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Support new cmdline option --roots (#389)

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* Add new field `Args::roots`
* Use `env::var_os` to fetch `CARGO_INSTALL_ROOTS`
   Previously, it uses `env::var`, which might reject valid path just
   because it is not utf-8 string.
* Update manifest if `CARGO_INSTALL_ROOT` is specified
* Add new fn `install_path::get_cargo_roots_path`
* Fix updating manifest: Use `cargo_roots` instead of default path
* Rm `helpers::statics::cargo_home`

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
This commit is contained in:
Jiahao XU 2022-09-17 18:34:36 +10:00 • committed by GitHub
parent a611b824fd
commit 934ccc257b
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7 changed files with 67 additions and 38 deletions
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16
crates/binstalk/src/helpers/statics.rs
View file

@ -1,20 +1,6 @@
use std::{
io::Error,
ops::Deref,
path::{Path, PathBuf},
};
use once_cell::sync::{Lazy, OnceCell};
use once_cell::sync::Lazy;
use url::Url;
pub fn cargo_home() -> Result<&'static Path, Error> {
static CARGO_HOME: OnceCell<PathBuf> = OnceCell::new();
CARGO_HOME
.get_or_try_init(home::cargo_home)
.map(Deref::deref)
}
pub fn cratesio_url() -> &'static Url {
static CRATESIO: Lazy<Url, fn() -> Url> =
Lazy::new(|| Url::parse("https://github.com/rust-lang/crates.io-index").unwrap());