests to find the matching tables.
@tables = grep {
my $table = $_;
my @tests = grep { $o->get($_) } keys %test_for;
if ( @tests ) {
($o->get('or') ? any($table, @tests) : all($table, @tests));
}
else {
$table; # No tests == all tables (issue 549).
}
} @tables;
# Quote database and table names if desired.
if ( $o->get('quote') ) {
foreach my $table ( @tables ) {
$table->{Database} = $q->quote($table->{Database});
$table->{Name} = $q->quote($table->{Name});
}
}
foreach my $table ( @tables ) {
my @actions = grep { $o->get($_) } keys %action_for;
foreach my $action ( @actions ) {
$action_for{$action}->($table);
}
}
push @exec_plus, @tables;
}
# Handle exec-plus.
if ( $o->get('exec-plus') ) {
my $table_list = join(', ',map {"$_->{Database}.$_->{Name}"} @exec_plus);
(my $sql = $o->get('exec-plus')) =~ s/%s/$table_list/g;
$exec_dbh->do($sql);
}
return 0;
}
# ############################################################################
# Subroutines
# ############################################################################
# One test is true
sub any {
my ( $table, @tests ) = @_;
foreach my $test ( @tests ) {
return 1 if $test_for{$test}->($table);
}
return 0;
}
# All tests are true
sub all {
my ( $table, @tests ) = @_;
foreach my $test ( @tests ) {
return 0 unless $test_for{$test}->($table);
}
return 1;
}
# Checks the given property of the given table to see if it passes the test
sub test_number {
my ( $table, $prop, $test ) = @_;
# E.g. --datasize NULL.
if ( $test eq 'null' ) {
return !defined $table->{$prop};
}
my ($num) = $test =~ m/(\d+)/;
return defined $table->{$prop} && (
( $test =~ m/-/ && $table->{$prop} < $num )
|| ( $test =~ m/\+/ && $table->{$prop} > $num )
|| ( $table->{$prop} == $num ));
}
# Checks the given property of the given table to see if it passes the test
sub test_date {
my ( $table, $prop, $test ) = @_;
return defined $table->{$prop} && (
( $o->get($test) =~ m/-/ && $table->{$prop} gt $time_for{$test} )
|| ( $o->get($test) =~ m/\+/ && $table->{$prop} lt $time_for{$test} )
|| ( $table->{$prop} eq $time_for{$test} ));
}
# Checks the given property of the given table to see if it passes the test
sub test_regex {
my ( $table, $prop, $test ) = @_;
if ( $o->get('case-insensitive') ) {
$test = "(?i)$test";
}
return defined $table->{$prop} && $table->{$prop} =~ m/$test/;
}
# Does string-interpolation and stuff. Returns the string and a list of the
# properties that go into the resulting placeholders.
sub interpolate {
my ( $str ) = @_;
my @arg_names;
# Replace % directives
$str =~ s/%(.)/(exists $arg_for{$1} && push @arg_names, $arg_for{$1} ) ? '\%s' : "$1"/xge;
# Get Perl to interpolate escape sequences
$str =~ s/(?<!\\)"/\\"/g;
$str = eval qq{"$str"};
return ( $str, \@arg_names );
}
sub expand {
my ( $test ) = @_;
my %factor_for = (k => 1_024, M => 1_048_576, G => 1_073_741_824);
my ($pre, $num, $factor) = $test =~ m/([+-])?(\d+)([kMG])?/;
if ( $factor ) {
$num *= $factor_for{$factor};
}
return "$pre$num";
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
# ############################################################################
# Run the program.
# ############################################################################
if ( !caller ) { exit main(@ARGV); }
1; # Because this is a module as well as a script.
# ############################################################################
# Documentation
# ############################################################################
=pod
=head1 NAME
pt-find - Find MySQL tables and execute actions, like GNU find.
=head1 SYNOPSIS
Usage: pt-find [OPTIONS] [DATABASES]
pt-find searches for MySQL tables and executes actions, like GNU find. The
default action is to print the database and table name.
