t7004: factor out gpg setup
[gitweb.git] / contrib / completion / git-completion.bash
index 803da09a126ad75ad3578a90d117e13cef48ba46..8648a36e7b8239e969dc8971f451431c298e405e 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:
-#        source ~/.git-completion.sh
-#
-#       Or, add the following lines to your .zshrc:
-#        autoload bashcompinit
-#        bashcompinit
+#    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="$COMP_WORDBREAKS:"
@@ -246,6 +246,8 @@ __git_ps1 ()
                                fi
                        elif [ -f "$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
@@ -327,15 +329,172 @@ __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 "$cur_" in
        --*=)
                COMPREPLY=()
                ;;
@@ -343,7 +502,7 @@ __gitcomp ()
                local IFS=$'\n'
                COMPREPLY=($(compgen -P "${2-}" \
                        -W "$(__gitcomp_1 "${1-}" "${4-}")" \
-                       -- "$cur"))
+                       -- "$cur_"))
                ;;
        esac
 }
@@ -392,7 +551,7 @@ __git_tags ()
 __git_refs ()
 {
        local i is_hash=y dir="$(__gitdir "${1-}")" track="${2-}"
-       local cur="${COMP_WORDS[COMP_CWORD]}" format refs
+       local format refs
        if [ -d "$dir" ]; then
                case "$cur" in
                refs|refs/*)
@@ -469,12 +628,12 @@ __git_refs_remotes ()
 __git_remotes ()
 {
        local i ngoff IFS=$'\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*/}"
@@ -504,24 +663,27 @@ __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 "$COMP_WORDBREAKS" in
                *:*) : great ;;
@@ -544,27 +706,17 @@ __git_complete_file ()
                                           s,$,/,
                                       }
                                       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)"
@@ -572,13 +724,23 @@ __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)
@@ -605,40 +767,40 @@ __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" "$cur_"
                fi
                ;;
        esac
@@ -647,12 +809,11 @@ __git_complete_remote_or_refspec ()
 __git_complete_strategy ()
 {
        __git_compute_merge_strategies
-       case "${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=}"
@@ -825,9 +986,8 @@ __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"
@@ -841,8 +1001,8 @@ __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))
@@ -854,7 +1014,7 @@ __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
@@ -878,7 +1038,6 @@ _git_am ()
 
 _git_apply ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --whitespace=*)
                __gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
@@ -901,7 +1060,6 @@ _git_add ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -915,7 +1073,6 @@ _git_add ()
 
 _git_archive ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --format=*)
                __gitcomp "$(git archive --list)" "" "${cur##--format=}"
@@ -965,8 +1122,8 @@ _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 "$i" in
                -d|-m)  only_local_ref="y" ;;
                -r)     has_r="y" ;;
@@ -974,7 +1131,7 @@ _git_branch ()
                c=$((++c))
        done
 
-       case "${COMP_WORDS[COMP_CWORD]}" in
+       case "$cur" in
        --*)
                __gitcomp "
                        --color --no-color --verbose --abbrev= --no-abbrev
@@ -994,8 +1151,8 @@ _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"
                ;;
@@ -1016,7 +1173,6 @@ _git_checkout ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --conflict=*)
                __gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -1046,7 +1202,6 @@ _git_cherry ()
 
 _git_cherry_pick ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--edit --no-commit"
@@ -1061,7 +1216,6 @@ _git_clean ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--dry-run --quiet"
@@ -1073,7 +1227,6 @@ _git_clean ()
 
 _git_clone ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1100,7 +1253,6 @@ _git_commit ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --cleanup=*)
                __gitcomp "default strip verbatim whitespace
@@ -1135,7 +1287,6 @@ _git_commit ()
 
 _git_describe ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1167,7 +1318,6 @@ _git_diff ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
@@ -1177,18 +1327,17 @@ _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=}"
@@ -1213,7 +1362,6 @@ __git_fetch_options="
 
 _git_fetch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "$__git_fetch_options"
@@ -1225,7 +1373,6 @@ _git_fetch ()
 
 _git_format_patch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --thread=*)
                __gitcomp "
@@ -1257,7 +1404,6 @@ _git_format_patch ()
 
 _git_fsck ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1272,7 +1418,6 @@ _git_fsck ()
 
 _git_gc ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--prune --aggressive"
@@ -1291,14 +1436,14 @@ _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
@@ -1314,7 +1459,6 @@ _git_grep ()
 
 _git_help ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--all --info --man --web"
@@ -1322,17 +1466,16 @@ _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 "
@@ -1352,7 +1495,6 @@ _git_ls_files ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --deleted --modified --others --ignored
@@ -1386,12 +1528,14 @@ __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="
@@ -1406,7 +1550,6 @@ _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
@@ -1465,7 +1608,6 @@ _git_merge ()
 {
        __git_complete_strategy && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "$__git_merge_options"
@@ -1476,7 +1618,6 @@ _git_merge ()
 
