Merge pull request #5 from screwdriver-cd/versionUp

Add shell script to auto increment version number

incrementVersion.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+# Constants
+TAGS=$(git tag -l --sort="version:refname")
+INDEX=${#TAGS}
+let "INDEX--"
+VERSION=0
+MAJOR=0
+MINOR=0
+PATCH=0
+
+# Functions
+function findNextPeriod() {
+	while [[ ${VERSION:$INDEX:1} != "." ]]
+	do
+		let "INDEX++"
+	done
+}
+
+# Find the highest version tag
+while [[ ${TAGS:$INDEX:1} != "v" ]]
+do
+	let "INDEX--"
+done
+VERSION=${TAGS:$INDEX+1}
+
+# Find the Major number
+INDEX=0
+findNextPeriod
+MAJOR=${VERSION:0:$INDEX}
+
+# Find the Minor number
+VERSION=${VERSION:$INDEX+1}
+findNextPeriod
+MINOR=${VERSION:0:$INDEX}
+
+# Find the Patch number and increment
+VERSION=${VERSION:$INDEX+1}
+PATCH=$VERSION
+let "PATCH++"
+
+# Return the incremented version
+VERSION=v$MAJOR.$MINOR.$PATCH
+echo $VERSION

wercker.yml

@@ -13,11 +13,17 @@ build:
 deploy:
   steps:
     - script:
-        name: get version from VERSION file
-        code: export VERSION=$(cat VERSION)
+        name: get highest version from tags
+        code: export VERSION=$(sh incrementVersion.sh)
+    - script:
+        name: add new annotated tag
+        code: git tag -a $VERSION -m "Tagging release version $VERSION"
+    - script:
+        name: push newly added tag
+        code: git push origin $VERSION    
     - github-create-release:
         token: $GITHUB_TOKEN
-        tag: v$VERSION
+        tag: $VERSION
     - github-upload-asset:
         token: $GITHUB_TOKEN
         file: launch