go1.20 support (#3414)

.github/workflows/post-release.yml

@@ -18,7 +18,7 @@ jobs:
           # ex:
           # - 1.18beta1 -> 1.18.0-beta.1
           # - 1.18rc1 -> 1.18.0-rc.1
-          go-version: 1.19
+          go-version: '1.20'
 
       - name: Update GitHub action config
         run: make assets/github-action-config.json

.github/workflows/pr-extra.yml

@@ -17,7 +17,7 @@ jobs:
           # ex:
           # - 1.18beta1 -> 1.18.0-beta.1
           # - 1.18rc1 -> 1.18.0-rc.1
-          go-version: 1.19
+          go-version: '1.20'
       - name: Run go list
         run: go list -json -m all > go.list
       - name: Nancy

.github/workflows/pr.yml

@@ -6,7 +6,7 @@ on:
   pull_request:
 
 env:
-  GO_VERSION: 1.19
+  GO_VERSION: '1.20'
 
 jobs:
   # Check if there is any dirty change for go mod tidy
@@ -41,7 +41,9 @@ jobs:
           # ex:
           # - 1.18beta1 -> 1.18.0-beta.1
           # - 1.18rc1 -> 1.18.0-rc.1
-          go-version: ${{ env.GO_VERSION }}
+          # TODO(ldez) must be changed after the first release of golangci-lint with go1.20
+          # go-version: ${{ env.GO_VERSION }}
+          go-version: 1.19
       - name: lint
         uses: golangci/golangci-lint-action@v3.4.0
         with:
@@ -88,8 +90,8 @@ jobs:
     strategy:
       matrix:
         golang:
-          - 1.18
           - 1.19
+          - '1.20'
     steps:
       - uses: actions/checkout@v3
       - name: Install Go

.github/workflows/tag.yml

@@ -18,7 +18,7 @@ jobs:
           # ex:
           # - 1.18beta1 -> 1.18.0-beta.1
           # - 1.18rc1 -> 1.18.0-rc.1
-          go-version: 1.19
+          go-version: '1.20'
       - name: Unshallow
         run: git fetch --prune --unshallow
 
@@ -48,7 +48,7 @@ jobs:
           # ex:
           # - 1.18beta1 -> 1.18.0-beta.1
           # - 1.18rc1 -> 1.18.0-rc.1
-          go-version: 1.19
+          go-version: '1.20'
 
       - name: Unshallow
         run: git fetch --prune --unshallow

build/Dockerfile

@@ -1,5 +1,5 @@
 # stage 1 building the code
-FROM golang:1.19 as builder
+FROM golang:1.20 as builder
 
 ARG VERSION
 ARG SHORT_COMMIT
@@ -10,7 +10,7 @@ WORKDIR /golangci
 RUN CGO_ENABLED=0 go build -trimpath -ldflags "-s -w -X main.version=$VERSION -X main.commit=$SHORT_COMMIT -X main.date=$DATE" -o golangci-lint ./cmd/golangci-lint/main.go
 
 # stage 2
-FROM golang:1.19
+FROM golang:1.20
 # related to https://github.com/golangci/golangci-lint/issues/3107
 ENV GOROOT /usr/local/go
 # don't place it into $GOPATH/bin because Drone mounts $GOPATH as volume

build/alpine.Dockerfile

@@ -1,5 +1,5 @@
 # stage 1 building the code
-FROM golang:1.19-alpine as builder
+FROM golang:1.20-alpine as builder
 
 ARG VERSION
 ARG SHORT_COMMIT
@@ -15,7 +15,7 @@ RUN apk --no-cache add gcc musl-dev git mercurial
 RUN CGO_ENABLED=0 go build -trimpath -ldflags "-s -w -X main.version=$VERSION -X main.commit=$SHORT_COMMIT -X main.date=$DATE" -o golangci-lint ./cmd/golangci-lint/main.go
 
 # stage 2
-FROM golang:1.19-alpine
+FROM golang:1.20-alpine
 # related to https://github.com/golangci/golangci-lint/issues/3107
 ENV GOROOT /usr/local/go
 # gcc is required to support cgo;

