+++ /dev/null
-# 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 repository status 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
-# 3a) Change your PS1 to call __git_ps1 as
-# command-substitution:
-# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
-# ZSH: setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
-# the optional argument will be used as format string.
-# 3b) Alternatively, for a slightly faster prompt, __git_ps1 can
-# be used for PROMPT_COMMAND in Bash or for precmd() in Zsh
-# with two parameters, <pre> and <post>, which are strings
-# you would put in $PS1 before and after the status string
-# generated by the git-prompt machinery. e.g.
-# Bash: PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
-# will show username, at-sign, host, colon, cwd, then
-# various status string, followed by dollar and SP, as
-# your prompt.
-# ZSH: precmd () { __git_ps1 "%n" ":%~$ " "|%s" }
-# will show username, pipe, then various status string,
-# followed by colon, cwd, 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 repository status will be displayed only if you are currently in a
-# git repository. The %s token is the placeholder for the shown status.
-#
-# The prompt status always includes the current branch name.
-#
-# 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. You can
-# configure this per-repository with the bash.showUntrackedFiles
-# variable, which defaults to true once GIT_PS1_SHOWUNTRACKEDFILES is
-# enabled.
-#
-# 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
-# name if verbose, then also show the upstream abbrev name
-# 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.
-#
-# You can change the separator between the branch name and the above
-# state symbols by setting GIT_PS1_STATESEPARATOR. The default separator
-# is SP.
-#
-# When there is an in-progress operation such as a merge, rebase,
-# revert, cherry-pick, or bisect, the prompt will include information
-# related to the operation, often in the form "|<OPERATION-NAME>".
-#
-# When the repository has a sparse-checkout, a notification of the form
-# "|SPARSE" will be included in the prompt. This can be shortened to a
-# single '?' character by setting GIT_PS1_COMPRESSSPARSESTATE, or omitted
-# by setting GIT_PS1_OMITSPARSESTATE.
-#
-# If you would like to see more information about the identity of
-# commits checked out as a detached HEAD, set GIT_PS1_DESCRIBE_STYLE
-# to one of these values:
-#
-# 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)
-# tag relative to any older tag (v1.6.3.1-13-gdd42c2f)
-# default exactly matching tag
-#
-# If you would like a colored hint about the current dirty state, set
-# GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on
-# the colored output of "git status -sb" and are available only when
-# using __git_ps1 for PROMPT_COMMAND or precmd in Bash,
-# but always available in Zsh.
-#
-# If you would like __git_ps1 to do nothing in the case when the current
-# directory is set up to be ignored by git, then set
-# GIT_PS1_HIDE_IF_PWD_IGNORED to a nonempty value. Override this on the
-# repository level by setting bash.hideIfPwdIgnored to "false".
-
-# check whether printf supports -v
-__git_printf_supports_v=
-printf -v __git_printf_supports_v -- '%s' yes >/dev/null 2>&1
-
-# stores the divergence from upstream in $p
-# used by GIT_PS1_SHOWUPSTREAM
-__git_ps1_show_upstream ()
-{
- local key value
- local svn_remote svn_url_pattern count n
- local upstream_type=git legacy="" verbose="" name=""
-
- svn_remote=()
- # get some config options from git-config
- local output="$(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))]="$value"
- svn_url_pattern="$svn_url_pattern\\|$value"
- upstream_type=svn+git # default upstream type is SVN if available, else git
- ;;
- esac
- done <<< "$output"
-
- # parse configuration values
- local option
- for option in ${GIT_PS1_SHOWUPSTREAM}; do
- case "$option" in
- git|svn) upstream_type="$option" ;;
- verbose) verbose=1 ;;
- legacy) legacy=1 ;;
- name) name=1 ;;
- esac
- done
-
- # Find our upstream type
- case "$upstream_type" in
- git) upstream_type="@{upstream}" ;;
- svn*)
