Bump ws from 7.5.5 to 7.5.10 (#216)

Bumps [ws](https://github.com/websockets/ws) from 7.5.5 to 7.5.10.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/7.5.5...7.5.10)

---
updated-dependencies:
- dependency-name: ws
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: [mathieudutour]

.github/workflows/test.yml

@@ -4,13 +4,16 @@ on:
   push:
     branches:
       - master
-      - "releases/*"
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
-
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: package.json
       - run: npm ci
+      - run: npm run test
+      - run: npm run check
       - run: npm run build

.gitignore

@@ -92,3 +92,6 @@ typings/
 
 # DynamoDB Local files
 .dynamodb/
+
+# IntelliJ
+.idea/

.prettierignore

@@ -0,0 +1,8 @@
+/.github/
+/.vscode/
+/lib/
+/docs/
+/*.json
+/*.js
+/*.yml
+/*.md

.prettierrc.json

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "parser": "typescript"
+}

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+  "spellright.language": [
+    "en"
+  ],
+  "spellright.documentTypes": [
+    "markdown",
+    "latex",
+    "plaintext"
+  ]
+}

README.md

@@ -1,10 +1,10 @@
 # GitHub Tag Action
 
-A Github Action to automatically bump and tag master, on merge, with the latest SemVer formatted version. Works on any platform.
+A GitHub Action to automatically bump and tag master, on merge, with the latest SemVer formatted version. Works on any platform.
 
