#!bash
#
# bash/zsh completion support for core Git.
#
# Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>
# Conceptually based on gitcompletion (http://gitweb.hawaga.org.uk/).
# Distributed under the GNU General Public License, version 2.0.
#
# The contained completion routines provide support for completing:
#
#    *) local and remote branch names
#    *) local and remote tag names
#    *) .git/remotes file names
#    *) git 'subcommands'
#    *) tree paths within 'ref:path/to/file' expressions
#    *) file paths within current working directory and index
#    *) common --long-options
#
# To use these routines:
#
#    1) Copy this file to somewhere (e.g. ~/.git-completion.sh).
#    2) Add the following line to your .bashrc/.zshrc:
#        source ~/.git-completion.sh
#    3) Consider changing your PS1 to also show the current branch,
#       see git-prompt.sh for details.

case "$COMP_WORDBREAKS" in
*:*) : great ;;
*)   COMP_WORDBREAKS="$COMP_WORDBREAKS:"
esac

# __gitdir accepts 0 or 1 arguments (i.e., location)
# returns location of .git repo
__gitdir ()
{
  if [ -z "${1-}" ]; then
    if [ -n "${__git_dir-}" ]; then
      echo "$__git_dir"
    elif [ -n "${GIT_DIR-}" ]; then
      test -d "${GIT_DIR-}" || return 1
      echo "$GIT_DIR"
    elif [ -d .git ]; then
      echo .git
    else
      git rev-parse --git-dir 2>/dev/null
    fi
  elif [ -d "$1/.git" ]; then
    echo "$1/.git"
  else
    echo "$1"
  fi
}

# The following function is based on code from:
#
#   bash_completion - programmable completion functions for bash 3.2+
#
#   Copyright © 2006-2008, Ian Macdonald <ian@caliban.org>
#             © 2009-2010, Bash Completion Maintainers
#                     <bash-completion-devel@lists.alioth.debian.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2, or (at your option)
#   any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software Foundation,
#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#   The latest version of this software can be obtained here:
#
#   http://bash-completion.alioth.debian.org/
#
#   RELEASE: 2.x

# This function can be used to access a tokenized list of words
# on the command line:
#
# __git_reassemble_comp_words_by_ref '=:'
# if test "${words_[cword_-1]}" = -w
# then
#   ...
# fi
#
# The argument should be a collection of characters from the list of
# word completion separators (COMP_WORDBREAKS) to treat as ordinary
# characters.
#
# This is roughly equivalent to going back in time and setting
# COMP_WORDBREAKS to exclude those characters.  The intent is to
# make option types like --date=<type> and <rev>:<path> easy to
# recognize by treating each shell word as a single token.
#
# It is best not to set COMP_WORDBREAKS directly because the value is
# shared with other completion scripts.  By the time the completion
# function gets called, COMP_WORDS has already been populated so local
# changes to COMP_WORDBREAKS have no effect.
#
# Output: words_, cword_, cur_.

__git_reassemble_comp_words_by_ref()
{
  local exclude i j first
  # Which word separators to exclude?
  exclude="${1//[^$COMP_WORDBREAKS]}"
  cword_=$COMP_CWORD
  if [ -z "$exclude" ]; then
    words_=("${COMP_WORDS[@]}")
    return
  fi
  # List of word completion separators has shrunk;
  # re-assemble words to complete.
  for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
    # Append each nonempty word consisting of just
    # word separator characters to the current word.
    first=t
    while
      [ $i -gt 0 ] &&
      [ -n "${COMP_WORDS[$i]}" ] &&
      # word consists of excluded word separators
      [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
    do
      # Attach to the previous token,
      # unless the previous token is the command name.
      if [ $j -ge 2 ] && [ -n "$first" ]; then
        ((j--))
      fi
      first=
      words_[$j]=${words_[j]}${COMP_WORDS[i]}
      if [ $i = $COMP_CWORD ]; then
        cword_=$j
      fi
      if (($i < ${#COMP_WORDS[@]} - 1)); then
        ((i++))
      else
        # Done.
        return
      fi
    done
    words_[$j]=${words_[j]}${COMP_WORDS[i]}
    if [ $i = $COMP_CWORD ]; then
      cword_=$j
    fi
  done
}

if ! type _get_comp_words_by_ref >/dev/null 2>&1; then
_get_comp_words_by_ref ()
{
  local exclude cur_ words_ cword_
  if [ "$1" = "-n" ]; then
    exclude=$2
    shift 2
  fi
  __git_reassemble_comp_words_by_ref "$exclude"
  cur_=${words_[cword_]}
  while [ $# -gt 0 ]; do
    case "$1" in
    cur)
      cur=$cur_
      ;;
    prev)
      prev=${words_[$cword_-1]}
      ;;
    words)
      words=("${words_[@]}")
      ;;
    cword)
      cword=$cword_
      ;;
    esac
    shift
  done
}
fi

__gitcompadd ()
{
  local i=0
  for x in $1; do
    if [[ "$x" == "$3"* ]]; then
      COMPREPLY[i++]="$2$x$4"
    fi
  done
}

# Generates completion reply, appending a space to possible completion words,
# if necessary.
# It accepts 1 to 4 arguments:
# 1: List of possible completion words.
# 2: A prefix to be added to each possible completion word (optional).
# 3: Generate possible completion matches for this word (optional).
# 4: A suffix to be appended to each possible completion word (optional).
__gitcomp ()
{
  local cur_="${3-$cur}"

  case "$cur_" in
  --*=)
    ;;
  *)
    local c i=0 IFS=$' \t\n'
    for c in $1; do
      c="$c${4-}"
      if [[ $c == "$cur_"* ]]; then
        case $c in
        --*=*|*.) ;;
        *) c="$c " ;;
        esac
        COMPREPLY[i++]="${2-}$c"
      fi
    done
    ;;
  esac
}

# Generates completion reply from newline-separated possible completion words
# by appending a space to all of them.
# It accepts 1 to 4 arguments:
# 1: List of possible completion words, separated by a single newline.
# 2: A prefix to be added to each possible completion word (optional).
# 3: Generate possible completion matches for this word (optional).
# 4: A suffix to be appended to each possible completion word instead of
#    the default space (optional).  If specified but empty, nothing is
#    appended.
__gitcomp_nl ()
{
  local IFS=$'\n'
  __gitcompadd "$1" "${2-}" "${3-$cur}" "${4- }"
}

# Generates completion reply with compgen from newline-separated possible
# completion filenames.
# It accepts 1 to 3 arguments:
# 1: List of possible completion filenames, separated by a single newline.
# 2: A directory prefix to be added to each possible completion filename
#    (optional).
# 3: Generate possible completion matches for this word (optional).
__gitcomp_file ()
{
  local IFS=$'\n'

  # XXX does not work when the directory prefix contains a tilde,
  # since tilde expansion is not applied.
  # This means that COMPREPLY will be empty and Bash default
  # completion will be used.
  __gitcompadd "$1" "${2-}" "${3-$cur}" ""

  # use a hack to enable file mode in bash < 4
  compopt -o filenames +o nospace 2>/dev/null ||
  compgen -f /non-existing-dir/ > /dev/null
}

# Execute 'git ls-files', unless the --committable option is specified, in
# which case it runs 'git diff-index' to find out the files that can be
# committed.  It return paths relative to the directory specified in the first
# argument, and using the options specified in the second argument.
__git_ls_files_helper ()
{
  (
    test -n "${CDPATH+set}" && unset CDPATH
    cd "$1"
    if [ "$2" == "--committable" ]; then
      git diff-index --name-only --relative HEAD
    else
      # NOTE: $2 is not quoted in order to support multiple options
      git ls-files --exclude-standard $2
    fi
  ) 2>/dev/null
}


# __git_index_files accepts 1 or 2 arguments:
# 1: Options to pass to ls-files (required).
# 2: A directory path (optional).
#    If provided, only files within the specified directory are listed.
#    Sub directories are never recursed.  Path must have a trailing
#    slash.
__git_index_files ()
{
  local dir="$(__gitdir)" root="${2-.}" file

  if [ -d "$dir" ]; then
    __git_ls_files_helper "$root" "$1" |
    while read -r file; do
      case "$file" in
      ?*/*) echo "${file%%/*}" ;;
      *) echo "$file" ;;
      esac
    done | sort | uniq
  fi
}

