Merge branch 'ab/pull-rebase-config'
[gitweb.git] / contrib / completion / git-completion.bash
index d3037fc94eb027e5067b0371da2b33081fd89da5..b7c1edf1cc763199d41a490b212a3b65ea581a86 100755 (executable)
@@ -1,6 +1,6 @@
 #!bash
 #
-# bash completion support for core Git.
+# 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/).
 # To use these routines:
 #
 #    1) Copy this file to somewhere (e.g. ~/.git-completion.sh).
-#    2) Added the following line to your .bashrc:
+#    2) Add the following line to your .bashrc/.zshrc:
 #        source ~/.git-completion.sh
 #
 #    3) Consider changing your PS1 to also show the current branch:
-#        PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
+#         Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
+#         ZSH:  PS1='[%n@%m %c$(__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
 #       git@vger.kernel.org
 #
 
+if [[ -n ${ZSH_VERSION-} ]]; then
+       autoload -U +X bashcompinit && bashcompinit
+fi
+
 case "$COMP_WORDBREAKS" in
 *:*) : great ;;
 *)   COMP_WORDBREAKS="$COMP_WORDBREAKS:"
@@ -105,6 +110,7 @@ __git_ps1_show_upstream ()
        local upstream=git legacy="" verbose=""
 
        # get some config options from git-config
+       local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
        while read key value; do
                case "$key" in
                bash.showupstream)
@@ -120,7 +126,7 @@ __git_ps1_show_upstream ()
                        upstream=svn+git # default upstream is SVN if available, else git
                        ;;
                esac
-       done < <(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')
+       done <<< "$output"
 
        # parse configuration values
        for option in ${GIT_PS1_SHOWUPSTREAM}; do
@@ -138,11 +144,12 @@ __git_ps1_show_upstream ()
                # get the upstream from the "git-svn-id: ..." in a commit message
                # (git-svn uses essentially the same procedure internally)
                local svn_upstream=($(git log --first-parent -1 \
-                                       --grep="^git-svn-id: \(${svn_url_pattern:2}\)" 2>/dev/null))
+                                       --grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
                if [[ 0 -ne ${#svn_upstream[@]} ]]; then
                        svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
                        svn_upstream=${svn_upstream%@*}
-                       for ((n=1; "$n" <= "${#svn_remote[@]}"; ++n)); do
+                       local n_stop="${#svn_remote[@]}"
+                       for ((n=1; n <= n_stop; ++n)); do
                                svn_upstream=${svn_upstream#${svn_remote[$n]}}
                        done
 
@@ -240,6 +247,8 @@ __git_ps1 ()
                                fi
                        elif [ -f "$g/MERGE_HEAD" ]; then
                                r="|MERGING"
+                       elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
+                               r="|CHERRY-PICKING"
                        elif [ -f "$g/BISECT_LOG" ]; then
                                r="|BISECTING"
                        fi
@@ -321,15 +330,172 @@ __gitcomp_1 ()
        done
 }
 
+# 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
+if [[ -z ${ZSH_VERSION:+set} ]]; 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
+}
+else
+_get_comp_words_by_ref ()
+{
+       while [ $# -gt 0 ]; do
+               case "$1" in
+               cur)
+                       cur=${COMP_WORDS[COMP_CWORD]}
+                       ;;
+               prev)
+                       prev=${COMP_WORDS[COMP_CWORD-1]}
+                       ;;
+               words)
+                       words=("${COMP_WORDS[@]}")
+                       ;;
+               cword)
+                       cword=$COMP_CWORD
+                       ;;
+               -n)
+                       # assume COMP_WORDBREAKS is already set sanely
+                       shift
+                       ;;
+               esac
+               shift
+       done
+}
+fi
+fi
+
 # __gitcomp accepts 1, 2, 3, or 4 arguments
 # generates completion reply with compgen
 __gitcomp ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
+       local cur_="$cur"
+
        if [ $# -gt 2 ]; then
-               cur="$3"
+               cur_="$3"
        fi
-       case "$cur" in
+       case "$cur_" in
        --*=)
                COMPREPLY=()
                ;;
@@ -337,7 +503,7 @@ __gitcomp ()
                local IFS=$'\n'
                COMPREPLY=($(compgen -P "${2-}" \
                        -W "$(__gitcomp_1 "${1-}" "${4-}")" \
-                       -- "$cur"))
+                       -- "$cur_"))
                ;;
        esac
 }
@@ -380,16 +546,19 @@ __git_tags ()
        done
 }
 
