store_ref_scanner/
spec.rs

1use crate::hbm::HalfBytesMask;
2
3pub struct StoreSpec<'path> {
4    /// path to store without trailing slash
5    pub path_to_store: &'path str,
6
7    /// compressed map of allowed ASCII characters in hash part
8    pub valid_hashbytes: HalfBytesMask,
9
10    /// compressed map of allowed ASCII characters in part after hash
11    pub valid_restbytes: HalfBytesMask,
12
13    /// exact length of hash part of store paths
14    pub hashbytes_len: u8,
15}
16
17impl StoreSpec<'_> {
18    pub(crate) fn check_rest(&self, rest: &[u8]) -> bool {
19        let hbl = self.hashbytes_len.into();
20        rest.iter()
21            .take(hbl)
22            .take_while(|&&i| self.valid_hashbytes.contains(i))
23            .count()
24            == hbl
25    }
26
27    pub const DFL_NIX2: StoreSpec<'static> = StoreSpec {
28        path_to_store: "/nix/store",
29        valid_hashbytes: HalfBytesMask::B32_REVSHA256,
30        valid_restbytes: HalfBytesMask::DFL_REST,
31        hashbytes_len: 32,
32    };
33
34    pub const DFL_YZIX1: StoreSpec<'static> = StoreSpec {
35        path_to_store: "/yzixs",
36        valid_hashbytes: HalfBytesMask::B64_BLAKE2B256,
37        valid_restbytes: HalfBytesMask::DFL_REST,
38        hashbytes_len: 43,
39    };
40}
store_ref_scanner/spec.rs

store_ref_scanner/
spec.rs
