cargo-auditable: Move builder to seperate file

pkgs/by-name/ca/cargo-auditable/builder.nix

@@ -0,0 +1,63 @@
+{
+  lib,
+  stdenv,
+  rustPlatform,
+  fetchFromGitHub,
+  installShellFiles,
+  auditable-bootstrap,
+}:
+lib.extendMkDerivation {
+  constructDrv = rustPlatform.buildRustPackage.override { cargo-auditable = auditable-bootstrap; };
+
+  extendDrvArgs =
+    finalAttrs:
+    {
+      pname ? "cargo-auditable",
+      auditable ? true,
+      hash ? "",
+      cargoHash ? "",
+      ...
+    }:
+    {
+      inherit auditable pname;
+
+      src = fetchFromGitHub {
+        owner = "rust-secure-code";
+        repo = "cargo-auditable";
+        tag = "v${finalAttrs.version}";
+        inherit hash;
+      };
+
+      nativeBuildInputs = [
+        installShellFiles
+      ];
+
+      checkFlags = [
+        # requires wasm32-unknown-unknown target
+        "--skip=test_wasm"
+        # Seems to be a bug in tests of locked vs. semver compatible packages
+        # https://github.com/rust-secure-code/cargo-auditable/issues/235
+        "--skip=test_proc_macro"
+        "--skip=test_self_hosting"
+      ];
+
+      postInstall = ''
+        installManPage cargo-auditable/cargo-auditable.1
+      '';
+
+      passthru.bootstrap = auditable-bootstrap;
+
+      meta = {
+        description = "Tool to make production Rust binaries auditable";
+        mainProgram = "cargo-auditable";
+        homepage = "https://github.com/rust-secure-code/cargo-auditable";
+        changelog = "https://github.com/rust-secure-code/cargo-auditable/blob/v${finalAttrs.version}/cargo-auditable/CHANGELOG.md";
+        license = with lib.licenses; [
+          mit # or
+          asl20
+        ];
+        maintainers = with lib.maintainers; [ RossSmyth ];
+        broken = stdenv.hostPlatform != stdenv.buildPlatform;
+      };
+    };
+}

pkgs/by-name/ca/cargo-auditable/package.nix

@@ -1,13 +1,11 @@
 {
-  lib,
   buildPackages,
-  fetchFromGitHub,
+  callPackage,
   makeRustPlatform,
-  installShellFiles,
-  stdenv,
 }:
-
 let
+  # Need to use the build platform rustc and Cargo so that
+  # we don't infrec
   rustPlatform = makeRustPlatform {
     inherit (buildPackages) rustc;
     cargo = buildPackages.cargo.override {
@@ -15,71 +13,23 @@ let
     };
   };
 
-  auditableBuilder = lib.extendMkDerivation {
-    constructDrv = rustPlatform.buildRustPackage.override { cargo-auditable = bootstrap; };
-
-    extendDrvArgs =
-      finalAttrs:
-      {
-        pname ? "cargo-auditable",
-        auditable ? true,
-        ...
-      }:
-      {
-        inherit auditable pname;
-        version = "0.6.5";
-
-        src = fetchFromGitHub {
-          owner = "rust-secure-code";
-          repo = "cargo-auditable";
-          tag = "v${finalAttrs.version}";
-          hash = "sha256-zjv2/qZM0vRyz45DeKRtPHaamv2iLtjpSedVTEXeDr8=";
-        };
-
-        cargoHash = "sha256-oTPGmoGlNfPVZ6qha/oXyPJp94fT2cNlVggbIGHf2bc=";
-
-        nativeBuildInputs = [
-          installShellFiles
-        ];
-
-        checkFlags = [
-          # requires wasm32-unknown-unknown target
-          "--skip=test_wasm"
-          # Seems to be a bug in tests of locked vs. semver compatible packages
-          # https://github.com/rust-secure-code/cargo-auditable/issues/235
-          "--skip=test_proc_macro"
-          "--skip=test_self_hosting"
-        ];
-
-        postInstall = ''
-          installManPage cargo-auditable/cargo-auditable.1
-        '';
-
-        passthru = {
-          inherit bootstrap;
-        };
-
-        meta = {
-          description = "Tool to make production Rust binaries auditable";
-          mainProgram = "cargo-auditable";
-          homepage = "https://github.com/rust-secure-code/cargo-auditable";
-          changelog = "https://github.com/rust-secure-code/cargo-auditable/blob/v${finalAttrs.version}/cargo-auditable/CHANGELOG.md";
-          license = with lib.licenses; [
-            mit # or
-            asl20
-          ];
-          maintainers = with lib.maintainers; [ RossSmyth ];
-          broken = stdenv.hostPlatform != stdenv.buildPlatform;
-        };
-      };
+  auditableBuilder = callPackage ./builder.nix {
+    inherit rustPlatform;
+    auditable-bootstrap = bootstrap;
   };
 
+  hash = "sha256-zjv2/qZM0vRyz45DeKRtPHaamv2iLtjpSedVTEXeDr8=";
+  cargoHash = "sha256-oTPGmoGlNfPVZ6qha/oXyPJp94fT2cNlVggbIGHf2bc=";
+  version = "0.6.5";
+
   # cargo-auditable cannot be built with cargo-auditable until cargo-auditable is built
   bootstrap = auditableBuilder {
+    inherit version hash cargoHash;
     pname = "cargo-auditable-bootstrap";
     auditable = false;
   };
 in
 auditableBuilder {
+  inherit version hash cargoHash;
   auditable = true;
 }