tools/version.sh: Quick hack to edit our Maven version

Change-Id: If6b325a454c4578bbd21a6bf2c786d4cc01a47de
Signed-off-by: Shawn O. Pearce <sop@google.com>

tools/version.sh

@@ -0,0 +1,59 @@
+#!/bin/sh
+
+# Update all pom.xml with new build number
+#
+# TODO(sop) This should be converted to some sort of
+# Java based Maven plugin so its fully portable.
+#
+
+case "$1" in
+--snapshot=*)
+	V=$(echo "$1" | perl -pe 's/^--snapshot=//')
+	if [ -z "$V" ]
+	then
+		echo >&2 "usage: $0 --snapshot=0.n.0"
+		exit 1
+	fi
+	case "$V" in
+	*-SNAPSHOT) : ;;
+	*) V=$V-SNAPSHOT ;;
+	esac
+	;;
+
+--release)
+	V=$(git describe HEAD) || exit
+	;;
+
+*)
+	echo >&2 "usage: $0 {--snapshot=0.n.0 | --release}"
+	exit 1
+esac
+
+case "$V" in
+v*) V=$(echo "$V" | perl -pe s/^v//) ;;
+esac
+
+case "$V" in
+*-SNAPSHOT)
+	POM_V=$V
+	;;
+*-[1-9]*-g[0-9a-f]*)
+	POM_V=$(echo "$V" | perl -pe 's/-(\d+-g.*)$/.$1/')
+	;;
+*)
+	POM_V=$V
+	;;
+esac
+
+perl -pi -e '
+	if ($ARGV ne $old_argv) {
+		$seen_version = 0;
+		$old_argv = $ARGV;
+	}
+	if (!$seen_version) {
+		$seen_version = 1 if
+		s{(<version>).*(</version>)}{${1}'"$POM_V"'${2}};
+	}
+	' $(git ls-files | grep pom.xml)
+
+git diff