You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
244 lines
12 KiB
244 lines
12 KiB
using System;
|
|
using System.Collections.Generic;
|
|
using Version = SemVer.Version;
|
|
|
|
namespace IPA.Utilities
|
|
{
|
|
/// <summary>
|
|
/// A type that wraps <see cref="Version"/> so that the string of the version is stored when the string is
|
|
/// not a valid <see cref="Version"/>.
|
|
/// </summary>
|
|
public class AlmostVersion : IComparable<AlmostVersion>, IComparable<Version>
|
|
{
|
|
/// <summary>
|
|
/// Represents a storage type of either parsed <see cref="Version"/> object or raw <see cref="String"/>.
|
|
/// </summary>
|
|
public enum StoredAs
|
|
{
|
|
/// <summary>
|
|
/// The version was stored as a <see cref="Version"/>.
|
|
/// </summary>
|
|
SemVer,
|
|
/// <summary>
|
|
/// The version was stored as a <see cref="String"/>.
|
|
/// </summary>
|
|
String
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new <see cref="AlmostVersion"/> with the version string provided in <paramref name="vertext"/>.
|
|
/// </summary>
|
|
/// <param name="vertext">the version string to store</param>
|
|
public AlmostVersion(string vertext)
|
|
{
|
|
if (!TryParseFrom(vertext, StoredAs.SemVer))
|
|
TryParseFrom(vertext, StoredAs.String);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates an <see cref="AlmostVersion"/> from the <see cref="Version"/> provided in <paramref name="ver"/>.
|
|
/// </summary>
|
|
/// <param name="ver">the <see cref="Version"/> to store</param>
|
|
public AlmostVersion(Version ver)
|
|
{
|
|
SemverValue = ver;
|
|
StorageMode = StoredAs.SemVer;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates an <see cref="AlmostVersion"/> from the version string in <paramref name="vertext"/> stored using
|
|
/// the storage mode specified in <paramref name="mode"/>.
|
|
/// </summary>
|
|
/// <param name="vertext">the text to parse as an <see cref="AlmostVersion"/></param>
|
|
/// <param name="mode">the storage mode to store the version in</param>
|
|
public AlmostVersion(string vertext, StoredAs mode)
|
|
{
|
|
if (!TryParseFrom(vertext, mode))
|
|
throw new ArgumentException($"{nameof(vertext)} could not be stored as {mode}!");
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new <see cref="AlmostVersion"/> from the version string in <paramref name="vertext"/> stored the
|
|
/// same way as the <see cref="AlmostVersion"/> passed in <paramref name="copyMode"/>.
|
|
/// </summary>
|
|
/// <param name="vertext">the text to parse as an <see cref="AlmostVersion"/></param>
|
|
/// <param name="copyMode">an <see cref="AlmostVersion"/> to copy the storage mode of</param>
|
|
public AlmostVersion(string vertext, AlmostVersion copyMode)
|
|
{
|
|
if (copyMode == null)
|
|
throw new ArgumentNullException(nameof(copyMode));
|
|
|
|
if (!TryParseFrom(vertext, copyMode.StorageMode))
|
|
throw new ArgumentException($"{nameof(vertext)} could not be stored the same way as {copyMode}!");
|
|
}
|
|
|
|
private bool TryParseFrom(string str, StoredAs mode)
|
|
{
|
|
if (mode == StoredAs.SemVer)
|
|
try
|
|
{
|
|
SemverValue = new Version(str, true);
|
|
StorageMode = StoredAs.SemVer;
|
|
return true;
|
|
}
|
|
catch
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
StringValue = str;
|
|
StorageMode = StoredAs.String;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// The value of the <see cref="AlmostVersion"/> if it was stored as a <see cref="string"/>.
