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-# bash/zsh git prompt support
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-#
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-# Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
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-# Distributed under the GNU General Public License, version 2.0.
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-#
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-# This script allows you to see repository status in your prompt.
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-#
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-# To enable:
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-#
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-# 1) Copy this file to somewhere (e.g. ~/.git-prompt.sh).
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-# 2) Add the following line to your .bashrc/.zshrc:
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-# source ~/.git-prompt.sh
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-# 3a) Change your PS1 to call __git_ps1 as
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-# command-substitution:
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-# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
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-# ZSH: setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
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-# the optional argument will be used as format string.
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-# 3b) Alternatively, for a slightly faster prompt, __git_ps1 can
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-# be used for PROMPT_COMMAND in Bash or for precmd() in Zsh
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-# with two parameters, <pre> and <post>, which are strings
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-# you would put in $PS1 before and after the status string
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-# generated by the git-prompt machinery. e.g.
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-# Bash: PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
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-# will show username, at-sign, host, colon, cwd, then
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-# various status string, followed by dollar and SP, as
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-# your prompt.
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-# ZSH: precmd () { __git_ps1 "%n" ":%~$ " "|%s" }
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-# will show username, pipe, then various status string,
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-# followed by colon, cwd, dollar and SP, as your prompt.
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-# Optionally, you can supply a third argument with a printf
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-# format string to finetune the output of the branch status
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-#
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-# The repository status will be displayed only if you are currently in a
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-# git repository. The %s token is the placeholder for the shown status.
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-#
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-# The prompt status always includes the current branch name.
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-#
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-# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
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-# unstaged (*) and staged (+) changes will be shown next to the branch
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-# name. You can configure this per-repository with the
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-# bash.showDirtyState variable, which defaults to true once
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-# GIT_PS1_SHOWDIRTYSTATE is enabled.
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-#
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-# You can also see if currently something is stashed, by setting
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-# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
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-# then a '$' will be shown next to the branch name.
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-#
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-# If you would like to see if there're untracked files, then you can set
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-# GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked
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-# files, then a '%' will be shown next to the branch name. You can
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-# configure this per-repository with the bash.showUntrackedFiles
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-# variable, which defaults to true once GIT_PS1_SHOWUNTRACKEDFILES is
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-# enabled.
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-#
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-# If you would like to see the difference between HEAD and its upstream,
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-# set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates you are behind, ">"
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-# indicates you are ahead, "<>" indicates you have diverged and "="
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-# indicates that there is no difference. You can further control
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-# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated list
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-# of values:
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-#
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-# verbose show number of commits ahead/behind (+/-) upstream
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-# name if verbose, then also show the upstream abbrev name
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-# legacy don't use the '--count' option available in recent
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-# versions of git-rev-list
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-# git always compare HEAD to @{upstream}
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-# svn always compare HEAD to your SVN upstream
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-#
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-# By default, __git_ps1 will compare HEAD to your SVN upstream if it can
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-# find one, or @{upstream} otherwise. Once you have set
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-# GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
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-# setting the bash.showUpstream config variable.
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-#
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-# If you would like to see more information about the identity of
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-# commits checked out as a detached HEAD, set GIT_PS1_DESCRIBE_STYLE
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-# to one of these values:
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-#
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-# contains relative to newer annotated tag (v1.6.3.2~35)
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-# branch relative to newer tag or branch (master~4)
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-# describe relative to older annotated tag (v1.6.3.1-13-gdd42c2f)
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-# default exactly matching tag
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-#
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-# If you would like a colored hint about the current dirty state, set
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-# GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on
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-# the colored output of "git status -sb" and are available only when
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-# using __git_ps1 for PROMPT_COMMAND or precmd.
