phpcs config-set for Drupal using Coder module

phpcs.txt

# Basic default configs.
phpcs --config-set installed_paths ~/.composer/vendor/drupal/coder/coder_sniffer
phpcs --config-set default_standard Drupal
phpcs --config-set colors 1

# Show all errors.
phpcs --config-set error-severity 1

# Shows warnings, but doesn't return a non-zero return.
phpcs --config-set ignore_warnings_on_exit 1

# Hides some warnings at a lower severity level like "Line exceeds 80 characters".
phpcs --config-set warning-severity 6

# Show current configuration.
phpcs --config-show

# Other useful commands and snippets.
--report=gitblame (shows the author of the git commit of the offending line)
-w (show warnings even if disabled by default)
phpcs --config-set show_warnings 0 (if you want to hide all warnings)