cblavier
Hi,
I’m in the process of upgrading from Elixir 1.17.x to Elixir 1.19.x. I’ve noticed that running mix loadpaths now compiles the entire application (including dependencies and application code), rather than just the dependencies. I observe the same behavior with mix deps.compile.
In our CI pipeline, it’s important to compile dependencies and application code separately to enable efficient layer caching.
Is this a regression in Elixir 1.19.x? Is there an alternative approach to achieve this separation with the new version?
Thank you for your help!
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First 8 of 8 Posts
NobbZ
I never used
mix loadpaths, though I am under the impression, thatmix deps.compilealways 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.cblavier
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
josevalim
mix deps.compile --skip-umbrella-childrenshould do the trick.cblavier
@josevalim Am I missing something?
josevalim
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.cblavier
ChatGPT to the rescue
The error is caused by the command you’re running:
mix deps.compile –-skip-umbrella-childrenNotice the double dashes before skip-umbrella-children. The error message:
** (Mix) Unknown dependency –-skip-umbrella-children for environment devProblem:
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.
lud
(I fixed the post if someone reads José’s post)
josevalim
Gah! Apparently my phone sneaked in some weird Unicode dash! Thanks!