public static void TransformFile(string hostsFile, params Func <IEnumerable <string>, IEnumerable <string> >[] transforms)
{
var encoding = HostsFileUtil.GetEncoding(hostsFile);
IEnumerable <string> contents = File.ReadAllLines(hostsFile);
foreach (var transform in transforms)
{
contents = transform(contents);
}
File.WriteAllLines(hostsFile, contents.ToArray(), encoding);
}
private static Func <IEnumerable <string>, IEnumerable <string> > GetRemoveTransform(Func <string, bool> doHostsMatch)
{
return(lines => lines.Where(l =>
{
var match = HostsFileUtil.TryGetHostsFileEntry(l);
if (match == null)
{
return true;
}
var matchedHost = match.Hostname;
if (!doHostsMatch(matchedHost))
{
return true;
}
else
{
return false;
}
}));
}