2022-07-28

rubocop gemを改造して、slimファイルを直接動作させる実験に成功した。

$ ./exe/rubocop dummy.slim
Inspecting 1 file
W

Offenses:

dummy.slim:1:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- "a"
  ^
dummy.slim:1:3: C: [Correctable] Style/StringLiterals: Prefer single-quoted strings when you don't need string interpolation or special symbols.
- "a"
  ^^^
dummy.slim:1:6: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- "a"
     
dummy.slim:2:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
= b
  ^
dummy.slim:2:4: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
= b
   
dummy.slim:3:5: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
| #{"c"}
    ^
dummy.slim:3:5: C: [Correctable] Style/StringLiterals: Prefer single-quoted strings when you don't need string interpolation or special symbols.
| #{"c"}
    ^^^
dummy.slim:3:8: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
| #{"c"}
       
dummy.slim:4:3: W: Lint/UselessAssignment: Useless assignment to variable - a.
- a = 1
  ^
dummy.slim:4:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- a = 1
  ^
dummy.slim:4:8: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- a = 1
       
dummy.slim:5:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- a if array.size > 0
  ^
dummy.slim:5:8: C: [Correctable] Style/NumericPredicate: Use array.size.positive? instead of array.size > 0.
- a if array.size > 0
       ^^^^^^^^^^^^^^
dummy.slim:5:8: C: [Correctable] Style/ZeroLengthPredicate: Use !empty? instead of size > 0.
- a if array.size > 0
       ^^^^^^^^^^^^^^
dummy.slim:5:22: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- a if array.size > 0
                     
dummy.slim:6:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- a if !b
  ^
dummy.slim:6:3: C: [Correctable] Style/NegatedIf: Favor unless over if for negative conditions.
- a if !b
  ^^^^^^^
dummy.slim:6:10: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- a if !b
         
dummy.slim:7:3: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- a if !b # rubocop:disable Style/NegatedIf
  ^
dummy.slim:7:44: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- a if !b # rubocop:disable Style/NegatedIf
                                           
dummy.slim:8:6: C: [Correctable] Style/FrozenStringLiteralComment: Missing frozen string literal comment.
- if "a"
     ^
dummy.slim:8:6: C: [Correctable] Style/StringLiterals: Prefer single-quoted strings when you don't need string interpolation or special symbols.
- if "a"
     ^^^
dummy.slim:8:9: C: [Correctable] Layout/TrailingEmptyLines: Final newline missing.
- if "a"
        

1 file inspected, 23 offenses detected, 22 offenses autocorrectable

rubocopの改造とrubocop-slimでの実験が上手くいったので、rubocopにpull requestをdraftで出した。