Hello. I am attempting to build a Rust application which uses a crate named xdelta3. Unfortunately, it does not build:

Found crate xdelta3 at /nix/store/kr2svmhylbmrysp5w488h22n2ynzv811-xdelta3-rs-50d63cd/Cargo.toml
'/nix/store/kr2svmhylbmrysp5w488h22n2ynzv811-xdelta3-rs-50d63cd/' -> '/nix/store/hfmis00l8q90v3nzxlgxfla1aks3sbnx-xdelta3-0.1.5'
...
cp: cannot stat '/nix/store/kr2svmhylbmrysp5w488h22n2ynzv811-xdelta3-rs-50d63cd/xdelta3/xdelta3/py-compile': No such file or directory
...

I noticed that this file is excluded in the Cargo.toml file: https://github.com/liushuyu/xdelta3-rs/blob/7bca8bc72548bd88a92a308dcd01225c3e842bc7/Cargo.toml#L10-L12

Does anyone know what I can to do fix this?

Do you have fetchSubmodules = true; inside the fetchFromGitHub?

entheogenesis After adding fetchSubmodules the hash needs to be updated. If you don't update the hash, it will continue to use the old src (the one, that matches the old hash).

I invalidated the hash, but it remained the same in the end:

error: build of '/nix/store/6gvnbzyxwfi4f6zz6b5fvp6j0mr0yjqb-source.drv' on 'ssh-ng://nix-cp1' failed: hash mismatch in fixed-output derivation '/nix/store/6gvnbzyxwfi4f6zz6b5fvp6j0mr0yjqb-source.drv':
         specified: sha256-fN46Rr0v28LOMriApu17/nrFPkZjQ4nG5IhDsWbLduk=
            got:    sha256-FN46Rr0v28LOMriApu17/nrFPkZjQ4nG5IhDsWbLduk=
error: builder for '/nix/store/6gvnbzyxwfi4f6zz6b5fvp6j0mr0yjqb-source.drv' failed with exit code 1

Specifically, I invalidated it by changing the first character from F to f.

That's strange. I got differen hashes.

src = fetchFromGitHub {
    owner = "liushuyu";
    repo = "xdelta3-rs";
    rev = "7bca8bc72548bd88a92a308dcd01225c3e842bc7";
    hash = "sha256-ffcC1Uwyk7bSYDb0+Y/u7nLUrK9ZVGLMMeEncqcydk4=";
    fetchSubmodules = true;
  };

  cargoHash = "sha256-datZIWu2JA8UUu7Ck8WPQNJBrKH6to1Kq1wIdWB827M=";

But more importantly: the py-compile is a symlink to some automake thing. oof
lrwxrwxrwx 1 user users 41 Jan 1 1970 py-compile -> /usr/local/share/automake-1.11/py-compile

That's strange. I got differen hashes.

src = fetchFromGitHub {
    owner = "liushuyu";
    repo = "xdelta3-rs";
    rev = "7bca8bc72548bd88a92a308dcd01225c3e842bc7";
    hash = "sha256-ffcC1Uwyk7bSYDb0+Y/u7nLUrK9ZVGLMMeEncqcydk4=";
    fetchSubmodules = true;
  };

  cargoHash = "sha256-datZIWu2JA8UUu7Ck8WPQNJBrKH6to1Kq1wIdWB827M=";

But more importantly: the py-compile is a symlink to some automake thing. oof

lrwxrwxrwx 1 user users     41 Jan  1  1970 py-compile -> /usr/local/share/automake-1.11/py-compile

I suppose what I want to know is, if the Cargo.toml file specifies this:

exclude = [
    "xdelta3/xdelta3/py-compile"
]

Why is nixpkgs trying to copy an excluded file?

I’m trying to build a tauri application on 24.11 and running into this issue:

/nix/store/3k5jd0aq55r4cysfz9j5g019lvmzbf6q-cargo-1.82.0/bin/cargo: /nix/store/790yignx6svw9kaxqdw02qzs7fh61psp-openssl-3.0.15/lib/libssl.so.3: version `OPENSSL_3.2.0' not found (required by /nix/store/fqwkalsvg898sgf969bqpaz4blypx5gd-curl-8.11.0/lib/libcurl.so.4)

K900: Do you happen to know what I need to do fix the aforementioned build issue? You said this:

Probably replace that symlink in the vendor drv
But I do not know how to do that.

K900: Do you happen to know what I need to do fix the aforementioned build issue? You said this:

Probably replace that symlink in the vendor drv

But I do not know how to do that

K900: Do you happen to know what I need to do fix the aforementioned build issue? You said this:

Probably replace that symlink in the vendor drv

But I do not know how to do that.