feat: add logrlint (#3093)

Co-authored-by: Fernandez Ludovic <ldez@users.noreply.github.com>

.golangci.reference.yml

@@ -1932,6 +1932,7 @@ linters:
     - interfacer
     - ireturn
     - lll
+    - logrlint
     - maintidx
     - makezero
     - maligned
@@ -2035,6 +2036,7 @@ linters:
     - interfacer
     - ireturn
     - lll
+    - logrlint
     - maintidx
     - makezero
     - maligned

Makefile

@@ -43,6 +43,10 @@ test_linters:
 	GL_TEST_RUN=1 go test -v ./test -count 1 -run TestSourcesFromTestdata/$T
 .PHONY: test_linters
 
+test_linters_sub:
+	GL_TEST_RUN=1 go test -v ./test -count 1 -run TestSourcesFromTestdataSubDir/$T
+.PHONY: test_linters_sub
+
 # Maintenance
 
 fast_generate: assets/github-action-config.json

go.mod

@@ -94,6 +94,7 @@ require (
 	github.com/tdakkota/asciicheck v0.1.1
 	github.com/tetafro/godot v1.4.11
 	github.com/timakin/bodyclose v0.0.0-20210704033933-f49887972144
+	github.com/timonwong/logrlint v0.1.0
 	github.com/tomarrell/wrapcheck/v2 v2.6.2
 	github.com/tommy-muehle/go-mnd/v2 v2.5.0
 	github.com/ultraware/funlen v0.0.3

pkg/golinters/logrlint.go

@@ -0,0 +1,19 @@
+package golinters
+
+import (
+	"github.com/timonwong/logrlint"
+	"golang.org/x/tools/go/analysis"
+
+	"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
+)
+
+func NewLogrLint() *goanalysis.Linter {
+	a := logrlint.Analyzer
+
+	return goanalysis.NewLinter(
+		a.Name,
+		a.Doc,
+		[]*analysis.Analyzer{a},
+		nil,
+	).WithLoadMode(goanalysis.LoadModeTypesInfo)
+}

pkg/lint/lintersdb/manager.go

@@ -582,6 +582,12 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 			WithSince("v1.8.0").
 			WithPresets(linter.PresetStyle),
 
+		linter.NewConfig(golinters.NewLogrLint()).
+			WithSince("v1.49.0").
+			WithLoadForGoAnalysis().
+			WithPresets(linter.PresetBugs).
+			WithURL("https://github.com/timonwong/logrlint"),
+
 		linter.NewConfig(golinters.NewMaintIdx(maintIdxCfg)).
 			WithSince("v1.44.0").
 			WithPresets(linter.PresetComplexity).

test/linters_test.go

@@ -25,6 +25,18 @@ func TestTypecheck(t *testing.T) {
 	testSourcesFromDir(t, filepath.Join(testdataDir, "notcompiles"))
 }
 
+func TestSourcesFromTestdataSubDir(t *testing.T) {
+	subDirs := []string{
+		"logrlint",
+	}
+
+	for _, dir := range subDirs {
+		t.Run(dir, func(t *testing.T) {
+			testSourcesFromDir(t, filepath.Join(testdataDir, dir))
+		})
+	}
+}
+
 func testSourcesFromDir(t *testing.T, dir string) {
 	t.Helper()
 

test/testdata/logrlint/go.mod

@@ -0,0 +1,5 @@
+module logrlint
+
+go 1.16
+
+require github.com/go-logr/logr v1.2.3

test/testdata/logrlint/logrlint.go

@@ -0,0 +1,16 @@
+//golangcitest:args -Elogrlint
+package logrlint
+
+import (
+	"fmt"
+
+	"github.com/go-logr/logr"
+)
+
+func Example() {
+	log := logr.Discard()
+	log = log.WithValues("key")                                         // want `odd number of arguments passed as key-value pairs for logging`
+	log.Info("message", "key1", "value1", "key2", "value2", "key3")     // want `odd number of arguments passed as key-value pairs for logging`
+	log.Error(fmt.Errorf("error"), "message", "key1", "value1", "key2") // want `odd number of arguments passed as key-value pairs for logging`
+	log.Error(fmt.Errorf("error"), "message", "key1", "value1", "key2", "value2")
+}