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-
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-# check whether printf supports -v
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-__git_printf_supports_v=
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-printf -v __git_printf_supports_v -- '%s' yes >/dev/null 2>&1
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-
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-# stores the divergence from upstream in $p
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-# used by GIT_PS1_SHOWUPSTREAM
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-__git_ps1_show_upstream ()
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-{
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- local key value
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- local svn_remote svn_url_pattern count n
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- local upstream=git legacy="" verbose="" name=""
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-
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- svn_remote=()
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- # get some config options from git-config
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- local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
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- while read -r key value; do
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- case "$key" in
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- bash.showupstream)
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- GIT_PS1_SHOWUPSTREAM="$value"
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- if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
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- p=""
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- return
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- fi
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- ;;
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- svn-remote.*.url)
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- svn_remote[$((${#svn_remote[@]} + 1))]="$value"
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- svn_url_pattern="$svn_url_pattern\\|$value"
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- upstream=svn+git # default upstream is SVN if available, else git
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- ;;
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- esac
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- done <<< "$output"
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-
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- # parse configuration values
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- for option in ${GIT_PS1_SHOWUPSTREAM}; do
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- case "$option" in
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- git|svn) upstream="$option" ;;
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- verbose) verbose=1 ;;
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- legacy) legacy=1 ;;
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- name) name=1 ;;
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- esac
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- done
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-
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- # Find our upstream
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- case "$upstream" in
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- git) upstream="@{upstream}" ;;
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- svn*)
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- # get the upstream from the "git-svn-id: ..." in a commit message
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- # (git-svn uses essentially the same procedure internally)
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- local -a svn_upstream
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- svn_upstream=($(git log --first-parent -1 \
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- --grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
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- if [[ 0 -ne ${#svn_upstream[@]} ]]; then
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- svn_upstream=${svn_upstream[${#svn_upstream[@]} - 2]}
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- svn_upstream=${svn_upstream%@*}
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- local n_stop="${#svn_remote[@]}"
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- for ((n=1; n <= n_stop; n++)); do
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- svn_upstream=${svn_upstream#${svn_remote[$n]}}
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- done
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-
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- if [[ -z "$svn_upstream" ]]; then
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- # default branch name for checkouts with no layout:
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- upstream=${GIT_SVN_ID:-git-svn}
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- else
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- upstream=${svn_upstream#/}
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- fi
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- elif [[ "svn+git" = "$upstream" ]]; then
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- upstream="@{upstream}"
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- fi
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- ;;
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- esac
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-
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- # Find how many commits we are ahead/behind our upstream
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- if [[ -z "$legacy" ]]; then
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- count="$(git rev-list --count --left-right \
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- "$upstream"...HEAD 2>/dev/null)"
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- else
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- # produce equivalent output to --count for older versions of git
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- local commits
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- if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
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- then
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- local commit behind=0 ahead=0
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- for commit in $commits
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- do
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- case "$commit" in
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- "<"*) ((behind++)) ;;
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- *) ((ahead++)) ;;
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- esac
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- done
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- count="$behind $ahead"
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- else
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- count=""
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- fi
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- fi
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-
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- # calculate the result
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- if [[ -z "$verbose" ]]; then
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- case "$count" in
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- "") # no upstream
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- p="" ;;
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- "0 0") # equal to upstream
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- p="=" ;;
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- "0 "*) # ahead of upstream
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- p=">" ;;
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- *" 0") # behind upstream
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- p="<" ;;
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- *) # diverged from upstream
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- p="<>" ;;
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- esac
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- else
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- case "$count" in
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- "") # no upstream
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- p="" ;;
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- "0 0") # equal to upstream
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- p=" u=" ;;
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- "0 "*) # ahead of upstream
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- p=" u+${count#0 }" ;;
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- *" 0") # behind upstream
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- p=" u-${count% 0}" ;;
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- *) # diverged from upstream
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- p=" u+${count#* }-${count% *}" ;;
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- esac
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- if [[ -n "$count" && -n "$name" ]]; then
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- __git_ps1_upstream_name=$(git rev-parse \
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- --abbrev-ref "$upstream" 2>/dev/null)
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- if [ $pcmode = yes ]; then
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- # see the comments around the
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- # __git_ps1_branch_name variable below
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- p="$p \${__git_ps1_upstream_name}"
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- else
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- p="$p ${__git_ps1_upstream_name}"
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- # not needed anymore; keep user's
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- # environment clean
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- unset __git_ps1_upstream_name
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- fi
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- fi
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- fi
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-
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-}
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-
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-# Helper function that is meant to be called from __git_ps1. It
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-# injects color codes into the appropriate gitstring variables used
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-# to build a gitstring.
