ewah: support platforms that require aligned reads
[gitweb.git] / contrib / completion / git-completion.bash
old mode 100755 (executable)
new mode 100644 (file)
index 1689f99..dba3c15
@@ -13,6 +13,7 @@
 #    *) .git/remotes file names
 #    *) git 'subcommands'
 #    *) tree paths within 'ref:path/to/file' expressions
+#    *) file paths within current working directory and index
 #    *) common --long-options
 #
 # To use these routines:
 #    1) Copy this file to somewhere (e.g. ~/.git-completion.sh).
 #    2) Add the following line to your .bashrc/.zshrc:
 #        source ~/.git-completion.sh
-#
-#    3) Consider changing your PS1 to also show the current branch:
-#         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
-#       the name of the current branch.
-#
-#       In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty
-#       value, unstaged (*) and staged (+) changes will be shown next
-#       to the branch name.  You can configure this per-repository
-#       with the bash.showDirtyState variable, which defaults to true
-#       once GIT_PS1_SHOWDIRTYSTATE is enabled.
-#
-#       You can also see if currently something is stashed, by setting
-#       GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed,
-#       then a '$' will be shown next to the branch name.
-#
-#       If you would like to see if there're untracked files, then you can
-#       set GIT_PS1_SHOWUNTRACKEDFILES to a nonempty value. If there're
-#       untracked files, then a '%' will be shown next to the branch name.
-#
-#       If you would like to see the difference between HEAD and its
-#       upstream, set GIT_PS1_SHOWUPSTREAM="auto".  A "<" indicates
-#       you are behind, ">" indicates you are ahead, and "<>"
-#       indicates you have diverged.  You can further control
-#       behaviour by setting GIT_PS1_SHOWUPSTREAM to a space-separated
-#       list of values:
-#           verbose       show number of commits ahead/behind (+/-) upstream
-#           legacy        don't use the '--count' option available in recent
-#                         versions of git-rev-list
-#           git           always compare HEAD to @{upstream}
-#           svn           always compare HEAD to your SVN upstream
-#       By default, __git_ps1 will compare HEAD to your SVN upstream
-#       if it can find one, or @{upstream} otherwise.  Once you have
-#       set GIT_PS1_SHOWUPSTREAM, you can override it on a
-#       per-repository basis by setting the bash.showUpstream config
-#       variable.
-#
-
-if [[ -n ${ZSH_VERSION-} ]]; then
-       autoload -U +X bashcompinit && bashcompinit
-fi
+#    3) Consider changing your PS1 to also show the current branch,
+#       see git-prompt.sh for details.
 
 case "$COMP_WORDBREAKS" in
 *:*) : great ;;
@@ -77,6 +36,9 @@ __gitdir ()
        if [ -z "${1-}" ]; then
                if [ -n "${__git_dir-}" ]; then
                        echo "$__git_dir"
+               elif [ -n "${GIT_DIR-}" ]; then
+                       test -d "${GIT_DIR-}" || return 1
+                       echo "$GIT_DIR"
                elif [ -d .git ]; then
                        echo .git
                else
@@ -89,234 +51,6 @@ __gitdir ()
        fi
 }
 
