513 lines
17 KiB
Plaintext
513 lines
17 KiB
Plaintext
# bash/zsh git prompt support
|
|
#
|
|
# Copyright (C) 2013 David Xu
|
|
# Based on the earlier work by 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,
|
|
# posh-git style
|
|
#
|
|
# 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
|
|
# 3a) Change your PS1 to call __git_ps1 as
|
|
# command-substitution:
|
|
# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
|
|
# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
|
|
# the optional argument will be used as format string.
|
|
# 3b) Alternatively, if you are using bash, __git_ps1 can be
|
|
# used for PROMPT_COMMAND with two parameters, <pre> and
|
|
# <post>, which are strings you would put in $PS1 before
|
|
# and after the status string generated by the git-prompt
|
|
# machinery. e.g.
|
|
# PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
|
|
# will show username, at-sign, host, colon, cwd, then
|
|
# various status string, followed by dollar and SP, as
|
|
# your prompt.
|
|
# Optionally, you can supply a third argument with a printf
|
|
# format string to finetune the output of the branch status
|
|
#
|
|
# 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.
|
|
#
|
|
# __gitdir accepts 0 or 1 arguments (i.e., location)
|
|
# returns location of .git repo
|
|
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
|
|
# when called from PS1 using command substitution
|
|
# in this mode it prints text to add to bash PS1 prompt (includes branch name)
|
|
#
|
|
# __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc)
|
|
# in that case it _sets_ PS1. The arguments are parts of a PS1 string.
|
|
# when two arguments are given, the first is prepended and the second appended
|
|
# to the state string when assigned to PS1.
|
|
# The optional third parameter will be used as printf format string to further
|
|
# customize the output of the git-status string.
|
|
#
|
|
# CONFIG OPTIONS
|
|
# ==============
|
|
#
|
|
# This script should work out of the box. Available options are set through
|
|
# your git configuration files. This allows you to control the prompt display on a
|
|
# per-repository basis. These files are most likely called `.gitconfig`; an
|
|
# example illustrating the syntax of these files can be found at
|
|
# http://git-scm.com/docs/git-config#_example.
|
|
# ```
|
|
# bash.describeStyle
|
|
# bash.enableFileStatus
|
|
# bash.enableGitStatus
|
|
# bash.showStatusWhenZero
|
|
# bash.showUpstream
|
|
# ```
|
|
#
|
|
# bash.describeStyle
|
|
# ------------------
|
|
#
|
|
# This option controls if you would like to see more information about the
|
|
# identity of commits checked out as a detached `HEAD`. This is also controlled
|
|
# by the legacy environment variable `GIT_PS1_DESCRIBESTYLE`.
|
|
#
|
|
# Option | Description
|
|
# -------- | -----------
|
|
# contains | relative to newer annotated tag `(v1.6.3.2~35)`
|
|
# branch | relative to newer tag or branch `(master~4)`
|
|
# describe | relative to older annotated tag `(v1.6.3.1-13-gdd42c2f)`
|
|
# default | exactly matching tag
|
|
#
|
|
# bash.enableFileStatus
|
|
# ---------------------
|
|
#
|
|
# Option | Description
|
|
# ------ | -----------
|
|
# true | _Default_. The script will query for all file indicators every time.
|
|
# false | No file indicators will be displayed. The script will not query
|
|
# upstream for differences. Branch color-coding information is still
|
|
# displayed.
|
|
#
|
|
