[git/git.git] / contrib / completion / git-prompt.sh

# 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
#    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 $PS1 before
#        and after the status string generated by the git-prompt
#        machinery.  e.g.
#           PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
#        will show username, at-sign, host, colon, cwd, then
#        various status string, followed by dollar and SP, as
#        your prompt.
#        Optionally, you can supply a third argument with a printf
#        format string to finetune the output of the branch status
#
# The argument to __git_ps1 will be displayed only if you are currently
# in a git repository.  The %s token will be the name of the current
# branch.
#
# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
# unstaged (*) and staged (+) changes will be shown next to the branch
# name.  You can configure this per-repository with the
# bash.showDirtyState variable, which defaults to true once
# GIT_PS1_SHOWDIRTYSTATE is enabled.
#
# You can also see if currently something is stashed, by setting
# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
# then a '$' 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
#     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.
#
# 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)
#     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".

# __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 "$upstream" in
	git)    upstream="@{upstream}" ;;
	svn*)
		# get the upstream from the "git-svn-id: ..." in a commit message
		# (git-svn uses essentially the same procedure internally)
		local -a svn_upstream
		svn_upstream=($(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 "$svn_upstream" ]]; then
				# default branch name for checkouts with no layout:
				upstream=${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)
# 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 ()
{
	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:-$printf_format}"
		;;
		0|1)	printf_format="${1:-$printf_format}"
		;;
		*)	return
		;;
	esac

	local g="$(__gitdir)"
	if [ -z "$g" ]; then
		if [ $pcmode = yes ]; then
			#In PC mode PS1 always needs to be set
			PS1="$ps1pc_start$ps1pc_end"
		fi
	else
		local r=""
		local b=""
		if [ -f "$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 "$g/REVERT_HEAD" ]; then
				r="|REVERTING"
			elif [ -f "$g/BISECT_LOG" ]; then
				r="|BISECTING"
			fi

			b="$(git symbolic-ref HEAD 2>/dev/null)" || {
				detached=yes
				b="$(
				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-}" ] &&
			   [ "$(git config --bool bash.showDirtyState)" != "false" ]
			then
				git diff --no-ext-diff --quiet --exit-code || w="*"
				if git rev-parse --quiet --verify HEAD >/dev/null; then
					git diff-index --cached --quiet HEAD -- || i="+"
				else
					i="#"
				fi
			fi
			if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
				git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
			fi

			if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
			   [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
			   [ -n "$(git ls-files --others --exclude-standard)" ]
			then
				u="%${ZSH_VERSION+%}"
			fi

			if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
				__git_ps1_show_upstream
			fi
		fi

		local f="$w$i$s$u"
		if [ $pcmode = yes ]; then
			local gitstring=
			if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
				local c_red='\e[31m'
				local c_green='\e[32m'
				local c_lblue='\e[1;34m'
				local c_clear='\e[0m'
				local bad_color=$c_red
				local ok_color=$c_green
				local branch_color="$c_clear"
				local flags_color="$c_lblue"
				local branchstring="$c${b##refs/heads/}"

				if [ $detached = no ]; then
					branch_color="$ok_color"
				else
					branch_color="$bad_color"
				fi

				# Setting gitstring directly with \[ and \] around colors
				# is necessary to prevent wrapping issues!
				gitstring="\[$branch_color\]$branchstring\[$c_clear\]"

