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Add release automation: Gradle release task, GitHub Actions workflow, release.md
- ./gradlew release: pre-flight checks, build, Maven Central, Chocolatey (Windows), GitHub Release - .github/workflows/release.yml: tag-triggered automated release (Option B) - release.md: full release documentation - Bump version to 1.10.3 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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‎.github/workflows/release.yml‎

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name: Release
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on:
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push:
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tags:
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- 'v*'
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permissions:
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contents: write
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jobs:
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check:
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name: Check if release already exists
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runs-on: ubuntu-latest
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outputs:
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should_release: ${{ steps.check.outputs.should_release }}
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steps:
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- name: Check for existing release
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id: check
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run: |
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if gh release view "${{ github.ref_name }}" --repo "${{ github.repository }}" &>/dev/null; then
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echo "Release ${{ github.ref_name }} already exists — skipping (created by local ./gradlew release)"
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echo "should_release=false" >> "$GITHUB_OUTPUT"
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else
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echo "should_release=true" >> "$GITHUB_OUTPUT"
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fi
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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publish:
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needs: check
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if: needs.check.outputs.should_release == 'true'
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name: Build & publish to Maven Central
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runs-on: ubuntu-latest
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steps:
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- name: Verify required secrets
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run: |
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missing=()
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[ -z "$SIGNING_KEY" ] && missing+=("SIGNING_KEY")
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[ -z "$SIGNING_PASSWORD" ] && missing+=("SIGNING_PASSWORD")
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[ -z "$OSSRH_USERNAME" ] && missing+=("OSSRH_USERNAME")
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[ -z "$OSSRH_PASSWORD" ] && missing+=("OSSRH_PASSWORD")
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if [ ${#missing[@]} -gt 0 ]; then
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echo "❌ Missing required secrets: ${missing[*]}"
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echo "See release.md → Prerequisites → GitHub secrets"
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exit 1
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fi
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echo "✅ All required secrets present"
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env:
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SIGNING_KEY: ${{ secrets.SIGNING_KEY }}
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SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
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OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
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OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
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- uses: actions/checkout@v4
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- name: Set up JDK 17
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uses: actions/setup-java@v4
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with:
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distribution: temurin
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java-version: '17'
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cache: gradle
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- uses: gradle/actions/setup-gradle@v5
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- name: Extract version from tag
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id: version
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run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
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- name: Build
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run: ./gradlew build
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- name: Publish to Maven Central
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run: ./gradlew publishAllPublicationsToSonatypeRepository closeAndReleaseSonatypeStagingRepository
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env:
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ORG_GRADLE_PROJECT_signingKey: ${{ secrets.SIGNING_KEY }}
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ORG_GRADLE_PROJECT_signingPassword: ${{ secrets.SIGNING_PASSWORD }}
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ORG_GRADLE_PROJECT_ossrhUsername: ${{ secrets.OSSRH_USERNAME }}
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ORG_GRADLE_PROJECT_ossrhPassword: ${{ secrets.OSSRH_PASSWORD }}
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- name: Create GitHub Release
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run: |
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gh release create "${{ github.ref_name }}" \
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--title "Robocode ${{ steps.version.outputs.version }}" \
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--notes "See [versions.md](https://github.com/${{ github.repository }}/blob/main/versions.md) for release notes." \
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"build/robocode-${{ steps.version.outputs.version }}-setup.jar"
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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chocolatey:
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name: Publish to Chocolatey
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needs: [check, publish]
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if: needs.check.outputs.should_release == 'true'
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runs-on: windows-latest
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steps:
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- name: Verify CHOCOLATEY_API_KEY
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shell: pwsh
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run: |
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if ([string]::IsNullOrEmpty($env:CHOCOLATEY_API_KEY)) {
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Write-Error "❌ CHOCOLATEY_API_KEY secret is not set — see release.md → Prerequisites → GitHub secrets"
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exit 1
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}
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Write-Host "✅ CHOCOLATEY_API_KEY is present"
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env:
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CHOCOLATEY_API_KEY: ${{ secrets.CHOCOLATEY_API_KEY }}
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- uses: actions/checkout@v4
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- name: Set up JDK 17
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uses: actions/setup-java@v4
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with:
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distribution: temurin
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java-version: '17'
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cache: gradle
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- uses: gradle/actions/setup-gradle@v5
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- name: Publish to Chocolatey
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run: ./gradlew :robocode.installer:chocoPush
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env:
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CHOCOLATEY_API_KEY: ${{ secrets.CHOCOLATEY_API_KEY }}