# bash.enableGitStatus
|
|
# --------------------
|
|
#
|
|
# Option | Description
|
|
# ------ | -----------
|
|
# true | _Default_. Color coding and indicators will be shown.
|
|
# false | The script will not run.
|
|
#
|
|
# bash.showStashState
|
|
# -------------------
|
|
#
|
|
# Option | Description
|
|
# ------ | -----------
|
|
# true | _Default_. An indicator will display if the stash is not empty.
|
|
# false | An indicator will not display the stash status.
|
|
#
|
|
# bash.showStatusWhenZero
|
|
# -----------------------
|
|
#
|
|
# Option | Description
|
|
# ------ | -----------
|
|
# true | Indicators will be shown even if there are no updates to the index or
|
|
# working tree.
|
|
# false | _Default_. No file change indicators will be shown if there are no
|
|
# changes to the index or working tree.
|
|
#
|
|
# bash.showUpstream
|
|
# -----------------
|
|
#
|
|
# By default, `__git_ps1` will compare `HEAD` to your `SVN` upstream if it can
|
|
# find one, or `@{upstream}` otherwise. This is also controlled by the legacy
|
|
# environment variable `GIT_PS1_SHOWUPSTREAM`.
|
|
#
|
|
# Option | Description
|
|
# ------ | -----------
|
|
# legacy | Does not use the `--count` option available in recent versions of
|
|
# `git-rev-list`
|
|
# git | _Default_. Always compares `HEAD` to `@{upstream}`
|
|
# svn | Always compares `HEAD` to `SVN` upstream
|
|
__git_ps1_new ()
|
|
{
|
|
if [ "$(git config --bool bash.enableGitStatus)" == "false" ]; then return; fi
|
|
|
|
local DefaultForegroundColor='\e[m' # Default no color
|
|
local DefaultBackgroundColor=
|
|
|
|
local BeforeText=' ['
|
|
local BeforeForegroundColor='\e[1;33m' # Yellow
|
|
local BeforeBackgroundColor=
|
|
local DelimText=' |'
|
|
local DelimForegroundColor='\e[1;33m' # Yellow
|
|
local DelimBackgroundColor=
|
|
|
|
local AfterText=']'
|
|
local AfterForegroundColor='\e[1;33m' # Yellow
|
|
local AfterBackgroundColor=
|
|
|
|
local BranchForegroundColor='\e[1;36m' # Cyan
|
|
local BranchBackgroundColor=
|
|
local BranchAheadForegroundColor='\e[1;32m' # Green
|
|
local BranchAheadBackgroundColor=
|
|
local BranchBehindForegroundColor='\e[0;31m' # Red
|
|
local BranchBehindBackgroundColor=
|
|
local BranchBehindAndAheadForegroundColor='\e[1;33m' # Yellow
|
|
local BranchBehindAndAheadBackgroundColor=
|
|
|
|
local BeforeIndexText=""
|
|
local BeforeIndexForegroundColor='\e[1;32m' #Dark green
|
|
local BeforeIndexBackgroundColor=
|
|
|
|
local IndexForegroundColor='\e[1;32m' # Dark green
|
|
local IndexBackgroundColor=
|
|
|
|
local WorkingForegroundColor='\e[0;31m' # Dark red
|
|
local WorkingBackgroundColor=
|
|
|
|
local StashForegroundColor='\e[0;34m' # Darker blue
|
|
local StashBackgroundColor=
|
|
local StashText='$'
|
|
|
|
|
|
local EnableFileStatus=`git config --bool bash.enableFileStatus`
|
|
case "$EnableFileStatus" in
|
|
true) EnableFileStatus=true ;;
|
|
false) EnableFileStatus=false ;;
|
|
*) EnableFileStatus=true ;;
|
|
esac
|
|
local ShowStatusWhenZero=`git config --bool bash.showStatusWhenZero`
|
|
case "$ShowStatusWhenZero" in
|
|
true) ShowStatusWhenZero=true ;;
|
|
false) ShowStatusWhenZero=false ;;
|
|
*) ShowStatusWhenZero=false ;;
|
|
esac
|
|
local ShowStashState=`git config --bool bash.showStashState`
|
|
case "$ShowStashState" in
|
|
true) ShowStashState=true ;;
|
|
false) ShowStashState=false ;;
|
|
*) ShowStashState=true ;;
|
|
esac
|
|
|
|
aheadBy=0 # these globals are updated by __git_ps1_showupstream
|
|
behindBy=0
|
