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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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13
crates/bin/src/args.rs
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@ -144,6 +144,19 @@ pub struct Args {
#[clap(help_heading = "Options", long)]
pub install_path: Option<PathBuf>,
/// Install binaries with a custom cargo root.
///
/// By default, we use `$CARGO_INSTALL_ROOT` or `$CARGO_HOME` as the
/// cargo root and global metadata files are updated with the
/// package information.
///
/// Specifying another path here would install the binaries and update
/// the metadata files inside the path you specified.
///
/// NOTE that `--install-path` takes precedence over this option.
#[clap(help_heading = "Options", long)]
pub roots: Option<PathBuf>,
/// Deprecated, here for back-compat only. Secure is now on by default.
#[clap(hide(true), long)]
pub secure: bool,