diff --git a/plugins/gitfast/_git b/plugins/gitfast/_git index cf8116d47..fac5e711e 100644 --- a/plugins/gitfast/_git +++ b/plugins/gitfast/_git @@ -2,18 +2,19 @@ # zsh completion wrapper for git # -# You need git's bash completion script installed somewhere, by default on the -# same directory as this script. +# Copyright (c) 2012-2013 Felipe Contreras # -# If your script is on ~/.git-completion.sh instead, you can configure it on -# your ~/.zshrc: +# You need git's bash completion script installed somewhere, by default it +# would be the location bash-completion uses. +# +# If your script is somewhere else, you can configure it on your ~/.zshrc: # # zstyle ':completion:*:*:git:*' script ~/.git-completion.sh # -# The recommended way to install this script is to copy to -# '~/.zsh/completion/_git', and then add the following to your ~/.zshrc file: +# The recommended way to install this script is to copy to '~/.zsh/_git', and +# then add the following to your ~/.zshrc file: # -# fpath=(~/.zsh/completion $fpath) +# fpath=(~/.zsh $fpath) complete () { @@ -21,8 +22,23 @@ complete () return 0 } +zstyle -T ':completion:*:*:git:*' tag-order && \ + zstyle ':completion:*:*:git:*' tag-order 'common-commands' + zstyle -s ":completion:*:*:git:*" script script -test -z "$script" && script="$(dirname ${funcsourcetrace[1]%:*})"/git-completion.bash +if [ -z "$script" ]; then + local -a locations + local e + locations=( + '/etc/bash_completion.d/git' # fedora, old debian + '/usr/share/bash-completion/completions/git' # arch, ubuntu, new debian + '/usr/share/bash-completion/git' # gentoo + $(dirname ${funcsourcetrace[1]%:*})/git-completion.bash + ) + for e in $locations; do + test -f $e && script="$e" && break + done +fi ZSH_VERSION='' . "$script" __gitcomp () @@ -69,18 +85,131 @@ __gitcomp_file () compadd -Q -p "${2-}" -f -- ${=1} && _ret=0 } +__git_zsh_bash_func () +{ + emulate -L ksh + + local command=$1 + + local completion_func="_git_${command//-/_}" + declare -f $completion_func >/dev/null && $completion_func && return + + local expansion=$(__git_aliased_command "$command") + if [ -n "$expansion" ]; then + completion_func="_git_${expansion//-/_}" + declare -f $completion_func >/dev/null && $completion_func + fi +} + +__git_zsh_cmd_common () +{ + local -a list + list=( + add:'add file contents to the index' + bisect:'find by binary search the change that introduced a bug' + branch:'list, create, or delete branches' + checkout:'checkout a branch or paths to the working tree' + clone:'clone a repository into a new directory' + commit:'record changes to the repository' + diff:'show changes between commits, commit and working tree, etc' + fetch:'download objects and refs from another repository' + grep:'print lines matching a pattern' + init:'create an empty Git repository or reinitialize an existing one' + log:'show commit logs' + merge:'join two or more development histories together' + mv:'move or rename a file, a directory, or a symlink' + pull:'fetch from and merge with another repository or a local branch' + push:'update remote refs along with associated objects' + rebase:'forward-port local commits to the updated upstream head' + reset:'reset current HEAD to the specified state' + rm:'remove files from the working tree and from the index' + show:'show various types of objects' + status:'show the working tree status' + tag:'create, list, delete or verify a tag object signed with GPG') + _describe -t common-commands 'common commands' list && _ret=0 +} + +__git_zsh_cmd_alias () +{ + local -a list + list=(${${${(0)"$(git config -z --get-regexp '^alias\.')"}#alias.