|
|
/// </summary>
|
|
/// <value>the stored value as a <see cref="string"/>, or <see langword="null"/> if not stored as a string.</value>
|
|
public string StringValue { get; private set; } = null;
|
|
|
|
/// <summary>
|
|
/// The value of the <see cref="AlmostVersion"/> if it was stored as a <see cref="Version"/>.
|
|
/// </summary>
|
|
/// <value>the stored value as a <see cref="Version"/>, or <see langword="null"/> if not stored as a version.</value>
|
|
public Version SemverValue { get; private set; } = null;
|
|
|
|
/// <summary>
|
|
/// The way the value is stored, whether it be as a <see cref="Version"/> or a <see cref="string"/>.
|
|
/// </summary>
|
|
/// <value>the storage mode used to store this value</value>
|
|
public StoredAs StorageMode { get; private set; }
|
|
|
|
// can I just <inheritdoc /> this?
|
|
/// <summary>
|
|
/// Gets a string representation of the current version. If the value is stored as a string, this returns it. If it is
|
|
/// stored as a <see cref="Version"/>, it is equivalent to calling <see cref="Version.ToString"/>.
|
|
/// </summary>
|
|
/// <returns>a string representation of the current version</returns>
|
|
/// <seealso cref="object.ToString"/>
|
|
public override string ToString() =>
|
|
StorageMode == StoredAs.SemVer ? SemverValue.ToString() : StringValue;
|
|
|
|
/// <summary>
|
|
/// Compares <see langword="this"/> to the <see cref="AlmostVersion"/> in <paramref name="other"/> using <see cref="Version.CompareTo(Version)"/>
|
|
/// or <see cref="string.CompareTo(string)"/>, depending on the current store.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// The storage methods of the two objects must be the same, or this will throw an <see cref="InvalidOperationException"/>.
|
|
/// </remarks>
|
|
/// <param name="other">the <see cref="AlmostVersion"/> to compare to</param>
|
|
/// <returns>less than 0 if <paramref name="other"/> is considered bigger than <see langword="this"/>, 0 if equal, and greater than zero if smaller</returns>
|
|
/// <seealso cref="CompareTo(Version)"/>
|
|
public int CompareTo(AlmostVersion other)
|
|
{
|
|
if (other == null) return -1;
|
|
if (StorageMode != other.StorageMode)
|
|
throw new InvalidOperationException("Cannot compare AlmostVersions with different stores!");
|
|
|
|
if (StorageMode == StoredAs.SemVer)
|
|
return SemverValue.CompareTo(other.SemverValue);
|
|
else
|
|
return StringValue.CompareTo(other.StringValue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares <see langword="this"/> to the <see cref="Version"/> in <paramref name="other"/> using <see cref="Version.CompareTo(Version)"/>.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// The storage method of <see langword="this"/> must be <see cref="StoredAs.SemVer"/>, else an <see cref="InvalidOperationException"/> will
|
|
/// be thrown.
|
|
/// </remarks>
|
|
/// <param name="other">the <see cref="Version"/> to compare to</param>
|
|
/// <returns>less than 0 if <paramref name="other"/> is considered bigger than <see langword="this"/>, 0 if equal, and greater than zero if smaller</returns>
|
|
/// <seealso cref="CompareTo(AlmostVersion)"/>
|
|
public int CompareTo(Version other)
|
|
{
|
|
if (StorageMode != StoredAs.SemVer)
|
|
throw new InvalidOperationException("Cannot compare a SemVer version with an AlmostVersion stored as a string!");
|
|
|
|
return SemverValue.CompareTo(other);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs a strict equality check between <see langword="this"/> and <paramref name="obj"/>.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This may return <see langword="false"/> where <see cref="operator ==(AlmostVersion, AlmostVersion)"/> returns <see langword="true"/>
|
|
/// </remarks>
|
|
/// <param name="obj">the object to compare to</param>
|
|
/// <returns><see langword="true"/> if they are equal, <see langword="false"/> otherwise</returns>
|
|
/// <seealso cref="object.Equals(object)"/>
|
|
public override bool Equals(object obj)
|
|
{
|
|
return obj is AlmostVersion version &&
|
|
SemverValue == version.SemverValue &&
|
|
StringValue == version.StringValue &&
|
|
StorageMode == version.StorageMode;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Default generated hash code function generated by VS.
