chore: update linter

.github/workflows/main.yml

@@ -7,8 +7,8 @@ on:
   pull_request:
 
 env:
-  GO_VERSION: 1.19
-  GOLANGCI_LINT_VERSION: v1.47.1
+  GO_VERSION: '1.20'
+  GOLANGCI_LINT_VERSION: v1.53.3
 
 jobs:
 

.golangci.yml

@@ -0,0 +1,165 @@
+run:
+  timeout: 10m
+  skip-files: []
+
+linters-settings:
+  govet:
+    check-shadowing: false
+  gocyclo:
+    min-complexity: 12
+  maligned:
+    suggest-new: true
+  goconst:
+    min-len: 3
+    min-occurrences: 3
+  funlen:
+    lines: -1
+    statements: 50
+  misspell:
+    locale: US
+  depguard:
+    rules:
+      main:
+        files:
+          - $all
+        allow:
+          - $gostd
+          - github.com/traefik/yaegi
+  tagalign:
+    align: false
+    order:
+      - xml
+      - json
+      - yaml
+      - yml
+      - toml
+      - mapstructure
+      - url
+  godox:
+    keywords:
+      - FIXME
+  gocritic:
+    enabled-tags:
+      - diagnostic
+      - style
+      - performance
+    disabled-checks:
+      - paramTypeCombine # already handle by gofumpt.extra-rules
+      - whyNoLint # already handle by nonolint
+      - unnamedResult
+      - hugeParam
+      - sloppyReassign
+      - rangeValCopy
+      - octalLiteral
+      - ptrToRefParam
+      - appendAssign
+      - ruleguard
+      - httpNoBody
+      - exposedSyncMutex
+      - importShadow # TODO should be fixed
+      - commentedOutCode # TODO should be fixed
+  revive:
+    rules:
+      - name: struct-tag
+      - name: blank-imports
+      - name: context-as-argument
+      - name: context-keys-type
+      - name: dot-imports
+      - name: error-return
+      - name: error-strings
+      - name: error-naming
+      - name: exported
+        disabled: true
+      - name: if-return
+      - name: increment-decrement
+      - name: var-naming
+      - name: var-declaration
+      - name: package-comments
+        disabled: true
+      - name: range
+      - name: receiver-naming
+      - name: time-naming
+      - name: unexported-return
+      - name: indent-error-flow
+      - name: errorf
+      - name: empty-block
+      - name: superfluous-else
+      - name: unused-parameter
+        disabled: true
+      - name: unreachable-code
+      - name: redefines-builtin-id
+
+linters:
+  enable-all: true
+  disable:
+    - deadcode # deprecated
+    - exhaustivestruct # deprecated
+    - golint # deprecated
+    - ifshort # deprecated
+    - interfacer # deprecated
+    - maligned # deprecated
+    - nosnakecase # deprecated
+    - scopelint # deprecated
+    - structcheck # deprecated
+    - varcheck # deprecated
+    - cyclop # duplicate of gocyclo
+    - sqlclosecheck # not relevant (SQL)
+    - rowserrcheck # not relevant (SQL)
+    - execinquery # not relevant (SQL)
+    - lll
+    - gas
+    - dupl
+    - prealloc
+    - gocyclo
+    - cyclop
+    - gochecknoinits
+    - gochecknoglobals
+    - wsl
+    - nlreturn
+    - godox
+    - funlen
+    - gocognit
+    - stylecheck
+    - gomnd
+    - testpackage
+    - paralleltest
+    - tparallel
+    - goerr113
+    - wrapcheck
+    - nestif
+    - exhaustive
+    - exhaustruct
+    - forbidigo
+    - ifshort
+    - forcetypeassert
+    - varnamelen
+    - nosnakecase
+    - nonamedreturns
+    - nilnil
+    - maintidx
+    - dupword # false positives
+    - errorlint # TODO: must be reactivate after fixes
+
+issues:
+  exclude-use-default: false
+  max-per-linter: 0
+  max-same-issues: 0
+  exclude: []
+  exclude-rules:
+    - path: .+_test\.go
+      linters:
+        - goconst
+    - path: .+_test\.go
+      text: 'var-declaration:'
+    - path: interp/interp.go
+      text: '`in` can be `io.Reader`'
+    - path: interp/interp.go
+      text: '`out` can be `io.Writer`'
+    - path: interp/interp.go
+      text: '`Panic` should conform to the `XxxError` format'
+    - path: interp/interp_eval_test.go
+      linters:
+        - thelper
+    - path: interp/debugger.go
+      linters:
+        - containedctx

example/pkg/pkg_test.go

@@ -128,7 +128,7 @@ func TestPackages(t *testing.T) {
 				if test.topImport != "" {
 					topImport = test.topImport
 				}
-				if _, err = i.Eval(fmt.Sprintf(`import "%s"`, topImport)); err != nil {
+				if _, err = i.Eval(fmt.Sprintf(`import %q`, topImport)); err != nil {
 					t.Fatal(err)
 				}
 				value, err := i.Eval(`pkg.NewSample()`)

extract/extract.go

@@ -130,6 +130,15 @@ func matchList(name string, list []string) (match bool, err error) {
 	return
 }
 