}%$'\n'*}) + _describe -t alias-commands 'aliases' list $* && _ret=0 +} + +__git_zsh_cmd_all () +{ + local -a list + emulate ksh -c __git_compute_all_commands + list=( ${=__git_all_commands} ) + _describe -t all-commands 'all commands' list && _ret=0 +} + +__git_zsh_main () +{ + local curcontext="$curcontext" state state_descr line + typeset -A opt_args + local -a orig_words + + orig_words=( ${words[@]} ) + + _arguments -C \ + '(-p --paginate --no-pager)'{-p,--paginate}'[pipe all output into ''less'']' \ + '(-p --paginate)--no-pager[do not pipe git output into a pager]' \ + '--git-dir=-[set the path to the repository]: :_directories' \ + '--bare[treat the repository as a bare repository]' \ + '(- :)--version[prints the git suite version]' \ + '--exec-path=-[path to where your core git programs are installed]:: :_directories' \ + '--html-path[print the path where git''s HTML documentation is installed]' \ + '--info-path[print the path where the Info files are installed]' \ + '--man-path[print the manpath (see `man(1)`) for the man pages]' \ + '--work-tree=-[set the path to the working tree]: :_directories' \ + '--namespace=-[set the git namespace]' \ + '--no-replace-objects[do not use replacement refs to replace git objects]' \ + '(- :)--help[prints the synopsis and a list of the most commonly used commands]: :->arg' \ + '(-): :->command' \ + '(-)*:: :->arg' && return + + case $state in + (command) + _alternative \ + 'alias-commands:alias:__git_zsh_cmd_alias' \ + 'common-commands:common:__git_zsh_cmd_common' \ + 'all-commands:all:__git_zsh_cmd_all' && _ret=0 + ;; + (arg) + local command="${words[1]}" __git_dir + + if (( $+opt_args[--bare] )); then + __git_dir='.' + else + __git_dir=${opt_args[--git-dir]} + fi + + (( $+opt_args[--help] )) && command='help' + + words=( ${orig_words[@]} ) + + __git_zsh_bash_func $command + ;; + esac +} + _git () { local _ret=1 - () { - emulate -L ksh - local cur cword prev - cur=${words[CURRENT-1]} - prev=${words[CURRENT-2]} - let cword=CURRENT-1 - __${service}_main - } - let _ret && _default -S '' && _ret=0 + local cur cword prev + + cur=${words[CURRENT]} + prev=${words[CURRENT-1]} + let cword=CURRENT-1 + + if (( $+functions[__${service}_zsh_main] )); then + __${service}_zsh_main + else + emulate ksh -c __${service}_main + fi + + let _ret && _default && _ret=0 return _ret } diff --git a/plugins/gitfast/git-completion.bash b/plugins/gitfast/git-completion.bash index 93eba4675..5da920ecd 100644 --- a/plugins/gitfast/git-completion.bash +++ b/plugins/gitfast/git-completion.bash @@ -33,8 +33,6 @@ esac # returns location of .git repo __gitdir () { - # Note: this function is duplicated in git-prompt.sh - # When updating it, make sure you update the other one to match. if [ -z "${1-}" ]; then if [ -n "${__git_dir-}" ]; then echo "$__git_dir" @@ -53,19 +51,6 @@ __gitdir () fi } -__gitcomp_1 () -{ - local c IFS=$' \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+ @@ -195,8 +180,18 @@ _get_comp_words_by_ref () } fi -# Generates completion reply with compgen, appending a space to possible -# completion words, if necessary. +__gitcompadd () +{ + local i=0 + for x in $1; do + if [[ "$x" == "$3"* ]]; then + COMPREPLY[i++]="$2$x$4" + fi + done +} + +# Generates completion reply, appending a space to possible completion words, +# if necessary. # It accepts 1 to 4 arguments: # 1: List of possible completion words. # 2: A prefix to be added to each possible completion word (optional). @@ -208,19 +203,25 @@ __gitcomp () case "$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). @@ -231,7 +232,7 @@ __gitcomp () __gitcomp_nl () { local IFS=$'\n' - COMPREPLY=($(compgen -P "${2-}" -S "${4- }" -W "$1" -- "${3-$cur}")) + __gitcompadd "$1" "${2-}" "${3-$cur}" "${4- }" } # Generates completion reply with compgen from newline-separated possible @@ -249,106 +250,50 @@ __gitcomp_file () # since tilde expansion is not applied. # This means that COMPREPLY will be empty and Bash default # completion will be used. - COMPREPLY=($(compgen -P "${2-}" -W "$1" -- "${3-$cur}")) + __gitcompadd "$1" "${2-}" "${3-$cur}" "" - # Tell Bash that compspec generates filenames. - compopt -o filenames 2>/dev/null + # 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 } -__git_index_file_list_filter_compat () -{ - local path - - while read -r path; do - case "$path" in - ?