sj-version.sh: use ./pom.xml to extract version

ctrueden · ctrueden · commit c5e7b7b418c1 · 2013-08-30T11:25:58.000-05:00
If no argument is given, it makes sense to check for a ./pom.xml file
with a pom-scijava parent and use its version as the version.
diff --git a/sj-version.sh b/sj-version.sh
@@ -20,6 +20,18 @@ props() {
 		sort
 }
 
+if [ -z "$version" ]
+then
+	# try to extract version from pom.xml in this directory
+	if [ -e pom.xml ]
+	then
+		version=$(grep -A 1 pom-scijava pom.xml | \
+			grep '<version>' | \
+			sed 's/<\/.*//' | \
+			sed 's/.*>//')
+	fi
+fi
+
 if [ -z "$version" ]
 then
 	echo "Usage: sj-version.sh version [version-to-diff]"