-# stores the divergence from upstream in $p
-# used by GIT_PS1_SHOWUPSTREAM
-__git_ps1_show_upstream ()
-{
-       local key value
-       local svn_remote svn_url_pattern count n
-       local upstream=git legacy="" verbose=""
-
-       svn_remote=()
-       # get some config options from git-config
-       local output="$(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ')"
-       while read -r key value; do
-               case "$key" in
-               bash.showupstream)
-                       GIT_PS1_SHOWUPSTREAM="$value"
-                       if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then
-                               p=""
-                               return
-                       fi
-                       ;;
-               svn-remote.*.url)
-                       svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
-                       svn_url_pattern+="\\|$value"
-                       upstream=svn+git # default upstream is SVN if available, else git
-                       ;;
-               esac
-       done <<< "$output"
-
-       # parse configuration values
-       for option in ${GIT_PS1_SHOWUPSTREAM}; do
-               case "$option" in
-               git|svn) upstream="$option" ;;
-               verbose) verbose=1 ;;
-               legacy)  legacy=1  ;;
-               esac
-       done
-
-       # Find our upstream
-       case "$upstream" in
-       git)    upstream="@{upstream}" ;;
-       svn*)
-               # 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>/dev/null))
-               if [[ 0 -ne ${#svn_upstream[@]} ]]; then
-                       svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
-                       svn_upstream=${svn_upstream%@*}
-                       local n_stop="${#svn_remote[@]}"
-                       for ((n=1; n <= n_stop; n++)); do
-                               svn_upstream=${svn_upstream#${svn_remote[$n]}}
-                       done
-
-                       if [[ -z "$svn_upstream" ]]; then
-                               # default branch name for checkouts with no layout:
-                               upstream=${GIT_SVN_ID:-git-svn}
-                       else
-                               upstream=${svn_upstream#/}
-                       fi
-               elif [[ "svn+git" = "$upstream" ]]; then
-                       upstream="@{upstream}"
-               fi
-               ;;
-       esac
-
-       # Find how many commits we are ahead/behind our upstream
-       if [[ -z "$legacy" ]]; then
-               count="$(git rev-list --count --left-right \
-                               "$upstream"...HEAD 2>/dev/null)"
-       else
-               # produce equivalent output to --count for older versions of git
-               local commits
-               if commits="$(git rev-list --left-right "$upstream"...HEAD 2>/dev/null)"
-               then
-                       local commit behind=0 ahead=0
-                       for commit in $commits
-                       do
-                               case "$commit" in
-                               "<"*) ((behind++)) ;;
-                               *)    ((ahead++))  ;;
-                               esac
-                       done
-                       count="$behind  $ahead"
-               else
-                       count=""
-               fi
-       fi
-
-       # calculate the result
-       if [[ -z "$verbose" ]]; then
-               case "$count" in
-               "") # no upstream
-                       p="" ;;
-               "0      0") # equal to upstream
-                       p="=" ;;
-               "0      "*) # ahead of upstream
-                       p=">" ;;
-               *"      0") # behind upstream
-                       p="<" ;;
-               *)          # diverged from upstream
-                       p="<>" ;;
-               esac
-       else
-               case "$count" in
-               "") # no upstream
-                       p="" ;;
-               "0      0") # equal to upstream
-                       p=" u=" ;;
-               "0      "*) # ahead of upstream
-                       p=" u+${count#0 }" ;;
-               *"      0") # behind upstream
-                       p=" u-${count%  0}" ;;
-               *)          # diverged from upstream
-                       p=" u+${count#* }-${count%      *}" ;;
-               esac
-       fi
-
-}
-
-
-# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
-# returns text to add to bash PS1 prompt (includes branch name)
-__git_ps1 ()
-{
-       local g="$(__gitdir)"
-       if [ -n "$g" ]; then
-               local r=""
-               local b=""
-               if [ -f "$g/rebase-merge/interactive" ]; then
-                       r="|REBASE-i"
-                       b="$(cat "$g/rebase-merge/head-name")"
-               elif [ -d "$g/rebase-merge" ]; then
-                       r="|REBASE-m"
-                       b="$(cat "$g/rebase-merge/head-name")"
-               else
-                       if [ -d "$g/rebase-apply" ]; then
-                               if [ -f "$g/rebase-apply/rebasing" ]; then
-                                       r="|REBASE"
-                               elif [ -f "$g/rebase-apply/applying" ]; then
-                                       r="|AM"
-                               else
-                                       r="|AM/REBASE"
-                               fi
-                       elif [ -f "$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
-
-                       b="$(git symbolic-ref HEAD 2>/dev/null)" || {
-
-                               b="$(
-                               case "${GIT_PS1_DESCRIBE_STYLE-}" in
-                               (contains)
-                                       git describe --contains HEAD ;;
-                               (branch)
-                                       git describe --contains --all HEAD ;;
-                               (describe)
-                                       git describe HEAD ;;
-                               (* | default)
-                                       git describe --tags --exact-match HEAD ;;
-                               esac 2>/dev/null)" ||
-
-                               b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
-                               b="unknown"
-                               b="($b)"
-                       }
-               fi
-
-               local w=""
-               local i=""
-               local s=""
-               local u=""
-               local c=""
-               local p=""
-
-               if [ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]; then
-                       if [ "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]; then
-                               c="BARE:"
-                       else
-                               b="GIT_DIR!"
-                       fi
-               elif [ "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then
-                       if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ]; then
-                               if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
-                                       git diff --no-ext-diff --quiet --exit-code || w="*"
-                                       if git rev-parse --quiet --verify HEAD >/dev/null; then
-                                               git diff-index --cached --quiet HEAD -- || i="+"
-                                       else
-                                               i="#"
-                                       fi
-                               fi
-                       fi
-                       if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
-                               git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
-                       fi
-
-                       if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then
-                               if [ -n "$(git ls-files --others --exclude-standard)" ]; then
-                                       u="%"
-                               fi
-                       fi
-
-                       if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
-                               __git_ps1_show_upstream
-                       fi
-               fi
-
-               local f="$w$i$s$u"
-               printf -- "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p"
-       fi
-}
-
-__gitcomp_1 ()
-{
-       local c IFS=$' \t\n'
-       for c in $1; do
-               c="$c$2"
-               case $c in
-               --*=*|*.) ;;
-               *) c="$c " ;;
-               esac
-               printf '%s\n' "$c"
-       done
-}
-
 # The following function is based on code from:
 #
 #   bash_completion - programmable completion functions for bash 3.2+
@@ -417,7 +151,6 @@ __git_reassemble_comp_words_by_ref()
 }
 
 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_
@@ -445,36 +178,20 @@ _get_comp_words_by_ref ()
                shift
        done
 }
-else
-_get_comp_words_by_ref ()
+fi
+
+__gitcompadd ()
 {
-       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
+       local i=0
+       for x in $1; do
+               if [[ "$x" == "$3"* ]]; then
+                       COMPREPLY[i++]="$2$x$4"
+               fi
        done
 }
-fi
-fi
 
