contrib/completion/git-completion.bash

   1 # bash/zsh completion support for core Git.
   2 #
   3 # Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
   4 # Conceptually based on gitcompletion (http://gitweb.hawaga.org.uk/).
   5 # Distributed under the GNU General Public License, version 2.0.
   6 #
   7 # The contained completion routines provide support for completing:
   8 #
   9 #    *) local and remote branch names
  10 #    *) local and remote tag names
  11 #    *) .git/remotes file names
  12 #    *) git 'subcommands'
  13 #    *) git email aliases for git-send-email
  14 #    *) tree paths within 'ref:path/to/file' expressions
  15 #    *) file paths within current working directory and index
  16 #    *) common --long-options
  17 #
  18 # To use these routines:
  19 #
  20 #    1) Copy this file to somewhere (e.g. ~/.git-completion.bash).
  21 #    2) Add the following line to your .bashrc/.zshrc:
  22 #        source ~/.git-completion.bash
  23 #    3) Consider changing your PS1 to also show the current branch,
  24 #       see git-prompt.sh for details.
  25 #
  26 # If you use complex aliases of form '!f() { ... }; f', you can use the null
  27 # command ':' as the first command in the function body to declare the desired
  28 # completion style.  For example '!f() { : git commit ; ... }; f' will
  29 # tell the completion to use commit completion.  This also works with aliases
  30 # of form "!sh -c '...'".  For example, "!sh -c ': git commit ; ... '".
  31 #
  32 # Compatible with bash 3.2.57.
  33 #
  34 # You can set the following environment variables to influence the behavior of
  35 # the completion routines:
  36 #
  37 #   GIT_COMPLETION_CHECKOUT_NO_GUESS
  38 #
  39 #     When set to "1", do not include "DWIM" suggestions in git-checkout
  40 #     completion (e.g., completing "foo" when "origin/foo" exists).
  41
  42 case "$COMP_WORDBREAKS" in
  43 *:*) : great ;;
  44 *)   COMP_WORDBREAKS="$COMP_WORDBREAKS:"
  45 esac
  46
  47 # Discovers the path to the git repository taking any '--git-dir=<path>' and
  48 # '-C <path>' options into account and stores it in the $__git_repo_path
  49 # variable.
  50 __git_find_repo_path ()
  51 {
  52         if [ -n "$__git_repo_path" ]; then
  53                 # we already know where it is
  54                 return
  55         fi
  56
  57         if [ -n "${__git_C_args-}" ]; then
  58                 __git_repo_path="$(git "${__git_C_args[@]}" \
  59                         ${__git_dir:+--git-dir="$__git_dir"} \
  60                         rev-parse --absolute-git-dir 2>/dev/null)"
  61         elif [ -n "${__git_dir-}" ]; then
  62                 test -d "$__git_dir" &&
  63                 __git_repo_path="$__git_dir"
  64         elif [ -n "${GIT_DIR-}" ]; then
  65                 test -d "${GIT_DIR-}" &&
  66                 __git_repo_path="$GIT_DIR"
  67         elif [ -d .git ]; then
  68                 __git_repo_path=.git
  69         else
  70                 __git_repo_path="$(git rev-parse --git-dir 2>/dev/null)"
  71         fi
  72 }
  73
  74 # Deprecated: use __git_find_repo_path() and $__git_repo_path instead
  75 # __gitdir accepts 0 or 1 arguments (i.e., location)
  76 # returns location of .git repo
  77 __gitdir ()
  78 {
  79         if [ -z "${1-}" ]; then
  80                 __git_find_repo_path || return 1
  81                 echo "$__git_repo_path"
  82         elif [ -d "$1/.git" ]; then
  83                 echo "$1/.git"
  84         else
  85                 echo "$1"
  86         fi
  87 }
  88
  89 # Runs git with all the options given as argument, respecting any
  90 # '--git-dir=<path>' and '-C <path>' options present on the command line
  91 __git ()
  92 {
  93         git ${__git_C_args:+"${__git_C_args[@]}"} \
  94                 ${__git_dir:+--git-dir="$__git_dir"} "$@" 2>/dev/null
  95 }
  96
  97 # The following function is based on code from:
  98 #
  99 #   bash_completion - programmable completion functions for bash 3.2+
 100 #
 101 #   Copyright © 2006-2008, Ian Macdonald <ian@caliban.org>
 102 #             © 2009-2010, Bash Completion Maintainers
 103 #                     <bash-completion-devel@lists.alioth.debian.org>
 104 #
 105 #   This program is free software; you can redistribute it and/or modify
 106 #   it under the terms of the GNU General Public License as published by
 107 #   the Free Software Foundation; either version 2, or (at your option)
 108 #   any later version.
 109 #
 110 #   This program is distributed in the hope that it will be useful,
 111 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
 112 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 113 #   GNU General Public License for more details.
 114 #
 115 #   You should have received a copy of the GNU General Public License
 116 #   along with this program; if not, see <http://www.gnu.org/licenses/>.
 117 #
 118 #   The latest version of this software can be obtained here:
 119 #
 120 #   http://bash-completion.alioth.debian.org/
 121 #
 122 #   RELEASE: 2.x
 123
 124 # This function can be used to access a tokenized list of words
 125 # on the command line:
 126 #
 127 #       __git_reassemble_comp_words_by_ref '=:'
 128 #       if test "${words_[cword_-1]}" = -w
 129 #       then
 130 #               ...
 131 #       fi
 132 #
 133 # The argument should be a collection of characters from the list of
 134 # word completion separators (COMP_WORDBREAKS) to treat as ordinary
 135 # characters.
 136 #
 137 # This is roughly equivalent to going back in time and setting
 138 # COMP_WORDBREAKS to exclude those characters.  The intent is to
 139 # make option types like --date=<type> and <rev>:<path> easy to
 140 # recognize by treating each shell word as a single token.
 141 #
 142 # It is best not to set COMP_WORDBREAKS directly because the value is
 143 # shared with other completion scripts.  By the time the completion
 144 # function gets called, COMP_WORDS has already been populated so local
 145 # changes to COMP_WORDBREAKS have no effect.
 146 #
 147 # Output: words_, cword_, cur_.
 148
 149 __git_reassemble_comp_words_by_ref()
 150 {
 151         local exclude i j first
 152         # Which word separators to exclude?
 153         exclude="${1//[^$COMP_WORDBREAKS]}"
 154         cword_=$COMP_CWORD
 155         if [ -z "$exclude" ]; then
 156                 words_=("${COMP_WORDS[@]}")
 157                 return
 158         fi
 159         # List of word completion separators has shrunk;
 160         # re-assemble words to complete.
 161         for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
 162                 # Append each nonempty word consisting of just
 163                 # word separator characters to the current word.
 164                 first=t
 165                 while
 166                         [ $i -gt 0 ] &&
 167                         [ -n "${COMP_WORDS[$i]}" ] &&
 168                         # word consists of excluded word separators
 169                         [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
 170                 do
 171                         # Attach to the previous token,
 172                         # unless the previous token is the command name.
 173                         if [ $j -ge 2 ] && [ -n "$first" ]; then
 174                                 ((j--))
 175                         fi
 176                         first=
 177                         words_[$j]=${words_[j]}${COMP_WORDS[i]}
 178                         if [ $i = $COMP_CWORD ]; then
 179                                 cword_=$j
 180                         fi
 181                         if (($i < ${#COMP_WORDS[@]} - 1)); then
 182                                 ((i++))
 183                         else
 184                                 # Done.
 185                                 return
 186                         fi
 187                 done
 188                 words_[$j]=${words_[j]}${COMP_WORDS[i]}
 189                 if [ $i = $COMP_CWORD ]; then
 190                         cword_=$j
 191                 fi
 192         done
 193 }
 194
 195 if ! type _get_comp_words_by_ref >/dev/null 2>&1; then
 196 _get_comp_words_by_ref ()
 197 {
 198         local exclude cur_ words_ cword_
 199         if [ "$1" = "-n" ]; then
 200                 exclude=$2
 201                 shift 2
 202         fi
 203         __git_reassemble_comp_words_by_ref "$exclude"
 204         cur_=${words_[cword_]}
 205         while [ $# -gt 0 ]; do
 206                 case "$1" in
 207                 cur)
 208                         cur=$cur_
 209                         ;;
 210                 prev)
 211                         prev=${words_[$cword_-1]}
 212                         ;;
 213                 words)
 214                         words=("${words_[@]}")
 215                         ;;
 216                 cword)
 217                         cword=$cword_
 218                         ;;
 219                 esac
 220                 shift
 221         done
 222 }
 223 fi
 224
 225 # Fills the COMPREPLY array with prefiltered words without any additional
 226 # processing.
 227 # Callers must take care of providing only words that match the current word
 228 # to be completed and adding any prefix and/or suffix (trailing space!), if
 229 # necessary.
 230 # 1: List of newline-separated matching completion words, complete with
 231 #    prefix and suffix.
 232 __gitcomp_direct ()
 233 {
 234         local IFS=$'\n'
 235
 236         COMPREPLY=($1)
 237 }
 238
 239 __gitcompappend ()
 240 {
 241         local x i=${#COMPREPLY[@]}
 242         for x in $1; do
 243                 if [[ "$x" == "$3"* ]]; then
 244                         COMPREPLY[i++]="$2$x$4"
 245                 fi
 246         done
 247 }
 248
 249 __gitcompadd ()
 250 {
 251         COMPREPLY=()
 252         __gitcompappend "$@"
 253 }
 254
 255 # Generates completion reply, appending a space to possible completion words,
 256 # if necessary.
 257 # It accepts 1 to 4 arguments:
 258 # 1: List of possible completion words.
 259 # 2: A prefix to be added to each possible completion word (optional).
 260 # 3: Generate possible completion matches for this word (optional).
 261 # 4: A suffix to be appended to each possible completion word (optional).
 262 __gitcomp ()
 263 {
 264         local cur_="${3-$cur}"
 265
 266         case "$cur_" in
 267         --*=)
 268                 ;;
 269         *)
 270                 local c i=0 IFS=$' \t\n'
 271                 for c in $1; do
 272                         c="$c${4-}"
 273                         if [[ $c == "$cur_"* ]]; then
 274                                 case $c in
 275                                 --*=*|*.) ;;
 276                                 *) c="$c " ;;
 277                                 esac
 278                                 COMPREPLY[i++]="${2-}$c"
 279                         fi
 280                 done
 281                 ;;
 282         esac
 283 }
 284
 285 # Clear the variables caching builtins' options when (re-)sourcing
 286 # the completion script.
 287 if [[ -n ${ZSH_VERSION-} ]]; then
 288         unset $(set |sed -ne 's/^\(__gitcomp_builtin_[a-zA-Z0-9_][a-zA-Z0-9_]*\)=.*/\1/p') 2>/dev/null
 289 else
 290         unset $(compgen -v __gitcomp_builtin_)
 291 fi
 292
 293 # This function is equivalent to
 294 #
 295 #    __gitcomp "$(git xxx --git-completion-helper) ..."
 296 #
 297 # except that the output is cached. Accept 1-3 arguments:
 298 # 1: the git command to execute, this is also the cache key
 299 # 2: extra options to be added on top (e.g. negative forms)
 300 # 3: options to be excluded
 301 __gitcomp_builtin ()
 302 {
 303         # spaces must be replaced with underscore for multi-word
 304         # commands, e.g. "git remote add" becomes remote_add.
