Add swiftlint config

.swiftlint.yml

@@ -0,0 +1,34 @@
+# https://github.com/realm/SwiftLint
+
+excluded:
+ - Tests/XCTestManifests.swift
+
+disabled_rules:
+ - type_name
+ - identifier_name
+ - force_cast
+ - xctfail_message
+ - function_body_length
+ - file_length
+
+nesting:
+ type_level:
+ warning: 2
+
+line_length:
+ warning: 200
+
+file_length:
+ warning: 600
+
+type_body_length:
+ warning: 400
+
+function_body_length:
+ warning: 50
+
+cyclomatic_complexity:
+ warning: 12
+
+statement_position:
+ statement_mode: uncuddled_else

DifferenceKit.xcodeproj/project.pbxproj

@@ -179,6 +179,7 @@
  6B2DF86A210E2C12004D2D40 /* Frameworks */,
  6B2DF86B210E2C12004D2D40 /* Headers */,
  6B2DF86C210E2C12004D2D40 /* Resources */,
+ 6B7EEDA4224E5A5000060872 /* SwiftLint */,
  );
  buildRules = (
  );
@@ -263,6 +264,27 @@
  };
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+ 6B7EEDA4224E5A5000060872 /* SwiftLint */ = {
+ isa = PBXShellScriptBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ );
+ inputFileListPaths = (
+ );
+ inputPaths = (
+ );
+ name = SwiftLint;
+ outputFileListPaths = (
+ );
+ outputPaths = (
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ shellPath = /bin/sh;
+ shellScript = "if which swiftlint >/dev/null; then\nswiftlint\nelse\necho \"warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint\"\nfi\n";
+ };
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
  6B2DF869210E2C12004D2D40 /* Sources */ = {
  isa = PBXSourcesBuildPhase;

Sources/Algorithm.swift

@@ -1,3 +1,5 @@
+// swiftlint:disable cyclomatic_complexity
+
 public extension StagedChangeset where Collection: RangeReplaceableCollection, Collection.Element: Differentiable {
  /// Creates a new `StagedChangeset` from the two collections.
  ///