Source Replacement not working

[litzh]

$ cargo version
cargo 1.37.0 (9edd08916 2019-08-02)
$ cargo install-update --version
cargo-install-update 1.7.0

According to The Cargo Book, Cargo supports the ability to replace one source with another.

Below is my ~/.cargo/config:

[source.crates-io]
registry = "https://github.com/rust-lang/crates.io-index"
replace-with = 'ustc'
[source.ustc]
registry = "git://mirrors.ustc.edu.cn/crates.io-index"

When executing cargo install, Cargo downloads from custom source.

$ cargo install cargo-update
    Updating `git://mirrors.ustc.edu.cn/crates.io-index` index

When executing cargo install-update, Cargo downloads from the default source.

$ cargo install-update -a
    Updating registry 'https://github.com/rust-lang/crates.io-index'

[nabijaczleweli]

Tested this locally, but if you would be so kind as to check if the newest master with commits above correctly picks up your config and checkout?

[litzh]

It works on Linux and Windows MSVC.

On macOS (both stable and nightly), it still picks the default config.

Cargo versions are all 1.37.0.

[nabijaczleweli]

Hmm, can you apply the following patch and post the output?

diff --git a/src/main.rs b/src/main.rs
index d3cba3d17..3a1f74908 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -69,10 +69,12 @@ fn actual_main() -> Result<(), i32> {
     }

     let registry_url = cargo_update::ops::get_index_url(&crates_file);
+    println!("registry_url {}", registry_url);
     let registry = cargo_update::ops::get_index_path(&opts.cargo_dir.1, Some(&registry_url)).map_err(|e| {
             println!("Couldn't get package repository: {}.", e);
             2
         })?;
+    println!("registry {:?}", registry);
     let mut registry_repo = Repository::open(&registry).map_err(|_| {
             println!("Failed to open registry repository at {}.", registry.display());
             2
diff --git a/src/ops/mod.rs b/src/ops/mod.rs
index 359ee6271..865556633 100644
--- a/src/ops/mod.rs
+++ b/src/ops/mod.rs
@@ -796,8 +796,11 @@ pub fn get_index_url(crates_file: &Path) -> Cow<'static, str> {
 }

 fn get_index_url_impl(crates_file: &Path) -> Option<String> {
+    println!("crates_file {:?}", crates_file);
     let config = fs::read_to_string(crates_file.with_file_name("config")).ok()?;
+    println!("config {}", config);
     let config = toml::from_str::<toml::Value>(&config).ok()?;
+    println!("config {:#?}", config);

     let sources = config.get("source")?;

[litzh]

I fixed a typo in ~/.cargo/config on macOS, and now it works.:dizzy_face:

Thanks for your help.

[nabijaczleweli]

Released in v1.8.0!