1 files changed, 69 insertions, 0 deletions
diff --git a/vendor/github.com/mgechev/revive/rule/file-header.go b/vendor/github.com/mgechev/revive/rule/file-header.go
new file mode 100644
index 0000000000..6df974e91a
--- /dev/null
+++ b/vendor/github.com/mgechev/revive/rule/file-header.go
@@ -0,0 +1,69 @@
+package rule
+
+import (
+	"regexp"
+
+	"github.com/mgechev/revive/lint"
+)
+
+// FileHeaderRule lints given else constructs.
+type FileHeaderRule struct{}
+
+var (
+	multiRegexp  = regexp.MustCompile("^/\\*")
+	singleRegexp = regexp.MustCompile("^//")
+)
+
+// Apply applies the rule to given file.
+func (r *FileHeaderRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure {
+	if len(arguments) != 1 {
+		panic(`invalid configuration for "file-header" rule`)
+	}
+
+	header, ok := arguments[0].(string)
+	if !ok {
+		panic(`invalid argument for "file-header" rule: first argument should be a string`)
+	}
+
+	failure := []lint.Failure{
+		{
+			Node:       file.AST,
+			Confidence: 1,
+			Failure:    "the file doesn't have an appropriate header",
+		},
+	}
+
+	if len(file.AST.Comments) == 0 {
+		return failure
+	}
+
+	g := file.AST.Comments[0]
+	if g == nil {
+		return failure
+	}
+	comment := ""
+	for _, c := range g.List {
+		text := c.Text
+		if multiRegexp.Match([]byte(text)) {
+			text = text[2 : len(text)-2]
+		} else if singleRegexp.Match([]byte(text)) {
+			text = text[2:]
+		}
+		comment += text
+	}
+
+	regex, err := regexp.Compile(header)
+	if err != nil {
+		panic(err.Error())
+	}
+
+	if !regex.Match([]byte(comment)) {
+		return failure
+	}
+	return nil
+}
+
+// Name returns the rule name.
+func (r *FileHeaderRule) Name() string {
+	return "file-header"
+}