-# __git_refs accepts 0 or 1 arguments (to pass to __gitdir)
+# __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 is_hash=y dir="$(__gitdir "${1-}")"
-       local cur="${COMP_WORDS[COMP_CWORD]}" format refs
+       local i is_hash=y dir="$(__gitdir "${1-}")" track="${2-}"
+       local format refs
        if [ -d "$dir" ]; then
                case "$cur" in
                refs|refs/*)
                        format="refname"
                        refs="${cur%/*}"
+                       track=""
                        ;;
                *)
                        for i in HEAD FETCH_HEAD ORIG_HEAD MERGE_HEAD; do
@@ -401,6 +570,21 @@ __git_refs ()
                esac
                git --git-dir="$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="$dir" for-each-ref --shell --format="ref=%(refname:short)" \
+                               "refs/remotes/" | \
+                       while read entry; do
+                               eval "$entry"
+                               ref="${ref#*/}"
+                               if [[ "$ref" == "$cur"* ]]; then
+                                       echo "$ref"
+                               fi
+                       done | uniq -u
+               fi
                return
        fi
        for i in $(git ls-remote "$dir" 2>/dev/null); do
@@ -445,12 +629,12 @@ __git_refs_remotes ()
 __git_remotes ()
 {
        local i ngoff IFS=$'\n' d="$(__gitdir)"
-       shopt -q nullglob || ngoff=1
-       shopt -s nullglob
+       __git_shopt -q nullglob || ngoff=1
+       __git_shopt -s nullglob
        for i in "$d/remotes"/*; do
                echo ${i#$d/remotes/}
        done
-       [ "$ngoff" ] && shopt -u nullglob
+       [ "$ngoff" ] && __git_shopt -u nullglob
        for i in $(git --git-dir="$d" config --get-regexp 'remote\..*\.url' 2>/dev/null); do
                i="${i#remote.}"
                echo "${i/.url*/}"
@@ -480,24 +664,27 @@ __git_compute_merge_strategies ()
        : ${__git_merge_strategies:=$(__git_list_merge_strategies)}
 }
 
-__git_complete_file ()
+__git_complete_revlist_file ()
 {
-       local pfx ls ref cur="${COMP_WORDS[COMP_CWORD]}"
-       case "$cur" in
+       local pfx ls ref cur_="$cur"
+       case "$cur_" in
+       *..?*:*)
+               return
+               ;;
        ?*:*)
-               ref="${cur%%:*}"
-               cur="${cur#*:}"
-               case "$cur" in
+               ref="${cur_%%:*}"
+               cur_="${cur_#*:}"
+               case "$cur_" in
                ?*/*)
-                       pfx="${cur%/*}"
-                       cur="${cur##*/}"
+                       pfx="${cur_%/*}"
+                       cur_="${cur_##*/}"
                        ls="$ref:$pfx"
                        pfx="$pfx/"
                        ;;
                *)
                        ls="$ref"
                        ;;
-           esac
+               esac
 
                case "$COMP_WORDBREAKS" in
                *:*) : great ;;
@@ -520,27 +707,17 @@ __git_complete_file ()
                                           s,$,/,
                                       }
                                       s/^.*    //')" \
-                       -- "$cur"))
+                       -- "$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" "$cur_"
                ;;
        *..*)
-               pfx="${cur%..*}.."
-               cur="${cur#*..}"
-               __gitcomp "$(__git_refs)" "$pfx" "$cur"
+               pfx="${cur_%..*}.."
+               cur_="${cur_#*..}"
+               __gitcomp "$(__git_refs)" "$pfx" "$cur_"
                ;;
        *)
                __gitcomp "$(__git_refs)"
@@ -548,13 +725,23 @@ __git_complete_revlist ()
        esac
 }
 
