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Description
When symlinking a file, it looks like cargo fmt isn't able to properly resolve modules. It causes cargo fmt to ignore certain modules referenced by that symlinked file.
Here's a minimal reproducable example:
.
├── Cargo.toml
├── linked
│ ├── Cargo.toml
│ └── src
│ ├── main.rs -> ../../plain/src/main.rs
│ └── unformatted.rs
└── plain
├── Cargo.toml
└── src
├── main.rs
└── unformatted.rs
==> ./Cargo.toml <==
[workspace]
resolver = "2"
members = [ "plain", "linked" ]
==> ./linked/Cargo.toml <==
[package]
name = "linked"
version = "0.1.0"
edition = "2024"
[dependencies]
==> ./linked/src/unformatted.rs <==
pub fn unformatted() { println!("Hello from linked!"); }
==> ./plain/Cargo.toml <==
[package]
name = "plain"
version = "0.1.0"
edition = "2024"
[dependencies]
==> ./plain/src/main.rs <==
mod unformatted;
fn main() {
unformatted::unformatted();
}
==> ./plain/src/unformatted.rs <==
pub fn unformatted() { println!("Hello from plain!"); }
cargo fmt only formats the plain file by default. You have to explicitly pass linked/src/unformatted.rs to cargo fmt to format it.
> cargo fmt --check
Diff in plain/src/unformatted.rs:1:
-pub fn unformatted() { println!("Hello from plain!"); }
+pub fn unformatted() {
+ println!("Hello from plain!");
+}
> cargo fmt --check -- linked/src/unformatted.rs
Diff in plain/src/unformatted.rs:1:
-pub fn unformatted() { println!("Hello from plain!"); }
+pub fn unformatted() {
+ println!("Hello from plain!");
+}
Diff in linked/src/unformatted.rs:1:
-pub fn unformatted() { println!("Hello from linked!"); }
+pub fn unformatted() {
+ println!("Hello from linked!");
+}
The rust code itself is working as expected:
> cargo run --manifest-path linked/Cargo.toml
Hello from linked!
> cargo run --manifest-path plain/Cargo.toml
Hello from plain!
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