 305         local cmd="$1"
 306         local incl="$2"
 307         local excl="$3"
 308
 309         local var=__gitcomp_builtin_"${cmd/-/_}"
 310         local options
 311         eval "options=\$$var"
 312
 313         if [ -z "$options" ]; then
 314                 # leading and trailing spaces are significant to make
 315                 # option removal work correctly.
 316                 options=" $(__git ${cmd/_/ } --git-completion-helper) $incl "
 317                 for i in $excl; do
 318                         options="${options/ $i / }"
 319                 done
 320                 eval "$var=\"$options\""
 321         fi
 322
 323         __gitcomp "$options"
 324 }
 325
 326 # Variation of __gitcomp_nl () that appends to the existing list of
 327 # completion candidates, COMPREPLY.
 328 __gitcomp_nl_append ()
 329 {
 330         local IFS=$'\n'
 331         __gitcompappend "$1" "${2-}" "${3-$cur}" "${4- }"
 332 }
 333
 334 # Generates completion reply from newline-separated possible completion words
 335 # by appending a space to all of them.
 336 # It accepts 1 to 4 arguments:
 337 # 1: List of possible completion words, separated by a single newline.
 338 # 2: A prefix to be added to each possible completion word (optional).
 339 # 3: Generate possible completion matches for this word (optional).
 340 # 4: A suffix to be appended to each possible completion word instead of
 341 #    the default space (optional).  If specified but empty, nothing is
 342 #    appended.
 343 __gitcomp_nl ()
 344 {
 345         COMPREPLY=()
 346         __gitcomp_nl_append "$@"
 347 }
 348
 349 # Generates completion reply with compgen from newline-separated possible
 350 # completion filenames.
 351 # It accepts 1 to 3 arguments:
 352 # 1: List of possible completion filenames, separated by a single newline.
 353 # 2: A directory prefix to be added to each possible completion filename
 354 #    (optional).
 355 # 3: Generate possible completion matches for this word (optional).
 356 __gitcomp_file ()
 357 {
 358         local IFS=$'\n'
 359
 360         # XXX does not work when the directory prefix contains a tilde,
 361         # since tilde expansion is not applied.
 362         # This means that COMPREPLY will be empty and Bash default
 363         # completion will be used.
 364         __gitcompadd "$1" "${2-}" "${3-$cur}" ""
 365
 366         # use a hack to enable file mode in bash < 4
 367         compopt -o filenames +o nospace 2>/dev/null ||
 368         compgen -f /non-existing-dir/ > /dev/null
 369 }
 370
 371 # Execute 'git ls-files', unless the --committable option is specified, in
 372 # which case it runs 'git diff-index' to find out the files that can be
 373 # committed.  It return paths relative to the directory specified in the first
 374 # argument, and using the options specified in the second argument.
 375 __git_ls_files_helper ()
 376 {
 377         if [ "$2" == "--committable" ]; then
 378                 __git -C "$1" diff-index --name-only --relative HEAD
 379         else
 380                 # NOTE: $2 is not quoted in order to support multiple options
 381                 __git -C "$1" ls-files --exclude-standard $2
 382         fi
 383 }
 384
 385
 386 # __git_index_files accepts 1 or 2 arguments:
 387 # 1: Options to pass to ls-files (required).
 388 # 2: A directory path (optional).
 389 #    If provided, only files within the specified directory are listed.
 390 #    Sub directories are never recursed.  Path must have a trailing
 391 #    slash.
 392 __git_index_files ()
 393 {
 394         local root="${2-.}" file
 395
 396         __git_ls_files_helper "$root" "$1" |
 397         cut -f1 -d/ | sort | uniq
 398 }
 399
 400 # Lists branches from the local repository.
 401 # 1: A prefix to be added to each listed branch (optional).
 402 # 2: List only branches matching this word (optional; list all branches if
 403 #    unset or empty).
 404 # 3: A suffix to be appended to each listed branch (optional).
 405 __git_heads ()
 406 {
 407         local pfx="${1-}" cur_="${2-}" sfx="${3-}"
 408
 409         __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \
 410                         "refs/heads/$cur_*" "refs/heads/$cur_*/**"
 411 }
 412
 413 # Lists tags from the local repository.
 414 # Accepts the same positional parameters as __git_heads() above.
 415 __git_tags ()
 416 {
 417         local pfx="${1-}" cur_="${2-}" sfx="${3-}"
 418
 419         __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \
 420                         "refs/tags/$cur_*" "refs/tags/$cur_*/**"
 421 }
 422
 423 # Lists refs from the local (by default) or from a remote repository.
 424 # It accepts 0, 1 or 2 arguments:
 425 # 1: The remote to list refs from (optional; ignored, if set but empty).
 426 #    Can be the name of a configured remote, a path, or a URL.
 427 # 2: In addition to local refs, list unique branches from refs/remotes/ for
 428 #    'git checkout's tracking DWIMery (optional; ignored, if set but empty).
 429 # 3: A prefix to be added to each listed ref (optional).
 430 # 4: List only refs matching this word (optional; list all refs if unset or
 431 #    empty).
 432 # 5: A suffix to be appended to each listed ref (optional; ignored, if set
 433 #    but empty).
 434 #
 435 # Use __git_complete_refs() instead.
 436 __git_refs ()
 437 {
 438         local i hash dir track="${2-}"
 439         local list_refs_from=path remote="${1-}"
 440         local format refs
 441         local pfx="${3-}" cur_="${4-$cur}" sfx="${5-}"
 442         local match="${4-}"
 443         local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers
 444
 445         __git_find_repo_path
 446         dir="$__git_repo_path"
 447
 448         if [ -z "$remote" ]; then
 449                 if [ -z "$dir" ]; then
 450                         return
 451                 fi
 452         else
 453                 if __git_is_configured_remote "$remote"; then
 454                         # configured remote takes precedence over a
 455                         # local directory with the same name
 456                         list_refs_from=remote
 457                 elif [ -d "$remote/.git" ]; then
 458                         dir="$remote/.git"
 459                 elif [ -d "$remote" ]; then
 460                         dir="$remote"
 461                 else
 462                         list_refs_from=url
 463                 fi
 464         fi
 465
 466         if [ "$list_refs_from" = path ]; then
 467                 if [[ "$cur_" == ^* ]]; then
 468                         pfx="$pfx^"
 469                         fer_pfx="$fer_pfx^"
 470                         cur_=${cur_#^}
 471                         match=${match#^}
 472                 fi
 473                 case "$cur_" in
 474                 refs|refs/*)
 475                         format="refname"
 476                         refs=("$match*" "$match*/**")
 477                         track=""
 478                         ;;
 479                 *)
 480                         for i in HEAD FETCH_HEAD ORIG_HEAD MERGE_HEAD REBASE_HEAD; do
 481                                 case "$i" in
 482                                 $match*)
 483                                         if [ -e "$dir/$i" ]; then
 484                                                 echo "$pfx$i$sfx"
 485                                         fi
 486                                         ;;
 487                                 esac
 488                         done
 489                         format="refname:strip=2"
 490                         refs=("refs/tags/$match*" "refs/tags/$match*/**"
 491                                 "refs/heads/$match*" "refs/heads/$match*/**"
 492                                 "refs/remotes/$match*" "refs/remotes/$match*/**")
 493                         ;;
 494                 esac
 495                 __git_dir="$dir" __git for-each-ref --format="$fer_pfx%($format)$sfx" \
 496                         "${refs[@]}"
 497                 if [ -n "$track" ]; then
 498                         # employ the heuristic used by git checkout
 499                         # Try to find a remote branch that matches the completion word
 500                         # but only output if the branch name is unique
 501                         __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
 502                                 --sort="refname:strip=3" \
 503                                 "refs/remotes/*/$match*" "refs/remotes/*/$match*/**" | \
 504                         uniq -u
 505                 fi
 506                 return
 507         fi
 508         case "$cur_" in
 509         refs|refs/*)
 510                 __git ls-remote "$remote" "$match*" | \
 511                 while read -r hash i; do
 512                         case "$i" in
 513                         *^{}) ;;
 514                         *) echo "$pfx$i$sfx" ;;
 515                         esac
 516                 done
 517                 ;;
 518         *)
 519                 if [ "$list_refs_from" = remote ]; then
 520                         case "HEAD" in
 521                         $match*)        echo "${pfx}HEAD$sfx" ;;
 522                         esac
 523                         __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
 524                                 "refs/remotes/$remote/$match*" \
 525                                 "refs/remotes/$remote/$match*/**"
 526                 else
 527                         local query_symref
 528                         case "HEAD" in
 529                         $match*)        query_symref="HEAD" ;;
 530                         esac
 531                         __git ls-remote "$remote" $query_symref \
 532                                 "refs/tags/$match*" "refs/heads/$match*" \
 533                                 "refs/remotes/$match*" |
 534                         while read -r hash i; do
 535                                 case "$i" in
 536                                 *^{})   ;;
 537                                 refs/*) echo "$pfx${i#refs/*/}$sfx" ;;
 538                                 *)      echo "$pfx$i$sfx" ;;  # symbolic refs
 539                                 esac
 540                         done
 541                 fi
 542                 ;;
 543         esac
 544 }
 545
 546 # Completes refs, short and long, local and remote, symbolic and pseudo.
 547 #
 548 # Usage: __git_complete_refs [<option>]...
 549 # --remote=<remote>: The remote to list refs from, can be the name of a
 550 #                    configured remote, a path, or a URL.
 551 # --track: List unique remote branches for 'git checkout's tracking DWIMery.
 552 # --pfx=<prefix>: A prefix to be added to each ref.
 553 # --cur=<word>: The current ref to be completed.  Defaults to the current
 554 #               word to be completed.
 555 # --sfx=<suffix>: A suffix to be appended to each ref instead of the default
 556 #                 space.
 557 __git_complete_refs ()
 558 {
 559         local remote track pfx cur_="$cur" sfx=" "
 560
 561         while test $# != 0; do
 562                 case "$1" in
 563                 --remote=*)     remote="${1##--remote=}" ;;
 564                 --track)        track="yes" ;;
 565                 --pfx=*)        pfx="${1##--pfx=}" ;;
 566                 --cur=*)        cur_="${1##--cur=}" ;;
 567                 --sfx=*)        sfx="${1##--sfx=}" ;;
 568                 *)              return 1 ;;
 569                 esac
 570                 shift
 571         done
 572
 573         __gitcomp_direct "$(__git_refs "$remote" "$track" "$pfx" "$cur_" "$sfx")"
 574 }
 575
 576 # __git_refs2 requires 1 argument (to pass to __git_refs)
 577 # Deprecated: use __git_complete_fetch_refspecs() instead.
 578 __git_refs2 ()
 579 {
 580         local i
 581         for i in $(__git_refs "$1"); do
 582                 echo "$i:$i"
 583         done
 584 }
 585
 586 # Completes refspecs for fetching from a remote repository.
 587 # 1: The remote repository.
 588 # 2: A prefix to be added to each listed refspec (optional).
 589 # 3: The ref to be completed as a refspec instead of the current word to be
 590 #    completed (optional)
 591 # 4: A suffix to be appended to each listed refspec instead of the default
 592 #    space (optional).
 593 __git_complete_fetch_refspecs ()
 594 {
 595         local i remote="$1" pfx="${2-}" cur_="${3-$cur}" sfx="${4- }"
 596
 597         __gitcomp_direct "$(
 598                 for i in $(__git_refs "$remote" "" "" "$cur_") ; do
 599                         echo "$pfx$i:$i$sfx"
 600                 done
 601                 )"
 602 }
 603
 604 # __git_refs_remotes requires 1 argument (to pass to ls-remote)
 605 __git_refs_remotes ()
 606 {
 607         local i hash
 608         __git ls-remote "$1" 'refs/heads/*' | \
 609         while read -r hash i; do
 610                 echo "$i:refs/remotes/$1/${i#refs/heads/}"
 611         done
 612 }
 613
 614 __git_remotes ()
 615 {
 616         __git_find_repo_path
 617         test -d "$__git_repo_path/remotes" && ls -1 "$__git_repo_path/remotes"
 618         __git remote
 619 }
 620
 621 # Returns true if $1 matches the name of a configured remote, false otherwise.