+
+__git_complete_file ()
+{
+       __git_complete_revlist_file
+}
+
+__git_complete_revlist ()
+{
+       __git_complete_revlist_file
+}
+
 __git_complete_remote_or_refspec ()
 {
-       local cmd="${COMP_WORDS[1]}"
-       local cur="${COMP_WORDS[COMP_CWORD]}"
+       local cur_="$cur" cmd="${words[1]}"
        local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
-       while [ $c -lt $COMP_CWORD ]; do
-               i="${COMP_WORDS[c]}"
+       while [ $c -lt $cword ]; do
+               i="${words[c]}"
                case "$i" in
                --mirror) [ "$cmd" = "push" ] && no_complete_refspec=1 ;;
                --all)
@@ -581,40 +768,40 @@ __git_complete_remote_or_refspec ()
                return
        fi
        [ "$remote" = "." ] && remote=
-       case "$cur" in
+       case "$cur_" in
        *:*)
                case "$COMP_WORDBREAKS" in
                *:*) : great ;;
-               *)   pfx="${cur%%:*}:" ;;
+               *)   pfx="${cur_%%:*}:" ;;
                esac
-               cur="${cur#*:}"
+               cur_="${cur_#*:}"
                lhs=0
                ;;
        +*)
                pfx="+"
-               cur="${cur#+}"
+               cur_="${cur_#+}"
                ;;
        esac
        case "$cmd" in
        fetch)
                if [ $lhs = 1 ]; then
-                       __gitcomp "$(__git_refs2 "$remote")" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs2 "$remote")" "$pfx" "$cur_"
                else
-                       __gitcomp "$(__git_refs)" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs)" "$pfx" "$cur_"
                fi
                ;;
        pull)
                if [ $lhs = 1 ]; then
-                       __gitcomp "$(__git_refs "$remote")" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs "$remote")" "$pfx" "$cur_"
                else
-                       __gitcomp "$(__git_refs)" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs)" "$pfx" "$cur_"
                fi
                ;;
        push)
                if [ $lhs = 1 ]; then
-                       __gitcomp "$(__git_refs)" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs)" "$pfx" "$cur_"
                else
-                       __gitcomp "$(__git_refs "$remote")" "$pfx" "$cur"
+                       __gitcomp "$(__git_refs "$remote")" "$pfx" "$cur_"
                fi
                ;;
        esac
@@ -623,12 +810,11 @@ __git_complete_remote_or_refspec ()
 __git_complete_strategy ()
 {
        __git_compute_merge_strategies
-       case "${COMP_WORDS[COMP_CWORD-1]}" in
+       case "$prev" in
        -s|--strategy)
                __gitcomp "$__git_merge_strategies"
                return 0
        esac
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --strategy=*)
                __gitcomp "$__git_merge_strategies" "" "${cur##--strategy=}"
@@ -711,7 +897,6 @@ __git_list_porcelain_commands ()
                quiltimport)      : import;;
                read-tree)        : plumbing;;
                receive-pack)     : plumbing;;
-               reflog)           : plumbing;;
                remote-*)         : transport;;
                repo-config)      : deprecated;;
                rerere)           : plumbing;;
@@ -750,6 +935,19 @@ __git_compute_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'
@@ -789,9 +987,8 @@ __git_aliased_command ()
 __git_find_on_cmdline ()
 {
        local word subcommand c=1
-
-       while [ $c -lt $COMP_CWORD ]; do
-               word="${COMP_WORDS[c]}"
+       while [ $c -lt $cword ]; do
+               word="${words[c]}"
                for subcommand in $1; do
                        if [ "$subcommand" = "$word" ]; then
                                echo "$subcommand"
@@ -805,8 +1002,8 @@ __git_find_on_cmdline ()
 __git_has_doubledash ()
 {
        local c=1
-       while [ $c -lt $COMP_CWORD ]; do
-               if [ "--" = "${COMP_WORDS[c]}" ]; then
+       while [ $c -lt $cword ]; do
+               if [ "--" = "${words[c]}" ]; then
                        return 0
                fi
                c=$((++c))
@@ -818,7 +1015,7 @@ __git_whitespacelist="nowarn warn error error-all fix"
 
 _git_am ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}" dir="$(__gitdir)"
+       local dir="$(__gitdir)"
        if [ -d "$dir"/rebase-apply ]; then
                __gitcomp "--skip --continue --resolved --abort"
                return
@@ -842,7 +1039,6 @@ _git_am ()
 
 _git_apply ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --whitespace=*)
                __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
@@ -865,7 +1061,6 @@ _git_add ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -879,7 +1074,6 @@ _git_add ()
 
