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348 lines
9 KiB
Text
348 lines
9 KiB
Text
# GNU Guix --- Functional package management for GNU
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# Copyright © 2015-2022 Ludovic Courtès <ludo@gnu.org>
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# Copyright © 2021 Tobias Geerinck-Rice <me@tobias.gr>
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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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declare _guix_available_packages
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declare _guix_commands
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_guix_complete_command ()
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{
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local word_at_point="${COMP_WORDS[$COMP_CWORD]}"
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if [ -z "$_guix_commands" ]
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then
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# Cache the list of commands to speed things up.
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_guix_commands="$(${COMP_WORDS[0]} --help 2> /dev/null \
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| grep '^ ' \
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| sed '-es/^ *\([a-z-]\+\).*$/\1/g')"
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fi
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COMPREPLY+=($(compgen -W "$_guix_commands" -- "$word_at_point"))
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}
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_guix_complete_subcommand ()
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{
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local command="${COMP_WORDS[1]}"
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local subcommands="$(${COMP_WORDS[0]} $command --help 2> /dev/null \
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| grep '^ [a-z]' \
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| sed -e's/^ \+\([a-z-]\+\).*$/\1/g')"
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COMPREPLY+=($(compgen -W "$subcommands" -- "${COMP_WORDS[$COMP_CWORD]}"))
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}
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_guix_complete_available_package ()
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{
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local prefix="$1"
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if [ -z "$_guix_available_packages" ]
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then
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# Cache the complete list because it rarely changes and makes
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# completion much faster.
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_guix_available_packages="$(${COMP_WORDS[0]} package -A 2> /dev/null \
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| cut -f1)"
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fi
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COMPREPLY+=($(compgen -W "$_guix_available_packages" -- "$prefix"))
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}
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_guix_complete_installed_package ()
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{
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# Here we do not cache the list of installed packages because that
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# may change over time and the list is relatively small anyway.
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local prefix="$1"
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local packages="$(${COMP_WORDS[0]} package -I "^$prefix" 2> /dev/null \
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| cut -f1)"
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COMPREPLY+=($(compgen -W "$packages" -- "$prefix"))
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}
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_guix_complete_option ()
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{
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local command="${COMP_WORDS[$1]}"
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local subcommand="${COMP_WORDS[$(($1 + 1))]}"
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if [ $1 -eq 0 ]
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then
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command=""
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subcommand=""
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elif _guix_is_option "$subcommand"
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then
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subcommand=""
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fi
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local options="$(${COMP_WORDS[0]} $command $subcommand --help 2> /dev/null \
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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" -- "$2"))
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}
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_guix_is_option ()
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{
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case "$1" in
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-*)
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true
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;;
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*)
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false
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;;
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esac
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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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$result
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}
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_guix_is_dash_f ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-f" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--file=*|--install-from-file=*) true;;
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*) false;;
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esac }
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}
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_guix_is_dash_l ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-l" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--load=*) true;;
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*) false;;
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esac }
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}
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_guix_is_dash_L ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-L" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--load-path=*) true;;
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*) false;;
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esac }
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}
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_guix_is_dash_m ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-m" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--manifest=*) true;;
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*) false;;
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esac }
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}
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_guix_is_dash_C ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-C" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--channels=*) true;;
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*) false;;
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esac }
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}
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_guix_is_dash_p ()
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{
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[ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-p" ] \
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|| { case "${COMP_WORDS[$COMP_CWORD]}" in
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--profile=*) true;;
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*) false;;
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esac }
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}
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_guix_complete_file ()
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{
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# Let Readline complete file names.
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compopt -o default
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COMPREPLY=()
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}
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_guix_complete_available_package_or_store_file ()
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{
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_guix_complete_available_package "$@"
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# The current _guix_complete_file implementation doesn't compose (append to
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# COMPREPLY), so we suggest file names only if no package names matched.
