forked from BilalY/Rasagar
37 lines
1.6 KiB
C#
37 lines
1.6 KiB
C#
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using System;
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using System.Text.RegularExpressions;
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using Semver;
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namespace UnityEditor.PackageManager.ValidationSuite
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{
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static class UnityVersion
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{
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const string k_Major = @"(?<major>\d{1,4})";
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const string k_Minor = @"(?<minor>[0-9])";
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const string k_Patch = @"(?<update>\d|[1-9]\d*)";
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const string k_Build = @"(?<buildtype>[abfp])(?<buildnumber>[1-9]\d*)(-.*)?";
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static readonly string k_UnityVersionPattern = $@"^{k_Major}\.{k_Minor}(\.{k_Patch}({k_Build})?)?$";
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// Converts a Unity version (2017.3, 2018.1.0a1, etc.) into a SemVersion instance.
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// Throws on invalid Unity version syntax.
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//
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// Ported from upm-core:
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// https://github.cds.internal.unity3d.com/unity/upm-core/blob/2a5c988/lib/private/utilities/unity.js
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internal static SemVersion Parse(string unityVersion)
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{
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var match = Regex.Match(unityVersion, k_UnityVersionPattern);
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if (!match.Success)
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throw new ArgumentException($"{nameof(unityVersion)} is not a valid Unity version: {unityVersion}");
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var major = int.Parse(match.Groups["major"].Value);
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var minor = int.Parse(match.Groups["minor"].Value);
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var patch = match.Groups["update"].Success ? int.Parse(match.Groups["update"].Value) : 0;
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var prerelease = match.Groups["buildtype"].Success ?
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$"{match.Groups["buildtype"].Value}.{match.Groups["buildnumber"].Value}" :
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"a.1";
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return new SemVersion(major, minor, patch, prerelease, string.Empty);
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}
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}
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}
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