diff --git a/ModAssistant/Libs/semver/IntExtensions.cs b/ModAssistant/Libs/semver/IntExtensions.cs new file mode 100644 index 0000000..b715259 --- /dev/null +++ b/ModAssistant/Libs/semver/IntExtensions.cs @@ -0,0 +1,55 @@ +/* +Copyright (c) 2013 Max Hauser + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +using System.Text; + +namespace ModAssistant.Libs +{ + internal static class IntExtensions + { + /// + /// The number of digits in a non-negative number. Returns 1 for all + /// negative numbers. That is ok because we are using it to calculate + /// string length for a for numbers that + /// aren't supposed to be negative, but when they are it is just a little + /// slower. + /// + /// + /// This approach is based on https://stackoverflow.com/a/51099524/268898 + /// where the poster offers performance benchmarks showing this is the + /// fastest way to get a number of digits. + /// + public static int Digits(this int n) + { + if (n < 10) return 1; + if (n < 100) return 2; + if (n < 1_000) return 3; + if (n < 10_000) return 4; + if (n < 100_000) return 5; + if (n < 1_000_000) return 6; + if (n < 10_000_000) return 7; + if (n < 100_000_000) return 8; + if (n < 1_000_000_000) return 9; + return 10; + } + } +} diff --git a/ModAssistant/Libs/semver/SemVersion.cs b/ModAssistant/Libs/semver/SemVersion.cs new file mode 100644 index 0000000..94a2541 --- /dev/null +++ b/ModAssistant/Libs/semver/SemVersion.cs @@ -0,0 +1,598 @@ +/* +Copyright (c) 2013 Max Hauser + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +using System; +using System.Globalization; +using System.Text; +#if !NETSTANDARD +using System.Runtime.Serialization; +using System.Security.Permissions; +#endif +using System.Text.RegularExpressions; + +namespace ModAssistant.Libs +{ + /// + /// A semantic version implementation. + /// Conforms with v2.0.0 of http://semver.org + /// +#if NETSTANDARD + public sealed class SemVersion : IComparable, IComparable +#else + [Serializable] + public sealed class SemVersion : IComparable, IComparable, ISerializable +#endif + { + private static readonly Regex ParseEx = + new Regex(@"^(?\d+)" + + @"(?>\.(?\d+))?" + + @"(?>\.(?\d+))?" + + @"(?>\-(?
[0-9A-Za-z\-\.]+))?" +
+                @"(?>\+(?[0-9A-Za-z\-\.]+))?$",
+#if NETSTANDARD
+                RegexOptions.CultureInvariant | RegexOptions.ExplicitCapture,
+#else
+                RegexOptions.CultureInvariant | RegexOptions.Compiled | RegexOptions.ExplicitCapture,
+#endif
+                TimeSpan.FromSeconds(0.5));
+
+#if !NETSTANDARD
+#pragma warning disable CA1801 // Parameter unused
+        /// 
+        /// Deserialize a .
+        /// 
+        /// The  parameter is null.
+        private SemVersion(SerializationInfo info, StreamingContext context)
+#pragma warning restore CA1801 // Parameter unused
+        {
+            if (info == null) throw new ArgumentNullException(nameof(info));
+            var semVersion = Parse(info.GetString("SemVersion"));
+            Major = semVersion.Major;
+            Minor = semVersion.Minor;
+            Patch = semVersion.Patch;
+            Prerelease = semVersion.Prerelease;
+            Build = semVersion.Build;
+        }
+#endif
+
+        /// 
+        /// Constructs a new instance of the  class.
+        /// 
+        /// The major version.
+        /// The minor version.
+        /// The patch version.
+        /// The prerelease version (e.g. "alpha").
+        /// The build metadata (e.g. "nightly.232").
+        public SemVersion(int major, int minor = 0, int patch = 0, string prerelease = "", string build = "")
+        {
+            Major = major;
+            Minor = minor;
+            Patch = patch;
+
+            Prerelease = prerelease ?? "";
+            Build = build ?? "";
+        }
+
+        /// 
+        /// Constructs a new instance of the  class from
+        /// a .
+        /// 
+        /// The  that is used to initialize
+        /// the Major, Minor, Patch and Build.
+        /// A  with the same Major and Minor version.
+        /// The Patch version will be the fourth part of the version number. The
+        /// build meta data will contain the third part of the version number if
+        /// it is greater than zero.
+        public SemVersion(Version version)
+        {
+            if (version == null)
+                throw new ArgumentNullException(nameof(version));
+
+            Major = version.Major;
+            Minor = version.Minor;
+
+            if (version.Revision >= 0)
+                Patch = version.Revision;
+
+            Prerelease = "";
+
+            Build = version.Build > 0 ? version.Build.ToString(CultureInfo.InvariantCulture) : "";
+        }
+
+        /// 
+        /// Converts the string representation of a semantic version to its  equivalent.
+        /// 
+        /// The version string.
+        /// If set to  minor and patch version are required,
+        /// otherwise they are optional.
+        /// The  object.
+        /// The  is .
+        /// The  has an invalid format.
+        /// The  is missing Minor or Patch versions and  is .
+        /// The Major, Minor, or Patch versions are larger than int.MaxValue.
+        public static SemVersion Parse(string version, bool strict = false)
+        {
+            var match = ParseEx.Match(version);
+            if (!match.Success)
+                throw new ArgumentException($"Invalid version '{version}'.", nameof(version));
+
+            var major = int.Parse(match.Groups["major"].Value, CultureInfo.InvariantCulture);
+
+            var minorMatch = match.Groups["minor"];
