From 8b96472116db7167aca29c63204e2d0d4c8b7985 Mon Sep 17 00:00:00 2001
From: Tony Duckles <tony@nynim.org>
Date: Sat, 22 Dec 2012 12:52:06 -0600
Subject: [PATCH] .bashrc: Use __git_ps1() in $PS1

Use __git_ps1() to display current branch info in bash prompt (PS1).
* Never show this for the $HOME (dotfiles) repo since it would get
  obnoxious.
* Check a (custom) `git config` variable to allow repo-specific
  exclusion of __git_ps1() handling.
---
 .bashrc | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/.bashrc b/.bashrc
index 3ba2059..d1c375d 100644
--- a/.bashrc
+++ b/.bashrc
@@ -192,7 +192,17 @@ prompt_compact() {
 }
 
 prompt_color() {
-    PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_P}\[\033[0m\] "
+    # If git and the git bash_completion scripts are installed, use __git_ps1() to show current branch info.
+    # Never show branch info for $HOME (dotfiles) repo.
+    # Use the following to exclude a given repo: `git config --local --bool --add bash.hidePrompt true`
+    if [ -n "$(type -P git)" -a "$(type -t __git_ps1)" = "function" ]; then
+        PS_GIT='$(test -n "$(__git_ps1 %s)" &&
+                  test "$(git rev-parse --show-toplevel)" != "$HOME" &&
+                  test "$(git config --bool bash.hidePrompt)" != "true" &&
+                  __git_ps1 "{\[\033[0;100m\]%s\[\033[0;90m\]}")'
+        export GIT_PS1_SHOWDIRTYSTATE=1
+    fi
+    PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_GIT}${PS_P}\[\033[0m\] "
     PS2="> "
 }
 
-- 
2.47.1