[zsh] Update shell init: rc

zsh/func/init_rc_configure_prompt

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# Eryn Wells <eryn@erynwells.me>
+
+function init_rc_configure_prompt
+{
+    local theme=$1
+    if [[ -z "$1" ]]; then
+        theme=loquacious
+    fi
+
+    shell-log -l debug 'Configuring vcs_info'
+
+    autoload -U add-zsh-hook
+    autoload -Uz vcs_info
+
+    zstyle ':vcs_info:*' disable p4 bzr cdv darcs mtn svk tla cvs svn
+    zstyle ':vcs_info:*' enable git
+    zstyle ':vcs_info:git:general:*' formats '%b'
+
+    # Export the current Git branch before every prompt.
+    function export_gitbranch {
+        vcs_info general
+        if [[ "$gitbranches[1]" != "${vcs_info_msg_0_}" ]]; then
+            export gitbranches=(${vcs_info_msg_0_} $gitbranches[1,4])
+        fi
+        export gitbranch=${vcs_info_msg_0_}
+    }
+
+    add-zsh-hook precmd export_gitbranch
+
+    shell-log "Configuring prompt with '$theme' theme"
+    autoload -U promptinit
+    promptinit
+    prompt $theme
+}
+
+init_rc_configure_prompt "$@"