-# Generates completion reply with compgen, appending a space to possible
-# completion words, if necessary.
+# Generates completion reply, appending a space to possible completion words,
+# if necessary.
 # It accepts 1 to 4 arguments:
 # 1: List of possible completion words.
 # 2: A prefix to be added to each possible completion word (optional).
@@ -486,19 +203,25 @@ __gitcomp ()
 
        case "$cur_" in
        --*=)
-               COMPREPLY=()
                ;;
        *)
-               local IFS=$'\n'
-               COMPREPLY=($(compgen -P "${2-}" \
-                       -W "$(__gitcomp_1 "${1-}" "${4-}")" \
-                       -- "$cur_"))
+               local c i=0 IFS=$' \t\n'
+               for c in $1; do
+                       c="$c${4-}"
+                       if [[ $c == "$cur_"* ]]; then
+                               case $c in
+                               --*=*|*.) ;;
+                               *) c="$c " ;;
+                               esac
+                               COMPREPLY[i++]="${2-}$c"
+                       fi
+               done
                ;;
        esac
 }
 
-# Generates completion reply with compgen from newline-separated possible
-# completion words by appending a space to all of them.
+# Generates completion reply from newline-separated possible completion words
+# by appending a space to all of them.
 # It accepts 1 to 4 arguments:
 # 1: List of possible completion words, separated by a single newline.
 # 2: A prefix to be added to each possible completion word (optional).
@@ -509,7 +232,69 @@ __gitcomp ()
 __gitcomp_nl ()
 {
        local IFS=$'\n'
-       COMPREPLY=($(compgen -P "${2-}" -S "${4- }" -W "$1" -- "${3-$cur}"))
+       __gitcompadd "$1" "${2-}" "${3-$cur}" "${4- }"
+}
+
+# Generates completion reply with compgen from newline-separated possible
+# completion filenames.
+# It accepts 1 to 3 arguments:
+# 1: List of possible completion filenames, separated by a single newline.
+# 2: A directory prefix to be added to each possible completion filename
+#    (optional).
+# 3: Generate possible completion matches for this word (optional).
+__gitcomp_file ()
+{
+       local IFS=$'\n'
+
+       # XXX does not work when the directory prefix contains a tilde,
+       # since tilde expansion is not applied.
+       # This means that COMPREPLY will be empty and Bash default
+       # completion will be used.
+       __gitcompadd "$1" "${2-}" "${3-$cur}" ""
+
+       # use a hack to enable file mode in bash < 4
+       compopt -o filenames +o nospace 2>/dev/null ||
+       compgen -f /non-existing-dir/ > /dev/null
+}
+
+# Execute 'git ls-files', unless the --committable option is specified, in
+# which case it runs 'git diff-index' to find out the files that can be
+# committed.  It return paths relative to the directory specified in the first
+# argument, and using the options specified in the second argument.
+__git_ls_files_helper ()
+{
+       (
+               test -n "${CDPATH+set}" && unset CDPATH
+               cd "$1"
+               if [ "$2" == "--committable" ]; then
+                       git diff-index --name-only --relative HEAD
+               else
+                       # NOTE: $2 is not quoted in order to support multiple options
+                       git ls-files --exclude-standard $2
+               fi
+       ) 2>/dev/null
+}
+
+
+# __git_index_files accepts 1 or 2 arguments:
+# 1: Options to pass to ls-files (required).
+# 2: A directory path (optional).
+#    If provided, only files within the specified directory are listed.
+#    Sub directories are never recursed.  Path must have a trailing
+#    slash.
+__git_index_files ()
+{
+       local dir="$(__gitdir)" root="${2-.}" file
+
+       if [ -d "$dir" ]; then
+               __git_ls_files_helper "$root" "$1" |
+               while read -r file; do
+                       case "$file" in
+                       ?*/*) echo "${file%%/*}" ;;
+                       *) echo "$file" ;;
+                       esac
+               done | sort | uniq
+       fi
 }
 
 __git_heads ()
@@ -569,7 +354,7 @@ __git_refs ()
                                if [[ "$ref" == "$cur"* ]]; then
                                        echo "$ref"
                                fi
-                       done | uniq -u
+                       done | sort | uniq -u
                fi
                return
        fi
@@ -584,14 +369,8 @@ __git_refs ()
                done
                ;;
        *)
-               git ls-remote "$dir" HEAD ORIG_HEAD 'refs/tags/*' 'refs/heads/*' 'refs/remotes/*' 2>/dev/null | \
-               while read -r hash i; do
-                       case "$i" in
-                       *^{}) ;;
-                       refs/*) echo "${i#refs/*/}" ;;
-                       *) echo "$i" ;;
-                       esac
-               done
+               echo "HEAD"
+               git for-each-ref --format="%(refname:short)" -- "refs/remotes/$dir/" | sed -e "s#^$dir/##"
                ;;
        esac
 }
@@ -676,7 +455,7 @@ __git_complete_revlist_file ()
                *)   pfx="$ref:$pfx" ;;
                esac
 