- # get the upstream from the "git-svn-id: ..." in a commit message
- # (git-svn uses essentially the same procedure internally)
- local -a svn_upstream
- 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 "$svn_upstream" ]]; then
- # default branch name for checkouts with no layout:
- upstream_type=${GIT_SVN_ID:-git-svn}
- else
- upstream_type=${svn_upstream#/}
- fi
- elif [[ "svn+git" = "$upstream_type" ]]; then
- upstream_type="@{upstream}"
- fi
- ;;
- esac
-
- # Find how many commits we are ahead/behind our upstream
- if [[ -z "$legacy" ]]; then
- count="$(git rev-list --count --left-right \
- "$upstream_type"...HEAD 2>/dev/null)"
- else
- # produce equivalent output to --count for older versions of git
- local commits
- if commits="$(git rev-list --left-right "$upstream_type"...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 "$count" in
- "") # no upstream
- p="" ;;
- "0 0") # equal to upstream
- p="=" ;;
- "0 "*) # ahead of upstream
- p=">" ;;
- *" 0") # behind upstream
- p="<" ;;
- *) # diverged from upstream
- p="<>" ;;
- esac
- else # verbose, set upstream instead of p
- case "$count" in
- "") # no upstream
- upstream="" ;;
- "0 0") # equal to upstream
- upstream="|u=" ;;
- "0 "*) # ahead of upstream
- upstream="|u+${count#0 }" ;;
- *" 0") # behind upstream
- upstream="|u-${count% 0}" ;;
- *) # diverged from upstream
- upstream="|u+${count#* }-${count% *}" ;;
- esac
- if [[ -n "$count" && -n "$name" ]]; then
- __git_ps1_upstream_name=$(git rev-parse \
- --abbrev-ref "$upstream_type" 2>/dev/null)
- if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then
- upstream="$upstream \${__git_ps1_upstream_name}"
- else
- upstream="$upstream ${__git_ps1_upstream_name}"
- # not needed anymore; keep user's
- # environment clean
- unset __git_ps1_upstream_name
- fi
- fi
- fi
-
-}
-
-# Helper function that is meant to be called from __git_ps1. It
-# injects color codes into the appropriate gitstring variables used
-# to build a gitstring. Colored variables are responsible for clearing
-# their own color.
-__git_ps1_colorize_gitstring ()
-{
- if [[ -n ${ZSH_VERSION-} ]]; then
- local c_red='%F{red}'
- local c_green='%F{green}'
- local c_lblue='%F{blue}'
- local c_clear='%f'
- else
- # Using \[ and \] around colors is necessary to prevent
- # issues with command line editing/browsing/completion!
- local c_red='\[\e[31m\]'
- local c_green='\[\e[32m\]'
- local c_lblue='\[\e[1;34m\]'
- local c_clear='\[\e[0m\]'
- fi
- local bad_color=$c_red
- local ok_color=$c_green
- local flags_color="$c_lblue"
-
- local branch_color=""
- if [ $detached = no ]; then
- branch_color="$ok_color"
- else
- branch_color="$bad_color"
- fi
- if [ -n "$c" ]; then
- c="$branch_color$c$c_clear"
- fi
- b="$branch_color$b$c_clear"
-
- if [ -n "$w" ]; then
- w="$bad_color$w$c_clear"
- fi
- if [ -n "$i" ]; then
- i="$ok_color$i$c_clear"
- fi
- if [ -n "$s" ]; then
- s="$flags_color$s$c_clear"
- fi
- if [ -n "$u" ]; then
- u="$bad_color$u$c_clear"
- fi
-}
-
-# Helper function to read the first line of a file into a variable.
-# __git_eread requires 2 arguments, the file path and the name of the
-# variable, in that order.
-__git_eread ()
-{
- test -r "$1" && IFS=$'\r\n' read "$2" <"$1"
-}
-
-# see if a cherry-pick or revert is in progress, if the user has committed a
-# conflict resolution with 'git commit' in the middle of a sequence of picks or
-# reverts then CHERRY_PICK_HEAD/REVERT_HEAD will not exist so we have to read
-# the todo file.
-__git_sequencer_status ()
-{
- local todo
- if test -f "$g/CHERRY_PICK_HEAD"
- then
- r="|CHERRY-PICKING"
- return 0;
- elif test -f "$g/REVERT_HEAD"
- then
- r="|REVERTING"
- return 0;
- elif __git_eread "$g/sequencer/todo" todo
- then
- case "$todo" in
- p[\ \ ]|pick[\ \ ]*)
- r="|CHERRY-PICKING"
- return 0
- ;;
- revert[\ \ ]*)
- r="|REVERTING"
- return 0
- ;;
- esac
- fi
- return 1
-}
-
-# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
-# when called from PS1 using command substitution
-# in this mode it prints text to add to bash PS1 prompt (includes branch name)
-#
-# __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc)
-# in that case it _sets_ PS1. The arguments are parts of a PS1 string.
