.git-completion.sh

#
# bash 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
#    *) common --long-options
#
# To use these routines:
#
#    1) Copy this file to somewhere (e.g. ~/.git-completion.sh).
#    2) Added the following line to your .bashrc:
#        source ~/.git-completion.sh
#
#    3) You may want to make sure the git executable is available
#       in your PATH before this script is sourced, as some caching
#       is performed while the script loads.  If git isn't found
#       at source time then all lookups will be done on demand,
#       which may be slightly slower.
#
#    4) Consider changing your PS1 to also show the current branch:
#        PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
#
#       The argument to __git_ps1 will be displayed only if you
#       are currently in a git repository.  The %s token will be
#       the name of the current branch.
#
# To submit patches:
#
#    *) Read Documentation/SubmittingPatches
#    *) Send all patches to the current maintainer:
#
#       "Shawn O. Pearce" <spearce@spearce.org>
#
#    *) Always CC the Git mailing list:
#
#       git@vger.kernel.org
#

__gitdir ()
{
    if [ -z "$1" ]; then
        if [ -n "$__git_dir" ]; then
            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
}

__git_ps1 ()
{
    local b="$(git symbolic-ref HEAD 2>/dev/null)"
    if [ -n "$b" ]; then
        if [ -n "$1" ]; then
            printf "$1" "${b##refs/heads/}"
        else
            printf " (%s)" "${b##refs/heads/}"
        fi
    fi
}

__gitcomp ()
{
    local all c s=$'\n' IFS=' '$'\t'$'\n'
    local cur="${COMP_WORDS[COMP_CWORD]}"
    if [ $# -gt 2 ]; then
        cur="$3"
    fi
    for c in $1; do
        case "$c$4" in
        --*=*) all="$all$c$4$s" ;;
        *.)    all="$all$c$4$s" ;;
        *)     all="$all$c$4 $s" ;;
        esac
    done
    IFS=$s
    COMPREPLY=($(compgen -P "$2" -W "$all" -- "$cur"))
    return
}

__git_heads ()
{
    local cmd i is_hash=y dir="$(__gitdir "$1")"
    if [ -d "$dir" ]; then
        for i in $(git --git-dir="$dir" \
            for-each-ref --format='%(refname)' \
            refs/heads ); do
            echo "${i#refs/heads/}"
        done
        return
    fi
    for i in $(git-ls-remote "$1" 2>/dev/null); do
        case "$is_hash,$i" in
        y,*) is_hash=n ;;
        n,*^{}) is_hash=y ;;
        n,refs/heads/*) is_hash=y; echo "${i#refs/heads/}" ;;
        n,*) is_hash=y; echo "$i" ;;
        esac
    done
}

__git_tags ()
{
    local cmd i is_hash=y dir="$(__gitdir "$1")"
    if [ -d "$dir" ]; then
        for i in $(git --git-dir="$dir" \
            for-each-ref --format='%(refname)' \
            refs/tags ); do
            echo "${i#refs/tags/}"
        done
        return
    fi
    for i in $(git-ls-remote "$1" 2>/dev/null); do
        case "$is_hash,$i" in
        y,*) is_hash=n ;;
        n,*^{}) is_hash=y ;;
        n,refs/tags/*) is_hash=y; echo "${i#refs/tags/}" ;;
        n,*) is_hash=y; echo "$i" ;;
        esac
    done
}

__git_refs ()
{
    local cmd i is_hash=y dir="$(__gitdir "$1")"
    if [ -d "$dir" ]; then
        if [ -e "$dir/HEAD" ]; then echo HEAD; fi
        for i in $(git --git-dir="$dir" \
            for-each-ref --format='%(refname)' \
            refs/tags refs/heads refs/remotes); do
            case "$i" in
                refs/tags/*)    echo "${i#refs/tags/}" ;;
                refs/heads/*)   echo "${i#refs/heads/}" ;;
                refs/remotes/*) echo "${i#refs/remotes/}" ;;
                *)              echo "$i" ;;
            esac
        done
        return
    fi
    for i in $(git-ls-remote "$dir" 2>/dev/null); do
        case "$is_hash,$i" in
        y,*) is_hash=n ;;
        n,*^{}) is_hash=y ;;
        n,refs/tags/*) is_hash=y; echo "${i#refs/tags/}" ;;
        n,refs/heads/*) is_hash=y; echo "${i#refs/heads/}" ;;
        n,refs/remotes/*) is_hash=y; echo "${i#refs/remotes/}" ;;
        n,*) is_hash=y; echo "$i" ;;
        esac
    done
}

