diff options
Diffstat (limited to 'etc/completion/bash')
| -rw-r--r-- | etc/completion/bash/guix | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/etc/completion/bash/guix b/etc/completion/bash/guix new file mode 100644 index 0000000000..2a3fa1201e --- /dev/null +++ b/etc/completion/bash/guix @@ -0,0 +1,139 @@ +# GNU Guix --- Functional package management for GNU +# Copyright © 2015 Ludovic Courtès <ludo@gnu.org> +# +# This file is part of GNU Guix. +# +# GNU Guix 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 3 of the License, or (at +# your option) any later version. +# +# GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +# Bash completion for Guix commands. + +_guix_complete_available_package () +{ + local prefix="$1" + local packages="$(${COMP_WORDS[0]} package -A "^$prefix" | cut -f1)" + COMPREPLY=($(compgen -W "$packages" -- "$prefix")) +} + +_guix_complete_installed_package () +{ + local prefix="$1" + local packages="$(${COMP_WORDS[0]} package -I "^$prefix" | cut -f1)" + COMPREPLY=($(compgen -W "$packages" -- "$prefix")) +} + +_guix_complete_option () +{ + local options="$(${COMP_WORDS[0]} ${COMP_WORDS[1]} --help \ + | grep '^ -' \ + | sed -e's/^.*--\([a-zA-Z0-9_-]\+\)\(=\?\).*/--\1\2/g' )" + compopt -o nospace + COMPREPLY=($(compgen -W "$options" -- "${COMP_WORDS[$word_count - 1]}")) +} + +_guix_is_command () +{ + local word + local result="false" + for word in ${COMP_WORDS[*]} + do + if [ "$word" = "$1" ] + then + result=true + break + fi + done + $result +} + +_guix_is_removing () +{ + local word + local result="false" + for word in ${COMP_WORDS[*]} + do + case "$word" in + --remove|--remove=*|-r) + result=true + break + ;; + esac + done + $result +} + +_guix_is_dash_L () +{ + [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-L" ] \ + || { case "${COMP_WORDS[$COMP_CWORD]}" in + --load-path=*) true;; + *) false;; + esac } +} + +_guix_complete_file () +{ + # Let Readline complete file names. + compopt -o default + COMPREPLY=() +} + +_guix_complete () +{ + local word_count=${#COMP_WORDS[*]} + local word_at_point="${COMP_WORDS[$COMP_CWORD]}" + + if [ "$COMP_CWORD" -gt 1 ] + then + case "$word_at_point" in + -*) + _guix_complete_option "$word_at_point" + return + ;; + esac + fi + + case $COMP_CWORD in + 1) + local subcommands="$(guix --help | grep '^ ' | cut -c 2-)" + COMPREPLY=($(compgen -W "$subcommands" -- "$word_at_point")) + ;; + *) + if _guix_is_command "package" + then + if _guix_is_dash_L + then + _guix_complete_file + elif _guix_is_removing + then + _guix_complete_installed_package "$word_at_point" + else + _guix_complete_available_package "$word_at_point" + fi + elif _guix_is_command "system" + then + _guix_complete_file # TODO: complete sub-commands + elif _guix_is_command "hash" + then + _guix_complete_file + elif _guix_is_command "import" # TODO: complete sub-commands + then + _guix_complete_file + else + _guix_complete_available_package "$word_at_point" + fi + ;; + esac +} + +complete -F _guix_complete guix |