Mike Penz
c6ed215bc2
- introduce placeholder support into `empty_template` - introduce new placeholders for templates, update README with new placeholders
334 lines
18 KiB
Markdown
334 lines
18 KiB
Markdown
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:octocat:📄🔖📦
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<h1 align="center">
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release-changelog-builder-action
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</h1>
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<p align="center">
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... a GitHub action that builds your release notes fast, easy and exactly the way you want.
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</p>
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<div align="center">
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<img src=".github/images/release_changelog_builder_collapsed.png"/>
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</div>
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<div align="center">
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<a href="https://github.com/mikepenz/release-changelog-builder-action/actions">
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<img src="https://github.com/mikepenz/release-changelog-builder-action/workflows/CI/badge.svg"/>
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</a>
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</div>
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<br />
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-------
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<p align="center">
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<a href="#whats-included-">What's included 🚀</a> •
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<a href="#setup">Setup 🛠️</a> •
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<a href="#full-sample-%EF%B8%8F">Sample 🖥️</a> •
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<a href="#customization-%EF%B8%8F">Customization 🖍️</a> •
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<a href="#contribute-">Contribute 🧬</a> •
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<a href="#license">License 📓</a>
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</p>
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-------
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### What's included 🚀
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- Super simple integration
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- ...even on huge repositories with hundreds of tags
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- Parallel releases support
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- Blazingly fast execution
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- Supports any git project
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- Highly flexible configuration
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- Lightweight
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- Supports any branch
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- Rich build log output
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-------
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## Setup
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### Configure the workflow
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Specify the action as part of your GitHub actions workflow:
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```yml
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- name: "Build Changelog"
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id: build_changelog
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uses: mikepenz/release-changelog-builder-action@{latest-release}
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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```
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By default the action will try to automatically retrieve the `tag` from the current commit and automatically resolve the `tag` before. Read more about this here.
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### Action outputs
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After action execution it will return the `changelog` and additional information as step output. You can use it in any follow-up step by referencing the output by referencing it via the id of the step. For example `build_changelog`.
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```yml
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# ${{steps.{CHANGELOG_STEP_ID}.outputs.changelog}}
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${{steps.build_changelog.outputs.changelog}}
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```
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A full set list of possible output values for this action.
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| **Output** | **Description** |
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|---------------------|---------------------------------------------------------------------------------------------------------------------------|
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| `outputs.changelog` | The built release changelog built from the merged pull requests |
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| `outputs.owner` | Specifies the owner of the repository processed |
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| `outputs.repo` | Describes the repository name, which was processed |
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| `outputs.fromTag` | Defines the `fromTag` which describes the lower bound to process pull requests for |
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| `outputs.toTag` | Defines the `toTag` which describes the upper bound to process pull request for |
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| `outputs.failed` | Defines if there was an issue with the action run, and the changelog may not have been generated correctly. [true, false] |
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## Full Sample 🖥️
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Below is a complete example showcasing how to define a build, which is executed when tagging the project. It consists of:
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- Prepare tag, via the GITHUB_REF environment variable
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- Build changelog, given the tag
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- Create release on GitHub - specifying body with constructed changelog
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```yml
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name: 'CI'
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on:
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push:
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tags:
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- '*'
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release:
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if: startsWith(github.ref, 'refs/tags/')
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runs-on: ubuntu-latest
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steps:
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- name: Build Changelog
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id: github_release
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uses: mikepenz/release-changelog-builder-action@main
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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- name: Create Release
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uses: actions/create-release@v1
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with:
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tag_name: ${{ github.ref }}
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release_name: ${{ github.ref }}
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body: ${{steps.github_release.outputs.changelog}}
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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```
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## Customization 🖍️
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### Configuration
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The action supports flexible configuration options to modify vast areas of its behavior. To do so, provide the configuration file to the workflow using the `configuration` setting.
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```yml
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- name: "Build Changelog"
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uses: mikepenz/release-changelog-builder-action@{latest-release}
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with:
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configuration: "configuration.json"
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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```
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This configuration is a `.json` file in the following format.
