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nil pointer error when executing aqua remove #3136

@Shion1305

Description

@Shion1305

aqua info

$ aqua info
{
  "version": "2.35.0",
  "commit_hash": "fa5874acd5de87ca9e52b0c2b310130fa020d305",
  "os": "darwin",
  "arch": "arm64",
  "pwd": "/Users/(USER)/gitClones/terraformer",
  "root_dir": "/Users/(USER)/.local/share/aquaproj-aqua",
  "env": {},
  "config_files": []
}

Overview

When running the command aqua remove {cmd} for a command that exists in the system but is not defined in aqua.yaml, a nil panic occurs. This happens because the code attempts to reference findResult.Package, which is nil in this case, causing the panic.

if err := c.removePackage(logE, param.RootDir, findResult.Package.PackageInfo); err != nil {

findResult is returned from controller/which/which.go, where Package is nil in some case.

if exePath := c.lookPath(c.osenv.Getenv("PATH"), exeName); exePath != "" {
return &FindResult{
ExePath: exePath,
}, nil
}

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x10281d5e0]

goroutine 1 [running]:
github.com/aquaproj/aqua/v2/pkg/controller/remove.(*Controller).removeCommands(0x14000310100, {0x102bdcd20, 0x1400012cb40}, 0x140004ee230, 0x1400001c6e0, {0x14000041740?, 0x14000310100?, 0x0?})
        /home/runner/work/aqua/aqua/pkg/controller/remove/remove.go:166 +0x1d0
github.com/aquaproj/aqua/v2/pkg/controller/remove.(*Controller).Remove(0x14000310100, {0x102bdcd20, 0x1400012cb40}, 0x140004ee230, 0x1400001c6e0)
        /home/runner/work/aqua/aqua/pkg/controller/remove/remove.go:41 +0x2d4
github.com/aquaproj/aqua/v2/pkg/cli.(*Runner).removeAction(0x14000100690, 0x14000316440)
        /home/runner/work/aqua/aqua/pkg/cli/remove.go:87 +0x230
github.com/urfave/cli/v2.(*Command).Run(0x1400001c000, 0x14000316440, {0x14000314e20, 0x2, 0x2})
        /home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/command.go:276 +0x71c
github.com/urfave/cli/v2.(*Command).Run(0x1400001c420, 0x14000316100, {0x1400010c180, 0x3, 0x3})
        /home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/command.go:269 +0x918
github.com/urfave/cli/v2.(*App).RunContext(0x14000018000, {0x102bdcd20, 0x1400012cb40}, {0x1400010c180, 0x3, 0x3})
        /home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/app.go:333 +0x51c
github.com/aquaproj/aqua/v2/pkg/cli.(*Runner).Run(0x14000100690, {0x102bdcd20, 0x1400012cb40}, {0x1400010c180, 0x3, 0x3})
        /home/runner/work/aqua/aqua/pkg/cli/runner.go:227 +0x28e4
main.core(0x140004ee230, 0x140001404a0)
        /home/runner/work/aqua/aqua/cmd/aqua/main.go:56 +0x228
main.main()
        /home/runner/work/aqua/aqua/cmd/aqua/main.go:30 +0x48

How to reproduce

aqua.yaml → deleted manually before executing command

$ aqua remove terraform

Debug output

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x10120d5e0]

goroutine 1 [running]:
github.com/aquaproj/aqua/v2/pkg/controller/remove.(*Controller).removeCommands(0x14000174180, {0x1015ccd20, 0x1400012c000}, 0x140001700e0, 0x140000f29a0, {0x14000113aa0?, 0x14000174180?, 0x0?})
	/home/runner/work/aqua/aqua/pkg/controller/remove/remove.go:166 +0x1d0
github.com/aquaproj/aqua/v2/pkg/controller/remove.(*Controller).Remove(0x14000174180, {0x1015ccd20, 0x1400012c000}, 0x140001700e0, 0x140000f29a0)
	/home/runner/work/aqua/aqua/pkg/controller/remove/remove.go:41 +0x2d4
github.com/aquaproj/aqua/v2/pkg/cli.(*Runner).removeAction(0x140001002d0, 0x1400012c540)
	/home/runner/work/aqua/aqua/pkg/cli/remove.go:87 +0x230
github.com/urfave/cli/v2.(*Command).Run(0x140000f22c0, 0x1400012c540, {0x14000140e00, 0x2, 0x2})
	/home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/command.go:276 +0x71c
github.com/urfave/cli/v2.(*Command).Run(0x140000f26e0, 0x1400012c200, {0x1400010c180, 0x3, 0x3})
	/home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/command.go:269 +0x918
github.com/urfave/cli/v2.(*App).RunContext(0x14000496400, {0x1015ccd20, 0x1400012c000}, {0x1400010c180, 0x3, 0x3})
	/home/runner/go/pkg/mod/github.com/urfave/cli/v2@v2.27.4/app.go:333 +0x51c
github.com/aquaproj/aqua/v2/pkg/cli.(*Runner).Run(0x140001002d0, {0x1015ccd20, 0x1400012c000}, {0x1400010c180, 0x3, 0x3})
	/home/runner/work/aqua/aqua/pkg/cli/runner.go:227 +0x28e4
main.core(0x140001700e0, 0x14000492260)
	/home/runner/work/aqua/aqua/cmd/aqua/main.go:56 +0x228
main.main()
	/home/runner/work/aqua/aqua/cmd/aqua/main.go:30 +0x48

Expected behaviour

panic should never happen

Actual behaviour

nil pointer panic occurs

Note

No response

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