chore: release semver tags

.projenrc.ts

@@ -74,6 +74,9 @@ const project = new GitHubActionTypeScriptProject({
     '@aws-sdk/credential-providers',
   ],
   devDeps: [
+    'commit-and-tag-version',
+    '@types/conventional-changelog-config-spec',
+    'conventional-changelog-config-spec',
     'mock-fs@^5',
     'aws-sdk-client-mock',
     '@types/mock-fs@^4',
@@ -99,6 +102,9 @@ jestConfig?.patch(JsonPatch.add('/transform', {
 }));
 const actionYml = project.tryFindObjectFile('action.yml');
 actionYml?.addOverride('runs.using', 'node20');
+project.tasks.addTask('gh-release', {
+  exec: 'ts-node projenrc/release-version.ts'
+})
 
 // setup merge queue
 project.github?.tryFindWorkflow('build')?.on({
@@ -107,6 +113,8 @@ project.github?.tryFindWorkflow('build')?.on({
   },
 });
 
+project.github?.tryFindWorkflow('release')?.file?.patch(JsonPatch.replace("/jobs/release_github/steps/3/run", "npx ts-node projenrc/release-version.ts"))
+
 const autoMergeJob: github.workflows.Job = {
   name: 'Set AutoMerge on PR #${{ github.event.number }}',
   runsOn: ['ubuntu-latest'],

projenrc/release-version.ts

@@ -0,0 +1,86 @@
+import { promises as fs } from 'fs';
+import { join } from 'path';
+import * as logging from 'projen/lib/logging';
+import { exec } from 'projen/lib/util';
+
+export interface BumpOptions {
+  /**
+   * The name of the file which will include the release tag (a text file).
+   *
+   * Relative to cwd.
+   *
+   * @default 'dist/releasetag.txt'
+   */
+  readonly releaseTagFile?: string;
+
+  /**
+   * The github ref (branch or tag) that triggered the release.
+   */
+  readonly githubRef: string;
+
+  /**
+   * The github repository (e.g. "owner/repo").
+   */
+  readonly githubRepo: string;
+
+  readonly dryRun: boolean;
+}
+
+/**
+ *
+ *
+ * @param cwd working directory (git repository)
+ * @param options options
+ */
+export async function release(cwd: string, options: BumpOptions) {
+  const releaseTagFile = join(cwd, options.releaseTagFile ?? 'dist/releasetag.txt');
+
+  const tagVersion = (await fs.readFile(releaseTagFile, 'utf-8')).trim();
+
+  logging.info(
+    `${releaseTagFile} has resolved version: ${tagVersion}`,
+  );
+
+  const [majorVersion, minorVersion] = tagVersion.split('.');
+  const cmds = [
+    `gh release create ${tagVersion} -R ${options.githubRepo} -F dist/changelog.md -t ${tagVersion} --target ${options.githubRef}`,
+    `git tag ${majorVersion} --force`,
+    `git tag ${majorVersion}.${minorVersion} --force`,
+    'git push origin --tags',
+  ];
+  if (options.dryRun) {
+    cmds.forEach(cmd => {
+      logging.info(cmd);
+    });
+  } else {
+    cmds.forEach(cmd => {
+      exec(cmd, { cwd });
+    });
+  }
+}
+
+const releaseTagFile = process.env.RELEASETAG;
+const githubRepo = process.env.GITHUB_REPOSITORY;
+const githubRef = process.env.GITHUB_REF;
+const dryRun = process.env.RELEASE_DRY_RUN;
+
+if (!githubRepo) {
+  throw new Error('GITHUB_REPOSITORY is required');
+}
+
+if (!githubRef) {
+  throw new Error('GITHUB_REF is required');
+}
+
+const opts: BumpOptions = {
+  dryRun: dryRun != '',
+  releaseTagFile,
+  githubRef,
+  githubRepo,
+};
+logging.debug(opts);
+
+release(process.cwd(), opts).catch((e: Error) => {
+  console.log(e.stack);
+  process.exit(1);
+});