fix: prevent stable release pushes to main (#145)

docs/release.md

@@ -3,7 +3,7 @@
 This runbook covers the maintainer workflow for publishing `@kaelio/ktx` to
 npm through GitHub Actions. The workflow uses semantic-release to choose the
 next version, update release metadata, publish the package, create the GitHub
-release, and commit the release files back to the repository.
+release, and commit prerelease files back to the `next` branch.
 
 ## Release channels
 
@@ -91,8 +91,9 @@ Publish a stable release from `main` after you have validated an rc package.
 7. Run the workflow.
 
 The workflow publishes `@kaelio/ktx` with `--access public --tag latest`, runs
-the published package smoke test, creates a GitHub release, and commits the
-release metadata.
+the published package smoke test, and creates a GitHub release. Stable releases
+don't commit release metadata back to `main`, because `main` is protected and
+requires changes through pull requests.
 
 ## Release metadata
 
@@ -105,7 +106,8 @@ prepare step. That script updates:
 
 The artifact packaging and readiness scripts read `publicNpmPackageVersion`
 from `release-policy.json`, so manual version edits in build scripts aren't
-needed for rc releases.
+needed for rc releases. Stable releases use the updated metadata during the
+workflow run, but that generated metadata isn't committed back to `main`.
 
 The bundled Python runtime wheel also derives its version from
 `publicNpmPackageVersion`. Stable npm versions are reused as-is, and rc

scripts/semantic-release-config.cjs

@@ -90,6 +90,26 @@ function releaseTag(kind) {
   return kind === 'rc' ? 'next' : 'latest';
 }
 
+function releaseChangelogPlugins(kind) {
+  return kind === 'rc' ? ['@semantic-release/changelog'] : [];
+}
+
+function releaseGitPlugins(kind) {
+  if (kind !== 'rc') {
+    return [];
+  }
+
+  return [
+    [
+      '@semantic-release/git',
+      {
+        assets: ['CHANGELOG.md', 'package.json', 'release-policy.json'],
+        message: 'chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}',
+      },
+    ],
+  ];
+}
+
 function releaseBranches(env = process.env) {
   const branch = currentBranch(env);
   const kind = releaseKind(env);
@@ -138,7 +158,7 @@ function createReleaseConfig(env = process.env) {
         },
       ],
       './scripts/semantic-release-version-policy.cjs',
-      '@semantic-release/changelog',
+      ...releaseChangelogPlugins(kind),
       [
         '@semantic-release/exec',
         {
@@ -153,13 +173,7 @@ function createReleaseConfig(env = process.env) {
           ].join(' && '),
         },
       ],
-      [
-        '@semantic-release/git',
-        {
-          assets: ['CHANGELOG.md', 'package.json', 'release-policy.json'],
-          message: 'chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}',
-        },
-      ],
+      ...releaseGitPlugins(kind),
       [
         '@semantic-release/github',
         {

scripts/semantic-release-config.test.mjs

@@ -9,6 +9,14 @@ function releaseExecOptions(config) {
   return config.plugins.find((plugin) => Array.isArray(plugin) && plugin[0] === '@semantic-release/exec' && plugin[1].prepareCmd)[1];
 }
 
+function releaseExecIndex(config) {
+  return config.plugins.findIndex((plugin) => Array.isArray(plugin) && plugin[0] === '@semantic-release/exec' && plugin[1].prepareCmd);
+}
+
+function pluginNames(config) {
+  return config.plugins.map((plugin) => (Array.isArray(plugin) ? plugin[0] : plugin));
+}
+
 describe('semantic-release config', () => {
   it('configures rc releases on a dedicated next prerelease branch', () => {
     assert.equal(releaseKind({ KTX_RELEASE_KIND: 'rc' }), 'rc');
@@ -23,6 +31,14 @@ describe('semantic-release config', () => {
       releaseExecOptions(config).prepareCmd,
       /update-public-release-version\.mjs "\$\{nextRelease\.version\}" "next"/,
     );
+    const releaseFilePluginNames = pluginNames(config).filter(
+      (plugin) => plugin === '@semantic-release/changelog' || plugin === '@semantic-release/git',
+    );
+    assert.deepEqual(releaseFilePluginNames, ['@semantic-release/changelog', '@semantic-release/git']);
+
+    const names = pluginNames(config);
+    assert.ok(names.indexOf('@semantic-release/changelog') < releaseExecIndex(config));
+    assert.ok(names.indexOf('@semantic-release/git') > releaseExecIndex(config));
   });
 
   it('configures stable releases only from main with latest tag', () => {
@@ -38,6 +54,13 @@ describe('semantic-release config', () => {
     assert.ok(config.plugins.includes('./scripts/semantic-release-version-policy.cjs'));
   });
 
+  it('does not commit release files back to protected main during stable releases', () => {
+    const config = createReleaseConfig({ KTX_RELEASE_KIND: 'stable', GITHUB_REF_NAME: 'main' });
+
+    assert.equal(pluginNames(config).includes('@semantic-release/git'), false);
+    assert.equal(pluginNames(config).includes('@semantic-release/changelog'), false);
+  });
+
   it('rejects stable releases from non-main branches', () => {
     assert.throws(
       () => releaseBranches({ KTX_RELEASE_KIND: 'stable', GITHUB_REF_NAME: 'feature/release-test' }),