 622 __git_is_configured_remote ()
 623 {
 624         local remote
 625         for remote in $(__git_remotes); do
 626                 if [ "$remote" = "$1" ]; then
 627                         return 0
 628                 fi
 629         done
 630         return 1
 631 }
 632
 633 __git_list_merge_strategies ()
 634 {
 635         LANG=C LC_ALL=C git merge -s help 2>&1 |
 636         sed -n -e '/[Aa]vailable strategies are: /,/^$/{
 637                 s/\.$//
 638                 s/.*://
 639                 s/^[    ]*//
 640                 s/[     ]*$//
 641                 p
 642         }'
 643 }
 644
 645 __git_merge_strategies=
 646 # 'git merge -s help' (and thus detection of the merge strategy
 647 # list) fails, unfortunately, if run outside of any git working
 648 # tree.  __git_merge_strategies is set to the empty string in
 649 # that case, and the detection will be repeated the next time it
 650 # is needed.
 651 __git_compute_merge_strategies ()
 652 {
 653         test -n "$__git_merge_strategies" ||
 654         __git_merge_strategies=$(__git_list_merge_strategies)
 655 }
 656
 657 __git_complete_revlist_file ()
 658 {
 659         local pfx ls ref cur_="$cur"
 660         case "$cur_" in
 661         *..?*:*)
 662                 return
 663                 ;;
 664         ?*:*)
 665                 ref="${cur_%%:*}"
 666                 cur_="${cur_#*:}"
 667                 case "$cur_" in
 668                 ?*/*)
 669                         pfx="${cur_%/*}"
 670                         cur_="${cur_##*/}"
 671                         ls="$ref:$pfx"
 672                         pfx="$pfx/"
 673                         ;;
 674                 *)
 675                         ls="$ref"
 676                         ;;
 677                 esac
 678
 679                 case "$COMP_WORDBREAKS" in
 680                 *:*) : great ;;
 681                 *)   pfx="$ref:$pfx" ;;
 682                 esac
 683
 684                 __gitcomp_nl "$(__git ls-tree "$ls" \
 685                                 | sed '/^100... blob /{
 686                                            s,^.*        ,,
 687                                            s,$, ,
 688                                        }
 689                                        /^120000 blob /{
 690                                            s,^.*        ,,
 691                                            s,$, ,
 692                                        }
 693                                        /^040000 tree /{
 694                                            s,^.*        ,,
 695                                            s,$,/,
 696                                        }
 697                                        s/^.*    //')" \
 698                         "$pfx" "$cur_" ""
 699                 ;;
 700         *...*)
 701                 pfx="${cur_%...*}..."
 702                 cur_="${cur_#*...}"
 703                 __git_complete_refs --pfx="$pfx" --cur="$cur_"
 704                 ;;
 705         *..*)
 706                 pfx="${cur_%..*}.."
 707                 cur_="${cur_#*..}"
 708                 __git_complete_refs --pfx="$pfx" --cur="$cur_"
 709                 ;;
 710         *)
 711                 __git_complete_refs
 712                 ;;
 713         esac
 714 }
 715
 716
 717 # __git_complete_index_file requires 1 argument:
 718 # 1: the options to pass to ls-file
 719 #
 720 # The exception is --committable, which finds the files appropriate commit.
 721 __git_complete_index_file ()
 722 {
 723         local pfx="" cur_="$cur"
 724
 725         case "$cur_" in
 726         ?*/*)
 727                 pfx="${cur_%/*}"
 728                 cur_="${cur_##*/}"
 729                 pfx="${pfx}/"
 730                 ;;
 731         esac
 732
 733         __gitcomp_file "$(__git_index_files "$1" ${pfx:+"$pfx"})" "$pfx" "$cur_"
 734 }
 735
 736 __git_complete_file ()
 737 {
 738         __git_complete_revlist_file
 739 }
 740
 741 __git_complete_revlist ()
 742 {
 743         __git_complete_revlist_file
 744 }
 745
 746 __git_complete_remote_or_refspec ()
 747 {
 748         local cur_="$cur" cmd="${words[1]}"
 749         local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
 750         if [ "$cmd" = "remote" ]; then
 751                 ((c++))
 752         fi
 753         while [ $c -lt $cword ]; do
 754                 i="${words[c]}"
 755                 case "$i" in
 756                 --mirror) [ "$cmd" = "push" ] && no_complete_refspec=1 ;;
 757                 -d|--delete) [ "$cmd" = "push" ] && lhs=0 ;;
 758                 --all)
 759                         case "$cmd" in
 760                         push) no_complete_refspec=1 ;;
 761                         fetch)
 762                                 return
 763                                 ;;
 764                         *) ;;
 765                         esac
 766                         ;;
 767                 -*) ;;
 768                 *) remote="$i"; break ;;
 769                 esac
 770                 ((c++))
 771         done
 772         if [ -z "$remote" ]; then
 773                 __gitcomp_nl "$(__git_remotes)"
 774                 return
 775         fi
 776         if [ $no_complete_refspec = 1 ]; then
 777                 return
 778         fi
 779         [ "$remote" = "." ] && remote=
 780         case "$cur_" in
 781         *:*)
 782                 case "$COMP_WORDBREAKS" in
 783                 *:*) : great ;;
 784                 *)   pfx="${cur_%%:*}:" ;;
 785                 esac
 786                 cur_="${cur_#*:}"
 787                 lhs=0
 788                 ;;
 789         +*)
 790                 pfx="+"
 791                 cur_="${cur_#+}"
 792                 ;;
 793         esac
 794         case "$cmd" in
 795         fetch)
 796                 if [ $lhs = 1 ]; then
 797                         __git_complete_fetch_refspecs "$remote" "$pfx" "$cur_"
 798                 else
 799                         __git_complete_refs --pfx="$pfx" --cur="$cur_"
 800                 fi
 801                 ;;
 802         pull|remote)
 803                 if [ $lhs = 1 ]; then
 804                         __git_complete_refs --remote="$remote" --pfx="$pfx" --cur="$cur_"
 805                 else
 806                         __git_complete_refs --pfx="$pfx" --cur="$cur_"
 807                 fi
 808                 ;;
 809         push)
 810                 if [ $lhs = 1 ]; then
 811                         __git_complete_refs --pfx="$pfx" --cur="$cur_"
 812                 else
 813                         __git_complete_refs --remote="$remote" --pfx="$pfx" --cur="$cur_"
 814                 fi
 815                 ;;
 816         esac
 817 }
 818
 819 __git_complete_strategy ()
 820 {
 821         __git_compute_merge_strategies
 822         case "$prev" in
 823         -s|--strategy)
 824                 __gitcomp "$__git_merge_strategies"
 825                 return 0
 826         esac
 827         case "$cur" in
 828         --strategy=*)
 829                 __gitcomp "$__git_merge_strategies" "" "${cur##--strategy=}"
 830                 return 0
 831                 ;;
 832         esac
 833         return 1
 834 }
 835
 836 __git_all_commands=
 837 __git_compute_all_commands ()
 838 {
 839         test -n "$__git_all_commands" ||
 840         __git_all_commands=$(git --list-cmds=main,others,alias,nohelpers)
 841 }
 842
 843 # Lists all set config variables starting with the given section prefix,
 844 # with the prefix removed.
 845 __git_get_config_variables ()
 846 {
 847         local section="$1" i IFS=$'\n'
 848         for i in $(__git config --name-only --get-regexp "^$section\..*"); do
 849                 echo "${i#$section.}"
 850         done
 851 }
 852
 853 __git_pretty_aliases ()
 854 {
 855         __git_get_config_variables "pretty"
 856 }
 857
 858 # __git_aliased_command requires 1 argument
 859 __git_aliased_command ()
 860 {
 861         local word cmdline=$(__git config --get "alias.$1")
 862         for word in $cmdline; do
 863                 case "$word" in
 864                 \!gitk|gitk)
 865                         echo "gitk"
 866                         return
 867                         ;;
 868                 \!*)    : shell command alias ;;
 869                 -*)     : option ;;
 870                 *=*)    : setting env ;;
 871                 git)    : git itself ;;
 872                 \(\))   : skip parens of shell function definition ;;
 873                 {)      : skip start of shell helper function ;;
 874                 :)      : skip null command ;;
 875                 \'*)    : skip opening quote after sh -c ;;
 876                 *)
 877                         echo "$word"
 878                         return
 879                 esac
 880         done
 881 }
 882
 883 # __git_find_on_cmdline requires 1 argument
 884 __git_find_on_cmdline ()
 885 {
 886         local word subcommand c=1
 887         while [ $c -lt $cword ]; do
 888                 word="${words[c]}"
 889                 for subcommand in $1; do
 890                         if [ "$subcommand" = "$word" ]; then
 891                                 echo "$subcommand"
 892                                 return
 893                         fi
 894                 done
 895                 ((c++))
 896         done
 897 }
 898
 899 # Echo the value of an option set on the command line or config
 900 #
 901 # $1: short option name
 902 # $2: long option name including =
 903 # $3: list of possible values
 904 # $4: config string (optional)
 905 #
 906 # example:
 907 # result="$(__git_get_option_value "-d" "--do-something=" \
 908 #     "yes no" "core.doSomething")"
 909 #
 910 # result is then either empty (no option set) or "yes" or "no"
 911 #
 912 # __git_get_option_value requires 3 arguments
 913 __git_get_option_value ()
 914 {
 915         local c short_opt long_opt val
 916         local result= values config_key word
 917
 918         short_opt="$1"
 919         long_opt="$2"
 920         values="$3"
 921         config_key="$4"
 922
 923         ((c = $cword - 1))
 924         while [ $c -ge 0 ]; do
 925                 word="${words[c]}"
 926                 for val in $values; do
 927                         if [ "$short_opt$val" = "$word" ] ||
 928                            [ "$long_opt$val"  = "$word" ]; then
 929                                 result="$val"
 930                                 break 2
 931                         fi
 932                 done
 933                 ((c--))
 934         done
 935
 936         if [ -n "$config_key" ] && [ -z "$result" ]; then
 937                 result="$(__git config "$config_key")"
 938         fi
 939
 940         echo "$result"
 941 }
 942
 943 __git_has_doubledash ()
 944 {
 945         local c=1
 946         while [ $c -lt $cword ]; do
 947                 if [ "--" = "${words[c]}" ]; then
 948                         return 0
 949                 fi
 950                 ((c++))
 951         done
 952         return 1
 953 }
 954
 955 # Try to count non option arguments passed on the command line for the
 956 # specified git command.
 957 # When options are used, it is necessary to use the special -- option to
 958 # tell the implementation were non option arguments begin.
 959 # XXX this can not be improved, since options can appear everywhere, as
 960 # an example:
 961 #       git mv x -n y
 962 #
 963 # __git_count_arguments requires 1 argument: the git command executed.
 964 __git_count_arguments ()
 965 {
 966         local word i c=0
 967
 968         # Skip "git" (first argument)
 969         for ((i=1; i < ${#words[@]}; i++)); do
 970                 word="${words[i]}"
 971
 972                 case "$word" in
 973                         --)
 974                                 # Good; we can assume that the following are only non
 975                                 # option arguments.
