ci: reduce test matrix

Author: ernado

.github/workflows/ci.yml

@@ -0,0 +1,70 @@
+name: ci
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        flags: [""]
+        arch:
+          - amd64
+        runner:
+          - ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+          cache: false
+
+      - name: Get Go environment
+        id: go-env
+        shell: bash
+        run: |
+          echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
+          echo "modcache=$(go env GOMODCACHE)" >> $GITHUB_ENV
+
+        # Build cache key prefix, using runner OS and arch.
+      - name: Compute cache prefix
+        id: cache-prefix
+        shell: bash
+        env:
+          RUNNER_PREFIX: ${{ runner.os }}-${{ runner.arch }}-go
+          ARCH_PREFIX: ${{ matrix.arch != 'amd64' && format('-{0}', matrix.arch) || '' }}
+          RACE_PREFIX: ${{ contains(matrix.flags, '-race') && '-race' || '' }}
+        run:
+          echo "cache_prefix=$RUNNER_PREFIX$ARCH_PREFIX$RACE_PREFIX" >> $GITHUB_ENV
+
+      - name: Set up cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.cache }}
+            ${{ env.modcache }}
+          key: ${{ env.cache_prefix }}-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ env.cache_prefix }}-
+
+      - name: Run tests
+        env:
+          GOARCH: ${{ matrix.arch }}
+          GOFLAGS: ${{ matrix.flags }}
+        run: go test --timeout 15m ./...
+
+      # Keep benchmark up to date.
+      - name: Run benchmarks
+        if: ${{ !contains(matrix.flags, '-race') }}
+        env:
+          GOARCH: ${{ matrix.arch }}
+          GOFLAGS: ${{ matrix.flags }}
+        run: go test --timeout 15m --benchtime 3x --benchmem --bench "Benchmark" --run=$^. ./...

.github/workflows/x.yml

@@ -9,7 +9,5 @@ on:
 # Common Go workflows from go faster
 # See https://github.com/go-faster/x
 jobs:
-  test:
-    uses: go-faster/x/.github/workflows/test.yml@main
   lint:
     uses: go-faster/x/.github/workflows/lint.yml@main