 _git_archive ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --format=*)
                __gitcomp "$(git archive --list)" "" "${cur##--format=}"
@@ -907,12 +1101,16 @@ _git_bisect ()
        local subcommands="start bad good skip reset visualize replay log run"
        local subcommand="$(__git_find_on_cmdline "$subcommands")"
        if [ -z "$subcommand" ]; then
-               __gitcomp "$subcommands"
+               if [ -f "$(__gitdir)"/BISECT_START ]; then
+                       __gitcomp "$subcommands"
+               else
+                       __gitcomp "replay start"
+               fi
                return
        fi
 
        case "$subcommand" in
-       bad|good|reset|skip)
+       bad|good|reset|skip|start)
                __gitcomp "$(__git_refs)"
                ;;
        *)
@@ -925,8 +1123,8 @@ _git_branch ()
 {
        local i c=1 only_local_ref="n" has_r="n"
 
-       while [ $c -lt $COMP_CWORD ]; do
-               i="${COMP_WORDS[c]}"
+       while [ $c -lt $cword ]; do
+               i="${words[c]}"
                case "$i" in
                -d|-m)  only_local_ref="y" ;;
                -r)     has_r="y" ;;
@@ -934,7 +1132,7 @@ _git_branch ()
                c=$((++c))
        done
 
-       case "${COMP_WORDS[COMP_CWORD]}" in
+       case "$cur" in
        --*)
                __gitcomp "
                        --color --no-color --verbose --abbrev= --no-abbrev
@@ -954,8 +1152,8 @@ _git_branch ()
 
 _git_bundle ()
 {
-       local cmd="${COMP_WORDS[2]}"
-       case "$COMP_CWORD" in
+       local cmd="${words[2]}"
+       case "$cword" in
        2)
                __gitcomp "create list-heads verify unbundle"
                ;;
@@ -976,7 +1174,6 @@ _git_checkout ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --conflict=*)
                __gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -988,7 +1185,13 @@ _git_checkout ()
                        "
                ;;
        *)
-               __gitcomp "$(__git_refs)"
+               # 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 "$(__git_refs '' $track)"
                ;;
        esac
 }
@@ -1000,7 +1203,6 @@ _git_cherry ()
 
 _git_cherry_pick ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--edit --no-commit"
@@ -1015,7 +1217,6 @@ _git_clean ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--dry-run --quiet"
@@ -1027,7 +1228,6 @@ _git_clean ()
 
 _git_clone ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1054,19 +1254,15 @@ _git_commit ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --cleanup=*)
                __gitcomp "default strip verbatim whitespace
                        " "" "${cur##--cleanup=}"
                return
                ;;
-       --reuse-message=*)
-               __gitcomp "$(__git_refs)" "" "${cur##--reuse-message=}"
-               return
-               ;;
-       --reedit-message=*)
-               __gitcomp "$(__git_refs)" "" "${cur##--reedit-message=}"
+       --reuse-message=*|--reedit-message=*|\
+       --fixup=*|--squash=*)
+               __gitcomp "$(__git_refs)" "" "${cur#*=}"
                return
                ;;
        --untracked-files=*)
@@ -1080,7 +1276,7 @@ _git_commit ()
                        --dry-run --reuse-message= --reedit-message=
                        --reset-author --file= --message= --template=
                        --cleanup= --untracked-files --untracked-files=
-                       --verbose --quiet
+                       --verbose --quiet --fixup= --squash=
                        "
                return
        esac
@@ -1089,7 +1285,6 @@ _git_commit ()
 
 _git_describe ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1121,7 +1316,6 @@ _git_diff ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
@@ -1131,18 +1325,17 @@ _git_diff ()
                return
                ;;
        esac
-       __git_complete_file
+       __git_complete_revlist_file
 }
 
 __git_mergetools_common="diffuse ecmerge emerge kdiff3 meld opendiff
-                       tkdiff vimdiff gvimdiff xxdiff araxis p4merge
+                       tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc3
 "
 
 _git_difftool ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --tool=*)
                __gitcomp "$__git_mergetools_common kompare" "" "${cur##--tool=}"
@@ -1167,7 +1360,6 @@ __git_fetch_options="
 
 _git_fetch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "$__git_fetch_options"
@@ -1179,7 +1371,6 @@ _git_fetch ()
 
 _git_format_patch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --thread=*)
                __gitcomp "
@@ -1211,7 +1402,6 @@ _git_format_patch ()
 
 _git_fsck ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1226,7 +1416,6 @@ _git_fsck ()
 
 _git_gc ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--prune --aggressive"
@@ -1241,18 +1430,22 @@ _git_gitk ()
        _gitk
 }
 