__git_heads ()
{
  local dir="$(__gitdir)"
  if [ -d "$dir" ]; then
    git --git-dir="$dir" for-each-ref --format='%(refname:short)' \
      refs/heads
    return
  fi
}

__git_tags ()
{
  local dir="$(__gitdir)"
  if [ -d "$dir" ]; then
    git --git-dir="$dir" for-each-ref --format='%(refname:short)' \
      refs/tags
    return
  fi
}

# __git_refs accepts 0, 1 (to pass to __gitdir), or 2 arguments
# presence of 2nd argument means use the guess heuristic employed
# by checkout for tracking branches
__git_refs ()
{
  local i hash dir="$(__gitdir "${1-}")" track="${2-}"
  local format refs
  if [ -d "$dir" ]; then
    case "$cur" in
    refs|refs/*)
      format="refname"
      refs="${cur%/*}"
      track=""
      ;;
    *)
      for i in HEAD FETCH_HEAD ORIG_HEAD MERGE_HEAD; do
        if [ -e "$dir/$i" ]; then echo $i; fi
      done
      format="refname:short"
      refs="refs/tags refs/heads refs/remotes"
      ;;
    esac
    git --git-dir="$dir" for-each-ref --format="%($format)" \
      $refs
    if [ -n "$track" ]; then
      # employ the heuristic used by git checkout
      # Try to find a remote branch that matches the completion word
      # but only output if the branch name is unique
      local ref entry
      git --git-dir="$dir" for-each-ref --shell --format="ref=%(refname:short)" \
        "refs/remotes/" | \
      while read -r entry; do
        eval "$entry"
        ref="${ref#*/}"
        if [[ "$ref" == "$cur"* ]]; then
          echo "$ref"
        fi
      done | sort | uniq -u
    fi
    return
  fi
  case "$cur" in
  refs|refs/*)
    git ls-remote "$dir" "$cur*" 2>/dev/null | \
    while read -r hash i; do
      case "$i" in
      *^{}) ;;
      *) echo "$i" ;;
      esac
    done
    ;;
  *)
    echo "HEAD"
    git for-each-ref --format="%(refname:short)" -- "refs/remotes/$dir/" | sed -e "s#^$dir/##"
    ;;
  esac
}

# __git_refs2 requires 1 argument (to pass to __git_refs)
__git_refs2 ()
{
  local i
  for i in $(__git_refs "$1"); do
    echo "$i:$i"
  done
}

# __git_refs_remotes requires 1 argument (to pass to ls-remote)
__git_refs_remotes ()
{
  local i hash
  git ls-remote "$1" 'refs/heads/*' 2>/dev/null | \
  while read -r hash i; do
    echo "$i:refs/remotes/$1/${i#refs/heads/}"
  done
}

__git_remotes ()
{
  local i IFS=$'\n' d="$(__gitdir)"
  test -d "$d/remotes" && ls -1 "$d/remotes"
  for i in $(git --git-dir="$d" config --get-regexp 'remote\..*\.url' 2>/dev/null); do
    i="${i#remote.}"
    echo "${i/.url*/}"
  done
}

__git_list_merge_strategies ()
{
  git merge -s help 2>&1 |
  sed -n -e '/[Aa]vailable strategies are: /,/^$/{
    s/\.$//
    s/.*://
    s/^[  ]*//
    s/[   ]*$//
    p
  }'
}

__git_merge_strategies=
# 'git merge -s help' (and thus detection of the merge strategy
# list) fails, unfortunately, if run outside of any git working
# tree.  __git_merge_strategies is set to the empty string in
# that case, and the detection will be repeated the next time it
# is needed.
__git_compute_merge_strategies ()
{
  test -n "$__git_merge_strategies" ||
  __git_merge_strategies=$(__git_list_merge_strategies)
}

__git_complete_revlist_file ()
{
  local pfx ls ref cur_="$cur"
  case "$cur_" in
  *..?*:*)
    return
    ;;
  ?*:*)
    ref="${cur_%%:*}"
    cur_="${cur_#*:}"
    case "$cur_" in
    ?*/*)
      pfx="${cur_%/*}"
      cur_="${cur_##*/}"
      ls="$ref:$pfx"
      pfx="$pfx/"
      ;;
    *)
      ls="$ref"
      ;;
    esac

    case "$COMP_WORDBREAKS" in
    *:*) : great ;;
    *)   pfx="$ref:$pfx" ;;
    esac

    __gitcomp_nl "$(git --git-dir="$(__gitdir)" ls-tree "$ls" 2>/dev/null \
        | sed '/^100... blob /{
                   s,^.*  ,,
                   s,$, ,
               }
               /^120000 blob /{
                   s,^.*  ,,
                   s,$, ,
               }
               /^040000 tree /{
                   s,^.*  ,,
                   s,$,/,
               }
               s/^.*  //')" \
      "$pfx" "$cur_" ""
    ;;
  *...*)
    pfx="${cur_%...*}..."
    cur_="${cur_#*...}"
    __gitcomp_nl "$(__git_refs)" "$pfx" "$cur_"
    ;;
  *..*)
    pfx="${cur_%..*}.."
    cur_="${cur_#*..}"
    __gitcomp_nl "$(__git_refs)" "$pfx" "$cur_"
    ;;
  *)
    __gitcomp_nl "$(__git_refs)"
    ;;
  esac
}


# __git_complete_index_file requires 1 argument:
# 1: the options to pass to ls-file
#
# The exception is --committable, which finds the files appropriate commit.
__git_complete_index_file ()
{
  local pfx="" cur_="$cur"

  case "$cur_" in
  ?*/*)
    pfx="${cur_%/*}"
    cur_="${cur_##*/}"
    pfx="${pfx}/"
    ;;
  esac

  __gitcomp_file "$(__git_index_files "$1" "$pfx")" "$pfx" "$cur_"
}

__git_complete_file ()
{
  __git_complete_revlist_file
}

__git_complete_revlist ()
{
  __git_complete_revlist_file
}

__git_complete_remote_or_refspec ()
{
  local cur_="$cur" cmd="${words[1]}"
  local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
  if [ "$cmd" = "remote" ]; then
    ((c++))
  fi
  while [ $c -lt $cword ]; do
    i="${words[c]}"
    case "$i" in
    --mirror) [ "$cmd" = "push" ] && no_complete_refspec=1 ;;
    --all)
      case "$cmd" in
      push) no_complete_refspec=1 ;;
      fetch)
        return
        ;;
      *) ;;
      esac
      ;;
    -*) ;;
    *) remote="$i"; break ;;
    esac
    ((c++))
  done
  if [ -z "$remote" ]; then
    __gitcomp_nl "$(__git_remotes)"
    return
  fi
  if [ $no_complete_refspec = 1 ]; then
    return
  fi
  [ "$remote" = "." ] && remote=
  case "$cur_" in
  *:*)
    case "$COMP_WORDBREAKS" in
    *:*) : great ;;
    *)   pfx="${cur_%%:*}:" ;;
    esac
    cur_="${cur_#*:}"
    lhs=0
    ;;
  +*)
    pfx="+"
    cur_="${cur_#+}"
    ;;
  esac
  case "$cmd" in
  fetch)
    if [ $lhs = 1 ]; then
      __gitcomp_nl "$(__git_refs2 "$remote")" "$pfx" "$cur_"
    else
      __gitcomp_nl "$(__git_refs)" "$pfx" "$cur_"
    fi
    ;;
  pull|remote)
    if [ $lhs = 1 ]; then
      __gitcomp_nl "$(__git_refs "$remote")" "$pfx" "$cur_"
    else
      __gitcomp_nl "$(__git_refs)" "$pfx" "$cur_"
    fi
    ;;
  push)
    if [ $lhs = 1 ]; then
      __gitcomp_nl "$(__git_refs)" "$pfx" "$cur_"
    else
      __gitcomp_nl "$(__git_refs "$remote")" "$pfx" "$cur_"
    fi
    ;;
  esac
}

