use std::path::{Path, PathBuf}; use git_hash::ObjectId; mod access;mod entry;mod file;mod init; pub fn hex_to_id(hex: &str) -> ObjectId {    ObjectId::from_hex(hex.as_bytes()).expect("40 bytes hex")} pub fn fixture_index_path(name: &str) -> PathBuf {    let dir =        git_testtools::scripted_fixture_read_only_standalone(Path::new("make_index").join(name).with_extension("sh"))            .expect("script works");    dir.join(".git").join("index")} pub fn loose_file_path(name: &str) -> PathBuf {    git_testtools::fixture_path_standalone(Path::new("loose_index").join(name).with_extension("git-index"))} #[test]fn size_of_entry() {    assert_eq!(std::mem::size_of::<git_index::Entry>(), 80);     // the reason we have our own time is half the size.    assert_eq!(std::mem::size_of::<git_index::entry::Time>(), 8);    assert_eq!(std::mem::size_of::<filetime::FileTime>(), 16);} enum Fixture {    Generated(&'static str),    Loose(&'static str),} impl Fixture {    pub fn to_path(&self) -> PathBuf {        match self {            Fixture::Generated(name) => fixture_index_path(name),            Fixture::Loose(name) => loose_file_path(name),        }    }    pub fn to_name(&self) -> &'static str {        match self {            Fixture::Generated(name) | Fixture::Loose(name) => name,        }    }     pub fn open(&self) -> git_index::File {        git_index::File::at(self.to_path(), git_hash::Kind::Sha1, Default::default())            .expect("fixtures are always readable")    }}