-# when two arguments are given, the first is prepended and the second appended
-# to the state string when assigned to PS1.
-# The optional third parameter will be used as printf format string to further
-# customize the output of the git-status string.
-# In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true
-__git_ps1 ()
-{
- # preserve exit status
- local exit=$?
- local pcmode=no
- local detached=no
- local ps1pc_start='\u@\h:\w '
- local ps1pc_end='\$ '
- local printf_format=' (%s)'
-
- case "$#" in
- 2|3) pcmode=yes
- ps1pc_start="$1"
- ps1pc_end="$2"
- printf_format="${3:-$printf_format}"
- # set PS1 to a plain prompt so that we can
- # simply return early if the prompt should not
- # be decorated
- PS1="$ps1pc_start$ps1pc_end"
- ;;
- 0|1) printf_format="${1:-$printf_format}"
- ;;
- *) return $exit
- ;;
- esac
-
- # ps1_expanded: This variable is set to 'yes' if the shell
- # subjects the value of PS1 to parameter expansion:
- #
- # * bash does unless the promptvars option is disabled
- # * zsh does not unless the PROMPT_SUBST option is set
- # * POSIX shells always do
- #
- # If the shell would expand the contents of PS1 when drawing
- # the prompt, a raw ref name must not be included in PS1.
- # This protects the user from arbitrary code execution via
- # specially crafted ref names. For example, a ref named
- # 'refs/heads/$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' might cause the
- # shell to execute 'sudo rm -rf /' when the prompt is drawn.
- #
- # Instead, the ref name should be placed in a separate global
- # variable (in the __git_ps1_* namespace to avoid colliding
- # with the user's environment) and that variable should be
- # referenced from PS1. For example:
- #
- # __git_ps1_foo=$(do_something_to_get_ref_name)
- # PS1="...stuff...\${__git_ps1_foo}...stuff..."
- #
- # If the shell does not expand the contents of PS1, the raw
- # ref name must be included in PS1.
- #
- # The value of this variable is only relevant when in pcmode.
- #
- # Assume that the shell follows the POSIX specification and
- # expands PS1 unless determined otherwise. (This is more
- # likely to be correct if the user has a non-bash, non-zsh
- # shell and safer than the alternative if the assumption is
- # incorrect.)
- #
- local ps1_expanded=yes
- [ -z "${ZSH_VERSION-}" ] || [[ -o PROMPT_SUBST ]] || ps1_expanded=no
- [ -z "${BASH_VERSION-}" ] || shopt -q promptvars || ps1_expanded=no
-
- local repo_info rev_parse_exit_code
- repo_info="$(git rev-parse --git-dir --is-inside-git-dir \
- --is-bare-repository --is-inside-work-tree \
- --short HEAD 2>/dev/null)"
- rev_parse_exit_code="$?"
-
- if [ -z "$repo_info" ]; then
- return $exit
- fi
-
- local short_sha=""
- if [ "$rev_parse_exit_code" = "0" ]; then
- short_sha="${repo_info##*$'\n'}"
- repo_info="${repo_info%$'\n'*}"
- fi
- local inside_worktree="${repo_info##*$'\n'}"
- repo_info="${repo_info%$'\n'*}"
- local bare_repo="${repo_info##*$'\n'}"
- repo_info="${repo_info%$'\n'*}"
- local inside_gitdir="${repo_info##*$'\n'}"
- local g="${repo_info%$'\n'*}"
-
- if [ "true" = "$inside_worktree" ] &&
- [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED-}" ] &&
- [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] &&
- git check-ignore -q .
