print latest release if run with no args

Author: Vladimir Kotal

dev/release.sh

@@ -8,11 +8,18 @@
 
 set -e
 
-if (( $# != 1 )); then
-	echo "usage: `basename $0` <version>"
+if (( $# > 1 )); then
+	echo "usage: `basename $0` [version]"
 	exit 1
 fi
 
+# Get the latest version (needs curl + jq).
+if (( $# == 0 )); then
+	curl -s https://api.github.com/repos/oracle/opengrok/releases/latest | \
+	    jq .tag_name
+	exit 0
+fi
+
 VERSION=$1
 
 if ! echo "$VERSION" | grep '^[0-9]\+\.[0-9]\+\.[0-9]\+$' >/dev/null; then