varerr

sleuth

varerr checks that you initialize error type.
If you don't wanna check it, you can pass this linter check with novarerr tag.

Instruction

go install github.com/sivchari/varerr/cmd/varerr

Usage

var err error

err = funcA()
if err !=  nil {
    ... 
}

err = funcB()
if err !=  nil {
    ...
}

fish

$ go vet -vettool=(which varerr) ./...

bash

$ go vet -vettool=`which varerr` ./...

output

The error type `err` is initialized with var

above code can been fixed

if err := funcA(); err != nil {
    ...
}

if err := funcB(); err != nil {
    ...
}

Ignoring issues

You can ignore a particular issue by including the directive // novarerr on that line

var err error // novarerr

CI

CircleCI

- run:
    name: Install varerr
    command: go get github.com/sivchari/varerr

- run:
    name: Run varerr
    command: go vet -vettool=`which varerr` ./...

GitHub Actions

- name: Install varerr
    run: go get github.com/sivchari/varerr

- name: Run varerr
    run: go vet -vettool=`which varerr` ./...