Update parse_options.sh in pt-stalk.

This commit is contained in:
Daniel Nichter
2012-01-23 10:54:43 -07:00
parent 034f76d77e
commit cab3bb6eab

View File

@@ -49,21 +49,26 @@ die() {
# ###########################################################################
set -u
ARGV="" # Non-option args (probably input files)
EXT_ARGV="" # Everything after -- (args for an external command)
OPT_ERRS=0 # How many command line option errors
OPT_VERSION="no" # If --version was specified
OPT_HELP="no" # If --help was specified
ARGV="" # Non-option args (probably input files)
EXT_ARGV="" # Everything after -- (args for an external command)
HAVE_EXT_ARGV="" # Got --, everything else is put into EXT_ARGV
OPT_ERRS=0 # How many command line option errors
OPT_VERSION="no" # If --version was specified
OPT_HELP="no" # If --help was specified
PO_DIR="$TMPDIR/po" # Directory with program option spec files
usage() {
local file="$1"
local usage=$(grep '^Usage: ' "$file")
echo $usage >&2
echo >&2
echo "For more information, 'man $TOOL' or 'perldoc $file'." >&2
echo $usage
echo
echo "For more information, 'man $TOOL' or 'perldoc $file'."
}
usage_or_errors() {
@@ -77,20 +82,20 @@ usage_or_errors() {
if [ "$OPT_HELP" = "yes" ]; then
usage "$file"
echo >&2
echo "Command line options:" >&2
echo >&2
echo
echo "Command line options:"
echo
for opt in $(ls $TMPDIR/po/); do
local desc=$(cat $TMPDIR/po/$opt | grep '^desc:' | sed -e 's/^desc://')
echo "--$opt" >&2
echo " $desc" >&2
echo >&2
echo "--$opt"
echo " $desc"
echo
done
return 1
fi
if [ $OPT_ERRS -gt 0 ]; then
echo >&2
echo
usage "$file"
return 1
fi
@@ -102,54 +107,70 @@ parse_options() {
local file="$1"
shift
if [ ! -d "$TMPDIR/po/" ]; then
mkdir "$TMPDIR/po/"
ARGV=""
EXT_ARGV=""
HAVE_EXT_ARGV=""
OPT_ERRS=0
OPT_VERSION="no"
OPT_HELP="no"
PO_DIR="$TMPDIR/po"
if [ ! -d "$PO_DIR" ]; then
mkdir "$PO_DIR"
if [ $? -ne 0 ]; then
echo "Cannot mkdir $TMPDIR/po/" >&2
echo "Cannot mkdir $PO_DIR" >&2
exit 1
fi
fi
rm -rf "$TMPDIR"/po/*
rm -rf "$PO_DIR"/*
if [ $? -ne 0 ]; then
echo "Cannot rm -rf $TMPDIR/po/*" >&2
echo "Cannot rm -rf $PO_DIR/*" >&2
exit 1
fi
(
export PO_DIR="$TMPDIR/po"
cat "$file" | perl -ne '
BEGIN { $/ = ""; }
next unless $_ =~ m/^=head1 OPTIONS/;
while ( defined(my $para = <>) ) {
last if $para =~ m/^=head1/;
_parse_pod "$file"
_eval_po
_parse_config_files
_parse_command_line "$@"
}
_parse_pod() {
local file="$1"
cat "$file" | PO_DIR="$PO_DIR" perl -ne '
BEGIN { $/ = ""; }
next unless $_ =~ m/^=head1 OPTIONS/;
while ( defined(my $para = <>) ) {
last if $para =~ m/^=head1/;
chomp;
if ( $para =~ m/^=item --(\S+)/ ) {
my $opt = $1;
my $file = "$ENV{PO_DIR}/$opt";
open my $opt_fh, ">", $file or die "Cannot open $file: $!";
print $opt_fh "long:$opt\n";
$para = <>;
chomp;
if ( $para =~ m/^=item --(\S+)/ ) {
my $opt = $1;
my $file = "$ENV{PO_DIR}/$opt";
open my $opt_fh, ">", $file or die "Cannot open $file: $!";
print $opt_fh "long:$opt\n";
if ( $para =~ m/^[a-z ]+:/ ) {
map {
chomp;
my ($attrib, $val) = split(/: /, $_);
print $opt_fh "$attrib:$val\n";
} split(/; /, $para);
$para = <>;
chomp;
if ( $para =~ m/^[a-z ]+:/ ) {
map {
chomp;
my ($attrib, $val) = split(/: /, $_);
print $opt_fh "$attrib:$val\n";
} split(/; /, $para);
$para = <>;
chomp;
}
my ($desc) = $para =~ m/^([^?.]+)/;
print $opt_fh "desc:$desc.\n";
close $opt_fh;
}
my ($desc) = $para =~ m/^([^?.]+)/;
print $opt_fh "desc:$desc.\n";
close $opt_fh;
}
last;
'
)
}
last;
'
}
for opt_spec in $(ls "$TMPDIR/po/"); do
_eval_po() {
for opt_spec in $(ls "$PO_DIR"); do
local opt=""
local default_val=""
local neg=0
@@ -175,13 +196,13 @@ parse_options() {
fi
;;
*)
echo "Invalid attribute in $TMPDIR/po/$opt_spec: $line" >&2
