fix: node v4 support works

fix: 'install latest' works
fix: current version arch works

src/nvm.go

@@ -120,11 +120,11 @@ func update() {
 }
 
 func CheckVersionExceedsLatest(version string) bool{
-    content := web.GetRemoteTextFile("http://nodejs.org/dist/latest/SHASUMS.txt")
+    content := web.GetRemoteTextFile("http://nodejs.org/dist/latest/SHASUMS256.txt")
     re := regexp.MustCompile("node-v(.+)+msi")
     reg := regexp.MustCompile("node-v|-x.+")
 	latest := reg.ReplaceAllString(re.FindString(content),"")
-	
+
 	if version <= latest {
 		return false
 	} else {
@@ -155,6 +155,14 @@ func install(version string, cpuarch string) {
     cpuarch = arch.Validate(cpuarch)
   }
   
+  // If user specifies "latest" version, find out what version is
+  if version == "latest" {
+    content := web.GetRemoteTextFile("http://nodejs.org/dist/latest/SHASUMS256.txt")
+    re := regexp.MustCompile("node-v(.+)+msi")
+    reg := regexp.MustCompile("node-v|-x.+")
+    version = reg.ReplaceAllString(re.FindString(content),"")
+  }
+
   if CheckVersionExceedsLatest(version) {
 	fmt.Println("Node.js v"+version+" is not yet released or available.")
 	return
@@ -165,14 +173,6 @@ func install(version string, cpuarch string) {
     return
   }
 
-  // If user specifies "latest" version, find out what version is
-  if version == "latest" {
-    content := web.GetRemoteTextFile("http://nodejs.org/dist/latest/SHASUMS.txt")
-    re := regexp.MustCompile("node-v(.+)+msi")
-    reg := regexp.MustCompile("node-v|-x.+")
-    version = reg.ReplaceAllString(re.FindString(content),"")
-  }
-
   // Check to see if the version is already installed
   if !node.IsVersionInstalled(env.root,version,cpuarch) {
 

src/nvm/node/node.go

@@ -25,17 +25,21 @@ func GetCurrentVersion() (string, string) {
     cmd := exec.Command("node","-p","console.log(process.execPath)")
     str, _ := cmd.Output()
     file := strings.Trim(regexp.MustCompile("undefined").ReplaceAllString(string(str),"")," \n\r")
-	bit := arch.Bit(file)
-	if (bit == "?"){
-		cmd := exec.Command("node", "-e", "console.log(process.arch)" )
-		str, err := cmd.Output()
-		if (string(str) == "x64") {
-			bit := "64"
-		} else {
-			bit := "32"
-		}
-	}
-	return v, bit
+    bit := arch.Bit(file)
+    if (bit == "?"){
+      cmd := exec.Command("node", "-e", "console.log(process.arch)" )
+      str, err := cmd.Output()
+      if (err == nil) {
+        if (string(str) == "x64") {
+          bit = "64"
+        } else {
+          bit = "32"
+        }
+      } else {
+        return v, "Unknown"
+      }
+    }
+    return v, bit
   }
   return "Unknown",""
 }

src/nvm/web/web.go

@@ -142,6 +142,23 @@ func GetRemoteTextFile(url string) string {
   return ""
 }
 
+func IsNode64bitAvailable(v string) bool {
+  if v == "latest" {
+    return true
+  }
+
+  // Anything below version 8 doesn't have a 64 bit version
+  vers := strings.Fields(strings.Replace(v,"."," ",-1))
+  main, _ := strconv.ParseInt(vers[0],0,0)
+  minor, _ := strconv.ParseInt(vers[1],0,0)
+  if main == 0 && minor < 8 {
+    return false
+  }
+
+  // TODO: fixme. Assume a 64 bit version exists
+  return true
+}
+
 func getNodeUrl (v string,  vpre string) string {
   url := "http://nodejs.org/dist/v"+v+"/" + vpre + "/node.exe"
   // Check online to see if a 64 bit version exists