bashrc: include branch name on PS1

This is just a simple hack to have the branch name when entering in a
.git folder. It works in a way to avoid start working on something in
the wrong branch :)

vim-airline and vim-fugitive does help as well..

Failure: the branch name is only set when entering in the git folder...
if the branch is changed after that, it will not update.

1 files changed, 22 insertions, 4 deletions

diff --git a/bashrc b/bashrc
index 2dc5332..edfcb43 100644
--- a/bashrc
+++ b/bashrc
@@ -39,20 +39,38 @@ fi
 # ---------------------------------------------------------------------------- #
 # ----- New stuff usually goes here :-) -------------------------------------- #
 # ---------------------------------------------------------------------------- #
+function get_git_branch()
+{
+    if [ -d "$PWD/.git" ]
+    then
+        branch=`cat $PWD/.git/HEAD | cut -d'/' -f 3`
+        eval "$1='$branch'"
+    fi
+}
+
 PATH=$HOME/.local/bin:$PATH
 PATH=$PATH:$HOME/scripts
 EDITOR=vim
 BROWSER=firefox
 #LS_COLORS='di=1:fi=0:ln=31:pi=5:so=5:bd=5:cd=5:or=31:*.deb=90'
 
+PROMPT_COMMAND='
+get_git_branch branch
+if [ "$branch" ]
+then
+    branch="($branch) "
+fi
+default="\[$txtwht\] \W \[$txtylw\]$branch"
 if [ `whoami` == "root" ]; then
-        PS1="\[$bldred\](\h)\[$txtwht\] \W\[$bldred\] #\[$txtwht\]"
+        PS1="\[$bldred\](\h)$default\[$bldred\]# \[$txtwht\]"
 else
     if [ $UNDER_JHBUILD ]; then
-        PS1="\[$bldpur\](jhbuild)\[$txtwht\] \W\[$bldgrn\] $\[$txtwht\]"
+        PS1="\[$bldpur\](jhbuild)$default\[$bldgrn\]$ \[$txtwht\]"
     else
-        PS1="\[$bldgrn\](\h)\[$txtwht\] \W\[$bldgrn\] $\[$txtwht\]"
+        PS1="\[$bldgrn\](\h)$default\[$bldgrn\]$ \[$txtwht\]"
     fi
 fi
-
+unset branch
+unset default
+'
 # vim:ts=4:sw=4