Add golangci (#6418)

.drone.yml

@@ -74,12 +74,10 @@ pipeline:
     commands:
       - make clean
       - make generate
-      - make vet
-      - make lint
-      - make fmt-check
+      - make golangci-lint
+      - make revive
       - make swagger-check
       - make swagger-validate
-      - make misspell-check
       - make test-vendor
       - make build
     when:

.golangci.yml

@@ -0,0 +1,97 @@
+linters:
+  enable:
+    - gosimple
+    - deadcode
+    - typecheck
+    - govet
+    - errcheck
+    - staticcheck
+    - unused
+    - structcheck
+    - varcheck
+    - golint
+    - dupl
+    #- gocyclo # The cyclomatic complexety of a lot of functions is too high, we should refactor those another time.
+    - gofmt
+    - misspell
+    - gocritic
+  enable-all: false
+  disable-all: true
+  fast: false
+
+linters-settings:
+  gocritic:
+    disabled-checks:
+      - ifElseChain
+      - singleCaseSwitch # Every time this occured in the code, there  was no other way.
+
+issues:
+  exclude-rules:
+    # Exclude some linters from running on tests files.
+    - path: _test\.go
+      linters:
+        - gocyclo
+        - errcheck
+        - dupl
+        - gosec
+        - unparam
+        - staticcheck
+    - path: models/migrations/v
+      linters:
+        - gocyclo
+        - errcheck
+        - dupl
+        - gosec
+    - linters:
+        - dupl
+      text: "webhook"
+    - linters:
+        - gocritic
+      text: "`ID' should not be capitalized"
+    - path: modules/templates/helper.go
+      linters:
+        - gocritic
+    - linters:
+        - unused
+        - deadcode
+      text: "swagger"
+    - path: contrib/pr/checkout.go
+      linters:
+        - errcheck
+    - path: models/issue.go
+      linters:
+        - errcheck
+    - path: models/migrations/
+      linters:
+        - errcheck
+    - path: modules/log/
+      linters:
+        - errcheck
+    - path: routers/routes/routes.go
+      linters:
+        - dupl
+    - path: routers/repo/view.go
+      linters:
+        - dupl
+    - path: models/migrations/
+      linters:
+        - unused
+    - linters:
+        - staticcheck
+      text: "argument x is overwritten before first use"
+    - path: modules/httplib/httplib.go
+      linters:
+        - staticcheck
+    # Enabling this would require refactoring the methods and how they are called.
+    - path: models/issue_comment_list.go
+      linters:
+        - dupl
+    # "Destroy" is misspelled in github.com/go-macaron/session/session.go:213 so it's not our responsability to fix it
+    - path: modules/session/virtual.go
+      linters:
+        - misspell
+      text: '`Destory` is a misspelling of `Destroy`'
+    - path: modules/session/memory.go
+      linters:
+        - misspell
+      text: '`Destory` is a misspelling of `Destroy`'

Makefile

@@ -135,6 +135,10 @@ errcheck:
 
 .PHONY: lint
 lint:
+	@echo 'make lint is depricated. Use "make revive" if you want to use the old lint tool, or "make golangci-lint" to run a complete code check.'
+
+.PHONY: revive
+revive:
 	@hash revive > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
 		$(GO) get -u github.com/mgechev/revive; \
 	fi
@@ -461,3 +465,10 @@ generate-images:
 .PHONY: pr
 pr:
 	$(GO) run contrib/pr/checkout.go $(PR)
+
+.PHONY: golangci-lint
+golangci-lint:
+	@hash golangci-lint > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(GOPATH)/bin v1.16.0; \
+	fi
+	golangci-lint run

cmd/admin.go

@@ -481,7 +481,7 @@ func runUpdateOauth(c *cli.Context) error {
 	}
 
 	// update custom URL mapping
-	var customURLMapping *oauth2.CustomURLMapping
+	var customURLMapping = &oauth2.CustomURLMapping{}
 
 	if oAuth2Config.CustomURLMapping != nil {
 		customURLMapping.TokenURL = oAuth2Config.CustomURLMapping.TokenURL

cmd/cert.go

@@ -170,17 +170,28 @@ func runCert(c *cli.Context) error {
 	if err != nil {
 		log.Fatalf("Failed to open cert.pem for writing: %v", err)
 	}
-	pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
-	certOut.Close()
+	err = pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
+	if err != nil {
+		log.Fatalf("Failed to encode certificate: %v", err)
+	}
+	err = certOut.Close()
+	if err != nil {
+		log.Fatalf("Failed to write cert: %v", err)
+	}
 	log.Println("Written cert.pem")
 
 	keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
 	if err != nil {
 		log.Fatalf("Failed to open key.pem for writing: %v", err)
 	}
-	pem.Encode(keyOut, pemBlockForKey(priv))
-	keyOut.Close()
+	err = pem.Encode(keyOut, pemBlockForKey(priv))
+	if err != nil {
+		log.Fatalf("Failed to encode key: %v", err)
+	}
+	err = keyOut.Close()
+	if err != nil {
+		log.Fatalf("Failed to write key: %v", err)
+	}
 	log.Println("Written key.pem")
-
 	return nil
 }

cmd/serv.go

@@ -30,7 +30,6 @@ import (
 )
 
 const (
-	accessDenied        = "Repository does not exist or you do not have access"
 	lfsAuthenticateVerb = "git-lfs-authenticate"
 )
 
