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mxcl/Version
semver (Semantic Version) Swift µFramework.
.package(url: "https://github.com/mxcl/Version.git", from: "2.0.1")

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A µ-framework for representing, comparing, encoding and utilizing semantic versions, eg. 1.2.3 or 2.0.0-beta.

This is Version.swift from the Swift Package Manager, with some minor adjustments:

  1. More compact Codable implementation †
  2. Implements LosslessStringConvertible
  3. Not a massive-single-source-file (MSSF)
  4. Online documentation
  5. Extensions for Bundle and ProcessInfo
  6. Removal of the potentially fatal ExpressibleByStringLiteral conformance
  7. A “tolerant” initializer for user input like 10.0 or v3
  8. Idiomatic implementations for Range<Version>
  9. Initialization from StringProtocol, not just String

We have automatic monitoring for changes at Apple’s repo to alert us if we should need merge any fixes.

Semantic versions can be losslessly expressed as strings; thus we do so.

‡ Like Int we can losslessly store a semantic version from a valid string, so we conform to the same protocol.

Support mxcl

Hey there, I’m Max Howell. I’m a prolific producer of open source software and probably you already use some of it (for example, I created brew). I work full-time on open source and it’s hard; currently I earn less than minimum wage. Please help me continue my work, I appreciate it 🙏🏻

Other ways to say thanks.

Usage

import Version

// these two initializers are the same, use whichever suits the code context
let v1 = Version(1,0,0)
let v2 = Version(major: 1, minor: 0, patch: 0)

let v3 = Version("1.2.3")           // =>  1.2.3: Version?
let v4 = Version(tolerant: "10.1")  // => 10.1.0: Version?
let v5 = Version(tolerant: "10")    // => 10.0.0: Version?

// a real Version object from your app’s Info.plist
let v6 = Bundle.main.version

let range = Version(1,2,3)..<Version(2,0,0)

let null: Version = .null  // => Version(0,0,0)

let foo = Version(1,2,3) < Version(2,0,0)  // => true

Installation

SwiftPM:

package.append(.package(url: "https://github.com/mxcl/Version.git", from: "2.0.0"))

Carthage:

Waiting on: @Carthage#1945.

Ranges

Ranges work as you expect, but there are caveats for prerelease identifiers, here are the rules:

1.0.0..<2.0.0 does not include eg. 2.0.0-alpha

This is probably what you expected. However:

1.0.0..<2.0.0 also does not include eg. 1.5.0-alpha

However:

1.0.0..<2.0.0-beta does include eg. 2.0.0-alpha

This is how the majority of Semantic Version libraries work.

Comparable, Equatable & Hashable

Both comparable and equatable ignore build metadata as per the specification. Thus:

Version("1.2.3+14") == Version("1.2.3+15")  // => true
Version("1.2.3+14") <= Version("1.2.3+15")  // => true
Version("1.2.3+14") <  Version("1.2.3+15")  // => false

This also means that Hashable must mirror this behavior, thus:

dict[Version("1.2.3+14")] = 1
dict[Version("1.2.3+15")] = 2
dict.count  // => 1
dict        // => ["1.2.3+15": 2]

Be aware of this as it may catch you out, naturally this will also effect structures that depend on Hashable, eg. Set.

GitHub

link
Stars: 248
Last commit: 3 weeks ago

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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.

Release Notes

2.0.1
8 weeks ago

Support verified for all new Swifts.

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