Find all tables created more than a day ago, which use the MyISAM engine, and
print their names:
pt-find --ctime +1 --engine MyISAM
Find MyISAM tables and convert them to InnoDB:
pt-find --engine MyISAM --exec "ALTER TABLE %D.%N ENGINE=InnoDB"
Find tables created by a process that no longer exists, following the
name_sid_pid naming convention, and remove them.
pt-find --connection-id '\D_\d+_(\d+)$' --server-id '\D_(\d+)_\d+$' --exec-plus "DROP TABLE %s"
Find empty tables in the test and junk databases, and delete them:
pt-find --empty junk test --exec-plus "DROP TABLE %s"
Find tables more than five gigabytes in total size:
pt-find --tablesize +5G
Find all tables and print their total data and index size, and sort largest
tables first (sort is a different program, by the way).
pt-find --printf "%T\t%D.%N\n" | sort -rn
As above, but this time, insert the data back into the database for posterity:
pt-find --noquote --exec "INSERT INTO sysdata.tblsize(db, tbl, size) VALUES('%D', '%N', %T)"
=head1 RISKS
Percona Toolkit is mature, proven in the real world, and well tested,
but all database tools can pose a risk to the system and the database
server. Before using this tool, please:
=over
=item * Read the tool's documentation
=item * Review the tool's known L<"BUGS">
=item * Test the tool on a non-production server
=item * Backup your production server and verify the backups
=back
=head1 DESCRIPTION
pt-find looks for MySQL tables that pass the tests you specify, and executes
the actions you specify. The default action is to print the database and table
name to STDOUT.
pt-find is simpler than GNU find. It doesn't allow you to specify
complicated expressions on the command line.
pt-find uses SHOW TABLES when possible, and SHOW TABLE STATUS when needed.
=head1 OPTION TYPES
There are three types of options: normal options, which determine some behavior
or setting; tests, which determine whether a table should be included in the
list of tables found; and actions, which do something to the tables pt-find
finds.
pt-find uses standard Getopt::Long option parsing, so you should use double
dashes in front of long option names, unlike GNU find.
=head1 OPTIONS
This tool accepts additional command-line arguments. Refer to the
L<"SYNOPSIS"> and usage information for details.
=over
=item --ask-pass
Prompt for a password when connecting to MySQL.
=item --[no]buffer-stdout
default: yes
Enables STDOUT buffering. Disable this option if you want to see live progress
when using output post-processing tools such as C<tee> or C<kubectl logs>.
=item --case-insensitive
Specifies that all regular expression searches are case-insensitive.
=item --charset
short form: -A; type: string
Default character set. If the value is utf8, sets Perl's binmode on
STDOUT to utf8, passes the mysql_enable_utf8 option to DBD::mysql, and runs SET
NAMES UTF8 after connecting to MySQL. Any other value sets binmode on STDOUT
without the utf8 layer, and runs SET NAMES after connecting to MySQL.
=item --config
type: Array
Read this comma-separated list of config files; if specified, this must be the
first option on the command line.
=item --database
short form: -D; type: string
Connect to this database.
=item --day-start
Measure times (for L<"--mmin">, etc) from the beginning of today rather than
from the current time.
=item --defaults-file
short form: -F; type: string
Only read mysql options from the given file. You must give an absolute
pathname.
=item --help
Show help and exit.
=item --host
short form: -h; type: string
Connect to host.
=item --mysql_ssl
short form: -s; type: int
Create SSL MySQL connection.
=item --or
Combine tests with OR, not AND.
By default, tests are evaluated as though there were an AND between them. This
option switches it to OR.
Option parsing is not implemented by pt-find itself, so you cannot specify
complicated expressions with parentheses and mixtures of OR and AND.
=item --password
short form: -p; type: string
Password to use when connecting.
If password contains commas they must be escaped with a backslash: "exam\,ple"
=item --pid
type: string
Create the given PID file. The tool won't start if the PID file already
exists and the PID it contains is different than the current PID. However,
if the PID file exists and the PID it contains is no longer running, the
tool will overwrite the PID file with the current PID. The PID file is
removed automatically when the tool exits.
=item --port
short form: -P; type: int
Port number to use for connection.
=item --[no]quote
default: yes
Quotes MySQL identifier names with MySQL's standard backtick character.
Quoting happens after tests are run, and before actions are run.
=item --set-vars
type: Array
Set the MySQL variables in this comma-separated list of C<variable=value> pairs.
By default, the tool sets:
=for comment ignore-pt-internal-value
MAGIC_set_vars
wait_timeout=10000
Variables specified on the command line override these defaults. For
example, specifying C<--set-vars wait_timeout=500> overrides the defaultvalue of C<10000>.
The tool prints a warning and continues if a variable cannot be set.
=item --socket
short form: -S; type: string
Socket file to use for connection.
=item --user
short form: -u; type: string
User for login if not current user.
