From Gentoo Wiki
- File names can be arbitrary strings of characters with or without suffix, except for repos.conf/gentoo.conf expected by mirrorselect.
- Comments begin with
#(no inline comments).
- Configuration of each repository is specified in a separate file or section starting with
[repository_name]. It is recommended that
[repository_name]is the same as the name given in the repo_name file.
- Attributes are specified in
attribute = valueformat.