Merge pull request #127 from dritter/go_prompt

Adding Go version segment.

README.md

@@ -73,6 +73,7 @@ The segments that are currently available are:
 * [aws](#aws) - The current AWS profile, if active.
 * [context](#context) - Your username and host.
 * [dir](#dir) - Your current working directory.
+* **go_version** - Show the current GO version.
 * **history** - The command number for the current line.
 * [ip](#ip) - Shows the current IP address.
 * **load** - Your machines 5 minute load average.

powerlevel9k.zsh-theme

@@ -647,6 +647,16 @@ prompt_dir() {
   "$1_prompt_segment" "$0" "blue" "$DEFAULT_COLOR" "$(print_icon 'HOME_ICON')$current_path"
 }
 
+# GO-prompt
+prompt_go_version() {
+  local go_version
+  go_version=$(go version 2>&1 | grep -oe "^go[0-9.]*")
+
+  if [[ -n "$go_version" ]]; then
+    "$1_prompt_segment" "$0" "green" "255" "$go_version"
+  fi
+}
+
 # Command number (in local history)
 prompt_history() {
   "$1_prompt_segment" "$0" "244" "$DEFAULT_COLOR" '%h'