Expose consts to make them easily reusable by linters runners

filebuildtag.go

@@ -14,12 +14,20 @@ import (
 	"golang.org/x/tools/go/ast/inspector"
 )
 
-// Doc of the linter.
-const Doc = `check that Go files have the expected build tags in the "// +build" instruction
+const (
+	// Doc of the linter.
+	Doc = `check that Go files have the expected build tags in the "// +build" instruction
 
 Bind file patterns to build tags, for instance:
 	File named "bar.go" must have the "baz" build tag
 	Files matching "*_integration_test.go" must have the "integration" build tag`
+	// FlagFiletagsName is the name of the default filetags flag. It is exported to be reused from linters runners.
+	FlagFiletagsName = "filetags"
+	// FlagFiletagsDoc is the usage doc of the default filetags flag. It is exported to be reused from linters runners.
+	FlagFiletagsDoc = `Comma separated list of file names and build tags using the form "pattern:tag". For example:
+- Single file: "*foo.go:tag1"
+- Multiple files: "*foo.go:tag1,*foo2.go:tag2"`
+)
 
 var Analyzer = &analysis.Analyzer{
 	Name:     "filebuildtag",
@@ -29,15 +37,9 @@ var Analyzer = &analysis.Analyzer{
 	Requires: []*analysis.Analyzer{inspect.Analyzer},
 }
 
-const flagFiletagsDoc = `Comma separated list of file names and build tags using the form "pattern:tag". For example:
-- Single file: "*foo.go:tag1"
-- Multiple files: "*foo.go:tag1,*foo2.go:tag2"`
-
-const flagFiletagsName = "filetags"
-
 func flags() flag.FlagSet {
 	fs := flag.NewFlagSet("", flag.ExitOnError)
-	fs.String(flagFiletagsName, "", flagFiletagsDoc)
+	fs.String(FlagFiletagsName, "", FlagFiletagsDoc)
 	return *fs
 }
 
@@ -79,7 +81,7 @@ func run(pass *analysis.Pass) (interface{}, error) {
 
 func parseFlags(flags flag.FlagSet) (map[string]string, error) {
 	filetags := make(map[string]string)
-	f := flags.Lookup(flagFiletagsName)
+	f := flags.Lookup(FlagFiletagsName)
 	if f == nil {
 		return filetags, nil
 	}

filebuildtag_test.go

@@ -102,7 +102,7 @@ func Test_parseFlags(t *testing.T) {
 
 func newFlagSet(t *testing.T, args string) flag.FlagSet {
 	fs := flags()
-	err := fs.Set(flagFiletagsName, args)
+	err := fs.Set(FlagFiletagsName, args)
 	require.NoError(t, err)
 	return fs
 }