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ConditionalHashEquals is fun

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This commit is contained in:
Matt Nadareski
2023-08-14 18:43:56 -04:00
parent 5b89d382a7
commit 9a41d16e58
5 changed files with 55 additions and 56 deletions
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20
SabreTools.DatItems/DatItem.cs
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@@ -399,26 +399,6 @@ namespace SabreTools.DatItems
#region Sorting and Merging
/// <summary>
/// Determine if two hashes are equal for the purposes of merging
/// </summary>
/// <param name="firstHash">First hash to compare</param>
/// <param name="secondHash">Second hash to compare</param>
/// <returns>True if either is empty OR the hashes exactly match, false otherwise</returns>
public static bool ConditionalHashEquals(byte[]? firstHash, byte[]? secondHash)
{
// If either hash is empty, we say they're equal for merging
if (firstHash.IsNullOrEmpty() || secondHash.IsNullOrEmpty())
return true;
// If they're different sizes, they can't match
if (firstHash!.Length != secondHash!.Length)
return false;
// Otherwise, they need to match exactly
return Enumerable.SequenceEqual(firstHash, secondHash);
}
/// <summary>
/// Merge an arbitrary set of ROMs based on the supplied information
/// </summary>