Today at ActionHack, I was showing off Fish Shell to @geoffreyd. I was showing off all the cool fish prompt features I had, but pointed out that my git branch portion needed some beefing up, as it didn't show the current mode nor commit shas when not in a branch.
Knowing that git came with a
__git_ps1() function for Bash that achieves this, I decided to port it to Fish tonight.
My shell scripting fu is pretty weak but as far as I can tell it works great and I am now using it in my shell.
Here is the Fish function (I’ve kept the function name the same as the bash one):
function __git_ps1 set -l g (git rev-parse --git-dir ^/dev/null) if [ -n "$g" ] set -l r "" set -l b "" if [ -d "$g/../.dotest" ] if [ -f "$g/../.dotest/rebasing" ] set r "|REBASE" elseif [ -f "$g/../.dotest/applying" ] set r "|AM" else set r "|AM/REBASE" end set b (git symbolic-ref HEAD ^/dev/null) elseif [ -f "$g/.dotest-merge/interactive" ] set r "|REBASE-i" set b (cat "$g/.dotest-merge/head-name") elseif [ -d "$g/.dotest-merge" ] set r "|REBASE-m" set b (cat "$g/.dotest-merge/head-name") elseif [ -f "$g/MERGE_HEAD" ] set r "|MERGING" set b (git symbolic-ref HEAD ^/dev/null) else if [ -f "$g/BISECT_LOG" ] set r "|BISECTING" end set b (git symbolic-ref HEAD ^/dev/null) if [ -z $b ] set b (git describe --exact-match HEAD ^/dev/null) if [ -z $b ] set b (cut -c1-7 "$g/HEAD") set b "$b..." end end end if not test $argv set argv " (%s)" end set b (echo $b | sed -e 's|^refs/heads/||') printf $argv "$b$r" ^/dev/null end end