contrib/completion/git-prompt.sh

   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 repository status 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
  13 #    3a) Change your PS1 to call __git_ps1 as
  14 #        command-substitution:
  15 #        Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
  16 #        ZSH:  setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
  17 #        the optional argument will be used as format string.
  18 #    3b) Alternatively, for a slightly faster prompt, __git_ps1 can
  19 #        be used for PROMPT_COMMAND in Bash or for precmd() in Zsh
  20 #        with two parameters, <pre> and <post>, which are strings
  21 #        you would put in $PS1 before and after the status string
  22 #        generated by the git-prompt machinery.  e.g.
  23 #        Bash: PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
  24 #          will show username, at-sign, host, colon, cwd, then
  25 #          various status string, followed by dollar and SP, as
  26 #          your prompt.
  27 #        ZSH:  precmd () { __git_ps1 "%n" ":%~$ " "|%s" }
  28 #          will show username, pipe, then various status string,
  29 #          followed by colon, cwd, dollar and SP, as your prompt.
  30 #        Optionally, you can supply a third argument with a printf
  31 #        format string to finetune the output of the branch status
  32 #
  33 # The repository status will be displayed only if you are currently in a
  34 # git repository. The %s token is the placeholder for the shown status.
  35 #
  36 # The prompt status always includes the current branch name.
  37 #
  38 # In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
  39 # unstaged (*) and staged (+) changes will be shown next to the branch
  40 # name.  You can configure this per-repository with the
  41 # bash.showDirtyState variable, which defaults to true once
  42 # GIT_PS1_SHOWDIRTYSTATE is enabled.
  43 #
  44 # You can also see if currently something is stashed, by setting
  45 # GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
  46 # then a '$' will be shown next to the branch name.
  47 #
  48 # If you would like to see if there're untracked files, then you can set
  49 # GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked
  50 # files, then a '%' will be shown next to the branch name.  You can
  51 # configure this per-repository with the bash.showUntrackedFiles
  52 # variable, which defaults to true once GIT_PS1_SHOWUNTRACKEDFILES is
  53 # enabled.
  54 #
  55 # If you would like to see the difference between HEAD and its upstream,
  56 # set GIT_PS1_SHOWUPSTREAM="auto".  A "<" indicates you are behind, ">"
  57 # indicates you are ahead, "<>" indicates you have diverged and "="
  58 # indicates that there is no difference. You can further control
  59 # behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated list
  60 # of values:
  61 #
  62 #     verbose       show number of commits ahead/behind (+/-) upstream
  63 #     name          if verbose, then also show the upstream abbrev name
  64 #     legacy        don't use the '--count' option available in recent
  65 #                   versions of git-rev-list
  66 #     git           always compare HEAD to @{upstream}
  67 #     svn           always compare HEAD to your SVN upstream
  68 #
  69 # By default, __git_ps1 will compare HEAD to your SVN upstream if it can
  70 # find one, or @{upstream} otherwise.  Once you have set
  71 # GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
  72 # setting the bash.showUpstream config variable.
  73 #
  74 # You can change the separator between the branch name and the above
  75 # state symbols by setting GIT_PS1_STATESEPARATOR. The default separator
  76 # is SP.
  77 #
  78 # When there is an in-progress operation such as a merge, rebase,
  79 # revert, cherry-pick, or bisect, the prompt will include information
  80 # related to the operation, often in the form "|<OPERATION-NAME>".
  81 #
  82 # When the repository has a sparse-checkout, a notification of the form
  83 # "|SPARSE" will be included in the prompt.  This can be shortened to a
  84 # single '?' character by setting GIT_PS1_COMPRESSSPARSESTATE, or omitted
  85 # by setting GIT_PS1_OMITSPARSESTATE.
  86 #
  87 # If you would like to see a notification on the prompt when there are
  88 # unresolved conflicts, set GIT_PS1_SHOWCONFLICTSTATE to "yes". The
  89 # prompt will include "|CONFLICT".