+__git_match_ctag() {
+       awk "/^${1////\\/}/ { print \$1 }" "$2"
+}
+
 _git_grep ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
                        --cached
                        --text --ignore-case --word-regexp --invert-match
-                       --full-name
+                       --full-name --line-number
                        --extended-regexp --basic-regexp --fixed-strings
+                       --perl-regexp
                        --files-with-matches --name-only
                        --files-without-match
                        --max-depth
@@ -1263,12 +1456,20 @@ _git_grep ()
                ;;
        esac
 
+       case "$cword,$prev" in
+       2,*|*,-*)
+               if test -r tags; then
+                       __gitcomp "$(__git_match_ctag "$cur" tags)"
+                       return
+               fi
+               ;;
+       esac
+
        __gitcomp "$(__git_refs)"
 }
 
 _git_help ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--all --info --man --web"
@@ -1276,17 +1477,16 @@ _git_help ()
                ;;
        esac
        __git_compute_all_commands
-       __gitcomp "$__git_all_commands
+       __gitcomp "$__git_all_commands $(__git_aliases)
                attributes cli core-tutorial cvs-migration
                diffcore gitk glossary hooks ignore modules
-               repository-layout tutorial tutorial-2
+               namespaces repository-layout tutorial tutorial-2
                workflows
                "
 }
 
 _git_init ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --shared=*)
                __gitcomp "
@@ -1306,7 +1506,6 @@ _git_ls_files ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --deleted --modified --others --ignored
@@ -1340,12 +1539,14 @@ __git_log_common_options="
        --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
+       --left-right --notes --no-notes
 "
 # Options that go well for log and shortlog (not gitk)
 __git_log_shortlog_options="
@@ -1360,21 +1561,15 @@ _git_log ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        local g="$(git rev-parse --git-dir 2>/dev/null)"
        local merge=""
        if [ -f "$g/MERGE_HEAD" ]; then
                merge="--merge"
        fi
        case "$cur" in
-       --pretty=*)
-               __gitcomp "$__git_log_pretty_formats
-                       " "" "${cur##--pretty=}"
-               return
-               ;;
-       --format=*)
-               __gitcomp "$__git_log_pretty_formats
-                       " "" "${cur##--format=}"
+       --pretty=*|--format=*)
+               __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
+                       " "" "${cur#*=}"
                return
                ;;
        --date=*)
@@ -1419,7 +1614,6 @@ _git_merge ()
 {
        __git_complete_strategy && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "$__git_merge_options"
@@ -1430,7 +1624,6 @@ _git_merge ()
 
 _git_mergetool ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --tool=*)
                __gitcomp "$__git_mergetools_common tortoisemerge" "" "${cur##--tool=}"
@@ -1451,7 +1644,6 @@ _git_merge_base ()
 
 _git_mv ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--dry-run"
@@ -1468,18 +1660,47 @@ _git_name_rev ()
 
 _git_notes ()
 {
-       local subcommands="edit show"
-       if [ -z "$(__git_find_on_cmdline "$subcommands")" ]; then
-               __gitcomp "$subcommands"
-               return
-       fi
+       local subcommands='add append copy edit list prune remove show'
+       local subcommand="$(__git_find_on_cmdline "$subcommands")"
 
-       case "${COMP_WORDS[COMP_CWORD-1]}" in
-       -m|-F)
-               COMPREPLY=()
+       case "$subcommand,$cur" in
+       ,--*)
+               __gitcomp '--ref'
+               ;;
+       ,*)
+               case "${words[cword-1]}" in
+               --ref)
+                       __gitcomp "$(__git_refs)"
+                       ;;
+               *)
+                       __gitcomp "$subcommands --ref"
+                       ;;
+               esac
+               ;;
+       add,--reuse-message=*|append,--reuse-message=*|\
+       add,--reedit-message=*|append,--reedit-message=*)
+               __gitcomp "$(__git_refs)" "" "${cur#*=}"
+               ;;
+       add,--*|append,--*)
+               __gitcomp '--file= --message= --reedit-message=
+                               --reuse-message='
+               ;;
+       copy,--*)
+               __gitcomp '--stdin'
+               ;;
+       prune,--*)
+               __gitcomp '--dry-run --verbose'
+               ;;
+       prune,*)
                ;;
        *)
-               __gitcomp "$(__git_refs)"
+               case "${words[cword-1]}" in
+               -m|-F)
+                       ;;
+               *)
+                       __gitcomp "$(__git_refs)"
+                       ;;
+               esac
                ;;
        esac
 }
@@ -1488,7 +1709,6 @@ _git_pull ()
 {
        __git_complete_strategy && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1504,8 +1724,7 @@ _git_pull ()
 
