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👻 gost

gost is a static checker for Golang. It contains aggressive rules that aren't afraid false-positive as long as diagnostics are informative.

Installation

I recommend to use gost via reviewdog. Complete example configuration:

To run it locally, run following:

# install
go install github.com/seiyab/gost@latest

# run
go vet -vettool="$(which gost)" ./...

Analyzers

name description practical discovery inspired by
closeCloser report that closer isn't closed reviewdog/reviewdog#1692
multipleErrors report suspicious error concatenation opentofu/opentofu#539
noDiscardError report that error is discarded cli/cli#8026
noMutateGlobal reports indirect mutation of global variable https://pkg.go.dev/vuln/GO-2024-2618
openFileFlag report suspicious combination of flags in os.OpenFile() anchore/go-logger#13
preferFilepath report misuse of "path" package where "path/filepath" should be suitable anchore/grype#1767
sliceInitialLength reports confusion between slice length and capacity beego/beego#5631 dominikh/go-tools#112
urlString urlString reports unsafe construction of URL-like string. dominikh/go-tools#730
wrapError report senseless error wrapping

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static code check for Golang

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