Parallel autocorrect

[marcelofabri]

Fix #1578

[SwiftLintBot]

	12 Messages
📖	Linting Aerial with this PR took 0.37s vs 0.34s on master (8% slower)
📖	Linting Alamofire with this PR took 2.27s vs 2.28s on master (0% faster)
📖	Linting Firefox with this PR took 9.9s vs 9.91s on master (0% faster)
📖	Linting Kickstarter with this PR took 14.08s vs 14.3s on master (1% faster)
📖	Linting Moya with this PR took 0.64s vs 0.64s on master (0% slower)
📖	Linting Nimble with this PR took 1.29s vs 1.29s on master (0% slower)
📖	Linting Quick with this PR took 0.42s vs 0.43s on master (2% faster)
📖	Linting Realm with this PR took 1.97s vs 1.98s on master (0% faster)
📖	Linting SourceKitten with this PR took 0.85s vs 0.83s on master (2% slower)
📖	Linting Sourcery with this PR took 2.72s vs 2.67s on master (1% slower)
📖	Linting Swift with this PR took 9.39s vs 9.54s on master (1% faster)
📖	Linting WordPress with this PR took 9.37s vs 9.46s on master (0% faster)

Generated by 🚫 Danger

[codecov-io]

Codecov Report

Merging #1679 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1679      +/-   ##
==========================================
- Coverage   87.32%   87.31%   -0.01%     
==========================================
  Files         201      201              
  Lines       10006    10007       +1     
==========================================
  Hits         8738     8738              
- Misses       1268     1269       +1

Impacted Files	Coverage Δ
Source/swiftlint/Commands/AutoCorrectCommand.swift	0% <0%> (ø)	⬆️

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[jpsim]

I could've sworn I had a reason for not doing this... 🤔

I vaguely recall it not being safe to do, but I can't think of why anymore.

It's definitely not safe to parallelize the corrections of multiple rules in a single file, but it should be safe to parallelize correcting multiple files concurrently. 👍

[marcelofabri]

🚢