Release from GitHub Actions

To harmonize the release process, this commit moves it to GHA.

Closes gh-448

.github/actions/create-github-release/action.yml

@@ -0,0 +1,27 @@
+name: Create GitHub Release
+description: Create the release on GitHub with a changelog
+inputs:
+  milestone:
+    description: 'Name of the GitHub milestone for which a release will be created'
+    required: true
+  token:
+    description: 'Token to use for authentication with GitHub'
+    required: true
+  prerelease:
+    description: 'Whether the release is a pre-release (milestone or release candidate)'
+    required: false
+    default: 'false'
+runs:
+  using: composite
+  steps:
+    - name: Generate Changelog
+      uses: spring-io/github-changelog-generator@185319ad7eaa75b0e8e72e4b6db19c8b2cb8c4c1 #v0.0.11
+      with:
+        milestone: ${{ inputs.milestone }}
+        token: ${{ inputs.token }}
+        config-file: .github/actions/create-github-release/changelog-generator.yml
+    - name: Create GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ inputs.token }}
+      shell: bash
+      run: gh release create ${{ format('v{0}', inputs.milestone) }} --notes-file changelog.md ${{ inputs.prerelease == 'true' && '--prerelease' || '' }}

.github/actions/create-github-release/changelog-generator.yml

@@ -0,0 +1,16 @@
+changelog:
+  repository: spring-projects/spring-retry
+  sections:
+    - title: ":star: New Features"
+      labels:
+        - "enhancement"
+    - title: ":lady_beetle: Bug Fixes"
+      labels:
+        - "bug"
+    - title: ":notebook_with_decorative_cover: Documentation"
+      labels:
+        - "documentation"
+    - title: ":hammer: Dependency Upgrades"
+      sort: "title"
+      labels:
+        - "dependencies"

.github/actions/sync-to-maven-central/action.yml

@@ -0,0 +1,50 @@
+name: Sync to Maven Central
+description: Syncs a release to Maven Central and waits for it to be available for use
+inputs:
+  jfrog-cli-config-token:
+    description: 'Config token for the JFrog CLI'
+    required: true
+  spring-retry-version:
+    description: 'The version of Spring Retry that is being synced to Central'
+    required: true
+  ossrh-s01-token-username:
+    description: 'Username for authentication with s01.oss.sonatype.org'
+    required: true
+  ossrh-s01-token-password:
+    description: 'Password for authentication with s01.oss.sonatype.org'
+    required: true
+  ossrh-s01-staging-profile:
+    description: 'Staging profile to use when syncing to Central'
+    required: true
+runs:
+  using: composite
+  steps:
+    - name: Set Up JFrog CLI
+      uses: jfrog/setup-jfrog-cli@7c95feb32008765e1b4e626b078dfd897c4340ad # v4.1.2
+      env:
+        JF_ENV_SPRING: ${{ inputs.jfrog-cli-config-token }}
+    - name: Download Release Artifacts
+      shell: bash
+      run: jf rt download --spec ${{ format('{0}/artifacts.spec', github.action_path) }} --spec-vars 'buildName=${{ format('spring-retry-{0}', inputs.spring-retry-version) }};buildNumber=${{ github.run_number }}'
+    - name: Sync
+      uses: spring-io/nexus-sync-action@42477a2230a2f694f9eaa4643fa9e76b99b7ab84 # v0.0.1
+      with:
+        username: ${{ inputs.ossrh-s01-token-username }}
+        password: ${{ inputs.ossrh-s01-token-password }}
+        staging-profile-name: ${{ inputs.ossrh-s01-staging-profile }}
+        create: true
+        upload: true
+        close: true
+        release: true
+        generate-checksums: true
+    - name: Await
+      shell: bash
+      run: |
+        url=${{ format('https://repo.maven.apache.org/maven2/org/springframework/retry/spring-retry/{0}/spring-retry-{0}.jar', inputs.spring-framework-version) }}
+        echo "Waiting for $url"
+        until curl --fail --head --silent $url > /dev/null
+        do
+          echo "."
+          sleep 60
+        done
+        echo "$url is available"

.github/actions/sync-to-maven-central/artifacts.spec

@@ -0,0 +1,17 @@
+{
+  "files": [
+    {
+      "aql": {
+        "items.find": {
+          "$and": [
+            {
+              "@build.name": "${buildName}",
+              "@build.number": "${buildNumber}"
+            }
+          ]
+        }
+      },
+      "target": "nexus/"
+    }
+  ]
+}