__git_refs2 ()
{
    local i
    for i in $(__git_refs "$1"); do
        echo "$i:$i"
    done
}

__git_refs_remotes ()
{
    local cmd i is_hash=y
    for i in $(git-ls-remote "$1" 2>/dev/null); do
        case "$is_hash,$i" in
        n,refs/heads/*)
            is_hash=y
            echo "$i:refs/remotes/$1/${i#refs/heads/}"
            ;;
        y,*) is_hash=n ;;
        n,*^{}) is_hash=y ;;
        n,refs/tags/*) is_hash=y;;
        n,*) is_hash=y; ;;
        esac
    done
}

__git_remotes ()
{
    local i ngoff IFS=$'\n' d="$(__gitdir)"
    shopt -q nullglob || ngoff=1
    shopt -s nullglob
    for i in "$d/remotes"/*; do
        echo ${i#$d/remotes/}
    done
    [ "$ngoff" ] && shopt -u nullglob
    for i in $(git --git-dir="$d" config --list); do
        case "$i" in
        remote.*.url=*)
            i="${i#remote.}"
            echo "${i/.url=*/}"
            ;;
        esac
    done
}

__git_merge_strategies ()
{
    if [ -n "$__git_merge_strategylist" ]; then
        echo "$__git_merge_strategylist"
        return
    fi
    sed -n "/^all_strategies='/{
        s/^all_strategies='//
        s/'//
        p
        q
        }" "$(git --exec-path)/git-merge"
}
__git_merge_strategylist=
__git_merge_strategylist="$(__git_merge_strategies 2>/dev/null)"

__git_complete_file ()
{
    local pfx ls ref cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    ?*:*)
        ref="${cur%%:*}"
        cur="${cur#*:}"
        case "$cur" in
        ?*/*)
            pfx="${cur%/*}"
            cur="${cur##*/}"
            ls="$ref:$pfx"
            pfx="$pfx/"
            ;;
        *)
            ls="$ref"
            ;;
        esac
        COMPREPLY=($(compgen -P "$pfx" \
            -W "$(git --git-dir="$(__gitdir)" ls-tree "$ls" \
                | sed '/^100... blob /s,^.*    ,,
                       /^040000 tree /{
                           s,^.*    ,,
                           s,$,/,
                       }
                       s/^.*    //')" \
            -- "$cur"))
        ;;
    *)
        __gitcomp "$(__git_refs)"
        ;;
    esac
}

__git_complete_revlist ()
{
    local pfx cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    *...*)
        pfx="${cur%...*}..."
        cur="${cur#*...}"
        __gitcomp "$(__git_refs)" "$pfx" "$cur"
        ;;
    *..*)
        pfx="${cur%..*}.."
        cur="${cur#*..}"
        __gitcomp "$(__git_refs)" "$pfx" "$cur"
        ;;
    *.)
        __gitcomp "$cur."
        ;;
    *)
        __gitcomp "$(__git_refs)"
        ;;
    esac
}