|
|
/// </summary>
|
|
/// <returns>a value unique to each object, except those that are considered equal by <see cref="Equals(object)"/></returns>
|
|
/// <seealso cref="object.GetHashCode"/>
|
|
public override int GetHashCode()
|
|
{
|
|
var hashCode = -126402897;
|
|
hashCode = hashCode * -1521134295 + EqualityComparer<Version>.Default.GetHashCode(SemverValue);
|
|
hashCode = hashCode * -1521134295 + EqualityComparer<string>.Default.GetHashCode(StringValue);
|
|
hashCode = hashCode * -1521134295 + StorageMode.GetHashCode();
|
|
return hashCode;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two versions, only taking into account the numeric part of the version if they are stored as <see cref="Version"/><see langword="sealed"/>,
|
|
/// or strict equality if they are stored as <see cref="string"/>s.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This is a looser equality than <see cref="Equals(object)"/>, meaning that this may return <see langword="true"/> where <see cref="Equals(object)"/>
|
|
/// does not.
|
|
/// </remarks>
|
|
/// <param name="l">the first value to compare</param>
|
|
/// <param name="r">the second value to compare</param>
|
|
/// <returns><see langword="true"/> if they are mostly equal, <see langword="false"/> otherwise</returns>
|
|
/// <seealso cref="Equals(object)"/>
|
|
public static bool operator==(AlmostVersion l, AlmostVersion r)
|
|
{
|
|
if (ReferenceEquals(l, null) && ReferenceEquals(r, null)) return true;
|
|
if (ReferenceEquals(l, null) || ReferenceEquals(r, null)) return false;
|
|
if (l.StorageMode != r.StorageMode) return false;
|
|
if (l.StorageMode == StoredAs.SemVer)
|
|
return Utils.VersionCompareNoPrerelease(l.SemverValue, r.SemverValue) == 0;
|
|
else
|
|
return l.StringValue == r.StringValue;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The opposite of <see cref="operator ==(AlmostVersion, AlmostVersion)"/>. Equivalent to <code>!(l == r)</code>.
|
|
/// </summary>
|
|
/// <param name="l">the first value to compare</param>
|
|
/// <param name="r">the second value to compare</param>
|
|
/// <returns><see langword="true"/> if they are not mostly equal, <see langword="false"/> otherwise</returns>
|
|
/// <seealso cref="operator ==(AlmostVersion, AlmostVersion)"/>
|
|
public static bool operator!=(AlmostVersion l, AlmostVersion r) => !(l == r);
|
|
|
|
// implicitly convertible from Version
|
|
/// <summary>
|
|
/// Implicitly converts a <see cref="Version"/> to <see cref="AlmostVersion"/> using <see cref="AlmostVersion(Version)"/>.
|
|
/// </summary>
|
|
/// <param name="ver">the <see cref="Version"/> to convert</param>
|
|
/// <seealso cref="AlmostVersion(Version)"/>
|
|
public static implicit operator AlmostVersion(Version ver) => new AlmostVersion(ver);
|
|
|
|
// implicitly convertible to Version
|
|
/// <summary>
|
|
/// Implicitly converts an <see cref="AlmostVersion"/> to <see cref="Version"/>, if applicable, using <see cref="SemverValue"/>.
|
|
/// If not applicable, returns <see langword="null"/>
|
|
/// </summary>
|
|
/// <param name="av">the <see cref="AlmostVersion"/> to convert to a <see cref="Version"/></param>
|
|
/// <seealso cref="SemverValue"/>
|
|
public static implicit operator Version(AlmostVersion av) => av?.SemverValue;
|
|
}
|
|
}
|