 _git_push ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
-       case "${COMP_WORDS[COMP_CWORD-1]}" in
+       case "$prev" in
        --repo)
                __gitcomp "$(__git_remotes)"
                return
@@ -1518,7 +1737,7 @@ _git_push ()
        --*)
                __gitcomp "
                        --all --mirror --tags --dry-run --force --verbose
-                       --receive-pack= --repo=
+                       --receive-pack= --repo= --set-upstream
                "
                return
                ;;
@@ -1528,7 +1747,7 @@ _git_push ()
 
 _git_rebase ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}" dir="$(__gitdir)"
+       local dir="$(__gitdir)"
        if [ -d "$dir"/rebase-apply ] || [ -d "$dir"/rebase-merge ]; then
                __gitcomp "--continue --skip --abort"
                return
@@ -1553,12 +1772,23 @@ _git_rebase ()
        __gitcomp "$(__git_refs)"
 }
 
+_git_reflog ()
+{
+       local subcommands="show delete expire"
+       local subcommand="$(__git_find_on_cmdline "$subcommands")"
+
+       if [ -z "$subcommand" ]; then
+               __gitcomp "$subcommands"
+       else
+               __gitcomp "$(__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 ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --confirm=*)
                __gitcomp "
@@ -1600,9 +1830,9 @@ _git_stage ()
 
 __git_config_get_set_variables ()
 {
-       local prevword word config_file= c=$COMP_CWORD
+       local prevword word config_file= c=$cword
        while [ $c -gt 1 ]; do
-               word="${COMP_WORDS[c]}"
+               word="${words[c]}"
                case "$word" in
                --global|--system|--file=*)
                        config_file="$word"
@@ -1630,9 +1860,7 @@ __git_config_get_set_variables ()
 
