examples: drop nixpkgs-for-wasm-bindgen

The examples were already hard coding a concrete version of
wasm-bindgen-cli so having the extra input was both useless and
confusing

examples/trunk-workspace/flake.nix

@@ -4,10 +4,6 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 
-    # The version of wasm-bindgen-cli needs to match the version in Cargo.lock
-    # Update this to include the version you need
-    nixpkgs-for-wasm-bindgen.url = "github:NixOS/nixpkgs/4e6868b1aa3766ab1de169922bb3826143941973";
-
     crane.url = "github:ipetkov/crane";
 
     flake-utils.url = "github:numtide/flake-utils";
@@ -18,7 +14,7 @@
     };
   };
 
-  outputs = { self, nixpkgs, crane, flake-utils, rust-overlay, nixpkgs-for-wasm-bindgen, ... }:
+  outputs = { self, nixpkgs, crane, flake-utils, rust-overlay, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {
@@ -33,11 +29,7 @@
           # wasm32-unknown-unknown is required for trunk.
           targets = [ "wasm32-unknown-unknown" ];
         };
-        craneLib = ((crane.mkLib pkgs).overrideToolchain rustToolchainFor).overrideScope (_final: _prev: {
+        craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchainFor;
-          # The version of wasm-bindgen-cli needs to match the version in Cargo.lock. You
-          # can unpin this if your nixpkgs commit contains the appropriate wasm-bindgen-cli version
-          inherit (import nixpkgs-for-wasm-bindgen { inherit system; }) wasm-bindgen-cli;
-        });
 
         # When filtering sources, we want to allow assets other than .rs files
         unfilteredRoot = ./.; # The original, unfiltered source
@@ -113,6 +105,12 @@
             version = "0.2.93";
             hash = "sha256-DDdu5mM3gneraM85pAepBXWn3TMofarVR4NbjMdz3r0=";
             cargoHash = "sha256-birrg+XABBHHKJxfTKAMSlmTVYLmnmqMDfRnmG6g/YQ=";
+            # When updating to a new version comment out the above two lines and
+            # uncomment the bottom two lines. Then try to do a build, which will fail
+            # but will print out the correct value for `hash`. Replace the value and then
+            # repeat the process but this time the printed value will be for `cargoHash`
+            # hash = lib.fakeHash;
+            # cargoHash = lib.fakeHash;
           };
         });
       in

examples/trunk/flake.nix

@@ -4,10 +4,6 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 
-    # The version of wasm-bindgen-cli needs to match the version in Cargo.lock
-    # Update this to include the version you need
-    nixpkgs-for-wasm-bindgen.url = "github:NixOS/nixpkgs/4e6868b1aa3766ab1de169922bb3826143941973";
-
     crane.url = "github:ipetkov/crane";
 
     flake-utils.url = "github:numtide/flake-utils";
@@ -18,7 +14,7 @@
     };
   };
 
-  outputs = { self, nixpkgs, crane, flake-utils, rust-overlay, nixpkgs-for-wasm-bindgen, ... }:
+  outputs = { self, nixpkgs, crane, flake-utils, rust-overlay, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {
@@ -33,11 +29,7 @@
           # wasm32-unknown-unknown is required for trunk
           targets = [ "wasm32-unknown-unknown" ];
         };
-        craneLib = ((crane.mkLib pkgs).overrideToolchain rustToolchainFor).overrideScope (_final: _prev: {
+        craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchainFor;
-          # The version of wasm-bindgen-cli needs to match the version in Cargo.lock. You
-          # can unpin this if your nixpkgs commit contains the appropriate wasm-bindgen-cli version
-          inherit (import nixpkgs-for-wasm-bindgen { inherit system; }) wasm-bindgen-cli;
-        });
 
         # When filtering sources, we want to allow assets other than .rs files
         unfilteredRoot = ./.; # The original, unfiltered source
@@ -87,6 +79,12 @@
             version = "0.2.93";
             hash = "sha256-DDdu5mM3gneraM85pAepBXWn3TMofarVR4NbjMdz3r0=";
             cargoHash = "sha256-birrg+XABBHHKJxfTKAMSlmTVYLmnmqMDfRnmG6g/YQ=";
+            # When updating to a new version comment out the above two lines and
+            # uncomment the bottom two lines. Then try to do a build, which will fail
+            # but will print out the correct value for `hash`. Replace the value and then
+            # repeat the process but this time the printed value will be for `cargoHash`
+            # hash = lib.fakeHash;
+            # cargoHash = lib.fakeHash;
           };
         });
 

test/flake.lock

@@ -102,22 +102,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-for-wasm-bindgen": {
-      "locked": {
-        "lastModified": 1691495139,
-        "narHash": "sha256-+zZIRTtXlA8gN8HPzczphPnB9L+yYpidBmFxKqWQy+A=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "4e6868b1aa3766ab1de169922bb3826143941973",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "4e6868b1aa3766ab1de169922bb3826143941973",
-        "type": "github"
-      }
-    },
     "nixpkgs-latest-release": {
       "locked": {
         "lastModified": 1730651795,
@@ -142,7 +126,6 @@
         "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-for-wasm-bindgen": "nixpkgs-for-wasm-bindgen",
         "nixpkgs-latest-release": "nixpkgs-latest-release",
         "rust-overlay": "rust-overlay"
       }

test/flake.nix

@@ -4,10 +4,6 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     nixpkgs-latest-release.url = "github:NixOS/nixpkgs/release-24.05";
 
-    # The version of wasm-bindgen-cli needs to match the version in Cargo.lock
-    # Update this to include the version you need
-    nixpkgs-for-wasm-bindgen.url = "github:NixOS/nixpkgs/4e6868b1aa3766ab1de169922bb3826143941973";
-
     advisory-db = {
       url = "github:rustsec/advisory-db";
       flake = false;