 ## Usage
 
-```Dockerfile
+```yaml
 name: Bump version
 on:
   push:
@@ -14,26 +14,119 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
-    - name: Bump version and push tag
-      uses: mathieudutour/github-tag-action@v1
-      with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/checkout@v4
+      - name: Bump version and push tag
+        id: tag_version
+        uses: mathieudutour/github-tag-action@v6.2
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create a GitHub release
+        uses: ncipollo/release-action@v1
+        with:
+          tag: ${{ steps.tag_version.outputs.new_tag }}
+          name: Release ${{ steps.tag_version.outputs.new_tag }}
+          body: ${{ steps.tag_version.outputs.changelog }}
 ```
 
-### Inputs
+### 📥 Inputs
 
 - **github_token** _(required)_ - Required for permission to tag the repo. Usually `${{ secrets.GITHUB_TOKEN }}`.
-- **default_bump** _(optional)_ - Which type of bump to use when none explicitly provided (default: `minor`).
+- **commit_sha** _(optional)_ - The commit SHA value to add the tag. If specified, it uses this value instead GITHUB_SHA. It could be useful when a previous step merged a branch into github.ref.
+
+#### Fetch all tags
+
+- **fetch_all_tags** _(optional)_ - By default, this action fetch the last 100 tags from Github. Sometimes, this is not enough and using this action will fetch all tags recursively (default: `false`).
+
+#### Filter branches
+
+- **release_branches** _(optional)_ - Comma separated list of branches (JavaScript regular expression accepted) that will generate the release tags. Other branches and pull-requests generate versions postfixed with the commit hash and do not generate any repository tag. Examples: `master` or `.*` or `release.*,hotfix.*,master`... (default: `master,main`).
+- **pre_release_branches** _(optional)_ - Comma separated list of branches (JavaScript regular expression accepted) that will generate the pre-release tags.
+
+#### Customize the tag
+
+- **default_bump** _(optional)_ - Which type of bump to use when [none is explicitly provided](#bumping) when commiting to a release branch (default: `patch`). You can also set `false` to avoid generating a new tag when none is explicitly provided. Can be `patch, minor or major`.
+- **default_prerelease_bump** _(optional)_ - Which type of bump to use when [none is explicitly provided](#bumping) when commiting to a prerelease branch (default: `prerelease`). You can also set `false` to avoid generating a new tag when none is explicitly provided. Can be `prerelease, prepatch, preminor or premajor`.
+- **custom_tag** _(optional)_ - Custom tag name. If specified, it overrides bump settings.
+- **create_annotated_tag** _(optional)_ - Boolean to create an annotated rather than a lightweight one (default: `false`).
 - **tag_prefix** _(optional)_ - A prefix to the tag name (default: `v`).
-- **release_branches** _(optional)_ - Comma separated list of branches (bash reg exp accepted) that will generate the release tags. Other branches and pull-requests generate versions postfixed with the commit hash and do not generate any tag. Examples: `master` or `.*` or `release.*,hotfix.*,master` ...
+- **append_to_pre_release_tag** _(optional)_ - A suffix to the pre-release tag name (default: `<branch>`).
 
-### Outputs
+#### Customize the conventional commit messages & titles of changelog sections
 
-- **new_tag** - The value of the newly created tag.
+- **custom_release_rules** _(optional)_ - Comma separated list of release rules.
 
-> **_Note:_** This action creates a [lightweight tag](https://developer.github.com/v3/git/refs/#create-a-reference).
+  __Format__: `<keyword>:<release_type>:<changelog_section>` where `<changelog_section>` is optional and will default to [Angular's conventions](https://github.com/conventional-changelog/conventional-changelog/tree/master/packages/conventional-changelog-angular).
+
+  __Examples__:
+    1. `hotfix:patch,pre-feat:preminor`,
+    2. `bug:patch:Bug Fixes,chore:patch:Chores`
+
+#### Debugging
+
+- **dry_run** _(optional)_ - Do not perform tagging, just calculate next version and changelog, then exit
+
+### 📤 Outputs
+
+- **new_tag** - The value of the newly calculated tag. Note that if there hasn't been any new commit, this will be `undefined`.
+- **new_version** - The value of the newly created tag without the prefix. Note that if there hasn't been any new commit, this will be `undefined`.
+- **previous_tag** - The value of the previous tag (or `v0.0.0` if none). Note that if `custom_tag` is set, this will be `undefined`.
+- **previous_version** - The value of the previous tag (or `0.0.0` if none) without the prefix. Note that if `custom_tag` is set, this will be `undefined`.
+- **release_type** - The computed release type (`major`, `minor`, `patch` or `custom` - can be prefixed with `pre`).
+- **changelog** - The [conventional changelog](https://github.com/conventional-changelog/conventional-changelog) since the previous tag.
+
+> **_Note:_** This action creates a [lightweight tag](https://developer.github.com/v3/git/refs/#create-a-reference) by default.
+
+### Bumping
+
+The action will parse the new commits since the last tag using the [semantic-release](https://github.com/semantic-release/semantic-release) conventions.
+
+semantic-release uses the commit messages to determine the type of changes in the codebase. Following formalized conventions for commit messages, semantic-release automatically determines the next [semantic version](https://semver.org) number.
+
+By default semantic-release uses [Angular Commit Message Conventions](https://github.com/angular/angular.js/blob/master/DEVELOPERS.md#-git-commit-guidelines).
+
+Here is an example of the release type that will be done based on a commit messages:
+
+<table>
+<tr>
+<td> Commit message </td> <td> Release type </td>
+</tr>
+<tr>
+<td>
+
+```
+fix(pencil): stop graphite breaking when too much pressure applied
+```
+
+</td>
+<td>Patch Release</td>
+</tr>
+<tr>
+<td>
+
+```
+feat(pencil): add 'graphiteWidth' option
+```
+
+</td>
+<td>Minor Release</td>
+</tr>
+<tr>
+<td>
+
+```
+perf(pencil): remove graphiteWidth option
+
+BREAKING CHANGE: The graphiteWidth option has been removed.
+The default graphite width of 10mm is always used for performance reasons.
+```
+
+</td>
+<td>Major Release</td>
+</tr>
+</table>
+
+If no commit message contains any information, then **default_bump** will be used.
 
 ## Credits
 
-[anothrNick/github-tag-action](https://github.com/anothrNick/github-tag-action) - a similar action using a Dockerfile
+[anothrNick/github-tag-action](https://github.com/anothrNick/github-tag-action) - a similar action using a Dockerfile (hence not working on macOS)

action.yml

@@ -1,27 +1,69 @@
-name: "Github Tag"
+name: "GitHub Tag"
 description: "Bump and push git tag on merge"
 author: "Mathieu Dutour"
 outputs:
   new_tag:
     description: "Generated tag"
+  new_version:
+    description: "Generated tag without the prefix"
+  previous_tag:
+    description: "Previous tag (or `0.0.0`)"
+  previous_version:
+    description: "The value of the previous tag (or 0.0.0 if none) without the prefix. Note that if custom_tag is set, this will be undefined."
+  release_type:
+    description: "The computed release type (`major`, `minor`, `patch` or `custom` - can be prefixed with `pre`)"
+  changelog:
+    description: "The conventional changelog since the previous tag"
 inputs:
   github_token:
     description: "Required for permission to tag the repo."
     required: true
   default_bump:
-    description: "Which type of bump to use when none explicitly provided (default: `minor`)."
+    description: "Which type of bump to use when none explicitly provided when commiting to a release branch (default: `patch`)."
     required: false
-    default: "minor"
+    default: "patch"
+  default_prerelease_bump:
+    description: "Which type of bump to use when none explicitly provided when commiting to a prerelease branch (default: `prerelease`)."
+    required: false
+    default: "prerelease"
   tag_prefix:
     description: "A prefix to the tag name (default: `v`)."
     required: false
     default: "v"
+  append_to_pre_release_tag:
+    description: "A suffix to a pre-release tag name (default: `<branch>`)."
+    required: false
+  custom_tag:
+    description: "Custom tag name. If specified, it overrides bump settings."
+    required: false
+  custom_release_rules:
+    description: "Comma separated list of release rules. Format: `<keyword>:<release_type>`. Example: `hotfix:patch,pre-feat:preminor`."
+    required: false
   release_branches:
     description: "Comma separated list of branches (bash reg exp accepted) that will generate the release tags. Other branches and pull-requests generate versions postfixed with the commit hash and do not generate any tag. Examples: `master` or `.*` or `release.*,hotfix.*,master`..."
     required: false
-    default: "master"
+    default: "master,main"
+  pre_release_branches:
+    description: "Comma separated list of branches (bash reg exp accepted) that will generate pre-release tags."
+    required: false
+  commit_sha:
+    description: "The commit SHA value to add the tag. If specified, it uses this value instead GITHUB_SHA. It could be useful when a previous step merged a branch into github.ref."
+    required: false
+  create_annotated_tag:
+    description: "Boolean to create an annotated tag rather than lightweight."
+    required: false
+    default: "false"
+  fetch_all_tags:
+    description: "Boolean to fetch all tags for a repo (if false, only the last 100 will be fetched)."
+    required: false
+    default: "false"
+  dry_run:
+    description: "Do not perform tagging, just calculate next version and changelog, then exit."
+    required: false
+    default: "false"
+
 runs:
-  using: "node12"
+  using: "node20"
   main: "lib/main.js"
 branding:
   icon: "git-merge"

package.json

@@ -1,11 +1,13 @@
 {
   "name": "github-tag-action",
-  "version": "0.1.0",
+  "version": "6.2.0",
   "private": true,
-  "description": "A Github Action to automatically bump and tag master, on merge, with the latest SemVer formatted version.",
+  "description": "A GitHub Action to automatically bump and tag master, on merge, with the latest SemVer formatted version.",
   "main": "lib/main.js",
   "scripts": {
-    "build": "tsc"
+    "build": "tsc",
+    "test": "jest --testTimeout 10000",
+    "check": "prettier --check ."
   },
   "repository": {
     "type": "git",
@@ -16,21 +18,31 @@
     "node",
     "setup"
   ],
+  "engines": {
+    "node": ">=20"
+  },
   "author": "Mathieu Dutour",
   "license": "MIT",
   "dependencies": {
-    "@actions/core": "^1.0.0",
-    "@actions/exec": "^1.0.1",
-    "@actions/github": "^1.1.0",
-    "semver": "^6.3.0"
+    "@actions/core": "^1.10.0",
+    "@actions/exec": "^1.1.0",
+    "@actions/github": "^4.0.0",
+    "@semantic-release/commit-analyzer": "^8.0.1",
+    "@semantic-release/release-notes-generator": "^9.0.1",
+    "conventional-changelog-conventionalcommits": "^4.6.1",
+    "semver": "^7.3.5"
   },
   "devDependencies": {
-    "@types/jest": "^24.0.13",
-    "@types/node": "^12.0.4",
-    "@types/semver": "^6.2.0",
-    "jest": "^24.8.0",
-    "jest-circus": "^24.7.1",
-    "ts-jest": "^24.0.2",
-    "typescript": "^3.5.1"
+    "@octokit/rest": "^18.12.0",
+    "@types/jest": "^27.0.2",
+    "@types/js-yaml": "^4.0.4",
+    "@types/node": "^20.11.16",
+    "@types/semver": "^7.3.9",
+    "jest": "^27.3.1",
+    "jest-circus": "^27.3.1",
+    "js-yaml": "^4.1.0",
+    "prettier": "2.4.1",
+    "ts-jest": "^27.0.7",
+    "typescript": "^4.4.4"
   }
 }

src/action.ts

@@ -0,0 +1,232 @@
+import * as core from '@actions/core';
+import { gte, inc, parse, ReleaseType, SemVer, valid } from 'semver';
+import { analyzeCommits } from '@semantic-release/commit-analyzer';
+import { generateNotes } from '@semantic-release/release-notes-generator';
+import {
+  getBranchFromRef,
+  isPr,
+  getCommits,
+  getLatestPrereleaseTag,
+  getLatestTag,
+  getValidTags,
+  mapCustomReleaseRules,
+  mergeWithDefaultChangelogRules,
+} from './utils';
+import { createTag } from './github';
+import { Await } from './ts';
+
+export default async function main() {
+  const defaultBump = core.getInput('default_bump') as ReleaseType | 'false';
+  const defaultPreReleaseBump = core.getInput('default_prerelease_bump') as
+    | ReleaseType
+    | 'false';
+  const tagPrefix = core.getInput('tag_prefix');
+  const customTag = core.getInput('custom_tag');
+  const releaseBranches = core.getInput('release_branches');
+  const preReleaseBranches = core.getInput('pre_release_branches');
+  const appendToPreReleaseTag = core.getInput('append_to_pre_release_tag');
+  const createAnnotatedTag = /true/i.test(
+    core.getInput('create_annotated_tag')
+  );
+  const dryRun = core.getInput('dry_run');
+  const customReleaseRules = core.getInput('custom_release_rules');
+  const shouldFetchAllTags = core.getInput('fetch_all_tags');
+  const commitSha = core.getInput('commit_sha');
+
+  let mappedReleaseRules;
+  if (customReleaseRules) {
+    mappedReleaseRules = mapCustomReleaseRules(customReleaseRules);
+  }
+
+  const { GITHUB_REF, GITHUB_SHA } = process.env;
+
+  if (!GITHUB_REF) {
+    core.setFailed('Missing GITHUB_REF.');
+    return;
+  }
+
+  const commitRef = commitSha || GITHUB_SHA;
+  if (!commitRef) {
+    core.setFailed('Missing commit_sha or GITHUB_SHA.');
+    return;
+  }
+
+  const currentBranch = getBranchFromRef(GITHUB_REF);
+  const isReleaseBranch = releaseBranches
+    .split(',')
+    .some((branch) => currentBranch.match(branch));
+  const isPreReleaseBranch = preReleaseBranches
+    .split(',')
+    .some((branch) => currentBranch.match(branch));
+  const isPullRequest = isPr(GITHUB_REF);
+  const isPrerelease = !isReleaseBranch && !isPullRequest && isPreReleaseBranch;
+
+  // Sanitize identifier according to
+  // https://semver.org/#backusnaur-form-grammar-for-valid-semver-versions
+  const identifier = (
+    appendToPreReleaseTag ? appendToPreReleaseTag : currentBranch
+  ).replace(/[^a-zA-Z0-9-]/g, '-');
+
+  const prefixRegex = new RegExp(`^${tagPrefix}`);
+
+  const validTags = await getValidTags(
+    prefixRegex,
+    /true/i.test(shouldFetchAllTags)
+  );
+  const latestTag = getLatestTag(validTags, prefixRegex, tagPrefix);
+  const latestPrereleaseTag = getLatestPrereleaseTag(
+    validTags,
+    identifier,
+    prefixRegex
+  );
+
+  let commits: Await<ReturnType<typeof getCommits>>;
+
+  let newVersion: string;
+
+  if (customTag) {
+    commits = await getCommits(latestTag.commit.sha, commitRef);
+
+    core.setOutput('release_type', 'custom');
+    newVersion = customTag;
+  } else {
+    let previousTag: ReturnType<typeof getLatestTag> | null;
+    let previousVersion: SemVer | null;
+    if (!latestPrereleaseTag) {
+      previousTag = latestTag;
+    } else {
+      previousTag = gte(
+        latestTag.name.replace(prefixRegex, ''),
+        latestPrereleaseTag.name.replace(prefixRegex, '')
+      )
+        ? latestTag
+        : latestPrereleaseTag;