-               __gitcomp_nl "$(git --git-dir="$(__gitdir)" ls-tree "$ls" \
+               __gitcomp_nl "$(git --git-dir="$(__gitdir)" ls-tree "$ls" 2>/dev/null \
                                | sed '/^100... blob /{
                                           s,^.*        ,,
                                           s,$, ,
@@ -709,6 +488,25 @@ __git_complete_revlist_file ()
 }
 
 
+# __git_complete_index_file requires 1 argument:
+# 1: the options to pass to ls-file
+#
+# The exception is --committable, which finds the files appropriate commit.
+__git_complete_index_file ()
+{
+       local pfx="" cur_="$cur"
+
+       case "$cur_" in
+       ?*/*)
+               pfx="${cur_%/*}"
+               cur_="${cur_##*/}"
+               pfx="${pfx}/"
+               ;;
+       esac
+
+       __gitcomp_file "$(__git_index_files "$1" "$pfx")" "$pfx" "$cur_"
+}
+
 __git_complete_file ()
 {
        __git_complete_revlist_file
@@ -734,7 +532,6 @@ __git_complete_remote_or_refspec ()
                        case "$cmd" in
                        push) no_complete_refspec=1 ;;
                        fetch)
-                               COMPREPLY=()
                                return
                                ;;
                        *) ;;
@@ -750,7 +547,6 @@ __git_complete_remote_or_refspec ()
                return
        fi
        if [ $no_complete_refspec = 1 ]; then
-               COMPREPLY=()
                return
        fi
        [ "$remote" = "." ] && remote=
@@ -810,10 +606,19 @@ __git_complete_strategy ()
        return 1
 }
 
+__git_commands () {
+       if test -n "${GIT_TESTING_COMMAND_COMPLETION:-}"
+       then
+               printf "%s" "${GIT_TESTING_COMMAND_COMPLETION}"
+       else
+               git help -a|egrep '^  [a-zA-Z0-9]'
+       fi
+}
+
 __git_list_all_commands ()
 {
        local i IFS=" "$'\n'
-       for i in $(git help -a|egrep '^  [a-zA-Z0-9]')
+       for i in $(__git_commands)
        do
                case $i in
                *--*)             : helper pattern;;
@@ -833,7 +638,7 @@ __git_list_porcelain_commands ()
 {
        local i IFS=" "$'\n'
        __git_compute_all_commands
-       for i in "help" $__git_all_commands
+       for i in $__git_all_commands
        do
                case $i in
                *--*)             : helper pattern;;
@@ -842,10 +647,14 @@ __git_list_porcelain_commands ()
                archimport)       : import;;
                cat-file)         : plumbing;;
                check-attr)       : plumbing;;
+               check-ignore)     : plumbing;;
+               check-mailmap)    : plumbing;;
                check-ref-format) : plumbing;;
                checkout-index)   : plumbing;;
                commit-tree)      : plumbing;;
                count-objects)    : infrequent;;
+               credential-cache) : credentials helper;;
+               credential-store) : credentials helper;;
                cvsexportcommit)  : export;;
                cvsimport)        : import;;
                cvsserver)        : daemon;;
@@ -999,6 +808,43 @@ __git_has_doubledash ()
        return 1
 }
 
+# Try to count non option arguments passed on the command line for the
+# specified git command.
+# When options are used, it is necessary to use the special -- option to
+# tell the implementation were non option arguments begin.
+# XXX this can not be improved, since options can appear everywhere, as
+# an example:
+#      git mv x -n y
+#
+# __git_count_arguments requires 1 argument: the git command executed.
+__git_count_arguments ()
+{
+       local word i c=0
+
+       # Skip "git" (first argument)
+       for ((i=1; i < ${#words[@]}; i++)); do
+               word="${words[i]}"
+
+               case "$word" in
+                       --)
+                               # Good; we can assume that the following are only non
+                               # option arguments.
+                               ((c = 0))
+                               ;;
+                       "$1")
+                               # Skip the specified git command and discard git
+                               # main options
+                               ((c = 0))
+                               ;;
+                       ?*)
+                               ((c++))
+                               ;;
+               esac
+       done
+
+       printf "%d" $c
+}
+
 __git_whitespacelist="nowarn warn error error-all fix"
 
 _git_am ()
@@ -1022,7 +868,6 @@ _git_am ()
                        "
                return
        esac
-       COMPREPLY=()
 }
 
 _git_apply ()
@@ -1042,13 +887,10 @@ _git_apply ()
                        "
                return
        esac
-       COMPREPLY=()
 }
 
 _git_add ()
 {
-       __git_has_doubledash && return
-
        case "$cur" in
        --*)
                __gitcomp "
@@ -1057,7 +899,9 @@ _git_add ()
                        "
                return
        esac
-       COMPREPLY=()
+
+       # XXX should we check for --update and --all options ?
+       __git_complete_index_file "--others --modified --directory --no-empty-directory"
 }
 
