goanalysis_metalinter: SA9002: runtime error: index out of range [2] with length 1

[Juneezee]

Thank you for creating the issue!

• Yes, I'm using a binary release within 2 latest major releases. Only such installations are supported.
• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've included all information below (version, config, etc).

Please include the following information:

Version of golangci-lint

$ golangci-lint --version
golangci-lint has version 1.36.0 built from 6c25d06 on 2021-01-26T13:14:05Z

Config file

$ cat .golangci.yml
cat: .golangci.yml: No such file or directory

Go environment

$ go version && go env
go version go1.15.8 linux/amd64
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jun/.cache/go-build"
GOENV="/home/jun/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/jun/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/jun/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/jun/Desktop/log/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build684445965=/tmp/go-build -gno-record-gcc-switches"

Verbose output of running

$ golangci-lint cache clean
$ golangci-lint run -v
INFO [config_reader] Config search paths: [./ /home/jun/Desktop/log /home/jun/Desktop /home/jun /home /] 
INFO [lintersdb] Active 10 linters: [deadcode errcheck gosimple govet ineffassign staticcheck structcheck typecheck unused varcheck] 
INFO [loader] Go packages loading at mode 575 (name|compiled_files|exports_file|files|imports|deps|types_sizes) took 169.662991ms 
INFO [runner/filename_unadjuster] Pre-built 0 adjustments in 18.217401ms 
INFO [linters context/goanalysis] analyzers took 2.471184931s with top 10 stages: buildir: 1.59844417s, fact_purity: 87.463008ms, inspect: 76.516578ms, ctrlflow: 75.431944ms, printf: 74.303308ms, fact_deprecated: 45.799404ms, ineffassign: 37.402104ms, S1038: 25.86167ms, S1019: 16.784328ms, bools: 16.056652ms 
WARN [linters context] Panic: SA9002: package "log" (isInitialPkg: true, needAnalyzeSource: true): runtime error: index out of range [2] with length 1: goroutine 826 [running]:
runtime/debug.Stack(0xf548ce, 0x3c, 0xc0037768d0)
	/opt/hostedtoolcache/go/1.15.6/x64/src/runtime/debug/stack.go:24 +0x9f
github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe.func1(0xc001039ad0)
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:508 +0x1be
panic(0xe3fe80, 0xc0033fc5a0)
	/opt/hostedtoolcache/go/1.15.6/x64/src/runtime/panic.go:969 +0x1b9
honnef.co/go/tools/staticcheck.CheckNonOctalFileMode.func1(0x105e760, 0xc005b760c0)
	/home/runner/go/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.6/staticcheck/lint.go:2815 +0x77c
golang.org/x/tools/go/ast/inspector.(*Inspector).Preorder(0xc000cbc660, 0xc001045538, 0x1, 0x1, 0xc0010f7d48)
	/home/runner/go/pkg/mod/golang.org/x/tools@v0.0.0-20210105210202-9ed45478a130/go/ast/inspector/inspector.go:77 +0xa2
honnef.co/go/tools/code.Preorder(...)
	/home/runner/go/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.6/code/code.go:481
honnef.co/go/tools/staticcheck.CheckNonOctalFileMode(0xc005dd88f0, 0x95de16a0, 0x16b0b60, 0xc009672a78, 0x2)
	/home/runner/go/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.6/staticcheck/lint.go:2834 +0xcc
github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyze(0xc001039ad0)
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:590 +0xa83
github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe.func2()
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:512 +0x2a
github.com/golangci/golangci-lint/pkg/timeutils.(*Stopwatch).TrackStage(0xc0011d0140, 0xea714d, 0x6, 0xc001045770)
	/home/runner/work/golangci-lint/golangci-lint/pkg/timeutils/stopwatch.go:111 +0x50
github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe(0xc001039ad0)
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:511 +0x91
github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*loadingPackage).analyze.func2(0xc00b307960, 0xc001039ad0)
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:1059 +0x65
created by github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*loadingPackage).analyze
	/home/runner/work/golangci-lint/golangci-lint/pkg/golinters/goanalysis/runner.go:1054 +0x305 
WARN [runner] Can't run linter goanalysis_metalinter: goanalysis_metalinter: SA9002: package "log" (isInitialPkg: true, needAnalyzeSource: true): runtime error: index out of range [2] with length 1 
INFO [linters context/goanalysis] analyzers took 163.34508ms with top 10 stages: buildir: 101.323504ms, U1000: 62.021576ms 
INFO [runner] processing took 36.739µs with stages: max_same_issues: 2.934µs, autogenerated_exclude: 2.375µs, nolint: 2.374µs, exclude-rules: 1.956µs, skip_files: 1.956µs, severity-rules: 1.956µs, sort_results: 1.956µs, cgo: 1.886µs, path_prettifier: 1.886µs, max_per_file_from_linter: 1.886µs, path_prefixer: 1.886µs, filename_unadjuster: 1.886µs, path_shortener: 1.885µs, skip_dirs: 1.816µs, max_from_linter: 1.467µs, diff: 1.466µs, identifier_marker: 1.397µs, exclude: 1.397µs, source_code: 1.397µs, uniq_by_line: 977ns 
INFO [runner] linters took 2.537529046s with stages: goanalysis_metalinter: 2.318229714s, unused: 218.999923ms 
ERRO Running error: goanalysis_metalinter: SA9002: package "log" (isInitialPkg: true, needAnalyzeSource: true): runtime error: index out of range [2] with length 1 
INFO Memory: 29 samples, avg is 182.9MB, max is 275.7MB 
INFO Execution took 2.735348132s