+            int minor = 0;
+            if (minorMatch.Success)
+                minor = int.Parse(minorMatch.Value, CultureInfo.InvariantCulture);
+            else if (strict)
+                throw new InvalidOperationException("Invalid version (no minor version given in strict mode)");
+
+            var patchMatch = match.Groups["patch"];
+            int patch = 0;
+            if (patchMatch.Success)
+                patch = int.Parse(patchMatch.Value, CultureInfo.InvariantCulture);
+            else if (strict)
+                throw new InvalidOperationException("Invalid version (no patch version given in strict mode)");
+
+            var prerelease = match.Groups["pre"].Value;
+            var build = match.Groups["build"].Value;
+
+            return new SemVersion(major, minor, patch, prerelease, build);
+        }
+
+        /// 
+        /// Converts the string representation of a semantic version to its 
+        /// equivalent and returns a value that indicates whether the conversion succeeded.
+        /// 
+        /// The version string.
+        /// When the method returns, contains a  instance equivalent
+        /// to the version string passed in, if the version string was valid, or  if the
+        /// version string was not valid.
+        /// If set to  minor and patch version are required,
+        /// otherwise they are optional.
+        ///  when a invalid version string is passed, otherwise .
+        public static bool TryParse(string version, out SemVersion semver, bool strict = false)
+        {
+            semver = null;
+            if (version is null) return false;
+
+            var match = ParseEx.Match(version);
+            if (!match.Success) return false;
+
+            if (!int.TryParse(match.Groups["major"].Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var major))
+                return false;
+
+            var minorMatch = match.Groups["minor"];
+            int minor = 0;
+            if (minorMatch.Success)
+            {
+                if (!int.TryParse(minorMatch.Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out minor))
+                    return false;
+            }
+            else if (strict) return false;
+
+            var patchMatch = match.Groups["patch"];
+            int patch = 0;
+            if (patchMatch.Success)
+            {
+                if (!int.TryParse(patchMatch.Value, NumberStyles.Integer, CultureInfo.InvariantCulture, out patch))
+                    return false;
+            }
+            else if (strict) return false;
+
+            var prerelease = match.Groups["pre"].Value;
+            var build = match.Groups["build"].Value;
+
+            semver = new SemVersion(major, minor, patch, prerelease, build);
+            return true;
+        }
+
+        /// 
+        /// Checks whether two semantic versions are equal.
+        /// 
+        /// The first version to compare.
+        /// The second version to compare.
+        ///  if the two values are equal, otherwise .
+        public static bool Equals(SemVersion versionA, SemVersion versionB)
+        {
+            if (ReferenceEquals(versionA, versionB)) return true;
+            if (versionA is null || versionB is null) return false;
+            return versionA.Equals(versionB);
+        }
+
+        /// 
+        /// Compares the specified versions.
+        /// 
+        /// The first version to compare.
+        /// The second version to compare.
+        /// A signed number indicating the relative values of  and .
+        public static int Compare(SemVersion versionA, SemVersion versionB)
+        {
+            if (ReferenceEquals(versionA, versionB)) return 0;
+            if (versionA is null) return -1;
+            if (versionB is null) return 1;
+            return versionA.CompareTo(versionB);
+        }
+
+        /// 
+        /// Make a copy of the current instance with changed properties.
+        /// 
+        /// The value to replace the major version or  to leave it unchanged.
+        /// The value to replace the minor version or  to leave it unchanged.
+        /// The value to replace the patch version or  to leave it unchanged.
+        /// The value to replace the prerelease version or  to leave it unchanged.
+        /// The value to replace the build metadata or  to leave it unchanged.
+        /// The new version object.
+        /// 
+        /// The change method is intended to be called using named argument syntax, passing only
+        /// those fields to be changed.
+        /// 
+        /// 
+        /// To change only the patch version:
+        /// version.Change(patch: 4)
+        /// 
+        public SemVersion Change(int? major = null, int? minor = null, int? patch = null,
+            string prerelease = null, string build = null)
+        {
+            return new SemVersion(
+                major ?? Major,
+                minor ?? Minor,
+                patch ?? Patch,
+                prerelease ?? Prerelease,
+                build ?? Build);
+        }
+
+        /// 
+        /// Gets the major version.
+        /// 
+        /// 
+        /// The major version.
+        /// 
+        public int Major { get; }
+
+        /// 
+        /// Gets the minor version.
+        /// 
+        /// 
+        /// The minor version.
+        /// 
+        public int Minor { get; }
+
+        /// 
+        /// Gets the patch version.
+        /// 
+        /// 
+        /// The patch version.
+        /// 
+        public int Patch { get; }
+
+        /// 
+        /// Gets the prerelease version.