+    }
+
+    if (!previousTag) {
+      core.setFailed('Could not find previous tag.');
+      return;
+    }
+
+    previousVersion = parse(previousTag.name.replace(prefixRegex, ''));
+
+    if (!previousVersion) {
+      core.setFailed('Could not parse previous tag.');
+      return;
+    }
+
+    core.info(
+      `Previous tag was ${previousTag.name}, previous version was ${previousVersion.version}.`
+    );
+    core.setOutput('previous_version', previousVersion.version);
+    core.setOutput('previous_tag', previousTag.name);
+
+    commits = await getCommits(previousTag.commit.sha, commitRef);
+
+    let bump = await analyzeCommits(
+      {
+        releaseRules: mappedReleaseRules
+          ? // analyzeCommits doesn't appreciate rules with a section /shrug
+            mappedReleaseRules.map(({ section, ...rest }) => ({ ...rest }))
+          : undefined,
+      },
+      { commits, logger: { log: console.info.bind(console) } }
+    );
+
+    // Determine if we should continue with tag creation based on main vs prerelease branch
+    let shouldContinue = true;
+    if (isPrerelease) {
+      if (!bump && defaultPreReleaseBump === 'false') {
+        shouldContinue = false;
+      }
+    } else {
+      if (!bump && defaultBump === 'false') {
+        shouldContinue = false;
+      }
+    }
+
+    // Default bump is set to false and we did not find an automatic bump
+    if (!shouldContinue) {
+      core.debug(
+        'No commit specifies the version bump. Skipping the tag creation.'
+      );
+      return;
+    }
+
+    // If we don't have an automatic bump for the prerelease, just set our bump as the default
+    if (isPrerelease && !bump) {
+      bump = defaultPreReleaseBump;
+    }
+
+    // If somebody uses custom release rules on a prerelease branch they might create a 'preprepatch' bump.
+    const preReg = /^pre/;
+    if (isPrerelease && preReg.test(bump)) {
+      bump = bump.replace(preReg, '');
+    }
+
+    const releaseType: ReleaseType = isPrerelease
+      ? `pre${bump}`
+      : bump || defaultBump;
+    core.setOutput('release_type', releaseType);
+
+    const incrementedVersion = inc(previousVersion, releaseType, identifier);
+
+    if (!incrementedVersion) {
+      core.setFailed('Could not increment version.');
+      return;
+    }
+
+    if (!valid(incrementedVersion)) {
+      core.setFailed(`${incrementedVersion} is not a valid semver.`);
+      return;
+    }
+
+    newVersion = incrementedVersion;
+  }
+
+  core.info(`New version is ${newVersion}.`);
+  core.setOutput('new_version', newVersion);
+
+  const newTag = `${tagPrefix}${newVersion}`;
+  core.info(`New tag after applying prefix is ${newTag}.`);
+  core.setOutput('new_tag', newTag);
+
+  const changelog = await generateNotes(
+    {
+      preset: 'conventionalcommits',
+      presetConfig: {
+        types: mergeWithDefaultChangelogRules(mappedReleaseRules),
+      },
+    },
+    {
+      commits,
+      logger: { log: console.info.bind(console) },
+      options: {
+        repositoryUrl: `${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}`,
+      },
+      lastRelease: { gitTag: latestTag.name },
+      nextRelease: { gitTag: newTag, version: newVersion },
+    }
+  );
+  core.info(`Changelog is ${changelog}.`);
+  core.setOutput('changelog', changelog);
+
+  if (!isReleaseBranch && !isPreReleaseBranch) {
+    core.info(
+      'This branch is neither a release nor a pre-release branch. Skipping the tag creation.'
+    );
+    return;
+  }
+
+  if (validTags.map((tag) => tag.name).includes(newTag)) {
+    core.info('This tag already exists. Skipping the tag creation.');
+    return;
+  }
+
+  if (/true/i.test(dryRun)) {
+    core.info('Dry run: not performing tag action.');
+    return;
+  }
+
+  await createTag(newTag, createAnnotatedTag, commitRef);
+}

src/defaults.ts

@@ -0,0 +1,32 @@
+type ChangelogRule = {
+  /**
+   * Commit type.
+   * Eg: feat, fix etc.
+   */
+  type: string;
+  /**
+   * Section in changelog to group commits by type.
+   * Eg: 'Bug Fix', 'Features' etc.
+   */
+  section?: string;
+};
+
+/**
+ * Default sections & changelog rules mentioned in `conventional-changelog-angular` & `conventional-changelog-conventionalcommits`.
+ * References:
+ * https://github.com/conventional-changelog/conventional-changelog/blob/master/packages/conventional-changelog-angular/writer-opts.js
+ * https://github.com/conventional-changelog/conventional-changelog/blob/master/packages/conventional-changelog-conventionalcommits/writer-opts.js
+ */
+export const defaultChangelogRules: Readonly<Record<string, ChangelogRule>> =
+  Object.freeze({
+    feat: { type: 'feat', section: 'Features' },
+    fix: { type: 'fix', section: 'Bug Fixes' },
+    perf: { type: 'perf', section: 'Performance Improvements' },
+    revert: { type: 'revert', section: 'Reverts' },
+    docs: { type: 'docs', section: 'Documentation' },
+    style: { type: 'style', section: 'Styles' },
+    refactor: { type: 'refactor', section: 'Code Refactoring' },
+    test: { type: 'test', section: 'Tests' },
+    build: { type: 'build', section: 'Build Systems' },
+    ci: { type: 'ci', section: 'Continuous Integration' },
+  });

src/github.ts

@@ -0,0 +1,94 @@
+import { context, getOctokit } from '@actions/github';
+import * as core from '@actions/core';
+import { Await } from './ts';
+
+let octokitSingleton: ReturnType<typeof getOctokit>;
+
+type Tag = {
+  name: string;
+  commit: {
+    sha: string;
+    url: string;
+  };
+  zipball_url: string;
+  tarball_url: string;
+  node_id: string;
+};
+
+export function getOctokitSingleton() {
+  if (octokitSingleton) {
+    return octokitSingleton;
+  }
+  const githubToken = core.getInput('github_token');
+  octokitSingleton = getOctokit(githubToken);
+  return octokitSingleton;
+}
+
+/**
+ * Fetch all tags for a given repository recursively
+ */
+export async function listTags(
+  shouldFetchAllTags = false,
+  fetchedTags: Tag[] = [],
+  page = 1
+): Promise<Tag[]> {
+  const octokit = getOctokitSingleton();
+
+  const tags = await octokit.repos.listTags({
+    ...context.repo,
+    per_page: 100,
+    page,
+  });
+
+  if (tags.data.length < 100 || shouldFetchAllTags === false) {
+    return [...fetchedTags, ...tags.data];
+  }
+
+  return listTags(shouldFetchAllTags, [...fetchedTags, ...tags.data], page + 1);
+}
+
+/**
+ * Compare `headRef` to `baseRef` (i.e. baseRef...headRef)
+ * @param baseRef - old commit
+ * @param headRef - new commit
+ */
+export async function compareCommits(baseRef: string, headRef: string) {
+  const octokit = getOctokitSingleton();
+  core.debug(`Comparing commits (${baseRef}...${headRef})`);
+
+  const commits = await octokit.repos.compareCommits({
+    ...context.repo,
+    base: baseRef,
+    head: headRef,
+  });
+
+  return commits.data.commits;
+}
+
+export async function createTag(
+  newTag: string,
+  createAnnotatedTag: boolean,
+  GITHUB_SHA: string
+) {
+  const octokit = getOctokitSingleton();
+  let annotatedTag:
+    | Await<ReturnType<typeof octokit.git.createTag>>
+    | undefined = undefined;
+  if (createAnnotatedTag) {
+    core.debug(`Creating annotated tag.`);
+    annotatedTag = await octokit.git.createTag({
+      ...context.repo,
+      tag: newTag,
+      message: newTag,
+      object: GITHUB_SHA,
+      type: 'commit',
+    });
+  }
+
+  core.debug(`Pushing new tag to the repo.`);
+  await octokit.git.createRef({
+    ...context.repo,
+    ref: `refs/tags/${newTag}`,
+    sha: annotatedTag ? annotatedTag.data.sha : GITHUB_SHA,
+  });
+}

src/main.ts