 976                                 ((c = 0))
 977                                 ;;
 978                         "$1")
 979                                 # Skip the specified git command and discard git
 980                                 # main options
 981                                 ((c = 0))
 982                                 ;;
 983                         ?*)
 984                                 ((c++))
 985                                 ;;
 986                 esac
 987         done
 988
 989         printf "%d" $c
 990 }
 991
 992 __git_whitespacelist="nowarn warn error error-all fix"
 993 __git_am_inprogress_options="--skip --continue --resolved --abort --quit --show-current-patch"
 994
 995 _git_am ()
 996 {
 997         __git_find_repo_path
 998         if [ -d "$__git_repo_path"/rebase-apply ]; then
 999                 __gitcomp "$__git_am_inprogress_options"
1000                 return
1001         fi
1002         case "$cur" in
1003         --whitespace=*)
1004                 __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
1005                 return
1006                 ;;
1007         --*)
1008                 __gitcomp_builtin am "--no-utf8" \
1009                         "$__git_am_inprogress_options"
1010                 return
1011         esac
1012 }
1013
1014 _git_apply ()
1015 {
1016         case "$cur" in
1017         --whitespace=*)
1018                 __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
1019                 return
1020                 ;;
1021         --*)
1022                 __gitcomp_builtin apply
1023                 return
1024         esac
1025 }
1026
1027 _git_add ()
1028 {
1029         case "$cur" in
1030         --*)
1031                 __gitcomp_builtin add
1032                 return
1033         esac
1034
1035         local complete_opt="--others --modified --directory --no-empty-directory"
1036         if test -n "$(__git_find_on_cmdline "-u --update")"
1037         then
1038                 complete_opt="--modified"
1039         fi
1040         __git_complete_index_file "$complete_opt"
1041 }
1042
1043 _git_archive ()
1044 {
1045         case "$cur" in
1046         --format=*)
1047                 __gitcomp "$(git archive --list)" "" "${cur##--format=}"
1048                 return
1049                 ;;
1050         --remote=*)
1051                 __gitcomp_nl "$(__git_remotes)" "" "${cur##--remote=}"
1052                 return
1053                 ;;
1054         --*)
1055                 __gitcomp "
1056                         --format= --list --verbose
1057                         --prefix= --remote= --exec= --output
1058                         "
1059                 return
1060                 ;;
1061         esac
1062         __git_complete_file
1063 }
1064
1065 _git_bisect ()
1066 {
1067         __git_has_doubledash && return
1068
1069         local subcommands="start bad good skip reset visualize replay log run"
1070         local subcommand="$(__git_find_on_cmdline "$subcommands")"
1071         if [ -z "$subcommand" ]; then
1072                 __git_find_repo_path
1073                 if [ -f "$__git_repo_path"/BISECT_START ]; then
1074                         __gitcomp "$subcommands"
1075                 else
1076                         __gitcomp "replay start"
1077                 fi
1078                 return
1079         fi
1080
1081         case "$subcommand" in
1082         bad|good|reset|skip|start)
1083                 __git_complete_refs
1084                 ;;
1085         *)
1086                 ;;
1087         esac
1088 }
1089
1090 _git_branch ()
1091 {
1092         local i c=1 only_local_ref="n" has_r="n"
1093
1094         while [ $c -lt $cword ]; do
1095                 i="${words[c]}"
1096                 case "$i" in
1097                 -d|--delete|-m|--move)  only_local_ref="y" ;;
1098                 -r|--remotes)           has_r="y" ;;
1099                 esac
1100                 ((c++))
1101         done
1102
1103         case "$cur" in
1104         --set-upstream-to=*)
1105                 __git_complete_refs --cur="${cur##--set-upstream-to=}"
1106                 ;;
1107         --*)
1108                 __gitcomp_builtin branch "--no-color --no-abbrev
1109                         --no-track --no-column
1110                         "
1111                 ;;
1112         *)
1113                 if [ $only_local_ref = "y" -a $has_r = "n" ]; then
1114                         __gitcomp_direct "$(__git_heads "" "$cur" " ")"
1115                 else
1116                         __git_complete_refs
1117                 fi
1118                 ;;
1119         esac
1120 }
1121
1122 _git_bundle ()
1123 {
1124         local cmd="${words[2]}"
1125         case "$cword" in
1126         2)
1127                 __gitcomp "create list-heads verify unbundle"
1128                 ;;
1129         3)
1130                 # looking for a file
1131                 ;;
1132         *)
1133                 case "$cmd" in
1134                         create)
1135                                 __git_complete_revlist
1136                         ;;
1137                 esac
1138                 ;;
1139         esac
1140 }
1141
1142 _git_checkout ()
1143 {
1144         __git_has_doubledash && return
1145
1146         case "$cur" in
1147         --conflict=*)
1148                 __gitcomp "diff3 merge" "" "${cur##--conflict=}"
1149                 ;;
1150         --*)
1151                 __gitcomp_builtin checkout "--no-track --no-recurse-submodules"
1152                 ;;
1153         *)
1154                 # check if --track, --no-track, or --no-guess was specified
1155                 # if so, disable DWIM mode
1156                 local flags="--track --no-track --no-guess" track_opt="--track"
1157                 if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] ||
1158                    [ -n "$(__git_find_on_cmdline "$flags")" ]; then
1159                         track_opt=''
1160                 fi
1161                 __git_complete_refs $track_opt
1162                 ;;
1163         esac
1164 }
1165
1166 _git_cherry ()
1167 {
1168         case "$cur" in
1169         --*)
1170                 __gitcomp_builtin cherry
1171                 return
1172         esac
1173
1174         __git_complete_refs
1175 }
1176
1177 __git_cherry_pick_inprogress_options="--continue --quit --abort"
1178
1179 _git_cherry_pick ()
1180 {
1181         __git_find_repo_path
1182         if [ -f "$__git_repo_path"/CHERRY_PICK_HEAD ]; then
1183                 __gitcomp "$__git_cherry_pick_inprogress_options"
1184                 return
1185         fi
1186         case "$cur" in
1187         --*)
1188                 __gitcomp_builtin cherry-pick "" \
1189                         "$__git_cherry_pick_inprogress_options"
1190                 ;;
1191         *)
1192                 __git_complete_refs
1193                 ;;
1194         esac
1195 }
1196
1197 _git_clean ()
1198 {
1199         case "$cur" in
1200         --*)
1201                 __gitcomp_builtin clean
1202                 return
1203                 ;;
1204         esac
1205
1206         # XXX should we check for -x option ?
1207         __git_complete_index_file "--others --directory"
1208 }
1209
1210 _git_clone ()
1211 {
1212         case "$cur" in
1213         --*)
1214                 __gitcomp_builtin clone "--no-single-branch"
1215                 return
1216                 ;;
1217         esac
1218 }
1219
1220 __git_untracked_file_modes="all no normal"
1221
1222 _git_commit ()
1223 {
1224         case "$prev" in
1225         -c|-C)
1226                 __git_complete_refs
1227                 return
1228                 ;;
1229         esac
1230
1231         case "$cur" in
1232         --cleanup=*)
1233                 __gitcomp "default scissors strip verbatim whitespace
1234                         " "" "${cur##--cleanup=}"
1235                 return
1236                 ;;
1237         --reuse-message=*|--reedit-message=*|\
1238         --fixup=*|--squash=*)
1239                 __git_complete_refs --cur="${cur#*=}"
1240                 return
1241                 ;;
1242         --untracked-files=*)
1243                 __gitcomp "$__git_untracked_file_modes" "" "${cur##--untracked-files=}"
1244                 return
1245                 ;;
1246         --*)
1247                 __gitcomp_builtin commit "--no-edit --verify"
1248                 return
1249         esac
1250
1251         if __git rev-parse --verify --quiet HEAD >/dev/null; then
1252                 __git_complete_index_file "--committable"
1253         else
1254                 # This is the first commit
1255                 __git_complete_index_file "--cached"
1256         fi
1257 }
1258
1259 _git_describe ()
1260 {
1261         case "$cur" in
1262         --*)
1263                 __gitcomp_builtin describe
1264                 return
1265         esac
1266         __git_complete_refs
1267 }
1268
1269 __git_diff_algorithms="myers minimal patience histogram"
1270
1271 __git_diff_submodule_formats="diff log short"
1272
1273 __git_diff_common_options="--stat --numstat --shortstat --summary
1274                         --patch-with-stat --name-only --name-status --color
1275                         --no-color --color-words --no-renames --check
1276                         --full-index --binary --abbrev --diff-filter=
1277                         --find-copies-harder --ignore-cr-at-eol
1278                         --text --ignore-space-at-eol --ignore-space-change
1279                         --ignore-all-space --ignore-blank-lines --exit-code
1280                         --quiet --ext-diff --no-ext-diff
1281                         --no-prefix --src-prefix= --dst-prefix=
1282                         --inter-hunk-context=
1283                         --patience --histogram --minimal
1284                         --raw --word-diff --word-diff-regex=
1285                         --dirstat --dirstat= --dirstat-by-file
1286                         --dirstat-by-file= --cumulative
1287                         --diff-algorithm=
1288                         --submodule --submodule= --ignore-submodules
1289 "
1290
1291 _git_diff ()
1292 {
1293         __git_has_doubledash && return
1294
1295         case "$cur" in
1296         --diff-algorithm=*)
1297                 __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
1298                 return
1299                 ;;
1300         --submodule=*)
1301                 __gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
1302                 return
1303                 ;;
1304         --*)
1305                 __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
1306                         --base --ours --theirs --no-index
1307                         $__git_diff_common_options
1308                         "
1309                 return
1310                 ;;
1311         esac
1312         __git_complete_revlist_file
1313 }
1314
1315 __git_mergetools_common="diffuse diffmerge ecmerge emerge kdiff3 meld opendiff
1316                         tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc codecompare
1317 "
1318
1319 _git_difftool ()
1320 {
1321         __git_has_doubledash && return
1322
1323         case "$cur" in
1324         --tool=*)
1325                 __gitcomp "$__git_mergetools_common kompare" "" "${cur##--tool=}"
1326                 return
1327                 ;;
1328         --*)
1329                 __gitcomp_builtin difftool "$__git_diff_common_options
1330                                         --base --cached --ours --theirs
1331                                         --pickaxe-all --pickaxe-regex
1332                                         --relative --staged
1333                                         "
1334                 return
1335                 ;;
1336         esac
1337         __git_complete_revlist_file
1338 }
1339
1340 __git_fetch_recurse_submodules="yes on-demand no"
1341
1342 _git_fetch ()
1343 {
1344         case "$cur" in
1345         --recurse-submodules=*)
1346                 __gitcomp "$__git_fetch_recurse_submodules" "" "${cur##--recurse-submodules=}"
1347                 return
1348                 ;;
1349         --*)
1350                 __gitcomp_builtin fetch "--no-tags"
1351                 return
1352                 ;;
1353         esac
1354         __git_complete_remote_or_refspec
1355 }
1356
1357 __git_format_patch_options="
1358         --stdout --attach --no-attach --thread --thread= --no-thread
1359         --numbered --start-number --numbered-files --keep-subject --signoff
1360         --signature --no-signature --in-reply-to= --cc= --full-index --binary
1361         --not --all --cover-letter --no-prefix --src-prefix= --dst-prefix=
1362         --inline --suffix= --ignore-if-in-upstream --subject-prefix=
1363         --output-directory --reroll-count --to= --quiet --notes
1364 "
1365
1366 _git_format_patch ()
1367 {
1368         case "$cur" in
1369         --thread=*)
1370                 __gitcomp "
1371                         deep shallow
1372                         " "" "${cur##--thread=}"
1373                 return
1374                 ;;
1375         --*)
1376                 __gitcomp "$__git_format_patch_options"
1377                 return
1378                 ;;
1379         esac
1380         __git_complete_revlist
1381 }
1382
1383 _git_fsck ()
1384 {
1385         case "$cur" in
1386         --*)
1387                 __gitcomp_builtin fsck "--no-reflogs"
1388                 return
1389                 ;;
1390         esac
1391 }
1392
1393 _git_gitk ()
1394 {
1395         _gitk
1396 }
1397
1398 # Lists matching symbol names from a tag (as in ctags) file.
