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Pyhton module and CLI tool for validating and modifying Changelogs in "keep-a-changelog" format"

Project description

python-kacl

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A tool for verifying and modifying changelog in the Keep-A-Change-Log format.

Installation

python-kacl and it kacl-cli can be installed either

  • from source
  • via the pip package python-kacl
  • docker

All approaches are described in detail within this section.

From Source

git clone https://github.com/mschmieder/python-kacl
cd python-kacl

Global Install

pip3 install .

Developer Mode

pip3 install -e .

Pip Package

The package can simply be retrieves using

pip3 install python-kacl

Docker

docker pull mschmieder/kacl-cli:latest

The kacl-cli is defined as entrypoint. Therefore the image can be used like this

docker -v $(pwd):$(pwd) -w $(pwd) mschmieder/kacl-cli:latest verify

CLI

Usage: kacl-cli [OPTIONS] COMMAND [ARGS]...

Options:
  -c, --config PATH  Path to kacl config file  [default: .kacl.conf]
  -f, --file PATH    Path to changelog file  [default: CHANGELOG.md]
  --help             Show this message and exit.

Commands:
  add      Adds a given message to a specified unreleased section.
  get      Returns a given version from the Changelog
  new      Creates a new changlog.
  release  Creates a release for the latest 'unreleased' changes.
  verify   Veryfies if the changelog is in "keep-a-changlog" format.

Create a Changelog

Usage: kacl-cli new [OPTIONS]

  Creates a new changlog.

Options:
  -o, --output-file PATH  File to write the created changelog to.
  --help                  Show this message and exit.

Usage

kacl-cli new

Creates the following changelog

# 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

Verify a Changelog

Usage: kacl-cli verify [OPTIONS]

  Veryfies if the changelog is in "keep-a-changlog" format. Use '--json' get
  JSON formatted output that can be easier integrated into CI workflows.
  Exit code is the number of identified errors.

Options:
  --json  Print validation output as yaml
  --help  Show this message and exit.

Usage

kacl-cli verify

JSON Output

kacl-cli verify --json
{
    "errors": [
        {
            "end_character_pos": 8,
            "error_message": "Versions need to be decorated with a release date in the following format 'YYYY-MM-DD'",
            "line": "## 1.0.0",
            "line_number": 8,
            "start_char_pos": 0
        },
        {
            "end_character_pos": 10,
            "error_message": "\"Hacked\" is not a valid section for a version. Options are [Added,Changed,Deprecated,Removed,Fixed,Security]",
            "line": "### Hacked",
            "line_number": 12,
            "start_char_pos": 4
        }
    ],
    "valid": false
}

Print a single release changelog

Usage

kacl-cli get 0.2.2
## [0.2.2] - 2018-01-16

### Added

- Many prior version. This was added as first entry in CHANGELOG when it was added to this project.

Add an entry to an unreleased section

Usage: kacl-cli add [OPTIONS] SECTION MESSAGE

  Adds a given message to a specified unreleased section. Use '--modify' to
  directly modify the changelog file.

Options:
  -m, --modify  This option will add the changes directly into changelog file
  --help        Show this message and exit.

Usage

kacl-cli add fixed 'We fixed some bad issues' --modify
kacl-cli add added 'We just added some new cool stuff' --modify
kacl-cli add changed 'And changed things a bit' --modify

Prepare a Changelog for a Release

Usage: kacl-cli release [OPTIONS] VERSION

  Creates a release for the latest 'unreleased' changes. Use '--modify' to
  directly modify the changelog file. You can automatically use the latest
  version by using the version keywords 'major', 'minor', 'patch'

  Example:

      kacl-cli release 1.0.0

      kacl-cli release major|minor|patch

Options:
  -m, --modify            This option will add the changes directly into
                          changelog file.
  -l, --link TEXT         A url that the version will be linked with.
  -c, --commit            If passed this will create a git commit with the
                          changed Changelog.
  --commit-message TEXT   The commit message to use when using --commit flag
  -t, --tag               If passed this will create a git tag for the newly
                          released version.
  --tag-name TEXT         The tag name to use when using --tag flag
  --tag-description TEXT  The tag description text to use when using --tag
                          flag
  -d, --allow-dirty       If passed this will allow to commit/tag even on a
                          "dirty".
  --help                  Show this message and exit.

Messages (--commit-message, --tag-name, --tag-description)

This is templated using the Python Format String Syntax. Available in the template context are latest_version and new_version as well as all environment variables (prefixed with $). You can also use the variables now or utcnow to get a current timestamp. Both accept datetime formatting (when used like as in {now:%d.%m.%Y}). Also available as --message (e.g.: kacl-cli release patch --commit --commit--message '[{now:%Y-%m-%d}] Jenkins Build {$BUILD_NUMBER}: {new_version}')

Usage with fixed version

kacl-cli release 1.0.0

Example CHANGELOG.md (before):

# 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
- added default content checks
- cli will now check for valid semantic version when using `release` command
- implemented basic cli with `new`, `get`, `release`, `verify`
- added `--json` option to `verify` command

## 0.1.0 - 2019-12-12
### Added
- initial release

[Unreleased]: https://github.com/mschmieder/python-kacl/compare/v1.0.0...HEAD

Example CHANGELOG.md (after):

# 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]

## 1.0.0 - 2019-12-22
### Added
- added default content checks
- cli will now check for valid semantic version when using `release` command
- implemented basic cli with `new`, `get`, `release`, `verify`
- added `--json` option to `verify` command

## 0.1.0 - 2019-12-12
### Added
- initial release

[Unreleased]: https://github.com/mschmieder/python-kacl/compare/v1.0.0...HEAD

Usage with version increment

kacl-cli release patch

Example CHANGELOG.md (after):

# 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]

## 0.1.1 - 2019-12-22
### Added
- added default content checks
- cli will now check for valid semantic version when using `release` command
- implemented basic cli with `new`, `get`, `release`, `verify`
- added `--json` option to `verify` command

## 0.1.0 - 2019-12-12
### Added
- initial release

[Unreleased]: https://github.com/mschmieder/python-kacl/compare/v1.0.0...HEAD

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