Git fork
at reftables-rust 672 lines 21 kB view raw
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/.profile: 12# . ~/.git-prompt.sh # dot path/to/this-file 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# See notes below about compatibility with other shells. 34# 35# The repository status will be displayed only if you are currently in a 36# git repository. The %s token is the placeholder for the shown status. 37# 38# The prompt status always includes the current branch name. 39# 40# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value, 41# unstaged (*) and staged (+) changes will be shown next to the branch 42# name. You can configure this per-repository with the 43# bash.showDirtyState variable, which defaults to true once 44# GIT_PS1_SHOWDIRTYSTATE is enabled. 45# 46# You can also see if currently something is stashed, by setting 47# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed, 48# then a '$' will be shown next to the branch name. 49# 50# If you would like to see if there're untracked files, then you can set 51# GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're untracked 52# files, then a '%' will be shown next to the branch name. You can 53# configure this per-repository with the bash.showUntrackedFiles 54# variable, which defaults to true once GIT_PS1_SHOWUNTRACKEDFILES is 55# enabled. 56# 57# If you would like to see the difference between HEAD and its upstream, 58# set GIT_PS1_SHOWUPSTREAM="auto". A "<" indicates you are behind, ">" 59# indicates you are ahead, "<>" indicates you have diverged and "=" 60# indicates that there is no difference. You can further control 61# behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated list 62# of values: 63# 64# verbose show number of commits ahead/behind (+/-) upstream 65# name if verbose, then also show the upstream abbrev name 66# legacy don't use the '--count' option available in recent 67# versions of git-rev-list 68# git always compare HEAD to @{upstream} 69# svn always compare HEAD to your SVN upstream 70# 71# By default, __git_ps1 will compare HEAD to your SVN upstream if it can 72# find one, or @{upstream} otherwise. Once you have set 73# GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by 74# setting the bash.showUpstream config variable. 75# 76# You can change the separator between the branch name and the above 77# state symbols by setting GIT_PS1_STATESEPARATOR. The default separator 78# is SP. 79# 80# When there is an in-progress operation such as a merge, rebase, 81# revert, cherry-pick, or bisect, the prompt will include information 82# related to the operation, often in the form "|<OPERATION-NAME>". 83# 84# When the repository has a sparse-checkout, a notification of the form 85# "|SPARSE" will be included in the prompt. This can be shortened to a 86# single '?' character by setting GIT_PS1_COMPRESSSPARSESTATE, or omitted 87# by setting GIT_PS1_OMITSPARSESTATE. 88# 89# If you would like to see a notification on the prompt when there are 90# unresolved conflicts, set GIT_PS1_SHOWCONFLICTSTATE to "yes". The 91# prompt will include "|CONFLICT". 92# 93# If you would like to see more information about the identity of 94# commits checked out as a detached HEAD, set GIT_PS1_DESCRIBE_STYLE 95# to one of these values: 96# 97# contains relative to newer annotated tag (v1.6.3.2~35) 98# branch relative to newer tag or branch (master~4) 99# describe relative to older annotated tag (v1.6.3.1-13-gdd42c2f) 100# tag relative to any older tag (v1.6.3.1-13-gdd42c2f) 101# default exactly matching tag 102# 103# If you would like a colored hint about the current dirty state, set 104# GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on 105# the colored output of "git status -sb". 