 _git_archive ()
@@ -1102,7 +946,6 @@ _git_bisect ()
                __gitcomp_nl "$(__git_refs)"
                ;;
        *)
-               COMPREPLY=()
                ;;
        esac
 }
@@ -1121,11 +964,15 @@ _git_branch ()
        done
 
        case "$cur" in
+       --set-upstream-to=*)
+               __gitcomp "$(__git_refs)" "" "${cur##--set-upstream-to=}"
+               ;;
        --*)
                __gitcomp "
                        --color --no-color --verbose --abbrev= --no-abbrev
                        --track --no-track --contains --merged --no-merged
-                       --set-upstream --edit-description --list
+                       --set-upstream-to= --edit-description --list
+                       --unset-upstream
                        "
                ;;
        *)
@@ -1191,9 +1038,14 @@ _git_cherry ()
 
 _git_cherry_pick ()
 {
+       local dir="$(__gitdir)"
+       if [ -f "$dir"/CHERRY_PICK_HEAD ]; then
+               __gitcomp "--continue --quit --abort"
+               return
+       fi
        case "$cur" in
        --*)
-               __gitcomp "--edit --no-commit"
+               __gitcomp "--edit --no-commit --signoff --strategy= --mainline"
                ;;
        *)
                __gitcomp_nl "$(__git_refs)"
@@ -1203,15 +1055,15 @@ _git_cherry_pick ()
 
 _git_clean ()
 {
-       __git_has_doubledash && return
-
        case "$cur" in
        --*)
                __gitcomp "--dry-run --quiet"
                return
                ;;
        esac
-       COMPREPLY=()
+
+       # XXX should we check for -x option ?
+       __git_complete_index_file "--others --directory"
 }
 
 _git_clone ()
@@ -1231,16 +1083,22 @@ _git_clone ()
                        --upload-pack
                        --template=
                        --depth
+                       --single-branch
+                       --branch
                        "
                return
                ;;
        esac
-       COMPREPLY=()
 }
 
 _git_commit ()
 {
-       __git_has_doubledash && return
+       case "$prev" in
+       -c|-C)
+               __gitcomp_nl "$(__git_refs)" "" "${cur}"
+               return
+               ;;
+       esac
 
        case "$cur" in
        --cleanup=*)
@@ -1260,7 +1118,8 @@ _git_commit ()
        --*)
                __gitcomp "
                        --all --author= --signoff --verify --no-verify
-                       --edit --amend --include --only --interactive
+                       --edit --no-edit
+                       --amend --include --only --interactive
                        --dry-run --reuse-message= --reedit-message=
                        --reset-author --file= --message= --template=
                        --cleanup= --untracked-files --untracked-files=
@@ -1268,7 +1127,13 @@ _git_commit ()
                        "
                return
        esac
-       COMPREPLY=()
+
+       if git rev-parse --verify --quiet HEAD >/dev/null; then
+               __git_complete_index_file "--committable"
+       else
+               # This is the first commit
+               __git_complete_index_file "--cached"
+       fi
 }
 
 _git_describe ()
@@ -1284,6 +1149,8 @@ _git_describe ()
        __gitcomp_nl "$(__git_refs)"
 }
 
+__git_diff_algorithms="myers minimal patience histogram"
+
 __git_diff_common_options="--stat --numstat --shortstat --summary
                        --patch-with-stat --name-only --name-status --color
                        --no-color --color-words --no-renames --check
@@ -1294,10 +1161,11 @@ __git_diff_common_options="--stat --numstat --shortstat --summary
                        --no-ext-diff
                        --no-prefix --src-prefix= --dst-prefix=
                        --inter-hunk-context=
-                       --patience
-                       --raw
+                       --patience --histogram --minimal
+                       --raw --word-diff
                        --dirstat --dirstat= --dirstat-by-file
                        --dirstat-by-file= --cumulative
+                       --diff-algorithm=
 "
 
 _git_diff ()
@@ -1305,6 +1173,10 @@ _git_diff ()
        __git_has_doubledash && return
 
        case "$cur" in
+       --diff-algorithm=*)
+               __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
+               return
+               ;;
        --*)
                __gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
                        --base --ours --theirs --no-index
@@ -1316,8 +1188,8 @@ _git_diff ()
        __git_complete_revlist_file
 }
 
-__git_mergetools_common="diffuse ecmerge emerge kdiff3 meld opendiff
-                       tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc3
+__git_mergetools_common="diffuse diffmerge ecmerge emerge kdiff3 meld opendiff
+                       tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc3 codecompare
 "
 
 _git_difftool ()
@@ -1338,7 +1210,7 @@ _git_difftool ()
                return
                ;;
        esac
-       __git_complete_file
+       __git_complete_revlist_file
 }
 
