Running with Docker isn't working

[skhaz]

Hi,

I'm trying to run this excellent tool locally using Docker. However, it's returning an error:

$ docker run -t --rm -v $(pwd):/app -w /app golangci/golangci-lint golangci-lint run 
ERRO [linters_context] typechecking error: pattern ./...: directory prefix . does not contain main module or its selected dependencies 
$ ls
main.go

Am I doing something wrong?

[ldez]

Hi,

the go.mod seems missing.

[skhaz]

Hi @ldez, thanks for your answer. I have added a go.mod (see below), however, even in other project it fails, when I had the CLI installed by using brew it worked, but not with docker (same error above)

$ cat go.mod
module play.ground

go 1.19
$ cat main.go
package main

import (
	"fmt"
)

func Foo() (string, bool) {
	return "hello", true
}

func main() {
	var (
		val string
		ok  bool
	)

	if val, ok = Foo(); ok {
		fmt.Printf("1 %v\n", val)
	}

	fmt.Printf("2 %v\n", val)
}

[ldez]

I use the content you provided:

$ tree   
.
├── go.mod
└── main.go

$ docker run -t --rm -v $(pwd):/app -w /app golangci/golangci-lint:v1.50.1 golangci-lint version         
golangci-lint has version v1.50.1 built from 8926a95f on 2022-10-22T11:12:23Z

$ docker run -t --rm -v $(pwd):/app -w /app golangci/golangci-lint:v1.50.1 golangci-lint run --enable-all
WARN [runner] The linter 'structcheck' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter.  Replaced by unused. 
WARN [runner] The linter 'ifshort' is deprecated (since v1.48.0) due to: The repository of the linter has been deprecated by the owner.  
WARN [runner] The linter 'scopelint' is deprecated (since v1.39.0) due to: The repository of the linter has been deprecated by the owner.  Replaced by exportloopref. 
WARN [runner] The linter 'maligned' is deprecated (since v1.38.0) due to: The repository of the linter has been archived by the owner.  Replaced by govet 'fieldalignment'. 
WARN [runner] The linter 'golint' is deprecated (since v1.41.0) due to: The repository of the linter has been archived by the owner.  Replaced by revive. 
WARN [runner] The linter 'interfacer' is deprecated (since v1.38.0) due to: The repository of the linter has been archived by the owner.  
WARN [runner] The linter 'exhaustivestruct' is deprecated (since v1.46.0) due to: The owner seems to have abandoned the linter.  Replaced by exhaustruct. 
WARN [runner] The linter 'varcheck' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter.  Replaced by unused. 
WARN [runner] The linter 'nosnakecase' is deprecated (since v1.48.1) due to: The repository of the linter has been deprecated by the owner.  Replaced by revive(var-naming). 
WARN [runner] The linter 'deadcode' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter.  Replaced by unused. 
main.go:18:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo)
                fmt.Printf("1 %v\n", val)
                ^
main.go:21:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo)
        fmt.Printf("2 %v\n",    val)
        ^

I am on Linux but as you are using the Docker image the OS has no impact.

[skhaz]

Thanks, @ldez. I have discovered the problem: My source code was located in /opt/workspace, and I had to manually add this directory to the Docker desktop (macOS) and, most important: restart docker to the changes take effect!