@@ -1,109 +1,10 @@
-import * as core from "@actions/core";
-import { exec as _exec } from "@actions/exec";
-import { context, GitHub } from "@actions/github";
-import semver, { ReleaseType } from "semver";
-
-async function exec(command: string) {
-  let stdout = "";
-  let stderr = "";
-
-  try {
-    const options = {
-      listeners: {
-        stdout: (data: Buffer) => {
-          stdout += data.toString();
-        },
-        stderr: (data: Buffer) => {
-          stderr += data.toString();
-        }
-      }
-    };
-
-    const code = await _exec(
-      "git describe --tags `git rev-list --tags --max-count=1`",
-      undefined,
-      options
-    );
-
-    return {
-      code,
-      stdout,
-      stderr
-    };
-  } catch (err) {
-    return {
-      code: 1,
-      stdout,
-      stderr,
-      error: err
-    };
-  }
-}
+import * as core from '@actions/core';
+import action from './action';
 
 async function run() {
   try {
-    // @ts-ignore
-    const bump: ReleaseType = core.getInput("default_bump");
-    const tagPrefix = core.getInput("tag_prefix");
-    const releaseBranches = core.getInput("release_branches");
-
-    const { GITHUB_REF, GITHUB_SHA } = process.env;
-
-    if (!GITHUB_REF) {
-      core.setFailed("Missing GITHUB_REF");
-      return;
-    }
-
-    if (!GITHUB_SHA) {
-      core.setFailed("Missing GITHUB_SHA");
-      return;
-    }
-
-    const preRelease = releaseBranches
-      .split(",")
-      .every(branch => !GITHUB_REF.replace("refs/heads/", "").match(branch));
-
-    const hasTag = !!(await exec("git tags")).stdout;
-    let tag = "";
-
-    if (hasTag) {
-      const previousTagSha = (await exec("git rev-list --tags --max-count=1"))
-        .stdout;
-      tag = (await exec(`git describe --tags ${previousTagSha}`)).stdout;
-
-      if (previousTagSha === GITHUB_SHA) {
-        core.debug("No new commits since previous tag. Skipping...");
-        return;
-      }
-    } else {
-      tag = "0.0.0";
-    }
-
-    const newTag = `${tagPrefix}${semver.inc(tag, bump)}${
-      preRelease ? `-${GITHUB_SHA.slice(0, 7)}` : ""
-    }`;
-
-    core.setOutput("new_tag", newTag);
-
-    core.debug(`New tag: ${newTag}`);
-
-    if (preRelease) {
-      core.debug(
-        "This branch is not a release branch. Skipping the tag creation."
-      );
-      return;
-    }
-
-    const octokit = new GitHub(core.getInput("github_token"));
-
-    core.debug(`Pushing new tag to the repo`);
-
-    await octokit.git.createRef({
-      ...context.repo,
-      ref: `refs/tags/${newTag}`,
-      sha: GITHUB_SHA
-    });
-  } catch (error) {
+    await action();
+  } catch (error: any) {
     core.setFailed(error.message);
   }
 }

src/ts.ts

@@ -0,0 +1,5 @@
+export type Await<T> = T extends {
+  then(onfulfilled?: (value: infer U) => unknown): unknown;
+}
+  ? U
+  : T;

src/utils.ts

@@ -0,0 +1,149 @@
+import * as core from '@actions/core';
+import { prerelease, rcompare, valid } from 'semver';
+// @ts-ignore
+import DEFAULT_RELEASE_TYPES from '@semantic-release/commit-analyzer/lib/default-release-types';
+import { compareCommits, listTags } from './github';
+import { defaultChangelogRules } from './defaults';
+import { Await } from './ts';
+
+type Tags = Await<ReturnType<typeof listTags>>;
+
+export async function getValidTags(
+  prefixRegex: RegExp,
+  shouldFetchAllTags: boolean
+) {
+  const tags = await listTags(shouldFetchAllTags);
+
+  const invalidTags = tags.filter(
+    (tag) =>
+      !prefixRegex.test(tag.name) || !valid(tag.name.replace(prefixRegex, ''))
+  );
+
+  invalidTags.forEach((name) => core.debug(`Found Invalid Tag: ${name}.`));
+
+  const validTags = tags
+    .filter(
+      (tag) =>
+        prefixRegex.test(tag.name) && valid(tag.name.replace(prefixRegex, ''))
+    )
+    .sort((a, b) =>
+      rcompare(a.name.replace(prefixRegex, ''), b.name.replace(prefixRegex, ''))
+    );
+
+  validTags.forEach((tag) => core.debug(`Found Valid Tag: ${tag.name}.`));
+
+  return validTags;
+}
+
+export async function getCommits(
+  baseRef: string,
+  headRef: string
+): Promise<{ message: string; hash: string | null }[]> {
+  const commits = await compareCommits(baseRef, headRef);
+
+  return commits
+    .filter((commit) => !!commit.commit.message)
+    .map((commit) => ({
+      message: commit.commit.message,
+      hash: commit.sha,
+    }));
+}
+
+export function getBranchFromRef(ref: string) {
+  return ref.replace('refs/heads/', '');
+}
+
+export function isPr(ref: string) {
+  return ref.includes('refs/pull/');
+}
+
+export function getLatestTag(
+  tags: Tags,
+  prefixRegex: RegExp,
+  tagPrefix: string
+) {
+  return (
+    tags.find(
+      (tag) =>
+        prefixRegex.test(tag.name) &&
+        !prerelease(tag.name.replace(prefixRegex, ''))
+    ) || {
+      name: `${tagPrefix}0.0.0`,
+      commit: {
+        sha: 'HEAD',
+      },
+    }
+  );
+}
+
+export function getLatestPrereleaseTag(
+  tags: Tags,
+  identifier: string,
+  prefixRegex: RegExp
+) {
+  return tags
+    .filter((tag) => prerelease(tag.name.replace(prefixRegex, '')))
+    .find((tag) => tag.name.replace(prefixRegex, '').match(identifier));
+}
+
+export function mapCustomReleaseRules(customReleaseTypes: string) {
+  const releaseRuleSeparator = ',';
+  const releaseTypeSeparator = ':';
+
+  return customReleaseTypes
+    .split(releaseRuleSeparator)
+    .filter((customReleaseRule) => {
+      const parts = customReleaseRule.split(releaseTypeSeparator);
+
+      if (parts.length < 2) {
+        core.warning(
+          `${customReleaseRule} is not a valid custom release definition.`
+        );
+        return false;
+      }
+
+      const defaultRule = defaultChangelogRules[parts[0].toLowerCase()];
+      if (customReleaseRule.length !== 3) {
+        core.debug(
+          `${customReleaseRule} doesn't mention the section for the changelog.`
+        );
+        core.debug(
+          defaultRule
+            ? `Default section (${defaultRule.section}) will be used instead.`
+            : "The commits matching this rule won't be included in the changelog."
+        );
+      }
+
+      if (!DEFAULT_RELEASE_TYPES.includes(parts[1])) {
+        core.warning(`${parts[1]} is not a valid release type.`);
+        return false;
+      }
+
+      return true;
+    })
+    .map((customReleaseRule) => {
+      const [type, release, section] =
+        customReleaseRule.split(releaseTypeSeparator);
+      const defaultRule = defaultChangelogRules[type.toLowerCase()];
+
+      return {
+        type,
+        release,
+        section: section || defaultRule?.section,
+      };
+    });
+}
+
+export function mergeWithDefaultChangelogRules(
+  mappedReleaseRules: ReturnType<typeof mapCustomReleaseRules> = []
+) {
+  const mergedRules = mappedReleaseRules.reduce(
+    (acc, curr) => ({
+      ...acc,
+      [curr.type]: curr,
+    }),
+    { ...defaultChangelogRules }
+  );
+
+  return Object.values(mergedRules).filter((rule) => !!rule.section);
+}

tests/action.test.ts

@@ -0,0 +1,876 @@
+import action from '../src/action';
+import * as utils from '../src/utils';
+import * as github from '../src/github';
+import * as core from '@actions/core';
+import {
+  loadDefaultInputs,
+  setBranch,
+  setCommitSha,
+  setInput,
+  setRepository,
+} from './helper.test';
+
+jest.spyOn(core, 'debug').mockImplementation(() => {});
+jest.spyOn(core, 'info').mockImplementation(() => {});
+jest.spyOn(console, 'info').mockImplementation(() => {});
+
+beforeAll(() => {
+  setRepository('https://github.com', 'org/repo');
+});
+
+const mockCreateTag = jest