|
|
|
local is_pcmode=false
|
|
local is_detached=false
|
|
local ps1pc_start='\u@\h:\w '
|
|
local ps1pc_end='\$ '
|
|
local printf_format='%s'
|
|
|
|
case "$#" in
|
|
2|3)
|
|
is_pcmode=true
|
|
ps1pc_start="$1"
|
|
ps1pc_end="$2"
|
|
printf_format="${3:-$printf_format}"
|
|
;;
|
|
0|1)
|
|
printf_format="${1:-$printf_format}"
|
|
;;
|
|
*)
|
|
return
|
|
;;
|
|
esac
|
|
|
|
local g="$(__gitdir)"
|
|
if [ -z "$g" ]; then
|
|
if [ $is_pcmode ]; then
|
|
#In PROMPT_COMMAND mode PS1 always needs to be set
|
|
PS1="$ps1pc_start$ps1pc_end"
|
|
fi
|
|
return
|
|
fi
|
|
local rebase=""
|
|
local b=""
|
|
local step=""
|
|
local total=""
|
|
if [ -d "$g/rebase-merge" ]; then
|
|
b=$(cat "$g/rebase-merge/head-name" 2>/dev/null)
|
|
step=$(cat "$g/rebase-merge/msgnum" 2>/dev/null)
|
|
total=$(cat "$g/rebase-merge/end" 2>/dev/null)
|
|
if [ -f "$g/rebase-merge/interactive" ]; then
|
|
rebase="|REBASE-i"
|
|
else
|
|
rebase="|REBASE-m"
|
|
fi
|
|
else
|
|
if [ -d "$g/rebase-apply" ]; then
|
|
step=$(cat "$g/rebase-apply/next")
|
|
total=$(cat "$g/rebase-apply/last")
|
|
if [ -f "$g/rebase-apply/rebasing" ]; then
|
|
rebase="|REBASE"
|
|
elif [ -f "$g/rebase-apply/applying" ]; then
|
|
rebase="|AM"
|
|
else
|
|
rebase="|AM/REBASE"
|
|
fi
|
|
elif [ -f "$g/MERGE_HEAD" ]; then
|
|
rebase="|MERGING"
|
|
elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
|
|
rebase="|CHERRY-PICKING"
|
|
elif [ -f "$g/REVERT_HEAD" ]; then
|
|
rebase="|REVERTING"
|
|
elif [ -f "$g/BISECT_LOG" ]; then
|
|
rebase="|BISECTING"
|
|
fi
|
|
|
|
b="$(git symbolic-ref HEAD 2>/dev/null)" || {
|
|
is_detached=true
|
|
local output="$(git config -z --get bash.describeStyle)"
|
|
if [ -n "$output" ]; then
|
|
GIT_PS1_DESCRIBESTYLE=$output
|
|
fi
|
|
b="$(
|
|
case "${GIT_PS1_DESCRIBESTYLE-}" 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="($b)"
|
|
}
|
|
fi
|
|
|
|
if [ -n "$step" ] && [ -n "$total" ]; then
|
|
rebase="$rebase $step/$total"
|
|
fi
|
|
|
|
local isDirtyUnstaged=""
|
|
local isDirtyStaged=""
|
|
local hasStash=false
|
|
local isBare=""
|
|
|
|
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
|
|
isBare="BARE:"
|
|
else
|
|
b="GIT_DIR!"
|
|
fi
|
|
elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
|
|
if $ShowStashState; then
|
|
git rev-parse --verify refs/stash >/dev/null 2>&1 && hasStash=true
|
|
fi
|
|
__git_ps1_show_upstream
|
|
fi
|
|
|
|
# show index status and working directory status
|
|
if $EnableFileStatus; then
|
|
local indexAdded=0
|
|
local indexModified=0
|
|
local indexDeleted=0
|
|
local indexUnmerged=0
|
|
local filesAdded=0
|
|
local filesModified=0
|
|
local filesDeleted=0
|
|
local filesUnmerged=0
|
|
while IFS="\n" read -r tag rest
|
|
do
|
|
case "${tag:0:1}" in
|
|
A )
|
|
(( indexAdded++ ))
|
|
;;
|
|
M )
|
|
(( indexModified++ ))
|
|
;;
|
|
R )
|
|
(( indexModified++ ))
|
|
;;
|
|
C )
|
|
(( indexModified++ ))
|
|
;;
|
|
D )
|
|
(( indexDeleted++ ))
|
|
;;
|
|
U )
|
|
(( indexUnmerged++ ))
|
|
;;
|
|
esac
|
|
case "${tag:1:1}" in
|
|
\? )
|
|
(( filesAdded++ ))
|
|
;;
|
|
A )
|
|
(( filesAdded++ ))
|
|
;;
|
|
M )
|
|
(( filesModified++ ))
|
|
;;
|
|
D )
|
|
(( filesDeleted++ ))
|
|
;;
|
|
U )
|
|
(( filesUnmerged++ ))
|
|
;;
|
|
esac
|
|
done <<< "`git status --porcelain 2>/dev/null`"
|
|
fi
|
|
|
|
local gitstring=
|
|
local branchstring="$isBare${b##refs/heads/}"
|
|
# before-branch text
|
|
gitstring="\[$BeforeBackgroundColor\]\[$BeforeForegroundColor\]$BeforeText"
|
|
|
|
# branch
|
|
|
|
