Overview

realm/SwiftLint: A tool to enforce Swift style and conventions.

What you can see in this article

How to install SwiftLint with Homebrew
How to use Swiftlint in Xcode
How to set Xcode to deal with trailing_whitespace that is displayed a lot in Swiftlint

Installation

Homebrew

brew install swiftlint

Package Manager for macOS (or Linux) — Homebrew

Used with Xcode

Add the following to Run Phases as shown on the Official Page.

if which swiftlint >/dev/null; then
  swiftlint
else
  echo "warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint"
fi

A lot of warnings are coming out!

スクリーンショット 2020-10-04 12.58.41.png

How to deal with the crazy Whitespace Violation

By inserting swiftlint There are now a lot of trailing_whitespace warnings.

It seems to happen when there is a space in a blank line, but it is troublesome to erase the space when each line is open.

Check Preference> TextEditing> Editing> ʻIncluding whitespace-only lines` to eliminate this.

If you apply this, the blank space will be erased without permission.

Conducted Swift Lint with Github Actions

norio-nomura/action-swiftlint: GitHub Action for SwiftLint I used this.

Summary

Install swiftlint with brew
Added to Xcode's Run Phases!
Change the Editing setting of Xcode Preference!

There are many other ways to do it realm / SwiftLint: A tool to enforce Swift style and conventions. Please check.

reference

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