106# 107# If you would like __git_ps1 to do nothing in the case when the current 108# directory is set up to be ignored by git, then set 109# GIT_PS1_HIDE_IF_PWD_IGNORED to a nonempty value. Override this on the 110# repository level by setting bash.hideIfPwdIgnored to "false". 111# 112# Compatibility with other shells (beyond bash/zsh): 113# 114# We require posix-ish shell plus "local" support, which is most 115# shells (even pdksh), but excluding ksh93 (because no "local"). 116# 117# Prompt integration might differ between shells, but the gist is 118# to load it once on shell init with '. path/to/git-prompt.sh', 119# set GIT_PS1* vars once as needed, and either place $(__git_ps1..) 120# inside PS1 once (0/1 args), or, before each prompt is displayed, 121# call __git_ps1 (2/3 args) which sets PS1 with the status embedded. 122# 123# Many shells support the 1st method of command substitution, 124# though some might need to first enable cmd substitution in PS1. 125# 126# When using colors, each escape sequence is wrapped between byte 127# values 1 and 2 (control chars SOH, STX, respectively), which are 128# invisible at the output, but for bash/readline they mark 0-width 129# strings (SGR color sequences) when calculating the on-screen 130# prompt width, to maintain correct input editing at the prompt. 131# 132# To replace or disable the 0-width markers, set GIT_PS1_COLOR_PRE 133# and GIT_PS1_COLOR_POST to other markers, or empty (nul) to not 134# use markers. For instance, some shells support '\[' and '\]' as 135# start/end markers in PS1 - when invoking __git_ps1 with 3/4 args, 136# but it may or may not work in command substitution mode. YMMV. 137# 138# If the shell doesn't support 0-width markers and editing behaves 139# incorrectly when using colors in __git_ps1, then, other than 140# disabling color, it might be solved using multi-line prompt, 141# where the git status is not at the last line, e.g.: 142# PS1='\n\w \u@\h$(__git_ps1 " (%s)")\n\$ ' 143 144# check whether printf supports -v 145__git_printf_supports_v= 146printf -v __git_printf_supports_v -- '%s' yes >/dev/null 2>&1 147 148# like __git_SOH=$'\001' etc but works also in shells without $'...' 149eval "$(printf ' 150 __git_SOH="\001" __git_STX="\002" __git_ESC="\033" 151 __git_LF="\n" __git_CRLF="\r\n" 152')" 153 154# stores the divergence from upstream in $p 155# used by GIT_PS1_SHOWUPSTREAM 156__git_ps1_show_upstream () 157{ 158 local key value 159 local svn_remotes="" svn_url_pattern="" count n 160 local upstream_type=git legacy="" verbose="" name="" 161 local LF="$__git_LF" 162 163 # get some config options from git-config 164 local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')" 165 while read -r key value; do 166 case "$key" in 167 bash.showupstream) 168 GIT_PS1_SHOWUPSTREAM="$value" 169 if [ -z "${GIT_PS1_SHOWUPSTREAM}" ]; then 170 p="" 171 return 172 fi 173 ;; 174 svn-remote.