sayboras bd2921655a Added go-mnd linter (#842)
* Initial commit

* Fixed goimports

* Update pkg/golinters/mnd.go

Co-Authored-By: Bot from GolangCI <42910462+golangcibot@users.noreply.github.com>

* Run goimports

* Update pkg/golinters/mnd.go

Co-Authored-By: Bot from GolangCI <42910462+golangcibot@users.noreply.github.com>

* Add prefix for goimport local

* Run make README.md

* Incorporate review comments
Add test cases

* Update readme

* Update the description

* Removed subpath in local-prefixes

* Update readme
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go-mnd - Magic number detector for Golang

A vet analyzer to detect magic numbers.

What is a magic number?
A magic number is a numeric literal that is not defined as a constant, but which may change, and therefore can be hard to update. It's considered a bad programming practice to use numbers directly in any source code without an explanation. It makes programs harder to read, understand, and maintain.

Project status

Build Status Go Report Card

Install

This analyzer requires Golang in version >= 1.12 because it's depends on the go/analysis API.

go get github.com/tommy-muehle/go-mnd/cmd/mnd

To install with Homebrew, run:

brew tap tommy-muehle/tap && brew install tommy-muehle/tap/mnd

On Windows download the latest release.

Usage

asciicast

go vet -vettool $(which mnd) ./...

or directly

mnd ./...

The -checks option let's you define a comma separated list of checks.

Checks

By default this detector analyses arguments, assigns, cases, conditions, operations and return statements.

  • argument
t := http.StatusText(200)
  • assign
c := &http.Client{
    Timeout: 5 * time.Second,
}
  • case
switch x {
    case 3:
}
  • condition
if x > 7 {
}
  • operation
var x, y int
y = 10 * x
  • return
return 3

Notices

By default the number 0 is excluded!

License

The MIT License (MIT). Please see LICENSE for more information.