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```json
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{
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"categories": [
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{
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"title": "## 🚀 Features",
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"labels": ["feature"]
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},
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{
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"title": "## 🐛 Fixes",
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"labels": ["fix"]
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},
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{
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"title": "## 🧪 Tests",
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"labels": ["test"]
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}
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],
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"sort": "ASC",
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"template": "${{CHANGELOG}}\n\n<details>\n<summary>Uncategorized</summary>\n\n${{UNCATEGORIZED}}\n</details>",
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"pr_template": "- ${{TITLE}}\n - PR: #${{NUMBER}}",
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"empty_template": "- no changes",
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"transformers": [
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{
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"pattern": "[\\-\\*] (\\[(...|TEST|CI|SKIP)\\])( )?(.+?)\n(.+?[\\-\\*] )(.+)",
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"target": "- $4\n - $6"
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}
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],
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"max_tags_to_fetch": 200,
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"max_pull_requests": 200,
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"max_back_track_time_days": 90,
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"exclude_merge_branches": [
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"Owner/qa"
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]
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}
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```
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Any section of the configuration can be omitted to have defaults apply.
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Defaults for the configuration can be found in the [configuration.ts](https://github.com/mikepenz/release-changelog-builder-action/blob/develop/src/configuration.ts)
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Please see the [Configuration Specification](#configuration-specification) for detailed descriptions on the offered configuration options.
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### Advanced workflow specification
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For advanced use cases additional settings can be provided to the action
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```yml
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- name: "Complex Configuration"
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id: build_changelog
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if: startsWith(github.ref, 'refs/tags/')
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uses: mikepenz/release-changelog-builder-action@{latest-release}
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with:
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configuration: "configuration_complex.json"
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owner: "mikepenz"
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repo: "release-changelog-builder-action"
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ignorePreReleases: "false"
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fromTag: "0.3.0"
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toTag: "0.5.0"
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token: ${{ secrets.PAT }}
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```
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💡 All input values are optional. It is only required to provide the `token` either via the input, or as `env` variable.
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| **Input** | **Description** |
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|-------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `configuration` | Relative path, to the `configuration.json` file, providing additional configurations |
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| `owner` | The owner of the repository to generate the changelog for |
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| `repo` | Name of the repository we want to process |
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| `fromTag` | Defines the 'start' from where the changelog will consider merged pull requests |
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| `toTag` | Defines until which tag the changelog will consider merged pull requests |
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| `path` | Allows to specify an alternative sub directory, to use as base |
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| `token` | Alternative config to specify token. You should prefer `env.GITHUB_TOKEN` instead though |
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| `ignorePreReleases` | Allows to ignore pre-releases for changelog generation (E.g. for 1.0.1... 1.0.0-rc02 <- ignore, 1.0.0 <- pick). Only used if `fromTag` was not specified. Default: false |
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| `failOnError` | Defines if the action will result in a build failure if problems occurred. Default: false |
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💡 `${{ secrets.GITHUB_TOKEN }}` only grants rights to the current repository, for other repositories please use a PAT (Personal Access Token).
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### PR Template placeholders
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Table of supported placeholders allowed to be used in the `pr_template` configuration.
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| **Placeholder** | **Description** |
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|------------------|-------------------------------------------------------------|
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| `${{NUMBER}}` | The number referencing this pull request. E.g. 13 |
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| `${{TITLE}}` | Specified title of the merged pull request |
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| `${{URL}}` | Url linking to the pull request on GitHub |
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| `${{MERGED_AT}}` | The ISO time, the pull request was merged at |
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| `${{AUTHOR}}` | Author creating and opening the pull request |
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| `${{LABELS}}` | The labels associated with this pull request, joined by `,` |
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| `${{MILESTONE}}` | Milestone this PR was part of, as assigned on GitHub |
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| `${{BODY}}` | Description/Body of the pull request as specified on GitHub |
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| `${{ASSIGNEES}}` | Login names of assigned GitHub users, joined by `,` |
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| `${{REVIEWERS}}` | GitHub Login names of specified reviewers, joined by `,` |
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### Template placeholders
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Table of supported placeholders allowed to be used in the `template` and `empty_template` (only supports placeholder marked for empty) configuration.
