ohmyzsh/plugins/branch/branch.plugin.zsh

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# Branch: displays the current Git or Mercurial branch fast.
# Victor Torres <vpaivatorres@gmail.com>
# Oct 2, 2015
function branch_prompt_info() {
# Defines path as current directory
local current_dir=$PWD
# While current path is not root path
while [[ $current_dir != '/' ]]
do
# Git repository
if [[ -d "${current_dir}/.git" ]]
then
echo '±' ${"$(<"$current_dir/.git/HEAD")"##*/}
return;
fi
# Mercurial repository
if [[ -d "${current_dir}/.hg" ]]
then
echo '☿' $(<"$current_dir/.hg/branch")
return;
fi
# Defines path as parent directory and keeps looking for :)
current_dir="${current_dir:h}"
done
}