				if [ -n "$w$i$s$u$r$p" ]; then
					gitstring="$gitstring "
				fi
				if [ "$w" = "*" ]; then
					gitstring="$gitstring\[$bad_color\]$w"
				fi
				if [ -n "$i" ]; then
					gitstring="$gitstring\[$ok_color\]$i"
				fi
				if [ -n "$s" ]; then
					gitstring="$gitstring\[$flags_color\]$s"
				fi
				if [ -n "$u" ]; then
					gitstring="$gitstring\[$bad_color\]$u"
				fi
				gitstring="$gitstring\[$c_clear\]$r$p"
			else
				gitstring="$c${b##refs/heads/}${f:+ $f}$r$p"
			fi
			gitstring=$(printf -- "$printf_format" "$gitstring")
			PS1="$ps1pc_start$gitstring$ps1pc_end"
		else
			# NO color option unless in PROMPT_COMMAND mode
			printf -- "$printf_format" "$c${b##refs/heads/}${f:+ $f}$r$p"
		fi
	fi
}
Commit	Line	Data
af31a456 FC	1	# bash/zsh git prompt support
	2	#
	3	# Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
	4	# Distributed under the GNU General Public License, version 2.0.
	5	#
	6	# This script allows you to see the current branch in your prompt.
	7	#
	8	# To enable:
	9	#
	10	# 1) Copy this file to somewhere (e.g. ~/.git-prompt.sh).
	11	# 2) Add the following line to your .bashrc/.zshrc:
	12	# source ~/.git-prompt.sh
de29a7ac	13	# 3a) Change your PS1 to call __git_ps1 as
1bfc51ac SO	14	# command-substitution:
	15	# Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
	16	# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
de29a7ac JH	17	# the optional argument will be used as format string.
	18	# 3b) Alternatively, if you are using bash, __git_ps1 can be
	19	# used for PROMPT_COMMAND with two parameters, <pre> and
	20	# <post>, which are strings you would put in $PS1 before
	21	# and after the status string generated by the git-prompt
	22	# machinery. e.g.
	23	# PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
	24	# will show username, at-sign, host, colon, cwd, then
	25	# various status string, followed by dollar and SP, as
	26	# your prompt.
126b5969 SO	27	# Optionally, you can supply a third argument with a printf
126b5969 SO	28	# format string to finetune the output of the branch status
af31a456 FC	29	#
	30	# The argument to __git_ps1 will be displayed only if you are currently
	31	# in a git repository. The %s token will be the name of the current
	32	# branch.
	33	#
	34	# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
	35	# unstaged (*) and staged (+) changes will be shown next to the branch
	36	# name. You can configure this per-repository with the
	37	# bash.showDirtyState variable, which defaults to true once
	38	# GIT_PS1_SHOWDIRTYSTATE is enabled.
	39	#
	40	# You can also see if currently something is stashed, by setting
	41	# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
	42	# then a '$' will be shown next to the branch name.
	43	#
	44	# If you would like to see if there're untracked files, then you can set
	45	# GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked
66cb5d44 MEW	46	# files, then a '%' will be shown next to the branch name. You can
	47	# configure this per-repository with the bash.showUntrackedFiles
	48	# variable, which defaults to true once GIT_PS1_SHOWUNTRACKEDFILES is
	49	# enabled.
af31a456 FC	50	#
	51	# If you would like to see the difference between HEAD and its upstream,
	52	# set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates you are behind, ">"
f9db1921 JDL	53	# indicates you are ahead, "<>" indicates you have diverged and "="
	54	# indicates that there is no difference. You can further control
	55	# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated list
	56	# of values:
af31a456 FC	57	#
	58	# verbose show number of commits ahead/behind (+/-) upstream
	59	# legacy don't use the '--count' option available in recent
