## About
**git-cliff** can generate [changelog](https://en.wikipedia.org/wiki/Changelog) files from the [Git](https://git-scm.com/) history by utilizing [conventional commits](#conventional_commits) as well as regex-powered [custom parsers](#commit_parsers). The [changelog template](#templating) can be customized with a [configuration file](#configuration-file) to match the desired format.
Table of Contents
- [About](#about)
- [Installation](#installation)
- [From crates.io](#from-cratesio)
- [From AUR](#from-aur)
- [Binary Releases](#binary-releases)
- [Usage](#usage)
- [Command Line Arguments](#command-line-arguments)
- [Examples](#examples)
- [Docker](#docker)
- [GitHub Action](#github-action)
- [Configuration File](#configuration-file)
- [changelog](#changelog)
- [header](#header)
- [body](#body)
- [trim](#trim)
- [footer](#footer)
- [git](#git)
- [conventional_commits](#conventional_commits)
- [commit_parsers](#commit_parsers)
- [filter_commits](#filter_commits)
- [tag_pattern](#tag_pattern)
- [skip_tags](#skip_tags)
- [Templating](#templating)
- [Context](#context)
- [Conventional Commits](#conventional-commits)
- [Non-Conventional Commits](#non-conventional-commits)
- [Syntax](#syntax)
- [Examples](#examples-1)
- [Basic](#basic)
- [Detailed](#detailed)
- [Scoped](#scoped)
- [Keep a Changelog](#keep-a-changelog)
- [Similar Projects](#similar-projects)
- [License](#license)
- [Copyright](#copyright)
## Installation
### From crates.io
[git-cliff](crates.io/crates/git-cliff) can be installed from crates.io:
```sh
cargo install git-cliff
```
### From AUR
If you are using Arch Linux, [git-cliff](https://aur.archlinux.org/packages/git-cliff/) can be installed from the [AUR](https://aur.archlinux.org/) using an [AUR helper](https://wiki.archlinux.org/title/AUR_helpers):
```sh
paru -S git-cliff
```
### Binary Releases
See the available binaries for different operating systems/architectures from the [releases page](https://github.com/orhun/git-cliff/releases).
## Usage
### Command Line Arguments
```
git-cliff [FLAGS] [OPTIONS] [RANGE]
```
**Flags:**
```
-v, --verbose Increases the logging verbosity
-l, --latest Processes the commits starting from the latest tag
-u, --unreleased Processes the commits that do not belong to a tag
-h, --help Prints help information
-V, --version Prints version information
```
**Options:**
```
-c, --config Sets the configuration file [env: CONFIG=] [default: cliff.toml]
-w, --workdir Sets the working directory [env: WORKDIR=]
-r, --repository Sets the repository to parse commits from [env: REPOSITORY=]
-p, --prepend Prepends entries to the given changelog file [env: PREPEND=]
-o, --output Writes output to the given file [env: OUTPUT=]
-t, --tag Sets the tag for the latest version [env: TAG=]
-b, --body Sets the template for the changelog body [env: TEMPLATE=]
-s, --strip Strips the given parts from the changelog [possible values: header, footer, all]
```
**Args:**
```
Sets the commit range to process
```
### Examples
To simply create a changelog at your projects git root directory with a [configuration file](#configuration-file) (e.g. `cliff.toml`) present:
```sh
# same as running `git-cliff --config cliff.toml --repository .`
# same as running `git-cliff --workdir .`
git cliff
```
Set a tag for the "unreleased" changes:
```sh
git cliff --tag 1.0.0
```
Create a changelog for a certain part of git history:
```sh
# only takes the latest tag into account
# (requires at least 2 tags)
git cliff --latest
# generate changelog for unreleased commits
git cliff --unreleased
git cliff --unreleased --tag 1.0.0
# generate changelog for a specific commit range
git cliff 4c7b043..a440c6e
git cliff 4c7b043..HEAD
git cliff HEAD~2..
```
Save the changelog file to the specified file:
```sh
git cliff --output CHANGELOG.md
```
Prepend new changes to an existing changelog file:
```sh
# 1- changelog header is removed from CHANGELOG.md
# 2- new entries are prepended to CHANGELOG.md without footer part
git cliff --unreleased --tag 1.0.0 --prepend CHANGELOG.md
```
Set/remove the changelog parts:
```sh
git cliff --body $template --strip footer
```
Also, see the [release script](./release.sh) of this project which sets the changelog as a message of an annotated tag.
