Merge pull request #75 from burl/master

added node module/segment that displays version from package.json in …

README.md

@@ -154,7 +154,7 @@ Usage of powerline-go:
     	 (default "patched")
   -modules string
     	 The list of modules to load, separated by ','
-    	 (valid choices: aws, cwd, docker, dotenv, exit, git, gitlite, hg, host, jobs, perlbrew, perms, root, shell-var, ssh, time, user, venv)
+    	 (valid choices: aws, cwd, docker, dotenv, exit, git, gitlite, hg, host, jobs, perlbrew, perms, root, shell-var, ssh, time, user, venv, node)
     	 (default "venv,user,host,ssh,cwd,perms,git,hg,jobs,exit,root")
   -newline
     	 Show the prompt on a new line
@@ -167,7 +167,7 @@ Usage of powerline-go:
     	 Use '~' for your home dir. You may need to escape this character to avoid shell substitution.
   -priority string
     	 Segments sorted by priority, if not enough space exists, the least priorized segments are removed first. Separate with ','
-    	 (valid choices: aws, cwd, cwd-path, docker, exit, git-branch, git-status, hg, host, jobs, perlbrew, perms, root, ssh, time, user, venv)
+    	 (valid choices: aws, cwd, cwd-path, docker, exit, git-branch, git-status, hg, host, jobs, perlbrew, perms, root, ssh, time, user, venv, node)
     	 (default "root,cwd,user,host,ssh,perms,git-branch,git-status,hg,jobs,exit,cwd-path")
   -shell string
     	 Set this to your shell type

defaults.go

@@ -152,6 +152,9 @@ var themes = map[string]Theme{
 		ShellVarFg: 52,
 		ShellVarBg: 11,
 
+		NodeFg: 15,
+		NodeBg: 40,
+
 		HostnameColorizedFgMap: map[uint8]uint8{
 			0:   250,
 			1:   250,

main.go

@@ -107,6 +107,7 @@ var modules = map[string](func(*powerline)){
 	"ssh":       segmentSsh,
 	"termtitle": segmentTermTitle,
 	"time":      segmentTime,
+	"node":      segmentNode,
 	"user":      segmentUser,
 	"venv":      segmentVirtualEnv,
 	"vgo":       segmentVirtualGo,

segment-node.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"os"
+)
+
+const pkgfile = "./package.json"
+
+type packageJSON struct {
+	Version string `json:"version"`
+}
+
+func segmentNode(p *powerline) {
+	stat, err := os.Stat(pkgfile)
+	if err == nil && !stat.IsDir() {
+		pkg := packageJSON{"!"}
+		raw, err := ioutil.ReadFile(pkgfile)
+		if err == nil {
+			json.Unmarshal(raw, &pkg)
+		}
+		p.appendSegment("node-version", segment{
+			content:    pkg.Version + " \u2B22",
+			foreground: p.theme.NodeFg,
+			background: p.theme.NodeBg,
+		})
+	}
+}

themes.go

@@ -102,4 +102,7 @@ type Theme struct {
 
 	ShellVarFg uint8
 	ShellVarBg uint8
+
+	NodeFg uint8
+	NodeBg uint8
 }

themes/default.json

@@ -54,6 +54,8 @@
   "TimeBg": 236,
   "ShellVarFg": 52,
   "ShellVarBg": 11,
+  "NodeFg": 15,
+  "NodeBg": 40,
   "HostnameColorizedFgMap": {
     "0": 250,
     "1": 250,