*/*) echo "${path%%/*}/" ;; - *) echo "$path" ;; - esac - done -} - -__git_index_file_list_filter_bash () -{ - local path - - while read -r path; do - case "$path" in - ?*/*) - # XXX if we append a slash to directory names when using - # `compopt -o filenames`, Bash will append another slash. - # This is pretty stupid, and this the reason why we have to - # define a compatible version for this function. - echo "${path%%/*}" ;; - *) - echo "$path" ;; - esac - done -} - -# Process path list returned by "ls-files" and "diff-index --name-only" -# commands, in order to list only file names relative to a specified -# directory, and append a slash to directory names. -__git_index_file_list_filter () -{ - # Default to Bash >= 4.x - __git_index_file_list_filter_bash -} - -# Execute git ls-files, returning paths relative to the directory -# specified in the first argument, and using the options specified in -# the second argument. +# 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 - # NOTE: $2 is not quoted in order to support multiple options - cd "$1" && git ls-files --exclude-standard $2 + 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 $2 + fi ) 2>/dev/null } -# Execute git diff-index, returning paths relative to the directory -# specified in the first argument, and using the tree object id -# specified in the second argument. -__git_diff_index_helper () -{ - ( - test -n "${CDPATH+set}" && unset CDPATH - cd "$1" && git diff-index --name-only --relative "$2" - ) 2>/dev/null -} - # __git_index_files accepts 1 or 2 arguments: # 1: Options to pass to ls-files (required). -# Supported options are --cached, --modified, --deleted, --others, -# and --directory. # 2: A directory path (optional). # If provided, only files within the specified directory are listed. # Sub directories are never recursed. Path must have a trailing # slash. __git_index_files () { - local dir="$(__gitdir)" root="${2-.}" + local dir="$(__gitdir)" root="${2-.}" file if [ -d "$dir" ]; then - __git_ls_files_helper "$root" "$1" | __git_index_file_list_filter | - sort | uniq - fi -} - -# __git_diff_index_files accepts 1 or 2 arguments: -# 1) The id of a tree object. -# 2) A directory path (optional). -# If provided, only files within the specified directory are listed. -# Sub directories are never recursed. Path must have a trailing -# slash. -__git_diff_index_files () -{ - local dir="$(__gitdir)" root="${2-.}" - - if [ -d "$dir" ]; then - __git_diff_index_helper "$root" "$1" | __git_index_file_list_filter | - sort | uniq + __git_ls_files_helper "$root" "$1" | + while read -r file; do + case "$file" in + ?*/*) echo "${file%%/*}" ;; + *) echo "$file" ;; + esac + done | sort | uniq fi } @@ -424,14 +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 } @@ -549,44 +488,23 @@ __git_complete_revlist_file () } -# __git_complete_index_file requires 1 argument: the options to pass to -# ls-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_="$cur" + local pfx="" cur_="$cur" case "$cur_" in ?*/*) pfx="${cur_%/*}" cur_="${cur_##*/}" pfx="${pfx}/" - - __gitcomp_file "$(__git_index_files "$1" "$pfx")" "$pfx" "$cur_" - ;; - *) - __gitcomp_file "$(__git_index_files "$1")" "" "$cur_" ;; esac -} -# __git_complete_diff_index_file requires 1 argument: the id of a tree -# object -__git_complete_diff_index_file () -{ - local pfx cur_="$cur" - - case "$cur_" in - ?