vivacity_core/
lib.rs

1//! vivacity-core: manifests, platform, fetch and installation.
2
3pub mod binproxy;
4pub mod clone;
5pub mod constraint;
6pub mod content_hash;
7pub mod dirs;
8pub mod error;
9pub mod extract;
10pub mod fetch;
11pub mod glob;
12pub mod installer;
13pub mod installers;
14pub mod layout;
15pub mod lock;
16pub mod path_install;
17pub mod pathutil;
18pub mod pest_plugin;
19pub mod phparray;
20pub mod phpcs_installer;
21pub mod phpjson;
22pub mod phpserialize;
23pub mod platform;
24pub mod root_version;
25pub mod runtime_stub;
26pub mod scope;
27pub mod state;
28pub mod store;
29pub mod version;
30
31pub use error::{Error, Result};
32
33/// `random_bytes($n)` for the few places Composer draws randomness (the
34/// APCu prefix): the OS entropy source, or the hasher seed as a fallback.
35pub fn random_bytes(n: usize) -> Vec<u8> {
36    let mut out = vec![0u8; n];
37    #[cfg(unix)]
38    {
39        use std::io::Read as _;
40        if let Ok(mut f) = std::fs::File::open("/dev/urandom") {
41            if f.read_exact(&mut out).is_ok() {
42                return out;
43            }
44        }
45    }
46    use std::hash::{BuildHasher as _, Hasher as _};
47    let mut i = 0;
48    while i < n {
49        let word = std::collections::hash_map::RandomState::new()
50            .build_hasher()
51            .finish();
52        for b in word.to_le_bytes() {
53            if i < n {
54                out[i] = b;
55                i += 1;
56            }
57        }
58    }
59    out
60}
vivacity_core/lib.rs

vivacity_core/
lib.rs