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-__git_ps1_colorize_gitstring ()
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-{
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- if [[ -n ${ZSH_VERSION-} ]]; then
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- local c_red='%F{red}'
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- local c_green='%F{green}'
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- local c_lblue='%F{blue}'
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- local c_clear='%f'
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- else
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- # Using \[ and \] around colors is necessary to prevent
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- # issues with command line editing/browsing/completion!
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- local c_red='\[\e[31m\]'
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- local c_green='\[\e[32m\]'
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- local c_lblue='\[\e[1;34m\]'
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- local c_clear='\[\e[0m\]'
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- fi
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- local bad_color=$c_red
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- local ok_color=$c_green
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- local flags_color="$c_lblue"
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-
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- local branch_color=""
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- if [ $detached = no ]; then
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- branch_color="$ok_color"
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- else
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- branch_color="$bad_color"
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- fi
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- c="$branch_color$c"
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-
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- z="$c_clear$z"
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- if [ "$w" = "*" ]; then
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- w="$bad_color$w"
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- fi
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- if [ -n "$i" ]; then
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- i="$ok_color$i"
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- fi
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- if [ -n "$s" ]; then
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- s="$flags_color$s"
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- fi
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- if [ -n "$u" ]; then
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- u="$bad_color$u"
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- fi
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- r="$c_clear$r"
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-}
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-
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-# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
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-# when called from PS1 using command substitution
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-# in this mode it prints text to add to bash PS1 prompt (includes branch name)
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-#
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-# __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc)
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-# in that case it _sets_ PS1. The arguments are parts of a PS1 string.
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-# when two arguments are given, the first is prepended and the second appended
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-# to the state string when assigned to PS1.
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-# The optional third parameter will be used as printf format string to further
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-# customize the output of the git-status string.
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-# In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true
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-__git_ps1 ()
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-{
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- local pcmode=no
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- local detached=no
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- local ps1pc_start='\u@\h:\w '
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- local ps1pc_end='\$ '
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- local printf_format=' (%s)'
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-
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- case "$#" in
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- 2|3) pcmode=yes
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- ps1pc_start="$1"
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- ps1pc_end="$2"
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- printf_format="${3:-$printf_format}"
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- ;;
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- 0|1) printf_format="${1:-$printf_format}"
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- ;;
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- *) return
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- ;;
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- esac
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-
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- local repo_info rev_parse_exit_code
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- repo_info="$(git rev-parse --git-dir --is-inside-git-dir \
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- --is-bare-repository --is-inside-work-tree \
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- --short HEAD 2>/dev/null)"
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- rev_parse_exit_code="$?"
