- introduce experimental (light) commit based changelog generation mode

- FIX https://github.com/mikepenz/release-changelog-builder-action/issues/141
  - this is not fully supported and not documented as it lacks big amounts of the features we know and love
- npm install
- recompile dist

__tests__/releaseNotesBuilder.test.ts

@@ -14,6 +14,7 @@ it('Should match generated changelog (unspecified fromTag)', async () => {
     'v0.0.3',
     false,
     false,
+    false,
     configuration
   )
 
@@ -38,6 +39,7 @@ it('Should use empty placeholder', async () => {
     'v0.0.3',
     false,
     false,
+    false,
     configuration
   )
 
@@ -60,6 +62,7 @@ it('Should fill empty placeholders', async () => {
     'v0.0.3',
     false,
     false,
+    false,
     configuration
   )
 
@@ -84,6 +87,7 @@ it('Should fill `template` placeholders', async () => {
     'v0.0.3',
     false,
     false,
+    false,
     configuration
   )
 
@@ -108,6 +112,7 @@ it('Should fill `template` placeholders, ignore', async () => {
     'v0.9.5',
     false,
     false,
+    false,
     configuration
   )
 
@@ -132,6 +137,7 @@ it('Uncategorized category', async () => {
     'v0.9.5',
     false,
     false,
+    false,
     configuration
   )
 
@@ -141,3 +147,30 @@ it('Uncategorized category', async () => {
     `## 🚀 Features\n\n- Enhance sorting by using proper semver\n   - PR: #51\n\n## 📦 Uncategorized\n\n- Bump @types/node from 14.11.8 to 14.11.10\n   - PR: #47\n- Adjust code to move fromTag resolving to main.ts\n   - PR: #48\n- Improve test cases\n   - PR: #49\n- dev -> main\n   - PR: #52\n- Update package.json to updated description\n   - PR: #53\n- dev -> main\n   - PR: #54\n\n\n\nUncategorized:\n- Bump @types/node from 14.11.8 to 14.11.10\n   - PR: #47\n- Adjust code to move fromTag resolving to main.ts\n   - PR: #48\n- Improve test cases\n   - PR: #49\n- dev -> main\n   - PR: #52\n- Update package.json to updated description\n   - PR: #53\n- dev -> main\n   - PR: #54\n\n\nIgnored:\n- New additional placeholders for \`template\` and \`empty_template\`\n   - PR: #50\n\n\n6\n1`
   )
 })
+
+
+
+it('Verify commit based changelog', async () => {
+  const configuration = resolveConfiguration(
+    '',
+    'configs_test/configuration_commits.json'
+  )
+  const releaseNotesBuilder = new ReleaseNotesBuilder(
+    null,
+    '.',
+    'mikepenz',
+    'release-changelog-builder-action',
+    'v0.0.1',
+    'v0.0.3',
+    false,
+    false,
+    true,
+    configuration
+  )
+
+  const changeLog = await releaseNotesBuilder.build()
+  console.log(changeLog)
+  expect(changeLog).toStrictEqual(
+    `## 📦 Uncategorized\n\n- - introduce proper approach to retrieve tag before a given tag\n\n- - configure test case\n\n- Merge pull request #10 from mikepenz/feature/specify_test\n\n\n\n\nUncategorized:\n- - introduce proper approach to retrieve tag before a given tag\n\n- - configure test case\n\n- Merge pull request #10 from mikepenz/feature/specify_test\n\n\n\nIgnored:\n\n\n3\n0`
+  )
+})

action.yml

@@ -23,6 +23,9 @@ inputs:
   failOnError:
     description: 'Defines if the action should result in a build failure, if an error was discovered'
     default: "false"
+  commitMode:
+    description: 'Enables a `light` commit based mode. This mode generates changelogs based on the commits. Please note that this is not officially supported, and lacks a lot of features only possible with PRs.'
+    default: "false"
   outputFile:
     description: 'If defined, the changelog will get written to this file. (relative to the checkout dir)'
   token:

configs_test/configuration_commits.json

@@ -0,0 +1,11 @@
+{
+    "categories": [
+        {
+            "title": "## 📦 Uncategorized",
+            "labels": []
+        }
+    ],
+    "template": "${{CHANGELOG}}\n\nUncategorized:\n${{UNCATEGORIZED}}\n\nIgnored:\n${{IGNORED}}\n\n${{UNCATEGORIZED_COUNT}}\n${{IGNORED_COUNT}}",
+    "pr_template": "- ${{TITLE}}\n",
+    "empty_template": "${{OWNER}}\n${{REPO}}\n${{FROM_TAG}}\n${{TO_TAG}}"
+}

