Implement Concurrency package

Author: ns-vasilev

.swiftformat

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+# Stream rules
+
+--swiftversion 5.3
+
+# Use 'swiftformat --options' to list all of the possible options
+
+--header "\nConcurrency\nCopyright © {created.year} Space Code. All rights reserved.\n//"
+
+--enable blankLinesBetweenScopes
+--enable blankLinesAtStartOfScope
+--enable blankLinesAtEndOfScope
+--enable blankLinesAroundMark
+--enable anyObjectProtocol
+--enable consecutiveBlankLines
+--enable consecutiveSpaces
+--enable duplicateImports
+--enable elseOnSameLine
+--enable emptyBraces
+--enable initCoderUnavailable
+--enable leadingDelimiters
+--enable numberFormatting
+--enable preferKeyPath
+--enable redundantBreak
+--enable redundantExtensionACL
+--enable redundantFileprivate
+--enable redundantGet
+--enable redundantInit
+--enable redundantLet
+--enable redundantLetError
+--enable redundantNilInit
+--enable redundantObjc
+--enable redundantParens
+--enable redundantPattern
+--enable redundantRawValues
+--enable redundantReturn
+--enable redundantSelf
+--enable redundantVoidReturnType
+--enable semicolons
+--enable sortedImports
+--enable sortedSwitchCases
+--enable spaceAroundBraces
+--enable spaceAroundBrackets
+--enable spaceAroundComments
+--enable spaceAroundGenerics
+--enable spaceAroundOperators
+--enable spaceInsideBraces
+--enable spaceInsideBrackets
+--enable spaceInsideComments
+--enable spaceInsideGenerics
+--enable spaceInsideParens
+--enable strongOutlets
+--enable strongifiedSelf
+--enable todos
+--enable trailingClosures
+--enable unusedArguments
+--enable void
+--enable markTypes
+--enable isEmpty
+
+# format options
+
+--wraparguments before-first
+--wrapcollections before-first
+--maxwidth 140

.swiftlint.yml

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+excluded:
+  - Tests
+  - Package.swift
+  - .build
+
+# Rules
+
+disabled_rules:
+  - trailing_comma
+  - todo
+  - opening_brace
+
+opt_in_rules: # some rules are only opt-in
+  - anyobject_protocol
+  - array_init
+  - attributes
+  - closure_body_length
+  - closure_end_indentation
+  - closure_spacing
+  - collection_alignment
+  - conditional_returns_on_newline
+  - contains_over_filter_count
+  - contains_over_filter_is_empty
+  - contains_over_first_not_nil
+  - contains_over_range_nil_comparison
+  - convenience_type
+  - discouraged_object_literal
+  - discouraged_optional_boolean
+  - empty_collection_literal
+  - empty_count
+  - empty_string
+  - empty_xctest_method
+  - enum_case_associated_values_count
+  - explicit_init
+  - fallthrough
+  - fatal_error_message
+  - file_name
+  - file_types_order
+  - first_where
+  - flatmap_over_map_reduce
+  - force_unwrapping
+  - ibinspectable_in_extension
+  - identical_operands
+  - implicit_return
+  - inert_defer
+  - joined_default_parameter
+  - last_where
+  - legacy_multiple
+  - legacy_random
+  - literal_expression_end_indentation
+  - lower_acl_than_parent
+  - multiline_arguments
+  - multiline_function_chains
+  - multiline_literal_brackets
+  - multiline_parameters
+  - multiline_parameters_brackets
+  - no_space_in_method_call
+  - operator_usage_whitespace
+  - optional_enum_case_matching
+  - orphaned_doc_comment
+  - overridden_super_call
+  - override_in_extension
+  - pattern_matching_keywords
+  - prefer_self_type_over_type_of_self
+  - prefer_zero_over_explicit_init
+  - prefixed_toplevel_constant
+  - private_action
+  - prohibited_super_call
+  - quick_discouraged_call
+  - quick_discouraged_focused_test
+  - quick_discouraged_pending_test
+  - reduce_into
+  - redundant_nil_coalescing
+  - redundant_objc_attribute
+  - redundant_type_annotation
+  - required_enum_case
+  - single_test_class
+  - sorted_first_last
+  - sorted_imports
+  - static_operator
+  - strict_fileprivate
+  - switch_case_on_newline
+  - toggle_bool
+  - unavailable_function
+  - unneeded_parentheses_in_closure_argument
+  - unowned_variable_capture
+  - untyped_error_in_catch
+  - vertical_parameter_alignment_on_call
+  - vertical_whitespace_closing_braces
+  - vertical_whitespace_opening_braces
+  - xct_specific_matcher
+  - yoda_condition
+  
+force_cast: warning
+force_try: warning
+
+identifier_name:
+  excluded:
+    - id
+    - URL
+
+analyzer_rules:
+  - unused_import
+  - unused_declaration
+
+line_length:
+  warning: 130
+  error: 200
+  
+type_body_length:
+  warning: 300
+  error: 400
+  
+file_length:
+  warning: 500
+  error: 1200
+  
+function_body_length:
+  warning: 30
+  error: 50
+  
+large_tuple:
+  error: 3
+  
+nesting:
+  type_level:
+    warning: 2
+  statement_level:
+    warning: 10
+
+
+type_name:
+  max_length:
+    warning: 40
+    error: 50