__git_complete_strategy ()
{
  __git_compute_merge_strategies
  case "$prev" in
  -s|--strategy)
    __gitcomp "$__git_merge_strategies"
    return 0
  esac
  case "$cur" in
  --strategy=*)
    __gitcomp "$__git_merge_strategies" "" "${cur##--strategy=}"
    return 0
    ;;
  esac
  return 1
}

__git_commands () {
  if test -n "${GIT_TESTING_COMMAND_COMPLETION:-}"
  then
    printf "%s" "${GIT_TESTING_COMMAND_COMPLETION}"
  else
    git help -a|egrep '^  [a-zA-Z0-9]'
  fi
}

__git_list_all_commands ()
{
  local i IFS=" "$'\n'
  for i in $(__git_commands)
  do
    case $i in
    *--*)             : helper pattern;;
    *) echo $i;;
    esac
  done
}

__git_all_commands=
__git_compute_all_commands ()
{
  test -n "$__git_all_commands" ||
  __git_all_commands=$(__git_list_all_commands)
}

__git_list_porcelain_commands ()
{
  local i IFS=" "$'\n'
  __git_compute_all_commands
  for i in $__git_all_commands
  do
    case $i in
    *--*)             : helper pattern;;
    applymbox)        : ask gittus;;
    applypatch)       : ask gittus;;
    archimport)       : import;;
    cat-file)         : plumbing;;
    check-attr)       : plumbing;;
    check-ignore)     : plumbing;;
    check-mailmap)    : plumbing;;
    check-ref-format) : plumbing;;
    checkout-index)   : plumbing;;
    commit-tree)      : plumbing;;
    count-objects)    : infrequent;;
    credential-cache) : credentials helper;;
    credential-store) : credentials helper;;
    cvsexportcommit)  : export;;
    cvsimport)        : import;;
    cvsserver)        : daemon;;
    daemon)           : daemon;;
    diff-files)       : plumbing;;
    diff-index)       : plumbing;;
    diff-tree)        : plumbing;;
    fast-import)      : import;;
    fast-export)      : export;;
    fsck-objects)     : plumbing;;
    fetch-pack)       : plumbing;;
    fmt-merge-msg)    : plumbing;;
    for-each-ref)     : plumbing;;
    hash-object)      : plumbing;;
    http-*)           : transport;;
    index-pack)       : plumbing;;
    init-db)          : deprecated;;
    local-fetch)      : plumbing;;
    lost-found)       : infrequent;;
    ls-files)         : plumbing;;
    ls-remote)        : plumbing;;
    ls-tree)          : plumbing;;
    mailinfo)         : plumbing;;
    mailsplit)        : plumbing;;
    merge-*)          : plumbing;;
    mktree)           : plumbing;;
    mktag)            : plumbing;;
    pack-objects)     : plumbing;;
    pack-redundant)   : plumbing;;
    pack-refs)        : plumbing;;
    parse-remote)     : plumbing;;
    patch-id)         : plumbing;;
    peek-remote)      : plumbing;;
    prune)            : plumbing;;
    prune-packed)     : plumbing;;
    quiltimport)      : import;;
    read-tree)        : plumbing;;
    receive-pack)     : plumbing;;
    remote-*)         : transport;;
    repo-config)      : deprecated;;
    rerere)           : plumbing;;
    rev-list)         : plumbing;;
    rev-parse)        : plumbing;;
    runstatus)        : plumbing;;
    sh-setup)         : internal;;
    shell)            : daemon;;
    show-ref)         : plumbing;;
    send-pack)        : plumbing;;
    show-index)       : plumbing;;
    ssh-*)            : transport;;
    stripspace)       : plumbing;;
    symbolic-ref)     : plumbing;;
    tar-tree)         : deprecated;;
    unpack-file)      : plumbing;;
    unpack-objects)   : plumbing;;
    update-index)     : plumbing;;
    update-ref)       : plumbing;;
    update-server-info) : daemon;;
    upload-archive)   : plumbing;;
    upload-pack)      : plumbing;;
    write-tree)       : plumbing;;
    var)              : infrequent;;
    verify-pack)      : infrequent;;
    verify-tag)       : plumbing;;
    *) echo $i;;
    esac
  done
}

__git_porcelain_commands=
__git_compute_porcelain_commands ()
{
  __git_compute_all_commands
  test -n "$__git_porcelain_commands" ||
  __git_porcelain_commands=$(__git_list_porcelain_commands)
}

__git_pretty_aliases ()
{
  local i IFS=$'\n'
  for i in $(git --git-dir="$(__gitdir)" config --get-regexp "pretty\..*" 2>/dev/null); do
    case "$i" in
    pretty.*)
      i="${i#pretty.}"
      echo "${i/ */}"
      ;;
    esac
  done
}

__git_aliases ()
{
  local i IFS=$'\n'
  for i in $(git --git-dir="$(__gitdir)" config --get-regexp "alias\..*" 2>/dev/null); do
    case "$i" in
    alias.*)
      i="${i#alias.}"
      echo "${i/ */}"
      ;;
    esac
  done
}

# __git_aliased_command requires 1 argument
__git_aliased_command ()
{
  local word cmdline=$(git --git-dir="$(__gitdir)" \
    config --get "alias.$1")
  for word in $cmdline; do
    case "$word" in
    \!gitk|gitk)
      echo "gitk"
      return
      ;;
    \!*)  : shell command alias ;;
    -*) : option ;;
    *=*)  : setting env ;;
    git)  : git itself ;;
    *)
      echo "$word"
      return
    esac
  done
}

# __git_find_on_cmdline requires 1 argument
__git_find_on_cmdline ()
{
  local word subcommand c=1
  while [ $c -lt $cword ]; do
    word="${words[c]}"
    for subcommand in $1; do
      if [ "$subcommand" = "$word" ]; then
        echo "$subcommand"
        return
      fi
    done
    ((c++))
  done
}

__git_has_doubledash ()
{
  local c=1
  while [ $c -lt $cword ]; do
    if [ "--" = "${words[c]}" ]; then
      return 0
    fi
    ((c++))
  done
  return 1
}

# Try to count non option arguments passed on the command line for the
# specified git command.
# When options are used, it is necessary to use the special -- option to
# tell the implementation were non option arguments begin.
# XXX this can not be improved, since options can appear everywhere, as
# an example:
# git mv x -n y
#
# __git_count_arguments requires 1 argument: the git command executed.
__git_count_arguments ()
{
  local word i c=0

  # Skip "git" (first argument)
  for ((i=1; i < ${#words[@]}; i++)); do
    word="${words[i]}"

    case "$word" in
      --)
        # Good; we can assume that the following are only non
        # option arguments.
        ((c = 0))
        ;;
      "$1")
        # Skip the specified git command and discard git
        # main options
        ((c = 0))
        ;;
      ?*)
        ((c++))
        ;;
    esac
  done

  printf "%d" $c
}

__git_whitespacelist="nowarn warn error error-all fix"

_git_am ()
{
  local dir="$(__gitdir)"
  if [ -d "$dir"/rebase-apply ]; then
    __gitcomp "--skip --continue --resolved --abort"
    return
  fi
  case "$cur" in
  --whitespace=*)
    __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
    return
    ;;
  --*)
    __gitcomp "
      --3way --committer-date-is-author-date --ignore-date
      --ignore-whitespace --ignore-space-change
      --interactive --keep --no-utf8 --signoff --utf8
      --whitespace= --scissors
      "
    return
  esac
}

_git_apply ()
{
  case "$cur" in
  --whitespace=*)
    __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
    return
    ;;
  --*)
    __gitcomp "
      --stat --numstat --summary --check --index
      --cached --index-info --reverse --reject --unidiff-zero
      --apply --no-add --exclude=
      --ignore-whitespace --ignore-space-change
      --whitespace= --inaccurate-eof --verbose
      "
    return
  esac
}

_git_add ()
{
  case "$cur" in
  --*)
    __gitcomp "
      --interactive --refresh --patch --update --dry-run
      --ignore-errors --intent-to-add
      "
    return
  esac

