Add a release workflow for publishing to bazel-central-registry

To publish a release:

1. Tag a commit matching the v2.* pattern
2. Review and publish the draft github release created by the workflow

.bcr/metadata.template.json

@@ -0,0 +1,20 @@
+{
+  "homepage": "https://github.com/rabbitmq/ra",
+  "maintainers": [
+    {
+      "email": "[email protected]",
+      "github": "kjnilsson",
+      "name": "Karl Nilsson"
+    },
+    {
+      "email": "[email protected]",
+      "github": "pjk25",
+      "name": "Rin Kuryloski"
+    }
+  ],
+  "repository": [
+    "github:rabbitmq/ra"
+  ],
+  "versions": [],
+  "yanked_versions": {}
+}

.bcr/presubmit.yml

@@ -0,0 +1,27 @@
+shell_commands: &shell_commands
+- curl -O https://raw.githubusercontent.com/kerl/kerl/master/kerl
+- chmod a+x kerl
+- ./kerl update releases
+- ./kerl build ${ERLANG_VERSION}
+- ./kerl install ${ERLANG_VERSION} ~/kerl/${ERLANG_VERSION}
+- realpath ~/kerl/${ERLANG_VERSION}
+
+platforms:
+  macos:
+    environment:
+      ERLANG_VERSION: "25.0"
+      ERLANG_HOME: /Users/buildkite/kerl/25.0
+    shell_commands: *shell_commands
+    build_flags:
+    - --incompatible_strict_action_env
+    build_targets:
+    - '@rabbitmq_ra//:erlang_app'
+  ubuntu2004:
+    environment:
+      ERLANG_VERSION: "25.0"
+      ERLANG_HOME: /var/lib/buildkite-agent/kerl/25.0
+    shell_commands: *shell_commands
+    build_flags:
+    - --incompatible_strict_action_env
+    build_targets:
+    - '@rabbitmq_ra//:erlang_app'

.bcr/source.template.json

@@ -0,0 +1,5 @@
+{
+  "integrity": "",
+  "strip_prefix": "{REPO}-{VERSION}",
+  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/ra-{VERSION}.tar.gz"
+}

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release
+on:
+  push:
+    tags:
+    - v2.*
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+    - name: CHECKOUT
+      uses: actions/checkout@v3
+      with:
+        path: ra
+    - name: ASSERT VERSIONS
+      id: versions
+      working-directory: ra
+      run: |
+        sudo npm install --global --silent @bazel/buildozer
+
+        VERSION_APP_SRC="$(erl -eval '{ok, [{application, _, AppInfo}]} = file:consult("src/ra.app.src"), Version = proplists:get_value(vsn, AppInfo), io:fwrite(Version), halt().' -noshell)"
+
+        if [[ "${{ github.ref_name }}" != "v$VERSION_APP_SRC" ]]; then
+          echo "Version in src/ra.app.src ($VERSION_APP_SRC) does not match tag (${{ github.ref_name }})"
+          exit 1
+        fi
+
+        VERSION_BAZEL="$(cat MODULE.bazel | buildozer 'print version' -:%module)"
+
+        if [[ "${{ github.ref_name }}" != "v$VERSION_BAZEL" ]]; then
+          echo "Version in MODULE.bazel ($VERSION_BAZEL) does not match tag (${{ github.ref_name }})"
+          exit 1
+        fi
+
+        echo "version=$VERSION_BAZEL" | tee -a $GITHUB_OUTPUT
+    - name: FETCH THE SOURCE ARCHIVE
+      run: |
+        curl \
+          -L \
+          -o ra-${{ steps.versions.outputs.version }}.tar.gz \
+          https://github.com/${{ github.repository }}/archive/${{ github.ref }}.tar.gz
+    - name: CREATE RELEASE
+      id: create-release
+      uses: ncipollo/[email protected]
+      with:
+        allowUpdates: true
+        draft: true
+        artifactErrorsFailBuild: true
+        updateOnlyUnreleased: true
+        generateReleaseNotes: true
+        artifacts: >-
+          ra-${{ steps.versions.outputs.version }}.tar.gz

MODULE.bazel

@@ -1,11 +1,11 @@
 module(
-    name = "ra",
-    version = "2.4.0",
+    name = "rabbitmq_ra",
+    version = "2.6.3",
 )
 
 bazel_dep(
     name = "rules_erlang",
-    version = "3.10.5",
+    version = "3.11.4",
 )
 
 erlang_config = use_extension(
@@ -94,7 +94,7 @@ erlang_dev_package = use_extension(
 erlang_package.hex_package(
     name = "eunit_formatters",
     version = "0.5.0",
-    build_file = "@ra//bzl:BUILD.eunit_formatters",
+    build_file = "@rabbitmq_ra//bzl:BUILD.eunit_formatters",
 )
 
 use_repo(

WORKSPACE.bazel

@@ -1,3 +1,5 @@
+workspace(name = "rabbitmq_ra")
+
 load(
     "@bazel_tools//tools/build_defs/repo:http.bzl",
     "http_archive",