*.url) 175 svn_remotes=${svn_remotes}${value}${LF} # URI\nURI\n... 176 svn_url_pattern="$svn_url_pattern\\|$value" 177 upstream_type=svn+git # default upstream type is SVN if available, else git 178 ;; 179 esac 180 done <<-OUTPUT 181 $output 182 OUTPUT 183 184 # parse configuration values 185 local option 186 for option in ${GIT_PS1_SHOWUPSTREAM-}; do 187 case "$option" in 188 git|svn) upstream_type="$option" ;; 189 verbose) verbose=1 ;; 190 legacy) legacy=1 ;; 191 name) name=1 ;; 192 esac 193 done 194 195 # Find our upstream type 196 case "$upstream_type" in 197 git) upstream_type="@{upstream}" ;; 198 svn*) 199 # successful svn-upstream resolution: 200 # - get the list of configured svn-remotes ($svn_remotes set above) 201 # - get the last commit which seems from one of our svn-remotes 202 # - confirm that it is from one of the svn-remotes 203 # - use $GIT_SVN_ID if set, else "git-svn" 204 205 # get upstream from "git-svn-id: UPSTRM@N HASH" in a commit message 206 # (git-svn uses essentially the same procedure internally) 207 local svn_upstream="$( 208 git log --first-parent -1 \ 209 --grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null 210 )" 211 212 if [ -n "$svn_upstream" ]; then 213 # extract the URI, assuming --grep matched the last line 214 svn_upstream=${svn_upstream##*$LF} # last line 215 svn_upstream=${svn_upstream#*: } # UPSTRM@N HASH 216 svn_upstream=${svn_upstream%@*} # UPSTRM 217 218 case ${LF}${svn_remotes} in 219 *"${LF}${svn_upstream}${LF}"*) 220 # grep indeed matched the last line - it's our remote 221 # default branch name for checkouts with no layout: 222 upstream_type=${GIT_SVN_ID:-git-svn} 223 ;; 224 *) 225 # the commit message includes one of our remotes, but 226 # it's not at the last line. is $svn_upstream junk? 227 upstream_type=${svn_upstream#/} 228 ;; 229 esac 230 elif [ "svn+git" = "$upstream_type" ]; then 231 upstream_type="@{upstream}" 232 fi 233 ;; 234 esac 235 236 # Find how many commits we are ahead/behind our upstream 237 if [ -z "$legacy" ]; then 238 count="$(git rev-list --count --left-right \ 239 "$upstream_type"...HEAD 2>/dev/null)" 240 else 241 # produce equivalent output to --count for older versions of git 242 local commits 243 if commits="$(git rev-list --left-right "$upstream_type"...HEAD 2>/dev/null)" 244 then 245 local commit behind=0 ahead=0 246 for commit in $commits 247 do 248 case "$commit" in 249 "<"*) behind=$((behind+1)) ;; 250 *) ahead=$((ahead+1)) ;; 251 esac 252 done 253 count="$behind $ahead" 254 else 255 count="" 256 fi 257 fi 258 259 # calculate the result 260 if [ -z "$verbose" ]; then 261 case "$count" in 262 "") # no upstream 263 p="" ;; 264 "0 0") # equal to upstream 265 p="=" ;; 266 "0 "*) # ahead of upstream 267 p=">" ;; 268 *" 0") # behind upstream 269 p="<" ;; 270 *) # diverged from upstream 271 p="<>" ;; 272 esac 273 else # verbose, set upstream instead of p 274 case "$count" in 275 "") # no upstream 276 upstream="" ;; 277 "0 0") # equal to upstream 278 upstream="|u=" ;; 279 "0 "*) # ahead of upstream 280 upstream="|u+${count#0 }" ;; 281 *" 0") # behind upstream 282 upstream="|u-${count% 0}" ;; 283 *) # diverged from upstream 284 upstream="|u+${count#* }-${count% *}" ;; 285 esac 286 if [ -n "$count" ] && [ -n "$name" ]; then 287 __git_ps1_upstream_name=$(git rev-parse \ 288 --abbrev-ref "$upstream_type" 2>/dev/null) 289 if [ "$pcmode" = yes ] && [ "$ps1_expanded" = yes ]; then 290 upstream="$upstream \${__git_ps1_upstream_name}" 291 else 292 upstream="$upstream ${__git_ps1_upstream_name}" 293 # not needed anymore; keep user's 294 # environment clean 295 unset __git_ps1_upstream_name 296 fi 297 fi 298 fi 299 300} 301 302# Helper function that is meant to be called from __git_ps1. It 303# injects color codes into the appropriate gitstring variables used 304# to build a gitstring. Colored variables are responsible for clearing 305# their own color. 