  # XXX should we check for --update and --all options ?
  __git_complete_index_file "--others --modified"
}

_git_archive ()
{
  case "$cur" in
  --format=*)
    __gitcomp "$(git archive --list)" "" "${cur##--format=}"
    return
    ;;
  --remote=*)
    __gitcomp_nl "$(__git_remotes)" "" "${cur##--remote=}"
    return
    ;;
  --*)
    __gitcomp "
      --format= --list --verbose
      --prefix= --remote= --exec=
      "
    return
    ;;
  esac
  __git_complete_file
}

_git_bisect ()
{
  __git_has_doubledash && return

  local subcommands="start bad good skip reset visualize replay log run"
  local subcommand="$(__git_find_on_cmdline "$subcommands")"
  if [ -z "$subcommand" ]; then
    if [ -f "$(__gitdir)"/BISECT_START ]; then
      __gitcomp "$subcommands"
    else
      __gitcomp "replay start"
    fi
    return
  fi

  case "$subcommand" in
  bad|good|reset|skip|start)
    __gitcomp_nl "$(__git_refs)"
    ;;
  *)
    ;;
  esac
}

_git_branch ()
{
  local i c=1 only_local_ref="n" has_r="n"

  while [ $c -lt $cword ]; do
    i="${words[c]}"
    case "$i" in
    -d|-m)  only_local_ref="y" ;;
    -r) has_r="y" ;;
    esac
    ((c++))
  done

  case "$cur" in
  --set-upstream-to=*)
    __gitcomp "$(__git_refs)" "" "${cur##--set-upstream-to=}"
    ;;
  --*)
    __gitcomp "
      --color --no-color --verbose --abbrev= --no-abbrev
      --track --no-track --contains --merged --no-merged
      --set-upstream-to= --edit-description --list
      --unset-upstream
      "
    ;;
  *)
    if [ $only_local_ref = "y" -a $has_r = "n" ]; then
      __gitcomp_nl "$(__git_heads)"
    else
      __gitcomp_nl "$(__git_refs)"
    fi
    ;;
  esac
}

_git_bundle ()
{
  local cmd="${words[2]}"
  case "$cword" in
  2)
    __gitcomp "create list-heads verify unbundle"
    ;;
  3)
    # looking for a file
    ;;
  *)
    case "$cmd" in
      create)
        __git_complete_revlist
      ;;
    esac
    ;;
  esac
}

_git_checkout ()
{
  __git_has_doubledash && return

  case "$cur" in
  --conflict=*)
    __gitcomp "diff3 merge" "" "${cur##--conflict=}"
    ;;
  --*)
    __gitcomp "
      --quiet --ours --theirs --track --no-track --merge
      --conflict= --orphan --patch
      "
    ;;
  *)
    # check if --track, --no-track, or --no-guess was specified
    # if so, disable DWIM mode
    local flags="--track --no-track --no-guess" track=1
    if [ -n "$(__git_find_on_cmdline "$flags")" ]; then
      track=''
    fi
    __gitcomp_nl "$(__git_refs '' $track)"
    ;;
  esac
}

_git_cherry ()
{
  __gitcomp "$(__git_refs)"
}

_git_cherry_pick ()
{
  local dir="$(__gitdir)"
  if [ -f "$dir"/CHERRY_PICK_HEAD ]; then
    __gitcomp "--continue --quit --abort"
    return
  fi
  case "$cur" in
  --*)
    __gitcomp "--edit --no-commit --signoff --strategy= --mainline"
    ;;
  *)
    __gitcomp_nl "$(__git_refs)"
    ;;
  esac
}

_git_clean ()
{
  case "$cur" in
  --*)
    __gitcomp "--dry-run --quiet"
    return
    ;;
  esac

  # XXX should we check for -x option ?
  __git_complete_index_file "--others"
}

_git_clone ()
{
  case "$cur" in
  --*)
    __gitcomp "
      --local
      --no-hardlinks
      --shared
      --reference
      --quiet
      --no-checkout
      --bare
      --mirror
      --origin
      --upload-pack
      --template=
      --depth
      --single-branch
      --branch
      "
    return
    ;;
  esac
}

_git_commit ()
{
  case "$prev" in
  -c|-C)
    __gitcomp_nl "$(__git_refs)" "" "${cur}"
    return
    ;;
  esac

  case "$cur" in
  --cleanup=*)
    __gitcomp "default strip verbatim whitespace
      " "" "${cur##--cleanup=}"
    return
    ;;
  --reuse-message=*|--reedit-message=*|\
  --fixup=*|--squash=*)
    __gitcomp_nl "$(__git_refs)" "" "${cur#*=}"
    return
    ;;
  --untracked-files=*)
    __gitcomp "all no normal" "" "${cur##--untracked-files=}"
    return
    ;;
  --*)
    __gitcomp "
      --all --author= --signoff --verify --no-verify
      --edit --no-edit
      --amend --include --only --interactive
      --dry-run --reuse-message= --reedit-message=
      --reset-author --file= --message= --template=
      --cleanup= --untracked-files --untracked-files=
      --verbose --quiet --fixup= --squash=
      "
    return
  esac

  if git rev-parse --verify --quiet HEAD >/dev/null; then
    __git_complete_index_file "--committable"
  else
    # This is the first commit
    __git_complete_index_file "--cached"
  fi
}

_git_describe ()
{
  case "$cur" in
  --*)
    __gitcomp "
      --all --tags --contains --abbrev= --candidates=
      --exact-match --debug --long --match --always
      "
    return
  esac
  __gitcomp_nl "$(__git_refs)"
}

__git_diff_algorithms="myers minimal patience histogram"

__git_diff_common_options="--stat --numstat --shortstat --summary
      --patch-with-stat --name-only --name-status --color
      --no-color --color-words --no-renames --check
      --full-index --binary --abbrev --diff-filter=
      --find-copies-harder
      --text --ignore-space-at-eol --ignore-space-change
      --ignore-all-space --exit-code --quiet --ext-diff
      --no-ext-diff
      --no-prefix --src-prefix= --dst-prefix=
      --inter-hunk-context=
      --patience --histogram --minimal
      --raw --word-diff
      --dirstat --dirstat= --dirstat-by-file
      --dirstat-by-file= --cumulative
      --diff-algorithm=
"

_git_diff ()
{
  __git_has_doubledash && return

  case "$cur" in
  --diff-algorithm=*)
    __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
    return
    ;;
  --*)
    __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
      --base --ours --theirs --no-index
      $__git_diff_common_options
      "
    return
    ;;
  esac
  __git_complete_revlist_file
}

__git_mergetools_common="diffuse ecmerge emerge kdiff3 meld opendiff
      tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc3 codecompare
"

_git_difftool ()
{
  __git_has_doubledash && return

  case "$cur" in
  --tool=*)
    __gitcomp "$__git_mergetools_common kompare" "" "${cur##--tool=}"
    return
    ;;
  --*)
    __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
      --base --ours --theirs
      --no-renames --diff-filter= --find-copies-harder
      --relative --ignore-submodules
      --tool="
    return
    ;;
  esac
  __git_complete_revlist_file
}

__git_fetch_options="
  --quiet --verbose --append --upload-pack --force --keep --depth=
  --tags --no-tags --all --prune --dry-run
"

_git_fetch ()
{
  case "$cur" in
  --*)
    __gitcomp "$__git_fetch_options"
    return
    ;;
  esac
  __git_complete_remote_or_refspec
}

__git_format_patch_options="
  --stdout --attach --no-attach --thread --thread= --no-thread
  --numbered --start-number --numbered-files --keep-subject --signoff
  --signature --no-signature --in-reply-to= --cc= --full-index --binary
  --not --all --cover-letter --no-prefix --src-prefix= --dst-prefix=
  --inline --suffix= --ignore-if-in-upstream --subject-prefix=
  --output-directory --reroll-count --to= --quiet --notes
"

_git_format_patch ()
{
  case "$cur" in
  --thread=*)
    __gitcomp "
      deep shallow
      " "" "${cur##--thread=}"
    return
    ;;
  --*)
    __gitcomp "$__git_format_patch_options"
    return
    ;;
  esac
  __git_complete_revlist
}