*/*) - pfx="${cur_%/*}" - cur_="${cur_##*/}" - pfx="${pfx}/" - - __gitcomp_file "$(__git_diff_index_files "$1" "$pfx")" "$pfx" "$cur_" - ;; - *) - __gitcomp_file "$(__git_diff_index_files "$1")" "" "$cur_" - ;; - esac + __gitcomp_file "$(__git_index_files "$1" "$pfx")" "$pfx" "$cur_" } __git_complete_file () @@ -614,7 +532,6 @@ __git_complete_remote_or_refspec () case "$cmd" in push) no_complete_refspec=1 ;; fetch) - COMPREPLY=() return ;; *) ;; @@ -630,7 +547,6 @@ __git_complete_remote_or_refspec () return fi if [ $no_complete_refspec = 1 ]; then - COMPREPLY=() return fi [ "$remote" = "." ] && remote= @@ -732,6 +648,7 @@ __git_list_porcelain_commands () cat-file) : plumbing;; check-attr) : plumbing;; check-ignore) : plumbing;; + check-mailmap) : plumbing;; check-ref-format) : plumbing;; checkout-index) : plumbing;; commit-tree) : plumbing;; @@ -951,7 +868,6 @@ _git_am () " return esac - COMPREPLY=() } _git_apply () @@ -971,7 +887,6 @@ _git_apply () " return esac - COMPREPLY=() } _git_add () @@ -1031,7 +946,6 @@ _git_bisect () __gitcomp_nl "$(__git_refs)" ;; *) - COMPREPLY=() ;; esac } @@ -1124,9 +1038,14 @@ _git_cherry () _git_cherry_pick () { + local dir="$(__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 "$(__git_refs)" @@ -1170,7 +1089,6 @@ _git_clone () return ;; esac - COMPREPLY=() } _git_commit () @@ -1182,13 +1100,6 @@ _git_commit () ;; esac - case "$prev" in - -c|-C) - __gitcomp_nl "$(__git_refs)" "" "${cur}" - return - ;; - esac - case "$cur" in --cleanup=*) __gitcomp "default strip verbatim whitespace @@ -1218,7 +1129,7 @@ _git_commit () esac if git rev-parse --verify --quiet HEAD >/dev/null; then - __git_complete_diff_index_file "HEAD" + __git_complete_index_file "--committable" else # This is the first commit __git_complete_index_file "--cached" @@ -1251,7 +1162,7 @@ __git_diff_common_options="--stat --numstat --shortstat --summary --no-prefix --src-prefix= --dst-prefix= --inter-hunk-context= --patience --histogram --minimal - --raw + --raw --word-diff --dirstat --dirstat= --dirstat-by-file --dirstat-by-file= --cumulative --diff-algorithm= @@ -1299,7 +1210,7 @@ _git_difftool () return ;; esac - __git_complete_file + __git_complete_revlist_file } __git_fetch_options=" @@ -1319,11 +1230,12 @@ _git_fetch () } __git_format_patch_options=" - --stdout --attach --no-attach --thread --thread= --output-directory + --stdout --attach --no-attach --thread --thread= --no-thread --numbered --start-number --numbered-files --keep-subject --signoff --signature --no-signature --in-reply-to= --cc= --full-index --binary --not --all --cover-letter --no-prefix --src-prefix= --dst-prefix= --inline --suffix= --ignore-if-in-upstream --subject-prefix= + --output-directory --reroll-count --to= --quiet --notes " _git_format_patch () @@ -1354,7 +1266,6 @@ _git_fsck () return ;; esac - COMPREPLY=() } _git_gc () @@ -1365,7 +1276,6 @@ _git_gc () return ;; esac - COMPREPLY=() } _git_gitk () @@ -1442,7 +1352,6 @@ _git_init () return ;; esac - COMPREPLY=() } _git_ls_files () @@ -1578,7 +1487,6 @@ _git_mergetool () return ;; esac - COMPREPLY=() } _git_merge_base () @@ -1819,7 +1727,7 @@ __git_config_get_set_variables () _git_config () { case "$prev" in - branch.*.remote) + branch.*.remote|branch.*.pushremote) __gitcomp_nl "$(__git_remotes)" return ;; @@ -1827,11 +1735,19 @@ _git_config () __gitcomp_nl "$(__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")" @@ -1866,6 +1782,10 @@ _git_config () " return ;; + diff.submodule) + __gitcomp "log short" + return + ;; help.format) __gitcomp "man info web html" return @@ -1891,7 +1811,6 @@ _git_config () return ;; *.*) - COMPREPLY=() return ;; esac @@ -1908,7 +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.