GenBuildInfo.ps1

param($ConfigHashFile, $ConfigFile);

Write-Host "Putting default config hash into file '$ConfigHashFile'.";

$HashObj = New-Object -TypeName 'System.Security.Cryptography.MD5CryptoServiceProvider';
$FileStream = [System.IO.File]::Open((Resolve-Path $ConfigFile), [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::ReadWrite);
try
{
    [byte[]] $HashBytes = $HashObj.ComputeHash($FileStream);
    $HexBuilder = [System.Text.StringBuilder]::new($HashBytes.Length * 6);
    foreach($b in $HashBytes) { $HexBuilder.AppendFormat('0x{0:X2}, ', $b) | Out-Null }
    $HexBuilder.Remove($HexBuilder.Length - 2, 2);
    [string] $Hash = $HexBuilder.ToString();
}
finally { $FileStream.Dispose(); }

Write-Host "Default config file MD5 is $Hash";

$Class = 
@"
using System;
namespace ColorChord.NET.Config;
// This file is auto-generated by GenBuildInfo.ps1.
internal static class DefaultConfigInfo
{
    internal static ReadOnlySpan<byte> DefaultConfigFileMD5 => [$Hash];
}
"@

Set-Content -Path $ConfigHashFile -Value $Class;