_git_fsck ()
{
  case "$cur" in
  --*)
    __gitcomp "
      --tags --root --unreachable --cache --no-reflogs --full
      --strict --verbose --lost-found
      "
    return
    ;;
  esac
}

_git_gc ()
{
  case "$cur" in
  --*)
    __gitcomp "--prune --aggressive"
    return
    ;;
  esac
}

_git_gitk ()
{
  _gitk
}

__git_match_ctag() {
  awk "/^${1////\\/}/ { print \$1 }" "$2"
}

_git_grep ()
{
  __git_has_doubledash && return

  case "$cur" in
  --*)
    __gitcomp "
      --cached
      --text --ignore-case --word-regexp --invert-match
      --full-name --line-number
      --extended-regexp --basic-regexp --fixed-strings
      --perl-regexp
      --files-with-matches --name-only
      --files-without-match
      --max-depth
      --count
      --and --or --not --all-match
      "
    return
    ;;
  esac

  case "$cword,$prev" in
  2,*|*,-*)
    if test -r tags; then
      __gitcomp_nl "$(__git_match_ctag "$cur" tags)"
      return
    fi
    ;;
  esac

  __gitcomp_nl "$(__git_refs)"
}

_git_help ()
{
  case "$cur" in
  --*)
    __gitcomp "--all --info --man --web"
    return
    ;;
  esac
  __git_compute_all_commands
  __gitcomp "$__git_all_commands $(__git_aliases)
    attributes cli core-tutorial cvs-migration
    diffcore gitk glossary hooks ignore modules
    namespaces repository-layout tutorial tutorial-2
    workflows
    "
}

_git_init ()
{
  case "$cur" in
  --shared=*)
    __gitcomp "
      false true umask group all world everybody
      " "" "${cur##--shared=}"
    return
    ;;
  --*)
    __gitcomp "--quiet --bare --template= --shared --shared="
    return
    ;;
  esac
}

_git_ls_files ()
{
  case "$cur" in
  --*)
    __gitcomp "--cached --deleted --modified --others --ignored
      --stage --directory --no-empty-directory --unmerged
      --killed --exclude= --exclude-from=
      --exclude-per-directory= --exclude-standard
      --error-unmatch --with-tree= --full-name
      --abbrev --ignored --exclude-per-directory
      "
    return
    ;;
  esac

  # XXX ignore options like --modified and always suggest all cached
  # files.
  __git_complete_index_file "--cached"
}

_git_ls_remote ()
{
  __gitcomp_nl "$(__git_remotes)"
}

_git_ls_tree ()
{
  __git_complete_file
}

# Options that go well for log, shortlog and gitk
__git_log_common_options="
  --not --all
  --branches --tags --remotes
  --first-parent --merges --no-merges
  --max-count=
  --max-age= --since= --after=
  --min-age= --until= --before=
  --min-parents= --max-parents=
  --no-min-parents --no-max-parents
"
# Options that go well for log and gitk (not shortlog)
__git_log_gitk_options="
  --dense --sparse --full-history
  --simplify-merges --simplify-by-decoration
  --left-right --notes --no-notes
"
# Options that go well for log and shortlog (not gitk)
__git_log_shortlog_options="
  --author= --committer= --grep=
  --all-match
"

__git_log_pretty_formats="oneline short medium full fuller email raw format:"
__git_log_date_formats="relative iso8601 rfc2822 short local default raw"

_git_log ()
{
  __git_has_doubledash && return

  local g="$(git rev-parse --git-dir 2>/dev/null)"
  local merge=""
  if [ -f "$g/MERGE_HEAD" ]; then
    merge="--merge"
  fi
  case "$cur" in
  --pretty=*|--format=*)
    __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
      " "" "${cur#*=}"
    return
    ;;
  --date=*)
    __gitcomp "$__git_log_date_formats" "" "${cur##--date=}"
    return
    ;;
  --decorate=*)
    __gitcomp "long short" "" "${cur##--decorate=}"
    return
    ;;
  --*)
    __gitcomp "
      $__git_log_common_options
      $__git_log_shortlog_options
      $__git_log_gitk_options
      --root --topo-order --date-order --reverse
      --follow --full-diff
      --abbrev-commit --abbrev=
      --relative-date --date=
      --pretty= --format= --oneline
      --cherry-pick
      --graph
      --decorate --decorate=
      --walk-reflogs
      --parents --children
      $merge
      $__git_diff_common_options
      --pickaxe-all --pickaxe-regex
      "
    return
    ;;
  esac
  __git_complete_revlist
}

__git_merge_options="
  --no-commit --no-stat --log --no-log --squash --strategy
  --commit --stat --no-squash --ff --no-ff --ff-only --edit --no-edit
"

_git_merge ()
{
  __git_complete_strategy && return

  case "$cur" in
  --*)
    __gitcomp "$__git_merge_options"
    return
  esac
  __gitcomp_nl "$(__git_refs)"
}

_git_mergetool ()
{
  case "$cur" in
  --tool=*)
    __gitcomp "$__git_mergetools_common tortoisemerge" "" "${cur##--tool=}"
    return
    ;;
  --*)
    __gitcomp "--tool="
    return
    ;;
  esac
}

_git_merge_base ()
{
  __gitcomp_nl "$(__git_refs)"
}

_git_mv ()
{
  case "$cur" in
  --*)
    __gitcomp "--dry-run"
    return
    ;;
  esac

  if [ $(__git_count_arguments "mv") -gt 0 ]; then
    # We need to show both cached and untracked files (including
    # empty directories) since this may not be the last argument.
    __git_complete_index_file "--cached --others --directory"
  else
    __git_complete_index_file "--cached"
  fi
}

_git_name_rev ()
{
  __gitcomp "--tags --all --stdin"
}

_git_notes ()
{
  local subcommands='add append copy edit list prune remove show'
  local subcommand="$(__git_find_on_cmdline "$subcommands")"

  case "$subcommand,$cur" in
  ,--*)
    __gitcomp '--ref'
    ;;
  ,*)
    case "$prev" in
    --ref)
      __gitcomp_nl "$(__git_refs)"
      ;;
    *)
      __gitcomp "$subcommands --ref"
      ;;
    esac
    ;;
  add,--reuse-message=*|append,--reuse-message=*|\
  add,--reedit-message=*|append,--reedit-message=*)
    __gitcomp_nl "$(__git_refs)" "" "${cur#*=}"
    ;;
  add,--*|append,--*)
    __gitcomp '--file= --message= --reedit-message=
        --reuse-message='
    ;;
  copy,--*)
    __gitcomp '--stdin'
    ;;
  prune,--*)
    __gitcomp '--dry-run --verbose'
    ;;
  prune,*)
    ;;
  *)
    case "$prev" in
    -m|-F)
      ;;
    *)
      __gitcomp_nl "$(__git_refs)"
      ;;
    esac
    ;;
  esac
}

_git_pull ()
{
  __git_complete_strategy && return

  case "$cur" in
  --*)
    __gitcomp "
      --rebase --no-rebase
      $__git_merge_options
      $__git_fetch_options
    "
    return
    ;;
  esac
  __git_complete_remote_or_refspec
}

_git_push ()
{
  case "$prev" in
  --repo)
    __gitcomp_nl "$(__git_remotes)"
    return
  esac
  case "$cur" in
  --repo=*)
    __gitcomp_nl "$(__git_remotes)" "" "${cur##--repo=}"
    return
    ;;
  --*)
    __gitcomp "
      --all --mirror --tags --dry-run --force --verbose
      --receive-pack= --repo= --set-upstream
    "
    return
    ;;
  esac
  __git_complete_remote_or_refspec
}

_git_rebase ()
{
  local dir="$(__gitdir)"
  if [ -d "$dir"/rebase-apply ] || [ -d "$dir"/rebase-merge ]; then
    __gitcomp "--continue --skip --abort"
    return
  fi
  __git_complete_strategy && return
  case "$cur" in
  --whitespace=*)
    __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
    return
    ;;
  --*)
    __gitcomp "
      --onto --merge --strategy --interactive
      --preserve-merges --stat --no-stat
      --committer-date-is-author-date --ignore-date
      --ignore-whitespace --whitespace=
      --autosquash
      "

    return
  esac
  __gitcomp_nl "$(__git_refs)"
}

_git_reflog ()
{
  local subcommands="show delete expire"
  local subcommand="$(__git_find_on_cmdline "$subcommands")"

  if [ -z "$subcommand" ]; then
    __gitcomp "$subcommands"
  else
    __gitcomp_nl "$(__git_refs)"
  fi
}