306__git_ps1_colorize_gitstring () 307{ 308 if [ -n "${ZSH_VERSION-}" ]; then 309 local c_red='%F{red}' 310 local c_green='%F{green}' 311 local c_lblue='%F{blue}' 312 local c_clear='%f' 313 else 314 # \001 (SOH) and \002 (STX) are 0-width substring markers 315 # which bash/readline identify while calculating the prompt 316 # on-screen width - to exclude 0-screen-width esc sequences. 317 local c_pre="${GIT_PS1_COLOR_PRE-$__git_SOH}${__git_ESC}[" 318 local c_post="m${GIT_PS1_COLOR_POST-$__git_STX}" 319 320 local c_red="${c_pre}31${c_post}" 321 local c_green="${c_pre}32${c_post}" 322 local c_lblue="${c_pre}1;34${c_post}" 323 local c_clear="${c_pre}0${c_post}" 324 fi 325 local bad_color="$c_red" 326 local ok_color="$c_green" 327 local flags_color="$c_lblue" 328 329 local branch_color="" 330 if [ "$detached" = no ]; then 331 branch_color="$ok_color" 332 else 333 branch_color="$bad_color" 334 fi 335 if [ -n "$c" ]; then 336 c="$branch_color$c$c_clear" 337 fi 338 b="$branch_color$b$c_clear" 339 340 if [ -n "$w" ]; then 341 w="$bad_color$w$c_clear" 342 fi 343 if [ -n "$i" ]; then 344 i="$ok_color$i$c_clear" 345 fi 346 if [ -n "$s" ]; then 347 s="$flags_color$s$c_clear" 348 fi 349 if [ -n "$u" ]; then 350 u="$bad_color$u$c_clear" 351 fi 352} 353 354# Helper function to read the first line of a file into a variable. 355# __git_eread requires 2 arguments, the file path and the name of the 356# variable, in that order. 357__git_eread () 358{ 359 test -r "$1" && IFS=$__git_CRLF read -r "$2" <"$1" 360} 361 362# see if a cherry-pick or revert is in progress, if the user has committed a 363# conflict resolution with 'git commit' in the middle of a sequence of picks or 364# reverts then CHERRY_PICK_HEAD/REVERT_HEAD will not exist so we have to read 365# the todo file. 366__git_sequencer_status () 367{ 368 local todo 369 if test -f "$g/CHERRY_PICK_HEAD" 370 then 371 r="|CHERRY-PICKING" 372 return 0; 373 elif test -f "$g/REVERT_HEAD" 374 then 375 r="|REVERTING" 376 return 0; 377 elif __git_eread "$g/sequencer/todo" todo 378 then 379 case "$todo" in 380 p[\ \ ]|pick[\ \ ]*) 381 r="|CHERRY-PICKING" 382 return 0 383 ;; 384 revert[\ \ ]*) 385 r="|REVERTING" 386 return 0 387 ;; 388 esac 389 fi 390 return 1 391} 392 393# __git_ps1 accepts 0 or 1 arguments (i.e., format string) 394# when called from PS1 using command substitution 395# in this mode it prints text to add to bash PS1 prompt (includes branch name) 396# 397# __git_ps1 requires 2 or 3 arguments when called from PROMPT_COMMAND (pc) 398# in that case it _sets_ PS1. The arguments are parts of a PS1 string. 399# when two arguments are given, the first is prepended and the second appended 400# to the state string when assigned to PS1. 401# The optional third parameter will be used as printf format string to further 402# customize the output of the git-status string. 403# In this mode you can request colored hints using GIT_PS1_SHOWCOLORHINTS=true 404__git_ps1 () 405{ 406 # preserve exit status 407 local exit="$?" 408 local pcmode=no 409 local detached=no 410 local ps1pc_start='\u@\h:\w ' 411 local ps1pc_end='\$ ' 412 local printf_format=' (%s)' 413 414 case "$#" in 415 2|3) pcmode=yes 416 ps1pc_start="$1" 417 ps1pc_end="$2" 418 printf_format="${3:-$printf_format}" 419 # set PS1 to a plain prompt so that we can 420 # simply return early if the prompt should not 421 # be decorated 422 PS1="$ps1pc_start$ps1pc_end" 423 ;; 424 0|1) printf_format="${1:-$printf_format}" 425 ;; 426 *) return "$exit" 427 ;; 428 esac 429 430 # ps1_expanded: This variable is set to 'yes' if the shell 431 # subjects the value of PS1 to parameter expansion: 432 # 433 # * bash does unless the promptvars option is disabled 434 # * zsh does not unless the PROMPT_SUBST option is set 435 # * POSIX shells always do 436 # 437 # If the shell would expand the contents of PS1 when drawing 438 # the prompt, a raw ref name must not be included in PS1. 