	60	# versions of git-rev-list
	61	# git always compare HEAD to @{upstream}
	62	# svn always compare HEAD to your SVN upstream
	63	#
	64	# By default, __git_ps1 will compare HEAD to your SVN upstream if it can
	65	# find one, or @{upstream} otherwise. Once you have set
	66	# GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
	67	# setting the bash.showUpstream config variable.
9b7e776c	68	#
50b03b04 AK	69	# If you would like to see more information about the identity of
	70	# commits checked out as a detached HEAD, set GIT_PS1_DESCRIBE_STYLE
	71	# to one of these values:
	72	#
	73	# contains relative to newer annotated tag (v1.6.3.2~35)
	74	# branch relative to newer tag or branch (master~4)
	75	# describe relative to older annotated tag (v1.6.3.1-13-gdd42c2f)
	76	# default exactly matching tag
f993e2e1	77	#
9b7e776c	78	# If you would like a colored hint about the current dirty state, set
9b3aaf8b SO	79	# GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on
9b3aaf8b SO	80	# the colored output of "git status -sb".
af31a456 FC	81
	82	# __gitdir accepts 0 or 1 arguments (i.e., location)
	83	# returns location of .git repo
	84	__gitdir ()
	85	{
ac3eb1c3 JH	86	# Note: this function is duplicated in git-completion.bash
ac3eb1c3 JH	87	# When updating it, make sure you update the other one to match.
af31a456 FC	88	if [ -z "${1-}" ]; then
	89	if [ -n "${__git_dir-}" ]; then
	90	echo "$__git_dir"
	91	elif [ -n "${GIT_DIR-}" ]; then
	92	test -d "${GIT_DIR-}" \|\| return 1
	93	echo "$GIT_DIR"
	94	elif [ -d .git ]; then
	95	echo .git
	96	else
	97	git rev-parse --git-dir 2>/dev/null
	98	fi
	99	elif [ -d "$1/.git" ]; then
	100	echo "$1/.git"
	101	else
	102	echo "$1"
	103	fi
	104	}
	105
	106	# stores the divergence from upstream in $p
	107	# used by GIT_PS1_SHOWUPSTREAM
	108	__git_ps1_show_upstream ()
	109	{
	110	local key value
	111	local svn_remote svn_url_pattern count n
	112	local upstream=git legacy="" verbose=""
	113
	114	svn_remote=()
	115	# get some config options from git-config
	116	local output="$(git config -z --get-regexp '^(svn-remote\..*\.url\|bash\.showupstream)$' 2>/dev/null \| tr '\0\n' '\n ')"
	117	while read -r key value; do
	118	case "$key" in
	119	bash.showupstream)
	120	GIT_PS1_SHOWUPSTREAM="$value"
	121	if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
	122	p=""
	123	return
	124	fi
	125	;;
	126	svn-remote.*.url)
d0583da8	127	svn_remote[$((${#svn_remote[@]} + 1))]="$value"
af31a456 FC	128	svn_url_pattern+="\\\|$value"
	129	upstream=svn+git # default upstream is SVN if available, else git
	130	;;
	131	esac
	132	done <<< "$output"
	133
	134	# parse configuration values
	135	for option in ${GIT_PS1_SHOWUPSTREAM}; do
	136	case "$option" in
	137	git\|svn) upstream="$option" ;;
	138	verbose) verbose=1 ;;
	139	legacy) legacy=1 ;;
	140	esac
	141	done
	142
	143	# Find our upstream
	144	case "$upstream" in
	145	git) upstream="@{upstream}" ;;
	146	svn*)
	147	# get the upstream from the "git-svn-id: ..." in a commit message
	148	# (git-svn uses essentially the same procedure internally)
d0583da8 TG	149	local -a svn_upstream
d0583da8 TG	150	svn_upstream=($(git log --first-parent -1 \
af31a456 FC	151	--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
af31a456 FC	152	if [[ 0 -ne ${#svn_upstream[@]} ]]; then
d0583da8	153	svn_upstream=${svn_upstream[${#svn_upstream[@]} - 2]}
af31a456 FC	154	svn_upstream=${svn_upstream%@*}
	155	local n_stop="${#svn_remote[@]}"
	156	for ((n=1; n <= n_stop; n++)); do
	157	svn_upstream=${svn_upstream#${svn_remote[$n]}}
	158	done
	159
	160	if [[ -z "$svn_upstream" ]]; then
	161	# default branch name for checkouts with no layout:
