ci: automate release process

.github/workflows/create-release.yml

@@ -2,21 +2,36 @@ name: Create a release on tag
 
 on:
   push:
-    tags:
-      - "*"
+    branches:
+      - main
 
 jobs:
   release:
     timeout-minutes: 15
     runs-on: ubuntu-latest
+    if: "contains(github.event.head_commit.message, 'prepare release')"
     strategy:
       matrix:
-        node: [14]
+        node: [15]
 
     env:
       CI: true
     steps:
       - uses: actions/checkout@v2
+        with:
+          # pulls all commits (needed for lerna / semantic release to correctly version)
+          fetch-depth: "0"
+
+      # pulls all tags (needed for lerna / semantic release to correctly version)
+      - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
+
+      - name: Git Identity
+        run: |
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+          git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/$GITHUB_REPOSITORY
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Node.js ${{ matrix.node }}
         uses: actions/setup-node@v1
@@ -38,6 +53,10 @@ jobs:
             ${{ runner.os }}-yarn-${{ matrix.node }}-
             ${{ runner.os }}-yarn-
 
+      - run: echo //registry.npmjs.org/:_authToken=${NPM_TOKEN} > .npmrc
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+
       - name: Create release
         run: |
           yarn install

scripts/create-release.js

@@ -1,14 +1,43 @@
 import { readFile } from "fs/promises";
-import { mainFn } from "@compas/stdlib";
+import { exec, mainFn, spawn } from "@compas/stdlib";
 import axios from "axios";
 
 mainFn(import.meta, main);
 
-async function main() {
-  const rawRef = process.env.GITHUB_REF;
+async function main(logger) {
   const [githubToken] = process.argv.slice(2);
 
-  const tag = rawRef.replace(/^refs\/tags\//, "");
+  const newVersion = await getVersionFromGitLog();
+  if (!/^\d+\.\d+\.\d+$/g.test(newVersion)) {
+    logger.error(`Invalid version, found: ${newVersion}`);
+
+    process.exit(1);
+  }
+
+  const { exitCode } = await spawn(`yarn`, [
+    "lerna",
+    "publish",
+    "--exact",
+    "--yes",
+    newVersion,
+  ]);
+
+  if (exitCode !== 0) {
+    process.exit(exitCode);
+  }
+
+  await addChangelogToGithubRelease(`v${newVersion}`, githubToken);
+}
+
+async function getVersionFromGitLog() {
+  const { stdout } = await exec(`git log -1 --pretty=format:"%s"`);
+  const versionString = stdout.trim().split(" ").pop();
+
+  // Drop the 'v'
+  return versionString.substring(1);
+}
+
+async function addChangelogToGithubRelease(version, githubToken) {
   const fullChangelog = await readFile("./changelog.md", "utf8");
   const changelogPart = parseChangelog(fullChangelog);
 
@@ -20,8 +49,8 @@ async function main() {
       password: githubToken,
     },
     data: {
-      tag_name: tag,
-      name: tag,
+      tag_name: version,
+      name: version,
       body: changelogPart,
       draft: false,
       prerelease: false,