API: Include changelog template?

[hugovk]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is.

Sometimes the JSON response includes a link for a release:

[
  {
    "cycle": "21.04 'Hirsute Hippo'",
    "cycleShortHand": "HirsuteHippo",
    "lts": false,
    "release": "2021-04-22",
    "support": "2022-01-01",
    "eol": "2022-01-01",
    "latest": "21.04",
    "link": "https://wiki.ubuntu.com/HirsuteHippo/ReleaseNotes/"
  },
  {
    "cycle": "20.10 'Groovy Gorilla'",
    "cycleShortHand": "GroovyGorilla",
    "lts": false,
    "release": "2020-10-22",
    "support": "2021-07-22",
    "eol": "2021-07-22",
    "latest": "20.10"
  },
...

https://endoflife.date/api/ubuntu.json

Sometimes not:

[
  {
    "cycle": "9.2",
    "release": "2021-06-16",
    "support": "2021-12-08",
    "eol": "2022-06-01",
    "latest": "9.2.4"
  },
  {
    "cycle": "9.1",
    "release": "2020-12-02",
    "support": "2021-06-16",
    "eol": "2021-12-08",
    "latest": "9.1.12"
  },
...

https://endoflife.date/api/drupal.json

But in this latter case, there's a top-level changelogTemplate value:

changelogTemplate: https://wiki.ubuntu.com/__CYCLE_SHORT_HAND__/ReleaseNotes/ChangeSummary/__LATEST__/

https://raw.githubusercontent.com/endoflife-date/endoflife.date/master/products/drupal.md

And it's used to generate release links on the website:

https://endoflife.date/drupal

Describe the solution you'd like
A clear and concise description of what you want to happen.

Would it be a good idea to:

• generate links for each release from the changelogTemplate, and include in the JSON?
• or include the changelogTemplate top-level value in the JSON, for API users to generate links themselves? (Would need to make sure all template variables are available too.)

Describe alternatives you've considered
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No change.

[welcome]

Thanks for opening your first issue here! Be sure to follow the issue template!

[captn3m0]

I did some work to make it modular in recent changes to changelogTemplate, shouldn't be too hard to re-use that it in the API as well.

[captn3m0]

If you'd like to work on this:

• This is how the release link is generated for the HTML pages:

  endoflife.date/_layouts/post.html

  Lines 48 to 55 in 53b9a6f

  	{% capture releaseLink %}
  	{% if r.link and diff > 0 %}
  	{{r.link}}
  	{% elsif page.changelogTemplate and diff > 0 %}
  	{{page.changelogTemplate | replace: '__RELEASE_CYCLE__',r.releaseCycle | replace: '__LATEST__',latestVersionNumber | replace: '__LATEST_SHORT_HAND__',r.latestShortHand | replace: '__CYCLE_SHORT_HAND__',r.cycleShortHand }}
  	{% endif %}
  	{% endcapture %}
  	{% assign releaseLink = releaseLink | liquify | strip %}

• The equivalent changes would have to be made here: https://github.com/endoflife-date/endoflife.date/blob/master/_plugins/create-json-files.rb

Make sure you read through CONTRIBUTING.md to understand the file structure, and go through this PR. Also, please read through the HACKING.md file to setup the project locally. Reading these will help you get onboarded faster and make sure that your PR sees a speedy merge.

And finally, we have a very helpful guide for new contributors during Hacktoberfest as well.

To test your changes, validate these pages:

• /api/fedora.json
• /api/fedora/34.json

[marcwrobel]

This will probably done in #2080.