using rust-analyzer on project dependencies

[astefano]

Hello,

i use rust-analyzer scip . and scip print --json index.scip > my_project.json to get a json from which i can create a call graph for a given project x. Say x has y as a crate dependency. If i want to create the call graph for x and y (so i can see for instance the "path" from a function f in y to a function g in x), the solution i have is to have the source code of y as a dependency withion x (and change the Cargo.toml of x accordingly to reflect the use of a project relative path instead of the crate). This works but i was wondering if there is a more elegant way. (Plus the approach i've taken is not really scalable.)

Thank you,
Lacramioara

[lnicola]

Hi. Our SCIP support is pretty limited, but a quick way to include dependencies is to run cargo vendor [--locked] and create a .cargo/config.toml with the change it suggests.

[astefano]

I tested the suggestion to use cargo vendor [--locked] and i write to check if i might have missunderstood it.
Here's what i tried:
Setup:

1. ran cargo vendor [--locked] to vendor all dependencies (including a git dependency via [patch.crates-io])
2. created .cargo/config.toml with:

      [source.vendored-sources]   directory = "vendor"
   

3. verified cargo metadata resolved correctly using vendored sources
4. ran rust-analyzer scip .
   Result:
   i see the dependency in the folder "vendor" (and i know it's the one i need because it has a special folder "lemmas"). But then when i search the generated index for "lemmas", there are none.

Would you see if i overlooked something?

Thank you again,
Lacramioara