[chore] Run lint and test-race GitHub jobs on Windows

.gitattributes

@@ -0,0 +1,3 @@
+* text=auto eol=lf
+*.{cmd,[cC][mM][dD]} text eol=crlf
+*.{bat,[bB][aA][tT]} text eol=crlf

.github/workflows/ci.yml

@@ -39,14 +39,19 @@ jobs:
         path: ~/.tools
         key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('./internal/tools/**') }}
     - name: Run linters
-      run: make multimod-verify dependabot-check license-check lint
+      run: |
+        make multimod-verify dependabot-check license-check lint
+        GOOS=windows make golangci-lint
     - name: Build
       run: make build
     - name: Check clean repository
       run: make check-clean-work-tree
 
   test-race:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Install Go
       uses: actions/setup-go@v5

chloggen/internal/chlog/summary_test.go

@@ -24,7 +24,6 @@ import (
 )
 
 func TestSummary(t *testing.T) {
-
 	brk1 := Entry{
 		ChangeType: Breaking,
 		Component:  "foo",

multimod/internal/diff/diff_test.go

@@ -6,6 +6,7 @@ package diff
 import (
 	"errors"
 	"path/filepath"
+	"runtime"
 	"testing"
 
 	"github.com/go-git/go-git/v5"
@@ -61,6 +62,10 @@ func TestNormalizeTag(t *testing.T) {
 }
 
 func TestHasChanged(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("diff does not work on Windows. Tracked under: https://github.com/open-telemetry/opentelemetry-go-build-tools/issues/467.")
+	}
+
 	tests := []struct {
 		name         string
 		tag          string
@@ -135,9 +140,11 @@ type MockClient struct {
 func (c MockClient) HeadCommit(_ *git.Repository) (*object.Commit, error) {
 	return nil, c.headCommitErr
 }
+
 func (c MockClient) TagCommit(_ *git.Repository, _ string) (*object.Commit, error) {
 	return nil, c.tagCommitErr
 }
+
 func (c MockClient) FilesChanged(_ *object.Commit, _ *object.Commit, _ string, _ string) ([]string, error) {
 	return c.files, nil
 }