=item --version
Show version and exit.
=item --[no]version-check
default: yes
Check for the latest version of Percona Toolkit, MySQL, and other programs.
This is a standard "check for updates automatically" feature, with two
additional features. First, the tool checks its own version and also the
versions of the following software: operating system, Percona Monitoring and
Management (PMM), MySQL, Perl, MySQL driver for Perl (DBD::mysql), and
Percona Toolkit. Second, it checks for and warns about versions with known
problems. For example, MySQL 5.5.25 had a critical bug and was re-released
as 5.5.25a.
A secure connection to Percona’s Version Check database server is done to
perform these checks. Each request is logged by the server, including software
version numbers and unique ID of the checked system. The ID is generated by the
Percona Toolkit installation script or when the Version Check database call is
done for the first time.
Any updates or known problems are printed to STDOUT before the tool's normal
output. This feature should never interfere with the normal operation of the
tool.
For more information, visit L<https://www.percona.com/doc/percona-toolkit/LATEST/version-check.html>.
=back
=head2 TESTS
Most tests check some criterion against a column of SHOW TABLE STATUS output.
Numeric arguments can be specified as +n for greater than n, -n for less than n,
and n for exactly n. All numeric options can take an optional suffix multiplier
of k, M or G (1_024, 1_048_576, and 1_073_741_824 respectively). All patterns
are Perl regular expressions (see 'man perlre') unless specified as SQL LIKE
patterns.
Dates and times are all measured relative to the same instant, when pt-find
first asks the database server what time it is. All date and time manipulation
is done in SQL, so if you say to find tables modified 5 days ago, that
translates to SELECT DATE_SUB(CURRENT_TIMESTAMP, INTERVAL 5 DAY). If you
specify L<"--day-start">, if course it's relative to CURRENT_DATE instead.
However, table sizes and other metrics are not consistent at an instant in
time. It can take some time for MySQL to process all the SHOW queries, and
pt-find can't do anything about that. These measurements are as of the
time they're taken.
If you need some test that's not in this list, file a feature request at
L<https://jira.percona.com/projects/PT>.
=over
=item --autoinc
type: string; group: Tests
Table's next AUTO_INCREMENT is n. This tests the Auto_increment column.
=item --avgrowlen
type: size; group: Tests
Table avg row len is n bytes. This tests the Avg_row_length column.
The specified size can be "NULL" to test where Avg_row_length IS NULL.
=item --checksum
type: string; group: Tests
Table checksum is n. This tests the Checksum column.
=item --cmin
type: size; group: Tests
Table was created n minutes ago. This tests the Create_time column.
=item --collation
type: string; group: Tests
Table collation matches pattern. This tests the Collation column.
=item --column-name
type: string; group: Tests
A column name in the table matches pattern.
=item --column-type
type: string; group: Tests
A column in the table matches this type (case-insensitive).
Examples of types are: varchar, char, int, smallint, bigint, decimal, year,
timestamp, text, enum.
=item --comment
type: string; group: Tests
Table comment matches pattern. This tests the Comment column.
=item --connection-id
type: string; group: Tests
Table name has nonexistent MySQL connection ID. This tests the table name for
a pattern. The argument to this test must be a Perl regular expression that
captures digits like this: (\d+). If the table name matches the pattern,
these captured digits are taken to be the MySQL connection ID of some process.
If the connection doesn't exist according to SHOW FULL PROCESSLIST, the test
returns true. If the connection ID is greater than pt-find's own
connection ID, the test returns false for safety.
Why would you want to do this? If you use MySQL statement-based replication,
you probably know the trouble temporary tables can cause. You might choose to
work around this by creating real tables with unique names, instead of
temporary tables. One way to do this is to append your connection ID to the
end of the table, thusly: scratch_table_12345. This assures the table name is
unique and lets you have a way to find which connection it was associated
with. And perhaps most importantly, if the connection no longer exists, you
can assume the connection died without cleaning up its tables, and this table
is a candidate for removal.
The argument to use for L<"--connection-id"> is "\D_(\d+)$". That finds tables
with a series of numbers at the end, preceded by an underscore and some
non-number character (the latter criterion prevents from examining tables
with a date at the end, which people tend to do: baron_scratch_2007_05_07 for
example). It's better to keep the scratch tables separate.
If you do this, make sure the user pt-find runs as has the PROCESS privilege!
Otherwise it will only see connections from the same user, and might think some
tables are ready to remove when they're still in use. For safety, pt-find
checks this for you.