__git_commands ()
{
    if [ -n "$__git_commandlist" ]; then
        echo "$__git_commandlist"
        return
    fi
    local i IFS=" "$'\n'
    for i in $(git help -a|egrep '^ ')
    do
        case $i in
        *--*)             : helper pattern;;
        applymbox)        : ask gittus;;
        applypatch)       : ask gittus;;
        archimport)       : import;;
        cat-file)         : plumbing;;
        check-attr)       : plumbing;;
        check-ref-format) : plumbing;;
        commit-tree)      : plumbing;;
        cvsexportcommit)  : export;;
        cvsimport)        : import;;
        cvsserver)        : daemon;;
        daemon)           : daemon;;
        diff-files)       : plumbing;;
        diff-index)       : plumbing;;
        diff-tree)        : plumbing;;
        fast-import)      : import;;
        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;;
        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;;
        reflog)           : plumbing;;
        repo-config)      : deprecated;;
        rerere)           : plumbing;;
        rev-list)         : plumbing;;
        rev-parse)        : plumbing;;
        runstatus)        : plumbing;;
        sh-setup)         : internal;;
        shell)            : daemon;;
        send-pack)        : plumbing;;
        show-index)       : plumbing;;
        ssh-*)            : transport;;
        stripspace)       : plumbing;;
        svn)              : import export;;
        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;;
        verify-tag)       : plumbing;;
        *) echo $i;;
        esac
    done
}
__git_commandlist=
__git_commandlist="$(__git_commands 2>/dev/null)"

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

__git_aliased_command ()
{
    local word cmdline=$(git --git-dir="$(__gitdir)" \
        config --get "alias.$1")
    for word in $cmdline; do
        if [ "${word##-*}" ]; then
            echo $word
            return
        fi
    done
}

__git_whitespacelist="nowarn warn error error-all strip"

_git_am ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    if [ -d .dotest ]; then
        __gitcomp "--skip --resolved"
        return
    fi
    case "$cur" in
    --whitespace=*)
        __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
        return
        ;;
    --*)
        __gitcomp "
            --signoff --utf8 --binary --3way --interactive
            --whitespace=
            "
        return
    esac
    COMPREPLY=()
}

_git_apply ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$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=
            --whitespace= --inaccurate-eof --verbose
            "
        return
    esac
    COMPREPLY=()
}

_git_add ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--interactive --refresh"
        return
    esac
    COMPREPLY=()
}

_git_bisect ()
{
    local i c=1 command
    while [ $c -lt $COMP_CWORD ]; do
        i="${COMP_WORDS[c]}"
        case "$i" in
        start|bad|good|reset|visualize|replay|log)
            command="$i"
            break
            ;;
        esac
        c=$((++c))
    done

    if [ $c -eq $COMP_CWORD -a -z "$command" ]; then
        __gitcomp "start bad good reset visualize replay log"
        return
    fi

    case "$command" in
    bad|good|reset)
        __gitcomp "$(__git_refs)"
        ;;
    *)
        COMPREPLY=()
        ;;
    esac
}

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

_git_bundle ()
{
    local mycword="$COMP_CWORD"
    case "${COMP_WORDS[0]}" in
    git)
        local cmd="${COMP_WORDS[2]}"
        mycword="$((mycword-1))"
        ;;
    git-bundle*)
        local cmd="${COMP_WORDS[1]}"
        ;;
    esac
    case "$mycword" in
    1)
        __gitcomp "create list-heads verify unbundle"
        ;;
    2)
        # looking for a file
        ;;
    *)
        case "$cmd" in
            create)
                __git_complete_revlist
            ;;
        esac
        ;;
    esac
}

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

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

_git_cherry_pick ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--edit --no-commit"
        ;;
    *)
        __gitcomp "$(__git_refs)"
        ;;
    esac
}

_git_commit ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "
            --all --author= --signoff --verify --no-verify
            --edit --amend --include --only
            "
        return
    esac
    COMPREPLY=()
}

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

_git_diff ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--cached --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 --pickaxe-all --pickaxe-regex
            --text --ignore-space-at-eol --ignore-space-change
            --ignore-all-space --exit-code --quiet --ext-diff
            --no-ext-diff"
        return
        ;;
    esac
    __git_complete_file
}

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

_git_fetch ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"

    case "${COMP_WORDS[0]},$COMP_CWORD" in
    git-fetch*,1)
        __gitcomp "$(__git_remotes)"
        ;;
    git,2)
        __gitcomp "$(__git_remotes)"
        ;;
    *)
        case "$cur" in
        *:*)
            __gitcomp "$(__git_refs)" "" "${cur#*:}"
            ;;
        *)
            local remote
            case "${COMP_WORDS[0]}" in
            git-fetch) remote="${COMP_WORDS[1]}" ;;
            git)       remote="${COMP_WORDS[2]}" ;;
            esac
            __gitcomp "$(__git_refs2 "$remote")"
            ;;
        esac
        ;;
    esac
}

