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-rw-r--r--etc/completion/bash/guix139
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