+// Extractor creates a package with all the symbols from a dependency package.
+type Extractor struct {
+	Dest    string   // The name of the created package.
+	License string   // License text to be included in the created package, optional.
+	Exclude []string // Comma separated list of regexp matching symbols to exclude.
+	Include []string // Comma separated list of regexp matching symbols to include.
+	Tag     []string // Comma separated of build tags to be added to the created package.
+}
+
 func (e *Extractor) genContent(importPath string, p *types.Package) ([]byte, error) {
 	prefix := "_" + importPath + "_"
 	prefix = strings.NewReplacer("/", "_", "-", "_", ".", "_", "~", "_").Replace(prefix)
@@ -283,11 +292,11 @@ func (e *Extractor) genContent(importPath string, p *types.Package) ([]byte, err
 	}
 
 	for _, t := range e.Tag {
-		if len(t) != 0 {
+		if t != "" {
 			buildTags += "," + t
 		}
 	}
-	if len(buildTags) != 0 && buildTags[0] == ',' {
+	if buildTags != "" && buildTags[0] == ',' {
 		buildTags = buildTags[1:]
 	}
 
@@ -340,7 +349,7 @@ func fixConst(name string, val constant.Value, imports map[string]bool) string {
 		str = f.Text('g', int(f.Prec()))
 	case constant.Complex:
 		// TODO: not sure how to parse this case
-		fallthrough
+		fallthrough //nolint:gocritic // Empty Fallthrough is expected.
 	default:
 		return name
 	}
@@ -351,15 +360,6 @@ func fixConst(name string, val constant.Value, imports map[string]bool) string {
 	return fmt.Sprintf("constant.MakeFromLiteral(%q, token.%s, 0)", str, tok)
 }
 
-// Extractor creates a package with all the symbols from a dependency package.
-type Extractor struct {
-	Dest    string   // The name of the created package.
-	License string   // License text to be included in the created package, optional.
-	Exclude []string // Comma separated list of regexp matching symbols to exclude.
-	Include []string // Comma separated list of regexp matching symbols to include.
-	Tag     []string // Comma separated of build tags to be added to the created package.
-}
-
 // importPath checks whether pkgIdent is an existing directory relative to
 // e.WorkingDir. If yes, it returns the actual import path of the Go package
 // located in the directory. If it is definitely a relative path, but it does not

go.mod

@@ -1,3 +1,3 @@
 module github.com/traefik/yaegi
 
-go 1.18
+go 1.19

interp/interp.go

@@ -184,14 +184,14 @@ type opt struct {
 	noRun        bool              // compile, but do not run
 	fastChan     bool              // disable cancellable chan operations
 	specialStdio bool              // allows os.Stdin, os.Stdout, os.Stderr to not be file descriptors
-	unrestricted bool              // allow use of non sandboxed symbols
+	unrestricted bool              // allow use of non-sandboxed symbols
 }
 
 // Interpreter contains global resources and state.
 type Interpreter struct {
-	// id is an atomic counter counter used for run cancellation,
+	// id is an atomic counter used for run cancellation,
 	// only accessed via runid/stop
-	// Located at start of struct to ensure proper alignment on 32 bit
+	// Located at start of struct to ensure proper alignment on 32-bit
 	// architectures.
 	id uint64
 

interp/interp_consistent_test.go

@@ -1,6 +1,7 @@
 package interp_test
 
 import (
+	"bytes"
 	"go/build"
 	"io"
 	"os"
@@ -176,7 +177,7 @@ func TestInterpConsistencyBuild(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			if string(outInterp) != string(outRun) {
+			if !bytes.Equal(outInterp, outRun) {
 				t.Errorf("\nGot: %q,\n want: %q", string(outInterp), string(outRun))
 			}
 		})
@@ -288,8 +289,8 @@ func TestInterpErrorConsistency(t *testing.T) {
 
 	for _, test := range testCases {
 		t.Run(test.fileName, func(t *testing.T) {
-			if len(test.expectedInterp) == 0 && len(test.expectedExec) == 0 {
-				t.Fatal("at least expectedInterp must be define")
+			if test.expectedInterp == "" && test.expectedExec == "" {
+				t.Fatal("at least expectedInterp must be defined")
 			}
 
 			filePath := filepath.Join("..", "_test", test.fileName)
@@ -315,7 +316,7 @@ func TestInterpErrorConsistency(t *testing.T) {
 				t.Fatal("An error is expected but got none.")
 			}
 
-			if len(test.expectedExec) == 0 && !strings.Contains(string(outRun), test.expectedInterp) {
+			if test.expectedExec == "" && !strings.Contains(string(outRun), test.expectedInterp) {
 				t.Errorf("got %q, want: %q", string(outRun), test.expectedInterp)
 			} else if !strings.Contains(string(outRun), test.expectedExec) {
 				t.Errorf("got %q, want: %q", string(outRun), test.expectedExec)