Convert changelog into dict

Convert changelog markdown file following keep a changelog format into python dict.

import keepachangelog

changes = keepachangelog.to_dict("path/to/CHANGELOG.md")

changes would look like:

changes = {
    "1.1.0": {
        "changed": [
            "Enhancement 1 (1.1.0)",
            "sub enhancement 1",
            "sub enhancement 2",
            "Enhancement 2 (1.1.0)",
        ],
        "release_date": "2018-05-31",
        "version": "1.1.0",
    },
    "1.0.1": {
        "fixed": [
            "Bug fix 1 (1.0.1)",
            "sub bug 1",
            "sub bug 2",
            "Bug fix 2 (1.0.1)",
        ],
        "release_date": "2018-05-31",
        "version": "1.0.1",
    },
    "1.0.0": {
        "deprecated": ["Known issue 1 (1.0.0)", "Known issue 2 (1.0.0)"],
        "release_date": "2017-04-10",
        "version": "1.0.0",
    },
}

For a markdown file with the following content:

# 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]
### Changed
- Release note 1.
- Release note 2.

### Added
- Enhancement 1
 - sub enhancement 1
 - sub enhancement 2
- Enhancement 2

### Fixed
- Bug fix 1
 - sub bug 1
 - sub bug 2
- Bug fix 2

### Security
- Known issue 1
- Known issue 2

### Deprecated
- Deprecated feature 1
- Future removal 2

### Removed
- Deprecated feature 2
- Future removal 1

## [1.1.0] - 2018-05-31
### Changed
- Enhancement 1 (1.1.0)
 - sub enhancement 1
 - sub enhancement 2
- Enhancement 2 (1.1.0)

## [1.0.1] - 2018-05-31
### Fixed
- Bug fix 1 (1.0.1)
 - sub bug 1
 - sub bug 2
- Bug fix 2 (1.0.1)

## [1.0.0] - 2017-04-10
### Deprecated
- Known issue 1 (1.0.0)
- Known issue 2 (1.0.0)

[Unreleased]: https://github.test_url/test_project/compare/v1.1.0...HEAD
[1.1.0]: https://github.test_url/test_project/compare/v1.0.1...v1.1.0
[1.0.1]: https://github.test_url/test_project/compare/v1.0.0...v1.0.1
[1.0.0]: https://github.test_url/test_project/releases/tag/v1.0.0

show_unreleased parameter can be specified in order to include Unreleased section information. Note that release_date will be set to None in such as case.

Endpoint

Starlette

An helper function is available to create a starlette endpoint to retrieve changelog as JSON.

from starlette.applications import Starlette
from keepachangelog.starlette import add_changelog_endpoint


app = Starlette()
# /changelog endpoint will return the dict extracted from the changelog as JSON.
add_changelog_endpoint(app, "path/to/CHANGELOG.md")

Note: starlette module must be installed.

Flask-RestX

An helper function is available to create a Flask-RestX endpoint to retrieve changelog as JSON.

import flask
import flask_restx
from keepachangelog.flask_restx import add_changelog_endpoint


app = flask.Flask(__name__)
api = flask_restx.Api(app)
# /changelog endpoint will return the dict extracted from the changelog as JSON.
add_changelog_endpoint(api, "path/to/CHANGELOG.md")

Note: flask-restx module must be installed.

How to install

1. python 3.6+ must be installed
2. Use pip to install module:

python -m pip install keepachangelog