mirror of
https://github.com/denoland/deno.git
synced 2024-11-30 16:40:57 -05:00
27 lines
848 B
Rust
27 lines
848 B
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
|
|
|
|
use std::borrow::Cow;
|
|
|
|
/// Normalizes a package name for use at `node_modules/.deno/<pkg-name>@<version>[_<copy_index>]`
|
|
pub fn normalize_pkg_name_for_node_modules_deno_folder(name: &str) -> Cow<str> {
|
|
let name = if name.to_lowercase() == name {
|
|
Cow::Borrowed(name)
|
|
} else {
|
|
Cow::Owned(format!("_{}", mixed_case_package_name_encode(name)))
|
|
};
|
|
if name.starts_with('@') {
|
|
name.replace('/', "+").into()
|
|
} else {
|
|
name
|
|
}
|
|
}
|
|
|
|
fn mixed_case_package_name_encode(name: &str) -> String {
|
|
// use base32 encoding because it's reversible and the character set
|
|
// only includes the characters within 0-9 and A-Z so it can be lower cased
|
|
base32::encode(
|
|
base32::Alphabet::Rfc4648Lower { padding: false },
|
|
name.as_bytes(),
|
|
)
|
|
.to_lowercase()
|
|
}
|