carnix: 0.6.0 -> 0.6.5

doc/languages-frameworks/rust.md

@@ -79,19 +79,24 @@ an example for a minimal `hello` crate:
 Now, the file produced by the call to `carnix`, called `hello.nix`, looks like:
 
 ```
-with import <nixpkgs> {};
+# Generated by carnix 0.6.5: carnix -o hello.nix --src ./. Cargo.lock --standalone
+{ lib, buildPlatform, buildRustCrate, fetchgit }:
 let kernel = buildPlatform.parsed.kernel.name;
     # ... (content skipped)
-    hello_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-      crateName = "hello";
-      version = "0.1.0";
-      authors = [ "Authorname <user@example.com>" ];
-      src = ./.;
-      inherit dependencies buildDependencies features;
-    };
 in
 rec {
-  hello_0_1_0 = hello_0_1_0_ rec {};
+  hello = f: hello_0_1_0 { features = hello_0_1_0_features { hello_0_1_0 = f; }; };
+  hello_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
+    crateName = "hello";
+    version = "0.1.0";
+    authors = [ "pe@pijul.org <pe@pijul.org>" ];
+    src = ./.;
+    inherit dependencies buildDependencies features;
+  };
+  hello_0_1_0 = { features?(hello_0_1_0_features {}) }: hello_0_1_0_ {};
+  hello_0_1_0_features = f: updateFeatures f (rec {
+        hello_0_1_0.default = (f.hello_0_1_0.default or true);
+    }) [ ];
 }
 ```
 
@@ -103,33 +108,44 @@ dependencies, for instance by adding a single line `libc="*"` to our
 following nix file:
 
 ```
-with import <nixpkgs> {};
+# Generated by carnix 0.6.5: carnix -o hello.nix --src ./. Cargo.lock --standalone
+{ lib, buildPlatform, buildRustCrate, fetchgit }:
 let kernel = buildPlatform.parsed.kernel.name;
     # ... (content skipped)
-    hello_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-      crateName = "hello";
-      version = "0.1.0";
-      authors = [ "Jörg Thalheim <joerg@thalheim.io>" ];
-      src = ./.;
-      inherit dependencies buildDependencies features;
-    };
-    libc_0_2_34_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-      crateName = "libc";
-      version = "0.2.34";
-      authors = [ "The Rust Project Developers" ];
-      sha256 = "11jmqdxmv0ka10ay0l8nzx0nl7s2lc3dbrnh1mgbr2grzwdyxi2s";
-      inherit dependencies buildDependencies features;
-    };
 in
 rec {
-  hello_0_1_0 = hello_0_1_0_ rec {
-    dependencies = [ libc_0_2_34 ];
+  hello = f: hello_0_1_0 { features = hello_0_1_0_features { hello_0_1_0 = f; }; };
+  hello_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
+    crateName = "hello";
+    version = "0.1.0";
+    authors = [ "pe@pijul.org <pe@pijul.org>" ];
+    src = ./.;
+    inherit dependencies buildDependencies features;
   };
-  libc_0_2_34_features."default".from_hello_0_1_0__default = true;
-  libc_0_2_34 = libc_0_2_34_ rec {
-    features = mkFeatures libc_0_2_34_features;
+  libc_0_2_36_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
+    crateName = "libc";
+    version = "0.2.36";
+    authors = [ "The Rust Project Developers" ];
+    sha256 = "01633h4yfqm0s302fm0dlba469bx8y6cs4nqc8bqrmjqxfxn515l";
+    inherit dependencies buildDependencies features;
   };
-  libc_0_2_34_features."use_std".self_default = hasDefault libc_0_2_34_features;
+  hello_0_1_0 = { features?(hello_0_1_0_features {}) }: hello_0_1_0_ {
+    dependencies = mapFeatures features ([ libc_0_2_36 ]);
+  };
+  hello_0_1_0_features = f: updateFeatures f (rec {
+    hello_0_1_0.default = (f.hello_0_1_0.default or true);
+    libc_0_2_36.default = true;
+  }) [ libc_0_2_36_features ];
+  libc_0_2_36 = { features?(libc_0_2_36_features {}) }: libc_0_2_36_ {
+    features = mkFeatures (features.libc_0_2_36 or {});
+  };
+  libc_0_2_36_features = f: updateFeatures f (rec {
+    libc_0_2_36.default = (f.libc_0_2_36.default or true);
+    libc_0_2_36.use_std =
+      (f.libc_0_2_36.use_std or false) ||
+      (f.libc_0_2_36.default or false) ||
+      (libc_0_2_36.default or false);
+  }) [];
 }
 ```
 
@@ -146,7 +162,7 @@ or build inputs by overriding the hello crate in a seperate file.
 
 ```
 with import <nixpkgs> {};
-(import ./hello.nix).hello_0_1_0.override {
+((import ./hello.nix).hello {}).override {
   crateOverrides = defaultCrateOverrides // {
     hello = attrs: { buildInputs = [ openssl ]; };
   };
@@ -166,7 +182,7 @@ patches the derivation:
 
 ```
 with import <nixpkgs> {};
-(import ./hello.nix).hello_0_1_0.override {
+((import ./hello.nix).hello {}).override {
   crateOverrides = defaultCrateOverrides // {
     hello = attrs: lib.optionalAttrs (lib.versionAtLeast attrs.version "1.0")  {
       postPatch = ''
@@ -187,7 +203,7 @@ crate, we could do:
 
 ```
 with import <nixpkgs> {};
-(import hello.nix).hello_0_1_0.override {
+((import hello.nix).hello {}).override {
   crateOverrides = defaultCrateOverrides // {
     libc = attrs: { buildInputs = []; };
   };
@@ -199,23 +215,35 @@ Three more parameters can be overridden:
 - The version of rustc used to compile the crate:
 
   ```
-  hello_0_1_0.override { rust = pkgs.rust; };
+  (hello {}).override { rust = pkgs.rust; };
   ```
 
 - Whether to build in release mode or debug mode (release mode by
   default):
 
   ```
-  hello_0_1_0.override { release = false; };
+  (hello {}).override { release = false; };
   ```
 
 - Whether to print the commands sent to rustc when building
   (equivalent to `--verbose` in cargo:
 
   ```
-  hello_0_1_0.override { verbose = false; };
+  (hello {}).override { verbose = false; };
   ```
 
+One can also supply features switches. For example, if we want to
+compile `diesel_cli` only with the `postgres` feature, and no default
+features, we would write:
+
+```
+(callPackage ./diesel.nix {}).diesel {
+  default = false;
+  postgres = true;
+}
+```
+
+
 
 ## Using the Rust nightlies overlay
 

pkgs/top-level/all-packages.nix

@@ -6488,11 +6488,7 @@ with pkgs;
 
   buildRustCrate = callPackage ../build-support/rust/build-rust-crate.nix { };
 
-  carnix =
-    let carnix = callPackage ../build-support/rust/carnix.nix { };
-        carnixFeatures = carnix.carnix_0_6_0_features {};
-    in
-    carnix.carnix_0_6_0 carnixFeatures;
+  carnix = (callPackage ../build-support/rust/carnix.nix { }).carnix { };
 
   defaultCrateOverrides = callPackage ../build-support/rust/default-crate-overrides.nix { };