Add new workflow to automatically (and periodically) update `ex_doc` version

[MarkoMin]

Tried everything locally (except actually creating an issue). If it works correctly, it will create one at midnight. First time having fun with GH actions so there may be some mistakes.

Closes #57

[paulo-ferraz-oliveira]

@MarkoMin, I created an Elixir script your pull request could plug in to (if it gets merged first), so that a pull request also gets created alongside the issue. 👍

My pull request is mentioned above.

And here's an example of an automated pull request: https://github.com/paulo-ferraz-oliveira/rebar3_checkshell/blob/main/.github/workflows/rebar3_depup.sh (I do prefer to have my shell script separate so I can "shellcheck" and "shfmt" it 😄).

[MarkoMin]

Oh, I didn't even think about that, that could work nicely! I'll utilize it if/when it gets merged.

[MarkoMin]

One thought: do we actually need both an issue and a PR? We should switch to PR only IMO.

[paulo-ferraz-oliveira]

I thought about that, too. Maybe PR alone is enough.

[MarkoMin]

Seems like it should be. But now we wait for #67 to get merged

[paulo-ferraz-oliveira]

@MarkoMin, #67's merged. It ended up being a Mix task. I think you'd need to compile it and run it, unless @starbelly has a different suggestion.

[starbelly]

A thought on this, and this may or may not be pragmatic, but we have both erlang and elixir at our disposal. We could write a bit of code that uses httpc to get this information and handle the result with more exactness (i.e., use verl or Version, Version if it's a mix task).

Other thought, since we're wanting to get the latest release that is available on hex, we can just hit the hex api to get this info.

$ latest_stable=$(curl -s https://hex.pm/api/packages/ex_doc | jq '.latest_stable_version' | tr -d '"')
$ echo $latest_stable
0.30.6

[paulo-ferraz-oliveira]

Good stuff. And jq has builtin support to remove the " too, so you can do jq -r '.latest_stable_version'. I'll suggest this above, instead of what I did before. I didn't quite get the Erlang idea, but feel free to expand. (e.g. you'd want the mix task to have no inputs and figure out the latest by itself?)

[starbelly]

Good stuff. And jq has builtin support to remove the " too, so you can do jq -r '.latest_stable_version'. I'll suggest this above, instead of what I did before. I didn't quite get the Erlang idea, but feel free to expand. (e.g. you'd want the mix task to have no inputs and figure out the latest by itself?)

Yeah. More like you can use erlang or elixir and httpc to do the gets and posts vs a bunch of shell scripterty, but that said. Let’s be pragmatic.

[MarkoMin]

I've made following changes:

1. Moved task from root to lib/mix/tasks
2. Renamed workflow as per @paulo-ferraz-oliveira suggestion
3. Update bash script to make an automated PR as per @paulo-ferraz-oliveira example - take a look if there are any commands that are redundant or missing

[paulo-ferraz-oliveira]

I approved the workflows to run. I'm forking your branch to test out the flow...

[paulo-ferraz-oliveira]

@starbelly, if this isn't done already we're gonna need to enable

and also

[paulo-ferraz-oliveira]

@MarkoMin, you copied to "lib/mix/tasks", instead of moving...

[paulo-ferraz-oliveira]

Example of a pull request working: https://github.com/paulo-ferraz-oliveira/rebar3_ex_doc_mm/pull/2/files.

[paulo-ferraz-oliveira]

@MarkoMin, sorry I did so many small changes/suggestions, but it was the best way I found to explain my reasoning. Accepting them all should put the pull request in a mergeable state.

[starbelly]

@starbelly, if this isn't done already we're gonna need to enable

and also

I think with how infrequent ex_doc releases are (and should be) we should just allow the bot to open PR. We definitely want to see what the bot has done before merging, thoughts?

[paulo-ferraz-oliveira]

That's my goal. I was under the impression you needed:

• the latter to allow to write to branch
• the former to open the pull request

But maybe the former is not required (?)

[paulo-ferraz-oliveira]

We can also accept+merge (once all changes are done), then test the settings that are required (our goal is only to create the pull request, as automating stuff like this can lead to issues - let's say that ex_doc breaks and we don't have enough tests, for example).

[MarkoMin]

I approved all suggestions. Sorry for errors with mix, first time using it.

Now it should be done. It's quite messy with all those commits, but we can squash them I guess. For some reason, mix.exs got into commits, but changed version is the file that is currently on main so no conflicts should exists.

[paulo-ferraz-oliveira]

@MarkoMin, could you rebase this onto the main branch, and move the script?

I see this in the Files' tab

and it's confusing. Thanks.

[MarkoMin]

@MarkoMin, could you rebase this onto the main branch, and move the script?

done