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-
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- if [ -z "$repo_info" ]; then
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- if [ $pcmode = yes ]; then
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- #In PC mode PS1 always needs to be set
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- PS1="$ps1pc_start$ps1pc_end"
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- fi
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- return
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- fi
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-
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- local short_sha
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- if [ "$rev_parse_exit_code" = "0" ]; then
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- short_sha="${repo_info##*$'\n'}"
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- repo_info="${repo_info%$'\n'*}"
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- fi
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- local inside_worktree="${repo_info##*$'\n'}"
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- repo_info="${repo_info%$'\n'*}"
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- local bare_repo="${repo_info##*$'\n'}"
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- repo_info="${repo_info%$'\n'*}"
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- local inside_gitdir="${repo_info##*$'\n'}"
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- local g="${repo_info%$'\n'*}"
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-
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- local r=""
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- local b=""
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- local step=""
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- local total=""
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- if [ -d "$g/rebase-merge" ]; then
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- read b 2>/dev/null <"$g/rebase-merge/head-name"
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- read step 2>/dev/null <"$g/rebase-merge/msgnum"
|
337
|
|
- read total 2>/dev/null <"$g/rebase-merge/end"
|
338
|
|
- if [ -f "$g/rebase-merge/interactive" ]; then
|
339
|
|
- r="|REBASE-i"
|
340
|
|
- else
|
341
|
|
- r="|REBASE-m"
|
342
|
|
- fi
|
343
|
|
- else
|
344
|
|
- if [ -d "$g/rebase-apply" ]; then
|
345
|
|
- read step 2>/dev/null <"$g/rebase-apply/next"
|
346
|
|
- read total 2>/dev/null <"$g/rebase-apply/last"
|
347
|
|
- if [ -f "$g/rebase-apply/rebasing" ]; then
|
348
|
|
- read b 2>/dev/null <"$g/rebase-apply/head-name"
|
349
|
|
- r="|REBASE"
|
350
|
|
- elif [ -f "$g/rebase-apply/applying" ]; then
|
351
|
|
- r="|AM"
|
352
|
|
- else
|
353
|
|
- r="|AM/REBASE"
|
354
|
|
- fi
|
355
|
|
- elif [ -f "$g/MERGE_HEAD" ]; then
|
356
|
|
- r="|MERGING"
|
357
|
|
- elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
|
358
|
|
- r="|CHERRY-PICKING"
|
359
|
|
- elif [ -f "$g/REVERT_HEAD" ]; then
|
360
|
|
- r="|REVERTING"
|
361
|
|
- elif [ -f "$g/BISECT_LOG" ]; then
|
362
|
|
- r="|BISECTING"
|
363
|
|
- fi
|
364
|
|
-
|
365
|
|
- if [ -n "$b" ]; then
|
366
|
|
- :
|
367
|
|
- elif [ -h "$g/HEAD" ]; then
|
368
|
|
- # symlink symbolic ref
|
369
|
|
- b="$(git symbolic-ref HEAD 2>/dev/null)"
|
370
|
|
- else
|
371
|
|
- local head=""
|
372
|
|
- if ! read head 2>/dev/null <"$g/HEAD"; then
|
373
|
|
- if [ $pcmode = yes ]; then
|
374
|
|
- PS1="$ps1pc_start$ps1pc_end"
|
375
|
|
- fi
|
376
|
|
- return
|
377
|
|
- fi
|
378
|
|
- # is it a symbolic ref?
|
379
|
|
- b="${head#ref: }"
|
380
|
|
- if [ "$head" = "$b" ]; then
|
381
|
|
- detached=yes
|
382
|
|
- b="$(
|
383
|
|
- case "${GIT_PS1_DESCRIBE_STYLE-}" in
|
384
|
|
- (contains)
|
385
|
|
- git describe --contains HEAD ;;
|
386
|
|
- (branch)
|
387
|
|
- git describe --contains --all HEAD ;;
|
388
|
|
- (describe)
|
389
|
|
- git describe HEAD ;;
|
390
|
|
- (* | default)
|
391
|
|
- git describe --tags --exact-match HEAD ;;
|
392
|
|
- esac 2>/dev/null)" ||
|
393
|
|
-
|
394
|
|
- b="$short_sha..."
|
395
|
|
- b="($b)"
|
396
|
|
- fi
|
397
|
|
- fi
|
398
|
|
- fi
|
399
|
|
-
|
400
|
|
- if [ -n "$step" ] && [ -n "$total" ]; then
|
401
|
|
- r="$r $step/$total"
|
402
|
|
- fi
|
403
|
|
-
|
404
|
|
- local w=""
|
405
|
|
- local i=""
|
406
|
|
- local s=""
|
407
|
|
- local u=""
|
408
|
|
- local c=""
|
409
|
|
- local p=""
|
410
|
|
-
|
411
|
|
- if [ "true" = "$inside_gitdir" ]; then
|
412
|
|
- if [ "true" = "$bare_repo" ]; then
|
413
|
|
- c="BARE:"
|
414
|
|
- else
|
415
|
|
- b="GIT_DIR!"