  90 #
  91 # If you would like to see more information about the identity of
  92 # commits checked out as a detached HEAD, set GIT_PS1_DESCRIBE_STYLE
  93 # to one of these values:
  94 #
  95 #     contains      relative to newer annotated tag (v1.6.3.2~35)
  96 #     branch        relative to newer tag or branch (master~4)
  97 #     describe      relative to older annotated tag (v1.6.3.1-13-gdd42c2f)
  98 #     tag           relative to any older tag (v1.6.3.1-13-gdd42c2f)
  99 #     default       exactly matching tag
 100 #
 101 # If you would like a colored hint about the current dirty state, set
 102 # GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on
 103 # the colored output of "git status -sb".
 104 #
 105 # If you would like __git_ps1 to do nothing in the case when the current
 106 # directory is set up to be ignored by git, then set
 107 # GIT_PS1_HIDE_IF_PWD_IGNORED to a nonempty value. Override this on the
 108 # repository level by setting bash.hideIfPwdIgnored to "false".
 109
 110 # check whether printf supports -v
 111 __git_printf_supports_v=
 112 printf -v __git_printf_supports_v -- '%s' yes >/dev/null 2>&1
 113
 114 # stores the divergence from upstream in $p
 115 # used by GIT_PS1_SHOWUPSTREAM
 116 __git_ps1_show_upstream ()
 117 {
 118         local key value
 119         local svn_remote svn_url_pattern count n
 120         local upstream_type=git legacy="" verbose="" name=""
 121
 122         svn_remote=()
 123         # get some config options from git-config
 124         local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
 125         while read -r key value; do
 126                 case "$key" in
 127                 bash.showupstream)
 128                         GIT_PS1_SHOWUPSTREAM="$value"
 129                         if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
 130                                 p=""
 131                                 return
 132                         fi
 133                         ;;
 134                 svn-remote.*.url)
 135                         svn_remote[$((${#svn_remote[@]} + 1))]="$value"
 136                         svn_url_pattern="$svn_url_pattern\\|$value"
 137                         upstream_type=svn+git # default upstream type is SVN if available, else git
 138                         ;;
 139                 esac
 140         done <<< "$output"
 141
 142         # parse configuration values
 143         local option
 144         for option in ${GIT_PS1_SHOWUPSTREAM-}; do
 145                 case "$option" in
 146                 git|svn) upstream_type="$option" ;;
 147                 verbose) verbose=1 ;;
 148                 legacy)  legacy=1  ;;
 149                 name)    name=1 ;;
 150                 esac
 151         done
 152
 153         # Find our upstream type
 154         case "$upstream_type" in
 155         git)    upstream_type="@{upstream}" ;;
 156         svn*)
 157                 # get the upstream from the "git-svn-id: ..." in a commit message
 158                 # (git-svn uses essentially the same procedure internally)
 159                 local -a svn_upstream
 160                 svn_upstream=($(git log --first-parent -1 \
 161                                         --grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
 162                 if [[ 0 -ne ${#svn_upstream[@]} ]]; then
 163                         svn_upstream=${svn_upstream[${#svn_upstream[@]} - 2]}
 164                         svn_upstream=${svn_upstream%@*}
 165                         local n_stop="${#svn_remote[@]}"
 166                         for ((n=1; n <= n_stop; n++)); do
 167                                 svn_upstream=${svn_upstream#${svn_remote[$n]}}
 168                         done
 169
 170                         if [[ -z "$svn_upstream" ]]; then
 171                                 # default branch name for checkouts with no layout:
 172                                 upstream_type=${GIT_SVN_ID:-git-svn}
 173                         else
 174                                 upstream_type=${svn_upstream#/}
 175                         fi
 176                 elif [[ "svn+git" = "$upstream_type" ]]; then
 177                         upstream_type="@{upstream}"
 178                 fi
 179                 ;;
 180         esac
 181
 182         # Find how many commits we are ahead/behind our upstream
 183         if [[ -z "$legacy" ]]; then
 184                 count="$(git rev-list --count --left-right \
 185                                 "$upstream_type"...HEAD 2>/dev/null)"
 186         else
 187                 # produce equivalent output to --count for older versions of git
