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 jsonfile;
15pub mod layout;
16pub mod lock;
17pub mod path_install;
18pub mod pathutil;
19pub mod pest_plugin;
20pub mod phparray;
21pub mod phpcs_installer;
22pub mod phpjson;
23pub mod phpserialize;
24pub mod platform;
25pub mod root_version;
26pub mod runtime_stub;
27pub mod scope;
28pub mod state;
29pub mod store;
30pub mod version;
31
32pub use error::{Error, Result};
33
34/// `random_bytes($n)` for the few places Composer draws randomness (the
35/// APCu prefix): the OS entropy source, or the hasher seed as a fallback.
36pub fn random_bytes(n: usize) -> Vec<u8> {
37    let mut out = vec![0u8; n];
38    #[cfg(unix)]
39    {
40        use std::io::Read as _;
41        if let Ok(mut f) = std::fs::File::open("/dev/urandom") {
42            if f.read_exact(&mut out).is_ok() {
43                return out;
44            }
45        }
46    }
47    use std::hash::{BuildHasher as _, Hasher as _};
48    let mut i = 0;
49    while i < n {
50        let word = std::collections::hash_map::RandomState::new()
51            .build_hasher()
52            .finish();
53        for b in word.to_le_bytes() {
54            if i < n {
55                out[i] = b;
56                i += 1;
57            }
58        }
59    }
60    out
61}
vivacity_core/lib.rs

vivacity_core/
lib.rs