‎build.gradle.kts‎

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named("clean") {
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delete(".sandbox")
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}
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val validateReleaseCredentials by registering {
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group = "publishing"
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description = "Pre-flight credential checks required for release"
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doLast {
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val signingKey = project.findProperty("signingKey") as String?
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val signingPassword = project.findProperty("signingPassword") as String?
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val ossrhUser = project.findProperty("ossrhUsername") as String?
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val ossrhPass = project.findProperty("ossrhPassword") as String?
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val chocoKey = System.getenv("CHOCOLATEY_API_KEY")
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val onWindows = System.getProperty("os.name").lowercase().contains("windows")
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val labels = mutableListOf<String>()
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val results = mutableListOf<Boolean>()
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fun check(label: String, value: String?, rejectDummy: Boolean = true) {
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labels.add(label)
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results.add(!value.isNullOrBlank() && (!rejectDummy || value != "dummy"))
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}
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val ghOk = ProcessBuilder("gh", "auth", "status")
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.redirectErrorStream(true).start().waitFor() == 0
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val expectedTag = "v${project.version}"
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val gitTagProc = ProcessBuilder("git", "tag", "--points-at", "HEAD")
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.redirectErrorStream(true).start()
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val tagOk = gitTagProc.inputStream.bufferedReader().readLines()
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.any { it.trim() == expectedTag }
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.also { gitTagProc.waitFor() }
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check("signingKey", signingKey)
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check("signingPassword", signingPassword, rejectDummy = false)
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check("ossrhUsername", ossrhUser)
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check("ossrhPassword", ossrhPass)
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if (onWindows) check("CHOCOLATEY_API_KEY (env var)", chocoKey, rejectDummy = false)
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println("\n🔑 Credential check:")
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labels.zip(results).forEach { (label, ok) -> println(" ${if (ok) "✅" else "❌"} $label") }
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if (!onWindows) println(" ⏭️ CHOCOLATEY_API_KEY (skipped — Chocolatey publish requires Windows)")
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println(" ${if (ghOk) "✅" else "❌"} GitHub CLI (gh auth status)")
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println(" ${if (tagOk) "✅" else "❌"} git tag $expectedTag on HEAD")
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println()
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val failures = labels.zip(results).filter { !it.second }.map { it.first } +
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listOfNotNull(
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if (!ghOk) "GitHub CLI (gh auth status)" else null,
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if (!tagOk) "git tag $expectedTag not found on HEAD — run: git tag $expectedTag" else null
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)
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if (failures.isNotEmpty()) {
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throw GradleException(
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"Release pre-flight failed — missing or invalid credentials:\n" +
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failures.joinToString("\n") { " ❌ $it" } +
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"\n\nSee release.md → Prerequisites for setup instructions."
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)
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}
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println("✅ All credentials present. Starting release...\n")
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}
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}
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val createGitHubRelease by registering(Exec::class) {
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group = "publishing"
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description = "Creates a GitHub release and attaches the setup JAR"
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val version = project.version.toString()
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commandLine(
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"gh", "release", "create", "v$version",
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"--title", "Robocode $version",
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"--notes", "See [versions.md](https://github.com/robo-code/robocode/blob/main/versions.md) for release notes.",
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"build/robocode-$version-setup.jar"
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)
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}
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register("release") {
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group = "publishing"
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description = "Full release: pre-flight checks, build, Maven Central, Chocolatey (Windows), GitHub Release"
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dependsOn(validateReleaseCredentials)
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dependsOn("build")
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dependsOn(createGitHubRelease)
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// Per-subproject publish tasks, closeAndRelease, and ordering are wired in projectsEvaluated below
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}
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}
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// Use projectsEvaluated (runs after ALL afterEvaluate callbacks, including the nexus plugin's)
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// so that per-subproject publishAllPublicationsToSonatypeRepository tasks are already registered.
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gradle.projectsEvaluated {
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val releaseTask = tasks.named("release")
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val validateCreds = tasks.named("validateReleaseCredentials")
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tasks.named("build") { mustRunAfter(validateCreds) }
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val publishTasks = subprojects
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.mapNotNull { it.tasks.findByName("publishAllPublicationsToSonatypeRepository") }
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publishTasks.forEach { publishTask ->
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releaseTask.configure { dependsOn(publishTask) }
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publishTask.mustRunAfter("build")
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}
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tasks.findByName("closeAndReleaseSonatypeStagingRepository")?.let { closeTask ->
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releaseTask.configure { dependsOn(closeTask) }
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closeTask.mustRunAfter(*publishTasks.toTypedArray())
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}
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val onWindows = System.getProperty("os.name").lowercase().contains("windows")
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val chocoKey = System.getenv("CHOCOLATEY_API_KEY")
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val closeTask = tasks.findByName("closeAndReleaseSonatypeStagingRepository")
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val ghRelease = tasks.named("createGitHubRelease")
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var lastBeforeGhRelease: Any = closeTask ?: "build"
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if (onWindows && !chocoKey.isNullOrBlank()) {
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project(":robocode.installer").tasks.findByName("chocoPush")?.let { chocoPush ->
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releaseTask.configure { dependsOn(chocoPush) }
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if (closeTask != null) chocoPush.mustRunAfter(closeTask)
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lastBeforeGhRelease = chocoPush
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}
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}
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ghRelease.configure { mustRunAfter(lastBeforeGhRelease) }
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}
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nexusPublishing {

‎gradle.properties‎

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# The version of Robocode
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version=1.10.2
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version=1.10.3
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# These are set to dummy values as they don't exist when run on GitHub actions
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ossrhUsername=dummy

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