1399 # 1: List symbol names matching this word.
1400 # 2: The tag file to list symbol names from.
1401 # 3: A prefix to be added to each listed symbol name (optional).
1402 # 4: A suffix to be appended to each listed symbol name (optional).
1403 __git_match_ctag () {
1404         awk -v pfx="${3-}" -v sfx="${4-}" "
1405                 /^${1//\//\\/}/ { print pfx \$1 sfx }
1406                 " "$2"
1407 }
1408
1409 # Complete symbol names from a tag file.
1410 # Usage: __git_complete_symbol [<option>]...
1411 # --tags=<file>: The tag file to list symbol names from instead of the
1412 #                default "tags".
1413 # --pfx=<prefix>: A prefix to be added to each symbol name.
1414 # --cur=<word>: The current symbol name to be completed.  Defaults to
1415 #               the current word to be completed.
1416 # --sfx=<suffix>: A suffix to be appended to each symbol name instead
1417 #                 of the default space.
1418 __git_complete_symbol () {
1419         local tags=tags pfx="" cur_="${cur-}" sfx=" "
1420
1421         while test $# != 0; do
1422                 case "$1" in
1423                 --tags=*)       tags="${1##--tags=}" ;;
1424                 --pfx=*)        pfx="${1##--pfx=}" ;;
1425                 --cur=*)        cur_="${1##--cur=}" ;;
1426                 --sfx=*)        sfx="${1##--sfx=}" ;;
1427                 *)              return 1 ;;
1428                 esac
1429                 shift
1430         done
1431
1432         if test -r "$tags"; then
1433                 __gitcomp_direct "$(__git_match_ctag "$cur_" "$tags" "$pfx" "$sfx")"
1434         fi
1435 }
1436
1437 _git_grep ()
1438 {
1439         __git_has_doubledash && return
1440
1441         case "$cur" in
1442         --*)
1443                 __gitcomp_builtin grep
1444                 return
1445                 ;;
1446         esac
1447
1448         case "$cword,$prev" in
1449         2,*|*,-*)
1450                 __git_complete_symbol && return
1451                 ;;
1452         esac
1453
1454         __git_complete_refs
1455 }
1456
1457 _git_help ()
1458 {
1459         case "$cur" in
1460         --*)
1461                 __gitcomp_builtin help
1462                 return
1463                 ;;
1464         esac
1465         if test -n "$GIT_TESTING_ALL_COMMAND_LIST"
1466         then
1467                 __gitcomp "$GIT_TESTING_ALL_COMMAND_LIST $(git --list-cmds=alias,list-guide) gitk"
1468         else
1469                 __gitcomp "$(git --list-cmds=main,nohelpers,alias,list-guide) gitk"
1470         fi
1471 }
1472
1473 _git_init ()
1474 {
1475         case "$cur" in
1476         --shared=*)
1477                 __gitcomp "
1478                         false true umask group all world everybody
1479                         " "" "${cur##--shared=}"
1480                 return
1481                 ;;
1482         --*)
1483                 __gitcomp_builtin init
1484                 return
1485                 ;;
1486         esac
1487 }
1488
1489 _git_ls_files ()
1490 {
1491         case "$cur" in
1492         --*)
1493                 __gitcomp_builtin ls-files "--no-empty-directory"
1494                 return
1495                 ;;
1496         esac
1497
1498         # XXX ignore options like --modified and always suggest all cached
1499         # files.
1500         __git_complete_index_file "--cached"
1501 }
1502
1503 _git_ls_remote ()
1504 {
1505         case "$cur" in
1506         --*)
1507                 __gitcomp_builtin ls-remote
1508                 return
1509                 ;;
1510         esac
1511         __gitcomp_nl "$(__git_remotes)"
1512 }
1513
1514 _git_ls_tree ()
1515 {
1516         case "$cur" in
1517         --*)
1518                 __gitcomp_builtin ls-tree
1519                 return
1520                 ;;
1521         esac
1522
1523         __git_complete_file
1524 }
1525
1526 # Options that go well for log, shortlog and gitk
1527 __git_log_common_options="
1528         --not --all
1529         --branches --tags --remotes
1530         --first-parent --merges --no-merges
1531         --max-count=
1532         --max-age= --since= --after=
1533         --min-age= --until= --before=
1534         --min-parents= --max-parents=
1535         --no-min-parents --no-max-parents
1536 "
1537 # Options that go well for log and gitk (not shortlog)
1538 __git_log_gitk_options="
1539         --dense --sparse --full-history
1540         --simplify-merges --simplify-by-decoration
1541         --left-right --notes --no-notes
1542 "
1543 # Options that go well for log and shortlog (not gitk)
1544 __git_log_shortlog_options="
1545         --author= --committer= --grep=
1546         --all-match --invert-grep
1547 "
1548
1549 __git_log_pretty_formats="oneline short medium full fuller email raw format:"
1550 __git_log_date_formats="relative iso8601 rfc2822 short local default raw"
1551
1552 _git_log ()
1553 {
1554         __git_has_doubledash && return
1555         __git_find_repo_path
1556
1557         local merge=""
1558         if [ -f "$__git_repo_path/MERGE_HEAD" ]; then
1559                 merge="--merge"
1560         fi
1561         case "$prev,$cur" in
1562         -L,:*:*)
1563                 return  # fall back to Bash filename completion
1564                 ;;
1565         -L,:*)
1566                 __git_complete_symbol --cur="${cur#:}" --sfx=":"
1567                 return
1568                 ;;
1569         -G,*|-S,*)
1570                 __git_complete_symbol
1571                 return
1572                 ;;
1573         esac
1574         case "$cur" in
1575         --pretty=*|--format=*)
1576                 __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
1577                         " "" "${cur#*=}"
1578                 return
1579                 ;;
1580         --date=*)
1581                 __gitcomp "$__git_log_date_formats" "" "${cur##--date=}"
1582                 return
1583                 ;;
1584         --decorate=*)
1585                 __gitcomp "full short no" "" "${cur##--decorate=}"
1586                 return
1587                 ;;
1588         --diff-algorithm=*)
1589                 __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
1590                 return
1591                 ;;
1592         --submodule=*)
1593                 __gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
1594                 return
1595                 ;;
1596         --*)
1597                 __gitcomp "
1598                         $__git_log_common_options
1599                         $__git_log_shortlog_options
1600                         $__git_log_gitk_options
1601                         --root --topo-order --date-order --reverse
1602                         --follow --full-diff
1603                         --abbrev-commit --abbrev=
1604                         --relative-date --date=
1605                         --pretty= --format= --oneline
1606                         --show-signature
1607                         --cherry-mark
1608                         --cherry-pick
1609                         --graph
1610                         --decorate --decorate=
1611                         --walk-reflogs
1612                         --parents --children
1613                         $merge
1614                         $__git_diff_common_options
1615                         --pickaxe-all --pickaxe-regex
1616                         "
1617                 return
1618                 ;;
1619         -L:*:*)
1620                 return  # fall back to Bash filename completion
1621                 ;;
1622         -L:*)
1623                 __git_complete_symbol --cur="${cur#-L:}" --sfx=":"
1624                 return
1625                 ;;
1626         -G*)
1627                 __git_complete_symbol --pfx="-G" --cur="${cur#-G}"
1628                 return
1629                 ;;
1630         -S*)
1631                 __git_complete_symbol --pfx="-S" --cur="${cur#-S}"
1632                 return
1633                 ;;
1634         esac
1635         __git_complete_revlist
1636 }
1637
1638 _git_merge ()
1639 {
1640         __git_complete_strategy && return
1641
1642         case "$cur" in
1643         --*)
1644                 __gitcomp_builtin merge "--no-rerere-autoupdate
1645                                 --no-commit --no-edit --no-ff
1646                                 --no-log --no-progress
1647                                 --no-squash --no-stat
1648                                 --no-verify-signatures
1649                                 "
1650                 return
1651         esac
1652         __git_complete_refs
1653 }
1654
1655 _git_mergetool ()
1656 {
1657         case "$cur" in
1658         --tool=*)
1659                 __gitcomp "$__git_mergetools_common tortoisemerge" "" "${cur##--tool=}"
1660                 return
1661                 ;;
1662         --*)
1663                 __gitcomp "--tool= --prompt --no-prompt"
1664                 return
1665                 ;;
1666         esac
1667 }
1668
1669 _git_merge_base ()
1670 {
1671         case "$cur" in
1672         --*)
1673                 __gitcomp_builtin merge-base
1674                 return
1675                 ;;
1676         esac
1677         __git_complete_refs
1678 }
1679
1680 _git_mv ()
1681 {
1682         case "$cur" in
1683         --*)
1684                 __gitcomp_builtin mv
1685                 return
1686                 ;;
1687         esac
1688
1689         if [ $(__git_count_arguments "mv") -gt 0 ]; then
1690                 # We need to show both cached and untracked files (including
1691                 # empty directories) since this may not be the last argument.