+        /// 
+        /// 
+        /// The prerelease version. Empty string if this is a release version.
+        /// 
+        public string Prerelease { get; }
+
+        /// 
+        /// Gets the build metadata.
+        /// 
+        /// 
+        /// The build metadata. Empty string if there is no build metadata.
+        /// 
+        public string Build { get; }
+
+        /// 
+        /// Returns the  equivalent of this version.
+        /// 
+        /// 
+        /// The  equivalent of this version.
+        /// 
+        public override string ToString()
+        {
+            // Assume all separators ("..-+"), at most 2 extra chars
+            var estimatedLength = 4 + Major.Digits() + Minor.Digits() + Patch.Digits()
+                                  + Prerelease.Length + Build.Length;
+            var version = new StringBuilder(estimatedLength);
+            version.Append(Major);
+            version.Append('.');
+            version.Append(Minor);
+            version.Append('.');
+            version.Append(Patch);
+            if (Prerelease.Length > 0)
+            {
+                version.Append('-');
+                version.Append(Prerelease);
+            }
+            if (Build.Length > 0)
+            {
+                version.Append('+');
+                version.Append(Build);
+            }
+            return version.ToString();
+        }
+
+        /// 
+        /// Compares the current instance with another object of the same type and returns an integer that indicates
+        /// whether the current instance precedes, follows, or occurs in the same position in the sort order as the
+        /// other object.
+        /// 
+        /// An object to compare with this instance.
+        /// 
+        /// A value that indicates the relative order of the objects being compared.
+        /// The return value has these meanings:
+        ///  Less than zero: This instance precedes  in the sort order.
+        ///  Zero: This instance occurs in the same position in the sort order as .
+        ///  Greater than zero: This instance follows  in the sort order.
+        /// 
+        /// The  is not a .
+        public int CompareTo(object obj)
+        {
+            return CompareTo((SemVersion)obj);
+        }
+
+        /// 
+        /// Compares the current instance with another object of the same type and returns an integer that indicates
+        /// whether the current instance precedes, follows, or occurs in the same position in the sort order as the
+        /// other object.
+        /// 
+        /// An object to compare with this instance.
+        /// 
+        /// A value that indicates the relative order of the objects being compared.
+        /// The return value has these meanings:
+        ///  Less than zero: This instance precedes  in the sort order.
+        ///  Zero: This instance occurs in the same position in the sort order as .
+        ///  Greater than zero: This instance follows  in the sort order.
+        /// 
+        public int CompareTo(SemVersion other)
+        {
+            var r = CompareByPrecedence(other);
+            if (r != 0) return r;
+
+#pragma warning disable CA1062 // Validate arguments of public methods
+            // If other is null, CompareByPrecedence() returns 1
+            return CompareComponent(Build, other.Build);
+#pragma warning restore CA1062 // Validate arguments of public methods
+        }
+
+        /// 
+        /// Returns whether two semantic versions have the same precedence. Versions
+        /// that differ only by build metadata have the same precedence.
+        /// 
+        /// The semantic version to compare to.
+        ///  if the version precedences are equal.
+        public bool PrecedenceMatches(SemVersion other)
+        {
+            return CompareByPrecedence(other) == 0;
+        }
+
+        /// 
+        /// Compares two semantic versions by precedence as defined in the SemVer spec. Versions
+        /// that differ only by build metadata have the same precedence.
+        /// 
+        /// The semantic version.
+        /// 
+        /// A value that indicates the relative order of the objects being compared.
+        /// The return value has these meanings:
+        ///  Less than zero: This instance precedes  in the sort order.
+        ///  Zero: This instance occurs in the same position in the sort order as .
+        ///  Greater than zero: This instance follows  in the sort order.
+        /// 
+        public int CompareByPrecedence(SemVersion other)
+        {
+            if (other is null)
+                return 1;
+
+            var r = Major.CompareTo(other.Major);
+            if (r != 0) return r;
+
+            r = Minor.CompareTo(other.Minor);
+            if (r != 0) return r;
+
+            r = Patch.CompareTo(other.Patch);
+            if (r != 0) return r;
+
+            return CompareComponent(Prerelease, other.Prerelease, true);
+        }
+
+        private static int CompareComponent(string a, string b, bool nonemptyIsLower = false)
+        {
+            var aEmpty = string.IsNullOrEmpty(a);
+            var bEmpty = string.IsNullOrEmpty(b);
+            if (aEmpty && bEmpty)
+                return 0;
+
+            if (aEmpty)
+                return nonemptyIsLower ? 1 : -1;
+            if (bEmpty)
+                return nonemptyIsLower ? -1 : 1;
+
+            var aComps = a.Split('.');
+            var bComps = b.Split('.');
+
+            var minLen = Math.Min(aComps.Length, bComps.Length);
+            for (int i = 0; i < minLen; i++)
