User should be notified that enabled linter failed/panicked

[DarkEye123]

During regular run a message saying "Congrats! No issues were found." is visible.
It should contain some warning about failing linter and possible a hint to use verbose option as well.

See example:

swicus PI-1215-migration_endpoint ✗ 2h44m ▲ ◒ ➜ golangci-lint run -v                                         
INFO[0000] Config search paths: [./ /Users/matej.lesko/go/src/github.com/solarwindscloud/swicus /Users/matej.lesko/go/src/github.com/solarwindscloud /Users/matej.lesko/go/src/github.com /Users/matej.lesko/go/src /Users/matej.lesko/go /Users/matej.lesko /Users /] 
INFO[0000] Used config file .golangci.yml               
INFO[0000] Active 17 linters: [deadcode dupl errcheck gas goconst gocyclo gofmt golint govet ineffassign interfacer maligned megacheck structcheck typecheck unconvert varcheck] 
INFO[0000] set GOROOT="/usr/local/opt/go@1.10/libexec/" 
INFO[0000] Found paths for analysis for 1.727533ms: [./authserver ./cmd/swicus ./db ./db/migrate ./hash ./metrics ./notifier ./snowflake ./types ./types/ctxkey ./types/scope ./types/swerr ./userservice ./valid ./valid/commitlog ./valid/commitlog/static ./valid/gen] 
INFO[0002] Program loading took 2.875186597s            
INFO[0003] SSA repr building took 761.966211ms          
INFO[0004] worker.2 took 392.970712ms with stages: govet: 259.126903ms, gofmt: 83.370094ms, ineffassign: 34.453291ms, structcheck: 5.70993ms, errcheck: 5.549982ms, deadcode: 4.732017ms, typecheck: 514ns 
INFO[0004] worker.3 took 389.2041ms with stages: interfacer: 147.331055ms, dupl: 129.455256ms, gas: 71.787171ms, goconst: 23.963243ms, varcheck: 9.152789ms, unconvert: 2.921552ms, gocyclo: 2.422537ms, maligned: 2.133665ms 
INFO[0004] worker.4 took 457.37095ms with stages: golint: 457.349992ms 
INFO[0004] Panic stack trace: goroutine 1564 [running]:
runtime/debug.Stack(0x17e2b38, 0x11, 0xc4443366f0)
	/usr/local/opt/go@1.10/libexec/src/runtime/debug/stack.go:24 +0xa7
github.com/golangci/golangci-lint/pkg/lint.runLinterSafe.func1(0xc444337c30)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:34 +0xc2
panic(0x16e4ba0, 0xc44f19f1a0)
	/usr/local/opt/go@1.10/libexec/src/runtime/panic.go:502 +0x229
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint.(*Linter).Lint(0xc444337470, 0xc4201a8640, 0xc420162580, 0xc441cd1040, 0x174e440, 0x1c265e0, 0xc420427490)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lint.go:446 +0x2e7c
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil.(*runner).lint(0xc4204275a8, 0xc4201a8640, 0xc420162580, 0xc441cd1040, 0x0, 0x0, 0x0)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil/util.go:292 +0xc8
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil.Lint(0xc44e37f3c0, 0x3, 0x4, 0xc4201a8640, 0xc420162580, 0xc441cd1040, 0xc444337710, 0x4, 0xc4204276e8, 0x1012329, ...)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil/util.go:248 +0x1f5
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil.ProcessFlagSet(0xc44fa88ba0, 0x3, 0x4, 0xc44fa88b40, 0xc4201a8640, 0xc420162580, 0xc441cd1040, 0x4, 0x1, 0xc4200608b8)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lintutil/util.go:203 +0x615
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/cmd/megacheck.Run(0xc4201a8640, 0xc420162580, 0xc441cd1040, 0x10101, 0x0, 0x1, 0xc420060970)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/cmd/megacheck/megacheck.go:124 +0x74a
github.com/golangci/golangci-lint/pkg/golinters.Megacheck.Run(0x10101, 0x1898420, 0xc4200d51a0, 0xc44fa19720, 0x102ac39, 0x8, 0xc432277140, 0x0, 0xc420060a80)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/golinters/megacheck.go:54 +0x7d
github.com/golangci/golangci-lint/pkg/lint.runLinterSafe(0x1898420, 0xc4200d51a0, 0xc44fa19720, 0x18976a0, 0xc420c7c010, 0x10100, 0xc4200fe480, 0x3, 0x3, 0x1, ...)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:38 +0xbf
github.com/golangci/golangci-lint/pkg/lint.runWorker.func1()
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:70 +0x8b
github.com/golangci/golangci-lint/pkg/timeutils.(*Stopwatch).TrackStage(0xc44fa99b80, 0x17d0872, 0x9, 0xc420060e28)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/timeutils/stopwatch.go:73 +0x53
github.com/golangci/golangci-lint/pkg/lint.runWorker(0x1898420, 0xc4200d51a0, 0xc44fa19720, 0xc44fa88960, 0xc44fa889c0, 0xc44f52ab70, 0x8)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:69 +0x19e
github.com/golangci/golangci-lint/pkg/lint.(*SimpleRunner).runWorkers.func1(0xc44f52ab60, 0x1898420, 0xc4200d51a0, 0xc44fa19720, 0xc44fa88960, 0xc44fa889c0, 0xc44fa88a20, 0x4, 0x4, 0x0)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:124 +0x117
created by github.com/golangci/golangci-lint/pkg/lint.(*SimpleRunner).runWorkers
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/pkg/lint/runner.go:121 +0x1a5
 