*) @@ -2039,7 +1958,6 @@ _git_config () core.fileMode core.fsyncobjectfiles core.gitProxy - core.ignoreCygwinFSTricks core.ignoreStat core.ignorecase core.logAllRefUpdates @@ -2061,13 +1979,14 @@ _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 @@ -2202,6 +2121,7 @@ _git_config () receive.fsckObjects receive.unpackLimit receive.updateserverinfo + remote.pushdefault remotes. repack.usedeltabaseoffset rerere.autoupdate @@ -2272,7 +2192,6 @@ _git_remote () __gitcomp "$c" ;; *) - COMPREPLY=() ;; esac } @@ -2356,7 +2275,7 @@ _git_show () return ;; esac - __git_complete_file + __git_complete_revlist_file } _git_show_branch () @@ -2388,8 +2307,6 @@ _git_stash () *) if [ -z "$(__git_find_on_cmdline "$save_opts")" ]; then __gitcomp "$subcommands" - else - COMPREPLY=() fi ;; esac @@ -2402,14 +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 @@ -2419,7 +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 --*) @@ -2451,7 +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= $remote_opts " local init_opts=" --template= --shared= --trunk= --tags= @@ -2526,7 +2441,6 @@ _git_svn () __gitcomp "--revision= --parent" ;; *) - COMPREPLY=() ;; esac fi @@ -2551,13 +2465,10 @@ _git_tag () case "$prev" in -m|-F) - COMPREPLY=() ;; -*|tag) if [ $f = 1 ]; then __gitcomp_nl "$(__git_tags)" - else - COMPREPLY=() fi ;; *) @@ -2579,9 +2490,10 @@ __git_main () 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 @@ -2599,6 +2511,7 @@ __git_main () --exec-path --exec-path= --html-path + --man-path --info-path --work-tree= --namespace= @@ -2693,35 +2606,19 @@ if [[ -n ${ZSH_VERSION-} ]]; then compadd -Q -p "${2-}" -f -- ${=1} && _ret=0 } - __git_zsh_helper () - { - emulate -L ksh - local cur cword prev - cur=${words[CURRENT-1]} - prev=${words[CURRENT-2]} - let cword=CURRENT-1 - __${service}_main - } - _git () { - emulate -L zsh - local _ret=1 - __git_zsh_helper - let _ret && _default -S '' && _ret=0 + 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 -elif [[ -n ${BASH_VERSION-} ]]; then - if ((${BASH_VERSINFO[0]} < 4)); then - # compopt is not supported - __git_index_file_list_filter () - { - __git_index_file_list_filter_compat - } - fi fi __git_func_wrap () diff --git a/plugins/gitfast/git-prompt.sh b/plugins/gitfast/git-prompt.sh index 65f8368f1..a81ef5a48 100644 --- a/plugins/gitfast/git-prompt.sh +++ b/plugins/gitfast/git-prompt.sh @@ -3,7 +3,7 @@ # Copyright (C) 2006,2007 Shawn O. Pearce # Distributed under the GNU General Public License, version 2.0. # -# This script allows you to see the current branch in your prompt. +# This script allows you to see repository status in your prompt. # # To enable: # @@ -13,23 +13,27 @@ # 3a) Change your PS1 to call __git_ps1 as # command-substitution: # Bash: PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ ' -# ZSH: PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ ' +# ZSH: setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ ' # the optional argument will be used as format string. -# 3b) Alternatively, if you are using bash, __git_ps1 can be -# used for PROMPT_COMMAND with two parameters,
 and
-#        , which are strings you would put in $PS1 before
-#        and after the status string generated by the git-prompt
-#        machinery.  e.g.
-#           PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
-#        will show username, at-sign, host, colon, cwd, then
-#        various status string, followed by dollar and SP, as
-#        your prompt.
+#    3b) Alternatively, for a slightly faster prompt, __git_ps1 can
+#        be used for PROMPT_COMMAND in Bash or for precmd() in Zsh
+#        with two parameters, 
 and , which are strings
+#        you would put in $PS1 before and after the status string
+#        generated by the git-prompt machinery.  e.g.
+#        Bash: PROMPT_COMMAND='__git_ps1 "\u@\h:\w" "\\\$ "'
+#          will show username, at-sign, host, colon, cwd, then
+#          various status string, followed by dollar and SP, as
+#          your prompt.
