From c638f9d7fd2ad5025bd5a44ceee2f4c0872b6a8a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20Chr=C3=A9tien?= <chretien@lirmm.fr>
Date: Sat, 6 Jul 2013 19:12:21 +0900
Subject: [PATCH] Get number of lines changed for Git

---
 lib/git.zsh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/git.zsh b/lib/git.zsh
index 7329011a2..adbc2518c 100644
--- a/lib/git.zsh
+++ b/lib/git.zsh
@@ -5,6 +5,15 @@ function git_prompt_info() {
   echo "$ZSH_THEME_GIT_PROMPT_PREFIX${ref#refs/heads/}$(parse_git_dirty)$ZSH_THEME_GIT_PROMPT_SUFFIX"
 }
 
+# Get the number of lines changed between the index and the working tree
+function git_changes_info() {
+  changes=$(command git diff --numstat 2>/dev/null) || return
+  if [[ -z "$changes" ]]; then
+    return
+  fi
+  changes=$(echo $changes | awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d/-%d", plus, minus)}')
+  echo "$ZSH_THEME_GIT_CHANGES_PREFIX${changes}$ZSH_THEME_GIT_CHANGES_SUFFIX"
+}
 
 # Checks if working tree is dirty
 parse_git_dirty() {