Add bash completion for xbps-*

data/Makefile

@@ -19,6 +19,12 @@ install:
 	install -m644 repod-main.conf $(DESTDIR)/$(PREFIX)/share/xbps/repo.d/00-main.conf
 	install -d $(DESTDIR)/$(PREFIX)/share/zsh/site-functions
 	install -m644 _xbps* $(DESTDIR)/$(PREFIX)/share/zsh/site-functions
+	install -d $(DESTDIR)/$(PREFIX)/share/bash-completion/completions
+	install -m644 xbps.bash $(DESTDIR)/$(PREFIX)/share/bash-completion/completions/xbps
+	for file in xbps-checkvers xbps-create xbps-dgraph xbps-install \
+		xbps-pkgdb xbps-query xbps-reconfigure xbps-remove xbps-rindex; do \
+		ln -s xbps $(DESTDIR)/$(PREFIX)/share/bash-completion/completions/$$file; \
+	done
 
 .PHONY: uninstall
 uninstall:

data/xbps.bash

@@ -0,0 +1,91 @@
+_xbps_parse_help() {
+	local IFS line word
+
+	$1 --help 2>&1 | while IFS=$'\n' read -r line; do
+		[[ $line == *([ $'\t'])-* ]] || continue
+
+		IFS=$' \t,='
+		for word in $line; do
+			[[ $word == -* ]] || continue
+			printf -- '%s\n' $word
+		done
+	done | sort | uniq
+}
+
+_xbps_all_packages() {
+	xbps-query -s "$1*" | sed 's/^... \([^ ]*\)-.* .*/\1/'
+}
+
+_xbps_installed_packages() {
+	xbps-query -l | sed 's/^.. \([^ ]*\)-.* .*/\1/'
+}
+
+_xbps_all_reply() {
+	COMPREPLY=( $( compgen -W '$(_xbps_all_packages "$1")' -- "$1") )
+}
+
+_xbps_installed_reply() {
+	COMPREPLY=( $( compgen -W '$(_xbps_installed_packages)' -- "$1") )
+}
+
+_xbps_complete() {
+	local cur prev words cword
+
+	_init_completion || return
+
+	if [[ "$cur" == -* ]]; then
+		COMPREPLY=( $( compgen -W '$( _xbps_parse_help "$1" )' -- "$cur") )
+		return
+	fi
+
+	local common='-C|--config|-r|--rootdir'
+	local morecommon="$common|-c|--cachedir"
+
+	case $1 in
+		xbps-dgraph)
+			if [[ $prev != @(-c|-o|-r) ]]; then
+				_xbps_installed_reply $cur
+				return
+			fi
+			;;
+		xbps-install)
+			if [[ $prev != @($morecommon) ]]; then
+				_xbps_all_reply $cur
+				return
+			fi
+			;;
+		xbps-pkgdb)
+			if [[ $prev == @(-m|--mode) ]]; then
+				COMPREPLY=( $( compgen -W 'auto manual hold unhold' -- "$cur") )
+				return
+			fi
+			if [[ $prev != @($common) ]]; then
+				_xbps_installed_reply $cur
+				return
+			fi
+			;;
+		xbps-query)
+			if [[ $prev != @($morecommon|-p|--property|-o|--ownedby) ]]; then
+				_xbps_all_reply $cur
+				return
+			fi
+			;;
+		xbps-reconfigure)
+			if [[ $prev != @($common) ]]; then
+				_xbps_installed_reply $cur
+				return
+			fi
+			;;
+		xbps-remove)
+			if [[ $prev != @($morecommon) ]]; then
+				_xbps_installed_reply $cur
+				return
+			fi
+			;;
+	esac
+
+	_filedir
+}
+
+complete -F _xbps_complete xbps-checkvers xbps-create xbps-dgraph xbps-install \
+	xbps-pkgdb xbps-query xbps-reconfigure xbps-remove xbps-rindex