.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata

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+all: bootstrap
+
+bootstrap: hook
+	mint bootstrap
+
+hook:
+	ln -sf ../../hooks/pre-commit .git/hooks/pre-commit
+	chmod +x .git/hooks/pre-commit
+
+mint:
+	mint bootstrap
+
+lint:
+	mint run swiftlint
+
+fmt:
+	mint run swiftformat Sources Tests
+
+.PHONY: all bootstrap hook mint lint fmt

Makefile

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+nicklockwood/SwiftFormat@0.47.12
+realm/SwiftLint@0.47.1

Mintfile

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+// swift-tools-version: 5.7
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "Concurrency",
+    platforms: [
+        .macOS(.v10_15),
+        .iOS(.v13),
+        .watchOS(.v6),
+        .tvOS(.v11),
+    ],
+    products: [
+        .library(name: "Concurrency", targets: ["Concurrency"]),
+        .library(name: "TestConcurrency", targets: ["TestConcurrency"]),
+    ],
+    dependencies: [],
+    targets: [
+        .target(name: "Concurrency", dependencies: []),
+        .target(name: "TestConcurrency", dependencies: ["Concurrency"]),
+        .testTarget(name: "ConcurrencyTests", dependencies: ["Concurrency"]),
+    ]
+)

Package.swift

@@ -1 +1,91 @@
-# concurrency
+![concurrency: A collection of concurrency primitives](https://raw.githubusercontent.com/space-code/concurrency/dev/Resources/concurrency.png)
+
+<h1 align="center" style="margin-top: 0px;">concurrency</h1>
+
+<p align="center">
+<a href="https://github.com/space-code/concurrency/blob/main/LICENSE"><img alt="Liscence" src="https://img.shields.io/cocoapods/l/service-core.svg?style=flat"></a> 
+<a href="https://developer.apple.com/"><img alt="Platform" src="https://img.shields.io/badge/platform-ios%20%7C%20osx%20%7C%20watchos%20%7C%20tvos-%23989898"/></a> 
+<a href="https://developer.apple.com/swift"><img alt="Swift4.2" src="https://img.shields.io/badge/language-Swift5.3-orange.svg"/></a>
+</p>
+
+## Description
+`concurrency` is a collection of concurrency primitives which helps increase testability
+
+- [Usage](#usage)
+- [Requirements](#requirements)
+- [Installation](#installation)
+- [Communication](#communication)
+- [Contributing](#contributing)
+- [Author](#author)
+- [License](#license)
+
+## Usage
+
+```swift
+import Concurrency
+
+// Create `DispatchQueueFactory` instance
+let factory = DispatchQueueFactory()
+
+// Build `main` queue from factory
+let mainQueue = factory.main()
+
+// Build `global` queue with QOS
+let globalQueue = factory.global(qos: .background)
+
+// Build `private` queue
+let privateQueue = factory.privateQueue(label: String(describing: self),
+                                        qos: .background,
+                                        attributes: .concurrent,
+                                        autoreleaseFrequency: .inherit,
+                                        target: nil)
+```
+
+For testing purposes, you can use `TestConrurrency` target.
+
+```swift
+import TestConcurrency
+
+let testQueue = TestDispatchQueue()
+
+// Run block immediately
+testQueue.async {}
+```
+
+## Requirements
+- iOS 13.0+ / macOS 10.15+ / tvOS 11.0+ / watchOS 6.0+
+- Xcode 14.0
+- Swift 5
+
+## Installation
+### Swift Package Manager
+
+The [Swift Package Manager](https://swift.org/package-manager/) is a tool for automating the distribution of Swift code and is integrated into the `swift` compiler. It is in early development, but `concurrency` does support its use on supported platforms.
+
+Once you have your Swift package set up, adding `concurrency` as a dependency is as easy as adding it to the `dependencies` value of your `Package.swift`.
+
+```swift
+dependencies: [
+    .package(url: "https://github.com/space-code/concurrency.git", .upToNextMajor(from: "0.0.1"))
+]
+```
+
+## Communication
+- If you **found a bug**, open an issue.
+- If you **have a feature request**, open an issue.
+- If you **want to contribute**, submit a pull request.
+
+## Contributing
+Bootstrapping development environment
+
+```
+make bootstrap
+```
+
+Please feel free to help out with this project! If you see something that could be made better or want a new feature, open up an issue or send a Pull Request!
+
+## Author
+Nikita Vasilev, nv3212@gmail.com
+
+## License
+concurrency is available under the MIT license. See the LICENSE file for more info.

README.md

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+//
+// Concurrency
+// Copyright © 2023 Space Code. All rights reserved.
+//
+
+import Foundation
+
+extension DispatchQueue: IDispatchQueue {
+    public func async(qos: DispatchQoS, flags: DispatchWorkItemFlags, execute work: @escaping @convention(block) () -> Void) {
+        async(group: nil, qos: qos, flags: flags, execute: work)
+    }
+}