+  .spyOn(github, 'createTag')
+  .mockResolvedValue(undefined);
+
+const mockSetOutput = jest
+  .spyOn(core, 'setOutput')
+  .mockImplementation(() => {});
+
+const mockSetFailed = jest.spyOn(core, 'setFailed');
+
+describe('github-tag-action', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+    setBranch('master');
+    setCommitSha('79e0ea271c26aa152beef77c3275ff7b8f8d8274');
+    loadDefaultInputs();
+  });
+
+  describe('special cases', () => {
+    it('does create initial tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [{ message: 'fix: this is my first fix', hash: null }];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags: any[] = [];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v0.0.1',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create patch tag without commits', async () => {
+      /*
+       * Given
+       */
+      const commits: any[] = [];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags: any[] = [];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v0.0.1',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does not create tag without commits and default_bump set to false', async () => {
+      /*
+       * Given
+       */
+      setInput('default_bump', 'false');
+      const commits: any[] = [];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).not.toBeCalled();
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag using custom release types', async () => {
+      /*
+       * Given
+       */
+      setInput('custom_release_rules', 'james:patch,bond:major');
+      const commits = [
+        { message: 'james: is the new cool guy', hash: null },
+        { message: 'bond: is his last name', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v2.0.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag using custom release types but non-custom commit message', async () => {
+      /*
+       * Given
+       */
+      setInput('custom_release_rules', 'james:patch,bond:major');
+      const commits = [
+        { message: 'fix: is the new cool guy', hash: null },
+        { message: 'feat: is his last name', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.3.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+  });
+
+  describe('release branches', () => {
+    beforeEach(() => {
+      jest.clearAllMocks();
+      setBranch('release');
+      setInput('release_branches', 'release');
+    });
+
+    it('does create patch tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [{ message: 'fix: this is my first fix', hash: null }];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.2.4',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create minor tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        { message: 'feat: this is my first feature', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.3.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create major tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        {
+          message:
+            'my commit message\nBREAKING CHANGE:\nthis is a breaking change',
+          hash: null,
+        },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v2.0.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag when pre-release tag is newer', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        { message: 'feat: some new feature on a release branch', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+        {
+          name: 'v2.1.3-prerelease.0',
+          commit: { sha: '678901', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+        {
+          name: 'v2.1.3-prerelease.1',
+          commit: { sha: '234567', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v2.2.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag with custom release rules', async () => {
+      /*
+       * Given
+       */
+      setInput('custom_release_rules', 'james:preminor');
+      const commits = [
+        {
+          message: 'feat: some new feature on a pre-release branch',
+          hash: null,
+        },
+        { message: 'james: this should make a preminor', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.3.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+  });
+
+  describe('pre-release branches', () => {
+    beforeEach(() => {
+      jest.clearAllMocks();
+      setBranch('prerelease');
+      setInput('pre_release_branches', 'prerelease');
+    });
+
+    it('does not create tag without commits and default_bump set to false', async () => {
+      /*
+       * Given
+       */
+      setInput('default_prerelease_bump', 'false');
+      const commits: any[] = [];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).not.toBeCalled();
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create prerelease tag', async () => {
+      /*
+       * Given
+       */
+      setInput('default_prerelease_bump', 'prerelease');
+      const commits = [{ message: 'this is my first fix', hash: null }];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.2.4-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create prepatch tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [{ message: 'fix: this is my first fix', hash: null }];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.2.4-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create preminor tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        { message: 'feat: this is my first feature', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.3.0-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create premajor tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        {
+          message:
+            'my commit message\nBREAKING CHANGE:\nthis is a breaking change',
+          hash: null,
+        },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v2.0.0-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag when release tag is newer', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        {
+          message: 'feat: some new feature on a pre-release branch',
+          hash: null,
+        },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3-prerelease.0',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+        {
+          name: 'v3.1.2-feature.0',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+        {
+          name: 'v2.1.4',
+          commit: { sha: '234567', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v2.2.0-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does create tag with custom release rules', async () => {
+      /*
+       * Given
+       */
+      setInput('custom_release_rules', 'james:preminor');
+      const commits = [
+        {
+          message: 'feat: some new feature on a pre-release branch',
+          hash: null,
+        },
+        { message: 'james: this should make a preminor', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockCreateTag).toHaveBeenCalledWith(
+        'v1.3.0-prerelease.0',
+        expect.any(Boolean),
+        expect.any(String)
+      );
+      expect(mockSetFailed).not.toBeCalled();
+    });
+  });
+
+  describe('other branches', () => {
+    beforeEach(() => {
+      jest.clearAllMocks();
+      setBranch('development');
+      setInput('pre_release_branches', 'prerelease');
+      setInput('release_branches', 'release');
+    });
+
+    it('does output patch tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [{ message: 'fix: this is my first fix', hash: null }];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockSetOutput).toHaveBeenCalledWith('new_version', '1.2.4');