echo "Invalid attribute in $PO_DIR/$opt_spec: $line" >&2
exit 1
esac
done < "$TMPDIR/po/$opt_spec"
done < "$PO_DIR/$opt_spec"
if [ -z "$opt" ]; then
echo "No long attribute in option spec $TMPDIR/po/$opt_spec" >&2
echo "No long attribute in option spec $PO_DIR/$opt_spec" >&2
exit 1
fi
@@ -194,69 +215,133 @@ parse_options() {
eval "OPT_${opt}"="$default_val"
done
}
for opt; do
if [ $# -eq 0 ]; then
break # no more opts
_parse_config_files() {
for config_file in "/etc/percona-toolkit/percona-toolkit.conf" "/etc/percona-toolkit/$TOOL.conf" "$HOME/.percona-toolkit.conf" "$HOME/.$TOOL.conf"
do
test -f "$config_file" || continue
while read config_opt; do
echo "$config_opt" | grep '^[ ]*[^#]' >/dev/null 2>&1 || continue
config_opt="$(echo "$config_opt" | sed -e 's/^[ ]*//' -e 's/[ ]*\$//' -e 's/[ ]*=[ ]*/=/' -e 's/[ ]*#.*$//')"
if ! [ "$HAVE_EXT_ARGV" ]; then
config_opt="--$config_opt"
fi
_parse_command_line "$config_opt"
done < "$config_file"
HAVE_EXT_ARGV="" # reset for each file
done
}
_parse_command_line() {
local opt=""
local val=""
local next_opt_is_val=""
local opt_is_ok=""
local opt_is_negated=""
local real_opt=""
local required_arg=""
for opt in "$@"; do
if [ "$opt" = "--" -o "$opt" = "----" ]; then
HAVE_EXT_ARGV=1
continue
fi
opt=$1
if [ "$opt" = "--" ]; then
shift
EXT_ARGV="$@"
break
fi
shift
if [ $(expr "$opt" : "-") -eq 0 ]; then
if [ -z "$ARGV" ]; then
ARGV="$opt"
if [ "$HAVE_EXT_ARGV" ]; then
if [ "$EXT_ARGV" ]; then
EXT_ARGV="$EXT_ARGV $opt"
else
ARGV="$ARGV $opt"
EXT_ARGV="$opt"
fi
continue
fi
local real_opt="$opt"
if $(echo $opt | grep -q '^--no-'); then
neg=1
opt=$(echo $opt | sed 's/^--no-//')
else
neg=0
opt=$(echo $opt | sed 's/^-*//')
fi
if [ -f "$TMPDIR/po/$opt" ]; then
spec="$TMPDIR/po/$opt"
else
spec=$(grep "^short form:-$opt\$" "$TMPDIR"/po/* | cut -d ':' -f 1)
if [ -z "$spec" ]; then
OPT_ERRS=$(($OPT_ERRS + 1))
echo "Unknown option: $real_opt" >&2
continue
fi
fi
local required_arg=$(cat $spec | awk -F: '/^type:/{print $2}')
if [ -n "$required_arg" ]; then
if [ $# -eq 0 ]; then
if [ "$next_opt_is_val" ]; then
next_opt_is_val=""
if [ $# -eq 0 ] || [ $(expr "$opt" : "-") -eq 1 ]; then
OPT_ERRS=$(($OPT_ERRS + 1))
echo "$real_opt requires a $required_arg argument" >&2
continue
else
val="$1"
shift
fi
val="$opt"
opt_is_ok=1
else
if [ $neg -eq 0 ]; then
val="yes"
if [ $(expr "$opt" : "-") -eq 0 ]; then
if [ -z "$ARGV" ]; then
ARGV="$opt"
else
ARGV="$ARGV $opt"
fi
continue
fi
real_opt="$opt"
if $(echo $opt | grep -q '^--no-'); then
opt_is_negated=1
opt=$(echo $opt | sed 's/^--no-//')
else
val="no"
opt_is_negated=""
opt=$(echo $opt | sed 's/^-*//')
fi
if $(echo $opt | grep '^[a-z-][a-z-]*=' >/dev/null 2>&1); then
val="$(echo $opt | awk -F= '{print $2}')"
opt="$(echo $opt | awk -F= '{print $1}')"
fi
if [ -f "$TMPDIR/po/$opt" ]; then
spec="$TMPDIR/po/$opt"
else
spec=$(grep "^short form:-$opt\$" "$TMPDIR"/po/* | cut -d ':' -f 1)
if [ -z "$spec" ]; then
OPT_ERRS=$(($OPT_ERRS + 1))
echo "Unknown option: $real_opt" >&2
continue
fi
fi
required_arg=$(cat "$spec" | awk -F: '/^type:/{print $2}')
if [ "$required_arg" ]; then
if [ "$val" ]; then
opt_is_ok=1
else
next_opt_is_val=1
fi
else
if [ "$val" ]; then
OPT_ERRS=$(($OPT_ERRS + 1))
echo "Option $real_opt does not take a value" >&2
continue
fi
if [ "$opt_is_negated" ]; then
val=""
else
val="yes"
fi
opt_is_ok=1
fi
fi
opt=$(cat $spec | grep '^long:' | cut -d':' -f2 | sed 's/-/_/g' | tr [:lower:] [:upper:])
if [ "$opt_is_ok" ]; then
opt=$(cat "$spec" | grep '^long:' | cut -d':' -f2 | sed 's/-/_/g' | tr [:lower:] [:upper:])
eval "OPT_$opt"="$val"
eval "OPT_$opt"="'$val'"
opt=""
val=""
next_opt_is_val=""
opt_is_ok=""
opt_is_negated=""
real_opt=""
required_arg=""
fi
done
}