 188                 local commits
 189                 if commits="$(git rev-list --left-right "$upstream_type"...HEAD 2>/dev/null)"
 190                 then
 191                         local commit behind=0 ahead=0
 192                         for commit in $commits
 193                         do
 194                                 case "$commit" in
 195                                 "<"*) ((behind++)) ;;
 196                                 *)    ((ahead++))  ;;
 197                                 esac
 198                         done
 199                         count="$behind  $ahead"
 200                 else
 201                         count=""
 202                 fi
 203         fi
 204
 205         # calculate the result
 206         if [[ -z "$verbose" ]]; then
 207                 case "$count" in
 208                 "") # no upstream
 209                         p="" ;;
 210                 "0      0") # equal to upstream
 211                         p="=" ;;
 212                 "0      "*) # ahead of upstream
 213                         p=">" ;;
 214                 *"      0") # behind upstream
 215                         p="<" ;;
 216                 *)          # diverged from upstream
 217                         p="<>" ;;
 218                 esac
 219         else # verbose, set upstream instead of p
 220                 case "$count" in
 221                 "") # no upstream
 222                         upstream="" ;;
 223                 "0      0") # equal to upstream
 224                         upstream="|u=" ;;
 225                 "0      "*) # ahead of upstream
 226                         upstream="|u+${count#0  }" ;;
 227                 *"      0") # behind upstream
 228                         upstream="|u-${count%   0}" ;;
 229                 *)          # diverged from upstream
 230                         upstream="|u+${count#*  }-${count%      *}" ;;
 231                 esac
 232                 if [[ -n "$count" && -n "$name" ]]; then
 233                         __git_ps1_upstream_name=$(git rev-parse \
 234                                 --abbrev-ref "$upstream_type" 2>/dev/null)
 235                         if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then
 236                                 upstream="$upstream \${__git_ps1_upstream_name}"
 237                         else
 238                                 upstream="$upstream ${__git_ps1_upstream_name}"
 239                                 # not needed anymore; keep user's
 240                                 # environment clean
 241                                 unset __git_ps1_upstream_name
 242                         fi
 243                 fi
 244         fi
 245
 246 }
 247
 248 # Helper function that is meant to be called from __git_ps1.  It
 249 # injects color codes into the appropriate gitstring variables used
 250 # to build a gitstring. Colored variables are responsible for clearing
 251 # their own color.
 252 __git_ps1_colorize_gitstring ()
 253 {
 254         if [[ -n ${ZSH_VERSION-} ]]; then
 255                 local c_red='%F{red}'
 256                 local c_green='%F{green}'
 257                 local c_lblue='%F{blue}'
 258                 local c_clear='%f'
 259         else
 260                 # Using \001 and \002 around colors is necessary to prevent
 261                 # issues with command line editing/browsing/completion!
 262                 local c_red=$'\001\e[31m\002'
 263                 local c_green=$'\001\e[32m\002'
 264                 local c_lblue=$'\001\e[1;34m\002'
 265                 local c_clear=$'\001\e[0m\002'
 266         fi
 267         local bad_color=$c_red
 268         local ok_color=$c_green
 269         local flags_color="$c_lblue"
 270
 271         local branch_color=""
 272         if [ $detached = no ]; then
 273                 branch_color="$ok_color"
 274         else
 275                 branch_color="$bad_color"
 276         fi
 277         if [ -n "$c" ]; then
 278                 c="$branch_color$c$c_clear"
 279         fi
 280         b="$branch_color$b$c_clear"
 281
 282         if [ -n "$w" ]; then
 283                 w="$bad_color$w$c_clear"
 284         fi
 285         if [ -n "$i" ]; then
 286                 i="$ok_color$i$c_clear"
 287         fi
 288         if [ -n "$s" ]; then
 289                 s="$flags_color$s$c_clear"
 290         fi
 291         if [ -n "$u" ]; then
 292                 u="$bad_color$u$c_clear"
 293         fi
 294 }
 295
 296 # Helper function to read the first line of a file into a variable.