__git_send_email_confirm_options="always never auto cc compose"
__git_send_email_suppresscc_options="author self cc bodycc sob cccmd body all"

_git_send_email ()
{
  case "$cur" in
  --confirm=*)
    __gitcomp "
      $__git_send_email_confirm_options
      " "" "${cur##--confirm=}"
    return
    ;;
  --suppress-cc=*)
    __gitcomp "
      $__git_send_email_suppresscc_options
      " "" "${cur##--suppress-cc=}"

    return
    ;;
  --smtp-encryption=*)
    __gitcomp "ssl tls" "" "${cur##--smtp-encryption=}"
    return
    ;;
  --thread=*)
    __gitcomp "
      deep shallow
      " "" "${cur##--thread=}"
    return
    ;;
  --*)
    __gitcomp "--annotate --bcc --cc --cc-cmd --chain-reply-to
      --compose --confirm= --dry-run --envelope-sender
      --from --identity
      --in-reply-to --no-chain-reply-to --no-signed-off-by-cc
      --no-suppress-from --no-thread --quiet
      --signed-off-by-cc --smtp-pass --smtp-server
      --smtp-server-port --smtp-encryption= --smtp-user
      --subject --suppress-cc= --suppress-from --thread --to
      --validate --no-validate
      $__git_format_patch_options"
    return
    ;;
  esac
  __git_complete_revlist
}

_git_stage ()
{
  _git_add
}

__git_config_get_set_variables ()
{
  local prevword word config_file= c=$cword
  while [ $c -gt 1 ]; do
    word="${words[c]}"
    case "$word" in
    --system|--global|--local|--file=*)
      config_file="$word"
      break
      ;;
    -f|--file)
      config_file="$word $prevword"
      break
      ;;
    esac
    prevword=$word
    c=$((--c))
  done

  git --git-dir="$(__gitdir)" config $config_file --list 2>/dev/null |
  while read -r line
  do
    case "$line" in
    *.*=*)
      echo "${line/=*/}"
      ;;
    esac
  done
}

_git_config ()
{
  case "$prev" in
  branch.*.remote|branch.*.pushremote)
    __gitcomp_nl "$(__git_remotes)"
    return
    ;;
  branch.*.merge)
    __gitcomp_nl "$(__git_refs)"
    return
    ;;
  branch.*.rebase)
    __gitcomp "false true"
    return
    ;;
  remote.pushdefault)
    __gitcomp_nl "$(__git_remotes)"
    return
    ;;
  remote.*.fetch)
    local remote="${prev#remote.}"
    remote="${remote%.fetch}"
    if [ -z "$cur" ]; then
      __gitcomp_nl "refs/heads/" "" "" ""
      return
    fi
    __gitcomp_nl "$(__git_refs_remotes "$remote")"
    return
    ;;
  remote.*.push)
    local remote="${prev#remote.}"
    remote="${remote%.push}"
    __gitcomp_nl "$(git --git-dir="$(__gitdir)" \
      for-each-ref --format='%(refname):%(refname)' \
      refs/heads)"
    return
    ;;
  pull.twohead|pull.octopus)
    __git_compute_merge_strategies
    __gitcomp "$__git_merge_strategies"
    return
    ;;
  color.branch|color.diff|color.interactive|\
  color.showbranch|color.status|color.ui)
    __gitcomp "always never auto"
    return
    ;;
  color.pager)
    __gitcomp "false true"
    return
    ;;
  color.*.*)
    __gitcomp "
      normal black red green yellow blue magenta cyan white
      bold dim ul blink reverse
      "
    return
    ;;
  diff.submodule)
    __gitcomp "log short"
    return
    ;;
  help.format)
    __gitcomp "man info web html"
    return
    ;;
  log.date)
    __gitcomp "$__git_log_date_formats"
    return
    ;;
  sendemail.aliasesfiletype)
    __gitcomp "mutt mailrc pine elm gnus"
    return
    ;;
  sendemail.confirm)
    __gitcomp "$__git_send_email_confirm_options"
    return
    ;;
  sendemail.suppresscc)
    __gitcomp "$__git_send_email_suppresscc_options"
    return
    ;;
  --get|--get-all|--unset|--unset-all)
    __gitcomp_nl "$(__git_config_get_set_variables)"
    return
    ;;
  *.*)
    return
    ;;
  esac
  case "$cur" in
  --*)
    __gitcomp "
      --system --global --local --file=
      --list --replace-all
      --get --get-all --get-regexp
      --add --unset --unset-all
      --remove-section --rename-section
      "
    return
    ;;
  branch.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "remote pushremote merge mergeoptions rebase" "$pfx" "$cur_"
    return
    ;;
  branch.*)
    local pfx="${cur%.*}." cur_="${cur#*.}"
    __gitcomp_nl "$(__git_heads)" "$pfx" "$cur_" "."
    return
    ;;
  guitool.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "
      argprompt cmd confirm needsfile noconsole norescan
      prompt revprompt revunmerged title
      " "$pfx" "$cur_"
    return
    ;;
  difftool.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "cmd path" "$pfx" "$cur_"
    return
    ;;
  man.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "cmd path" "$pfx" "$cur_"
    return
    ;;
  mergetool.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "cmd path trustExitCode" "$pfx" "$cur_"
    return
    ;;
  pager.*)
    local pfx="${cur%.*}." cur_="${cur#*.}"
    __git_compute_all_commands
    __gitcomp_nl "$__git_all_commands" "$pfx" "$cur_"
    return
    ;;
  remote.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "
      url proxy fetch push mirror skipDefaultUpdate
      receivepack uploadpack tagopt pushurl
      " "$pfx" "$cur_"
    return
    ;;
  remote.*)
    local pfx="${cur%.*}." cur_="${cur#*.}"
    __gitcomp_nl "$(__git_remotes)" "$pfx" "$cur_" "."
    return
    ;;
  url.*.*)
    local pfx="${cur%.*}." cur_="${cur##*.}"
    __gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_"
    return
    ;;
  esac
  __gitcomp "
    add.ignoreErrors
    advice.commitBeforeMerge
    advice.detachedHead
    advice.implicitIdentity
    advice.pushNonFastForward
    advice.resolveConflict
    advice.statusHints
    alias.
    am.keepcr
    apply.ignorewhitespace
    apply.whitespace
    branch.autosetupmerge
    branch.autosetuprebase
    browser.
    clean.requireForce
    color.branch
    color.branch.current
    color.branch.local
    color.branch.plain
    color.branch.remote
    color.decorate.HEAD
    color.decorate.branch
    color.decorate.remoteBranch
    color.decorate.stash
    color.decorate.tag
    color.diff
    color.diff.commit
    color.diff.frag
    color.diff.func
    color.diff.meta
    color.diff.new
    color.diff.old
    color.diff.plain
    color.diff.whitespace
    color.grep
    color.grep.context
    color.grep.filename
    color.grep.function
    color.grep.linenumber
    color.grep.match
    color.grep.selected
    color.grep.separator
    color.interactive
    color.interactive.error
    color.interactive.header
    color.interactive.help
    color.interactive.prompt
    color.pager
    color.showbranch
    color.status
    color.status.added
    color.status.changed
    color.status.header
    color.status.nobranch
    color.status.untracked
    color.status.updated
    color.ui
    commit.status
    commit.template
    core.abbrev
    core.askpass
    core.attributesfile
    core.autocrlf
    core.bare
    core.bigFileThreshold
    core.compression
    core.createObject
    core.deltaBaseCacheLimit
    core.editor
    core.eol
    core.excludesfile
    core.fileMode
    core.fsyncobjectfiles
    core.gitProxy
    core.ignoreStat
    core.ignorecase
    core.logAllRefUpdates
    core.loosecompression
    core.notesRef
    core.packedGitLimit
    core.packedGitWindowSize
    core.pager
    core.preferSymlinkRefs
    core.preloadindex
    core.quotepath
    core.repositoryFormatVersion
    core.safecrlf
    core.sharedRepository
    core.sparseCheckout
    core.symlinks
    core.trustctime
    core.warnAmbiguousRefs
    core.whitespace
    core.worktree
    diff.autorefreshindex
    diff.external
    diff.ignoreSubmodules
    diff.mnemonicprefix
    diff.noprefix
    diff.renameLimit
    diff.renames
    diff.statGraphWidth
    diff.submodule
    diff.suppressBlankEmpty
    diff.tool
    diff.wordRegex
    diff.algorithm
    difftool.
    difftool.prompt
    fetch.recurseSubmodules
    fetch.unpackLimit
    format.attach
    format.cc
    format.headers
    format.numbered
    format.pretty
    format.signature
    format.signoff
    format.subjectprefix
    format.suffix
    format.thread
    format.to
    gc.
    gc.aggressiveWindow
    gc.auto
    gc.autopacklimit
    gc.packrefs
    gc.pruneexpire
    gc.reflogexpire
    gc.reflogexpireunreachable
    gc.rerereresolved
    gc.rerereunresolved
    gitcvs.allbinary
    gitcvs.commitmsgannotation
    gitcvs.dbTableNamePrefix
    gitcvs.dbdriver
    gitcvs.dbname
    gitcvs.dbpass
    gitcvs.dbuser
    gitcvs.enabled
    gitcvs.logfile
    gitcvs.usecrlfattr
    guitool.
    gui.blamehistoryctx
    gui.commitmsgwidth
    gui.copyblamethreshold
    gui.diffcontext
    gui.encoding
    gui.fastcopyblame
    gui.matchtrackingbranch
    gui.newbranchtemplate
    gui.pruneduringfetch
    gui.spellingdictionary
    gui.trustmtime
    help.autocorrect
    help.browser
    help.format
    http.lowSpeedLimit
    http.lowSpeedTime
    http.maxRequests
    http.minSessions
    http.noEPSV
    http.postBuffer
    http.proxy
    http.sslCAInfo
    http.sslCAPath
    http.sslCert
    http.sslCertPasswordProtected
    http.sslKey
    http.sslVerify
    http.useragent
    i18n.commitEncoding
    i18n.logOutputEncoding
    imap.authMethod
    imap.folder
    imap.host
    imap.pass
    imap.port
    imap.preformattedHTML
    imap.sslverify
    imap.tunnel
    imap.user
    init.templatedir
    instaweb.browser
    instaweb.httpd
    instaweb.local
    instaweb.modulepath
    instaweb.port
    interactive.singlekey
    log.date
    log.decorate
    log.showroot
    mailmap.file
    man.
    man.viewer
    merge.
    merge.conflictstyle
    merge.log
    merge.renameLimit
    merge.renormalize
    merge.stat
    merge.tool
    merge.verbosity
    mergetool.
    mergetool.keepBackup
    mergetool.keepTemporaries
    mergetool.prompt
    notes.displayRef
    notes.rewrite.
    notes.rewrite.amend
    notes.rewrite.rebase
    notes.rewriteMode
    notes.rewriteRef
    pack.compression
    pack.deltaCacheLimit
    pack.deltaCacheSize
    pack.depth
    pack.indexVersion
    pack.packSizeLimit
    pack.threads
    pack.window
    pack.windowMemory
    pager.
    pretty.
    pull.octopus
    pull.twohead
    push.default
    rebase.autosquash
    rebase.stat
    receive.autogc
    receive.denyCurrentBranch
    receive.denyDeleteCurrent
    receive.denyDeletes
    receive.denyNonFastForwards
    receive.fsckObjects
    receive.unpackLimit
    receive.updateserverinfo
    remote.pushdefault
    remotes.
    repack.usedeltabaseoffset
    rerere.autoupdate
    rerere.enabled
    sendemail.
    sendemail.aliasesfile
    sendemail.aliasfiletype
    sendemail.bcc
    sendemail.cc
    sendemail.cccmd
    sendemail.chainreplyto
    sendemail.confirm
    sendemail.envelopesender
    sendemail.from
    sendemail.identity
    sendemail.multiedit
    sendemail.signedoffbycc
    sendemail.smtpdomain
    sendemail.smtpencryption
    sendemail.smtppass
    sendemail.smtpserver
    sendemail.smtpserveroption
    sendemail.smtpserverport
    sendemail.smtpuser
    sendemail.suppresscc
    sendemail.suppressfrom
    sendemail.thread
    sendemail.to
    sendemail.validate
    showbranch.default
    status.relativePaths
    status.showUntrackedFiles
    status.submodulesummary
    submodule.
    tar.umask
    transfer.unpackLimit
    url.
    user.email
    user.name
    user.signingkey
    web.browser
    branch. remote.
  "
}