See also L<"--server-id">.
=item --createopts
type: string; group: Tests
Table create option matches pattern. This tests the Create_options column.
=item --ctime
type: size; group: Tests
Table was created n days ago. This tests the Create_time column.
=item --datafree
type: size; group: Tests
Table has n bytes of free space. This tests the Data_free column.
The specified size can be "NULL" to test where Data_free IS NULL.
=item --datasize
type: size; group: Tests
Table data uses n bytes of space. This tests the Data_length column.
The specified size can be "NULL" to test where Data_length IS NULL.
Note: Starting from MySQL 8.0, empty tables return 0 instead of NULL.
=item --dblike
type: string; group: Tests
Database name matches SQL LIKE pattern.
=item --dbregex
type: string; group: Tests
Database name matches this pattern.
=item --empty
group: Tests
Table has no rows. This tests the Rows column.
=item --engine
type: string; group: Tests
Table storage engine matches this pattern. This tests the Engine column, or in
earlier versions of MySQL, the Type column.
=item --function
type: string; group: Tests
Function definition matches pattern.
=item --indexsize
type: size; group: Tests
Table indexes use n bytes of space. This tests the Index_length column.
The specified size can be "NULL" to test where Index_length IS NULL.
=item --kmin
type: size; group: Tests
Table was checked n minutes ago. This tests the Check_time column.
=item --ktime
type: size; group: Tests
Table was checked n days ago. This tests the Check_time column.
=item --mmin
type: size; group: Tests
Table was last modified n minutes ago. This tests the Update_time column.
=item --mtime
type: size; group: Tests
Table was last modified n days ago. This tests the Update_time column.
=item --procedure
type: string; group: Tests
Procedure definition matches pattern.
=item --rowformat
type: string; group: Tests
Table row format matches pattern. This tests the Row_format column.
=item --rows
type: size; group: Tests
Table has n rows. This tests the Rows column.
The specified size can be "NULL" to test where Rows IS NULL.
=item --server-id
type: string; group: Tests
Table name contains the server ID. If you create temporary tables with the
naming convention explained in L<"--connection-id">, but also add the server ID of the
server on which the tables are created, then you can use this pattern match to
ensure tables are dropped only on the server they're created on. This prevents
a table from being accidentally dropped on a replica while it's in use (provided
that your server IDs are all unique, which they should be for replication to
work).
For example, on the replication source (server ID 22) you create a table called
scratch_table_22_12345. If you see this table on the replica (server ID 23), you
might think it can be dropped safely if there's no such connection 12345. But
if you also force the name to match the server ID with C<--server-id '\D_(\d+)_\d+$'>,
the table won't be dropped on the replica.
=item --tablesize
type: size; group: Tests
Table uses n bytes of space. This tests the sum of the Data_length and
Index_length columns.
=item --tbllike
type: string; group: Tests
Table name matches SQL LIKE pattern.
=item --tblregex
type: string; group: Tests
Table name matches this pattern.
=item --tblversion
type: size; group: Tests
Table version is n. This tests the Version column.
=item --trigger
type: string; group: Tests
Trigger action statement matches pattern.
=item --trigger-table
type: string; group: Tests
L<"--trigger"> is defined on table matching pattern.
=item --view
type: string; group: Tests
CREATE VIEW matches this pattern.
=back
=head2 ACTIONS
The L<"--exec-plus"> action happens after everything else, but otherwise actions
happen in an indeterminate order. If you need determinism, file a feature request
at L<https://jira.percona.com/projects/PT>.
=over
=item --exec
type: string; group: Actions
Execute this SQL with each item found. The SQL can contain escapes and
formatting directives (see L<"--printf">).
=item --exec-dsn
type: string; group: Actions
Specify a DSN in key-value format to use when executing SQL with L<"--exec"> and
L<"--exec-plus">. Any values not specified are inherited from command-line
arguments.
=item --exec-plus
type: string; group: Actions
Execute this SQL with all items at once. This option is unlike L<"--exec">. There
are no escaping or formatting directives; there is only one special placeholder
for the list of database and table names, %s. The list of tables found will be
joined together with commas and substituted wherever you place %s.
You might use this, for example, to drop all the tables you found:
DROP TABLE %s
This is sort of like GNU find's "-exec command {} +" syntax.
=item --print
group: Actions
Print the database and table name, followed by a newline. This is the default
action if no other action is specified.