1692                 __git_complete_index_file "--cached --others --directory"
1693         else
1694                 __git_complete_index_file "--cached"
1695         fi
1696 }
1697
1698 _git_notes ()
1699 {
1700         local subcommands='add append copy edit get-ref list merge prune remove show'
1701         local subcommand="$(__git_find_on_cmdline "$subcommands")"
1702
1703         case "$subcommand,$cur" in
1704         ,--*)
1705                 __gitcomp_builtin notes
1706                 ;;
1707         ,*)
1708                 case "$prev" in
1709                 --ref)
1710                         __git_complete_refs
1711                         ;;
1712                 *)
1713                         __gitcomp "$subcommands --ref"
1714                         ;;
1715                 esac
1716                 ;;
1717         *,--reuse-message=*|*,--reedit-message=*)
1718                 __git_complete_refs --cur="${cur#*=}"
1719                 ;;
1720         *,--*)
1721                 __gitcomp_builtin notes_$subcommand
1722                 ;;
1723         prune,*|get-ref,*)
1724                 # this command does not take a ref, do not complete it
1725                 ;;
1726         *)
1727                 case "$prev" in
1728                 -m|-F)
1729                         ;;
1730                 *)
1731                         __git_complete_refs
1732                         ;;
1733                 esac
1734                 ;;
1735         esac
1736 }
1737
1738 _git_pull ()
1739 {
1740         __git_complete_strategy && return
1741
1742         case "$cur" in
1743         --recurse-submodules=*)
1744                 __gitcomp "$__git_fetch_recurse_submodules" "" "${cur##--recurse-submodules=}"
1745                 return
1746                 ;;
1747         --*)
1748                 __gitcomp_builtin pull "--no-autostash --no-commit --no-edit
1749                                         --no-ff --no-log --no-progress --no-rebase
1750                                         --no-squash --no-stat --no-tags
1751                                         --no-verify-signatures"
1752
1753                 return
1754                 ;;
1755         esac
1756         __git_complete_remote_or_refspec
1757 }
1758
1759 __git_push_recurse_submodules="check on-demand only"
1760
1761 __git_complete_force_with_lease ()
1762 {
1763         local cur_=$1
1764
1765         case "$cur_" in
1766         --*=)
1767                 ;;
1768         *:*)
1769                 __git_complete_refs --cur="${cur_#*:}"
1770                 ;;
1771         *)
1772                 __git_complete_refs --cur="$cur_"
1773                 ;;
1774         esac
1775 }
1776
1777 _git_push ()
1778 {
1779         case "$prev" in
1780         --repo)
1781                 __gitcomp_nl "$(__git_remotes)"
1782                 return
1783                 ;;
1784         --recurse-submodules)
1785                 __gitcomp "$__git_push_recurse_submodules"
1786                 return
1787                 ;;
1788         esac
1789         case "$cur" in
1790         --repo=*)
1791                 __gitcomp_nl "$(__git_remotes)" "" "${cur##--repo=}"
1792                 return
1793                 ;;
1794         --recurse-submodules=*)
1795                 __gitcomp "$__git_push_recurse_submodules" "" "${cur##--recurse-submodules=}"
1796                 return
1797                 ;;
1798         --force-with-lease=*)
1799                 __git_complete_force_with_lease "${cur##--force-with-lease=}"
1800                 return
1801                 ;;
1802         --*)
1803                 __gitcomp_builtin push
1804                 return
1805                 ;;
1806         esac
1807         __git_complete_remote_or_refspec
1808 }
1809
1810 _git_rebase ()
1811 {
1812         __git_find_repo_path
1813         if [ -f "$__git_repo_path"/rebase-merge/interactive ]; then
1814                 __gitcomp "--continue --skip --abort --quit --edit-todo --show-current-patch"
1815                 return
1816         elif [ -d "$__git_repo_path"/rebase-apply ] || \
1817              [ -d "$__git_repo_path"/rebase-merge ]; then
1818                 __gitcomp "--continue --skip --abort --quit --show-current-patch"
1819                 return
1820         fi
1821         __git_complete_strategy && return
1822         case "$cur" in
1823         --whitespace=*)
1824                 __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
1825                 return
1826                 ;;
1827         --*)
1828                 __gitcomp "
1829                         --onto --merge --strategy --interactive
1830                         --rebase-merges --preserve-merges --stat --no-stat
1831                         --committer-date-is-author-date --ignore-date
1832                         --ignore-whitespace --whitespace=
1833                         --autosquash --no-autosquash
1834                         --fork-point --no-fork-point
1835                         --autostash --no-autostash
1836                         --verify --no-verify
1837                         --keep-empty --root --force-rebase --no-ff
1838                         --rerere-autoupdate
1839                         --exec
1840                         "
1841
1842                 return
1843         esac
1844         __git_complete_refs
1845 }
1846
1847 _git_reflog ()
1848 {
1849         local subcommands="show delete expire"
1850         local subcommand="$(__git_find_on_cmdline "$subcommands")"
1851
1852         if [ -z "$subcommand" ]; then
1853                 __gitcomp "$subcommands"
1854         else
1855                 __git_complete_refs
1856         fi
1857 }
1858
1859 __git_send_email_confirm_options="always never auto cc compose"
1860 __git_send_email_suppresscc_options="author self cc bodycc sob cccmd body all"
1861
1862 _git_send_email ()
1863 {
1864         case "$prev" in
1865         --to|--cc|--bcc|--from)
1866                 __gitcomp "$(__git send-email --dump-aliases)"
1867                 return
1868                 ;;
1869         esac
1870
1871         case "$cur" in
1872         --confirm=*)
1873                 __gitcomp "
1874                         $__git_send_email_confirm_options
1875                         " "" "${cur##--confirm=}"
1876                 return
1877                 ;;
1878         --suppress-cc=*)
1879                 __gitcomp "
1880                         $__git_send_email_suppresscc_options
1881                         " "" "${cur##--suppress-cc=}"
1882
1883                 return
1884                 ;;
1885         --smtp-encryption=*)
1886                 __gitcomp "ssl tls" "" "${cur##--smtp-encryption=}"
1887                 return
1888                 ;;
1889         --thread=*)
1890                 __gitcomp "
1891                         deep shallow
1892                         " "" "${cur##--thread=}"
1893                 return
1894                 ;;
1895         --to=*|--cc=*|--bcc=*|--from=*)
1896                 __gitcomp "$(__git send-email --dump-aliases)" "" "${cur#--*=}"
1897                 return
1898                 ;;
1899         --*)
1900                 __gitcomp "--annotate --bcc --cc --cc-cmd --chain-reply-to
1901                         --compose --confirm= --dry-run --envelope-sender
1902                         --from --identity
1903                         --in-reply-to --no-chain-reply-to --no-signed-off-by-cc
1904                         --no-suppress-from --no-thread --quiet --reply-to
1905                         --signed-off-by-cc --smtp-pass --smtp-server
1906                         --smtp-server-port --smtp-encryption= --smtp-user
1907                         --subject --suppress-cc= --suppress-from --thread --to
1908                         --validate --no-validate
1909                         $__git_format_patch_options"
1910                 return
1911                 ;;
1912         esac
1913         __git_complete_revlist
1914 }
1915
1916 _git_stage ()
1917 {
1918         _git_add
1919 }
1920
1921 _git_status ()
1922 {
1923         local complete_opt
1924         local untracked_state
1925
1926         case "$cur" in
1927         --ignore-submodules=*)
1928                 __gitcomp "none untracked dirty all" "" "${cur##--ignore-submodules=}"
1929                 return
1930                 ;;
1931         --untracked-files=*)
1932                 __gitcomp "$__git_untracked_file_modes" "" "${cur##--untracked-files=}"
1933                 return
1934                 ;;
1935         --column=*)
1936                 __gitcomp "
1937                         always never auto column row plain dense nodense
1938                         " "" "${cur##--column=}"
1939                 return
1940                 ;;
1941         --*)
1942                 __gitcomp_builtin status "--no-column"
1943                 return
1944                 ;;
1945         esac
1946
1947         untracked_state="$(__git_get_option_value "-u" "--untracked-files=" \
1948                 "$__git_untracked_file_modes" "status.showUntrackedFiles")"
1949
1950         case "$untracked_state" in
1951         no)
1952                 # --ignored option does not matter
1953                 complete_opt=
1954                 ;;
1955         all|normal|*)
1956                 complete_opt="--cached --directory --no-empty-directory --others"
1957
1958                 if [ -n "$(__git_find_on_cmdline "--ignored")" ]; then
1959                         complete_opt="$complete_opt --ignored --exclude=*"
1960                 fi
1961                 ;;
1962         esac
1963
1964         __git_complete_index_file "$complete_opt"
1965 }
1966
1967 __git_config_get_set_variables ()
1968 {
1969         local prevword word config_file= c=$cword
1970         while [ $c -gt 1 ]; do
1971                 word="${words[c]}"
1972                 case "$word" in
1973                 --system|--global|--local|--file=*)
1974                         config_file="$word"
1975                         break
1976                         ;;
1977                 -f|--file)
1978                         config_file="$word $prevword"
1979                         break
1980                         ;;
1981                 esac
1982                 prevword=$word
1983                 c=$((--c))
1984         done
1985
1986         __git config $config_file --name-only --list
1987 }
1988
1989 __git_config_vars=
1990 __git_compute_config_vars ()
1991 {
1992         test -n "$__git_config_vars" ||
1993         __git_config_vars="$(git help --config-for-completion | sort | uniq)"
1994 }
1995
1996 _git_config ()
1997 {
1998         local varname
1999
2000         if [ "${BASH_VERSINFO[0]:-0}" -ge 4 ]; then
2001                 varname="${prev,,}"
2002         else
2003                 varname="$(echo "$prev" |tr A-Z a-z)"
2004         fi
2005
2006         case "$varname" in
2007         branch.*.remote|branch.*.pushremote)
2008                 __gitcomp_nl "$(__git_remotes)"
2009                 return
2010                 ;;
2011         branch.*.merge)
2012                 __git_complete_refs
2013                 return
2014                 ;;
2015         branch.*.rebase)
2016                 __gitcomp "false true merges preserve interactive"
2017                 return
2018                 ;;
2019         remote.pushdefault)
2020                 __gitcomp_nl "$(__git_remotes)"
2021                 return
2022                 ;;
2023         remote.*.fetch)
2024                 local remote="${prev#remote.}"
2025                 remote="${remote%.fetch}"
2026                 if [ -z "$cur" ]; then
2027                         __gitcomp_nl "refs/heads/" "" "" ""
2028                         return
2029                 fi
2030                 __gitcomp_nl "$(__git_refs_remotes "$remote")"
2031                 return
2032                 ;;
2033         remote.*.push)
2034                 local remote="${prev#remote.}"
2035                 remote="${remote%.push}"
2036                 __gitcomp_nl "$(__git for-each-ref \
2037                         --format='%(refname):%(refname)' refs/heads)"
2038                 return
2039                 ;;
2040         pull.twohead|pull.octopus)
2041                 __git_compute_merge_strategies
2042                 __gitcomp "$__git_merge_strategies"
2043                 return
2044                 ;;
2045         color.branch|color.diff|color.interactive|\
2046         color.showbranch|color.status|color.ui)
2047                 __gitcomp "always never auto"
2048                 return
2049                 ;;
2050         color.pager)
2051                 __gitcomp "false true"
2052                 return
2053                 ;;
2054         color.*.*)
2055                 __gitcomp "
2056                         normal black red green yellow blue magenta cyan white
2057                         bold dim ul blink reverse
2058                         "
2059                 return
2060                 ;;
2061         diff.submodule)
2062                 __gitcomp "log short"
2063                 return
2064                 ;;
2065         help.format)
2066                 __gitcomp "man info web html"
2067                 return
2068                 ;;
2069         log.date)
2070                 __gitcomp "$__git_log_date_formats"
2071                 return
2072                 ;;
2073         sendemail.aliasfiletype)
2074                 __gitcomp "mutt mailrc pine elm gnus"
2075                 return
2076                 ;;
2077         sendemail.confirm)
2078                 __gitcomp "$__git_send_email_confirm_options"
2079                 return
2080                 ;;
2081         sendemail.suppresscc)
2082                 __gitcomp "$__git_send_email_suppresscc_options"
2083                 return
2084                 ;;
2085         sendemail.transferencoding)
2086                 __gitcomp "7bit 8bit quoted-printable base64"
2087                 return
2088                 ;;
2089         --get|--get-all|--unset|--unset-all)
2090                 __gitcomp_nl "$(__git_config_get_set_variables)"
2091                 return
2092                 ;;
2093         *.*)
2094                 return
2095                 ;;
2096         esac
2097         case "$cur" in
2098         --*)
2099                 __gitcomp_builtin config
2100                 return
2101                 ;;
2102         branch.*.*)
2103                 local pfx="${cur%.*}." cur_="${cur##*.}"
2104                 __gitcomp "remote pushRemote merge mergeOptions rebase" "$pfx" "$cur_"
2105                 return
2106                 ;;
2107         branch.*)
2108                 local pfx="${cur%.*}." cur_="${cur#*.}"
2109                 __gitcomp_direct "$(__git_heads "$pfx" "$cur_" ".")"
