buildlive: add -L option to list available distro isos

2 files changed, 22 insertions, 0 deletions

diff --git a/buildlive b/buildlive
index 9327f43..4d5d52c 100755
--- a/buildlive
+++ b/buildlive
@@ -23,11 +23,15 @@ fatalerror() {
 
 usage() {
 	msg "$0 --root=<rootpath> --dev=<devname> [--no-grub] [distro 1] [distro 2] ..."
+	msg "use $0 -L to list available distros"
 }
 
 while [[ -n "$1" ]]
 do
 	case "$1" in
+		-L)
+			exec ./listisos.sh
+			;;
 		--root=*)
 			ROOTPATH=${1/--root=}
 			UUID="$(findmnt -o UUID --raw --noheadings $ROOTPATH \
diff --git a/listisos.sh b/listisos.sh
new file mode 100755
index 0000000..1aef8f9
--- /dev/null
+++ b/listisos.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+ISOINFOS=($(find distro -name isoinfo))
+for _isoinfo in "${ISOINFOS[@]}"
+do
+	_distrobase="$(cut -d'/' -f1-2 <<< "$_isoinfo")"
+	_distroisodir="$(dirname $_isoinfo | cut -d'/' -f2-)"
+	if [ -f "$_distrobase/distroinfo" ]; then
+		source "$_distrobase/distroinfo"
+	else
+		continue
+	fi
+	source "$_isoinfo"
+	if [ -n "$ISONAME" ]; then
+		echo "$_distroisodir: $ISONAME"
+	fi
+done
+