lll: skip imports (#3288)

Author: ibez92

Diff for: pkg/golinters/lll.go

@@ -84,11 +84,29 @@ func getLLLIssuesForFile(filename string, maxLineLen int, tabSpaces string) ([]r
 	}
 	defer f.Close()
 
-	lineNumber := 1
+	lineNumber := 0
+	multiImportEnabled := false
+
 	scanner := bufio.NewScanner(f)
 	for scanner.Scan() {
+		lineNumber++
+
 		line := scanner.Text()
 		line = strings.ReplaceAll(line, "\t", tabSpaces)
+
+		if strings.HasPrefix(line, "import") {
+			multiImportEnabled = strings.HasSuffix(line, "(")
+			continue
+		}
+
+		if multiImportEnabled {
+			if line == ")" {
+				multiImportEnabled = false
+			}
+
+			continue
+		}
+
 		lineLen := utf8.RuneCountInString(line)
 		if lineLen > maxLineLen {
 			res = append(res, result.Issue{
@@ -100,7 +118,6 @@ func getLLLIssuesForFile(filename string, maxLineLen int, tabSpaces string) ([]r
 				FromLinter: lllName,
 			})
 		}
-		lineNumber++
 	}
 
 	if err := scanner.Err(); err != nil {

Diff for: test/testdata/configs/lll_import.yml

@@ -0,0 +1,4 @@
+linters-settings:
+  lll:
+    tab-width: 4
+    line-length: 60

Diff for: test/testdata/lll_multi_import.go

@@ -0,0 +1,14 @@
+//golangcitest:args -Elll
+//golangcitest:config_path testdata/configs/lll_import.yml
+//golangcitest:expected_exitcode 0
+package testdata
+
+import (
+	anotherVeryLongImportAliasNameForTest "github.com/golangci/golangci-lint/internal/golinters"
+	veryLongImportAliasNameForTest "github.com/golangci/golangci-lint/internal/golinters"
+)
+
+func LllMultiImport() {
+	_ = veryLongImportAliasNameForTest.NewLLL(nil)
+	_ = anotherVeryLongImportAliasNameForTest.NewLLL(nil)
+}

Diff for: test/testdata/lll_single_import.go

@@ -0,0 +1,10 @@
+//golangcitest:args -Elll
+//golangcitest:config_path testdata/configs/lll_import.yml
+//golangcitest:expected_exitcode 0
+package testdata
+
+import veryLongImportAliasNameForTest "github.com/golangci/golangci-lint/internal/golinters"
+
+func LllSingleImport() {
+	_ = veryLongImportAliasNameForTest.NewLLL(nil)
+}