@@ -67,7 +66,7 @@ func checkLFSVersion() {
 }
 
 func setup(logPath string) {
-	log.DelLogger("console")
+	_ = log.DelLogger("console")
 	setting.NewContext()
 	checkLFSVersion()
 }
@@ -112,7 +111,9 @@ func runServ(c *cli.Context) error {
 	}
 
 	if len(c.Args()) < 1 {
-		cli.ShowSubcommandHelp(c)
+		if err := cli.ShowSubcommandHelp(c); err != nil {
+			fmt.Printf("error showing subcommand help: %v\n", err)
+		}
 		return nil
 	}
 

cmd/web.go

@@ -178,11 +178,16 @@ func runWeb(ctx *cli.Context) error {
 		}
 		err = runHTTPS(listenAddr, setting.CertFile, setting.KeyFile, context2.ClearHandler(m))
 	case setting.FCGI:
-		listener, err := net.Listen("tcp", listenAddr)
+		var listener net.Listener
+		listener, err = net.Listen("tcp", listenAddr)
 		if err != nil {
 			log.Fatal("Failed to bind %s: %v", listenAddr, err)
 		}
-		defer listener.Close()
+		defer func() {
+			if err := listener.Close(); err != nil {
+				log.Fatal("Failed to stop server: %v", err)
+			}
+		}()
 		err = fcgi.Serve(listener, context2.ClearHandler(m))
 	case setting.UnixSocket:
 		if err := os.Remove(listenAddr); err != nil && !os.IsNotExist(err) {

contrib/pr/checkout.go

@@ -91,8 +91,7 @@ func runPR() {
 	routers.NewServices()
 	//x, err = xorm.NewEngine("sqlite3", "file::memory:?cache=shared")
 
-	var helper testfixtures.Helper
-	helper = &testfixtures.SQLite{}
+	var helper testfixtures.Helper = &testfixtures.SQLite{}
 	models.NewEngine(func(_ *xorm.Engine) error {
 		return nil
 	})

integrations/branches_test.go

@@ -62,7 +62,7 @@ func branchAction(t *testing.T, button string) (*HTMLDoc, string) {
 	req = NewRequestWithValues(t, "POST", link, map[string]string{
 		"_csrf": getCsrf(t, htmlDoc.doc),
 	})
-	resp = session.MakeRequest(t, req, http.StatusOK)
+	session.MakeRequest(t, req, http.StatusOK)
 
 	url, err := url.Parse(link)
 	assert.NoError(t, err)

integrations/editor_test.go

@@ -34,7 +34,7 @@ func TestCreateFile(t *testing.T) {
 			"content":       "Content",
 			"commit_choice": "direct",
 		})
-		resp = session.MakeRequest(t, req, http.StatusFound)
+		session.MakeRequest(t, req, http.StatusFound)
 	})
 }
 
@@ -48,15 +48,15 @@ func TestCreateFileOnProtectedBranch(t *testing.T) {
 			"_csrf":     csrf,
 			"protected": "on",
 		})
-		resp := session.MakeRequest(t, req, http.StatusFound)
+		session.MakeRequest(t, req, http.StatusFound)
 		// Check if master branch has been locked successfully
 		flashCookie := session.GetCookie("macaron_flash")
 		assert.NotNil(t, flashCookie)
 		assert.EqualValues(t, "success%3DBranch%2Bprotection%2Bfor%2Bbranch%2B%2527master%2527%2Bhas%2Bbeen%2Bupdated.", flashCookie.Value)
 
 		// Request editor page
 		req = NewRequest(t, "GET", "/user2/repo1/_new/master/")
-		resp = session.MakeRequest(t, req, http.StatusOK)
+		resp := session.MakeRequest(t, req, http.StatusOK)
 
 		doc := NewHTMLParser(t, resp.Body)
 		lastCommit := doc.GetInputValueByName("last_commit")

integrations/integration_test.go

@@ -42,7 +42,7 @@ type NilResponseRecorder struct {
 }
 
 func (n *NilResponseRecorder) Write(b []byte) (int, error) {
-	n.Length = n.Length + len(b)
+	n.Length += len(b)
 	return len(b), nil
 }
 
@@ -141,8 +141,7 @@ func initIntegrationTest() {
 		if err != nil {
 			log.Fatalf("sql.Open: %v", err)
 		}
-		rows, err := db.Query(fmt.Sprintf("SELECT 1 FROM pg_database WHERE datname = '%s'",
-			models.DbCfg.Name))
+		rows, err := db.Query(fmt.Sprintf("SELECT 1 FROM pg_database WHERE datname = '%s'", models.DbCfg.Name))
 		if err != nil {
 			log.Fatalf("db.Query: %v", err)
 		}
@@ -210,7 +209,7 @@ func (s *TestSession) MakeRequest(t testing.TB, req *http.Request, expectedStatu
 	resp := MakeRequest(t, req, expectedStatus)
 
 	ch := http.Header{}
-	ch.Add("Cookie", strings.Join(resp.HeaderMap["Set-Cookie"], ";"))
+	ch.Add("Cookie", strings.Join(resp.Header()["Set-Cookie"], ";"))
 	cr := http.Request{Header: ch}
 	s.jar.SetCookies(baseURL, cr.Cookies())
 
