Add release notes bundling tool

[timobrembeck]

Short description

I was really annoyed by the changelog format and the constant merge conflicts, so I implemented a completely over-engineered release note tool.

To generate the good old markdown changelog, execute e.g.:

./tools/make_release_notes.sh --format=md --output=CHANGELOG.md

You can create new release notes by copying+pasting the existing ones, or by simply executing:

./tools/new_release_note.sh 1689 en "Changelog entries are now automatically genereated"

Checking if Integreat CMS is installed...
✔ Integreat CMS is installed
Creating new release note...
✔ The new release note has been generated:

integreat_cms/release_notes/current/unreleased/1689.yml
┌──────────────────────────────────────
│ en: Changelog entries are now automatically genereated
│ de: Changelog-Einträge werden nun automatisch generiert
└──────────────────────────────────────

or:

./tools/new_release_note.sh 1763 de "Das Änderungsprotokoll steht jetzt auch auf Deutsch zur Verfügung"

Checking if Integreat CMS is installed...
✔ Integreat CMS is installed
Creating new release note...
✔ The new release note has been generated:

integreat_cms/release_notes/current/unreleased/1763.yml
┌──────────────────────────────────────
│ en: The change log is now also available in German
│ de: Das Änderungsprotokoll steht jetzt auch auf Deutsch zur Verfügung
└──────────────────────────────────────

And if a DeepL auth key is set in the config file, the changelog entries are automatically translated.

Proposed changes

• Split changelog into separate files
• Remove obsolete changelog checking script
• Add dev tool to build release notes
• Add dev tool to create new release note
• Adapt documentation script to new release notes
• Adapt CircleCI workflow to new release notes
• Show release notes in CMS

Side effects

• Whether the release workflow works as expected remains to be seen

Resolved issues

Fixes: #1689
Fixes: #1763

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Pull Request Review Guidelines

[codeclimate]

Code Climate has analyzed commit f18c5d4 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 75.8% (0.0% change).

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[MizukiTemma]

Thank you 👍

[PeterNerlich]

And if a DeepL auth key is set in the config file, the changelog entries are automatically translated.

So, where exactly is the config file again? A quick search in the documentation doesn't bring anything up. Is this a missing section?

[timobrembeck]

So, where exactly is the config file again? A quick search in the documentation doesn't bring anything up. Is this a missing section?

In /etc/integreat-cms.ini

There's a small sentence here: https://digitalfabrik.github.io/integreat-cms/ref/integreat_cms.core.html#settings

But yeah, could probably be more prominent. And I'm not sure why the search isn't returning this result...