 __git_fetch_options="
@@ -1357,6 +1229,15 @@ _git_fetch ()
        __git_complete_remote_or_refspec
 }
 
+__git_format_patch_options="
+       --stdout --attach --no-attach --thread --thread= --no-thread
+       --numbered --start-number --numbered-files --keep-subject --signoff
+       --signature --no-signature --in-reply-to= --cc= --full-index --binary
+       --not --all --cover-letter --no-prefix --src-prefix= --dst-prefix=
+       --inline --suffix= --ignore-if-in-upstream --subject-prefix=
+       --output-directory --reroll-count --to= --quiet --notes
+"
+
 _git_format_patch ()
 {
        case "$cur" in
@@ -1367,21 +1248,7 @@ _git_format_patch ()
                return
                ;;
        --*)
-               __gitcomp "
-                       --stdout --attach --no-attach --thread --thread=
-                       --output-directory
-                       --numbered --start-number
-                       --numbered-files
-                       --keep-subject
-                       --signoff --signature --no-signature
-                       --in-reply-to= --cc=
-                       --full-index --binary
-                       --not --all
-                       --cover-letter
-                       --no-prefix --src-prefix= --dst-prefix=
-                       --inline --suffix= --ignore-if-in-upstream
-                       --subject-prefix=
-                       "
+               __gitcomp "$__git_format_patch_options"
                return
                ;;
        esac
@@ -1399,7 +1266,6 @@ _git_fsck ()
                return
                ;;
        esac
-       COMPREPLY=()
 }
 
 _git_gc ()
@@ -1410,7 +1276,6 @@ _git_gc ()
                return
                ;;
        esac
-       COMPREPLY=()
 }
 
 _git_gitk ()
@@ -1487,13 +1352,10 @@ _git_init ()
                return
                ;;
        esac
-       COMPREPLY=()
 }
 
 _git_ls_files ()
 {
-       __git_has_doubledash && return
-
        case "$cur" in
        --*)
                __gitcomp "--cached --deleted --modified --others --ignored
@@ -1506,7 +1368,10 @@ _git_ls_files ()
                return
                ;;
        esac
-       COMPREPLY=()
+
+       # XXX ignore options like --modified and always suggest all cached
+       # files.
+       __git_complete_index_file "--cached"
 }
 
 _git_ls_remote ()
@@ -1622,7 +1487,6 @@ _git_mergetool ()
                return
                ;;
        esac
-       COMPREPLY=()
 }
 
 _git_merge_base ()
@@ -1638,7 +1502,14 @@ _git_mv ()
                return
                ;;
        esac
-       COMPREPLY=()
+
+       if [ $(__git_count_arguments "mv") -gt 0 ]; then
+               # We need to show both cached and untracked files (including
+               # empty directories) since this may not be the last argument.
+               __git_complete_index_file "--cached --others --directory"
+       else
+               __git_complete_index_file "--cached"
+       fi
 }
 
 _git_name_rev ()
@@ -1795,6 +1666,12 @@ _git_send_email ()
                __gitcomp "ssl tls" "" "${cur##--smtp-encryption=}"
                return
                ;;
+       --thread=*)
+               __gitcomp "
+                       deep shallow
+                       " "" "${cur##--thread=}"
+               return
+               ;;
        --*)
                __gitcomp "--annotate --bcc --cc --cc-cmd --chain-reply-to
                        --compose --confirm= --dry-run --envelope-sender
@@ -1804,11 +1681,12 @@ _git_send_email ()
                        --signed-off-by-cc --smtp-pass --smtp-server
                        --smtp-server-port --smtp-encryption= --smtp-user
                        --subject --suppress-cc= --suppress-from --thread --to
-                       --validate --no-validate"
+                       --validate --no-validate
+                       $__git_format_patch_options"
                return
                ;;
        esac
-       COMPREPLY=()
+       __git_complete_revlist
 }
 
