mirror of
https://github.com/ohmyzsh/ohmyzsh.git
synced 2024-12-27 14:51:58 +00:00
5a11228e93
Using the upstream git completion and prompt stuff. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
290 lines
8 KiB
Bash
290 lines
8 KiB
Bash
# bash/zsh git prompt support
|
|
#
|
|
# Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
|
|
# Distributed under the GNU General Public License, version 2.0.
|
|
#
|
|
# This script allows you to see the current branch in your prompt.
|
|
#
|
|
# To enable:
|
|
#
|
|
# 1) Copy this file to somewhere (e.g. ~/.git-prompt.sh).
|
|
# 2) Add the following line to your .bashrc/.zshrc:
|
|
# source ~/.git-prompt.sh
|
|
# 3) Change your PS1 to also show the current branch:
|
|
# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
|
|
# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
|
|
#
|
|
# The argument to __git_ps1 will be displayed only if you are currently
|
|
# in a git repository. The %s token will be the name of the current
|
|
# branch.
|
|
#
|
|
# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
|
|
# unstaged (*) and staged (+) changes will be shown next to the branch
|
|
# name. You can configure this per-repository with the
|
|
# bash.showDirtyState variable, which defaults to true once
|
|
# GIT_PS1_SHOWDIRTYSTATE is enabled.
|
|
#
|
|
# You can also see if currently something is stashed, by setting
|
|
# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
|
|
# then a '$' will be shown next to the branch name.
|
|
#
|
|
# If you would like to see if there're untracked files, then you can set
|
|
# GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked
|
|
# files, then a '%' will be shown next to the branch name.
|
|
#
|
|
# If you would like to see the difference between HEAD and its upstream,
|
|
# set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates you are behind, ">"
|
|
# indicates you are ahead, "<>" indicates you have diverged and "="
|
|
# indicates that there is no difference. You can further control
|
|
# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated list
|
|
# of values:
|
|
#
|
|
# verbose show number of commits ahead/behind (+/-) upstream
|
|
# legacy don't use the '--count' option available in recent
|
|
# versions of git-rev-list
|
|
# git always compare HEAD to @{upstream}
|
|
# svn always compare HEAD to your SVN upstream
|
|
#
|
|
# By default, __git_ps1 will compare HEAD to your SVN upstream if it can
|
|
# find one, or @{upstream} otherwise. Once you have set
|
|
# GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
|
|
# setting the bash.showUpstream config variable.
|
|
|
|
# __gitdir accepts 0 or 1 arguments (i.e., location)
|
|
# returns location of .git repo
|
|
__gitdir ()
|
|
{
|
|
# Note: this function is duplicated in git-completion.bash
|
|
# When updating it, make sure you update the other one to match.
|
|
if [ -z "${1-}" ]; then
|
|
if [ -n "${__git_dir-}" ]; then
|
|
echo "$__git_dir"
|
|
elif [ -n "${GIT_DIR-}" ]; then
|
|
test -d "${GIT_DIR-}" || return 1
|
|
echo "$GIT_DIR"
|
|
elif [ -d .git ]; then
|
|
echo .git
|
|
else
|
|
git rev-parse --git-dir 2>/dev/null
|
|
fi
|
|
elif [ -d "$1/.git" ]; then
|
|
echo "$1/.git"
|
|
else
|
|
echo "$1"
|
|
fi
|
|
}
|
|
|
|
# stores the divergence from upstream in $p
|
|
# used by GIT_PS1_SHOWUPSTREAM
|
|
__git_ps1_show_upstream ()
|
|
{
|
|
local key value
|
|
local svn_remote svn_url_pattern count n
|
|
local upstream=git legacy="" verbose=""
|
|
|
|
svn_remote=()
|
|
# get some config options from git-config
|
|
local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
|
|
while read -r key value; do
|
|
case "$key" in
|
|
bash.showupstream)
|
|
GIT_PS1_SHOWUPSTREAM="$value"
|
|
if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
|
|
p=""
|
|
return
|
|
fi
|
|
;;
|
|
svn-remote.*.url)
|
|
svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
|
|
svn_url_pattern+="\\|$value"
|
|
upstream=svn+git # default upstream is SVN if available, else git
|
|
;;
|
|
esac
|
|
done <<< "$output"
|
|
|
|
# parse configuration values
|
|
for option in ${GIT_PS1_SHOWUPSTREAM}; do
|
|
case "$option" in
|
|
git|svn) upstream="$option" ;;
|
|
verbose) verbose=1 ;;
|
|
legacy) legacy=1 ;;
|
|
esac
|
|
done
|
|
|
|
# Find our upstream
|
|
case "$upstream" in
|
|
git) upstream="@{upstream}" ;;
|
|
svn*)
|
|
# get the upstream from the "git-svn-id: ..." in a commit message
|
