[globset] Match a folder and its children using a single glob

[gyk]

It is not uncommon that we want to filter a folder itself and all of its children. But after #1756 was merged, we have to use two glob patterns to match the paths:

/path/to/folder
/path/to/folder/**

Are there any more elegant ways to achieve this?

[BurntSushi]

Maybe /path/to/folder{,/**}?

It would help if you gave a concrete example. e.g., A directory tree along with the command you're running, the desired result and the actual result.

[gyk]

An example: I would like to ignore every .AppleDouble folder, which doesn't necessarily appear at the root, and all the items inside it. Unfortunately, appending the path with {,/**} still cannot pass the unittest below, unless I specify the exact version globset = "=0.4.6".

#[cfg(test)]
mod tests {
    use globset::*;

    #[test]
    fn suffix() -> Result<(), Error> {
        // "**/target/**" doesn't work either
        let glob = GlobBuilder::new("**/target{,/**}")
            .build()?
            .compile_matcher();

        assert!(glob.is_match("target")); // failed
        assert!(glob.is_match("/target")); // failed
        assert!(glob.is_match("target/"));
        assert!(glob.is_match("/path/to/target")); // failed
        assert!(glob.is_match("/path/to/target/"));
        assert!(glob.is_match("/path/to/target/folder"));
        assert!(glob.is_match("/path/to/target/folder/"));

        assert!(!glob.is_match("targetfolder"));

        Ok(())
    }
}