Add a minimal implementation of _get_comp_words_by_ref so $ git show head:g <tab><tab> on bash 4 can complete paths within the head commit without requiring the bash_completion functions to be loaded. This is a follow-up to the previous patch (bash: get --pretty=m<tab> completion to work with bash v4). Based on bash-completion 2.x (commit bf763033, 2010-10-26) but tweaked for simplicity and to allow zsh to parse the code. Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx> Improved-by: SZEDER GÃbor <szeder@xxxxxxxxxx> --- contrib/completion/git-completion.bash | 118 +++++++++++++++++++++++++++++-- 1 files changed, 110 insertions(+), 8 deletions(-) diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index 68b68d0..1747091 100755 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -321,26 +321,128 @@ __gitcomp_1 () done } +# The following function is based on code from: +# +# bash_completion - programmable completion functions for bash 3.2+ +# +# Copyright  2006-2008, Ian Macdonald <ian@xxxxxxxxxxx> +#  2009-2010, Bash Completion Maintainers +# <bash-completion-devel@xxxxxxxxxxxxxxxxxxxxxxx> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# The latest version of this software can be obtained here: +# +# http://bash-completion.alioth.debian.org/ +# +# RELEASE: 2.x + +# This function can be used to access a tokenized list of words +# on the command line: +# +# __git_reassemble_comp_words_by_ref '=:' +# if test "${words_[cword_-1]}" = -w +# then +# ... +# fi +# +# The argument should be a collection of characters from the list of +# word completion separators (COMP_WORDBREAKS) to treat as ordinary +# characters. +# +# This is roughly equivalent to going back in time and setting +# COMP_WORDBREAKS to exclude those characters. The intent is to +# make option types like --date=<type> and <rev>:<path> easy to +# recognize by treating each shell word as a single token. +# +# It is best not to set COMP_WORDBREAKS directly because the value is +# shared with other completion scripts. By the time the completion +# function gets called, COMP_WORDS has already been populated so local +# changes to COMP_WORDBREAKS have no effect. +# +# Output: words_, cword_, cur_. + +__git_reassemble_comp_words_by_ref() +{ + local exclude i j first + # Which word separators to exclude? + exclude="${1//[^$COMP_WORDBREAKS]}" + cword_=$COMP_CWORD + if [ -z "$exclude" ]; then + words_=("${COMP_WORDS[@]}") + return + fi + # List of word completion separators has shrunk; + # re-assemble words to complete. + for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do + # Append each nonempty word consisting of just + # word separator characters to the current word. + first=t + while + [ $i -gt 0 ] && + [ -n "${COMP_WORDS[$i]}" ] && + # word consists of excluded word separators + [ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ] + do + # Attach to the previous token, + # unless the previous token is the command name. + if [ $j -ge 2 ] && [ -n "$first" ]; then + ((j--)) + fi + first= + words_[$j]=${words_[j]}${COMP_WORDS[i]} + if [ $i = $COMP_CWORD ]; then + cword_=$j + fi + if (($i < ${#COMP_WORDS[@]} - 1)); then + ((i++)) + else + # Done. + return + fi + done + words_[$j]=${words_[j]}${COMP_WORDS[i]} + if [ $i = $COMP_CWORD ]; then + cword_=$j + fi + done +} + if ! type _get_comp_words_by_ref >/dev/null 2>&1; then _get_comp_words_by_ref () { + local exclude cur_ words_ cword_ + if [ "$1" = "-n" ]; then + exclude=$2 + shift 2 + fi + __git_reassemble_comp_words_by_ref "$exclude" + cur_=${words_[cword_]} while [ $# -gt 0 ]; do case "$1" in cur) - cur=${COMP_WORDS[COMP_CWORD]} + cur=$cur_ ;; prev) - prev=${COMP_WORDS[COMP_CWORD-1]} + prev=${words_[$cword_-1]} ;; words) - words=("${COMP_WORDS[@]}") + words=("${words_[@]}") ;; cword) - cword=$COMP_CWORD - ;; - -n) - # assume COMP_WORDBREAKS is already set sanely - shift + cword=$cword_ ;; esac shift -- 1.7.3.3.573.g0bcfc -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html