## Docker
The easiest way of running **git-cliff** (in the git root directory with [configuration file](#configuration-file) present) is to use the [available tags](https://hub.docker.com/repository/docker/orhunp/git-cliff/tags) from [Docker Hub](https://hub.docker.com/repository/docker/orhunp/git-cliff):
```sh
docker run -t -v "$(pwd)":/app/ orhunp/git-cliff:latest
```
Or you can use the image from the [GitHub Package Registry](https://github.com/orhun/git-cliff/packages/841947):
```sh
docker run -t -v "$(pwd)":/app/ docker.pkg.github.com/orhun/git-cliff/git-cliff:latest
```
Also, you can build the image yourself using `docker build -t git-cliff .` command.
## GitHub Action
It is possible to generate changelogs using [GitHub Actions](https://docs.github.com/en/actions) via [git-cliff-action](https://github.com/orhun/git-cliff-action).
```yml
- name: Generate a changelog
uses: orhun/git-cliff-action@v1
with:
config: cliff.toml
args: --verbose
env:
OUTPUT: CHANGELOG.md
```
See the [repository](https://github.com/orhun/git-cliff-action) for other [examples](https://github.com/orhun/git-cliff-action#examples).
Also, see the [continuous deployment workflow](./.github/workflows/cd.yml) of this project which sets the release notes for GitHub releases using this action.
## Configuration File
**git-cliff** configuration file supports [TOML](https://github.com/toml-lang/toml) (preferred) and [YAML](https://yaml.org) formats.
See [cliff.toml](./cliff.toml) for an example.
### changelog
This section contains the configuration options for changelog generation.
```toml
[changelog]
header = "Changelog"
body = """
{% for group, commits in commits | group_by(attribute="group") %}
### {{ group | upper_first }}
{% for commit in commits %}
- {{ commit.message | upper_first }}
{% endfor %}
{% endfor %}
"""
trim = true
footer = ""
```
#### header
Header text that will be added to the beginning of the changelog.
#### body
Body template that represents a single release in the changelog.
See [templating](#templating) for more detail.
#### trim
If set to `true`, leading and trailing whitespaces are removed from the [body](#body).
It is useful for adding indentation to the template for readability, as shown [in the example](#changelog).
#### footer
Footer text that will be added to the end of the changelog.
### git
This section contains the parsing and git related configuration options.
```toml
[git]
conventional_commits = true
commit_parsers = [
{ message = "^feat*", group = "Features"},
{ message = "^fix*", group = "Bug Fixes"},
{ message = "^doc*", group = "Documentation"},
{ message = "^perf*", group = "Performance"},
{ message = "^refactor*", group = "Refactor"},
{ message = "^style*", group = "Styling"},
{ message = "^test*", group = "Testing"},
]
filter_commits = false
tag_pattern = "v[0-9]*"
skip_tags = "v0.1.0-beta.1"
```
#### conventional_commits
If set to `true`, parses the commits according to the [Conventional Commits specifications](https://www.conventionalcommits.org).
> The Conventional Commits specification is a lightweight convention on top of commit messages. It provides an easy set of rules for creating an explicit commit history; which makes it easier to write automated tools on top of. This convention dovetails with SemVer, by describing the features, fixes, and breaking changes made in commit messages.
> The commit message should be structured as follows:
```
[optional scope]:
[optional body]
[optional footer(s)]
```
e.g. `feat(parser): add ability to parse arrays`
#### commit_parsers
An array of commit parsers for determining the commit groups by using regex.
Examples:
- `{ message = "^feat*", group = "Features"}`
- Group the commit as "Features" if the commit message (description) starts with "feat".
- `{ body = ".*security", group = "Security"}`
- Group the commit as "Security" if the commit body contains "security".
- `{ message = ".*deprecated", body = ".*deprecated", group = "Deprecation"}`
- Group the commit as "Deprecation" if the commit body and message contains "deprecated".
- `{ message = "^revert*", skip = true}`
- Skip processing the commit if the commit message (description) starts with "revert".
#### filter_commits
If set to `true`, commits that are not matched by [commit parsers](#commit_parsers) are filtered out.
#### tag_pattern
A glob pattern for matching the git tags.
e.g. It processes the same tags as the output of the following git command:
```sh
git tag --list 'v[0-9]*'
```
#### skip_tags
A regex for skip processing the matched tags.
## Templating
A template is a text where variables and expressions get replaced with values when it is rendered.
### Context
Context is the model that holds the required data for a template rendering. The [JSON](https://en.wikipedia.org/wiki/JSON) format is used in the following examples for the representation of a context.