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| **Placeholder** | **Description** | **Empty** |
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|----------------------------|----------------------------------------------------------------------------------------------------|:---------:|
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| `${{CHANGELOG}}` | The contents of the changelog, matching the labels as specified in the categories configuration | |
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| `${{UNCATEGORIZED}}` | All pull requests not matching a specified label in categories | |
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| `${{OWNER}}` | Describes the owner of the repository the changelog was generated for | x |
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| `${{REPO}}` | The repository name of the repo the changelog was generated for | x |
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| `${{FROM_TAG}}` | Defines the 'start' from where the changelog did consider merged pull requests | x |
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| `${{TO_TAG}}` | Defines until which tag the changelog did consider merged pull requests | x |
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| `${{CATEGORIZED_COUNT}}` | The count of PRs which were categorized | |
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| `${{UNCATEGORIZED_COUNT}}` | The count of PRs and changes which were not categorized. No label overlapping with category labels | |
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### Configuration Specification
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Table of descriptions for the `configuration.json` options.
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| **Input** | **Description** |
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|--------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| categories | An array of `category` specifications, offering a flexible way to group changes into categories |
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| category.title | The display name of a category in the changelog |
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| category.labels | An array of labels, to match pull request labels against. If any PR label, matches any category label, the pull request will show up under this category |
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| sort | The sort order of pull requests. [ASC, DESC] |
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| template | Specifies the global template to pick for creating the changelog. See [Template placeholders](#template-placeholders) for possible values |
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| pr_template | Defines the per pull request template. See [PR Template placeholders](#pr-template-placeholders) for possible values |
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| empty_template | Template to pick if no changes are detected. See [Template placeholders](#template-placeholders) for possible values |
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| transformers | An array of `transform` specifications, offering a flexible API to modify the text per pull request. This is applied on the change text created with `pr_template`. `transformers` are executed per change, in the order specified |
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| transformer.pattern | A `regex` pattern, extracting values of the change message. |
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| transformer.target | The result pattern, the regex groups will be filled into. Allows for full transformation of a pull request message. Including potentially specified texts |
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| max_tags_to_fetch | The maximum amount of tags to load from the API to find the previous tag. Loaded paginated with 100 per page |
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| max_pull_requests | The maximum amount of pull requests to load from the API. Loaded paginated with 30 per page |
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| max_back_track_time_days | Defines the max amount of days to go back in time per changelog |
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| exclude_merge_branches | An array of branches to be ignored from processing as merge commits |
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## Contribute 🧬
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```bash
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# Install the dependencies
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$ npm install
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# Build the typescript and package it for distribution
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$ npm run build && npm run package
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# Run the tests, use to debug, and test it out
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$ npm test
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# Verify lint is happy
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$ npm run lint -- --fix
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```
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It's suggested to export the token to your path before running the tests so that API calls can be done to GitHub.
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```bash
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export GITHUB_TOKEN=your_personal_github_pat
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```
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## Developed By
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* Mike Penz
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* [mikepenz.com](http://mikepenz.com) - <mikepenz@gmail.com>
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* [paypal.me/mikepenz](http://paypal.me/mikepenz)
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## Credits
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- Core parts of the PR fetching logic are based on [pull-release-notes](https://github.com/nblagoev/pull-release-notes)
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- Nikolay Blagoev - [GitHub](https://github.com/nblagoev/)
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- [action-gh-release](https://github.com/softprops/action-gh-release) for a few great README ideas
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## License
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Copyright for portions of pr-release-notes are held by Nikolay Blagoev, 2019-2020 as part of project pull-release-notes.
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All other copyright for project pr-release-notes are held by Mike Penz, 2020.
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## Fork License
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All patches and changes applied to the original source are licensed under the Apache 2.0 license.
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Copyright 2020 Mike Penz
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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## Sample result changelog
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<div align="center">
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<a href="https://github.com/mikepenz/release-changelog-builder-action/runs/1270879787"><img src=".github/images/release_changelog_builder_expanded.png"/></a>
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</div>
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<div align="center">
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<a href="https://github.com/mikepenz/release-changelog-builder-action/releases/tag/v0.9.0"><img src=".github/images/release_changelog_result.png"/></a>
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</div>
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