Elixir 1.19: deps only compilation

I never used mix loadpaths, though I am under the impression, that mix deps.compile always compiled all “children” under the umbrella, though with “plain singular” apps I never observed the described behaviour.

I do not have a testbed for non-umbrella apps currently.

PS: Just checked, with 1.18, all apps under the umbrella are built when using mix deps.compile.

Ok, I never realized it was because we’re also using an umbrella app.
Anyway, I still need a solution to prevent my CI from recompiling all my deps whenever a source file changes

mix deps.compile --skip-umbrella-children should do the trick.

@josevalim Am I missing something?

❯ mix deps.compile –-skip-umbrella-children
** (Mix) Unknown dependency –-skip-umbrella-children for environment dev

Which Elixir version are you at? mix deps.compile --skip-umbrella-childrenworked fine for me locally, both at the umbrella root and inside a child project.

ChatGPT to the rescue

The error is caused by the command you’re running:
mix deps.compile –-skip-umbrella-children

Notice the double dashes before ⁠skip-umbrella-children. The error message:
** (Mix) Unknown dependency –-skip-umbrella-children for environment dev

Problem:

You’re using the wrong type of dash before ⁠skip-umbrella-children.

You have ⁠–-skip-umbrella-children (an en dash ⁠– plus hyphen ⁠-), when it should be ⁠--skip-umbrella-children (two standard hyphens).

This often happens when copying from formatted text editors that substitute double hyphens with a long dash.

(I fixed the post if someone reads José’s post)

Gah! Apparently my phone sneaked in some weird Unicode dash! Thanks!