|
416
|
|
- fi
|
417
|
|
- elif [ "true" = "$inside_worktree" ]; then
|
418
|
|
- if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] &&
|
419
|
|
- [ "$(git config --bool bash.showDirtyState)" != "false" ]
|
420
|
|
- then
|
421
|
|
- git diff --no-ext-diff --quiet --exit-code || w="*"
|
422
|
|
- if [ -n "$short_sha" ]; then
|
423
|
|
- git diff-index --cached --quiet HEAD -- || i="+"
|
424
|
|
- else
|
425
|
|
- i="#"
|
426
|
|
- fi
|
427
|
|
- fi
|
428
|
|
- if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] &&
|
429
|
|
- [ -r "$g/refs/stash" ]; then
|
430
|
|
- s="$"
|
431
|
|
- fi
|
432
|
|
-
|
433
|
|
- if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
|
434
|
|
- [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
|
435
|
|
- git ls-files --others --exclude-standard --error-unmatch -- '*' >/dev/null 2>/dev/null
|
436
|
|
- then
|
437
|
|
- u="%${ZSH_VERSION+%}"
|
438
|
|
- fi
|
439
|
|
-
|
440
|
|
- if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
|
441
|
|
- __git_ps1_show_upstream
|
442
|
|
- fi
|
443
|
|
- fi
|
444
|
|
-
|
445
|
|
- local z="${GIT_PS1_STATESEPARATOR-" "}"
|
446
|
|
-
|
447
|
|
- # NO color option unless in PROMPT_COMMAND mode
|
448
|
|
- if [ $pcmode = yes ] && [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
|
449
|
|
- __git_ps1_colorize_gitstring
|
450
|
|
- fi
|
451
|
|
-
|
452
|
|
- b=${b##refs/heads/}
|
453
|
|
- if [ $pcmode = yes ]; then
|
454
|
|
- # In pcmode (and only pcmode) the contents of
|
455
|
|
- # $gitstring are subject to expansion by the shell.
|
456
|
|
- # Avoid putting the raw ref name in the prompt to
|
457
|
|
- # protect the user from arbitrary code execution via
|
458
|
|
- # specially crafted ref names (e.g., a ref named
|
459
|
|
- # '$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' would execute
|
460
|
|
- # 'sudo rm -rf /' when the prompt is drawn). Instead,
|
461
|
|
- # put the ref name in a new global variable (in the
|
462
|
|
- # __git_ps1_* namespace to avoid colliding with the
|
463
|
|
- # user's environment) and reference that variable from
|
464
|
|
- # PS1.
|
465
|
|
- __git_ps1_branch_name=$b
|
466
|
|
- # note that the $ is escaped -- the variable will be
|
467
|
|
- # expanded later (when it's time to draw the prompt)
|
468
|
|
- b="\${__git_ps1_branch_name}"
|
469
|
|
- fi
|
470
|
|
-
|
471
|
|
- local f="$w$i$s$u"
|
472
|
|
- local gitstring="$c$b${f:+$z$f}$r$p"
|
473
|
|
-
|
474
|
|
- if [ $pcmode = yes ]; then
|
475
|
|
- if [ "${__git_printf_supports_v-}" != yes ]; then
|
476
|
|
- gitstring=$(printf -- "$printf_format" "$gitstring")
|
477
|
|
- else
|
478
|
|
- printf -v gitstring -- "$printf_format" "$gitstring"
|
479
|
|
- fi
|
480
|
|
- PS1="$ps1pc_start$gitstring$ps1pc_end"
|
481
|
|
- else
|
482
|
|
- printf -- "$printf_format" "$gitstring"
|
483
|
|
- fi
|
484
|
|
-}
|