go-commitlinter

go-commitlinter is simple commit message linter.

Quick Start

go install github.com/masahiro331/go-commitlinter@0.1.0
echo "go-commitlinter" >> .git/hooks/commit-msg
chmod 755 .git/hooks/commit-msg

Description

The go-commitlinter will detect and fail a commit message that is not in the following format.

<type>(<scope>): <subject>

The type and scope should always be lowercase as shown below.
The <scope> can be empty (e.g. if the change is a global or difficult to assign to a single component), in which case the parentheses are omitted.

Allowed <type> values:

• feat for a new feature for the user, not a new feature for build script.
• fix for a bug fix for the user, not a fix to a build script.
• perf for performance improvements.
• docs for changes to the documentation.
• style for formatting changes, missing semicolons, etc.
• refactor for refactoring production code, e.g. renaming a variable.
• test for adding missing tests, refactoring tests; no production code change.
• build for updating build configuration, development tools or other changes irrelevant to the user.
• chore for updates that do not apply to the above, such as dependency updates.

<scope> example:

• parser
• controller
• some package namespace
• etc...

Other use cases

For example, if you want to validate the title of a pull request.
Add the following github actions workflow.

name: Test
on:
  pull_request:
    types: [edited, opened]
env:
  GO_VERSION: "1.17"
jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Go pull request message linter
        uses: masahiro331/go-commitlinter@0.1.1
        env:
          TITLE: ${{ github.event.pull_request.title }}

Custom Rules

This tool is able to custom rules.

go-commitlinter -rule rule.yaml

This is default rules.

skip_prefixes:
  - 'Merge branch '
  - 'BREAKING: '
type_rules:
  - type: feat
    description: for a new feature for the user, not a new feature for build script.
  - type: fix
    description: for a bug fix for the user, not a fix to a build script.
  - type: perf
    description: for performance improvements.
  - type: docs
    description: for changes to the documentation.
  - type: style
    description: for formatting changes, missing semicolons, etc.
  - type: refactor
    description: for refactoring production code, e.g. renaming a variable.
  - type: test
    description: for adding missing tests, refactoring tests; no production code change.
  - type: build
    description: for updating build configuration, development tools or other changes irrelevant to the user.
  - type: chore
    description: for updates that do not apply to the above, such as dependency updates.
reference: https://github.com/masahiro331/go-commitlinter#description
style_doc: The type and scope should always be lowercase.
scope_doc: The <scope> can be empty (e.g. if the change is a global or difficult to assign to a single component), in which case the parentheses are omitted.
subject_doc: The first letter of <subject> should be lowercase.

• skip_prefixes: Use skip some titles. for example, merge commit "Merge branch 'main' of ....."
• type_rules: Use it to add your own type.
• reference: Include a link to the CONTRIBUTING GUILD.
• style_doc: Describe the specifications of style.
• scope_doc: Describe the specifications of scope.
• subject_doc: Describe the specifications of subject.