 297 # __git_eread requires 2 arguments, the file path and the name of the
 298 # variable, in that order.
 299 __git_eread ()
 300 {
 301         test -r "$1" && IFS=$'\r\n' read -r "$2" <"$1"
 302 }
 303
 304 # see if a cherry-pick or revert is in progress, if the user has committed a
 305 # conflict resolution with 'git commit' in the middle of a sequence of picks or
 306 # reverts then CHERRY_PICK_HEAD/REVERT_HEAD will not exist so we have to read
 307 # the todo file.
 308 __git_sequencer_status ()
 309 {
 310         local todo
 311         if test -f "$g/CHERRY_PICK_HEAD"
 312         then
 313                 r="|CHERRY-PICKING"
 314                 return 0;
 315         elif test -f "$g/REVERT_HEAD"
 316         then
 317                 r="|REVERTING"
 318                 return 0;
 319         elif __git_eread "$g/sequencer/todo" todo
 320         then
 321                 case "$todo" in
 322                 p[\ \   ]|pick[\ \      ]*)
 323                         r="|CHERRY-PICKING"
 324                         return 0
 325                 ;;
 326                 revert[\ \      ]*)
 327                         r="|REVERTING"
 328                         return 0
 329                 ;;
 330                 esac
 331         fi
 332         return 1
 333 }
 334
 335 # __git_ps1 accepts 0 or 1 arguments (i.e., format string)
 336 # when called from PS1 using command substitution
 337 # in this mode it prints text to add to bash PS1 prompt (includes branch name)
 338 #
 339 # __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc)
 340 # in that case it _sets_ PS1. The arguments are parts of a PS1 string.
 341 # when two arguments are given, the first is prepended and the second appended
 342 # to the state string when assigned to PS1.
 343 # The optional third parameter will be used as printf format string to further
 344 # customize the output of the git-status string.
 345 # In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true
 346 __git_ps1 ()
 347 {
 348         # preserve exit status
 349         local exit=$?
 350         local pcmode=no
 351         local detached=no
 352         local ps1pc_start='\u@\h:\w '
 353         local ps1pc_end='\$ '
 354         local printf_format=' (%s)'
 355
 356         case "$#" in
 357                 2|3)    pcmode=yes
 358                         ps1pc_start="$1"
 359                         ps1pc_end="$2"
 360                         printf_format="${3:-$printf_format}"
 361                         # set PS1 to a plain prompt so that we can
 362                         # simply return early if the prompt should not
 363                         # be decorated
 364                         PS1="$ps1pc_start$ps1pc_end"
 365                 ;;
 366                 0|1)    printf_format="${1:-$printf_format}"
 367                 ;;
 368                 *)      return $exit
 369                 ;;
 370         esac
 371
 372         # ps1_expanded:  This variable is set to 'yes' if the shell
 373         # subjects the value of PS1 to parameter expansion:
 374         #
 375         #   * bash does unless the promptvars option is disabled
 376         #   * zsh does not unless the PROMPT_SUBST option is set
 377         #   * POSIX shells always do
 378         #
 379         # If the shell would expand the contents of PS1 when drawing
 380         # the prompt, a raw ref name must not be included in PS1.
 381         # This protects the user from arbitrary code execution via
 382         # specially crafted ref names.  For example, a ref named
 383         # 'refs/heads/$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' might cause the
 384         # shell to execute 'sudo rm -rf /' when the prompt is drawn.
 385         #
 386         # Instead, the ref name should be placed in a separate global
 387         # variable (in the __git_ps1_* namespace to avoid colliding
 388         # with the user's environment) and that variable should be
 389         # referenced from PS1.  For example:
 390         #
 391         #     __git_ps1_foo=$(do_something_to_get_ref_name)
 392         #     PS1="...stuff...\${__git_ps1_foo}...stuff..."
 393         #
 394         # If the shell does not expand the contents of PS1, the raw
 395         # ref name must be included in PS1.
 396         #
 397         # The value of this variable is only relevant when in pcmode.
