gitconf 0.1.0

Overlay utility for more convenient and flexible configuration of git
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// Gitconf by DomesticMoth
//
// To the extent possible under law, the person who associated CC0 with
// gitconf has waived all copyright and related or neighboring rights
// to gitconf.
//
// You should have received a copy of the CC0 legalcode along with this
// work.  If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
use std::path::PathBuf;

pub struct PathIter {
    buf: PathBuf,
    end: bool,
    last: PathBuf,
}

impl PathIter {
    pub fn new(path: PathBuf) -> Self {
        Self { buf: path, end: false, last: PathBuf::from("/") }
    }
}

impl Iterator for PathIter {
    type Item = PathBuf;
    fn next(&mut self) -> Option<Self::Item> {
        loop {
            if self.end {
                return None;
            }
            let mut ret = self.buf.clone();
            if let Some("/") = ret.to_str() {
                ret = PathBuf::from("/etc")
            }
            self.end = !self.buf.pop();
            if ret == self.last {
                continue;
            } else {
                self.last = ret.clone();
            }
            return Some(ret);
        }
    }
}