release-please（请释放）

release-please

Overview

release-please automates versioning and releases by analyzing Conventional Commit messages:

1. Push conventional commits to your default branch
2. release-please creates/updates a Release PR with version bump and changelog
3. Merge the Release PR to trigger a GitHub Release
4. Publish step runs when a release is created (npm, PyPI, crates.io, etc.)

release-please handles version determination, changelog generation, and git tagging. You write good commit messages; it does the rest.

Commit Message Assistance

When a user asks for help writing a commit message (not setting up a pipeline):

1. Ask what changed — "What did you change and why?" (skip if already described)
2. Suggest the type — Pick from the type table below, explain why that type fits
3. Draft the message — Write the full commit message (header + body if needed + footers)
4. Confirm — Present it for the user to approve or adjust

If the change is breaking, always include a BREAKING CHANGE: footer explaining migration impact.

Pipeline Setup Flow

When a user wants to set up release-please, follow this interactive protocol.

If .github/workflows/release.yml (or similar) already exists, read it first, compare against the templates in references/workflow-templates.md, and suggest specific improvements rather than replacing it wholesale. Common improvement opportunities: missing concurrency groups, publish not gated on release_created, missing idempotent publish check, overly broad permissions.

Step 1: Detect Project Type

Scan the repository for package manifests:

If multiple manifests exist at the root, ask which is primary. If none found, use simple.

Step 2: Ask Configuration Questions

Ask these questions (skip any already answered or obvious from context):

1. Is this a monorepo? (multiple packages in subdirectories)
2. What is the default branch? (default: main)
3. Do you need pre-release support? (manual alpha/beta/rc releases)
4. Where do you publish? (npm, GitHub Packages, PyPI, Maven Central, crates.io, Docker, none)
5. What is the current version? (check package manifest, default: 0.0.0)

Step 3: Generate Files

Create three files based on the answers:

release-please-config.json

{
  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
  "packages": {
    ".": {
      "release-type": "node",
      "changelog-path": "CHANGELOG.md",
      "bump-minor-pre-major": true,
      "bump-patch-for-minor-pre-major": false,
      "draft": false,
      "prerelease": false,
      "versioning": "default",
      "extra-files": []
    }
  }
}

Adjust release-type based on detected project type. For monorepos, add multiple entries under packages with component names.

.release-please-manifest.json

{
  ".": "1.0.0"
}

Set to the current released version. Use "0.0.0" for new projects.

.github/workflows/release.yml

For Node.js → npm public registry (most common), use this base template:

name: Release

on:
  push:
    branches: [main]

permissions:
  contents: write
  pull-requests: write

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: false

jobs:
  release-please:
    runs-on: ubuntu-latest
    outputs:
      release_created: ${{ steps.release.outputs.release_created }}
      tag_name: ${{ steps.release.outputs.tag_name }}
      version: ${{ steps.release.outputs.version }}
    steps:
      - uses: googleapis/release-please-action@v4
        id: release

  publish:
    needs: release-please
    if: needs.release-please.outputs.release_created == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 22
          registry-url: https://registry.npmjs.org
      - run: npm ci
      - run: npm publish --provenance --access public
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

For other ecosystems, see references/workflow-templates.md for complete templates including:

• Node.js → GitHub Packages (with idempotent publish check)
• Python → PyPI (trusted publishers)
• Java → Maven Central
• Go (tags only, optional GoReleaser)
• Rust → crates.io
• Docker (build + push with semver tags)
• Monorepo (per-package publish jobs)
• Pre-release pattern (workflow_dispatch with version resolution)

Always customize:

• Replace main with the actual default branch if different
• Adjust Node version, Python version, Java version, etc.
• Add registry-specific secrets configuration
• If pre-release support is needed, use the pre-release template from references/workflow-templates.md

Configuration Quick Reference

Monorepo Quick Setup

// release-please-config.json
{
  "packages": {
    "packages/core": { "release-type": "node", "component": "core" },
    "packages/cli": { "release-type": "node", "component": "cli" }
  }
}

// .release-please-manifest.json
{ "packages/core": "0.0.0", "packages/cli": "0.0.0" }

Use component names as commit scopes: feat(core): add streaming support

For full configuration options, see references/config-options.md.