+#        ZSH:  precmd () { __git_ps1 "%n" ":%~$ " "|%s" }
+#          will show username, pipe, then various status string,
+#          followed by colon, cwd, dollar and SP, as your prompt.
 #        Optionally, you can supply a third argument with a printf
 #        format string to finetune the output of the branch status
 #
-# 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.
+# The repository status will be displayed only if you are currently in a
+# git repository. The %s token is the placeholder for the shown status.
+#
+# The prompt status always includes the current branch name.
 #
 # In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
 # unstaged (*) and staged (+) changes will be shown next to the branch
@@ -77,31 +81,8 @@
 #
 # If you would like a colored hint about the current dirty state, set
 # GIT_PS1_SHOWCOLORHINTS to a nonempty value. The colors are based on
-# the colored output of "git status -sb".
-
-# __gitdir accepts 0 or 1 arguments (i.e., location)
-# returns location of .git repo
-__gitdir ()
-{
-	# Note: this function is duplicated in git-completion.bash
-	# When updating it, make sure you update the other one to match.
-	if [ -z "${1-}" ]; then
-		if [ -n "${__git_dir-}" ]; then
-			echo "$__git_dir"
-		elif [ -n "${GIT_DIR-}" ]; then
-			test -d "${GIT_DIR-}" || return 1
-			echo "$GIT_DIR"
-		elif [ -d .git ]; then
-			echo .git
-		else
-			git rev-parse --git-dir 2>/dev/null
-		fi
-	elif [ -d "$1/.git" ]; then
-		echo "$1/.git"
-	else
-		echo "$1"
-	fi
-}
+# the colored output of "git status -sb" and are available only when
+# using __git_ps1 for PROMPT_COMMAND or precmd.
 
 # stores the divergence from upstream in $p
 # used by GIT_PS1_SHOWUPSTREAM
@@ -124,7 +105,7 @@ __git_ps1_show_upstream ()
 			fi
 			;;
 		svn-remote.*.url)
-			svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
+			svn_remote[$((${#svn_remote[@]} + 1))]="$value"
 			svn_url_pattern+="\\|$value"
 			upstream=svn+git # default upstream is SVN if available, else git
 			;;
@@ -146,10 +127,11 @@ __git_ps1_show_upstream ()
 	svn*)
 		# get the upstream from the "git-svn-id: ..." in a commit message
 		# (git-svn uses essentially the same procedure internally)
-		local svn_upstream=($(git log --first-parent -1 \
+		local -a svn_upstream
+		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[${#svn_upstream[@]} - 2]}
 			svn_upstream=${svn_upstream%@*}
 			local n_stop="${#svn_remote[@]}"
 			for ((n=1; n <= n_stop; n++)); do
@@ -222,6 +204,51 @@ __git_ps1_show_upstream ()
 
 }
 
+# Helper function that is meant to be called from __git_ps1.  It
+# injects color codes into the appropriate gitstring variables used
+# to build a gitstring.
+__git_ps1_colorize_gitstring ()
+{
+	if [[ -n ${ZSH_VERSION-} ]]; then
+		local c_red='%F{red}'
+		local c_green='%F{green}'
+		local c_lblue='%F{blue}'
+		local c_clear='%f'
+	else
+		# Using \[ and \] around colors is necessary to prevent
+		# issues with command line editing/browsing/completion!
+		local c_red='\[\e[31m\]'
+		local c_green='\[\e[32m\]'
+		local c_lblue='\[\e[1;34m\]'
+		local c_clear='\[\e[0m\]'
+	fi
+	local bad_color=$c_red
+	local ok_color=$c_green
+	local flags_color="$c_lblue"
+
+	local branch_color=""
+	if [ $detached = no ]; then
+		branch_color="$ok_color"
+	else
+		branch_color="$bad_color"
+	fi
+	c="$branch_color$c"
+
+	z="$c_clear$z"
+	if [ "$w" = "*" ]; then
+		w="$bad_color$w"
+	fi
+	if [ -n "$i" ]; then
+		i="$ok_color$i"
+	fi
+	if [ -n "$s" ]; then
+		s="$flags_color$s"
+	fi
+	if [ -n "$u" ]; then
+		u="$bad_color$u"
+	fi
+	r="$c_clear$r"
+}
 
 # __git_ps1 accepts 0 or 1 arguments (i.e., format string)
 # when called from PS1 using command substitution
@@ -254,39 +281,83 @@ __git_ps1 ()
 		;;
 	esac
 
-	local g="$(__gitdir)"
-	if [ -z "$g" ]; then
+	local repo_info rev_parse_exit_code
+	repo_info="$(git rev-parse --git-dir --is-inside-git-dir \
+		--is-bare-repository --is-inside-work-tree \
+		--short HEAD 2>/dev/null)"
+	rev_parse_exit_code="$?"