#### Conventional Commits
> conventional_commits = **true**
For a [conventional commit](#conventional_commits) like this,
```
[scope]:
[body]
[footer(s)]
```
following context is generated to use for templating:
```json
{
"version": "v0.1.0-rc.21",
"commits": [
{
"id": "e795460c9bb7275294d1fa53a9d73258fb51eb10",
"group": " (overrided by commit_parsers)",
"scope": "[scope]",
"message": "",
"body": "[body]",
"footers": ["[footer]", "[footer]"],
"breaking": false
}
],
"commit_id": "a440c6eb26404be4877b7e3ad592bfaa5d4eb210 (release commit)",
"timestamp": 1625169301,
"previous": {
"version": "previous release"
}
}
```
#### Non-Conventional Commits
> conventional_commits = **false**
If [conventional_commits](#conventional_commits) is set to `false`, then some of the fields are omitted from the context or squashed into the `message` field:
```json
{
"version": "v0.1.0-rc.21",
"commits": [
{
"id": "e795460c9bb7275294d1fa53a9d73258fb51eb10",
"group": "(overrided by commit_parsers)",
"message": "(whole commit message including description, footers, etc.)"
}
],
"commit_id": "a440c6eb26404be4877b7e3ad592bfaa5d4eb210 (release commit)",
"timestamp": 1625169301,
"previous": {
"version": "previous release"
}
}
```
### Syntax
**git-cliff** uses [Tera](https://github.com/Keats/tera) as the template engine. It has a syntax based on [Jinja2](http://jinja.pocoo.org/) and [Django](https://docs.djangoproject.com/en/3.1/topics/templates/) templates.
There are 3 kinds of delimiters and those cannot be changed:
- `{{` and `}}` for expressions
- `{%` or `{%-` and `%}` or `-%}` for statements
- `{#` and `#}` for comments
See the [Tera Documentation](https://tera.netlify.app/docs/#templates) for more information about [control structures](https://tera.netlify.app/docs/#control-structures), [built-ins filters](https://tera.netlify.app/docs/#built-ins), etc.
Custom built-in filters that **git-cliff** uses:
- `upper_first`: Converts the first character of a string to uppercase.
### Examples
Examples are based on the following Git history:
```log
* df6aef4 (HEAD -> master) feat(cache): use cache while fetching pages
* a9d4050 feat(config): support multiple file formats
* 06412ac (tag: v1.0.1) chore(release): add release script
* e4fd3cf refactor(parser): expose string functions
* ad27b43 (tag: v1.0.0) docs(example)!: add tested usage example
* 9add0d4 fix(args): rename help argument due to conflict
* a140cef feat(parser): add ability to parse arrays
* 81fbc63 docs(project): add README.md
* a78bc36 Initial commit
```
See [examples](./examples/) directory for example configuration files.
#### [Basic](./cliff.toml)
Raw Output
```
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
- Support multiple file formats
- Use cache while fetching pages
## [1.0.1] - 2021-07-18
### Miscellaneous Tasks
- Add release script
### Refactor
- Expose string functions
## [1.0.0] - 2021-07-18
### Bug Fixes
- Rename help argument due to conflict
### Documentation
- Add README.md
- Add tested usage example
### Features
- Add ability to parse arrays
```
Rendered Output
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
- Support multiple file formats
- Use cache while fetching pages
## [1.0.1] - 2021-07-18
### Miscellaneous Tasks
- Add release script
### Refactor
- Expose string functions
## [1.0.0] - 2021-07-18
### Bug Fixes
- Rename help argument due to conflict
### Documentation
- Add README.md
- Add tested usage example
### Features
- Add ability to parse arrays
#### [Detailed](./examples/detailed.toml)
Raw Output
```
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
- Support multiple file formats ([a9d4050](a9d4050212a18f6b3bd76e2e41fbb9045d268b80))
- Use cache while fetching pages ([df6aef4](df6aef41292f3ffe5887754232e6ea7831c50ba5))
## [1.0.1] - 2021-07-18
[ad27b43](ad27b43e8032671afb4809a1a3ecf12f45c60e0e)...[06412ac](06412ac1dd4071006c465dde6597a21d4367a158)
### Miscellaneous Tasks
- Add release script ([06412ac](06412ac1dd4071006c465dde6597a21d4367a158))
### Refactor
- Expose string functions ([e4fd3cf](e4fd3cf8e2e6f49c0b57f66416e886c37cbb3715))
