Fix Rust pinning

README.md

@@ -7,9 +7,9 @@ Colmena is still an early prototype.
 
 ## Tutorial
 
-Enter a `nix-shell` with `colmena` with:
+Enter a shell with `colmena` with:
 ```
-nix-shell test-shell.nix
+nix-shell
 ```
 
 Colmena should work with your existing NixOps and Morph configurations with minimal modification.

default.nix

@@ -1,5 +1,14 @@
 {
   pkgs ? import ./pkgs.nix {},
 }: let
-  cargo = pkgs.callPackage ./Cargo.nix {};
-in cargo.rootCrate.build
+  rustPlatform = if pkgs ? pinnedRust then pkgs.makeRustPlatform {
+    rustc = pkgs.pinnedRust;
+    cargo = pkgs.pinnedRust;
+  } else pkgs.rustPlatform;
+in rustPlatform.buildRustPackage {
+  name = "colmena-dev";
+  version = "0.1.0";
+
+  src = ./.;
+  cargoSha256 = "06qw50wd8w9b6j7hayx75c9hvff9kxa0cllaqg8x854b1ww9pk8j";
+}

dev-shell.nix

@@ -2,6 +2,6 @@ let
   pkgs = import ./pkgs.nix {};
 in pkgs.mkShell {
   buildInputs = with pkgs; [
-    (import ./Cargo.nix {}).rootCrate.build
+    pinnedRust
   ];
 }

nix/sources.json

@@ -1,16 +1,4 @@
 {
-    "crate2nix": {
-        "branch": "master",
-        "description": "nix build file generator for rust crates",
-        "homepage": "",
-        "owner": "kolloch",
-        "repo": "crate2nix",
-        "rev": "0c81027889259c6a45221a157f9c4a56e7235c85",
-        "sha256": "0wp1i83ralnz0v6a95122d0hfzwlg1281lvv3mzrxcxl8mka8z3n",
-        "type": "tarball",
-        "url": "https://github.com/kolloch/crate2nix/archive/0c81027889259c6a45221a157f9c4a56e7235c85.tar.gz",
-        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
-    },
     "niv": {
         "branch": "master",
         "description": "Easy dependency management for Nix projects",

pkgs.nix

@@ -11,11 +11,9 @@
           date = rustNightly;
         };
       in rec {
-        rustc = rustChannel.rust.override {
+        pinnedRust = rustChannel.rust.override {
           extensions = [ "rust-src" ];
         };
-        inherit (rustChannel) cargo rust-fmt rust-std clippy;
-        crate2nix = super.callPackage sources.crate2nix {};
       })
     ];
   };

shell.nix

@@ -1,8 +1,7 @@
 let
   pkgs = import ./pkgs.nix {};
 in pkgs.mkShell {
-  buildInputs = with pkgs; [
-    #rust
-    crate2nix
+  buildInputs = [
+    (import ./default.nix {})
   ];
 }