Swiftlint 自动更正不会修改文件

Question

在运行swiftlint 0.24.0 版本时，报错。运行autocorrect 表明文件已更正。然而，正如swiftlint 的后续运行所证明的那样，没有进行任何修改。

查看 lint 和更正两个文件 Player.swift 和 Prize.swift 的尝试。

MacBook-Pro-5: Developer$ swiftlint 
Loading configuration from '.swiftlint.yml'
Linting Swift files in current working directory
Linting 'Prize.swift' (1/2)
Linting 'Player.swift' (2/2)
Player.swift:26:19: warning: Operator Function Whitespace Violation: Operators should be surrounded by a single whitespace when defining them. (operator_whitespace)
Player.swift:27: warning: Line Length Violation: Line should be 120 characters or less: currently 131 characters (line_length)
Player.swift:39: warning: Line Length Violation: Line should be 120 characters or less: currently 147 characters (line_length)
Prize.swift:44:34: warning: Colon Violation: Colons should be next to the identifier when specifying a type and next to the key in dictionary literals. (colon)
Prize.swift:44: error: Line Length Violation: Line should be 120 characters or less: currently 210 characters (line_length)
Done linting! Found 5 violations, 1 serious in 2 files.
MacBook-Pro-5: Developer$ swiftlint autocorrect
Loading configuration from '.swiftlint.yml'
Correcting Swift files in current working directory
Correcting 'Prize.swift' (1/2)
Correcting 'Player.swift' (2/2)
Done correcting 2 files!
MacBook-Pro-5: Developer$ swiftlint 
Loading configuration from '.swiftlint.yml'
Linting Swift files in current working directory
Linting 'Prize.swift' (1/2)
Linting 'Player.swift' (2/2)
Prize.swift:44:34: warning: Colon Violation: Colons should be next to the identifier when specifying a type and next to the key in dictionary literals. (colon)
Prize.swift:44: error: Line Length Violation: Line should be 120 characters or less: currently 210 characters (line_length)
Player.swift:26:19: warning: Operator Function Whitespace Violation: Operators should be surrounded by a single whitespace when defining them. (operator_whitespace)
Player.swift:27: warning: Line Length Violation: Line should be 120 characters or less: currently 131 characters (line_length)
Player.swift:39: warning: Line Length Violation: Line should be 120 characters or less: currently 147 characters (line_length)
Done linting! Found 5 violations, 1 serious in 2 files.
MacBook-Pro-5: Developer$

这是另一次运行，但这次只有一个文件 Prize.swift 包含一个可纠正的违规行为。同样，autocorrect 不会修改：

MacBook-Pro-5:P Developer$ swiftlint 
Linting Swift files in current working directory
Linting 'Prize.swift' (1/2)
Linting 'Player.swift' (2/2)
PPrize.swift:44:34: warning: Colon Violation: Colons should be next to the identifier when specifying a type and next to the key in dictionary literals. (colon)
Done linting! Found 1 violation, 0 serious in 2 files.
MacBook-Pro-5:P Developer$ swiftlint autocorrect
Correcting Swift files in current working directory
Correcting 'Prize.swift' (1/2)
Correcting 'Player.swift' (2/2)
Done correcting 2 files!
MacBook-Pro-5:P Developer$ swiftlint 
Linting Swift files in current working directory
Linting 'Prize.swift' (1/2)
Linting 'Player.swift' (2/2)
PPrize.swift:44:34: warning: Colon Violation: Colons should be next to the identifier when specifying a type and next to the key in dictionary literals. (colon)
Done linting! Found 1 violation, 0 serious in 2 files.
MacBook-Pro-5:P Developer$ 

请注意，.swiftlint.yml 文件的存在与否对此没有任何影响。

缩写-即仅显示相关规则-swiftlint rules 的输出如下所示。请注意，在这三个违规行为中，colon 绝对是可以纠正的。

MacBook-Pro-5: Developer$ swiftlint rules
+------------------------------------------+--------+-------------+------------------------+-------------+---------------------------------------------------------------------------------------------------------------------------+
| identifier                               | opt-in | correctable | enabled in your config | kind        | configuration                                                                                                             |
+------------------------------------------+--------+-------------+------------------------+-------------+---------------------------------------------------------------------------------------------------------------------------+
| colon                                    | no     | yes         | yes                    | style       | warning, flexible_right_spacing: false, apply_to_dictionaries: true                                                       |
| line_length                              | no     | no          | yes                    | metrics     | warning: 120, error: 200, ignores urls: false, ignores function declarations: false, ignores comments: false              |
| operator_whitespace                      | no     | no          | yes                    | style       | warning                                                                                                                   |
+------------------------------------------+--------+-------------+------------------------+-------------+---------------------------------------------------------------------------------------------------------------------------+

关于swiftlint autocorrect如何成功运行有什么想法吗？我可能缺少一些明显的配置或参数吗？我已咨询https://github.com/realm/SwiftLint 无济于事。

Answer 1

并非所有 SwiftLint 规则都是可纠正的，这意味着在您运行 swiftlint autocorrect 后它们仍将保留。如果你运行swiftlint rules，你可以看到一个表格——除其他外——显示哪些规则是可纠正的。

我不确定您使用的是哪个版本的 SwiftLint，但我认为 line_length 或 operator_whitespace 是不可纠正的。您将不得不自己处理这些问题。