Extended GIT Information in bash PS1
This will generate shell similar to this :
Multiline version:
┌──┤ greg: ~/dev/discovery/discovery-agent │ master ≡ !1 +2 -2 ≡ 2 weeks ago └── λ
Format `branch ≡ changes additions deletions ≡ last commit`
Example `master ≡ !1 +2 -2 ≡ 2 weeks ago`
Since we are interested in interactive shells only we will edit `/etc/profile` and add the following
# Get branch name
parse_git_branch() {
# git branch | grep -Po '(?<=\*\s)(.*)'
local branch=$(git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \1/')
# When there is no initial commit, git branch will not return any branches, use a fallback method
if [ -z "$branch" ]; then
branch=$(git status | grep -iPo '(?<=On branch\s)(.*)')
fi
echo $branch
}
parse_git_status() {
# changes to existing files
# 0 = Changed Files, 1 = Additions, 2 = Deletions
local gitstat=$(git diff --shortstat 2> /dev/null | grep -Po '\d')
if [ -z "$gitstat" ]; then
gitstat="0 0 0"
fi
# replate \n with blanks
gitstat=$(echo "$gitstat" | tr '\n' ' ')
# untracted(??) or added(A) files
local gitfiles=$(git status --untracked-files=all -s 2> /dev/null | grep -E '??|A' | wc -l)
echo "$gitstat $gitfiles"
}
parse_git_hascommit() {
val=$(git log 2> /dev/null | grep -iPo 'does not have')
echo "result :: $val"
if [ -z "$val" ]; then
echo 0
return 0
fi
echo 1
}
git_status_ps1() {
green_light="\e[38;5;82m"
red="\e[91m"
blue="\e[34m"
reset="\e[0m"
inrepo=$(git rev-parse --is-inside-work-tree 2>/dev/null)
if [ -z "$inrepo" ]; then
exit
fi
#hascommit=$(parse_git_hascommit)
#echo "has :: $hascommit"i
# can't get time unless we have a commit
# capture error 'fatal: your current branch 'master' does not have any commits yet' and don't display time
gittime=$(git log -1 --format=%cr 2> /dev/null)
gitstat=$(parse_git_status)
IFS=' ' read -r -a array <<< $gitstat
if [ -z "${array[0]}" ]; then
array[0]=0
array[1]=0
array[2]=0
fi
branch_color=$green_light
if [ "${array[0]}" -gt "0" ]; then
branch_color=$red
fi
if [ -z "$gittime" ]; then
gittime="never"
fi
GIT_PS1="$branch_color$(parse_git_branch) $reset ≡ $green_light ~${array[3]} !${array[0]} +${array[1]} $red-${array[2]} $reset ≡ $gittime"
echo -e $GIT_PS1
}
PS1='┌──┤ \[\033[01;32m\]\u:\[\033[00m\] '
PS1=$PS1'\[\033[01;34m\]\w\e[0m │ $(git_status_ps1)\n└── λ '