Commit Message Guide

release-please reads commit messages to determine version bumps and generate changelogs. Every commit to the default branch must follow Conventional Commits.

Format

<type>(<scope>): <description>

[optional body]

[optional footer(s)]

• Use imperative present tense: "add" not "added"
• Do not capitalize the first letter of the description
• Do not end with a period

Type → Version Bump

Breaking changes (any type with ! or BREAKING CHANGE: footer) → Major bump.

Breaking Change Examples

feat(api)!: redesign authentication flow

BREAKING CHANGE: /auth/login now requires OAuth2 tokens instead of API keys.

refactor(database): migrate from MongoDB to PostgreSQL

BREAKING CHANGE: all database connection strings must be updated.

Special Footers

Quick Examples

feat(booking): add search by date range endpoint
fix(auth): resolve token refresh race condition
deps: upgrade @nestjs/core to v11.0.0
test(scheduler): add unit tests for cron parser
chore: update .gitignore

No AI Co-Author Trailers

NEVER add Co-Authored-By trailers for AI agents in commit messages. These pollute changelogs and git history.

For the complete commit conventions reference with 15+ examples, scopes guide, and anti-patterns, see references/commit-conventions.md.

Best Practices

Squash Merges

Configure your repository to use squash merges for feature branches. This ensures each PR produces a single conventional commit, keeping the changelog clean. Set the squash commit message to use the PR title (which should be a conventional commit message).

Permissions

The GitHub Action needs contents: write and pull-requests: write at minimum. Add packages: write or id-token: write for publish steps as needed. Use the principle of least privilege — grant permissions per-job, not at workflow level.

Concurrency

Always set cancel-in-progress: false for release workflows. Canceling a release mid-way can leave partial state (tags without releases, PRs in inconsistent state).

Publish Gating

Never publish in the release-please job itself. Use a separate publish job gated on release_created == 'true'. This separates concerns and makes retries easier.

Idempotent Publish

Check if the version already exists in the registry before publishing. This prevents failures on workflow re-runs:

- name: Check if version exists
  id: check
  run: |
    PACKAGE_NAME=$(node -p "require('./package.json').name")
    VERSION=$(node -p "require('./package.json').version")
    if npm view "${PACKAGE_NAME}@${VERSION}" version 2>/dev/null; then
      echo "exists=true" >> "$GITHUB_OUTPUT"
    else
      echo "exists=false" >> "$GITHUB_OUTPUT"
    fi
- if: steps.check.outputs.exists == 'false'
  run: npm publish

Bootstrapping Existing Projects

When adding release-please to a project with existing releases:

1. Set .release-please-manifest.json to your current version
2. Merge the setup PR with a chore: commit
3. release-please will create the next release PR based on subsequent commits
4. Alternatively, use Release-As: x.x.x footer to force a starting version

Troubleshooting

No Release PR Created

• Ensure commits since the last release include at least one releasable type (feat, fix, deps)
• Check that commits are on the correct branch (must match workflow trigger)
• Verify release-please-config.json and manifest exist and are valid JSON
• Check Actions logs for permission errors

Wrong Version Bump

• Review commit messages — chore: won't trigger a release, feat: triggers minor
• Check for BREAKING CHANGE: footers that may trigger an unexpected major bump
• Use Release-As: x.x.x footer to override if needed

Pre-Release Flow

• Pre-releases use workflow_dispatch, not automatic push triggers
• The pre-release identifier is appended to the current version: 1.2.3-alpha.1
• Use the next npm tag (or equivalent) for pre-releases, latest for stable
• See the pre-release template in references/workflow-templates.md

Token / Permission Issues

• Default GITHUB_TOKEN works for release-please PRs and releases
• Publishing to external registries requires dedicated secrets (NPM_TOKEN, etc.)
• GitHub Packages publishing uses GITHUB_TOKEN with packages: write permission
• For PyPI, use trusted publishers instead of API tokens

References