Codeowners file doesn't support absolute paths

[otbutz]

Description

The codeowners support #10161 introduced in #24910 doesn't seem to support paths starting with /:

# works
docs/*.\\.md
# doesn't
/docs/*.\\.md

This is supported by Githubs syntax: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners#example-of-a-codeowners-file

I thought it might be supported by gitea as well because of this example provided in the documentation:

!/assets/.*\\.(bin|exe|msi) @user9

Gitea Version

1.21.0

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

Binary started via systemd behind a caddy reverse proxy.

Database

None

[yp05327]

First, I think your example should be:

# works
docs/.*\\.md
# doesn't
/docs/.*\\.md

We get the changed files path by diff-tree which will not contain / ahead of the path.
So the sample you provided is actually not supported yet.

!/assets/.*\\.(bin|exe|msi) @user9

This one works because it has ! which means it is a negative rule, and regexp match will always be false, so it worked. But it is not correct, so without !, it won't work.

↑ the condition