+
+	if [ -z "$repo_info" ]; then
 		if [ $pcmode = yes ]; then
 			#In PC mode PS1 always needs to be set
 			PS1="$ps1pc_start$ps1pc_end"
 		fi
-	else
-		local r=""
-		local b=""
+		return
+	fi
+
+	local short_sha
+	if [ "$rev_parse_exit_code" = "0" ]; then
+		short_sha="${repo_info##*$'\n'}"
+		repo_info="${repo_info%$'\n'*}"
+	fi
+	local inside_worktree="${repo_info##*$'\n'}"
+	repo_info="${repo_info%$'\n'*}"
+	local bare_repo="${repo_info##*$'\n'}"
+	repo_info="${repo_info%$'\n'*}"
+	local inside_gitdir="${repo_info##*$'\n'}"
+	local g="${repo_info%$'\n'*}"
+
+	local r=""
+	local b=""
+	local step=""
+	local total=""
+	if [ -d "$g/rebase-merge" ]; then
+		read b 2>/dev/null <"$g/rebase-merge/head-name"
+		read step 2>/dev/null <"$g/rebase-merge/msgnum"
+		read total 2>/dev/null <"$g/rebase-merge/end"
 		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"
+			r="|REBASE-m"
+		fi
+	else
+		if [ -d "$g/rebase-apply" ]; then
+			read step 2>/dev/null <"$g/rebase-apply/next"
+			read total 2>/dev/null <"$g/rebase-apply/last"
+			if [ -f "$g/rebase-apply/rebasing" ]; then
+				read b 2>/dev/null <"$g/rebase-apply/head-name"
+				r="|REBASE"
+			elif [ -f "$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 "$g/REVERT_HEAD" ]; then
+			r="|REVERTING"
+		elif [ -f "$g/BISECT_LOG" ]; then
+			r="|BISECTING"
+		fi
 
-			b="$(git symbolic-ref HEAD 2>/dev/null)" || {
+		if [ -n "$b" ]; then
+			:
+		elif [ -h "$g/HEAD" ]; then
+			# symlink symbolic ref
+			b="$(git symbolic-ref HEAD 2>/dev/null)"
+		else
+			local head=""
+			if ! read head 2>/dev/null <"$g/HEAD"; then
+				if [ $pcmode = yes ]; then
+					PS1="$ps1pc_start$ps1pc_end"
+				fi
+				return
+			fi
+			# is it a symbolic ref?
+			b="${head#ref: }"
+			if [ "$head" = "$b" ]; then
 				detached=yes
 				b="$(
 				case "${GIT_PS1_DESCRIBE_STYLE-}" in
@@ -300,100 +371,75 @@ __git_ps1 ()
 					git describe --tags --exact-match HEAD ;;
 				esac 2>/dev/null)" ||
 
-				b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." ||
-				b="unknown"
+				b="$short_sha..."