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if [[ -z "$COMPREPLY" ]]
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then
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_guix_complete_file # TODO: restrict to store files
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fi
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}
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_guix_complete_pid ()
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{
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local pids="$(cd /proc; echo [0-9]*)"
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COMPREPLY+=($(compgen -W "$pids" -- "$1"))
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}
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_guix_complete ()
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{
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local word_count=${#COMP_WORDS[*]}
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local word_at_point="${COMP_WORDS[$COMP_CWORD]}"
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# Find the innermost command at point, e.g. "build" in the case of
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# "guix time-machine OPTIONS -- build<Tab>" -- but "time-machine" if
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# point is moved before "build".
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local command_index=0
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local command
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local word_index=0
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local word
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local expect_command="true"
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while [[ $((++word_index)) -le COMP_CWORD ]]
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do
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word="${COMP_WORDS[$word_index]}"
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if $expect_command
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then
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command_index=$word_index
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command="$word"
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expect_command="false"
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continue
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fi
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if [[ "$word" = "--" ]]
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then
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case "$command" in
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environment|shell)
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break
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;;
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time-machine)
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expect_command="true"
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;;
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esac
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fi
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done
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case $COMP_CWORD in
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$command_index)
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_guix_complete_command
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_guix_complete_option 0 "$word_at_point"
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;;
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*)
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if [[ "$command" = "package" ]]
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then
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if _guix_is_dash_L || _guix_is_dash_m || _guix_is_dash_p || _guix_is_dash_f
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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 [[ "$command" = "install" ]]
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then
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if _guix_is_dash_L || _guix_is_dash_m || _guix_is_dash_p
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then
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_guix_complete_file
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else
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_guix_complete_available_package "$word_at_point"
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fi
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elif [[ "$command" = "upgrade" || "$command" = "remove" ]]
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then
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if _guix_is_dash_L || _guix_is_dash_m || _guix_is_dash_p
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then
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_guix_complete_file
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else
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_guix_complete_installed_package "$word_at_point"
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fi
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elif [[ "$command" = "build" ]]
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then
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if _guix_is_dash_L || _guix_is_dash_m || _guix_is_dash_f
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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_or_store_file "$word_at_point"
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fi
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elif [[ "$command" = "environment" || "$command" = "shell" ]]
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then
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if _guix_is_dash_f && [[ "$command" = "shell" ]]
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then
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# The otherwise identical ‘guix environment’ lacks the ‘-f’ option.
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_guix_complete_file
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elif _guix_is_dash_L || _guix_is_dash_m || _guix_is_dash_p || _guix_is_dash_l
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then
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_guix_complete_file
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elif _guix_is_option "$word_at_point"
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then
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_guix_complete_option "$command_index" "$word_at_point"
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else
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_guix_complete_available_package "$word_at_point"
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fi
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elif [[ "$command" = "download" || "$command" = "gc" || "$command" = "hash" ]]
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then
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_guix_complete_file
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elif [[ "$command" = "size" ]]
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then
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_guix_complete_available_package_or_store_file "$word_at_point"
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elif [[ "$command" = "system" || "$command" = "home" ]]
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then
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case $((COMP_CWORD - command_index)) in
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1) _guix_complete_subcommand;;
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*) _guix_complete_file;; # TODO: restrict to *.scm
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esac
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elif [[ "$command" = "pull" ]]
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then
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if _guix_is_dash_C || _guix_is_dash_p
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then
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_guix_complete_file
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fi
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elif [[ "$command" = "time-machine" ]]
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then
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if _guix_is_dash_C
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then
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_guix_complete_file
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else
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_guix_complete_option "$command_index" "$word_at_point"
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fi
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elif [[ "$command" = "container" ]]
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then
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case $((COMP_CWORD - command_index)) in
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1) _guix_complete_subcommand;;
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2) _guix_complete_pid "$word_at_point";;
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*) _guix_complete_file;;
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esac
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elif [[ "$command" = "import" ]]
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then
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_guix_complete_subcommand
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elif [[ "$command" = "weather" ]]
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then
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if _guix_is_dash_m
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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 "$word_at_point"
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fi
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else
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_guix_complete_available_package "$word_at_point"
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fi
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;;
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esac
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if [[ -z "$COMPREPLY" && COMP_CWORD -gt command_index ]] &&
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_guix_is_option "$word_at_point"
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then
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_guix_complete_option "$command_index" "$word_at_point"
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fi
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}
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complete -F _guix_complete guix
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