Concatenate order

[rgroenewoudt]

I would like support for ordering when concatenating files. I still have old Javascript files in which the order is important.

Something like: .Concatenate(path=> path.Contains("module.js") ? 2 : 1)

The Concatenator class can be modified to use:

internal class Concatenator : Processor
{

private Func<int>? _pathPriorityFunc = null;
public Concatenator(Func<int>? pathPriorityFunc = null)
{
_pathPriorityFunc = pathPriorityFunc;
}

public override Task ExecuteAsync(IAssetContext context)
        {
            var sb = new StringBuilder();

            var keys = _pathPriorityFunc != null ? context.Content.Keys.Order(Comparer<string>.Create(Compare)) : context.Content.Keys;
            foreach (var k in keys)
            {
                sb.AppendLine(context.Content[k].AsString());
            }
....

private static int Compare(string x, string y)
{
    int prioX = _pathPriorityFunc(x);
    int prioY = _pathPriorityFunc(y);

    if (prioX < prioY)
        return -1;
    if (prioX > prioY)
        return 1;

    return 0;
}