gh: update workflows and add test for macos arm64

.github/workflows/linux.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with:
-        fetch-depth: 0
+        fetch-depth: 1
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
@@ -25,4 +25,4 @@ jobs:
     - name: Test Race
       run: go test -race ./...
     - name: Test Builds
-      run: make test_build
+      run: make test_build --jobs=4

.github/workflows/macos.yml

@@ -1,4 +1,4 @@
-name: Test fastwalk on macOS
+name: Test fastwalk on macOS amd64
 
 on:
   push:
@@ -8,14 +8,14 @@ on:
 
 jobs:
   build:
-    runs-on: macos-latest
+    runs-on: macos-13
     strategy:
       matrix:
         go: [1.21, 1.22]
     steps:
     - uses: actions/checkout@v4
       with:
-        fetch-depth: 0
+        fetch-depth: 1
     - name: Set up Go
       uses: actions/setup-go@v5
       with:

.github/workflows/macos_arm64.yml

@@ -0,0 +1,26 @@
+name: Test fastwalk on macOS arm64
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        go: [1.21, 1.22]
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ matrix.go }}
+    - name: Test
+      run: go test ./...
+    - name: Test Race
+      run: go test -race ./...

.github/workflows/windows.yml

@@ -15,12 +15,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
       with:
-        fetch-depth: 0
+        fetch-depth: 1
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
         go-version: ${{ matrix.go }}
-    - name: Test
-      run: go test ./...
     - name: Test Race
       run: go test -race ./...

fastwalk_test.go

@@ -321,6 +321,9 @@ func maxPathLength(t testing.TB) (root string, pathMax int) {
 // Test that we can handle PATH_MAX. This is mostly for the Unix tests
 // where we pass a buffer to ReadDirect (often getdents64(2)).
 func TestFastWalk_LongPath(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("test not needed on Windows")
+	}
 	root, pathMax := maxPathLength(t)
 	t.Log("PATH_MAX:", pathMax)