Update github workflows

- Add release workflow
- Add build numbers on action

.github/workflows/build-gradle.yml

@@ -1,4 +1,4 @@
-name: gradle-ci
+name: build-gradle
 
 on: [ push, pull_request ]
 

.github/workflows/build-release.yml

@@ -0,0 +1,27 @@
+name: build-release
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: 17
+
+      - name: Build with Gradle
+        run: ./gradlew build
+
+      - name: Upload build artifacts
+        uses: AButler/upload-release-assets@v2.0
+        with:
+          files: 'build/libs/!(*-@(dev|sources)).jar'
+          repo-token: ${{ secrets.GITHUB_TOKEN }}

build.gradle

@@ -1,12 +1,14 @@
 plugins {
     id 'fabric-loom' version '0.10.+'
     id 'io.github.juuxel.loom-quiltflower-mini' version '1.2.1'
+    id 'org.ajoberstar.grgit' version '4.1.0'
 }
 
 sourceCompatibility = '17'
 targetCompatibility = '17'
 
-version = project.mod_version
+archivesBaseName = project.archives_base_name
+version = "${project.mod_version}${getVersionMetadata()}"
 group = project.maven_group
 
 repositories {
@@ -65,3 +67,27 @@ jar {
         rename { "${it}_${project.archivesBaseName}"}
     }
 }
+
+def getVersionMetadata() {
+    def build_id = System.getenv("GITHUB_RUN_NUMBER")
+    def workflow_id = System.getenv("GITHUB_WORKFLOW")
+
+    // CI builds only
+    if (workflow_id == "build-release") {
+        return "+${project.minecraft_version}"
+    } else if (build_id != null) {
+        return "+build.${build_id}"
+    }
+
+    if (grgit != null) {
+        def head = grgit.head()
+        def id = head.abbreviatedId
+
+        // Flag the build if the build tree is not clean
+        if (!grgit.status().clean) {
+            id += "-dirty"
+        }
+
+        return "+rev.${id}"
+    }
+}