Initial commit

examples/.gitignore

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+flake.lock
+target/

examples/crane/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rusty-hello"
+version = "0.1.0"

examples/crane/Cargo.toml

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+[package]
+name = "rusty-hello"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

examples/crane/flake.nix

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+{
+  description = "An example of a shell environment with a Crane-built package";
+
+  inputs = {
+    rust.url = "git+https://forgejo.alt0r.com/braunse/rust-part";
+    nixpkgs.follows = "rust/nixpkgs";
+    parts.follows = "rust/parts";
+    rustManifest.follows = "rust/rustManifest";
+  };
+
+  outputs = inputs: inputs.parts.lib.mkFlake { inherit inputs; } {
+    imports = [ inputs.rust.flakeModules.crane ];
+
+    systems = [ "x86_64-linux" ];
+
+    perSystem =
+      { pkgs, craneLib, self', ... }: {
+        packages.rusty-hello = craneLib.buildPackage {
+          src = craneLib.cleanCargoSource (craneLib.path ./.);
+          strictDeps = true;
+        };
+
+        checks = {
+          craneCompilesRustPackage = pkgs.stdenv.mkDerivation {
+            name = "check-crane-compiles-rust-package";
+            dontUnpack = true;
+            buildPhase = ''
+              set -euo pipefail
+
+              # Check that the compilation of our trivial package yielded something we can actually execute.
+              OUTPUT="$(${self'.packages.rusty-hello}/bin/rusty-hello)"
+              if [[ "$OUTPUT" != "Rusty-Hello" ]]; then
+                echo "Received output '$OUTPUT', expected 'Rusty-Hello'" >&2
+                exit 1
+              fi
+
+              touch $out
+            '';
+          };
+        };
+      };
+  };
+}

examples/crane/src/main.rs

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+fn main() {
+    println!("Rusty-Hello");
+}

examples/fenix/Cargo.toml

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+[package]
+name = "fenix"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

examples/fenix/flake.nix

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+{
+  description = "An example of a shell environment with a Fenix toolchain";
+
+  inputs = {
+    rust.url = "git+https://forgejo.alt0r.com/braunse/rust-part";
+    nixpkgs.follows = "rust/nixpkgs";
+    parts.follows = "rust/parts";
+    rustManifest.follows = "rust/rustManifest";
+  };
+
+  outputs = inputs: inputs.parts.lib.mkFlake { inherit inputs; } {
+    imports = [ inputs.rust.flakeModules.fenix ];
+
+    systems = [ "x86_64-linux" ];
+
+    rust.fenix.manifestFile = inputs.rustManifest;
+    rust.fenix.components = [ "rustfmt" ];
+    rust.fenix.targetComponents.wasm32-unknown-unknown = [ "rust-std" ];
+
+    perSystem =
+      { pkgs, fenixToolchain, ... }: {
+        checks = {
+          haveRustChain = pkgs.stdenv.mkDerivation {
+            name = "check-rust-toolchain-is-present";
+            dontUnpack = true;
+            buildPhase = ''
+              set -euo pipefail
+
+              echo "Checking for cargo" >&2
+              ${fenixToolchain}/bin/cargo --version >/dev/null
+
+              echo "Checking for rustc" >&2
+              ${fenixToolchain}/bin/rustc --version >/dev/null
+
+              echo "Checking for rustfmt" >&2
+              ${fenixToolchain}/bin/rustfmt --version >/dev/null
+
+              echo "Checking compiler compiles natively" >&2
+              touch lib.rs
+              ${fenixToolchain}/bin/rustc --crate-type rlib --crate-name nativechecklib lib.rs
+
+              echo "Checking compiler compiles for wasm32-unknown-unknown" >&2
+              ${fenixToolchain}/bin/rustc --crate-type rlib --crate-name crosschecklib --target wasm32-unknown-unknown lib.rs
+
+              touch $out
+            '';
+          };
+        };
+      };
+  };
+}

examples/fenix/src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}