 _git_config ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
-       local prv="${COMP_WORDS[COMP_CWORD-1]}"
-       case "$prv" in
+       case "$prev" in
        branch.*.remote)
                __gitcomp "$(__git_remotes)"
                return
@@ -1642,13 +1870,13 @@ _git_config ()
                return
                ;;
        remote.*.fetch)
-               local remote="${prv#remote.}"
+               local remote="${prev#remote.}"
                remote="${remote%.fetch}"
                __gitcomp "$(__git_refs_remotes "$remote")"
                return
                ;;
        remote.*.push)
-               local remote="${prv#remote.}"
+               local remote="${prev#remote.}"
                remote="${remote%.push}"
                __gitcomp "$(git --git-dir="$(__gitdir)" \
                        for-each-ref --format='%(refname):%(refname)' \
@@ -1717,98 +1945,108 @@ _git_config ()
                return
                ;;
        branch.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
-               __gitcomp "remote merge mergeoptions rebase" "$pfx" "$cur"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
+               __gitcomp "remote merge mergeoptions rebase" "$pfx" "$cur_"
                return
                ;;
        branch.*)
-               local pfx="${cur%.*}."
-               cur="${cur#*.}"
-               __gitcomp "$(__git_heads)" "$pfx" "$cur" "."
+               local pfx="${cur%.*}." cur_="${cur#*.}"
+               __gitcomp "$(__git_heads)" "$pfx" "$cur_" "."
                return
                ;;
        guitool.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
                __gitcomp "
                        argprompt cmd confirm needsfile noconsole norescan
                        prompt revprompt revunmerged title
-                       " "$pfx" "$cur"
+                       " "$pfx" "$cur_"
                return
                ;;
        difftool.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
-               __gitcomp "cmd path" "$pfx" "$cur"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
+               __gitcomp "cmd path" "$pfx" "$cur_"
                return
                ;;
        man.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
-               __gitcomp "cmd path" "$pfx" "$cur"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
+               __gitcomp "cmd path" "$pfx" "$cur_"
                return
                ;;
        mergetool.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
-               __gitcomp "cmd path trustExitCode" "$pfx" "$cur"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
+               __gitcomp "cmd path trustExitCode" "$pfx" "$cur_"
                return
                ;;
        pager.*)
-               local pfx="${cur%.*}."
-               cur="${cur#*.}"
+               local pfx="${cur%.*}." cur_="${cur#*.}"
                __git_compute_all_commands
-               __gitcomp "$__git_all_commands" "$pfx" "$cur"
+               __gitcomp "$__git_all_commands" "$pfx" "$cur_"
                return
                ;;
        remote.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
                __gitcomp "
                        url proxy fetch push mirror skipDefaultUpdate
                        receivepack uploadpack tagopt pushurl
-                       " "$pfx" "$cur"
+                       " "$pfx" "$cur_"
                return
                ;;
        remote.*)
-               local pfx="${cur%.*}."
-               cur="${cur#*.}"
-               __gitcomp "$(__git_remotes)" "$pfx" "$cur" "."
+               local pfx="${cur%.*}." cur_="${cur#*.}"
+               __gitcomp "$(__git_remotes)" "$pfx" "$cur_" "."
                return
                ;;
        url.*.*)
-               local pfx="${cur%.*}."
-               cur="${cur##*.}"
-               __gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur"
+               local pfx="${cur%.*}." cur_="${cur##*.}"
+               __gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_"
                return
                ;;
        esac
        __gitcomp "
-               add.ignore-errors
+               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.external
+               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
@@ -1822,21 +2060,29 @@ _git_config ()
                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.ignoreCygwinFSTricks
                core.ignoreStat
+               core.ignorecase
                core.logAllRefUpdates
                core.loosecompression
+               core.notesRef
                core.packedGitLimit
                core.packedGitWindowSize
                core.pager
@@ -1846,6 +2092,7 @@ _git_config ()
                core.repositoryFormatVersion
                core.safecrlf
                core.sharedRepository
+               core.sparseCheckout
                core.symlinks
                core.trustctime
                core.warnAmbiguousRefs
@@ -1853,15 +2100,17 @@ _git_config ()
                core.worktree
                diff.autorefreshindex
                diff.external
+               diff.ignoreSubmodules
                diff.mnemonicprefix
+               diff.noprefix
                diff.renameLimit
-               diff.renameLimit.
                diff.renames
                diff.suppressBlankEmpty
                diff.tool
                diff.wordRegex
                difftool.
                difftool.prompt
+               fetch.recurseSubmodules
                fetch.unpackLimit
                format.attach
                format.cc
@@ -1873,6 +2122,8 @@ _git_config ()
                format.subjectprefix
                format.suffix
                format.thread
+               format.to
+               gc.
                gc.aggressiveWindow
                gc.auto
                gc.autopacklimit
@@ -1910,15 +2161,20 @@ _git_config ()
                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
@@ -1927,6 +2183,7 @@ _git_config ()
                imap.sslverify
                imap.tunnel
                imap.user
+               init.templatedir
                instaweb.browser
                instaweb.httpd
                instaweb.local
@@ -1934,19 +2191,29 @@ _git_config ()
                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
@@ -1957,31 +2224,42 @@ _git_config ()
                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
+               remotes.
                repack.usedeltabaseoffset
                rerere.autoupdate
                rerere.enabled
+               sendemail.
                sendemail.aliasesfile
-               sendemail.aliasesfiletype
+               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
@@ -1992,6 +2270,8 @@ _git_config ()
                showbranch.default
                status.relativePaths
                status.showUntrackedFiles
+               status.submodulesummary
+               submodule.
                tar.umask
                transfer.unpackLimit
                url.
@@ -2039,7 +2319,6 @@ _git_reset ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--merge --mixed --hard --soft --patch"
@@ -2051,7 +2330,6 @@ _git_reset ()
 
 _git_revert ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--edit --mainline --no-edit --no-commit --signoff"
@@ -2065,7 +2343,6 @@ _git_rm ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --dry-run --ignore-unmatch --quiet"
@@ -2079,7 +2356,6 @@ _git_shortlog ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -2097,16 +2373,10 @@ _git_show ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
-       --pretty=*)
-               __gitcomp "$__git_log_pretty_formats
-                       " "" "${cur##--pretty=}"
-               return
-               ;;
-       --format=*)
-               __gitcomp "$__git_log_pretty_formats
-                       " "" "${cur##--format=}"
+       --pretty=*|--format=*)
+               __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
+                       " "" "${cur#*=}"
                return
                ;;
        --*)
@@ -2121,7 +2391,6 @@ _git_show ()
 
 _git_show_branch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -2138,7 +2407,6 @@ _git_show_branch ()
 
