[CONNECT-2858] Update build script to fail with a clear error if a tag exists already

.github/workflows/build.yml

@@ -22,6 +22,8 @@ jobs:
         run: apt-get update && apt-get install -y git
       - name: Checkout repository
         uses: actions/checkout@v4
+      - name: "Validate version tag doesn't exist"
+        run: GRADLE_USER_HOME=$HOME/.gradle ./gradlew validateVersion --console=plain --no-daemon
       - name: "Gradle cache"
         uses: actions/cache@v4
         with:

build.gradle

@@ -168,3 +168,18 @@ task tagRelease {
         }
     }
 }
+
+task validateVersion {
+    doLast {
+        def tagName = "v$version"
+        def remoteTags = grgit.lsremote(tags: true)
+
+        def refName = "refs/tags/${tagName}"
+        def remoteHasTag = remoteTags.keySet().any { ref -> ref.fullName == refName }
+
+        if (remoteHasTag) {
+            throw new GradleException("Tag ${tagName} already exists. Bump the version in gradle.properties.")
+        }
+        logger.lifecycle("✓ Version ${version} is valid (tag ${tagName} does not exist yet)")
+    }
+}

gradle.properties

@@ -1,2 +1,2 @@
-version=1.35.8-1
+version=1.35.8-2
 org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8