1 files changed, 39 insertions, 0 deletions
diff --git a/go/tools/builders/nolint.go b/go/tools/builders/nolint.go
new file mode 100644
index 00000000..e6e3c043
--- /dev/null
+++ b/go/tools/builders/nolint.go
@@ -0,0 +1,39 @@
+// Copyright 2023 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import "strings"
+
+// Parse nolint directives and return the applicable linters. If all linters
+// apply, returns (nil, true).
+func parseNolint(text string) (map[string]bool, bool) {
+	text = strings.TrimLeft(text, "/ ")
+	if !strings.HasPrefix(text, "nolint") {
+		return nil, false
+	}
+	parts := strings.Split(text, ":")
+	if len(parts) == 1 {
+		return nil, true
+	}
+	linters := strings.Split(parts[1], ",")
+	result := map[string]bool{}
+	for _, linter := range linters {
+		if strings.EqualFold(linter, "all") {
+			return nil, true
+		}
+		result[linter] = true
+	}
+	return result, true
+}