--fast panics

[dallbee]

First of all, awesome project. The pretty-printed output is very helpful, and I'm definitely seeing performance improvements over gometalinter.

I encountered some problems while trying this tool out. It works fine when run with --enable-all, but panics when passed --fast, as well as some combinations involving --disable-all.

Version Info

Go version 1.10
golangci-lint version:

$ golangci-lint --version
golangci-lint has version master built from ? on

Not sure what that output means to you...

$ cd $GOPATH/src/github.com/golangci/golangci-lint/
$ git rev-parse HEAD
0eb6aa7c59aab27a316af0b18acd023faf814c72

Which appears to be the latest master version as of this moment.

Stack Traces

$ golangci-lint run --fast
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0xa41543]

goroutine 1 [running]:
github.com/golangci/golangci-lint/pkg/commands.separateNotCompilingPackages(0xc420186a00)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:199 +0x43
github.com/golangci/golangci-lint/pkg/commands.buildLintCtx(0xc8e360, 0xc42009ac60, 0xc420114e80, 0x8, 0x8, 0xc42013b1e0, 0xc4204b5a40, 0x49aeff, 0xbc7742)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:264 +0x39a
github.com/golangci/golangci-lint/pkg/commands.(*Executor).runAnalysis(0xc42011eb90, 0xc8e360, 0xc42009ac60, 0xc420495b70, 0x0, 0x1, 0x0, 0x0, 0x0)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:277 +0xf3
github.com/golangci/golangci-lint/pkg/commands.(*Executor).runAndPrint(0xc42011eb90, 0xc8e360, 0xc42009ac60, 0xc420495b70, 0x0, 0x1, 0x0, 0x0)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:331 +0xe0
github.com/golangci/golangci-lint/pkg/commands.(*Executor).executeRun(0xc42011eb90, 0xc4204b6280, 0xc420495b70, 0x0, 0x1)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:379 +0x23e
github.com/golangci/golangci-lint/pkg/commands.(*Executor).(github.com/golangci/golangci-lint/pkg/commands.executeRun)-fm(0xc4204b6280, 0xc420495b70, 0x0, 0x1)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:40 +0x52
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).execute(0xc4204b6280, 0xc420495b60, 0x1, 0x1, 0xc4204b6280, 0xc420495b60)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:760 +0x2c1
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc4204b6000, 0xa, 0xbcb5ec, 0xc4204b6a00)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:846 +0x30a
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).Execute(0xc4204b6000, 0xc42013b1e0, 0xc42011eb90)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:794 +0x2b
github.com/golangci/golangci-lint/pkg/commands.Executor.Execute(0xc4204b6000, 0xc42013b1e0, 0x0, 0xbc48a7, 0x6, 0xbc1d5f, 0x1, 0x0, 0x0, 0xc4204b5f78, ...)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/executor.go:35 +0x2b
main.main()
        /opt/go/src/github.com/golangci/golangci-lint/cmd/golangci-lint/main.go:16 +0x9a

And a variant with --disable-all, but failing to use --enable=xx correctly produces a similar response.

$ golangci-lint run -v --no-config --disable-all --enable govet
INFO[0000] Concurrency: 4, machine cpus count: 4
INFO[0000] Active linters: [govet]
INFO[0000] set GOROOT="/usr/local/go"
INFO[0000] Found paths for analysis for 2.69556ms: [. ./cmd ./dbal ./env ./lib/async ./lib/auditlog ./lib/classify ./lib/conn ./lib/daemon ./lib/locker ./lib/log ./lib/schedule ./lib/trie ./pipe ./pipe/msg ./pipe/plugin/core ./pipe/plugin/frhc ./pipe/plugin/rabbitmq ./pipe/plugin/reports ./pipe/plugin/salesforce ./pipe/plugin/telcor]
INFO[0000] Memory: 1 samples, avg is 14.7MB, max is 14.7MB
INFO[0000] Execution took 19.662404ms
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0xa41543]

goroutine 1 [running]:
github.com/golangci/golangci-lint/pkg/commands.separateNotCompilingPackages(0xc420da3ea0)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:199 +0x43
github.com/golangci/golangci-lint/pkg/commands.buildLintCtx(0xc8e360, 0xc4200d8cc0, 0xc42013d4f0, 0x1, 0x1, 0xc4200e1380, 0xc420369a40, 0x49aeff, 0xbc7742)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:264 +0x39a
github.com/golangci/golangci-lint/pkg/commands.(*Executor).runAnalysis(0xc420148af0, 0xc8e360, 0xc4200d8cc0, 0xc420148c30, 0x0, 0x5, 0x0, 0x0, 0x0)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:277 +0xf3
github.com/golangci/golangci-lint/pkg/commands.(*Executor).runAndPrint(0xc420148af0, 0xc8e360, 0xc4200d8cc0, 0xc420148c30, 0x0, 0x5, 0x0, 0x0)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:331 +0xe0
github.com/golangci/golangci-lint/pkg/commands.(*Executor).executeRun(0xc420148af0, 0xc42036c280, 0xc420148c30, 0x0, 0x5)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:379 +0x23e
github.com/golangci/golangci-lint/pkg/commands.(*Executor).(github.com/golangci/golangci-lint/pkg/commands.executeRun)-fm(0xc42036c280, 0xc420148c30, 0x0, 0x5)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/run.go:40 +0x52
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).execute(0xc42036c280, 0xc420148be0, 0x5, 0x5, 0xc42036c280, 0xc420148be0)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:760 +0x2c1
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc42036c000, 0xa, 0xbcb5ec, 0xc42036c780)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:846 +0x30a
github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra.(*Command).Execute(0xc42036c000, 0xc4200e1380, 0xc420148af0)
        /opt/go/src/github.com/golangci/golangci-lint/vendor/github.com/spf13/cobra/command.go:794 +0x2b
github.com/golangci/golangci-lint/pkg/commands.Executor.Execute(0xc42036c000, 0xc4200e1380, 0x0, 0xbc48a7, 0x6, 0xbc1d5f, 0x1, 0x0, 0x0, 0xc420369f78, ...)
        /opt/go/src/github.com/golangci/golangci-lint/pkg/commands/executor.go:35 +0x2b
main.main()
        /opt/go/src/github.com/golangci/golangci-lint/cmd/golangci-lint/main.go:16 +0x9a

Other Notes

I'm guessing it's related to enabling a default linter which was disabled with disable-all:
golangci-lint run --no-config --deadline=30s --disable-all --enable=deadcode works
golangci-lint run --no-config --deadline=30s --disable-all --enable=govet is broken

[golangci]

@dallbee thank you very much, fixed in master, check please

[dallbee]

This looks fixed. Thank you!