+            {
+                var ac = aComps[i];
+                var bc = bComps[i];
+                var aIsNum = int.TryParse(ac, out var aNum);
+                var bIsNum = int.TryParse(bc, out var bNum);
+                int r;
+                if (aIsNum && bIsNum)
+                {
+                    r = aNum.CompareTo(bNum);
+                    if (r != 0) return r;
+                }
+                else
+                {
+                    if (aIsNum)
+                        return -1;
+                    if (bIsNum)
+                        return 1;
+                    r = string.CompareOrdinal(ac, bc);
+                    if (r != 0)
+                        return r;
+                }
+            }
+
+            return aComps.Length.CompareTo(bComps.Length);
+        }
+
+        /// 
+        /// Determines whether the specified  is equal to this instance.
+        /// 
+        /// The  to compare with this instance.
+        /// 
+        ///    if the specified  is equal to this instance, otherwise .
+        /// 
+        /// The  is not a .
+        public override bool Equals(object obj)
+        {
+            if (obj is null)
+                return false;
+
+            if (ReferenceEquals(this, obj))
+                return true;
+
+            var other = (SemVersion)obj;
+
+            return Major == other.Major
+                && Minor == other.Minor
+                && Patch == other.Patch
+                && string.Equals(Prerelease, other.Prerelease, StringComparison.Ordinal)
+                && string.Equals(Build, other.Build, StringComparison.Ordinal);
+        }
+
+        /// 
+        /// Returns a hash code for this instance.
+        /// 
+        /// 
+        /// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
+        /// 
+        public override int GetHashCode()
+        {
+            unchecked
+            {
+                // TODO verify this. Some versions start result = 17. Some use 37 instead of 31
+                int result = Major.GetHashCode();
+                result = result * 31 + Minor.GetHashCode();
+                result = result * 31 + Patch.GetHashCode();
+                result = result * 31 + Prerelease.GetHashCode();
+                result = result * 31 + Build.GetHashCode();
+                return result;
+            }
+        }
+
+#if !NETSTANDARD
+        /// 
+        /// Populates a  with the data needed to serialize the target object.
+        /// 
+        /// The  to populate with data.
+        /// The destination (see ) for this serialization.
+        [SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
+        public void GetObjectData(SerializationInfo info, StreamingContext context)
+        {
+            if (info == null) throw new ArgumentNullException(nameof(info));
+            info.AddValue("SemVersion", ToString());
+        }
+#endif
+
+#pragma warning disable CA2225 // Operator overloads have named alternates
+        /// 
+        /// Implicit conversion from  to .
+        /// 
+        /// The semantic version.
+        /// The  object.
+        /// The  is .
+        /// The version number has an invalid format.
+        /// The Major, Minor, or Patch versions are larger than int.MaxValue.
+        public static implicit operator SemVersion(string version)
+#pragma warning restore CA2225 // Operator overloads have named alternates
+        {
+            return Parse(version);
+        }
+
+        /// 
+        /// Compares two semantic versions for equality.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is equal to right , otherwise .
+        public static bool operator ==(SemVersion left, SemVersion right)
+        {
+            return Equals(left, right);
+        }
+
+        /// 
+        /// Compares two semantic versions for inequality.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is not equal to right , otherwise .
+        public static bool operator !=(SemVersion left, SemVersion right)
+        {
+            return !Equals(left, right);
+        }
+
+        /// 
+        /// Compares two semantic versions.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is greater than right , otherwise .
+        public static bool operator >(SemVersion left, SemVersion right)
+        {
+            return Compare(left, right) > 0;
+        }
+
+        /// 
+        /// Compares two semantic versions.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is greater than or equal to right , otherwise .
+        public static bool operator >=(SemVersion left, SemVersion right)
+        {
+            return Equals(left, right) || Compare(left, right) > 0;
+        }
+
+        /// 
+        /// Compares two semantic versions.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is less than right , otherwise .
+        public static bool operator <(SemVersion left, SemVersion right)
+        {
+            return Compare(left, right) < 0;
+        }
+
+        /// 
+        /// Compares two semantic versions.
+        /// 
+        /// The left value.
+        /// The right value.
+        /// If left is less than or equal to right , otherwise .
+        public static bool operator <=(SemVersion left, SemVersion right)
+        {
+            return Equals(left, right) || Compare(left, right) < 0;
+        }
+    }
+}
diff --git a/ModAssistant/ModAssistant.csproj b/ModAssistant/ModAssistant.csproj
index e8b9236..60c4b76 100644
--- a/ModAssistant/ModAssistant.csproj
+++ b/ModAssistant/ModAssistant.csproj
@@ -71,6 +71,8 @@
     