 _git_stage ()
@@ -1822,7 +1700,7 @@ __git_config_get_set_variables ()
        while [ $c -gt 1 ]; do
                word="${words[c]}"
                case "$word" in
-               --global|--system|--file=*)
+               --system|--global|--local|--file=*)
                        config_file="$word"
                        break
                        ;;
@@ -1849,7 +1727,7 @@ __git_config_get_set_variables ()
 _git_config ()
 {
        case "$prev" in
-       branch.*.remote)
+       branch.*.remote|branch.*.pushremote)
                __gitcomp_nl "$(__git_remotes)"
                return
                ;;
@@ -1857,11 +1735,19 @@ _git_config ()
                __gitcomp_nl "$(__git_refs)"
                return
                ;;
+       branch.*.rebase)
+               __gitcomp "false true"
+               return
+               ;;
+       remote.pushdefault)
+               __gitcomp_nl "$(__git_remotes)"
+               return
+               ;;
        remote.*.fetch)
                local remote="${prev#remote.}"
                remote="${remote%.fetch}"
                if [ -z "$cur" ]; then
-                       COMPREPLY=("refs/heads/")
+                       __gitcomp_nl "refs/heads/" "" "" ""
                        return
                fi
                __gitcomp_nl "$(__git_refs_remotes "$remote")"
@@ -1896,6 +1782,10 @@ _git_config ()
                        "
                return
                ;;
+       diff.submodule)
+               __gitcomp "log short"
+               return
+               ;;
        help.format)
                __gitcomp "man info web html"
                return
@@ -1921,14 +1811,13 @@ _git_config ()
                return
                ;;
        *.*)
-               COMPREPLY=()
                return
                ;;
        esac
        case "$cur" in
        --*)
                __gitcomp "
-                       --global --system --file=
+                       --system --global --local --file=
                        --list --replace-all
                        --get --get-all --get-regexp
                        --add --unset --unset-all
@@ -1938,7 +1827,7 @@ _git_config ()
                ;;
        branch.*.*)
                local pfx="${cur%.*}." cur_="${cur##*.}"
-               __gitcomp "remote merge mergeoptions rebase" "$pfx" "$cur_"
+               __gitcomp "remote pushremote merge mergeoptions rebase" "$pfx" "$cur_"
                return
                ;;
        branch.*)
@@ -2069,7 +1958,6 @@ _git_config ()
                core.fileMode
                core.fsyncobjectfiles
                core.gitProxy
-               core.ignoreCygwinFSTricks
                core.ignoreStat
                core.ignorecase
                core.logAllRefUpdates
@@ -2091,16 +1979,18 @@ _git_config ()
                core.whitespace
                core.worktree
                diff.autorefreshindex
-               diff.statGraphWidth
                diff.external
                diff.ignoreSubmodules
                diff.mnemonicprefix
                diff.noprefix
                diff.renameLimit
                diff.renames
+               diff.statGraphWidth
+               diff.submodule
                diff.suppressBlankEmpty
                diff.tool
                diff.wordRegex
+               diff.algorithm
                difftool.
                difftool.prompt
                fetch.recurseSubmodules
@@ -2231,6 +2121,7 @@ _git_config ()
                receive.fsckObjects
                receive.unpackLimit
                receive.updateserverinfo
+               remote.pushdefault
                remotes.
                repack.usedeltabaseoffset
                rerere.autoupdate
@@ -2278,7 +2169,7 @@ _git_config ()
 
 _git_remote ()
 {
-       local subcommands="add rename rm set-head set-branches set-url show prune update"
+       local subcommands="add rename remove set-head set-branches set-url show prune update"
        local subcommand="$(__git_find_on_cmdline "$subcommands")"
        if [ -z "$subcommand" ]; then
                __gitcomp "$subcommands"
@@ -2286,7 +2177,7 @@ _git_remote ()
        fi
 
        case "$subcommand" in
-       rename|rm|set-url|show|prune)
+       rename|remove|set-url|show|prune)
                __gitcomp_nl "$(__git_remotes)"
                ;;
        set-head|set-branches)
@@ -2301,7 +2192,6 @@ _git_remote ()
                __gitcomp "$c"
                ;;
        *)
-               COMPREPLY=()
                ;;
        esac
 }
@@ -2337,15 +2227,14 @@ _git_revert ()
 
 _git_rm ()
 {
-       __git_has_doubledash && return
-
        case "$cur" in
        --*)
                __gitcomp "--cached --dry-run --ignore-unmatch --quiet"
                return
                ;;
        esac
-       COMPREPLY=()
+
+       __git_complete_index_file "--cached"
 }
 
 _git_shortlog ()
@@ -2375,6 +2264,10 @@ _git_show ()
                        " "" "${cur#*=}"
                return
                ;;
+       --diff-algorithm=*)
+               __gitcomp "$__git_diff_algorithms" "" "${cur##--diff-algorithm=}"
+               return
+               ;;
        --*)
                __gitcomp "--pretty= --format= --abbrev-commit --oneline
                        $__git_diff_common_options
@@ -2382,7 +2275,7 @@ _git_show ()
                return
                ;;
        esac
-       __git_complete_file
+       __git_complete_revlist_file
 }
 
 _git_show_branch ()
@@ -2414,8 +2307,6 @@ _git_stash ()
                *)
                        if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then
                                __gitcomp "$subcommands"
-                       else
-                               COMPREPLY=()
                        fi
                        ;;
                esac
@@ -2428,14 +2319,12 @@ _git_stash ()
                        __gitcomp "--index --quiet"
                        ;;
                show,--*|drop,--*|branch,--*)
-                       COMPREPLY=()
                        ;;
                show,*|apply,*|drop,*|pop,*|branch,*)
                        __gitcomp_nl "$(git --git-dir="$(__gitdir)" stash list \
                                        | sed -n -e 's/:.*//p')"
                        ;;
                *)
-                       COMPREPLY=()
                        ;;
                esac
        fi
@@ -2445,7 +2334,7 @@ _git_submodule ()
 {
        __git_has_doubledash && return
 
