From de1ee8494a91961f03c24af79b215615fa30a8eb Mon Sep 17 00:00:00 2001
From: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Date: Thu, 26 Dec 2013 21:43:22 +0200
Subject: [PATCH] programmable bash completion for some commands

Programmable bash completion for dahdi_span_assignments,
dahdi_span_types and dahdi_genconf.

Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-By: Russ Meyerriecks <rmeyerriecks@digium.com>
---
 Makefile              |   4 ++
 dahdi-bash-completion | 133 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 dahdi-bash-completion

diff --git a/Makefile b/Makefile
index 09f42bc..5566cbc 100644
--- a/Makefile
+++ b/Makefile
@@ -60,6 +60,8 @@ MODULES_FILE	= /etc/dahdi/modules
 GENCONF_FILE	= /etc/dahdi/genconf_parameters
 MODPROBE_FILE	= /etc/modprobe.d/dahdi.conf
 BLACKLIST_FILE	= /etc/modprobe.d/dahdi.blacklist.conf
+BASH_COMP_DIR	= /etc/bash_completion.d
+BASH_COMP_FILE	= $(BASH_COMP_DIR)/dahdi
 
 NETSCR_DIR	:= $(firstword $(wildcard $(DESTDIR)/etc/sysconfig/network-scripts ))
 ifneq (,$(NETSCR_DIR))
@@ -243,6 +245,8 @@ endif
 	tar cf - -C hotplug $(ASSIGNED_DATA_SCRIPTS) | tar xf - -C $(DESTDIR)$(DATA_DIR)/
 	install $(ASSIGNED_UTILS) $(DESTDIR)/$(BIN_DIR)/
 	install -m 644 $(ASSIGNED_CONF) $(DESTDIR)/$(CONFIG_DIR)/
+	install -d $(DESTDIR)$(BASH_COMP_DIR)
+	install -m 644 dahdi-bash-completion $(DESTDIR)$(BASH_COMP_FILE)
 
 install-libs: libs
 	$(INSTALL) -d -m 755 $(DESTDIR)/$(LIB_DIR)
diff --git a/dahdi-bash-completion b/dahdi-bash-completion
new file mode 100644
index 0000000..1e07bf6
--- /dev/null
+++ b/dahdi-bash-completion
@@ -0,0 +1,133 @@
+# Check for bash
+[ -z "$BASH_VERSION" ] && return
+
+__dahdi_span_assignments() {
+	local cur prev has_cmd i
+	COMPREPLY=()
+	cur=${COMP_WORDS[COMP_CWORD]}
+	prev=${COMP_WORDS[COMP_CWORD-1]}
+
+	has_cmd=0
+	for (( i=0; i < COMP_CWORD; i++)); do
+		case "${COMP_WORDS[$i]}" in
+		add | auto | dumpconfig | list | remove)
+			has_cmd=1
+			break
+			;;
+		esac
+	done
+	case "$prev" in
+	-k | --key) COMPREPLY=( $(compgen -W 'devpath hwid location' -- $cur) ) ;;
+	*)
+		case "$cur" in
+		-*) COMPREPLY=( ${COMPREPLY[@]} $(compgen -W \
+			'-h -k -n -v --help --key --dry-run --verbose' -- $cur ) )
+			;;
+		*)
+			if [ "$has_cmd" = 1 ]; then
+				COMPREPLY=( ${COMPREPLY[@]} $(shopt -s nullglob; \
+					echo /sys/bus/dahdi_devices/devices/* ) )
+			else
+				COMPREPLY=( ${COMPREPLY[@]} $(compgen -W \
+					'add auto dumpconfig list remove' -- $cur) )
+			fi
+			;;
+		esac
+		;;
+	esac
+}
+
+complete -F __dahdi_span_assignments dahdi_span_assignments
+
+__dahdi_span_types() {
+	local cur prev has_cmd i
+	COMPREPLY=()
+	cur=${COMP_WORDS[COMP_CWORD]}
+	prev=${COMP_WORDS[COMP_CWORD-1]}
+
+	has_cmd=0
+	for (( i=0; i < COMP_CWORD; i++)); do
+		case "${COMP_WORDS[$i]}" in
+		dumpconfig | list | set)
+			has_cmd=1
+			break
+			;;
+		esac
+	done
+	case "$prev" in
+	-k | --key) COMPREPLY=( $(compgen -W 'devpath hwid location' -- $cur) ) ;;
+	--line-type) COMPREPLY=( $(compgen -W 'E1 J1 T1' -- $cur) ) ;;
+	*)
+		case "$cur" in
+		-*) COMPREPLY=( ${COMPREPLY[@]} $(compgen -W \
+			'-h -k -n -v --help --key --dry-run --line-type --verbose' -- $cur ) )
+			;;
+		*)
+			if [ "$has_cmd" = 1 ]; then
+				# FIXME: check if devices are settable?
+				COMPREPLY=( ${COMPREPLY[@]} $( \
+					grep -l '[EJT]1' /sys/devices/pci0000:00/0000:00:10.4/usb1/1-1/xbus-00/*/spantype 2>/dev/null | sed -e 's|/spantype||') )
+			else
+				COMPREPLY=( ${COMPREPLY[@]} $(compgen -W \
+					'dumpconfig list set' -- $cur) )
+			fi
+			;;
+		esac
+		;;
+	esac
+}
+
+complete -F __dahdi_span_types dahdi_span_types
+
+
+__dahdi_genconf() {
+	local cur
+	COMPREPLY=()
+	prev=${COMP_WORDS[COMP_CWORD-1]}
+	cur=${COMP_WORDS[COMP_CWORD]}
+
+	case "$prev" in
+	--line-type) COMPREPLY=( $(compgen -W 'E1 J1 T1' -- $cur) ) ;;
+	*)
+		case "$cur" in
+		-*) COMPREPLY=( ${COMPREPLY[@]} $(compgen -W '-F -v -V --freepbx --version --verbose --line-type' -- $cur ) ) ;;
+		*)
+			COMPREPLY=( $( perl -e 'my $file = "\u$ARGV[0]";
+				# Complete module name. Translate the case of the
+				# first letter
+				my @pats = map {"$_/Dahdi/Config/Gen/$file*.pm"} @INC;
+				foreach (@pats) {
+					foreach(glob) {
+						s|.*/||;
+						s|.pm$||;
+						s|^(.)|lc($1)|e;
+						print "$_\n"
+					}
+				}') )
+			;;
+		esac
+		;;
+	esac
+}
+
+complete -F __dahdi_genconf dahdi_genconf
+
+__dahdi_cfg() {
+	local cur prev
+	COMPREPLY=()
+	cur=${COMP_WORDS[COMP_CWORD]}
+	prev=${COMP_WORDS[COMP_CWORD-1]}
+
+	case "$prev" in
+	-c) COMPREPLY=( $(compgen -f -- $cur) ) ;;
+	-S) COMPREPLY=( $(ls -d /sys/bus/dahdi_spans/devices/* 2>/dev/null | sed -e 's/.*-//') ) ;;
+	# FIXME: A similar completion for -C (<chan1>-<chan2>)
+	*)
+		COMPREPLY=( ${COMPREPLY[@]} $(compgen -W \
+			'-c -C -f -h -s -S -t -v ' -- $cur ) )
+		;;
+	esac
+}
+
+# Disable until -c works properly
+#complete -F __dahdi_cfg dahdi_cfg