fix(#180): wire fixsha into CI

.github/workflows/nix.yml

@@ -12,11 +12,32 @@ jobs:
       contents: write
     steps:
       - uses: actions/checkout@v6
+        with:
+          ref: ${{ github.head_ref }}
+          fetch-depth: 0
 
       - name: Install Nix
         uses: cachix/install-nix-action@v31
 
-      - name: Build package
-        id: build
-        continue-on-error: true
-        run: nix build -f default.nix
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+
+      - name: Install fixsha
+        run: cargo install fixsha
+
+      - name: Run fixsha
+        run: fixsha
+
+      - name: Commit hash fixes
+        if: github.event_name == 'pull_request'
+        run: |
+          if [[ -n $(git status -s package.nix) ]]; then
+            git config user.name "Akrm Al-Hakimi"
+            git config user.email "alhakimiakrmj@gmail.com"
+            git add package.nix
+            git commit -m "chore(nix): fix cargoHash"
+            git push
+          fi

package.nix

@@ -19,7 +19,7 @@ rustPlatform.buildRustPackage {
 
   src = ./.;
 
-  cargoHash = "sha256-MhxJFul0+N7K2s/5HaLy2JkEJxCAp4I8B62yw5CIZkY=";
+  cargoHash = "sha256-B66aZgJyhk3cn9yz125Nf2on+6PC/kvee4HiIVThhfg=";
 
   nativeBuildInputs = [
     pkg-config
@@ -47,4 +47,4 @@ rustPlatform.buildRustPackage {
     mainProgram = "nmrs";
     platforms = platforms.linux ++ platforms.darwin;
   };
-}
+}