_git_format_patch ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "
            --stdout --attach --thread
            --output-directory
            --numbered --start-number
            --numbered-files
            --keep-subject
            --signoff
            --in-reply-to=
            --full-index --binary
            --not --all
            "
        return
        ;;
    esac
    __git_complete_revlist
}

_git_gc ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--prune --aggressive"
        return
        ;;
    esac
    COMPREPLY=()
}

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

_git_ls_tree ()
{
    __git_complete_file
}

_git_log ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --pretty=*)
        __gitcomp "
            oneline short medium full fuller email raw
            " "" "${cur##--pretty=}"
        return
        ;;
    --date=*)
        __gitcomp "
            relative iso8601 rfc2822 short local default
        " "" "${cur##--date=}"
        return
        ;;
    --*)
        __gitcomp "
            --max-count= --max-age= --since= --after=
            --min-age= --before= --until=
            --root --topo-order --date-order --reverse
            --no-merges --follow
            --abbrev-commit --abbrev=
            --relative-date --date=
            --author= --committer= --grep=
            --all-match
            --pretty= --name-status --name-only --raw
            --not --all
            --left-right --cherry-pick
            "
        return
        ;;
    esac
    __git_complete_revlist
}

_git_merge ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "${COMP_WORDS[COMP_CWORD-1]}" in
    -s|--strategy)
        __gitcomp "$(__git_merge_strategies)"
        return
    esac
    case "$cur" in
    --strategy=*)
        __gitcomp "$(__git_merge_strategies)" "" "${cur##--strategy=}"
        return
        ;;
    --*)
        __gitcomp "
            --no-commit --no-summary --squash --strategy
            "
        return
    esac
    __gitcomp "$(__git_refs)"
}

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

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

_git_pull ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"

    case "${COMP_WORDS[0]},$COMP_CWORD" in
    git-pull*,1)
        __gitcomp "$(__git_remotes)"
        ;;
    git,2)
        __gitcomp "$(__git_remotes)"
        ;;
    *)
        local remote
        case "${COMP_WORDS[0]}" in
        git-pull)  remote="${COMP_WORDS[1]}" ;;
        git)       remote="${COMP_WORDS[2]}" ;;
        esac
        __gitcomp "$(__git_refs "$remote")"
        ;;
    esac
}

_git_push ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"

    case "${COMP_WORDS[0]},$COMP_CWORD" in
    git-push*,1)
        __gitcomp "$(__git_remotes)"
        ;;
    git,2)
        __gitcomp "$(__git_remotes)"
        ;;
    *)
        case "$cur" in
        *:*)
            local remote
            case "${COMP_WORDS[0]}" in
            git-push)  remote="${COMP_WORDS[1]}" ;;
            git)       remote="${COMP_WORDS[2]}" ;;
            esac
            __gitcomp "$(__git_refs "$remote")" "" "${cur#*:}"
            ;;
        +*)
            __gitcomp "$(__git_refs)" + "${cur#+}"
            ;;
        *)
            __gitcomp "$(__git_refs)"
            ;;
        esac
        ;;
    esac
}

_git_rebase ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    if [ -d .dotest ] || [ -d .git/.dotest-merge ]; then
        __gitcomp "--continue --skip --abort"
        return
    fi
    case "${COMP_WORDS[COMP_CWORD-1]}" in
    -s|--strategy)
        __gitcomp "$(__git_merge_strategies)"
        return
    esac
    case "$cur" in
    --strategy=*)
        __gitcomp "$(__git_merge_strategies)" "" "${cur##--strategy=}"
        return
        ;;
    --*)
        __gitcomp "--onto --merge --strategy"
        return
    esac
    __gitcomp "$(__git_refs)"
}

