Add Bash completion file.
* etc/completion/bash/guix: New file. * Makefile.am (dist_bashcompletion_DATA): New variable. * configure.ac: Add --with-bash-completion-dir.
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Ludovic Courtès
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@ -240,6 +240,9 @@ tests/guix-gc.log: \
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# Public key used to sign substitutes from hydra.gnu.org.
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dist_pkgdata_DATA = hydra.gnu.org.pub
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# Bash completion file.
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dist_bashcompletion_DATA = etc/completion/bash/guix
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EXTRA_DIST = \
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HACKING \
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ROADMAP \
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@ -34,6 +34,13 @@ AC_ARG_WITH(store-dir,
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[storedir="/gnu/store"])
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AC_SUBST(storedir)
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AC_ARG_WITH([bash-completion-dir],
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AC_HELP_STRING([--with-bash-completion-dir=DIR],
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[name of the Bash completion directory]),
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[bashcompletiondir="$withval"],
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[bashcompletiondir='${sysconfdir}/bash_completion.d'])
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AC_SUBST([bashcompletiondir])
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dnl Better be verbose.
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AC_MSG_CHECKING([for the store directory])
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AC_MSG_RESULT([$storedir])
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@ -0,0 +1,139 @@
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# GNU Guix --- Functional package management for GNU
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# Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
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#
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# This file is part of GNU Guix.
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#
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# GNU Guix is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or (at
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# your option) any later version.
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#
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# GNU Guix is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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# Bash completion for Guix commands.
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_guix_complete_available_package ()
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{
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local prefix="$1"
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local packages="$(${COMP_WORDS[0]} package -A "^$prefix" | cut -f1)"
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COMPREPLY=($(compgen -W "$packages" -- "$prefix"))
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}
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_guix_complete_installed_package ()
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{
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local prefix="$1"
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local packages="$(${COMP_WORDS[0]} package -I "^$prefix" | cut -f1)"
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COMPREPLY=($(compgen -W "$packages" -- "$prefix"))
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}
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_guix_complete_option ()
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{
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local options="$(${COMP_WORDS[0]} ${COMP_WORDS[1]} --help \
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| grep '^ -' \
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| sed -e's/^.*--\([a-zA-Z0-9_-]\+\)\(=\?\).*/--\1\2/g' )"
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compopt -o nospace
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COMPREPLY=($(compgen -W "$options" -- "${COMP_WORDS[$word_count - 1]}"))
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}
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_guix_is_command ()
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{
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local word
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local result="false"
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for word in ${COMP_WORDS[*]}
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do
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if [ "$word" = "$1" ]
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then
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result=true
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break
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fi
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done
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$result
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}
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_guix_is_removing ()
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{
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local word
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local result="false"
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for word in ${COMP_WORDS[*]}
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do
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case "$word" in
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--remove|--remove=*|-r)
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result=true
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break
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;;
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esac
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done
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$result
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}
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_guix_is_dash_L ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-L" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--load-path=*) true;;
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*) false;;
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esac }
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}
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_guix_complete_file ()
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{
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# Let Readline complete file names.
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compopt -o default
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COMPREPLY=()
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}
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_guix_complete ()
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{
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local word_count=${#COMP_WORDS[*]}
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local word_at_point="${COMP_WORDS[$COMP_CWORD]}"
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if [ "$COMP_CWORD" -gt 1 ]
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then
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case "$word_at_point" in
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-*)
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_guix_complete_option "$word_at_point"
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return
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;;
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esac
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fi
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case $COMP_CWORD in
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1)
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local subcommands="$(guix --help | grep '^ ' | cut -c 2-)"
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COMPREPLY=($(compgen -W "$subcommands" -- "$word_at_point"))
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;;
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*)
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if _guix_is_command "package"
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then
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if _guix_is_dash_L
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then
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_guix_complete_file
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elif _guix_is_removing
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then
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_guix_complete_installed_package "$word_at_point"
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else
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_guix_complete_available_package "$word_at_point"
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fi
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elif _guix_is_command "system"
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then
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_guix_complete_file # TODO: complete sub-commands
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elif _guix_is_command "hash"
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then
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_guix_complete_file
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elif _guix_is_command "import" # TODO: complete sub-commands
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then
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_guix_complete_file
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else
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_guix_complete_available_package "$word_at_point"
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fi
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;;
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esac
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}
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complete -F _guix_complete guix
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