go.mod

@@ -39,7 +39,7 @@ require (
 	github.com/golangci/gofmt v0.0.0-20220901101216-f2edd75033f2
 	github.com/golangci/lint-1 v0.0.0-20191013205115-297bf364a8e0
 	github.com/golangci/maligned v0.0.0-20180506175553-b1d89398deca
-	github.com/golangci/misspell v0.3.5
+	github.com/golangci/misspell v0.4.0
 	github.com/golangci/revgrep v0.0.0-20220804021717-745bb2f7c2e6
 	github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4
 	github.com/gordonklaus/ineffassign v0.0.0-20210914165742-4cc7213b9bc8
@@ -112,7 +112,7 @@ require (
 	gitlab.com/bosi/decorder v0.2.3
 	golang.org/x/tools v0.5.0
 	gopkg.in/yaml.v3 v3.0.1
-	honnef.co/go/tools v0.3.3
+	honnef.co/go/tools v0.4.0-0.dev.0.20221209223220-58c4d7e4b720
 	mvdan.cc/gofumpt v0.4.0
 	mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed
 	mvdan.cc/unparam v0.0.0-20221223090309-7455f1af531d
@@ -179,7 +179,7 @@ require (
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.17.0 // indirect
 	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
-	golang.org/x/exp/typeparams v0.0.0-20220827204233-334a2380cb91 // indirect
+	golang.org/x/exp/typeparams v0.0.0-20221208152030-732eee02a75a // indirect
 	golang.org/x/mod v0.7.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
 	golang.org/x/sys v0.4.0 // indirect

pkg/golinters/goanalysis/runner_loadingpackage.go

@@ -434,6 +434,7 @@ func (lp *loadingPackage) convertError(err error) []packages.Error {
 		// If you see this error message, please file a bug.
 		lp.log.Warnf("Internal error: error %q (%T) without position", err, err)
 	}
+
 	return errs
 }
 

pkg/golinters/gofmt_common.go

@@ -242,7 +242,7 @@ func extractIssuesFromPatch(patch string, lintCtx *linter.Context, linterName st
 	}
 
 	if len(diffs) == 0 {
-		return nil, fmt.Errorf("got no diffs from patch parser: %v", diffs)
+		return nil, fmt.Errorf("got no diffs from patch parser: %v", patch)
 	}
 
 	var issues []result.Issue

pkg/lint/lintersdb/manager.go

@@ -453,8 +453,7 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 
 		linter.NewConfig(golinters.NewGochecknoinits()).
 			WithSince("v1.12.0").
-			WithPresets(linter.PresetStyle).
-			WithURL("https://github.com/leighmcculloch/gochecknoinits"),
+			WithPresets(linter.PresetStyle),
 
 		linter.NewConfig(golinters.NewGocognit(gocognitCfg)).
 			WithSince("v1.20.0").

pkg/lint/load.go

@@ -160,7 +160,17 @@ func (cl *ContextLoader) debugPrintLoadedPackages(pkgs []*packages.Package) {
 
 func (cl *ContextLoader) parseLoadedPackagesErrors(pkgs []*packages.Package) error {
 	for _, pkg := range pkgs {
+		var errs []packages.Error
 		for _, err := range pkg.Errors {
+			// quick fix: skip error related to `go list` invocation by packages.Load()
+			// The behavior has been changed between go1.19 and go1.20, the error is now inside the JSON content.
+			// https://github.com/golangci/golangci-lint/pull/3414#issuecomment-1364756303
+			if strings.Contains(err.Msg, "# command-line-arguments") {
+				continue
+			}
+
+			errs = append(errs, err)
+
 			if strings.Contains(err.Msg, "no Go files") {
 				return errors.Wrapf(exitcodes.ErrNoGoFiles, "package %s", pkg.PkgPath)
 			}
@@ -169,6 +179,8 @@ func (cl *ContextLoader) parseLoadedPackagesErrors(pkgs []*packages.Package) err
 				return errors.Wrap(exitcodes.ErrFailure, err.Msg)
 			}
 		}
+
+		pkg.Errors = errs
 	}
 
 	return nil

pkg/lint/runner.go

@@ -208,6 +208,7 @@ func (r Runner) Run(ctx context.Context, linters []*linter.Config, lintCtx *lint
 
 				return
 			}
+
 			issues = append(issues, linterIssues...)
 		})
 	}

test/testdata/notcompiles/typecheck_many_issues.go

@@ -1,9 +1,11 @@
+//go:build go1.20
+
 //golangcitest:args -Etypecheck
 package testdata
 
 func TypeCheckBadCalls() {
-	typecheckNotExists1.F1() // want "undeclared name: `typecheckNotExists1`"
-	typecheckNotExists2.F2() // want "undeclared name: `typecheckNotExists2`"
-	typecheckNotExists3.F3() // want "undeclared name: `typecheckNotExists3`"
-	typecheckNotExists4.F4() // want "undeclared name: `typecheckNotExists4`"
+	typecheckNotExists1.F1() // want "undefined: typecheckNotExists1"
+	typecheckNotExists2.F2() // want "undefined: typecheckNotExists2"
+	typecheckNotExists3.F3() // want "undefined: typecheckNotExists3"
+	typecheckNotExists4.F4() // want "undefined: typecheckNotExists4"
 }