Build a tag cloud

[paternal]

Hello, I wrote a plugin to create a tag cloud :

• the plugin
• the template producing the cloud
• the resulting page (I suck at CSS, but you get the idea).

The plugin counts the number of articles for each tag, and attributes a "weight" to each tag, which can be a number (on this page, it is a number between 100 and 200 which is used as the text size), or a string (e.g. "small", "normal", "big", which would be used as classes), or whatever you want. The template itself is not included in the package.

Right now, it is a quick and dirty script in the git directory of the website using it. However, I would like to publish it properly.

• It is very simple and could be nicely integrated into lektor-tags. If you like this idea, I can write a pull request.
• If you prefer it to remain a separate plugin, I will clean it and publish it as a lektor-tag-cloud plugin in a few days or weeks. Just tell me which one you want.

This could also be used to automatically generate a tags directory page (see #16).

Regards, -- Louis

[goanpeca]

I think it could be integrated. Thoughts @runfalk @nixjdm ?

[runfalk]

I definitely think we could integrate this into lektor-tags. It makes sense provide aggregated data as part of the plugin. Two things I think are necessary to merge it:

• Don't precalculate the tag cloud unless it's used somewhere
• If it's used, don't calculate it more than once per build. I think it's really important that this feature does not affect the performance for those who don't use it.

PRs are welcome.

[paternal]

Great! I'm adding this to my TODO list.

My plan is:

• [x] Clean and comment code.
• [x] Turn "{{ tagweight.count }}" to a function (is a dict right now), for consistency with other weight functions.
• [x] Write some documentation, with examples of templates.
• [x] Don't precalculate the tag cloud unless it's used somewhere
• [x] don't calculate it more than once per build

I might need some help for the last two items; I'll keep you updated. I do not plan to integrate a css file as an example, because I suck at CSS.

-- Louis

[paternal]

You can assign this issue to me (I don't think I'm allowed to do it myself).

[paternal]

Almost done. I am now waiting for you:

• [ ] please review #19, and answer https://github.com/nixjdm/lektor-tags/pull/19#discussion_r395984565 and https://github.com/nixjdm/lektor-tags/pull/19#pullrequestreview-378911739;
• [ ] please answer my question https://github.com/nixjdm/lektor-tags/pull/19#issuecomment-602031169;
• [ ] English is not my first language, so feel free to rephrase/rewrite my variables/comments/documentation.