439 # This protects the user from arbitrary code execution via 440 # specially crafted ref names. For example, a ref named 441 # 'refs/heads/$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)' might cause the 442 # shell to execute 'sudo rm -rf /' when the prompt is drawn. 443 # 444 # Instead, the ref name should be placed in a separate global 445 # variable (in the __git_ps1_* namespace to avoid colliding 446 # with the user's environment) and that variable should be 447 # referenced from PS1. For example: 448 # 449 # __git_ps1_foo=$(do_something_to_get_ref_name) 450 # PS1="...stuff...\${__git_ps1_foo}...stuff..." 451 # 452 # If the shell does not expand the contents of PS1, the raw 453 # ref name must be included in PS1. 454 # 455 # The value of this variable is only relevant when in pcmode. 456 # 457 # Assume that the shell follows the POSIX specification and 458 # expands PS1 unless determined otherwise. (This is more 459 # likely to be correct if the user has a non-bash, non-zsh 460 # shell and safer than the alternative if the assumption is 461 # incorrect.) 462 # 463 local ps1_expanded=yes 464 [ -z "${ZSH_VERSION-}" ] || eval '[[ -o PROMPT_SUBST ]]' || ps1_expanded=no 465 [ -z "${BASH_VERSION-}" ] || shopt -q promptvars || ps1_expanded=no 466 467 local repo_info rev_parse_exit_code 468 repo_info="$(git rev-parse --git-dir --is-inside-git-dir \ 469 --is-bare-repository --is-inside-work-tree --show-ref-format \ 470 --short HEAD 2>/dev/null)" 471 rev_parse_exit_code="$?" 472 473 if [ -z "$repo_info" ]; then 474 return "$exit" 475 fi 476 477 local LF="$__git_LF" 478 local short_sha="" 479 if [ "$rev_parse_exit_code" = "0" ]; then 480 short_sha="${repo_info##*$LF}" 481 repo_info="${repo_info%$LF*}" 482 fi 483 local ref_format="${repo_info##*$LF}" 484 repo_info="${repo_info%$LF*}" 485 local inside_worktree="${repo_info##*$LF}" 486 repo_info="${repo_info%$LF*}" 487 local bare_repo="${repo_info##*$LF}" 488 repo_info="${repo_info%$LF*}" 489 local inside_gitdir="${repo_info##*$LF}" 490 local g="${repo_info%$LF*}" 491 492 if [ "true" = "$inside_worktree" ] && 493 [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED-}" ] && 494 [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] && 495 git check-ignore -q . 496 then 497 return "$exit" 498 fi 499 500 local sparse="" 501 if [ -z "${GIT_PS1_COMPRESSSPARSESTATE-}" ] && 502 [ -z "${GIT_PS1_OMITSPARSESTATE-}" ] && 503 [ "$(git config --bool core.sparseCheckout)" = "true" ]; then 504 sparse="|SPARSE" 505 fi 506 507 local r="" 508 local b="" 509 local step="" 510 local total="" 511 if [ -d "$g/rebase-merge" ]; then 512 __git_eread "$g/rebase-merge/head-name" b 513 __git_eread "$g/rebase-merge/msgnum" step 514 __git_eread "$g/rebase-merge/end" total 515 r="|REBASE" 516 else 517 if [ -d "$g/rebase-apply" ]; then 518 __git_eread "$g/rebase-apply/next" step 519 __git_eread "$g/rebase-apply/last" total 520 if [ -f "$g/rebase-apply/rebasing" ]; then 521 __git_eread "$g/rebase-apply/head-name" b 522 r="|REBASE" 523 elif [ -f "$g/rebase-apply/applying" ]; then 524 r="|AM" 525 else 526 r="|AM/REBASE" 527 fi 528 elif [ -f "$g/MERGE_HEAD" ]; then 529 r="|MERGING" 530 elif __git_sequencer_status; then 531 : 532 elif [ -f "$g/BISECT_LOG" ]; then 533 r="|BISECTING" 534 fi 535 536 if [ -n "$b" ]; then 537 : 538 elif [ -h "$g/HEAD" ]; then 539 # symlink symbolic ref 540 b="$(git symbolic-ref HEAD 2>/dev/null)" 541 else 542 local head="" 543 544 case "$ref_format" in 545 files) 546 if ! __git_eread "$g/HEAD" head; then 547 return "$exit" 548 fi 549 550 case $head in 551 "ref: "*) 552 head="${head#ref: }" 553 ;; 554 *) 555 head="" 556 esac 557 ;; 558 *) 559 head="$(git symbolic-ref HEAD 2>/dev/null)" 560 ;; 561 esac 562 563 if test -z "$head"; then 564 detached=yes 565 b="$( 566 case "${GIT_PS1_DESCRIBE_STYLE-}" in 567 (contains) 568 git describe --contains HEAD ;; 569 (branch) 570 git describe --contains --all HEAD ;; 571 (tag) 572 git describe --tags HEAD ;; 573 (describe) 574 git describe HEAD ;; 575 (* | default) 576 git describe --tags --exact-match HEAD ;; 577 esac 2>/dev/null)" || 578 579 b="$short_sha..." 580 b="($b)" 581 else 582 b="$head" 583 fi 584 fi 585 fi 586 587 if [ -n "$step" ] && [ -n "$total" ]; then 588 r="$r $step/$total" 589 fi 590 591 local conflict="" # state indicator for unresolved conflicts 592 if [ "${GIT_PS1_SHOWCONFLICTSTATE-}" = "yes" ] && 593 [ "$(git ls-files --unmerged 2>/dev/null)" ]; then 594 conflict="|CONFLICT" 595 fi 596 597 local w="" 598 local i="" 599 local s="" 600 local u="" 601 local h="" 602 local c="" 603 local p="" # short version of upstream state indicator 604 local upstream="" # verbose version of upstream state indicator 605 606 if [ "true" = "$inside_gitdir" ]; then 607 if [ "true" = "$bare_repo" ]; then 608 c="BARE:" 609 else 610 b="GIT_DIR!" 611 fi 612 elif [ "true" = "$inside_worktree" ]; then 613 if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] && 614 [ "$(git config --bool bash.showDirtyState)" != "false" ] 615 then 616 git diff --no-ext-diff --quiet || w="*" 617 git diff --no-ext-diff --cached --quiet || i="+" 618 if [ -z "$short_sha" ] && [ -z "$i" ]; then 619 i="#" 620 fi 621 fi 622 if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] && 623 git rev-parse --verify --quiet refs/stash >/dev/null 624 then 625 s="$" 626 fi 627 628 if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] && 629 [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] && 630 git ls-files --others --exclude-standard --directory --no-empty-directory --error-unmatch -- ':/*' >/dev/null 2>/dev/null 631 then 632 u="%${ZSH_VERSION+%}" 633 fi 634 635 if [ -n "${GIT_PS1_COMPRESSSPARSESTATE-}" ] && 636 [ "$(git config --bool core.sparseCheckout)" = "true" ]; then 637 h="?" 638 fi 639 640 if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then 641 __git_ps1_show_upstream 642 fi 643 fi 644 645 local z="${GIT_PS1_STATESEPARATOR- }" 646 647 b=${b##refs/heads/} 648 if [ "$pcmode" = yes ] && [ "$ps1_expanded" = yes ]; then 649 __git_ps1_branch_name=$b 650 b="\${__git_ps1_branch_name}" 651 fi 652 653 if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then 654 __git_ps1_colorize_gitstring 655 fi 656 657 local f="$h$w$i$s$u$p" 658 local gitstring="$c$b${f:+$z$f}${sparse}$r${upstream}${conflict}" 659 660 if [ "$pcmode" = yes ]; then 661 if [ "${__git_printf_supports_v-}" != yes ]; then 662 gitstring=$(printf -- "$printf_format" "$gitstring") 663 else 664 printf -v gitstring -- "$printf_format" "$gitstring" 665 fi 666 PS1="$ps1pc_start$gitstring$ps1pc_end" 667 else 668 printf -- "$printf_format" "$gitstring" 669 fi 670 671 return "$exit" 672}