=item --printf
type: string; group: Actions
Print format on the standard output, interpreting '\' escapes and '%'
directives. Escapes are backslashed characters, like \n and \t. Perl
interprets these, so you can use any escapes Perl knows about. Directives are
replaced by %s, and as of this writing, you can't add any special formatting
instructions, like field widths or alignment.
Here is a list of the directives. Note that most of them simply come from
columns of SHOW TABLE STATUS. If the column is NULL or doesn't exist, you get
an empty string in the output. A % character followed by any character not in
the following list is discarded (but the other character is printed).
CHAR DATA SOURCE NOTES
---- ------------------ ------------------------------------------
a Auto_increment
A Avg_row_length
c Checksum
C Create_time
D Database The database name in which the table lives
d Data_length
E Engine In older versions of MySQL, this is Type
F Data_free
f Innodb_free Parsed from the Comment field
I Index_length
K Check_time
L Collation
M Max_data_length
N Name
O Comment
P Create_options
R Row_format
S Rows
T Table_length Data_length+Index_length
U Update_time
V Version
=back
=head1 DSN OPTIONS
These DSN options are used to create a DSN. Each option is given like
C<option=value>. The options are case-sensitive, so P and p are not the
same option. There cannot be whitespace before or after the C<=> and
if the value contains whitespace it must be quoted. DSN options are
comma-separated. See the L<percona-toolkit> manpage for full details.
=over
=item * A
dsn: charset; copy: yes
Default character set.
=item * D
dsn: database; copy: yes
Default database.
=item * F
dsn: mysql_read_default_file; copy: yes
Only read default options from the given file
=item * h
dsn: host; copy: yes
Connect to host.
=item * p
dsn: password; copy: yes
Password to use when connecting.
If password contains commas they must be escaped with a backslash: "exam\,ple"
=item * P
dsn: port; copy: yes
Port number to use for connection.
=item * S
dsn: mysql_socket; copy: yes
Socket file to use for connection.
=item * u
dsn: user; copy: yes
User for login if not current user.
=item * s
dsn: mysql_ssl; copy: yes
Create SSL connection
=back
=head1 ENVIRONMENT
The environment variable C<PTDEBUG> enables verbose debugging output to STDERR.
To enable debugging and capture all output to a file, run the tool like:
PTDEBUG=1 pt-find ... > FILE 2>&1
Be careful: debugging output is voluminous and can generate several megabytes
of output.
=head1 ATTENTION
Using <PTDEBUG> might expose passwords. When debug is enabled, all command line
parameters are shown in the output.
=head1 SYSTEM REQUIREMENTS
You need Perl, DBI, DBD::mysql, and some core packages that ought to be
installed in any reasonably new version of Perl.
=head1 BUGS
For a list of known bugs, see L<https://jira.percona.com/projects/PT/issues>.
Please report bugs at L<https://jira.percona.com/projects/PT>.
Include the following information in your bug report:
=over
=item * Complete command-line used to run the tool
=item * Tool L<"--version">
=item * MySQL version of all servers involved
=item * Output from the tool including STDERR
=item * Input files (log/dump/config files, etc.)
=back
If possible, include debugging output by running the tool with C<PTDEBUG>;
see L<"ENVIRONMENT">.
=head1 DOWNLOADING
Visit L<http://www.percona.com/software/percona-toolkit/> to download the
latest release of Percona Toolkit. Or, get the latest release from the
command line:
wget percona.com/get/percona-toolkit.tar.gz
wget percona.com/get/percona-toolkit.rpm
wget percona.com/get/percona-toolkit.deb
You can also get individual tools from the latest release:
wget percona.com/get/TOOL
Replace C<TOOL> with the name of any tool.
=head1 AUTHORS
Baron Schwartz
=head1 ABOUT PERCONA TOOLKIT
This tool is part of Percona Toolkit, a collection of advanced command-line
tools for MySQL developed by Percona. Percona Toolkit was forked from two
projects in June, 2011: Maatkit and Aspersa. Those projects were created by
Baron Schwartz and primarily developed by him and Daniel Nichter. Visit
L<http://www.percona.com/software/> to learn about other free, open-source
software from Percona.
=head1 COPYRIGHT, LICENSE, AND WARRANTY
This program is copyright 2011-2024 Percona LLC and/or its affiliates,
2007-2011 Baron Schwartz.
THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
systems, you can issue `man perlgpl' or `man perlartistic' to read these
licenses.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA.
=head1 VERSION
pt-find 3.7.0
=cut
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