+      expect(mockCreateTag).not.toBeCalled();
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does output minor tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        { message: 'feat: this is my first feature', hash: null },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockSetOutput).toHaveBeenCalledWith('new_version', '1.3.0');
+      expect(mockCreateTag).not.toBeCalled();
+      expect(mockSetFailed).not.toBeCalled();
+    });
+
+    it('does output major tag', async () => {
+      /*
+       * Given
+       */
+      const commits = [
+        {
+          message:
+            'my commit message\nBREAKING CHANGE:\nthis is a breaking change',
+          hash: null,
+        },
+      ];
+      jest
+        .spyOn(utils, 'getCommits')
+        .mockImplementation(async (sha) => commits);
+
+      const validTags = [
+        {
+          name: 'v1.2.3',
+          commit: { sha: '012345', url: '' },
+          zipball_url: '',
+          tarball_url: 'string',
+          node_id: 'string',
+        },
+      ];
+      jest
+        .spyOn(utils, 'getValidTags')
+        .mockImplementation(async () => validTags);
+
+      /*
+       * When
+       */
+      await action();
+
+      /*
+       * Then
+       */
+      expect(mockSetOutput).toHaveBeenCalledWith('new_version', '2.0.0');
+      expect(mockCreateTag).not.toBeCalled();
+      expect(mockSetFailed).not.toBeCalled();
+    });
+  });
+});

tests/github.test.ts

@@ -0,0 +1,55 @@
+import { listTags } from '../src/github';
+
+jest.mock(
+  '@actions/github',
+  jest.fn().mockImplementation(() => ({
+    context: { repo: { owner: 'mock-owner', repo: 'mock-repo' } },
+    getOctokit: jest.fn().mockReturnValue({
+      repos: {
+        listTags: jest.fn().mockImplementation(({ page }: { page: number }) => {
+          if (page === 6) {
+            return { data: [] };
+          }
+
+          const res = [...new Array(100).keys()].map((_) => ({
+            name: `v0.0.${_ + (page - 1) * 100}`,
+            commit: { sha: 'string', url: 'string' },
+            zipball_url: 'string',
+            tarball_url: 'string',
+            node_id: 'string',
+          }));
+
+          return { data: res };
+        }),
+      },
+    }),
+  }))
+);
+
+describe('github', () => {
+  it('returns all tags', async () => {
+    const tags = await listTags(true);
+
+    expect(tags.length).toEqual(500);
+    expect(tags[499]).toEqual({
+      name: 'v0.0.499',
+      commit: { sha: 'string', url: 'string' },
+      zipball_url: 'string',
+      tarball_url: 'string',
+      node_id: 'string',
+    });
+  });
+
+  it('returns only the last 100 tags', async () => {
+    const tags = await listTags(true);
+
+    expect(tags.length).toEqual(500);
+    expect(tags[99]).toEqual({
+      name: 'v0.0.99',
+      commit: { sha: 'string', url: 'string' },
+      zipball_url: 'string',
+      tarball_url: 'string',
+      node_id: 'string',
+    });
+  });
+});

tests/helper.test.ts

@@ -0,0 +1,49 @@
+import yaml from 'js-yaml';
+import fs from 'fs';
+import path from 'path';
+
+export function setRepository(
+  GITHUB_SERVER_URL: string,
+  GITHUB_REPOSITORY: string
+) {
+  process.env['GITHUB_SERVER_URL'] = GITHUB_SERVER_URL;
+  process.env['GITHUB_REPOSITORY'] = GITHUB_REPOSITORY;
+}
+
+export function setBranch(branch: string) {
+  process.env['GITHUB_REF'] = `refs/heads/${branch}`;
+}
+
+export function setCommitSha(sha: string) {
+  process.env['GITHUB_SHA'] = sha;
+}
+
+export function setInput(key: string, value: string) {
+  process.env[`INPUT_${key.toUpperCase()}`] = value;
+}
+
+export function setInputs(map: { [key: string]: string }) {
+  Object.keys(map).forEach((key) => setInput(key, map[key]));
+}
+
+export function loadDefaultInputs() {
+  const actionYaml = fs.readFileSync(
+    path.join(process.cwd(), 'action.yml'),
+    'utf-8'
+  );
+  const actionJson = yaml.load(actionYaml) as {
+    inputs: { [key: string]: { default?: string } };
+  };
+  const defaultInputs = Object.keys(actionJson['inputs'])
+    .filter((key) => actionJson['inputs'][key].default)
+    .reduce(
+      (obj, key) => ({ ...obj, [key]: actionJson['inputs'][key].default }),
+      {}
+    );
+  setInputs(defaultInputs);
+}
+
+// Don't know how to have this file only for test but not have 'tsc' complain. So I made it a test file...
+describe('helper', () => {
+  it('works', () => {});
+});

tests/utils.test.ts

@@ -0,0 +1,301 @@
+import * as utils from '../src/utils';
+import { getValidTags } from '../src/utils';
+import * as core from '@actions/core';
+import * as github from '../src/github';
+import { defaultChangelogRules } from '../src/defaults';
+
+jest.spyOn(core, 'debug').mockImplementation(() => {});
+jest.spyOn(core, 'warning').mockImplementation(() => {});
+
+const regex = /^v/;
+
+describe('utils', () => {
+  it('extracts branch from ref', () => {
+    /*
+     * Given
+     */
+    const remoteRef = 'refs/heads/master';
+
+    /*
+     * When
+     */
+    const branch = utils.getBranchFromRef(remoteRef);
+
+    /*
+     * Then
+     */
+    expect(branch).toEqual('master');
+  });
+
+  it('test if ref is PR', () => {
+    /*
+     * Given
+     */
+    const remoteRef = 'refs/pull/123/merge';
+
+    /*
+     * When
+     */
+    const isPullRequest = utils.isPr(remoteRef);
+
+    /*
+     * Then
+     */
+    expect(isPullRequest).toEqual(true);
+  });
+
+  it('returns valid tags', async () => {
+    /*
+     * Given
+     */
+    const testTags = [
+      {
+        name: 'release-1.2.3',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: 'v1.2.3',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+    ];
+    const mockListTags = jest
+      .spyOn(github, 'listTags')
+      .mockImplementation(async () => testTags);
+
+    /*
+     * When
+     */
+    const validTags = await getValidTags(regex, false);
+
+    /*
+     * Then
+     */
+    expect(mockListTags).toHaveBeenCalled();
+    expect(validTags).toHaveLength(1);
+  });
+
+  it('returns sorted tags', async () => {
+    /*
+     * Given
+     */
+    const testTags = [
+      {
+        name: 'v1.2.4-prerelease.1',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: 'v1.2.4-prerelease.2',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: 'v1.2.4-prerelease.0',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: 'v1.2.3',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+    ];
+    const mockListTags = jest
+      .spyOn(github, 'listTags')
+      .mockImplementation(async () => testTags);
+
+    /*
+     * When
+     */
+    const validTags = await getValidTags(regex, false);
+
+    /*
+     * Then
+     */
+    expect(mockListTags).toHaveBeenCalled();
+    expect(validTags[0]).toEqual({
+      name: 'v1.2.4-prerelease.2',
+      commit: { sha: 'string', url: 'string' },
+      zipball_url: 'string',
+      tarball_url: 'string',
+      node_id: 'string',
+    });
+  });
+
+  it('returns only prefixed tags', async () => {
+    /*
+     * Given
+     */
+    const testTags = [
+      {
+        name: 'app2/5.0.0',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: '7.0.0',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+      {
+        name: 'app1/3.0.0',
+        commit: { sha: 'string', url: 'string' },
+        zipball_url: 'string',
+        tarball_url: 'string',
+        node_id: 'string',
+      },
+    ];
+    const mockListTags = jest
+      .spyOn(github, 'listTags')
+      .mockImplementation(async () => testTags);
+    /*
+     * When
+     */
+    const validTags = await getValidTags(/^app1\//, false);
+    /*