 				b="($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-}" ] &&
-			   [ "$(git config --bool bash.showDirtyState)" != "false" ]
-			then
-				git diff --no-ext-diff --quiet --exit-code || w="*"
-				if git rev-parse --quiet --verify HEAD >/dev/null; then
-					git diff-index --cached --quiet HEAD -- || i="+"
-				else
-					i="#"
-				fi
-			fi
-			if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then
-				git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"
-			fi
-
-			if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
-			   [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
-			   [ -n "$(git ls-files --others --exclude-standard)" ]
-			then
-				u="%%"
-			fi
-
-			if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
-				__git_ps1_show_upstream
-			fi
-		fi
-
-		local f="$w$i$s$u"
-		if [ $pcmode = yes ]; then
-			local gitstring=
-			if [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
-				local c_red='\e[31m'
-				local c_green='\e[32m'
-				local c_lblue='\e[1;34m'
-				local c_clear='\e[0m'
-				local bad_color=$c_red
-				local ok_color=$c_green
-				local branch_color="$c_clear"
-				local flags_color="$c_lblue"
-				local branchstring="$c${b##refs/heads/}"
-
-				if [ $detached = no ]; then
-					branch_color="$ok_color"
-				else
-					branch_color="$bad_color"
-				fi
-
-				# Setting gitstring directly with \[ and \] around colors
-				# is necessary to prevent wrapping issues!
-				gitstring="\[$branch_color\]$branchstring\[$c_clear\]"
-
-				if [ -n "$w$i$s$u$r$p" ]; then
-					gitstring="$gitstring "
-				fi
-				if [ "$w" = "*" ]; then
-					gitstring="$gitstring\[$bad_color\]$w"
-				fi
-				if [ -n "$i" ]; then
-					gitstring="$gitstring\[$ok_color\]$i"
-				fi
-				if [ -n "$s" ]; then
-					gitstring="$gitstring\[$flags_color\]$s"
-				fi
-				if [ -n "$u" ]; then
-					gitstring="$gitstring\[$bad_color\]$u"
-				fi
-				gitstring="$gitstring\[$c_clear\]$r$p"
-			else
-				gitstring="$c${b##refs/heads/}${f:+ $f}$r$p"
-			fi
-			gitstring=$(printf -- "$printf_format" "$gitstring")
-			PS1="$ps1pc_start$gitstring$ps1pc_end"
-		else
-			# NO color option unless in PROMPT_COMMAND mode
-			printf -- "$printf_format" "$c${b##refs/heads/}${f:+ $f}$r$p"
 		fi
 	fi
+
+	if [ -n "$step" ] && [ -n "$total" ]; then
+		r="$r $step/$total"
+	fi
+
+	local w=""
+	local i=""
+	local s=""
+	local u=""
+	local c=""
+	local p=""
+
+	if [ "true" = "$inside_gitdir" ]; then
+		if [ "true" = "$bare_repo" ]; then
+			c="BARE:"
+		else
+			b="GIT_DIR!"
+		fi
+	elif [ "true" = "$inside_worktree" ]; then
+		if [ -n "${GIT_PS1_SHOWDIRTYSTATE-}" ] &&
+		   [ "$(git config --bool bash.showDirtyState)" != "false" ]
+		then
+			git diff --no-ext-diff --quiet --exit-code || w="*"
+			if [ -n "$short_sha" ]; then
+				git diff-index --cached --quiet HEAD -- || i="+"
+			else
+				i="#"
+			fi
+		fi
+		if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ] &&
+		   [ -r "$g/refs/stash" ]; then
+			s="$"
+		fi
+
+		if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ] &&
+		   [ "$(git config --bool bash.showUntrackedFiles)" != "false" ] &&
+		   git ls-files --others --exclude-standard --error-unmatch -- '*' >/dev/null 2>/dev/null
+		then
+			u="%${ZSH_VERSION+%}"
+		fi
+
+		if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
+			__git_ps1_show_upstream
+		fi
+	fi
+
+	local z="${GIT_PS1_STATESEPARATOR-" "}"
+
+	# NO color option unless in PROMPT_COMMAND mode
+	if [ $pcmode = yes ] && [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
+		__git_ps1_colorize_gitstring
+	fi
+
+	local f="$w$i$s$u"
+	local gitstring="$c${b##refs/heads/}${f:+$z$f}$r$p"
+
+	if [ $pcmode = yes ]; then
+		if [[ -n ${ZSH_VERSION-} ]]; then
+			gitstring=$(printf -- "$printf_format" "$gitstring")
+		else
+			printf -v gitstring -- "$printf_format" "$gitstring"
+		fi
+		PS1="$ps1pc_start$gitstring$ps1pc_end"
+	else
+		printf -- "$printf_format" "$gitstring"
+	fi
 }