|
# (git-svn uses essentially the same procedure internally)
|
|
local svn_upstream=($(git log --first-parent -1 \
|
|
--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
|
|
if [[ 0 -ne ${#svn_upstream[@]} ]]; then
|
|
svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
|
|
svn_upstream=${svn_upstream%@*}
|
|
local n_stop="${#svn_remote[@]}"
|
|
for ((n=1; n <= n_stop; n++)); do
|
|
svn_upstream=${svn_upstream#${svn_remote[$n]}}
|
|
done
|
|
|
|
if [[ -z "$svn_upstream" ]]; then
|
|
# default branch name for checkouts with no layout:
|
|
upstream=${GIT_SVN_ID:-git-svn}
|
|
else
|
|
upstream=${svn_upstream#/}
|
|
fi
|
|
elif [[ "svn+git" = "$upstream" ]]; then
|
|
upstream="@{upstream}"
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# Find how many commits we are ahead/behind our upstream
|
|
if [[ -z "$legacy" ]]; then
|
|
count="$(git rev-list --count --left-right \
|
|
"$upstream"...HEAD 2>/dev/null)"
|
|
else
|
|
# produce equivalent output to --count for older versions of git
|
|
local commits
|
|
if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
|
|
then
|
|
local commit behind=0 ahead=0
|
|
for commit in $commits
|
|
do
|
|
case "$commit" in
|
|
"<"*) ((behind++)) ;;
|
|
*) ((ahead++)) ;;
|
|
esac
|
|
done
|
|
count="$behind $ahead"
|
|
else
|
|
count=""
|
|
fi
|
|
fi
|
|
|
|
# calculate the result
|
|
if [[ -z "$verbose" ]]; then
|
|
case "$count" in
|
|
"") # no upstream
|
|
p="" ;;
|
|
"0 0") # equal to upstream
|
|
p="=" ;;
|
|
"0 "*) # ahead of upstream
|
|
p=">" ;;
|
|
*" 0") # behind upstream
|
|
p="<" ;;
|
|
*) # diverged from upstream
|
|
p="<>" ;;
|
|
esac
|
|
else
|
|
case "$count" in
|
|
"") # no upstream
|
|
p="" ;;
|
|
"0 0") # equal to upstream
|
|
p=" u=" ;;
|
|
"0 "*) # ahead of upstream
|
|
p=" u+${count#0 }" ;;
|
|
*" 0") # behind upstream
|
|
p=" u-${count% 0}" ;;
|
|
*) # diverged from upstream
|
|
p=" u+${count#* }-${count% *}" ;;
|
|
esac
|
|
fi
|
|
|
|
}
|
|
|
|
|
|
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
|
|
# returns text to add to bash PS1 prompt (includes branch name)
|
|
__git_ps1 ()
|
|
{
|
|
local g="$(__gitdir)"
|
|
if [ -n "$g" ]; then
|
|
local r=""
|
|
local b=""
|
|
if [ -f "$g/rebase-merge/interactive" ]; then
|
|
r="|REBASE-i"
|
|
b="$(cat "$g/rebase-merge/head-name")"
|
|
elif [ -d "$g/rebase-merge" ]; then
|
|
r="|REBASE-m"
|
|
b="$(cat "$g/rebase-merge/head-name")"
|
|
else
|
|
if [ -d "$g/rebase-apply" ]; then
|
|
if [ -f "$g/rebase-apply/rebasing" ]; then
|
|
r="|REBASE"
|
|
elif [ -f "$g/rebase-apply/applying" ]; then
|
|
r="|AM"
|
|
else
|
|
r="|AM/REBASE"
|
|
fi
|
|
elif [ -f "$g/MERGE_HEAD" ]; then
|
|
r="|MERGING"
|
|
elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
|
|
r="|CHERRY-PICKING"
|
|
elif [ -f "$g/BISECT_LOG" ]; then
|
|
r="|BISECTING"
|
|
fi
|
|
|
|
b="$(git symbolic-ref HEAD 2>/dev/null)" || {
|
|
|
|
b="$(
|
|
case "${GIT_PS1_DESCRIBE_STYLE-}" in
|
|
(contains)
|
|
git describe --contains HEAD ;;
|
|
(branch)
|
|
git describe --contains --all HEAD ;;
|
|
(describe)
|
|
git describe HEAD ;;
|
|
(* | default)
|
|
git describe --tags --exact-match HEAD ;;
|
|
esac 2>/dev/null)" ||
|
|
|
|
b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
|
|
b="unknown"
|
|
b="($b)"
|
|
}
|
|
fi
|
|
|
|
local w=""
|
|
local i=""
|
|
local s=""
|
|
local u=""
|
|
local c=""
|
|
local p=""
|
|
|
|
if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
|
|
if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
|
|
c="BARE:"
|
|
else
|
|
b="GIT_DIR!"
|
|
fi
|
|
elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
|
|
if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
|
|
if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
|
|
git diff --no-ext-diff --quiet --exit-code || w="*"
|
|
if git rev-parse --quiet --verify HEAD >/dev/null; then
|
|
git diff-index --cached --quiet HEAD -- || i="+"
|
|
else
|
|
i="#"
|
|
fi
|
|
fi
|
|
fi
|
|
if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
|
|
git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
|
|
fi
|
|
|
|
if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
|
|
if [ -n "$(git ls-files --others --exclude-standard)" ]; then
|
|
u="%"
|
|
fi
|
|
fi
|
|
|
|
if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
|
|
__git_ps1_show_upstream
|
|
fi
|
|
fi
|
|
|
|
local f="$w$i$s$u"
|
|
printf -- "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
|
|
fi
|
|
}
|