_git_config ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    local prv="${COMP_WORDS[COMP_CWORD-1]}"
    case "$prv" in
    branch.*.remote)
        __gitcomp "$(__git_remotes)"
        return
        ;;
    branch.*.merge)
        __gitcomp "$(__git_refs)"
        return
        ;;
    remote.*.fetch)
        local remote="${prv#remote.}"
        remote="${remote%.fetch}"
        __gitcomp "$(__git_refs_remotes "$remote")"
        return
        ;;
    remote.*.push)
        local remote="${prv#remote.}"
        remote="${remote%.push}"
        __gitcomp "$(git --git-dir="$(__gitdir)" \
            for-each-ref --format='%(refname):%(refname)' \
            refs/heads)"
        return
        ;;
    pull.twohead|pull.octopus)
        __gitcomp "$(__git_merge_strategies)"
        return
        ;;
    color.branch|color.diff|color.status)
        __gitcomp "always never auto"
        return
        ;;
    color.*.*)
        __gitcomp "
            black red green yellow blue magenta cyan white
            bold dim ul blink reverse
            "
        return
        ;;
    *.*)
        COMPREPLY=()
        return
        ;;
    esac
    case "$cur" in
    --*)
        __gitcomp "
            --global --system --file=
            --list --replace-all
            --get --get-all --get-regexp
            --add --unset --unset-all
            --remove-section --rename-section
            "
        return
        ;;
    branch.*.*)
        local pfx="${cur%.*}."
        cur="${cur##*.}"
        __gitcomp "remote merge" "$pfx" "$cur"
        return
        ;;
    branch.*)
        local pfx="${cur%.*}."
        cur="${cur#*.}"
        __gitcomp "$(__git_heads)" "$pfx" "$cur" "."
        return
        ;;
    remote.*.*)
        local pfx="${cur%.*}."
        cur="${cur##*.}"
        __gitcomp "
            url fetch push skipDefaultUpdate
            receivepack uploadpack tagopt
            " "$pfx" "$cur"
        return
        ;;
    remote.*)
        local pfx="${cur%.*}."
        cur="${cur#*.}"
        __gitcomp "$(__git_remotes)" "$pfx" "$cur" "."
        return
        ;;
    esac
    __gitcomp "
        apply.whitespace
        core.fileMode
        core.gitProxy
        core.ignoreStat
        core.preferSymlinkRefs
        core.logAllRefUpdates
        core.loosecompression
        core.repositoryFormatVersion
        core.sharedRepository
        core.warnAmbiguousRefs
        core.compression
        core.legacyHeaders
        core.packedGitWindowSize
        core.packedGitLimit
        clean.requireForce
        color.branch
        color.branch.current
        color.branch.local
        color.branch.remote
        color.branch.plain
        color.diff
        color.diff.plain
        color.diff.meta
        color.diff.frag
        color.diff.old
        color.diff.new
        color.diff.commit
        color.diff.whitespace
        color.pager
        color.status
        color.status.header
        color.status.added
        color.status.changed
        color.status.untracked
        diff.renameLimit
        diff.renames
        fetch.unpackLimit
        format.headers
        format.subjectprefix
        gitcvs.enabled
        gitcvs.logfile
        gitcvs.allbinary
        gitcvs.dbname gitcvs.dbdriver gitcvs.dbuser gitcvs.dvpass
        gc.packrefs
        gc.reflogexpire
        gc.reflogexpireunreachable
        gc.rerereresolved
        gc.rerereunresolved
        http.sslVerify
        http.sslCert
        http.sslKey
        http.sslCAInfo
        http.sslCAPath
        http.maxRequests
        http.lowSpeedLimit
        http.lowSpeedTime
        http.noEPSV
        i18n.commitEncoding
        i18n.logOutputEncoding
        log.showroot
        merge.tool
        merge.summary
        merge.verbosity
        pack.window
        pack.depth
        pack.windowMemory
        pack.compression
        pack.deltaCacheSize
        pack.deltaCacheLimit
        pull.octopus
        pull.twohead
        repack.useDeltaBaseOffset
        show.difftree
        showbranch.default
        tar.umask
        transfer.unpackLimit
        receive.unpackLimit
        receive.denyNonFastForwards
        user.name
        user.email
        user.signingkey
        whatchanged.difftree
        branch. remote.
    "
}