 398         #
 399         # Assume that the shell follows the POSIX specification and
 400         # expands PS1 unless determined otherwise.  (This is more
 401         # likely to be correct if the user has a non-bash, non-zsh
 402         # shell and safer than the alternative if the assumption is
 403         # incorrect.)
 404         #
 405         local ps1_expanded=yes
 406         [ -z "${ZSH_VERSION-}" ] || [[ -o PROMPT_SUBST ]] || ps1_expanded=no
 407         [ -z "${BASH_VERSION-}" ] || shopt -q promptvars || ps1_expanded=no
 408
 409         local repo_info rev_parse_exit_code
 410         repo_info="$(git rev-parse --git-dir --is-inside-git-dir \
 411                 --is-bare-repository --is-inside-work-tree --show-ref-format \
 412                 --short HEAD 2>/dev/null)"
 413         rev_parse_exit_code="$?"
 414
 415         if [ -z "$repo_info" ]; then
 416                 return $exit
 417         fi
 418
 419         local short_sha=""
 420         if [ "$rev_parse_exit_code" = "0" ]; then
 421                 short_sha="${repo_info##*$'\n'}"
 422                 repo_info="${repo_info%$'\n'*}"
 423         fi
 424         local ref_format="${repo_info##*$'\n'}"
 425         repo_info="${repo_info%$'\n'*}"
 426         local inside_worktree="${repo_info##*$'\n'}"
 427         repo_info="${repo_info%$'\n'*}"
 428         local bare_repo="${repo_info##*$'\n'}"
 429         repo_info="${repo_info%$'\n'*}"
 430         local inside_gitdir="${repo_info##*$'\n'}"
 431         local g="${repo_info%$'\n'*}"
 432
 433         if [ "true" = "$inside_worktree" ] &&
 434            [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED-}" ] &&
 435            [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] &&
 436            git check-ignore -q .
 437         then
 438                 return $exit
 439         fi
 440
 441         local sparse=""
 442         if [ -z "${GIT_PS1_COMPRESSSPARSESTATE-}" ] &&
 443            [ -z "${GIT_PS1_OMITSPARSESTATE-}" ] &&
 444            [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
 445                 sparse="|SPARSE"
 446         fi
 447
 448         local r=""
 449         local b=""
 450         local step=""
 451         local total=""
 452         if [ -d "$g/rebase-merge" ]; then
 453                 __git_eread "$g/rebase-merge/head-name" b
 454                 __git_eread "$g/rebase-merge/msgnum" step
 455                 __git_eread "$g/rebase-merge/end" total
 456                 r="|REBASE"
 457         else
 458                 if [ -d "$g/rebase-apply" ]; then
 459                         __git_eread "$g/rebase-apply/next" step
 460                         __git_eread "$g/rebase-apply/last" total
 461                         if [ -f "$g/rebase-apply/rebasing" ]; then
 462                                 __git_eread "$g/rebase-apply/head-name" b
 463                                 r="|REBASE"
 464                         elif [ -f "$g/rebase-apply/applying" ]; then
 465                                 r="|AM"
 466                         else
 467                                 r="|AM/REBASE"
 468                         fi
 469                 elif [ -f "$g/MERGE_HEAD" ]; then
 470                         r="|MERGING"
 471                 elif __git_sequencer_status; then
 472                         :
 473                 elif [ -f "$g/BISECT_LOG" ]; then
 474                         r="|BISECTING"
 475                 fi
 476
 477                 if [ -n "$b" ]; then
 478                         :
 479                 elif [ -h "$g/HEAD" ]; then
 480                         # symlink symbolic ref
 481                         b="$(git symbolic-ref HEAD 2>/dev/null)"
 482                 else
 483                         local head=""
 484
 485                         case "$ref_format" in
 486                         files)
 487                                 if ! __git_eread "$g/HEAD" head; then
 488                                         return $exit
 489                                 fi
 490
 491                                 if [[ $head == "ref: "* ]]; then
 492                                         head="${head#ref: }"
 493                                 else
 494                                         head=""
 495                                 fi
 496                                 ;;
 497                         *)
 498                                 head="$(git symbolic-ref HEAD 2>/dev/null)"
 499                                 ;;
 500                         esac
 501
 502                         if test -z "$head"; then
 503                                 detached=yes
 504                                 b="$(
 505                                 case "${GIT_PS1_DESCRIBE_STYLE-}" in
 506                                 (contains)
 507                                         git describe --contains HEAD ;;
 508                                 (branch)
 509                                         git describe --contains --all HEAD ;;
 510                                 (tag)
 511                                         git describe --tags HEAD ;;
 512                                 (describe)
 513                                         git describe HEAD ;;
 514                                 (* | default)
 515                                         git describe --tags --exact-match HEAD ;;
 516                                 esac 2>/dev/null)" ||
 517
 518                                 b="$short_sha..."
