static int CheckFile(string filename, CommandLineOptions options, FileType fileType)
{
var fileContents = File.ReadAllLines(filename);
if (Enumerable.SequenceEqual(options.CopyrightBanner[fileType], fileContents.Take(options.CopyrightBanner[fileType].Length)))
{
// This file already has the correct copyright.
return 0;
}
else
{
if (options.Validate)
{
// Just report that the copyright does not match.
Console.WriteLine("Error: Wrong copyright: {0}", options.GetRelativeName(filename));
}
else
{
// Find any existing copyright.
var existingCopyright = fileType.GetExistingCopyrightBanner(fileContents);
if (options.PreviousCopyrightBanner != null && !Enumerable.SequenceEqual(existingCopyright, options.PreviousCopyrightBanner[fileType]))
{
// Warn if what we tried to overwrite doesn't match the expected previous (then don't actually edit anything).
Console.WriteLine("Warning: Skipping {0}: doesn't match previous copyright", options.GetRelativeName(filename));
}
else
{
// Remove the old copyright.
var withoutOldCopyright = fileContents.Skip(existingCopyright.Count());
// Insert the new copyright.
var withNewCopyright = options.CopyrightBanner[fileType].Concat(withoutOldCopyright);
// Write out the new file.
Console.WriteLine("Warning: Updating copyright: {0}", options.GetRelativeName(filename));
File.WriteAllLines(filename, withNewCopyright);
}
}
return 1;
}
}