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Refactor:Mv mod visitor vfs under crates_io

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Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
This commit is contained in:
Jiahao XU 2022-06-21 13:44:12 +10:00
parent b6f15f2e5e
commit 23bad39ba8
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GPG key ID: 591C0B03040416D6
4 changed files with 6 additions and 6 deletions
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52
src/drivers/vfs.rs
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@ -1,52 +0,0 @@
use std::collections::{hash_map::HashMap, hash_set::HashSet};
use std::io;
use std::path::Path;
use cargo_toml::AbstractFilesystem;
use crate::helpers::PathExt;
/// This type stores the filesystem structure for the crate tarball
/// extracted in memory and can be passed to
/// `cargo_toml::Manifest::complete_from_abstract_filesystem`.
#[derive(Debug)]
pub(super) struct Vfs(HashMap<Box<Path>, HashSet<Box<str>>>);
impl Vfs {
pub(super) fn new() -> Self {
Self(HashMap::with_capacity(16))
}
/// * `path` - must be canonical, must not be empty.
pub(super) fn add_path(&mut self, mut path: &Path) {
while let Some(parent) = path.parent() {
// Since path has parent, it must have a filename
let filename = path.file_name().unwrap();
// `cargo_toml`'s implementation does the same thing.
// https://docs.rs/cargo_toml/0.11.5/src/cargo_toml/afs.rs.html#24
let filename = filename.to_string_lossy();
self.0
.entry(parent.into())
.or_insert_with(|| HashSet::with_capacity(4))
.insert(filename.into());
path = parent;
}
}
}
impl AbstractFilesystem for Vfs {
fn file_names_in(&self, rel_path: &str) -> io::Result<HashSet<Box<str>>> {
let rel_path = Path::new(rel_path).normalize_path();
Ok(self.0.get(&*rel_path).map(Clone::clone).unwrap_or_default())
}
}
impl AbstractFilesystem for &Vfs {
fn file_names_in(&self, rel_path: &str) -> io::Result<HashSet<Box<str>>> {
(*self).file_names_in(rel_path)
}
}