_git_remote ()
{
  local subcommands="add rename remove set-head set-branches set-url show prune update"
  local subcommand="$(__git_find_on_cmdline "$subcommands")"
  if [ -z "$subcommand" ]; then
    __gitcomp "$subcommands"
    return
  fi

  case "$subcommand" in
  rename|remove|set-url|show|prune)
    __gitcomp_nl "$(__git_remotes)"
    ;;
  set-head|set-branches)
    __git_complete_remote_or_refspec
    ;;
  update)
    local i c='' IFS=$'\n'
    for i in $(git --git-dir="$(__gitdir)" config --get-regexp "remotes\..*" 2>/dev/null); do
      i="${i#remotes.}"
      c="$c ${i/ */}"
    done
    __gitcomp "$c"
    ;;
  *)
    ;;
  esac
}

_git_replace ()
{
  __gitcomp_nl "$(__git_refs)"
}

_git_reset ()
{
  __git_has_doubledash && return

  case "$cur" in
  --*)
    __gitcomp "--merge --mixed --hard --soft --patch"
    return
    ;;
  esac
  __gitcomp_nl "$(__git_refs)"
}

_git_revert ()
{
  case "$cur" in
  --*)
    __gitcomp "--edit --mainline --no-edit --no-commit --signoff"
    return
    ;;
  esac
  __gitcomp_nl "$(__git_refs)"
}

_git_rm ()
{
  case "$cur" in
  --*)
    __gitcomp "--cached --dry-run --ignore-unmatch --quiet"
    return
    ;;
  esac

  __git_complete_index_file "--cached"
}

_git_shortlog ()
{
  __git_has_doubledash && return

  case "$cur" in
  --*)
    __gitcomp "
      $__git_log_common_options
      $__git_log_shortlog_options
      --numbered --summary
      "
    return
    ;;
  esac
  __git_complete_revlist
}

_git_show ()
{
  __git_has_doubledash && return

  case "$cur" in
  --pretty=*|--format=*)
    __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
      " "" "${cur#*=}"
    return
    ;;
  --diff-algorithm=*)
    __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
    return
    ;;
  --*)
    __gitcomp "--pretty= --format= --abbrev-commit --oneline
      $__git_diff_common_options
      "
    return
    ;;
  esac
  __git_complete_revlist_file
}

_git_show_branch ()
{
  case "$cur" in
  --*)
    __gitcomp "
      --all --remotes --topo-order --current --more=
      --list --independent --merge-base --no-name
      --color --no-color
      --sha1-name --sparse --topics --reflog
      "
    return
    ;;
  esac
  __git_complete_revlist
}

_git_stash ()
{
  local save_opts='--keep-index --no-keep-index --quiet --patch'
  local subcommands='save list show apply clear drop pop create branch'
  local subcommand="$(__git_find_on_cmdline "$subcommands")"
  if [ -z "$subcommand" ]; then
    case "$cur" in
    --*)
      __gitcomp "$save_opts"
      ;;
    *)
      if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then
        __gitcomp "$subcommands"
      fi
      ;;
    esac
  else
    case "$subcommand,$cur" in
    save,--*)
      __gitcomp "$save_opts"
      ;;
    apply,--*|pop,--*)
      __gitcomp "--index --quiet"
      ;;
    show,--*|drop,--*|branch,--*)
      ;;
    show,*|apply,*|drop,*|pop,*|branch,*)
      __gitcomp_nl "$(git --git-dir="$(__gitdir)" stash list \
          | sed -n -e 's/:.*//p')"
      ;;
    *)
      ;;
    esac
  fi
}

