ci: eval devshell after checkout

.github/workflows/build-and-test.yml

@@ -9,10 +9,11 @@ env:
   NEMU_HOME: "${{ github.workspace }}/nemu"
 
 jobs:
-  openperf_build_test:
+  test:
     runs-on: ubuntu-latest
 
     strategy:
+      max-parallel: 4
       matrix:
         test_name: ["mcf", "x264", "tcc", "stream", "linpack", "gemm", "whetstone"]
         test_size: ["test", "ref"]
@@ -21,20 +22,14 @@ jobs:
           - test_size: "ref"
             test_name: "tcc"
     steps:
-      - uses: cachix/install-nix-action@v27
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
+
+      - uses: nixbuild/nix-quick-install-action@v27
 
       - uses: cachix/cachix-action@v14
         with:
           name: ysyx
           authToken: '${{ secrets.CACHIX_SIGNING_KEY }}'
 
-      - name: Eval devshell
-        id: eval-devshell
-        run: |
-          echo "devshell-output=$(nix eval ./openperf#devShells.x86_64-linux.${{ matrix.arch }} --json)" >> "$GITHUB_OUTPUT"
-
       - name: Checkout Main Repo (openperf)
         id: checkout-openperf
         uses: actions/checkout@v4
@@ -58,25 +53,6 @@ jobs:
           repository: xinyangli/openperf-abstract-machine
           path: abstract-machine
 
-      - name: Restore and cache Nix store
-        uses: nix-community/cache-nix-action@v5
-        with:
-          # restore and save a cache using this key
-          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix') }}
-          # if there's no cache hit, restore a cache by this prefix
-          restore-prefixes-first-match: nix-${{ runner.os }}-
-          # collect garbage until Nix store size (in bytes) is at most this number
-          # before trying to save a new cache
-          gc-max-store-size-linux: 1073741824
-          # do purge caches
-          purge: true
-          # purge all versions of the cache
-          purge-prefixes: cache-${{ runner.os }}-
-          # created more than this number of seconds ago relative to the start of the `Post Restore` phase
-          purge-created: 0
-          # except the version with the `primary-key`, if it exists
-          purge-primary-key: never
-
       - name: Prepare devshell
         run: |
           mkdir -p /tmp/env
@@ -85,7 +61,7 @@ jobs:
       - name: Cache common libraries
         uses: actions/cache@v4
         with:
-          key: openperf-common-${{ matrix.arch }}-${{ steps.eval-devshell.outputs.devshell-output }}-${{ steps.checkout-openperf.outputs.commit }}-${{ steps.checkout-am.outputs.commit }}
+          key: openperf-common-${{ matrix.arch }}-${{ hashFiles('**/*.nix') }}-${{ steps.checkout-openperf.outputs.commit }}-${{ steps.checkout-am.outputs.commit }}
           path: |
             openperf/src/common
 

.gitignore

@@ -18,3 +18,5 @@ build/
 !.gitignore
 .vscode
 abstract-machine/
+!.gitea
+!.github