- then
- return $exit
- fi
-
- local sparse=""
- if [ -z "${GIT_PS1_COMPRESSSPARSESTATE-}" ] &&
- [ -z "${GIT_PS1_OMITSPARSESTATE-}" ] &&
- [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
- sparse="|SPARSE"
- fi
-
- local r=""
- local b=""
- local step=""
- local total=""
- if [ -d "$g/rebase-merge" ]; then
- __git_eread "$g/rebase-merge/head-name" b
- __git_eread "$g/rebase-merge/msgnum" step
- __git_eread "$g/rebase-merge/end" total
- r="|REBASE"
- else
- if [ -d "$g/rebase-apply" ]; then
- __git_eread "$g/rebase-apply/next" step
- __git_eread "$g/rebase-apply/last" total
- if [ -f "$g/rebase-apply/rebasing" ]; then
- __git_eread "$g/rebase-apply/head-name" b
- r="|REBASE"
- elif [ -f "$g/rebase-apply/applying" ]; then
- r="|AM"
- else
- r="|AM/REBASE"
- fi
- elif [ -f "$g/MERGE_HEAD" ]; then
- r="|MERGING"
- elif __git_sequencer_status; then
- :
- elif [ -f "$g/BISECT_LOG" ]; then
- r="|BISECTING"
- fi
-
- if [ -n "$b" ]; then
- :
- elif [ -h "$g/HEAD" ]; then
- # symlink symbolic ref
- b="$(git symbolic-ref HEAD 2>/dev/null)"
- else
- local head=""
- if ! __git_eread "$g/HEAD" head; then
- return $exit
- fi
- # is it a symbolic ref?
- b="${head#ref: }"
- if [ "$head" = "$b" ]; then
- detached=yes
- b="$(
- case "${GIT_PS1_DESCRIBE_STYLE-}" in
- (contains)
- git describe --contains HEAD ;;
- (branch)
- git describe --contains --all HEAD ;;
- (tag)
- git describe --tags HEAD ;;
- (describe)
- git describe HEAD ;;
- (* | default)
- git describe --tags --exact-match HEAD ;;
- esac 2>/dev/null)" ||
-
- b="$short_sha..."
- b="($b)"
- fi
- fi
- fi
-
- if [ -n "$step" ] && [ -n "$total" ]; then
- r="$r $step/$total"
- fi
-
- local w=""
- local i=""
- local s=""
- local u=""
- local h=""
- local c=""
- local p="" # short version of upstream state indicator
- local upstream="" # verbose version of upstream state indicator
-
- if [ "true" = "$inside_gitdir" ]; then
- if [ "true" = "$bare_repo" ]; then
- c="BARE:"
- else
- b="GIT_DIR!"
- fi
- elif [ "true" = "$inside_worktree" ]; then
- if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] &&
- [ "$(git config --bool bash.showDirtyState)" != "false" ]
- then
- git diff --no-ext-diff --quiet || w="*"
- git diff --no-ext-diff --cached --quiet || i="+"
- if [ -z "$short_sha" ] && [ -z "$i" ]; then
- i="#"
- fi
- fi
- if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] &&
- git rev-parse --verify --quiet refs/stash >/dev/null
- then
- s="$"
- fi
-
- if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
- [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
- git ls-files --others --exclude-standard --directory --no-empty-directory --error-unmatch -- ':/*' >/dev/null 2>/dev/null
- then
- u="%${ZSH_VERSION+%}"
- fi
-
- if [ -n "${GIT_PS1_COMPRESSSPARSESTATE-}" ] &&
- [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
- h="?"
- fi
-
- if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
- __git_ps1_show_upstream
- fi
- fi
-
- local z="${GIT_PS1_STATESEPARATOR-" "}"
-
- b=${b##refs/heads/}
- if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then
- __git_ps1_branch_name=$b
- b="\${__git_ps1_branch_name}"
- fi
-
- # NO color option unless in PROMPT_COMMAND mode or it's Zsh
- if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
- if [ $pcmode = yes ] || [ -n "${ZSH_VERSION-}" ]; then
- __git_ps1_colorize_gitstring
- fi
- fi
-
- local f="$h$w$i$s$u$p"
- local gitstring="$c$b${f:+$z$f}${sparse}$r${upstream}"
-
- if [ $pcmode = yes ]; then
- if [ "${__git_printf_supports_v-}" != yes ]; then
- gitstring=$(printf -- "$printf_format" "$gitstring")
- else
- printf -v gitstring -- "$printf_format" "$gitstring"
- fi
- PS1="$ps1pc_start$gitstring$ps1pc_end"
- else
- printf -- "$printf_format" "$gitstring"
- fi
-
- return $exit
-}
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