@@ -226,7 +225,7 @@ func (s *TestSession) MakeRequestNilResponseRecorder(t testing.TB, req *http.Req
 	resp := MakeRequestNilResponseRecorder(t, req, expectedStatus)
 
 	ch := http.Header{}
-	ch.Add("Cookie", strings.Join(resp.HeaderMap["Set-Cookie"], ";"))
+	ch.Add("Cookie", strings.Join(resp.Header()["Set-Cookie"], ";"))
 	cr := http.Request{Header: ch}
 	s.jar.SetCookies(baseURL, cr.Cookies())
 
@@ -266,7 +265,7 @@ func loginUserWithPassword(t testing.TB, userName, password string) *TestSession
 	resp = MakeRequest(t, req, http.StatusFound)
 
 	ch := http.Header{}
-	ch.Add("Cookie", strings.Join(resp.HeaderMap["Set-Cookie"], ";"))
+	ch.Add("Cookie", strings.Join(resp.Header()["Set-Cookie"], ";"))
 	cr := http.Request{Header: ch}
 
 	session := emptyTestSession(t)

integrations/lfs_getobject_test.go

@@ -45,7 +45,7 @@ func storeObjectInRepo(t *testing.T, repositoryID int64, content *[]byte) string
 		lfsMetaObject = &models.LFSMetaObject{Oid: oid, Size: int64(len(*content)), RepositoryID: repositoryID}
 	}
 
-	lfsID = lfsID + 1
+	lfsID++
 	lfsMetaObject, err = models.NewLFSMetaObject(lfsMetaObject)
 	assert.NoError(t, err)
 	contentStore := &lfs.ContentStore{BasePath: setting.LFS.ContentPath}

integrations/migration-test/migration_test.go

@@ -57,21 +57,6 @@ func initMigrationTest(t *testing.T) {
 	setting.NewLogServices(true)
 }
 
-func getDialect() string {
-	dialect := "sqlite"
-	switch {
-	case setting.UseSQLite3:
-		dialect = "sqlite"
-	case setting.UseMySQL:
-		dialect = "mysql"
-	case setting.UsePostgreSQL:
-		dialect = "pgsql"
-	case setting.UseMSSQL:
-		dialect = "mssql"
-	}
-	return dialect
-}
-
 func availableVersions() ([]string, error) {
 	migrationsDir, err := os.Open("integrations/migration-test")
 	if err != nil {

integrations/testlogger.go

@@ -73,7 +73,7 @@ func PrintCurrentTest(t testing.TB, skip ...int) {
 	_, filename, line, _ := runtime.Caller(actualSkip)
 
 	if log.CanColorStdout {
-		fmt.Fprintf(os.Stdout, "=== %s (%s:%d)\n", log.NewColoredValue(t.Name()), strings.TrimPrefix(filename, prefix), line)
+		fmt.Fprintf(os.Stdout, "=== %s (%s:%d)\n", fmt.Formatter(log.NewColoredValue(t.Name())), strings.TrimPrefix(filename, prefix), line)
 	} else {
 		fmt.Fprintf(os.Stdout, "=== %s (%s:%d)\n", t.Name(), strings.TrimPrefix(filename, prefix), line)
 	}

main.go

@@ -42,7 +42,7 @@ var (
 
 func init() {
 	setting.AppVer = Version
-	setting.AppBuiltWith = formatBuiltWith(Tags)
+	setting.AppBuiltWith = formatBuiltWith()
 
 	// Grab the original help templates
 	originalAppHelpTemplate = cli.AppHelpTemplate
@@ -56,7 +56,7 @@ func main() {
 	app.Usage = "A painless self-hosted Git service"
 	app.Description = `By default, gitea will start serving using the webserver with no
 arguments - which can alternatively be run by running the subcommand web.`
-	app.Version = Version + formatBuiltWith(Tags)
+	app.Version = Version + formatBuiltWith()
 	app.Commands = []cli.Command{
 		cmd.CmdWeb,
 		cmd.CmdServ,
@@ -179,7 +179,7 @@ DEFAULT CONFIGURATION:
 `, originalTemplate, setting.CustomPath, overrided, setting.CustomConf, setting.AppPath, setting.AppWorkPath)
 }
 
-func formatBuiltWith(makeTags string) string {
+func formatBuiltWith() string {
 	var version = runtime.Version()
 	if len(MakeVersion) > 0 {
 		version = MakeVersion + ", " + runtime.Version()

models/access_test.go

@@ -10,13 +10,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-var accessModes = []AccessMode{
-	AccessModeRead,
-	AccessModeWrite,
-	AccessModeAdmin,
-	AccessModeOwner,
-}
-
 func TestAccessLevel(t *testing.T) {
 	assert.NoError(t, PrepareTestDatabase())