Remove files containing Macos meta-data

[jgsogo]

Changelog: Feature: Remove files containing Macos meta-data (files beginning by ._)

• closes [question] Are there environment difference between the "developer workflow" and conan create? #3529
• Docs: Document tools.apple_dot_clean () docs#978

[lasote]

Please, as we discussed I would like to know when and why it was failing, because depending on it we could choose how to fix it. So, finally failing with the create and working with local methods?

[jgsogo]

In the test you can see how the offending file appears in the system. If a copy is performed it vanish. That is the difference between the two workflows: one is making a copy while the other one isn't.

Adnn explains everything about it:

Finally, back to the initial topic of this issue:

why is there a difference in behaviour between between the "developer workflow" and conan create

Because, to fully reproduce the expected recipe that would need to copy the source folder to modify bits of it, I added a manual cp step to the developer workflow, because I could not find any conan developer command to do this copy otherwise.

And the cp shipped with OS X took care of handling those ._ (applying the attributes, and not copying them over to destination).

So, here it is, a recipe that was working perfectly in "developer workflow" is breaking at build time with conan create.

[memsharded]

I understood that this feature was due to downloading zip or tgz from the internet.
That is, the tools.get(), tools.unzip(), etc. I cannot see interface for this functionality.

On the other hand it is also affecting the core conan zip-unzip of .tgz, which we commented not to modify, as it has not been a problem so far.

So I suggest to move the

 if clean_macos_dot_files:
             dot_clean(dest_folder)

functionality to the corresponding tools section.

Please, feedback from @lasote too.

This has nothing to do with the previous behavior

[lasote]

Don't forget the docs

[jgsogo]

I won't, there is a checkbox left in the first comment 👍