I'm trying to add golangci-lint to the open-source Go project phuslu/log but the linter returns a runtime error.

The author of the project @phuslu was trying to run golangci-lint on GitHub Actions and the job failed as well, as shown by the job logs here.

[boring-cyborg]

Hey, thank you for opening your first Issue ! 🙂 If you would like to contribute we have a guide for contributors.

[ldez]

Hello,

It's an issue with https://github.com/dominikh/go-tools, you can open an issue in the repo.

The issue is related to the rule SA9002

$ staticcheck --checks="SA9002" .
panic: runtime error: index out of range [2] with length 1

goroutine 360 [running]:
honnef.co/go/tools/staticcheck.CheckNonOctalFileMode.func1(0x9df540, 0xc0020e7180)
        /home/ldez/sources/go/src/honnef.co/go/tools/staticcheck/lint.go:2928 +0x7b5
golang.org/x/tools/go/ast/inspector.(*Inspector).Preorder(0xc000ba2500, 0xc000318dd8, 0x1, 0x1, 0xc000064de8)
        /home/ldez/sources/go/pkg/mod/golang.org/x/tools@v0.1.0/go/ast/inspector/inspector.go:77 +0xa2
honnef.co/go/tools/analysis/code.Preorder(...)
        /home/ldez/sources/go/src/honnef.co/go/tools/analysis/code/visit.go:16
honnef.co/go/tools/staticcheck.CheckNonOctalFileMode(0xc001658f70, 0x20996c8c, 0xc4b100, 0xc001658ee8, 0x0)
        /home/ldez/sources/go/src/honnef.co/go/tools/staticcheck/lint.go:2947 +0xcc
honnef.co/go/tools/lintcmd/runner.(*analyzerRunner).do(0xc001a7aa50, 0x9ea7e0, 0xc0004e5400, 0x0, 0x0)
        /home/ldez/sources/go/src/honnef.co/go/tools/lintcmd/runner/runner.go:938 +0x61e
honnef.co/go/tools/lintcmd/runner.genericHandle(0x9ea7e0, 0xc0004e5400, 0x9ea7e0, 0xc0004d8000, 0xc000c6b4a0, 0xc0002ca0b8, 0xc000d17120)
        /home/ldez/sources/go/src/honnef.co/go/tools/lintcmd/runner/runner.go:763 +0x18b
created by honnef.co/go/tools/lintcmd/runner.(*subrunner).runAnalyzers
        /home/ldez/sources/go/src/honnef.co/go/tools/lintcmd/runner/runner.go:1004 +0x5ca

As a workaround, you can do that:

diff --git i/file.go w/file.go
index fe01944..d147db4 100644
--- i/file.go
+++ w/file.go
@@ -152,7 +152,8 @@ func (w *FileWriter) Rotate() (err error) {
 
 func (w *FileWriter) rotate() (err error) {
        var file *os.File
-       file, err = os.OpenFile(w.fileargs(timeNow()))
+       args, flag, perm := w.fileargs(timeNow())
+       file, err = os.OpenFile(args, flag, perm)
        if err != nil {
                return err
        }
@@ -216,7 +217,8 @@ func (w *FileWriter) rotate() (err error) {
 }
 
 func (w *FileWriter) create() (err error) {
-       w.file, err = os.OpenFile(w.fileargs(timeNow()))
+       args, flag, perm := w.fileargs(timeNow())
+       w.file, err = os.OpenFile(args, flag, perm)
        if err != nil {
                return err
        }