 519                                 b="($b)"
 520                         else
 521                                 b="$head"
 522                         fi
 523                 fi
 524         fi
 525
 526         if [ -n "$step" ] && [ -n "$total" ]; then
 527                 r="$r $step/$total"
 528         fi
 529
 530         local conflict="" # state indicator for unresolved conflicts
 531         if [[ "${GIT_PS1_SHOWCONFLICTSTATE-}" == "yes" ]] &&
 532            [[ $(git ls-files --unmerged 2>/dev/null) ]]; then
 533                 conflict="|CONFLICT"
 534         fi
 535
 536         local w=""
 537         local i=""
 538         local s=""
 539         local u=""
 540         local h=""
 541         local c=""
 542         local p="" # short version of upstream state indicator
 543         local upstream="" # verbose version of upstream state indicator
 544
 545         if [ "true" = "$inside_gitdir" ]; then
 546                 if [ "true" = "$bare_repo" ]; then
 547                         c="BARE:"
 548                 else
 549                         b="GIT_DIR!"
 550                 fi
 551         elif [ "true" = "$inside_worktree" ]; then
 552                 if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] &&
 553                    [ "$(git config --bool bash.showDirtyState)" != "false" ]
 554                 then
 555                         git diff --no-ext-diff --quiet || w="*"
 556                         git diff --no-ext-diff --cached --quiet || i="+"
 557                         if [ -z "$short_sha" ] && [ -z "$i" ]; then
 558                                 i="#"
 559                         fi
 560                 fi
 561                 if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] &&
 562                    git rev-parse --verify --quiet refs/stash >/dev/null
 563                 then
 564                         s="$"
 565                 fi
 566
 567                 if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
 568                    [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
 569                    git ls-files --others --exclude-standard --directory --no-empty-directory --error-unmatch -- ':/*' >/dev/null 2>/dev/null
 570                 then
 571                         u="%${ZSH_VERSION+%}"
 572                 fi
 573
 574                 if [ -n "${GIT_PS1_COMPRESSSPARSESTATE-}" ] &&
 575                    [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
 576                         h="?"
 577                 fi
 578
 579                 if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
 580                         __git_ps1_show_upstream
 581                 fi
 582         fi
 583
 584         local z="${GIT_PS1_STATESEPARATOR-" "}"
 585
 586         b=${b##refs/heads/}
 587         if [ $pcmode = yes ] && [ $ps1_expanded = yes ]; then
 588                 __git_ps1_branch_name=$b
 589                 b="\${__git_ps1_branch_name}"
 590         fi
 591
 592         if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
 593                 __git_ps1_colorize_gitstring
 594         fi
 595
 596         local f="$h$w$i$s$u$p"
 597         local gitstring="$c$b${f:+$z$f}${sparse}$r${upstream}${conflict}"
 598
 599         if [ $pcmode = yes ]; then
 600                 if [ "${__git_printf_supports_v-}" != yes ]; then
 601                         gitstring=$(printf -- "$printf_format" "$gitstring")
 602                 else
 603                         printf -v gitstring -- "$printf_format" "$gitstring"
 604                 fi
 605                 PS1="$ps1pc_start$gitstring$ps1pc_end"
 606         else
 607                 printf -- "$printf_format" "$gitstring"
 608         fi
 609
 610         return $exit
 611 }