	162	upstream=${GIT_SVN_ID:-git-svn}
	163	else
	164	upstream=${svn_upstream#/}
	165	fi
	166	elif [[ "svn+git" = "$upstream" ]]; then
	167	upstream="@{upstream}"
	168	fi
	169	;;
	170	esac
	171
	172	# Find how many commits we are ahead/behind our upstream
	173	if [[ -z "$legacy" ]]; then
	174	count="$(git rev-list --count --left-right \
	175	"$upstream"...HEAD 2>/dev/null)"
	176	else
	177	# produce equivalent output to --count for older versions of git
	178	local commits
	179	if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
	180	then
	181	local commit behind=0 ahead=0
	182	for commit in $commits
	183	do
	184	case "$commit" in
	185	"<"*) ((behind++)) ;;
	186	*) ((ahead++)) ;;
	187	esac
	188	done
	189	count="$behind $ahead"
	190	else
	191	count=""
	192	fi
	193	fi
	194
	195	# calculate the result
	196	if [[ -z "$verbose" ]]; then
	197	case "$count" in
	198	"") # no upstream
	199	p="" ;;
	200	"0 0") # equal to upstream
	201	p="=" ;;
	202	"0 "*) # ahead of upstream
	203	p=">" ;;
	204	*" 0") # behind upstream
	205	p="<" ;;
	206	*) # diverged from upstream
	207	p="<>" ;;
	208	esac
	209	else
	210	case "$count" in
	211	"") # no upstream
	212	p="" ;;
	213	"0 0") # equal to upstream
	214	p=" u=" ;;
	215	"0 "*) # ahead of upstream
	216	p=" u+${count#0 }" ;;
	217	*" 0") # behind upstream
218	p=" u-${count% 0}" ;;
219	*) # diverged from upstream
220	p=" u+${count#* }-${count% *}" ;;
221	esac
222	fi
223
224	}
225
226
227	# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
1bfc51ac SO	228	# when called from PS1 using command substitution
	229	# in this mode it prints text to add to bash PS1 prompt (includes branch name)
	230	#
126b5969	231	# __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc)
1bfc51ac	232	# in that case it _sets_ PS1. The arguments are parts of a PS1 string.
126b5969	233	# when two arguments are given, the first is prepended and the second appended
1bfc51ac	234	# to the state string when assigned to PS1.
126b5969 SO	235	# The optional third parameter will be used as printf format string to further
126b5969 SO	236	# customize the output of the git-status string.
9b7e776c	237	# In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true
af31a456 FC	238	__git_ps1 ()
af31a456 FC	239	{
1bfc51ac	240	local pcmode=no
9b3aaf8b	241	local detached=no
1bfc51ac SO	242	local ps1pc_start='\u@\h:\w '
	243	local ps1pc_end='\$ '
	244	local printf_format=' (%s)'
	245
	246	case "$#" in
126b5969	247	2\|3) pcmode=yes
1bfc51ac SO	248	ps1pc_start="$1"
1bfc51ac SO	249	ps1pc_end="$2"
126b5969	250	printf_format="${3:-$printf_format}"
1bfc51ac SO	251	;;
	252	0\|1) printf_format="${1:-$printf_format}"
	253	;;
	254	*) return
	255	;;
	256	esac
	257
af31a456	258	local g="$(__gitdir)"
1bfc51ac SO	259	if [ -z "$g" ]; then
	260	if [ $pcmode = yes ]; then
	261	#In PC mode PS1 always needs to be set
	262	PS1="$ps1pc_start$ps1pc_end"
	263	fi
	264	else
af31a456 FC	265	local r=""
	266	local b=""
	267	if [ -f "$g/rebase-merge/interactive" ]; then
	268	r="\|REBASE-i"
	269	b="$(cat "$g/rebase-merge/head-name")"
	270	elif [ -d "$g/rebase-merge" ]; then
	271	r="\|REBASE-m"
	272	b="$(cat "$g/rebase-merge/head-name")"
	273	else
	274	if [ -d "$g/rebase-apply" ]; then
	275	if [ -f "$g/rebase-apply/rebasing" ]; then
	276	r="\|REBASE"
	277	elif [ -f "$g/rebase-apply/applying" ]; then
	278	r="\|AM"
	279	else
	280	r="\|AM/REBASE"
	281	fi
	282	elif [ -f "$g/MERGE_HEAD" ]; then
	283	r="\|MERGING"
	284	elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
	285	r="\|CHERRY-PICKING"
3ee44528 RR	286	elif [ -f "$g/REVERT_HEAD" ]; then
3ee44528 RR	287	r="\|REVERTING"
af31a456 FC	288	elif [ -f "$g/BISECT_LOG" ]; then