_git_submodule ()
{
  __git_has_doubledash && return

  local subcommands="add status init deinit update summary foreach sync"
  if [ -z "$(__git_find_on_cmdline "$subcommands")" ]; then
    case "$cur" in
    --*)
      __gitcomp "--quiet --cached"
      ;;
    *)
      __gitcomp "$subcommands"
      ;;
    esac
    return
  fi
}

_git_svn ()
{
  local subcommands="
    init fetch clone rebase dcommit log find-rev
    set-tree commit-diff info create-ignore propget
    proplist show-ignore show-externals branch tag blame
    migrate mkdirs reset gc
    "
  local subcommand="$(__git_find_on_cmdline "$subcommands")"
  if [ -z "$subcommand" ]; then
    __gitcomp "$subcommands"
  else
    local remote_opts="--username= --config-dir= --no-auth-cache"
    local fc_opts="
      --follow-parent --authors-file= --repack=
      --no-metadata --use-svm-props --use-svnsync-props
      --log-window-size= --no-checkout --quiet
      --repack-flags --use-log-author --localtime
      --ignore-paths= --include-paths= $remote_opts
      "
    local init_opts="
      --template= --shared= --trunk= --tags=
      --branches= --stdlayout --minimize-url
      --no-metadata --use-svm-props --use-svnsync-props
      --rewrite-root= --prefix= --use-log-author
      --add-author-from $remote_opts
      "
    local cmt_opts="
      --edit --rmdir --find-copies-harder --copy-similarity=
      "

    case "$subcommand,$cur" in
    fetch,--*)
      __gitcomp "--revision= --fetch-all $fc_opts"
      ;;
    clone,--*)
      __gitcomp "--revision= $fc_opts $init_opts"
      ;;
    init,--*)
      __gitcomp "$init_opts"
      ;;
    dcommit,--*)
      __gitcomp "
        --merge --strategy= --verbose --dry-run
        --fetch-all --no-rebase --commit-url
        --revision --interactive $cmt_opts $fc_opts
        "
      ;;
    set-tree,--*)
      __gitcomp "--stdin $cmt_opts $fc_opts"
      ;;
    create-ignore,--*|propget,--*|proplist,--*|show-ignore,--*|\
    show-externals,--*|mkdirs,--*)
      __gitcomp "--revision="
      ;;
    log,--*)
      __gitcomp "
        --limit= --revision= --verbose --incremental
        --oneline --show-commit --non-recursive
        --authors-file= --color
        "
      ;;
    rebase,--*)
      __gitcomp "
        --merge --verbose --strategy= --local
        --fetch-all --dry-run $fc_opts
        "
      ;;
    commit-diff,--*)
      __gitcomp "--message= --file= --revision= $cmt_opts"
      ;;
    info,--*)
      __gitcomp "--url"
      ;;
    branch,--*)
      __gitcomp "--dry-run --message --tag"
      ;;
    tag,--*)
      __gitcomp "--dry-run --message"
      ;;
    blame,--*)
      __gitcomp "--git-format"
      ;;
    migrate,--*)
      __gitcomp "
        --config-dir= --ignore-paths= --minimize
        --no-auth-cache --username=
        "
      ;;
    reset,--*)
      __gitcomp "--revision= --parent"
      ;;
    *)
      ;;
    esac
  fi
}

_git_tag ()
{
  local i c=1 f=0
  while [ $c -lt $cword ]; do
    i="${words[c]}"
    case "$i" in
    -d|-v)
      __gitcomp_nl "$(__git_tags)"
      return
      ;;
    -f)
      f=1
      ;;
    esac
    ((c++))
  done

  case "$prev" in
  -m|-F)
    ;;
  -*|tag)
    if [ $f = 1 ]; then
      __gitcomp_nl "$(__git_tags)"
    fi
    ;;
  *)
    __gitcomp_nl "$(__git_refs)"
    ;;
  esac
}

_git_whatchanged ()
{
  _git_log
}

__git_main ()
{
  local i c=1 command __git_dir

  while [ $c -lt $cword ]; do
    i="${words[c]}"
    case "$i" in
    --git-dir=*) __git_dir="${i#--git-dir=}" ;;
    --git-dir)   ((c++)) ; __git_dir="${words[c]}" ;;
    --bare)      __git_dir="." ;;
    --help) command="help"; break ;;
    -c|--work-tree|--namespace) ((c++)) ;;
    -*) ;;
    *) command="$i"; break ;;
    esac
    ((c++))
  done

  if [ -z "$command" ]; then
    case "$cur" in
    --*)   __gitcomp "
      --paginate
      --no-pager
      --git-dir=
      --bare
      --version
      --exec-path
      --exec-path=
      --html-path
      --man-path
      --info-path
      --work-tree=
      --namespace=
      --no-replace-objects
      --help
      "
      ;;
    *)     __git_compute_porcelain_commands
           __gitcomp "$__git_porcelain_commands $(__git_aliases)" ;;
    esac
    return
  fi

  local completion_func="_git_${command//-/_}"
  declare -f $completion_func >/dev/null && $completion_func && return

  local expansion=$(__git_aliased_command "$command")
  if [ -n "$expansion" ]; then
    completion_func="_git_${expansion//-/_}"
    declare -f $completion_func >/dev/null && $completion_func
  fi
}

__gitk_main ()
{
  __git_has_doubledash && return

  local g="$(__gitdir)"
  local merge=""
  if [ -f "$g/MERGE_HEAD" ]; then
    merge="--merge"
  fi
  case "$cur" in
  --*)
    __gitcomp "
      $__git_log_common_options
      $__git_log_gitk_options
      $merge
      "
    return
    ;;
  esac
  __git_complete_revlist
}

if [[ -n ${ZSH_VERSION-} ]]; then
  echo "WARNING: this script is deprecated, please see git-completion.zsh" 1>&2

  autoload -U +X compinit && compinit

  __gitcomp ()
  {
    emulate -L zsh

    local cur_="${3-$cur}"

    case "$cur_" in
    --*=)
      ;;
    *)
      local c IFS=$' \t\n'
      local -a array
      for c in ${=1}; do
        c="$c${4-}"
        case $c in
        --*=*|*.) ;;
        *) c="$c " ;;
        esac
        array[$#array+1]="$c"
      done
      compset -P '*[=:]'
      compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
      ;;
    esac
  }

  __gitcomp_nl ()
  {
    emulate -L zsh

    local IFS=$'\n'
    compset -P '*[=:]'
    compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
  }

  __gitcomp_file ()
  {
    emulate -L zsh

    local IFS=$'\n'
    compset -P '*[=:]'
    compadd -Q -p "${2-}" -f -- ${=1} && _ret=0
  }

  _git ()
  {
    local _ret=1 cur cword prev
    cur=${words[CURRENT]}
    prev=${words[CURRENT-1]}
    let cword=CURRENT-1
    emulate ksh -c __${service}_main
    let _ret && _default && _ret=0
    return _ret
  }

  compdef _git git gitk
  return
fi

__git_func_wrap ()
{
  local cur words cword prev
  _get_comp_words_by_ref -n =: cur words cword prev
  $1
}

# Setup completion for certain functions defined above by setting common
# variables and workarounds.
# This is NOT a public function; use at your own risk.
__git_complete ()
{
  local wrapper="__git_wrap${2}"
  eval "$wrapper () { __git_func_wrap $2 ; }"
  complete -o bashdefault -o default -o nospace -F $wrapper $1 2>/dev/null \
    || complete -o default -o nospace -F $wrapper $1
}

# wrapper for backwards compatibility
_git ()
{
  __git_wrap__git_main
}

# wrapper for backwards compatibility
_gitk ()
{
  __git_wrap__gitk_main
}

__git_complete git __git_main
__git_complete gitk __gitk_main

# The following are necessary only for Cygwin, and only are needed
# when the user has tab-completed the executable name and consequently
# included the '.exe' suffix.
#
if [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
__git_complete git.exe __git_main
fi