## [1.0.0] - 2021-07-18
### Bug Fixes
- Rename help argument due to conflict ([9add0d4](9add0d4616dc95a6ea8b01d5e4d233876b6e5e00))
### Documentation
- Add README.md ([81fbc63](81fbc6365484abf0b4f4b05d384175763ad8db44))
- Add tested usage example ([ad27b43](ad27b43e8032671afb4809a1a3ecf12f45c60e0e))
### Features
- Add ability to parse arrays ([a140cef](a140cef0405e0bcbfb5de44ff59e091527d91b38))
```
Rendered Output
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
- Support multiple file formats ([a9d4050](a9d4050212a18f6b3bd76e2e41fbb9045d268b80))
- Use cache while fetching pages ([df6aef4](df6aef41292f3ffe5887754232e6ea7831c50ba5))
## [1.0.1] - 2021-07-18
[ad27b43](ad27b43e8032671afb4809a1a3ecf12f45c60e0e)...[06412ac](06412ac1dd4071006c465dde6597a21d4367a158)
### Miscellaneous Tasks
- Add release script ([06412ac](06412ac1dd4071006c465dde6597a21d4367a158))
### Refactor
- Expose string functions ([e4fd3cf](e4fd3cf8e2e6f49c0b57f66416e886c37cbb3715))
## [1.0.0] - 2021-07-18
### Bug Fixes
- Rename help argument due to conflict ([9add0d4](9add0d4616dc95a6ea8b01d5e4d233876b6e5e00))
### Documentation
- Add README.md ([81fbc63](81fbc6365484abf0b4f4b05d384175763ad8db44))
- Add tested usage example ([ad27b43](ad27b43e8032671afb4809a1a3ecf12f45c60e0e))
### Features
- Add ability to parse arrays ([a140cef](a140cef0405e0bcbfb5de44ff59e091527d91b38))
#### [Scoped](./examples/scoped.toml)
Raw Output
```
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
#### Cache
- Use cache while fetching pages
#### Config
- Support multiple file formats
## [1.0.1] - 2021-07-18
### Miscellaneous Tasks
#### Release
- Add release script
### Refactor
#### Parser
- Expose string functions
## [1.0.0] - 2021-07-18
### Bug Fixes
#### Args
- Rename help argument due to conflict
### Documentation
#### Example
- Add tested usage example
#### Project
- Add README.md
### Features
#### Parser
- Add ability to parse arrays
```
Rendered Output
# Changelog
All notable changes to this project will be documented in this file.
## [unreleased]
### Features
#### Cache
- Use cache while fetching pages
#### Config
- Support multiple file formats
## [1.0.1] - 2021-07-18
### Miscellaneous Tasks
#### Release
- Add release script
### Refactor
#### Parser
- Expose string functions
## [1.0.0] - 2021-07-18
### Bug Fixes
#### Args
- Rename help argument due to conflict
### Documentation
#### Example
- Add tested usage example
#### Project
- Add README.md
### Features
#### Parser
- Add ability to parse arrays
#### [Keep a Changelog](./examples/keepachangelog.toml)
Raw Output
```
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [unreleased]
### Added
- Support multiple file formats
### Changed
- Use cache while fetching pages
## [1.0.1] - 2021-07-18
### Added
- Add release script
### Changed
- Expose string functions
## [1.0.0] - 2021-07-18
### Added
- Add README.md
- Add ability to parse arrays
- Add tested usage example
### Fixed
- Rename help argument due to conflict
```
Rendered Output
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [unreleased]
### Added
- Support multiple file formats
### Changed
- Use cache while fetching pages
## [1.0.1] - 2021-07-18
### Added
- Add release script
### Changed
- Expose string functions
## [1.0.0] - 2021-07-18
### Added
- Add README.md
- Add ability to parse arrays
- Add tested usage example
### Fixed
- Rename help argument due to conflict
## Similar Projects
- [git-journal](https://github.com/saschagrunert/git-journal) - The Git Commit Message and Changelog Generation Framework
- [clog-cli](https://github.com/clog-tool/clog-cli) - Generate beautiful changelogs from your Git commit history
- [relnotes](https://crates.io/crates/relnotes) - A tool to automatically generate release notes for your project.
- [cocogitto](https://github.com/oknozor/cocogitto) - A set of CLI tools for the conventional commit
and semver specifications.
## License
GNU General Public License ([v3.0](https://www.gnu.org/licenses/gpl.txt))
## Copyright
Copyright © 2021, [git-cliff contributors](mailto:git-cliff@protonmail.com)