src/main.ts

@@ -33,6 +33,7 @@ async function run(): Promise<void> {
     // read in flags
     const ignorePreReleases = core.getInput('ignorePreReleases') === 'true'
     const failOnError = core.getInput('failOnError') === 'true'
+    const commitMode = core.getInput('commitMode') === 'true'
 
     const result = await new ReleaseNotesBuilder(
       token,
@@ -43,6 +44,7 @@ async function run(): Promise<void> {
       toTag,
       failOnError,
       ignorePreReleases,
+      commitMode,
       configuration
     ).build()
 

src/releaseNotes.ts

@@ -12,6 +12,7 @@ export interface ReleaseNotesOptions {
   fromTag: string // the tag/ref to start from
   toTag: string // the tag/ref up to
   failOnError: boolean // defines if we should fail the action in case of an error
+  commitMode: boolean // defines if we use the alternative commit based mode. note: this is only partially supported
   configuration: Configuration // the configuration as defined in `configuration.ts`
 }
 
@@ -21,9 +22,17 @@ export class ReleaseNotes {
   async pull(): Promise<string | null> {
     const {configuration} = this.options
 
-    core.startGroup(`🚀 Load pull requests`)
+    let mergedPullRequests: PullRequestInfo[]
-    const mergedPullRequests = await this.getMergedPullRequests(this.octokit)
+    if (!this.options.commitMode) {
-    core.endGroup()
+      core.startGroup(`🚀 Load pull requests`)
+      mergedPullRequests = await this.getMergedPullRequests(this.octokit)
+      core.endGroup()
+    } else {
+      core.startGroup(`🚀 Load commit history`)
+      core.info(`⚠️ Executing experimental commit mode`)
+      mergedPullRequests = await this.generateCommitPRs(this.octokit)
+      core.endGroup()
+    }
 
     if (mergedPullRequests.length === 0) {
       core.warning(`⚠️ No pull requests found`)
@@ -40,17 +49,8 @@ export class ReleaseNotes {
     return resultChangelog
   }
 
-  private async getMergedPullRequests(
+  private async getCommitHistory(octokit: Octokit): Promise<CommitInfo[]> {
-    octokit: Octokit
+    const {owner, repo, fromTag, toTag, failOnError} = this.options
-  ): Promise<PullRequestInfo[]> {
-    const {
-      owner,
-      repo,
-      fromTag,
-      toTag,
-      failOnError,
-      configuration
-    } = this.options
     core.info(`ℹ️ Comparing ${owner}/${repo} - '${fromTag}...${toTag}'`)
 
     const commitsApi = new Commits(octokit)
@@ -69,6 +69,19 @@ export class ReleaseNotes {
       return []
     }
 
+    return commits
+  }
+
+  private async getMergedPullRequests(
+    octokit: Octokit
+  ): Promise<PullRequestInfo[]> {
+    const {owner, repo, configuration} = this.options
+
+    const commits = await this.getCommitHistory(octokit)
+    if (commits.length === 0) {
+      return []
+    }
+
     const firstCommit = commits[0]
     const lastCommit = commits[commits.length - 1]
     let fromDate = firstCommit.date
@@ -120,4 +133,30 @@ export class ReleaseNotes {
       return releaseCommitHashes.includes(pr.mergeCommitSha)
     })
   }
+
+  private async generateCommitPRs(
+    octokit: Octokit
+  ): Promise<PullRequestInfo[]> {
+    const commits = await this.getCommitHistory(octokit)
+    if (commits.length === 0) {
+      return []
+    }
+
+    return commits.map(function (commit) {
+      return {
+        number: 0,
+        title: commit.summary,
+        htmlURL: '',
+        mergedAt: commit.date,
+        mergeCommitSha: '',
+        author: commit.author || '',
+        repoName: '',
+        labels: [],
+        milestone: '',
+        body: commit.message || '',
+        assignees: [],
+        requestedReviewers: []
+      }
+    })
+  }
 }

src/releaseNotesBuilder.ts

@@ -18,6 +18,7 @@ export class ReleaseNotesBuilder {
     private toTag: string | null,
     private failOnError: boolean,
     private ignorePreReleases: boolean,
+    private commitMode: boolean,
     private configuration: Configuration
   ) {}
 
@@ -104,6 +105,7 @@ export class ReleaseNotesBuilder {
       fromTag: this.fromTag,
       toTag: this.toTag,
       failOnError: this.failOnError,
+      commitMode: this.commitMode,
       configuration: this.configuration
     }
     const releaseNotes = new ReleaseNotes(octokit, options)