 _git_stash ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        local save_opts='--keep-index --no-keep-index --quiet --patch'
        local subcommands='save list show apply clear drop pop create branch'
        local subcommand="$(__git_find_on_cmdline "$subcommands")"
@@ -2183,7 +2451,6 @@ _git_submodule ()
 
        local subcommands="add status init update summary foreach sync"
        if [ -z "$(__git_find_on_cmdline "$subcommands")" ]; then
-               local cur="${COMP_WORDS[COMP_CWORD]}"
                case "$cur" in
                --*)
                        __gitcomp "--quiet --cached"
@@ -2227,7 +2494,6 @@ _git_svn ()
                        --edit --rmdir --find-copies-harder --copy-similarity=
                        "
 
-               local cur="${COMP_WORDS[COMP_CWORD]}"
                case "$subcommand,$cur" in
                fetch,--*)
                        __gitcomp "--revision= --fetch-all $fc_opts"
@@ -2299,8 +2565,8 @@ _git_svn ()
 _git_tag ()
 {
        local i c=1 f=0
-       while [ $c -lt $COMP_CWORD ]; do
-               i="${COMP_WORDS[c]}"
+       while [ $c -lt $cword ]; do
+               i="${words[c]}"
                case "$i" in
                -d|-v)
                        __gitcomp "$(__git_tags)"
@@ -2313,7 +2579,7 @@ _git_tag ()
                c=$((++c))
        done
 
-       case "${COMP_WORDS[COMP_CWORD-1]}" in
+       case "$prev" in
        -m|-F)
                COMPREPLY=()
                ;;
@@ -2339,8 +2605,19 @@ _git ()
 {
        local i c=1 command __git_dir
 
-       while [ $c -lt $COMP_CWORD ]; do
-               i="${COMP_WORDS[c]}"
+       if [[ -n ${ZSH_VERSION-} ]]; then
+               emulate -L bash
+               setopt KSH_TYPESET
+
+               # workaround zsh's bug that leaves 'words' as a special
+               # variable in versions < 4.3.12
+               typeset -h words
+       fi
+
+       local cur words cword prev
+       _get_comp_words_by_ref -n =: cur words cword prev
+       while [ $c -lt $cword ]; do
+               i="${words[c]}"
                case "$i" in
                --git-dir=*) __git_dir="${i#--git-dir=}" ;;
                --bare)      __git_dir="." ;;
@@ -2352,7 +2629,7 @@ _git ()
        done
 
        if [ -z "$command" ]; then
-               case "${COMP_WORDS[COMP_CWORD]}" in
+               case "$cur" in
                --*)   __gitcomp "
                        --paginate
                        --no-pager
@@ -2362,6 +2639,7 @@ _git ()
                        --exec-path
                        --html-path
                        --work-tree=
+                       --namespace=
                        --help
                        "
                        ;;
@@ -2372,20 +2650,31 @@ _git ()
        fi
 
        local completion_func="_git_${command//-/_}"
-       declare -F $completion_func >/dev/null && $completion_func && return
+       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
+               declare -f $completion_func >/dev/null && $completion_func
        fi
 }
 
 _gitk ()
 {
+       if [[ -n ${ZSH_VERSION-} ]]; then
+               emulate -L bash
+               setopt KSH_TYPESET
+
+               # workaround zsh's bug that leaves 'words' as a special
+               # variable in versions < 4.3.12
+               typeset -h words
+       fi
+
+       local cur words cword prev
+       _get_comp_words_by_ref -n =: cur words cword prev
+
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        local g="$(__gitdir)"
        local merge=""
        if [ -f "$g/MERGE_HEAD" ]; then
@@ -2417,3 +2706,33 @@ if [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
 complete -o bashdefault -o default -o nospace -F _git git.exe 2>/dev/null \
        || complete -o default -o nospace -F _git git.exe
 fi
+
+if [[ -n ${ZSH_VERSION-} ]]; then
+       __git_shopt () {
+               local option
+               if [ $# -ne 2 ]; then
+                       echo "USAGE: $0 (-q|-s|-u) <option>" >&2
+                       return 1
+               fi
+               case "$2" in
+               nullglob)
+                       option="$2"
+                       ;;
+               *)
+                       echo "$0: invalid option: $2" >&2
+                       return 1
+               esac
+               case "$1" in
+               -q)     setopt | grep -q "$option" ;;
+               -u)     unsetopt "$option" ;;
+               -s)     setopt "$option" ;;
+               *)
+                       echo "$0: invalid flag: $1" >&2
+                       return 1
+               esac
+       }
+else
+       __git_shopt () {
+               shopt "$@"
+       }
+fi