_git_remote ()
{
    local i c=1 command
    while [ $c -lt $COMP_CWORD ]; do
        i="${COMP_WORDS[c]}"
        case "$i" in
        add|rm|show|prune|update) command="$i"; break ;;
        esac
        c=$((++c))
    done

    if [ $c -eq $COMP_CWORD -a -z "$command" ]; then
        __gitcomp "add rm show prune update"
        return
    fi

    case "$command" in
    rm|show|prune)
        __gitcomp "$(__git_remotes)"
        ;;
    update)
        local i c='' IFS=$'\n'
        for i in $(git --git-dir="$(__gitdir)" config --list); do
            case "$i" in
            remotes.*)
                i="${i#remotes.}"
                c="$c ${i/=*/}"
                ;;
            esac
        done
        __gitcomp "$c"
        ;;
    *)
        COMPREPLY=()
        ;;
    esac
}

_git_reset ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--mixed --hard --soft"
        return
        ;;
    esac
    __gitcomp "$(__git_refs)"
}

_git_shortlog ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "
            --max-count= --max-age= --since= --after=
            --min-age= --before= --until=
            --no-merges
            --author= --committer= --grep=
            --all-match
            --not --all
            --numbered --summary
            "
        return
        ;;
    esac
    __git_complete_revlist
}

_git_show ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --pretty=*)
        __gitcomp "
            oneline short medium full fuller email raw
            " "" "${cur##--pretty=}"
        return
        ;;
    --*)
        __gitcomp "--pretty="
        return
        ;;
    esac
    __git_complete_file
}

_git_stash ()
{
    __gitcomp 'list show apply clear'
}

_git_submodule ()
{
    local i c=1 command
    while [ $c -lt $COMP_CWORD ]; do
        i="${COMP_WORDS[c]}"
        case "$i" in
        add|status|init|update) command="$i"; break ;;
        esac
        c=$((++c))
    done

    if [ $c -eq $COMP_CWORD -a -z "$command" ]; then
        local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
            __gitcomp "--quiet --cached"
            ;;
        *)
            __gitcomp "add status init update"
            ;;
        esac
        return
    fi
}

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

    case "${COMP_WORDS[COMP_CWORD-1]}" in
    -m|-F)
        COMPREPLY=()
        ;;
    -*|tag|git-tag)
        if [ $f = 1 ]; then
            __gitcomp "$(__git_tags)"
        else
            COMPREPLY=()
        fi
        ;;
    *)
        __gitcomp "$(__git_refs)"
        ;;
    esac
}

_git ()
{
    local i c=1 command __git_dir

    while [ $c -lt $COMP_CWORD ]; do
        i="${COMP_WORDS[c]}"
        case "$i" in
        --git-dir=*) __git_dir="${i#--git-dir=}" ;;
        --bare)      __git_dir="." ;;
        --version|--help|-p|--paginate) ;;
        *) command="$i"; break ;;
        esac
        c=$((++c))
    done

    if [ $c -eq $COMP_CWORD -a -z "$command" ]; then
        case "${COMP_WORDS[COMP_CWORD]}" in
        --*=*) COMPREPLY=() ;;
        --*)   __gitcomp "
            --no-pager
            --git-dir=
            --bare
            --version
            --exec-path
            "
            ;;
        *)     __gitcomp "$(__git_commands) $(__git_aliases)" ;;
        esac
        return
    fi

    local expansion=$(__git_aliased_command "$command")
    [ "$expansion" ] && command="$expansion"

    case "$command" in
    am)          _git_am ;;
    add)         _git_add ;;
    apply)       _git_apply ;;
    bisect)      _git_bisect ;;
    bundle)      _git_bundle ;;
    branch)      _git_branch ;;
    checkout)    _git_checkout ;;
    cherry)      _git_cherry ;;
    cherry-pick) _git_cherry_pick ;;
    commit)      _git_commit ;;
    config)      _git_config ;;
    describe)    _git_describe ;;
    diff)        _git_diff ;;
    fetch)       _git_fetch ;;
    format-patch) _git_format_patch ;;
    gc)          _git_gc ;;
    log)         _git_log ;;
    ls-remote)   _git_ls_remote ;;
    ls-tree)     _git_ls_tree ;;
    merge)       _git_merge;;
    merge-base)  _git_merge_base ;;
    name-rev)    _git_name_rev ;;
    pull)        _git_pull ;;
    push)        _git_push ;;
    rebase)      _git_rebase ;;
    remote)      _git_remote ;;
    reset)       _git_reset ;;
    shortlog)    _git_shortlog ;;
    show)        _git_show ;;
    show-branch) _git_log ;;
    stash)       _git_stash ;;
    submodule)   _git_submodule ;;
    tag)         _git_tag ;;
    whatchanged) _git_log ;;
    *)           COMPREPLY=() ;;
    esac
}