     
     
+    
+    
     
       Intro.xaml
     
@@ -250,7 +252,6 @@
   
     
   
-  
   
     
   
diff --git a/ModAssistant/Pages/Mods.xaml.cs b/ModAssistant/Pages/Mods.xaml.cs
index 549ae76..ae4af22 100644
--- a/ModAssistant/Pages/Mods.xaml.cs
+++ b/ModAssistant/Pages/Mods.xaml.cs
@@ -11,6 +11,7 @@ using System.Windows.Data;
 using System.Windows.Forms;
 using System.Windows.Navigation;
 using static ModAssistant.Http;
+using ModAssistant.Libs;
 
 namespace ModAssistant.Pages
 {
@@ -315,6 +316,9 @@ namespace ModAssistant.Pages
 
             foreach (Mod mod in ModsList)
             {
+                // Ignore mods that are newer than installed version
+                if (mod.ListItem.IsNewerVersionInstalled) continue;
+
                 if (mod.name.ToLower() == "bsipa")
                 {
                     MainWindow.Instance.MainText = $"{string.Format((string)FindResource("Mods:InstallingMod"), mod.name)}...";
@@ -531,16 +535,22 @@ namespace ModAssistant.Pages
 
             public Mod InstalledModInfo { get; set; }
             public bool IsInstalled { get; set; }
-            private string _installedVersion { get; set; }
+            private SemVersion _installedVersion { get; set; }
             public string InstalledVersion
             {
                 get
                 {
-                    return (string.IsNullOrEmpty(_installedVersion) || !IsInstalled) ? "-" : _installedVersion;
+                    return !IsInstalled ? "-" : _installedVersion.ToString();
                 }
                 set
                 {
-                    _installedVersion = value;
+                    if (value != null)
+                    {
+                        _installedVersion = SemVersion.Parse(value);
+                    } else
+                    {
+                        _installedVersion = null;
+                    }
                 }
             }
 
@@ -549,7 +559,7 @@ namespace ModAssistant.Pages
                 get
                 {
                     if (!IsInstalled) return "Black";
-                    return InstalledVersion == ModVersion ? "Green" : "Red";
+                    return _installedVersion >= ModVersion ? "Green" : "Red";
                 }
             }
 
@@ -558,7 +568,16 @@ namespace ModAssistant.Pages
                 get
                 {
                     if (!IsInstalled) return "None";
-                    return InstalledVersion == ModVersion ? "None" : "Strikethrough";
+                    return _installedVersion >= ModVersion ? "None" : "Strikethrough";
+                }
+            }
+
+            public bool IsNewerVersionInstalled
+            {
+                get
+                {
+                    if (!IsInstalled) return false;
+                    return _installedVersion > ModVersion;
                 }
             }
 
diff --git a/README.md b/README.md
index 301a7c4..e12fc6a 100644
--- a/README.md
+++ b/README.md
@@ -136,3 +136,6 @@ Examples:
 **I hit install but now my game won't launch, I can't click any buttons, I only see a black screen, etc**
   Please visit the [Beat Saber Modding Group](https://discord.gg/beatsabermods) `#pc-help` channels. Check the pinned messages or ask for help and see if you can work out things out.
   
+## Credits
+semver by Max Hauser
+https://github.com/maxhauser/semver