+     * Then
+     */
+    expect(mockListTags).toHaveBeenCalled();
+    expect(validTags).toHaveLength(1);
+    expect(validTags[0]).toEqual({
+      name: 'app1/3.0.0',
+      commit: { sha: 'string', url: 'string' },
+      zipball_url: 'string',
+      tarball_url: 'string',
+      node_id: 'string',
+    });
+  });
+
+  describe('custom release types', () => {
+    it('maps custom release types', () => {
+      /*
+       * Given
+       */
+      const customReleasesString =
+        'james:preminor,bond:premajor,007:major:Breaking Changes,feat:minor';
+
+      /*
+       * When
+       */
+      const mappedReleases = utils.mapCustomReleaseRules(customReleasesString);
+
+      /*
+       * Then
+       */
+      expect(mappedReleases).toEqual([
+        { type: 'james', release: 'preminor' },
+        { type: 'bond', release: 'premajor' },
+        { type: '007', release: 'major', section: 'Breaking Changes' },
+        {
+          type: 'feat',
+          release: 'minor',
+          section: defaultChangelogRules['feat'].section,
+        },
+      ]);
+    });
+
+    it('filters out invalid custom release types', () => {
+      /*
+       * Given
+       */
+      const customReleasesString = 'james:pre-release,bond:premajor';
+
+      /*
+       * When
+       */
+      const mappedReleases = utils.mapCustomReleaseRules(customReleasesString);
+
+      /*
+       * Then
+       */
+      expect(mappedReleases).toEqual([{ type: 'bond', release: 'premajor' }]);
+    });
+  });
+
+  describe('method: mergeWithDefaultChangelogRules', () => {
+    it('combines non-existing type rules with default rules', () => {
+      /**
+       * Given
+       */
+      const newRule = {
+        type: 'james',
+        release: 'major',
+        section: '007 Changes',
+      };
+
+      /**
+       * When
+       */
+      const result = utils.mergeWithDefaultChangelogRules([newRule]);
+
+      /**
+       * Then
+       */
+      expect(result).toEqual([
+        ...Object.values(defaultChangelogRules),
+        newRule,
+      ]);
+    });
+
+    it('overwrites existing default type rules with provided rules', () => {
+      /**
+       * Given
+       */
+      const newRule = {
+        type: 'feat',
+        release: 'minor',
+        section: '007 Changes',
+      };
+
+      /**
+       * When
+       */
+      const result = utils.mergeWithDefaultChangelogRules([newRule]);
+      const overWrittenRule = result.find((rule) => rule.type === 'feat');
+
+      /**
+       * Then
+       */
+      expect(overWrittenRule?.section).toBe(newRule.section);
+    });
+
+    it('returns only the rules having changelog section', () => {
+      /**
+       * Given
+       */
+      const mappedReleaseRules = [
+        { type: 'james', release: 'major', section: '007 Changes' },
+        { type: 'bond', release: 'minor', section: undefined },
+      ];
+
+      /**
+       * When
+       */
+      const result = utils.mergeWithDefaultChangelogRules(mappedReleaseRules);
+
+      /**
+       * Then
+       */
+      expect(result).toContainEqual(mappedReleaseRules[0]);
+      expect(result).not.toContainEqual(mappedReleaseRules[1]);
+    });
+  });
+});

tsconfig.json

@@ -1,63 +1,11 @@
 {
   "compilerOptions": {
-    /* Basic Options */
-    // "incremental": true,                   /* Enable incremental compilation */
-    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
-    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-    // "checkJs": true,                       /* Report errors in .js files. */
-    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
-    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
-    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "target": "es6",
+    "module": "commonjs",                     /* Concatenate and emit output to single file. */
     "outDir": "./lib",                        /* Redirect output structure to the directory. */
-    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-    // "composite": true,                     /* Enable project compilation */
-    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
-    // "removeComments": true,                /* Do not emit comments to output. */
-    // "noEmit": true,                        /* Do not emit outputs. */
-    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
-
-    /* Strict Type-Checking Options */
-    "strict": true,                           /* Enable all strict type-checking options. */
-    "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,              /* Enable strict null checks. */
-    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
-    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
-    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
-    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
-    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
-
-    /* Additional Checks */
-    // "noUnusedLocals": true,                /* Report errors on unused locals. */
-    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
-    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
-    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
-
-    /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
-    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
-    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
-    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
-    // "typeRoots": [],                       /* List of folders to include type definitions from. */
-    // "types": [],                           /* Type declaration files to be included in compilation. */
-    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
-    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
-    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
-
-    /* Source Map Options */
-    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
-    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
-    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
-
-    /* Experimental Options */
-    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+    "rootDir": "./src",
+    "strict": true,
+    "esModuleInterop": true
   },
   "exclude": ["node_modules", "**/*.test.ts"]
 }

types/semantic.d.ts

@@ -0,0 +1,51 @@
+/// <reference types="semver" />
+
+declare module '@semantic-release/commit-analyzer' {
+  export function analyzeCommits(
+    config: {
+      preset?: string;
+      config?: string;
+      parserOpts?: any;
+      releaseRules?:
+        | string
+        | {
+            type: string;
+            release: string;
+            scope?: string;
+          }[];
+      presetConfig?: string;
+    },
+    args: {
+      commits: { message: string; hash: string | null }[];
+      logger: { log: (args: any) => void };
+    }
+  ): Promise<any>;
+}
+
+declare module '@semantic-release/release-notes-generator' {
+  export function generateNotes(
+    config: {
+      preset?: string;
+      config?: string;
+      parserOpts?: any;
+      writerOpts?: any;
+      releaseRules?:
+        | string
+        | {
+            type: string;
+            release: string;
+            scope?: string;
+          }[];
+      presetConfig?: any; // Depends on used preset
+    },
+    args: {
+      commits: { message: string; hash: string | null }[];
+      logger: { log: (args: any) => void };
+      options: {
+        repositoryUrl: string;
+      };
+      lastRelease: { gitTag: string };
+      nextRelease: { gitTag: string; version: string };
+    }
+  ): Promise<string>;
+}