_gitk ()
{
    local cur="${COMP_WORDS[COMP_CWORD]}"
    case "$cur" in
    --*)
        __gitcomp "--not --all"
        return
        ;;
    esac
    __git_complete_revlist
}

complete -o default -o nospace -F _git git
complete -o default -o nospace -F _gitk gitk
complete -o default -o nospace -F _git_am git-am
complete -o default -o nospace -F _git_apply git-apply
complete -o default -o nospace -F _git_bisect git-bisect
complete -o default -o nospace -F _git_branch git-branch
complete -o default -o nospace -F _git_bundle git-bundle
complete -o default -o nospace -F _git_checkout git-checkout
complete -o default -o nospace -F _git_cherry git-cherry
complete -o default -o nospace -F _git_cherry_pick git-cherry-pick
complete -o default -o nospace -F _git_commit git-commit
complete -o default -o nospace -F _git_describe git-describe
complete -o default -o nospace -F _git_diff git-diff
complete -o default -o nospace -F _git_fetch git-fetch
complete -o default -o nospace -F _git_format_patch git-format-patch
complete -o default -o nospace -F _git_gc git-gc
complete -o default -o nospace -F _git_log git-log
complete -o default -o nospace -F _git_ls_remote git-ls-remote
complete -o default -o nospace -F _git_ls_tree git-ls-tree
complete -o default -o nospace -F _git_merge git-merge
complete -o default -o nospace -F _git_merge_base git-merge-base
complete -o default -o nospace -F _git_name_rev git-name-rev
complete -o default -o nospace -F _git_pull git-pull
complete -o default -o nospace -F _git_push git-push
complete -o default -o nospace -F _git_rebase git-rebase
complete -o default -o nospace -F _git_config git-config
complete -o default -o nospace -F _git_remote git-remote
complete -o default -o nospace -F _git_reset git-reset
complete -o default -o nospace -F _git_shortlog git-shortlog
complete -o default -o nospace -F _git_show git-show
complete -o default -o nospace -F _git_stash git-stash
complete -o default -o nospace -F _git_submodule git-submodule
complete -o default -o nospace -F _git_log git-show-branch
complete -o default -o nospace -F _git_tag git-tag
complete -o default -o nospace -F _git_log git-whatchanged

# 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
complete -o default -o nospace -F _git_add git-add.exe
complete -o default -o nospace -F _git_apply git-apply.exe
complete -o default -o nospace -F _git git.exe
complete -o default -o nospace -F _git_branch git-branch.exe
complete -o default -o nospace -F _git_bundle git-bundle.exe
complete -o default -o nospace -F _git_cherry git-cherry.exe
complete -o default -o nospace -F _git_describe git-describe.exe
complete -o default -o nospace -F _git_diff git-diff.exe
complete -o default -o nospace -F _git_format_patch git-format-patch.exe
complete -o default -o nospace -F _git_log git-log.exe
complete -o default -o nospace -F _git_ls_tree git-ls-tree.exe
complete -o default -o nospace -F _git_merge_base git-merge-base.exe
complete -o default -o nospace -F _git_name_rev git-name-rev.exe
complete -o default -o nospace -F _git_push git-push.exe
complete -o default -o nospace -F _git_config git-config
complete -o default -o nospace -F _git_shortlog git-shortlog.exe
complete -o default -o nospace -F _git_show git-show.exe
complete -o default -o nospace -F _git_log git-show-branch.exe
complete -o default -o nospace -F _git_tag git-tag.exe
complete -o default -o nospace -F _git_log git-whatchanged.exe
fi