2110                 __gitcomp_nl_append $'autoSetupMerge\nautoSetupRebase\n' "$pfx" "$cur_"
2111                 return
2112                 ;;
2113         guitool.*.*)
2114                 local pfx="${cur%.*}." cur_="${cur##*.}"
2115                 __gitcomp "
2116                         argPrompt cmd confirm needsFile noConsole noRescan
2117                         prompt revPrompt revUnmerged title
2118                         " "$pfx" "$cur_"
2119                 return
2120                 ;;
2121         difftool.*.*)
2122                 local pfx="${cur%.*}." cur_="${cur##*.}"
2123                 __gitcomp "cmd path" "$pfx" "$cur_"
2124                 return
2125                 ;;
2126         man.*.*)
2127                 local pfx="${cur%.*}." cur_="${cur##*.}"
2128                 __gitcomp "cmd path" "$pfx" "$cur_"
2129                 return
2130                 ;;
2131         mergetool.*.*)
2132                 local pfx="${cur%.*}." cur_="${cur##*.}"
2133                 __gitcomp "cmd path trustExitCode" "$pfx" "$cur_"
2134                 return
2135                 ;;
2136         pager.*)
2137                 local pfx="${cur%.*}." cur_="${cur#*.}"
2138                 __git_compute_all_commands
2139                 __gitcomp_nl "$__git_all_commands" "$pfx" "$cur_"
2140                 return
2141                 ;;
2142         remote.*.*)
2143                 local pfx="${cur%.*}." cur_="${cur##*.}"
2144                 __gitcomp "
2145                         url proxy fetch push mirror skipDefaultUpdate
2146                         receivepack uploadpack tagOpt pushurl
2147                         " "$pfx" "$cur_"
2148                 return
2149                 ;;
2150         remote.*)
2151                 local pfx="${cur%.*}." cur_="${cur#*.}"
2152                 __gitcomp_nl "$(__git_remotes)" "$pfx" "$cur_" "."
2153                 __gitcomp_nl_append "pushDefault" "$pfx" "$cur_"
2154                 return
2155                 ;;
2156         url.*.*)
2157                 local pfx="${cur%.*}." cur_="${cur##*.}"
2158                 __gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_"
2159                 return
2160                 ;;
2161         *.*)
2162                 __git_compute_config_vars
2163                 __gitcomp "$__git_config_vars"
2164                 ;;
2165         *)
2166                 __git_compute_config_vars
2167                 __gitcomp "$(echo "$__git_config_vars" | sed 's/\.[^ ]*/./g')"
2168         esac
2169 }
2170
2171 _git_remote ()
2172 {
2173         local subcommands="
2174                 add rename remove set-head set-branches
2175                 get-url set-url show prune update
2176                 "
2177         local subcommand="$(__git_find_on_cmdline "$subcommands")"
2178         if [ -z "$subcommand" ]; then
2179                 case "$cur" in
2180                 --*)
2181                         __gitcomp_builtin remote
2182                         ;;
2183                 *)
2184                         __gitcomp "$subcommands"
2185                         ;;
2186                 esac
2187                 return
2188         fi
2189
2190         case "$subcommand,$cur" in
2191         add,--*)
2192                 __gitcomp_builtin remote_add "--no-tags"
2193                 ;;
2194         add,*)
2195                 ;;
2196         set-head,--*)
2197                 __gitcomp_builtin remote_set-head
2198                 ;;
2199         set-branches,--*)
2200                 __gitcomp_builtin remote_set-branches
2201                 ;;
2202         set-head,*|set-branches,*)
2203                 __git_complete_remote_or_refspec
2204                 ;;
2205         update,--*)
2206                 __gitcomp_builtin remote_update
2207                 ;;
2208         update,*)
2209                 __gitcomp "$(__git_get_config_variables "remotes")"
2210                 ;;
2211         set-url,--*)
2212                 __gitcomp_builtin remote_set-url
2213                 ;;
2214         get-url,--*)
2215                 __gitcomp_builtin remote_get-url
2216                 ;;
2217         prune,--*)
2218                 __gitcomp_builtin remote_prune
2219                 ;;
2220         *)
2221                 __gitcomp_nl "$(__git_remotes)"
2222                 ;;
2223         esac
2224 }
2225
2226 _git_replace ()
2227 {
2228         case "$cur" in
2229         --*)
2230                 __gitcomp_builtin replace
2231                 return
2232                 ;;
2233         esac
2234         __git_complete_refs
2235 }
2236
2237 _git_rerere ()
2238 {
2239         local subcommands="clear forget diff remaining status gc"
2240         local subcommand="$(__git_find_on_cmdline "$subcommands")"
2241         if test -z "$subcommand"
2242         then
2243                 __gitcomp "$subcommands"
2244                 return
2245         fi
2246 }
2247
2248 _git_reset ()
2249 {
2250         __git_has_doubledash && return
2251
2252         case "$cur" in
2253         --*)
2254                 __gitcomp_builtin reset
2255                 return
2256                 ;;
2257         esac
2258         __git_complete_refs
2259 }
2260
2261 __git_revert_inprogress_options="--continue --quit --abort"
2262
2263 _git_revert ()
2264 {
2265         __git_find_repo_path
2266         if [ -f "$__git_repo_path"/REVERT_HEAD ]; then
2267                 __gitcomp "$__git_revert_inprogress_options"
2268                 return
2269         fi
2270         case "$cur" in
2271         --*)
2272                 __gitcomp_builtin revert "--no-edit" \
2273                         "$__git_revert_inprogress_options"
2274                 return
2275                 ;;
2276         esac
2277         __git_complete_refs
2278 }
2279
2280 _git_rm ()
2281 {
2282         case "$cur" in
2283         --*)
2284                 __gitcomp_builtin rm
2285                 return
2286                 ;;
2287         esac
2288
2289         __git_complete_index_file "--cached"
2290 }
2291
2292 _git_shortlog ()
2293 {
2294         __git_has_doubledash && return
2295
2296         case "$cur" in
2297         --*)
2298                 __gitcomp "
2299                         $__git_log_common_options
2300                         $__git_log_shortlog_options
2301                         --numbered --summary --email
2302                         "
2303                 return
2304                 ;;
2305         esac
2306         __git_complete_revlist
2307 }
2308
2309 _git_show ()
2310 {
2311         __git_has_doubledash && return
2312
2313         case "$cur" in
2314         --pretty=*|--format=*)
2315                 __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
2316                         " "" "${cur#*=}"
2317                 return
2318                 ;;
2319         --diff-algorithm=*)
2320                 __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
2321                 return
2322                 ;;
2323         --submodule=*)
2324                 __gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
2325                 return
2326                 ;;
2327         --*)
2328                 __gitcomp "--pretty= --format= --abbrev-commit --oneline
2329                         --show-signature
2330                         $__git_diff_common_options
2331                         "
2332                 return
2333                 ;;
2334         esac
2335         __git_complete_revlist_file
2336 }
2337
2338 _git_show_branch ()
2339 {
2340         case "$cur" in
2341         --*)
2342                 __gitcomp_builtin show-branch "--no-color"
2343                 return
2344                 ;;
2345         esac
2346         __git_complete_revlist
2347 }
2348
2349 _git_stash ()
2350 {
2351         local save_opts='--all --keep-index --no-keep-index --quiet --patch --include-untracked'
2352         local subcommands='push list show apply clear drop pop create branch'
2353         local subcommand="$(__git_find_on_cmdline "$subcommands save")"
2354         if [ -n "$(__git_find_on_cmdline "-p")" ]; then
2355                 subcommand="push"
2356         fi
2357         if [ -z "$subcommand" ]; then
2358                 case "$cur" in
2359                 --*)
2360                         __gitcomp "$save_opts"
2361                         ;;
2362                 sa*)
2363                         if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then
2364                                 __gitcomp "save"
2365                         fi
2366                         ;;
2367                 *)
2368                         if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then
2369                                 __gitcomp "$subcommands"
2370                         fi
2371                         ;;
2372                 esac
2373         else
2374                 case "$subcommand,$cur" in
2375                 push,--*)
2376                         __gitcomp "$save_opts --message"
2377                         ;;
2378                 save,--*)
2379                         __gitcomp "$save_opts"
2380                         ;;
2381                 apply,--*|pop,--*)
2382                         __gitcomp "--index --quiet"
2383                         ;;
2384                 drop,--*)
2385                         __gitcomp "--quiet"
2386                         ;;
2387                 show,--*|branch,--*)
2388                         ;;
2389                 branch,*)
2390                         if [ $cword -eq 3 ]; then
2391                                 __git_complete_refs
2392                         else
2393                                 __gitcomp_nl "$(__git stash list \
2394                                                 | sed -n -e 's/:.*//p')"
2395                         fi
2396                         ;;
2397                 show,*|apply,*|drop,*|pop,*)
2398                         __gitcomp_nl "$(__git stash list \
2399                                         | sed -n -e 's/:.*//p')"
2400                         ;;
2401                 *)
2402                         ;;
2403                 esac
2404         fi
2405 }
2406
2407 _git_submodule ()
2408 {
2409         __git_has_doubledash && return
2410
2411         local subcommands="add status init deinit update summary foreach sync"
2412         local subcommand="$(__git_find_on_cmdline "$subcommands")"
2413         if [ -z "$subcommand" ]; then
2414                 case "$cur" in
2415                 --*)
2416                         __gitcomp "--quiet"
2417                         ;;
2418                 *)
2419                         __gitcomp "$subcommands"
2420                         ;;
2421                 esac
2422                 return
2423         fi
2424
2425         case "$subcommand,$cur" in
2426         add,--*)
2427                 __gitcomp "--branch --force --name --reference --depth"
2428                 ;;
2429         status,--*)
2430                 __gitcomp "--cached --recursive"
2431                 ;;
2432         deinit,--*)
2433                 __gitcomp "--force --all"
2434                 ;;
2435         update,--*)
2436                 __gitcomp "
2437                         --init --remote --no-fetch
2438                         --recommend-shallow --no-recommend-shallow
2439                         --force --rebase --merge --reference --depth --recursive --jobs
2440                 "
2441                 ;;
2442         summary,--*)
2443                 __gitcomp "--cached --files --summary-limit"
2444                 ;;
2445         foreach,--*|sync,--*)
2446                 __gitcomp "--recursive"
2447                 ;;
2448         *)
2449                 ;;
2450         esac
2451 }
2452
2453 _git_svn ()
2454 {
2455         local subcommands="
2456                 init fetch clone rebase dcommit log find-rev
2457                 set-tree commit-diff info create-ignore propget
2458                 proplist show-ignore show-externals branch tag blame
2459                 migrate mkdirs reset gc
2460                 "
2461         local subcommand="$(__git_find_on_cmdline "$subcommands")"
2462         if [ -z "$subcommand" ]; then
2463                 __gitcomp "$subcommands"
2464         else
2465                 local remote_opts="--username= --config-dir= --no-auth-cache"
2466                 local fc_opts="
2467                         --follow-parent --authors-file= --repack=
2468                         --no-metadata --use-svm-props --use-svnsync-props
2469                         --log-window-size= --no-checkout --quiet
2470                         --repack-flags --use-log-author --localtime
2471                         --add-author-from
2472                         --ignore-paths= --include-paths= $remote_opts
2473                         "
2474                 local init_opts="
2475                         --template= --shared= --trunk= --tags=
2476                         --branches= --stdlayout --minimize-url
2477                         --no-metadata --use-svm-props --use-svnsync-props
2478                         --rewrite-root= --prefix= $remote_opts
2479                         "
2480                 local cmt_opts="
2481                         --edit --rmdir --find-copies-harder --copy-similarity=
2482                         "
2483
2484                 case "$subcommand,$cur" in
2485                 fetch,--*)
2486                         __gitcomp "--revision= --fetch-all $fc_opts"
2487                         ;;
2488                 clone,--*)