if (( $behindBy > 0 && $aheadBy > 0 )); then
|
|
gitstring+="\[$BranchBehindAndAheadBackgroundColor\]\[$BranchBehindAndAheadForegroundColor\]$branchstring"
|
|
elif (( $behindBy > 0 )); then
|
|
gitstring+="\[$BranchBehindBackgroundColor\]\[$BranchBehindForegroundColor\]$branchstring"
|
|
elif (( $aheadBy > 0 )); then
|
|
gitstring+="\[$BranchAheadBackgroundColor\]\[$BranchAheadForegroundColor\]$branchstring"
|
|
else
|
|
gitstring+="\[$BranchBackgroundColor\]\[$BranchForegroundColor\]$branchstring"
|
|
fi
|
|
|
|
local indexCount="$(( $indexAdded + $indexModified + $indexDeleted + $indexUnmerged ))"
|
|
local workingCount="$(( $filesAdded + $filesModified + $filesDeleted + $filesUnmerged ))"
|
|
# index status
|
|
if $EnableFileStatus; then
|
|
if (( $indexCount != 0 )) || $ShowStatusWhenZero; then
|
|
gitstring+="\[$IndexBackgroundColor\]\[$IndexForegroundColor\] +$indexAdded ~$indexModified -$indexDeleted"
|
|
fi
|
|
if (( $indexUnmerged != 0 )); then
|
|
gitstring+=" \[$IndexBackgroundColor\]\[$IndexForegroundColor\]!$indexUnmerged"
|
|
fi
|
|
if (( $indexCount != 0 && ($workingCount != 0 || $ShowStatusWhenZero) )); then
|
|
gitstring+="\[$DelimBackgroundColor\]\[$DelimForegroundColor\]$DelimText"
|
|
fi
|
|
fi
|
|
if $EnableFileStatus; then
|
|
if (( $workingCount != 0 )) || $ShowStatusWhenZero; then
|
|
gitstring+="\[$WorkingBackgroundColor\]\[$WorkingForegroundColor\] +$filesAdded ~$filesModified -$filesDeleted"
|
|
fi
|
|
if (( $filesUnmerged != 0 )); then
|
|
gitstring+=" \[$WorkingBackgroundColor\]\[$WorkingForegroundColor\]!$filesUnmerged"
|
|
fi
|
|
fi
|
|
gitstring+=${rebase:+'\[\e[0m\]'$rebase}
|
|
|
|
# after-branch text
|
|
gitstring+="\[$AfterBackgroundColor\]\[$AfterForegroundColor\]$AfterText"
|
|
|
|
if $ShowStashState && $hasStash; then
|
|
gitstring+="\[$StashBackgroundColor\]\[$StashForegroundColor\]"$StashText
|
|
fi
|
|
gitstring=`printf -- "$printf_format" "$gitstring\[$DefaultBackgroundColor\]\[$DefaultForegroundColor\]"`
|
|
if $is_pcmode; then
|
|
PS1="$ps1pc_start$gitstring$ps1pc_end"
|
|
else
|
|
printf -- "$printf_format" "$gitstring"
|
|
fi
|
|
}
|
|
|
|
__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 "$1"
|
|
fi
|
|
}
|
|
|
|
# Updates the global variables `aheadBy` and `behindBy`
|
|
__git_ps1_show_upstream ()
|
|
{
|
|
local key value
|
|
local svn_remote svn_url_pattern n
|
|
local upstream=git # default
|
|
legacy=""
|
|
|
|
svn_remote=()
|
|
# get some config options from git-config
|
|
local output="$(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
|
|
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="$option" ;;
|
|
legacy) legacy=1 ;;
|
|
esac
|
|
done
|
|
|
|
# Find our upstream
|
|
case "$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 != ${#svn_upstream[@]} )); then
|
|
svn_upstream=${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
|
|
|
|
aheadBy=0
|
|
behindBy=0
|
|
# Find how many commits we are ahead/behind our upstream
|
|
if [ -z "$legacy" ]; then
|
|
IFS=$' \t\n' read -r behindBy aheadBy <<< "`git rev-list --count --left-right $upstream...HEAD 2>/dev/null`"
|
|
else
|
|
# produce equivalent output to --count for older versions of git
|
|
while IFS=$' \t\n' read -r commit; do
|
|
case "$commit" in
|
|
"<*") (( behindBy++ )) ;;
|
|
">*") (( aheadBy++ )) ;;
|
|
esac
|
|
done <<< "`git rev-list --left-right $upstream...HEAD 2>/dev/null`"
|
|
fi
|
|
: ${aheadBy:=0}
|
|
: ${behindBy:=0}
|
|
}
|
|
|
|
write_prompt() {
|
|
printf --
|
|
} |