-       local subcommands="add status init update summary foreach sync"
+       local subcommands="add status init deinit update summary foreach sync"
        if [ -z "$(__git_find_on_cmdline "$subcommands")" ]; then
                case "$cur" in
                --*)
@@ -2477,7 +2366,7 @@ _git_svn ()
                        --no-metadata --use-svm-props --use-svnsync-props
                        --log-window-size= --no-checkout --quiet
                        --repack-flags --use-log-author --localtime
-                       --ignore-paths= $remote_opts
+                       --ignore-paths= --include-paths= $remote_opts
                        "
                local init_opts="
                        --template= --shared= --trunk= --tags=
@@ -2552,7 +2441,6 @@ _git_svn ()
                        __gitcomp "--revision= --parent"
                        ;;
                *)
-                       COMPREPLY=()
                        ;;
                esac
        fi
@@ -2577,13 +2465,10 @@ _git_tag ()
 
        case "$prev" in
        -m|-F)
-               COMPREPLY=()
                ;;
        -*|tag)
                if [ $f = 1 ]; then
                        __gitcomp_nl "$(__git_tags)"
-               else
-                       COMPREPLY=()
                fi
                ;;
        *)
@@ -2597,7 +2482,7 @@ _git_whatchanged ()
        _git_log
 }
 
-_main_git ()
+__git_main ()
 {
        local i c=1 command __git_dir
 
@@ -2605,9 +2490,10 @@ _main_git ()
                i="${words[c]}"
                case "$i" in
                --git-dir=*) __git_dir="${i#--git-dir=}" ;;
+               --git-dir)   ((c++)) ; __git_dir="${words[c]}" ;;
                --bare)      __git_dir="." ;;
                --help) command="help"; break ;;
-               -c) c=$((++c)) ;;
+               -c|--work-tree|--namespace) ((c++)) ;;
                -*) ;;
                *) command="$i"; break ;;
                esac
@@ -2625,6 +2511,7 @@ _main_git ()
                        --exec-path
                        --exec-path=
                        --html-path
+                       --man-path
                        --info-path
                        --work-tree=
                        --namespace=
@@ -2648,7 +2535,7 @@ _main_git ()
        fi
 }
 
-_main_gitk ()
+__gitk_main ()
 {
        __git_has_doubledash && return
 
@@ -2670,20 +2557,72 @@ _main_gitk ()
        __git_complete_revlist
 }
 
-__git_func_wrap ()
-{
-       if [[ -n ${ZSH_VERSION-} ]]; then
-               emulate -L bash
-               setopt KSH_TYPESET
+if [[ -n ${ZSH_VERSION-} ]]; then
+       echo "WARNING: this script is deprecated, please see git-completion.zsh" 1>&2
 
-               # workaround zsh's bug that leaves 'words' as a special
-               # variable in versions < 4.3.12
-               typeset -h words
+       autoload -U +X compinit && compinit
 
-               # workaround zsh's bug that quotes spaces in the COMPREPLY
-               # array if IFS doesn't contain spaces.
-               typeset -h IFS
-       fi
+       __gitcomp ()
+       {
+               emulate -L zsh
+
+               local cur_="${3-$cur}"
+
+               case "$cur_" in
+               --*=)
+                       ;;
+               *)
+                       local c IFS=$' \t\n'
+                       local -a array
+                       for c in ${=1}; do
+                               c="$c${4-}"
+                               case $c in
+                               --*=*|*.) ;;
+                               *) c="$c " ;;
+                               esac
+                               array[${#array[@]}+1]="$c"
+                       done
+                       compset -P '*[=:]'
+                       compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
+                       ;;
+               esac
+       }
+
+       __gitcomp_nl ()
+       {
+               emulate -L zsh
+
+               local IFS=$'\n'
+               compset -P '*[=:]'
+               compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
+       }
+
+       __gitcomp_file ()
+       {
+               emulate -L zsh
+
+               local IFS=$'\n'
+               compset -P '*[=:]'
+               compadd -Q -p "${2-}" -f -- ${=1} && _ret=0
+       }
+
+       _git ()
+       {
+               local _ret=1 cur cword prev
+               cur=${words[CURRENT]}
+               prev=${words[CURRENT-1]}
+               let cword=CURRENT-1
+               emulate ksh -c __${service}_main
+               let _ret && _default && _ret=0
+               return _ret
+       }
+
+       compdef _git git gitk
+       return
+fi
+
+__git_func_wrap ()
+{
        local cur words cword prev
        _get_comp_words_by_ref -n =: cur words cword prev
        $1
@@ -2703,22 +2642,22 @@ __git_complete ()
 # wrapper for backwards compatibility
 _git ()
 {
-       __git_wrap_main_git
+       __git_wrap__git_main
 }
 
 # wrapper for backwards compatibility
 _gitk ()
 {
-       __git_wrap_main_gitk
+       __git_wrap__gitk_main
 }
 
-__git_complete git _main_git
-__git_complete gitk _main_gitk
+__git_complete git __git_main
+__git_complete gitk __gitk_main
 
 # The following are necessary only for Cygwin, and only are needed
 # when the user has tab-completed the executable name and consequently
 # included the '.exe' suffix.
 #
 if [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
-__git_complete git.exe _main_git
+__git_complete git.exe __git_main
 fi