 _git_mergetool ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --tool=*)
                __gitcomp "$__git_mergetools_common tortoisemerge" "" "${cur##--tool=}"
@@ -1497,7 +1638,6 @@ _git_merge_base ()
 
 _git_mv ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--dry-run"
@@ -1516,14 +1656,13 @@ _git_notes ()
 {
        local subcommands='add append copy edit list prune remove show'
        local subcommand="$(__git_find_on_cmdline "$subcommands")"
-       local cur="${COMP_WORDS[COMP_CWORD]}"
 
        case "$subcommand,$cur" in
        ,--*)
                __gitcomp '--ref'
                ;;
        ,*)
-               case "${COMP_WORDS[COMP_CWORD-1]}" in
+               case "${words[cword-1]}" in
                --ref)
                        __gitcomp "$(__git_refs)"
                        ;;
@@ -1551,7 +1690,7 @@ _git_notes ()
        prune,*)
                ;;
        *)
-               case "${COMP_WORDS[COMP_CWORD-1]}" in
+               case "${words[cword-1]}" in
                -m|-F)
                        ;;
                *)
@@ -1566,7 +1705,6 @@ _git_pull ()
 {
        __git_complete_strategy && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -1582,8 +1720,7 @@ _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
@@ -1606,7 +1743,7 @@ _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
@@ -1648,7 +1785,6 @@ __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 "
@@ -1690,9 +1826,9 @@ _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"
@@ -1720,9 +1856,7 @@ __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 "$(__git_remotes)"
                return
@@ -1732,13 +1866,13 @@ _git_config ()
                return
                ;;
        remote.*.fetch)
-               local remote="${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="$(__gitdir)" \
                        for-each-ref --format='%(refname):%(refname)' \
@@ -1807,70 +1941,60 @@ _git_config ()
                return
                ;;
        branch.*.*)
-               local pfx="${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
@@ -1934,7 +2058,7 @@ _git_config ()
                color.ui
                commit.status
                commit.template
-               core.abbrevguard
+               core.abbrev
                core.askpass
                core.attributesfile
                core.autocrlf
@@ -2191,7 +2315,6 @@ _git_reset ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--merge --mixed --hard --soft --patch"
@@ -2203,7 +2326,6 @@ _git_reset ()
 
 _git_revert ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--edit --mainline --no-edit --no-commit --signoff"
@@ -2217,7 +2339,6 @@ _git_rm ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "--cached --dry-run --ignore-unmatch --quiet"
@@ -2231,7 +2352,6 @@ _git_shortlog ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -2249,7 +2369,6 @@ _git_show ()
 {
        __git_has_doubledash && return
 
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --pretty=*)
                __gitcomp "$__git_log_pretty_formats $(__git_pretty_aliases)
@@ -2273,7 +2392,6 @@ _git_show ()
 
 _git_show_branch ()
 {
-       local cur="${COMP_WORDS[COMP_CWORD]}"
        case "$cur" in
        --*)
                __gitcomp "
@@ -2290,7 +2408,6 @@ _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")"
@@ -2335,7 +2452,6 @@ _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"
@@ -2379,7 +2495,6 @@ _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"
@@ -2451,8 +2566,8 @@ _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)"
@@ -2465,7 +2580,7 @@ _git_tag ()
                c=$((++c))
        done
 
-       case "${COMP_WORDS[COMP_CWORD-1]}" in
+       case "$prev" in
        -m|-F)
                COMPREPLY=()
                ;;
@@ -2494,10 +2609,16 @@ _git ()
        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
 
-       while [ $c -lt $COMP_CWORD ]; do
-               i="${COMP_WORDS[c]}"
+       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="." ;;
@@ -2509,7 +2630,7 @@ _git ()
        done
 
        if [ -z "$command" ]; then
-               case "${COMP_WORDS[COMP_CWORD]}" in
+               case "$cur" in
                --*)   __gitcomp "
                        --paginate
                        --no-pager
@@ -2519,6 +2640,7 @@ _git ()
                        --exec-path
                        --html-path
                        --work-tree=
+                       --namespace=
                        --help
                        "
                        ;;
@@ -2543,11 +2665,17 @@ _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
@@ -2581,7 +2709,7 @@ complete -o bashdefault -o default -o nospace -F _git git.exe 2>/dev/null \
 fi
 
 if [[ -n ${ZSH_VERSION-} ]]; then
-       shopt () {
+       __git_shopt () {
                local option
                if [ $# -ne 2 ]; then
                        echo "USAGE: $0 (-q|-s|-u) <option>" >&2
@@ -2604,4 +2732,8 @@ if [[ -n ${ZSH_VERSION-} ]]; then
                        return 1
                esac
        }
+else
+       __git_shopt () {
+               shopt "$@"
+       }
 fi