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//! A set of tree utilities used internally in the tree.rs module
use crate::HashId;
use git2::{Repository, Tree};
use std::{path::PathBuf, sync::Arc};
/// Take a vector of path segments, and turn it into a valid offset path
///
/// There are tests to make sure this function works properly.
/// Following are some example transformations.
///
/// * vec![] -> ""
/// * vec!["foo"] -> "foo"
/// * vec!["foo", "bar", "baz"] -> "foo/bar/baz"
pub(super) fn path_segs_join(segments: Vec<&str>) -> String {
segments
.into_iter()
.fold(PathBuf::new(), |buf, seg| buf.join(seg))
.as_path()
.to_str()
.unwrap()
.to_owned()
}
/// Take an offset path inside the repository and split it into a vec
pub(super) fn path_split(path: &str) -> Vec<&str> {
path.split("/").filter(|s| s != &"").collect()
}
/// Compare a path and entry to a target buffer
pub(super) fn path_cmp(target: &Vec<&str>, path: &str, entry: &str) -> bool {
let mut buf = path_split(path);
buf.push(entry);
eprintln!("{:?}", buf);
target == &buf
}
/// Open a tree for a particular commit
pub(super) fn open_tree<'r>(repo: &'r Arc<Repository>, c: &HashId) -> Option<Tree<'r>> {
repo.find_commit(c.to_oid()).unwrap().tree().ok()
}
#[test]
fn empty_path() {
assert_eq!(path_segs_join(vec![]), String::from(""));
}
#[test]
fn one_path() {
assert_eq!(path_segs_join(vec!["foo".into()]), String::from("foo"));
}
#[test]
fn nested_path() {
assert_eq!(
path_segs_join(vec!["foo".into(), "bar".into(), "baz".into()]),
String::from("foo/bar/baz")
);
}
|