	289	r="\|BISECTING"
	290	fi
	291
	292	b="$(git symbolic-ref HEAD 2>/dev/null)" \|\| {
9b3aaf8b	293	detached=yes
af31a456 FC	294	b="$(
	295	case "${GIT_PS1_DESCRIBE_STYLE-}" in
	296	(contains)
	297	git describe --contains HEAD ;;
	298	(branch)
	299	git describe --contains --all HEAD ;;
	300	(describe)
	301	git describe HEAD ;;
	302	(* \| default)
	303	git describe --tags --exact-match HEAD ;;
	304	esac 2>/dev/null)" \|\|
	305
	306	b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." \|\|
	307	b="unknown"
	308	b="($b)"
	309	}
	310	fi
	311
	312	local w=""
	313	local i=""
	314	local s=""
	315	local u=""
	316	local c=""
	317	local p=""
	318
	319	if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
	320	if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
	321	c="BARE:"
	322	else
	323	b="GIT_DIR!"
	324	fi
	325	elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
31e6a4e6 MEW	326	if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] &&
	327	[ "$(git config --bool bash.showDirtyState)" != "false" ]
	328	then
	329	git diff --no-ext-diff --quiet --exit-code \|\| w="*"
	330	if git rev-parse --quiet --verify HEAD >/dev/null; then
	331	git diff-index --cached --quiet HEAD -- \|\| i="+"
	332	else
	333	i="#"
af31a456 FC	334	fi
	335	fi
	336	if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
	337	git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
	338	fi
	339
31e6a4e6 MEW	340	if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
	341	[ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
	342	[ -n "$(git ls-files --others --exclude-standard)" ]
	343	then
24b6132e	344	u="%${ZSH_VERSION+%}"
af31a456 FC	345	fi
	346
	347	if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
	348	__git_ps1_show_upstream
	349	fi
	350	fi
	351
	352	local f="$w$i$s$u"
1bfc51ac	353	if [ $pcmode = yes ]; then
126b5969	354	local gitstring=
9b3aaf8b	355	if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
9b7e776c SO	356	local c_red='\e[31m'
9b7e776c SO	357	local c_green='\e[32m'
9b7e776c	358	local c_lblue='\e[1;34m'
9b7e776c	359	local c_clear='\e[0m'
9b3aaf8b SO	360	local bad_color=$c_red
	361	local ok_color=$c_green
	362	local branch_color="$c_clear"
	363	local flags_color="$c_lblue"
9b7e776c	364	local branchstring="$c${b##refs/heads/}"
9b7e776c	365
76c36c02	366	if [ $detached = no ]; then
9b3aaf8b SO	367	branch_color="$ok_color"
	368	else
	369	branch_color="$bad_color"
9b7e776c SO	370	fi
9b7e776c SO	371
126b5969	372	# Setting gitstring directly with \[ and \] around colors
9b7e776c	373	# is necessary to prevent wrapping issues!
126b5969	374	gitstring="\[$branch_color\]$branchstring\[$c_clear\]"
9b3aaf8b SO	375
9b3aaf8b SO	376	if [ -n "$w$i$s$u$r$p" ]; then
126b5969	377	gitstring="$gitstring "
9b3aaf8b SO	378	fi
9b3aaf8b SO	379	if [ "$w" = "*" ]; then
126b5969	380	gitstring="$gitstring\[$bad_color\]$w"
9b3aaf8b SO	381	fi
9b3aaf8b SO	382	if [ -n "$i" ]; then
126b5969	383	gitstring="$gitstring\[$ok_color\]$i"
9b3aaf8b SO	384	fi
9b3aaf8b SO	385	if [ -n "$s" ]; then
126b5969	386	gitstring="$gitstring\[$flags_color\]$s"
9b3aaf8b SO	387	fi
9b3aaf8b SO	388	if [ -n "$u" ]; then
126b5969	389	gitstring="$gitstring\[$bad_color\]$u"
9b7e776c	390	fi
126b5969	391	gitstring="$gitstring\[$c_clear\]$r$p"
9b7e776c	392	else
126b5969	393	gitstring="$c${b##refs/heads/}${f:+ $f}$r$p"
9b7e776c	394	fi
126b5969 SO	395	gitstring=$(printf -- "$printf_format" "$gitstring")
126b5969 SO	396	PS1="$ps1pc_start$gitstring$ps1pc_end"
1bfc51ac	397	else
9b7e776c	398	# NO color option unless in PROMPT_COMMAND mode
1bfc51ac SO	399	printf -- "$printf_format" "$c${b##refs/heads/}${f:+ $f}$r$p"
1bfc51ac SO	400	fi
af31a456 FC	401	fi
af31a456 FC	402	}