2489                         __gitcomp "--revision= $fc_opts $init_opts"
2490                         ;;
2491                 init,--*)
2492                         __gitcomp "$init_opts"
2493                         ;;
2494                 dcommit,--*)
2495                         __gitcomp "
2496                                 --merge --strategy= --verbose --dry-run
2497                                 --fetch-all --no-rebase --commit-url
2498                                 --revision --interactive $cmt_opts $fc_opts
2499                                 "
2500                         ;;
2501                 set-tree,--*)
2502                         __gitcomp "--stdin $cmt_opts $fc_opts"
2503                         ;;
2504                 create-ignore,--*|propget,--*|proplist,--*|show-ignore,--*|\
2505                 show-externals,--*|mkdirs,--*)
2506                         __gitcomp "--revision="
2507                         ;;
2508                 log,--*)
2509                         __gitcomp "
2510                                 --limit= --revision= --verbose --incremental
2511                                 --oneline --show-commit --non-recursive
2512                                 --authors-file= --color
2513                                 "
2514                         ;;
2515                 rebase,--*)
2516                         __gitcomp "
2517                                 --merge --verbose --strategy= --local
2518                                 --fetch-all --dry-run $fc_opts
2519                                 "
2520                         ;;
2521                 commit-diff,--*)
2522                         __gitcomp "--message= --file= --revision= $cmt_opts"
2523                         ;;
2524                 info,--*)
2525                         __gitcomp "--url"
2526                         ;;
2527                 branch,--*)
2528                         __gitcomp "--dry-run --message --tag"
2529                         ;;
2530                 tag,--*)
2531                         __gitcomp "--dry-run --message"
2532                         ;;
2533                 blame,--*)
2534                         __gitcomp "--git-format"
2535                         ;;
2536                 migrate,--*)
2537                         __gitcomp "
2538                                 --config-dir= --ignore-paths= --minimize
2539                                 --no-auth-cache --username=
2540                                 "
2541                         ;;
2542                 reset,--*)
2543                         __gitcomp "--revision= --parent"
2544                         ;;
2545                 *)
2546                         ;;
2547                 esac
2548         fi
2549 }
2550
2551 _git_tag ()
2552 {
2553         local i c=1 f=0
2554         while [ $c -lt $cword ]; do
2555                 i="${words[c]}"
2556                 case "$i" in
2557                 -d|--delete|-v|--verify)
2558                         __gitcomp_direct "$(__git_tags "" "$cur" " ")"
2559                         return
2560                         ;;
2561                 -f)
2562                         f=1
2563                         ;;
2564                 esac
2565                 ((c++))
2566         done
2567
2568         case "$prev" in
2569         -m|-F)
2570                 ;;
2571         -*|tag)
2572                 if [ $f = 1 ]; then
2573                         __gitcomp_direct "$(__git_tags "" "$cur" " ")"
2574                 fi
2575                 ;;
2576         *)
2577                 __git_complete_refs
2578                 ;;
2579         esac
2580
2581         case "$cur" in
2582         --*)
2583                 __gitcomp_builtin tag
2584                 ;;
2585         esac
2586 }
2587
2588 _git_whatchanged ()
2589 {
2590         _git_log
2591 }
2592
2593 _git_worktree ()
2594 {
2595         local subcommands="add list lock move prune remove unlock"
2596         local subcommand="$(__git_find_on_cmdline "$subcommands")"
2597         if [ -z "$subcommand" ]; then
2598                 __gitcomp "$subcommands"
2599         else
2600                 case "$subcommand,$cur" in
2601                 add,--*)
2602                         __gitcomp_builtin worktree_add
2603                         ;;
2604                 list,--*)
2605                         __gitcomp_builtin worktree_list
2606                         ;;
2607                 lock,--*)
2608                         __gitcomp_builtin worktree_lock
2609                         ;;
2610                 prune,--*)
2611                         __gitcomp_builtin worktree_prune
2612                         ;;
2613                 remove,--*)
2614                         __gitcomp "--force"
2615                         ;;
2616                 *)
2617                         ;;
2618                 esac
2619         fi
2620 }
2621
2622 __git_complete_common () {
2623         local command="$1"
2624
2625         case "$cur" in
2626         --*)
2627                 __gitcomp_builtin "$command"
2628                 ;;
2629         esac
2630 }
2631
2632 __git_cmds_with_parseopt_helper=
2633 __git_support_parseopt_helper () {
2634         test -n "$__git_cmds_with_parseopt_helper" ||
2635                 __git_cmds_with_parseopt_helper="$(__git --list-cmds=parseopt)"
2636
2637         case " $__git_cmds_with_parseopt_helper " in
2638         *" $1 "*)
2639                 return 0
2640                 ;;
2641         *)
2642                 return 1
2643                 ;;
2644         esac
2645 }
2646
2647 __git_complete_command () {
2648         local command="$1"
2649         local completion_func="_git_${command//-/_}"
2650         if ! declare -f $completion_func >/dev/null 2>/dev/null &&
2651                 declare -f _completion_loader >/dev/null 2>/dev/null
2652         then
2653                 _completion_loader "git-$command"
2654         fi
2655         if declare -f $completion_func >/dev/null 2>/dev/null
2656         then
2657                 $completion_func
2658                 return 0
2659         elif __git_support_parseopt_helper "$command"
2660         then
2661                 __git_complete_common "$command"
2662                 return 0
2663         else
2664                 return 1
2665         fi
2666 }
2667
2668 __git_main ()
2669 {
2670         local i c=1 command __git_dir __git_repo_path
2671         local __git_C_args C_args_count=0
2672
2673         while [ $c -lt $cword ]; do
2674                 i="${words[c]}"
2675                 case "$i" in
2676                 --git-dir=*) __git_dir="${i#--git-dir=}" ;;
2677                 --git-dir)   ((c++)) ; __git_dir="${words[c]}" ;;
2678                 --bare)      __git_dir="." ;;
2679                 --help) command="help"; break ;;
2680                 -c|--work-tree|--namespace) ((c++)) ;;
2681                 -C)     __git_C_args[C_args_count++]=-C
2682                         ((c++))
2683                         __git_C_args[C_args_count++]="${words[c]}"
2684                         ;;
2685                 -*) ;;
2686                 *) command="$i"; break ;;
2687                 esac
2688                 ((c++))
2689         done
2690
2691         if [ -z "$command" ]; then
2692                 case "$prev" in
2693                 --git-dir|-C|--work-tree)
2694                         # these need a path argument, let's fall back to
2695                         # Bash filename completion
2696                         return
2697                         ;;
2698                 -c|--namespace)
2699                         # we don't support completing these options' arguments
2700                         return
2701                         ;;
2702                 esac
2703                 case "$cur" in
2704                 --*)   __gitcomp "
2705                         --paginate
2706                         --no-pager
2707                         --git-dir=
2708                         --bare
2709                         --version
2710                         --exec-path
2711                         --exec-path=
2712                         --html-path
2713                         --man-path
2714                         --info-path
2715                         --work-tree=
2716                         --namespace=
2717                         --no-replace-objects
2718                         --help
2719                         "
2720                         ;;
2721                 *)
2722                         if test -n "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
2723                         then
2724                                 __gitcomp "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
2725                         else
2726                                 __gitcomp "$(git --list-cmds=list-mainporcelain,others,nohelpers,alias,list-complete,config)"
2727                         fi
2728                         ;;
2729                 esac
2730                 return
2731         fi
2732
2733         __git_complete_command "$command" && return
2734
2735         local expansion=$(__git_aliased_command "$command")
2736         if [ -n "$expansion" ]; then
2737                 words[1]=$expansion
2738                 __git_complete_command "$expansion"
2739         fi
2740 }
2741
2742 __gitk_main ()
2743 {
2744         __git_has_doubledash && return
2745
2746         local __git_repo_path
2747         __git_find_repo_path
2748
2749         local merge=""
2750         if [ -f "$__git_repo_path/MERGE_HEAD" ]; then
2751                 merge="--merge"
2752         fi
2753         case "$cur" in
2754         --*)
2755                 __gitcomp "
2756                         $__git_log_common_options
2757                         $__git_log_gitk_options
2758                         $merge
2759                         "
2760                 return
2761                 ;;
2762         esac
2763         __git_complete_revlist
2764 }
2765
2766 if [[ -n ${ZSH_VERSION-} ]]; then
2767         echo "WARNING: this script is deprecated, please see git-completion.zsh" 1>&2
2768
2769         autoload -U +X compinit && compinit
2770
2771         __gitcomp ()
2772         {
2773                 emulate -L zsh
2774
2775                 local cur_="${3-$cur}"
2776
2777                 case "$cur_" in
2778                 --*=)
2779                         ;;
2780                 *)
2781                         local c IFS=$' \t\n'
2782                         local -a array
2783                         for c in ${=1}; do
2784                                 c="$c${4-}"
2785                                 case $c in
2786                                 --*=*|*.) ;;
2787                                 *) c="$c " ;;
2788                                 esac
2789                                 array[${#array[@]}+1]="$c"
2790                         done
2791                         compset -P '*[=:]'
2792                         compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
2793                         ;;
2794                 esac
2795         }
2796
2797         __gitcomp_direct ()
2798         {
2799                 emulate -L zsh
2800
2801                 local IFS=$'\n'
2802                 compset -P '*[=:]'
2803                 compadd -Q -- ${=1} && _ret=0
2804         }
2805
2806         __gitcomp_nl ()
2807         {
2808                 emulate -L zsh
2809
2810                 local IFS=$'\n'
2811                 compset -P '*[=:]'
2812                 compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
2813         }
2814
2815         __gitcomp_file ()
2816         {
2817                 emulate -L zsh
2818
2819                 local IFS=$'\n'
2820                 compset -P '*[=:]'
2821                 compadd -Q -p "${2-}" -f -- ${=1} && _ret=0
2822         }
2823
2824         _git ()
2825         {
2826                 local _ret=1 cur cword prev
2827                 cur=${words[CURRENT]}
2828                 prev=${words[CURRENT-1]}
2829                 let cword=CURRENT-1
2830                 emulate ksh -c __${service}_main
2831                 let _ret && _default && _ret=0
2832                 return _ret
2833         }
2834
2835         compdef _git git gitk
2836         return
2837 fi
2838
2839 __git_func_wrap ()
2840 {
2841         local cur words cword prev
2842         _get_comp_words_by_ref -n =: cur words cword prev
2843         $1
2844 }
2845
2846 # Setup completion for certain functions defined above by setting common
2847 # variables and workarounds.
2848 # This is NOT a public function; use at your own risk.
2849 __git_complete ()
2850 {
2851         local wrapper="__git_wrap${2}"
2852         eval "$wrapper () { __git_func_wrap $2 ; }"
2853         complete -o bashdefault -o default -o nospace -F $wrapper $1 2>/dev/null \
2854                 || complete -o default -o nospace -F $wrapper $1
2855 }
2856
2857 # wrapper for backwards compatibility
2858 _git ()
2859 {
2860         __git_wrap__git_main
2861 }
2862
2863 # wrapper for backwards compatibility
2864 _gitk ()
2865 {
2866         __git_wrap__gitk_main
2867 }
2868
2869 __git_complete git __git_main
2870 __git_complete gitk __gitk_main
2871
2872 # The following are necessary only for Cygwin, and only are needed
2873 # when the user has tab-completed the executable name and consequently
2874 # included the '.exe' suffix.
2875 #
2876 if [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
2877 __git_complete git.exe __git_main
2878 fi