diff --git a/git-completion.bash b/git-completion.bash index c609f19..9147fba 100644 --- a/git-completion.bash +++ b/git-completion.bash @@ -1,6 +1,4 @@ -#!bash -# -# bash completion support for core Git. +# bash/zsh completion support for core Git. # # Copyright (C) 2006,2007 Shawn O. Pearce # Conceptually based on gitcompletion (http://gitweb.hawaga.org.uk/). @@ -12,83 +10,81 @@ # *) local and remote tag names # *) .git/remotes file names # *) git 'subcommands' +# *) git email aliases for git-send-email # *) 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) Added the following line to your .bashrc: -# source ~/.git-completion.sh -# -# 3) Consider changing your PS1 to also show the current branch: -# PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ ' -# -# The argument to __git_ps1 will be displayed only if you -# are currently in a git repository. The %s token will be -# the name of the current branch. -# -# In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty -# value, unstaged (*) and staged (+) changes will be shown next -# to the branch name. You can configure this per-repository -# with the bash.showDirtyState variable, which defaults to true -# once GIT_PS1_SHOWDIRTYSTATE is enabled. +# 1) Copy this file to somewhere (e.g. ~/.git-completion.bash). +# 2) Add the following line to your .bashrc/.zshrc: +# source ~/.git-completion.bash +# 3) Consider changing your PS1 to also show the current branch, +# see git-prompt.sh for details. # -# You can also see if currently something is stashed, by setting -# GIT_PS1_SHOWSTASHSTATE to a nonempty value. If something is stashed, -# then a '$' will be shown next to the branch name. +# If you use complex aliases of form '!f() { ... }; f', you can use the null +# command ':' as the first command in the function body to declare the desired +# completion style. For example '!f() { : git commit ; ... }; f' will +# tell the completion to use commit completion. This also works with aliases +# of form "!sh -c '...'". For example, "!sh -c ': git commit ; ... '". # -# 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. +# Compatible with bash 3.2.57. # -# 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. +# You can set the following environment variables to influence the behavior of +# the completion routines: # +# GIT_COMPLETION_CHECKOUT_NO_GUESS # -# To submit patches: +# When set to "1", do not include "DWIM" suggestions in git-checkout +# and git-switch completion (e.g., completing "foo" when "origin/foo" +# exists). # -# *) Read Documentation/SubmittingPatches -# *) Send all patches to the current maintainer: -# -# "Shawn O. Pearce" -# -# *) Always CC the Git mailing list: -# -# git@vger.kernel.org +# GIT_COMPLETION_SHOW_ALL # +# When set to "1" suggest all options, including options which are +# typically hidden (e.g. '--allow-empty' for 'git commit'). case "$COMP_WORDBREAKS" in *:*) : great ;; *) COMP_WORDBREAKS="$COMP_WORDBREAKS:" esac +# Discovers the path to the git repository taking any '--git-dir=' and +# '-C ' options into account and stores it in the $__git_repo_path +# variable. +__git_find_repo_path () +{ + if [ -n "${__git_repo_path-}" ]; then + # we already know where it is + return + fi + + if [ -n "${__git_C_args-}" ]; then + __git_repo_path="$(git "${__git_C_args[@]}" \ + ${__git_dir:+--git-dir="$__git_dir"} \ + rev-parse --absolute-git-dir 2>/dev/null)" + elif [ -n "${__git_dir-}" ]; then + test -d "$__git_dir" && + __git_repo_path="$__git_dir" + elif [ -n "${GIT_DIR-}" ]; then + test -d "${GIT_DIR-}" && + __git_repo_path="$GIT_DIR" + elif [ -d .git ]; then + __git_repo_path=.git + else + __git_repo_path="$(git rev-parse --git-dir 2>/dev/null)" + fi +} + +# Deprecated: use __git_find_repo_path() and $__git_repo_path instead # __gitdir accepts 0 or 1 arguments (i.e., location) # returns location of .git repo __gitdir () { if [ -z "${1-}" ]; then - if [ -n "${__git_dir-}" ]; then - echo "$__git_dir" - elif [ -d .git ]; then - echo .git - else - git rev-parse --git-dir 2>/dev/null - fi + __git_find_repo_path || return 1 + echo "$__git_repo_path" elif [ -d "$1/.git" ]; then echo "$1/.git" else @@ -96,326 +92,764 @@ __gitdir () fi } -# stores the divergence from upstream in $p -# used by GIT_PS1_SHOWUPSTREAM -__git_ps1_show_upstream () +# Runs git with all the options given as argument, respecting any +# '--git-dir=' and '-C ' options present on the command line +__git () { - local key value - local svn_remote=() svn_url_pattern count n - local upstream=git legacy="" verbose="" + git ${__git_C_args:+"${__git_C_args[@]}"} \ + ${__git_dir:+--git-dir="$__git_dir"} "$@" 2>/dev/null +} - # get some config options from git-config - while read key value; do - case "$key" in - bash.showupstream) - GIT_PS1_SHOWUPSTREAM="$value" - if [[ -z "${GIT_PS1_SHOWUPSTREAM}" ]]; then - p="" - return - fi +# Removes backslash escaping, single quotes and double quotes from a word, +# stores the result in the variable $dequoted_word. +# 1: The word to dequote. +__git_dequote () +{ + local rest="$1" len ch + + dequoted_word="" + + while test -n "$rest"; do + len=${#dequoted_word} + dequoted_word="$dequoted_word${rest%%[\\\'\"]*}" + rest="${rest:$((${#dequoted_word}-$len))}" + + case "${rest:0:1}" in + \\) + ch="${rest:1:1}" + case "$ch" in + $'\n') + ;; + *) + dequoted_word="$dequoted_word$ch" + ;; + esac + rest="${rest:2}" ;; - svn-remote.*.url) - svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value" - svn_url_pattern+="\\|$value" - upstream=svn+git # default upstream is SVN if available, else git + \') + rest="${rest:1}" + len=${#dequoted_word} + dequoted_word="$dequoted_word${rest%%\'*}" + rest="${rest:$((${#dequoted_word}-$len+1))}" + ;; + \") + rest="${rest:1}" + while test -n "$rest" ; do + len=${#dequoted_word} + dequoted_word="$dequoted_word${rest%%[\\\"]*}" + rest="${rest:$((${#dequoted_word}-$len))}" + case "${rest:0:1}" in + \\) + ch="${rest:1:1}" + case "$ch" in + \"|\\|\$|\`) + dequoted_word="$dequoted_word$ch" + ;; + $'\n') + ;; + *) + dequoted_word="$dequoted_word\\$ch" + ;; + esac + rest="${rest:2}" + ;; + \") + rest="${rest:1}" + break + ;; + esac + done ;; - esac - done < <(git config -z --get-regexp '^(svn-remote\..*\.url|bash\.showupstream)$' 2>/dev/null | tr '\0\n' '\n ') - - # 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: \(${svn_url_pattern:2}\)" 2>/dev/null)) - if [[ 0 -ne ${#svn_upstream[@]} ]]; then - svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]} - svn_upstream=${svn_upstream%@*} - for ((n=1; "$n" <= "${#svn_remote[@]}"; ++n)); do - svn_upstream=${svn_upstream#${svn_remote[$n]}} - done +# The following function is based on code from: +# +# bash_completion - programmable completion functions for bash 3.2+ +# +# Copyright © 2006-2008, Ian Macdonald +# © 2009-2010, Bash Completion Maintainers +# +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# The latest version of this software can be obtained here: +# +# http://bash-completion.alioth.debian.org/ +# +# RELEASE: 2.x - if [[ -z "$svn_upstream" ]]; then - # default branch name for checkouts with no layout: - upstream=${GIT_SVN_ID:-git-svn} +# This function can be used to access a tokenized list of words +# on the command line: +# +# __git_reassemble_comp_words_by_ref '=:' +# if test "${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= and : 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 < ${#COMP_WORDS[@]} - 1)); then + ((i++)) else - upstream=${svn_upstream#/} + # Done. + return fi - elif [[ "svn+git" = "$upstream" ]]; then - upstream="@{upstream}" + done + words_[$j]=${words_[j]}${COMP_WORDS[i]} + if [ $i = $COMP_CWORD ]; then + cword_=$j fi - ;; - esac + done +} - # 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 - "<"*) let ++behind - ;; - *) let ++ahead - ;; - esac - done - count="$behind $ahead" - else - count="" - fi +if ! type _get_comp_words_by_ref >/dev/null 2>&1; then +_get_comp_words_by_ref () +{ + local exclude cur_ words_ cword_ + if [ "$1" = "-n" ]; then + exclude=$2 + shift 2 fi - - # calculate the result - if [[ -z "$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% *}" ;; + __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 - fi - + shift + done } +fi + +# Fills the COMPREPLY array with prefiltered words without any additional +# processing. +# Callers must take care of providing only words that match the current word +# to be completed and adding any prefix and/or suffix (trailing space!), if +# necessary. +# 1: List of newline-separated matching completion words, complete with +# prefix and suffix. +__gitcomp_direct () +{ + local IFS=$'\n' + COMPREPLY=($1) +} -# __git_ps1 accepts 0 or 1 arguments (i.e., format string) -# returns text to add to bash PS1 prompt (includes branch name) -__git_ps1 () +# Similar to __gitcomp_direct, but appends to COMPREPLY instead. +# Callers must take care of providing only words that match the current word +# to be completed and adding any prefix and/or suffix (trailing space!), if +# necessary. +# 1: List of newline-separated matching completion words, complete with +# prefix and suffix. +__gitcomp_direct_append () { - local g="$(__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/BISECT_LOG" ]; then - r="|BISECTING" - fi + local IFS=$'\n' - b="$(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 --exact-match HEAD ;; - esac 2>/dev/null)" || - - b="$(cut -c1-7 "$g/HEAD" 2>/dev/null)..." || - b="unknown" - b="($b)" - } + COMPREPLY+=($1) +} + +__gitcompappend () +{ + local x i=${#COMPREPLY[@]} + for x in $1; do + if [[ "$x" == "$3"* ]]; then + COMPREPLY[i++]="$2$x$4" fi + done +} - local w="" - local i="" - local s="" - local u="" - local c="" - local p="" +__gitcompadd () +{ + COMPREPLY=() + __gitcompappend "$@" +} - 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!" +# 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). +# 3: Generate possible completion matches for this word (optional). +# 4: A suffix to be appended to each possible completion word (optional). +__gitcomp () +{ + local cur_="${3-$cur}" + + case "$cur_" in + --*=) + ;; + --no-*) + local c i=0 IFS=$' \t\n' + for c in $1; do + if [[ $c == "--" ]]; then + continue fi - elif [ "true" = "$(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 + c="$c${4-}" + if [[ $c == "$cur_"* ]]; then + case $c in + --*=|*.) ;; + *) c="$c " ;; + esac + COMPREPLY[i++]="${2-}$c" + fi + done + ;; + *) + local c i=0 IFS=$' \t\n' + for c in $1; do + if [[ $c == "--" ]]; then + c="--no-...${4-}" + if [[ $c == "$cur_"* ]]; then + COMPREPLY[i++]="${2-}$c " fi + break fi - if [ -n "${GIT_PS1_SHOWSTASHSTATE-}" ]; then - git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$" + c="$c${4-}" + if [[ $c == "$cur_"* ]]; then + case $c in + *=|*.) ;; + *) c="$c " ;; + esac + COMPREPLY[i++]="${2-}$c" fi + done + ;; + esac +} - if [ -n "${GIT_PS1_SHOWUNTRACKEDFILES-}" ]; then - if [ -n "$(git ls-files --others --exclude-standard)" ]; then - u="%" - fi - fi +# Clear the variables caching builtins' options when (re-)sourcing +# the completion script. +if [[ -n ${ZSH_VERSION-} ]]; then + unset ${(M)${(k)parameters[@]}:#__gitcomp_builtin_*} 2>/dev/null +else + unset $(compgen -v __gitcomp_builtin_) +fi - if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then - __git_ps1_show_upstream - fi - fi +# This function is equivalent to +# +# __gitcomp "$(git xxx --git-completion-helper) ..." +# +# except that the output is cached. Accept 1-3 arguments: +# 1: the git command to execute, this is also the cache key +# 2: extra options to be added on top (e.g. negative forms) +# 3: options to be excluded +__gitcomp_builtin () +{ + # spaces must be replaced with underscore for multi-word + # commands, e.g. "git remote add" becomes remote_add. + local cmd="$1" + local incl="${2-}" + local excl="${3-}" + + local var=__gitcomp_builtin_"${cmd/-/_}" + local options + eval "options=\${$var-}" + + local completion_helper + if [ "$GIT_COMPLETION_SHOW_ALL" = "1" ]; then + completion_helper="--git-completion-helper-all" + else + completion_helper="--git-completion-helper" + fi - local f="$w$i$s$u" - printf "${1:- (%s)}" "$c${b##refs/heads/}${f:+ $f}$r$p" + if [ -z "$options" ]; then + # leading and trailing spaces are significant to make + # option removal work correctly. + options=" $incl $(__git ${cmd/_/ } $completion_helper) " || return + + for i in $excl; do + options="${options/ $i / }" + done + eval "$var=\"$options\"" fi + + __gitcomp "$options" } -# __gitcomp_1 requires 2 arguments -__gitcomp_1 () +# Variation of __gitcomp_nl () that appends to the existing list of +# completion candidates, COMPREPLY. +__gitcomp_nl_append () { - local c IFS=' '$'\t'$'\n' - for c in $1; do - case "$c$2" in - --*=*) printf %s$'\n' "$c$2" ;; - *.) printf %s$'\n' "$c$2" ;; - *) printf %s$'\n' "$c$2 " ;; - esac - done + local IFS=$'\n' + __gitcompappend "$1" "${2-}" "${3-$cur}" "${4- }" } -# __gitcomp accepts 1, 2, 3, or 4 arguments -# generates completion reply with compgen -__gitcomp () +# Generates completion reply from newline-separated possible completion words +# by appending a space to all of them. +# It accepts 1 to 4 arguments: +# 1: List of possible completion words, separated by a single newline. +# 2: A prefix to be added to each possible completion word (optional). +# 3: Generate possible completion matches for this word (optional). +# 4: A suffix to be appended to each possible completion word instead of +# the default space (optional). If specified but empty, nothing is +# appended. +__gitcomp_nl () { - local cur="${COMP_WORDS[COMP_CWORD]}" - if [ $# -gt 2 ]; then - cur="$3" + COMPREPLY=() + __gitcomp_nl_append "$@" +} + +# Fills the COMPREPLY array with prefiltered paths without any additional +# processing. +# Callers must take care of providing only paths that match the current path +# to be completed and adding any prefix path components, if necessary. +# 1: List of newline-separated matching paths, complete with all prefix +# path components. +__gitcomp_file_direct () +{ + local IFS=$'\n' + + COMPREPLY=($1) + + # use a hack to enable file mode in bash < 4 + compopt -o filenames +o nospace 2>/dev/null || + compgen -f /non-existing-dir/ >/dev/null || + true +} + +# Generates completion reply with compgen from newline-separated possible +# completion filenames. +# It accepts 1 to 3 arguments: +# 1: List of possible completion filenames, separated by a single newline. +# 2: A directory prefix to be added to each possible completion filename +# (optional). +# 3: Generate possible completion matches for this word (optional). +__gitcomp_file () +{ + local IFS=$'\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 || + true +} + +# 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 () +{ + if [ "$2" == "--committable" ]; then + __git -C "$1" -c core.quotePath=false diff-index \ + --name-only --relative HEAD -- "${3//\\/\\\\}*" + else + # NOTE: $2 is not quoted in order to support multiple options + __git -C "$1" -c core.quotePath=false ls-files \ + --exclude-standard $2 -- "${3//\\/\\\\}*" fi - case "$cur" in - --*=) - COMPREPLY=() +} + + +# __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. +# 3: List only paths matching this path component (optional). +__git_index_files () +{ + local root="$2" match="$3" + + __git_ls_files_helper "$root" "$1" "${match:-?}" | + awk -F / -v pfx="${2//\\/\\\\}" '{ + paths[$1] = 1 + } + END { + for (p in paths) { + if (substr(p, 1, 1) != "\"") { + # No special characters, easy! + print pfx p + continue + } + + # The path is quoted. + p = dequote(p) + if (p == "") + continue + + # Even when a directory name itself does not contain + # any special characters, it will still be quoted if + # any of its (stripped) trailing path components do. + # Because of this we may have seen the same directory + # both quoted and unquoted. + if (p in paths) + # We have seen the same directory unquoted, + # skip it. + continue + else + print pfx p + } + } + function dequote(p, bs_idx, out, esc, esc_idx, dec) { + # Skip opening double quote. + p = substr(p, 2) + + # Interpret backslash escape sequences. + while ((bs_idx = index(p, "\\")) != 0) { + out = out substr(p, 1, bs_idx - 1) + esc = substr(p, bs_idx + 1, 1) + p = substr(p, bs_idx + 2) + + if ((esc_idx = index("abtvfr\"\\", esc)) != 0) { + # C-style one-character escape sequence. + out = out substr("\a\b\t\v\f\r\"\\", + esc_idx, 1) + } else if (esc == "n") { + # Uh-oh, a newline character. + # We cannot reliably put a pathname + # containing a newline into COMPREPLY, + # and the newline would create a mess. + # Skip this path. + return "" + } else { + # Must be a \nnn octal value, then. + dec = esc * 64 + \ + substr(p, 1, 1) * 8 + \ + substr(p, 2, 1) + out = out sprintf("%c", dec) + p = substr(p, 3) + } + } + # Drop closing double quote, if there is one. + # (There is not any if this is a directory, as it was + # already stripped with the trailing path components.) + if (substr(p, length(p), 1) == "\"") + out = out substr(p, 1, length(p) - 1) + else + out = out p + + return out + }' +} + +# __git_complete_index_file requires 1 argument: +# 1: the options to pass to ls-file +# +# The exception is --committable, which finds the files appropriate commit. +__git_complete_index_file () +{ + local dequoted_word pfx="" cur_ + + __git_dequote "$cur" + + case "$dequoted_word" in + ?*/*) + pfx="${dequoted_word%/*}/" + cur_="${dequoted_word##*/}" ;; *) - local IFS=$'\n' - COMPREPLY=($(compgen -P "${2-}" \ - -W "$(__gitcomp_1 "${1-}" "${4-}")" \ - -- "$cur")) - ;; + cur_="$dequoted_word" esac + + __gitcomp_file_direct "$(__git_index_files "$1" "$pfx" "$cur_")" } -# __git_heads accepts 0 or 1 arguments (to pass to __gitdir) +# Lists branches from the local repository. +# 1: A prefix to be added to each listed branch (optional). +# 2: List only branches matching this word (optional; list all branches if +# unset or empty). +# 3: A suffix to be appended to each listed branch (optional). __git_heads () { - local cmd i is_hash=y dir="$(__gitdir "${1-}")" - if [ -d "$dir" ]; then - git --git-dir="$dir" for-each-ref --format='%(refname:short)' \ - refs/heads - return - fi - for i in $(git ls-remote "${1-}" 2>/dev/null); do - case "$is_hash,$i" in - y,*) is_hash=n ;; - n,*^{}) is_hash=y ;; - n,refs/heads/*) is_hash=y; echo "${i#refs/heads/}" ;; - n,*) is_hash=y; echo "$i" ;; - esac - done + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + + __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \ + "refs/heads/$cur_*" "refs/heads/$cur_*/**" } -# __git_tags accepts 0 or 1 arguments (to pass to __gitdir) -__git_tags () +# Lists branches from remote repositories. +# 1: A prefix to be added to each listed branch (optional). +# 2: List only branches matching this word (optional; list all branches if +# unset or empty). +# 3: A suffix to be appended to each listed branch (optional). +__git_remote_heads () { - local cmd i is_hash=y dir="$(__gitdir "${1-}")" - if [ -d "$dir" ]; then - git --git-dir="$dir" for-each-ref --format='%(refname:short)' \ - refs/tags - return - fi - for i in $(git ls-remote "${1-}" 2>/dev/null); do - case "$is_hash,$i" in - y,*) is_hash=n ;; - n,*^{}) is_hash=y ;; - n,refs/tags/*) is_hash=y; echo "${i#refs/tags/}" ;; - n,*) is_hash=y; echo "$i" ;; - esac - done + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + + __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \ + "refs/remotes/$cur_*" "refs/remotes/$cur_*/**" } -# __git_refs accepts 0 or 1 arguments (to pass to __gitdir) +# Lists tags from the local repository. +# Accepts the same positional parameters as __git_heads() above. +__git_tags () +{ + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + + __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \ + "refs/tags/$cur_*" "refs/tags/$cur_*/**" +} + +# List unique branches from refs/remotes used for 'git checkout' and 'git +# switch' tracking DWIMery. +# 1: A prefix to be added to each listed branch (optional) +# 2: List only branches matching this word (optional; list all branches if +# unset or empty). +# 3: A suffix to be appended to each listed branch (optional). +__git_dwim_remote_heads () +{ + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers + + # employ the heuristic used by git checkout and git switch + # Try to find a remote branch that cur_es the completion word + # but only output if the branch name is unique + __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \ + --sort="refname:strip=3" \ + "refs/remotes/*/$cur_*" "refs/remotes/*/$cur_*/**" | \ + uniq -u +} + +# Lists refs from the local (by default) or from a remote repository. +# It accepts 0, 1 or 2 arguments: +# 1: The remote to list refs from (optional; ignored, if set but empty). +# Can be the name of a configured remote, a path, or a URL. +# 2: In addition to local refs, list unique branches from refs/remotes/ for +# 'git checkout's tracking DWIMery (optional; ignored, if set but empty). +# 3: A prefix to be added to each listed ref (optional). +# 4: List only refs matching this word (optional; list all refs if unset or +# empty). +# 5: A suffix to be appended to each listed ref (optional; ignored, if set +# but empty). +# +# Use __git_complete_refs() instead. __git_refs () { - local i is_hash=y dir="$(__gitdir "${1-}")" - local cur="${COMP_WORDS[COMP_CWORD]}" format refs - if [ -d "$dir" ]; then - case "$cur" in + local i hash dir track="${2-}" + local list_refs_from=path remote="${1-}" + local format refs + local pfx="${3-}" cur_="${4-$cur}" sfx="${5-}" + local match="${4-}" + local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers + + __git_find_repo_path + dir="$__git_repo_path" + + if [ -z "$remote" ]; then + if [ -z "$dir" ]; then + return + fi + else + if __git_is_configured_remote "$remote"; then + # configured remote takes precedence over a + # local directory with the same name + list_refs_from=remote + elif [ -d "$remote/.git" ]; then + dir="$remote/.git" + elif [ -d "$remote" ]; then + dir="$remote" + else + list_refs_from=url + fi + fi + + if [ "$list_refs_from" = path ]; then + if [[ "$cur_" == ^* ]]; then + pfx="$pfx^" + fer_pfx="$fer_pfx^" + cur_=${cur_#^} + match=${match#^} + fi + case "$cur_" in refs|refs/*) format="refname" - refs="${cur%/*}" + refs=("$match*" "$match*/**") + track="" ;; *) - for i in HEAD FETCH_HEAD ORIG_HEAD MERGE_HEAD; do - if [ -e "$dir/$i" ]; then echo $i; fi + for i in HEAD FETCH_HEAD ORIG_HEAD MERGE_HEAD REBASE_HEAD; do + case "$i" in + $match*) + if [ -e "$dir/$i" ]; then + echo "$pfx$i$sfx" + fi + ;; + esac done - format="refname:short" - refs="refs/tags refs/heads refs/remotes" + format="refname:strip=2" + refs=("refs/tags/$match*" "refs/tags/$match*/**" + "refs/heads/$match*" "refs/heads/$match*/**" + "refs/remotes/$match*" "refs/remotes/$match*/**") ;; esac - git --git-dir="$dir" for-each-ref --format="%($format)" \ - $refs + __git_dir="$dir" __git for-each-ref --format="$fer_pfx%($format)$sfx" \ + "${refs[@]}" + if [ -n "$track" ]; then + __git_dwim_remote_heads "$pfx" "$match" "$sfx" + fi return fi - for i in $(git ls-remote "$dir" 2>/dev/null); do - case "$is_hash,$i" in - y,*) is_hash=n ;; - n,*^{}) is_hash=y ;; - n,refs/tags/*) is_hash=y; echo "${i#refs/tags/}" ;; - n,refs/heads/*) is_hash=y; echo "${i#refs/heads/}" ;; - n,refs/remotes/*) is_hash=y; echo "${i#refs/remotes/}" ;; - n,*) is_hash=y; echo "$i" ;; + case "$cur_" in + refs|refs/*) + __git ls-remote "$remote" "$match*" | \ + while read -r hash i; do + case "$i" in + *^{}) ;; + *) echo "$pfx$i$sfx" ;; + esac + done + ;; + *) + if [ "$list_refs_from" = remote ]; then + case "HEAD" in + $match*) echo "${pfx}HEAD$sfx" ;; + esac + __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \ + "refs/remotes/$remote/$match*" \ + "refs/remotes/$remote/$match*/**" + else + local query_symref + case "HEAD" in + $match*) query_symref="HEAD" ;; + esac + __git ls-remote "$remote" $query_symref \ + "refs/tags/$match*" "refs/heads/$match*" \ + "refs/remotes/$match*" | + while read -r hash i; do + case "$i" in + *^{}) ;; + refs/*) echo "$pfx${i#refs/*/}$sfx" ;; + *) echo "$pfx$i$sfx" ;; # symbolic refs + esac + done + fi + ;; + esac +} + +# Completes refs, short and long, local and remote, symbolic and pseudo. +# +# Usage: __git_complete_refs [