INFO[0004] worker.1 took 1.243648816s with stages: megacheck: 1.243617692s 
INFO[0004] Can't run linter megacheck: panic occured: panic: runtime error: invalid memory address or nil pointer dereference, stack: goroutine 1846 [running]:
runtime/debug.Stack(0xc44aabef28, 0x16f8460, 0x1ca1fc0)
	/usr/local/opt/go@1.10/libexec/src/runtime/debug/stack.go:24 +0xa7
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint.(*Linter).Lint.func1.1(0xc44fa80720, 0x13)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lint.go:427 +0x6e
panic(0x16f8460, 0x1ca1fc0)
	/usr/local/opt/go@1.10/libexec/src/runtime/panic.go:502 +0x229
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck.(*Checker).CheckDeprecated.func1(0x1893060, 0xc42007cb20, 0xc44cdfc3a0)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck/lint.go:2376 +0x145
go/ast.inspector.Visit(0xc44cdfc3a0, 0x1893060, 0xc42007cb20, 0x1010398, 0x173e280)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:373 +0x3a
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1893060, 0xc42007cb20)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:52 +0x66
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1892aa0, 0xc42007e680)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:74 +0xb97
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1892ae0, 0xc42043c570)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:84 +0x144
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1893160, 0xc42007d600)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:161 +0x27bf
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1893220, 0xc42043c540)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:318 +0x2aec
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1892c60, 0xc42007ec80)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:331 +0xf2f
go/ast.walkDeclList(0x1890740, 0xc44cdfc3a0, 0xc4210e4800, 0x64, 0x80)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:38 +0x81
go/ast.Walk(0x1890740, 0xc44cdfc3a0, 0x1892b20, 0xc420127d80)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:353 +0x2650
go/ast.Inspect(0x1892b20, 0xc420127d80, 0xc44cdfc3a0)
	/usr/local/opt/go@1.10/libexec/src/go/ast/walk.go:385 +0x4b
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck.(*Checker).CheckDeprecated(0xc44e38d380, 0xc44e35b540)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck/lint.go:2406 +0xa5
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck.(*Checker).CheckDeprecated-fm(0xc44e35b540)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/staticcheck/lint.go:235 +0x34
github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint.(*Linter).Lint.func1(0xc44fa80720, 0xc42d9dc940, 0xc44fa80690, 0x13, 0xc44e35b540)
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lint.go:436 +0xc7
created by github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint.(*Linter).Lint
	/Users/matej.lesko/go/src/github.com/golangci/golangci-lint/vendor/github.com/golangci/go-tools/lint/lint.go:424 +0x25a0
 
INFO[0004] Workers idle times: #2: 849.247497ms, #3: 841.003268ms, #4: 785.946032ms 
INFO[0004] processing took 33.331417ms with stages: exclude: 25.154019ms, nolint: 7.6918ms, path_prettifier: 406.631µs, cgo: 71.489µs, uniq_by_line: 1.827µs, max_from_linter: 1.363µs, max_same_issues: 1.361µs, diff: 1.168µs, skip_files: 901ns, max_per_file_from_linter: 858ns 
Congrats! No issues were found.
INFO[0004] Extracting issued lines took 0s              
INFO[0004] Memory: 39 samples, avg is 519.6MB, max is 1024.8MB 
INFO[0004] Execution took 4.883715971s                

[jirfag]

Thank you, it's a right point. I am planning to do it after fixing all known linters crashes. Last known crash (the same in your log) was fixed in master yesterday. I think after a few days I enable warn logging of all errors

[jirfag]

fixed in #101

[rfay]

Hmm, I still see this in golangci-lint v1.10.2, which was released Sept 2, 2018, which is long after this #101 was merged.

WARN [runner/staticcheck] Can't run megacheck because of compilation errors in packages [github.com/drud/ddev/cmd/ddev/cmd_test]: cmd/ddev/cmd/auth-ssh_test.go:49: cannot convert "web" (untyped string constant) to *github.com/drud/ddev/pkg/ddevapp.ExecOpts and 15 more errors: run golangci-lint run --no-config --disable-all -E typecheck` to see all errors``

Basically, a compile error in test code is flagged but does not result in an error. If you think this is a different error, I'll be happy to open a new issue, but it's a super serious error because I've been counting on golangci-lint to fail on that kind of problem (gometalinter certainly does, we just gradually switched)

Edit: And I will test with 1.11.3 and see if the behavior has been fixed since 1.10.2.

[rfay]

Yes, this is broken in 1.11.3, and easy to demonstrate.

• mkdir junk
• Place this file file in the junk directory: https://gist.github.com/rfay/36d05e93d4ec41340eac8ab998d091c0#file-auth-ssh_test-go
• golangci-lint run --out-format=line-number --disable-all --enable=gofmt --enable=govet --enable=errcheck --enable=staticcheck --enable=ineffassign --enable=varcheck --enable=deadcode ./junk/...
• Result is just a warning, with a zero result from the run: WARN [runner/staticcheck] Can't run megacheck because of compilation errors in packages [github.com/drud/junk.test]: -: junk/auth-ssh_test.go:15:2: cannot find package "github.com/stretchr/testify/assert" in any of: /usr/local/Cellar/go/1.11.2/libexec/src/github.com/stretchr/testify/assert (from $GOROOT) /Users/rfay/go/src/github.com/stretchr/testify/assert (from $GOPATH)

I'll open a new issue. (Opened #276)

[jirfag]

thank you