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

vivacity_core/
lib.rs
