Common used rules for swiftlint

swiftlint.yml

included:
  - {Project folder}
  - {Project test folder}
excluded:
  - {Project folder}/Extensions/UIImage+Assets.swift # automatically generated file
opt_in_rules:
  - closure_spacing  # closure should have single space inside each brace
  - empty_count      # prefer isEmpty over comparing to 0
  - number_separator # underscore should be used as thousand separator in large decimal numbers
disabled_rules:
  - todo             # todo and fixme should be avoided. Use custom script for this  
  - vertical_parameter_alignment # parameter alignment in functions. Xcode use another alignment logic
line_length: 120
function_body_length:
  - 20
  - 40
nesting:
  type_level:
    warning: 3
  statement_level:
    warning: 10
type_name:
  excluded: K
variable_name:
  excluded:
    - id
custom_rules:
  open_bracket_blank_line:
    included: ".*.swift"
    name: "blank line after open bracket"
    regex: "{\n[[[:blank:]]\n]*\n"
    message: "Blank line after open bracket should be removed"
    severity: warning
  closed_brackets_blank_line:
    included: ".*.swift"
    name: "blank lines between closed brackets"
    regex: "}\n[[[:blank:]]\n]*\n}"
    message: "Blank lines between closed brackets should be removed"
    severity: warning