/// <summary>
/// Checks whether the file is of the desired kind for a program.
/// </summary>
/// <param name="fileKind">The kind of file to look for.</param>
/// <param name="filePath">The file to check.</param>
/// <param name="rootFile">When not null or empty, require the file name of the given file path to begin with this value.</param>
/// <returns><c>true</c> if the file is a ROM file or a support file for the given root file.</returns>
public static bool IsProgramSupportFile(this ProgramFileKind fileKind, string filePath, string rootFile)
{
// First, check if file is in the blacklist.
if (!string.IsNullOrEmpty(filePath) && _romFileBlacklist.Contains(Path.GetFileName(filePath), PathComparer.Instance))
{
return(false);
}
// Now, check if it has appropriate extension. If rootFile is not null or empty, check that FilePath has the same 'base name'.
var hasExpectedExtension = fileKind.HasCorrectExtension(filePath);
var hasCustomRomExtension = !hasExpectedExtension && fileKind.HasCustomRomExtension(filePath);
if (hasCustomRomExtension)
{
DebugOutput("We have a custom extension!");
}
// Don't care about case sensitivity of file system.
bool isProgramFile = (hasExpectedExtension || hasCustomRomExtension) && (string.IsNullOrEmpty(rootFile) || Path.GetFileName(filePath).StartsWith(Path.GetFileNameWithoutExtension(rootFile), StringComparison.InvariantCultureIgnoreCase));
if (isProgramFile)
{
// Check if file name has proper suffix. Don't care about case sensitivity of file system.
var suffix = fileKind.GetSuffix();
isProgramFile = string.IsNullOrEmpty(suffix) || Path.GetFileNameWithoutExtension(filePath).EndsWith(suffix, StringComparison.InvariantCultureIgnoreCase);
if (!isProgramFile)
{
// Check if it's in a proper directory.
var subdirectoriesForFile = fileKind.GetSubdirectories();
isProgramFile = !subdirectoriesForFile.Any() || subdirectoriesForFile.Contains(Path.GetFileName(Path.GetDirectoryName(filePath)), PathComparer.Instance);
}
}
return(isProgramFile);
}
public void ProgramFileKind_HasCustomRomExtensionForEmptyPath_ReturnsFalseExceptForRomKind(ProgramFileKind fileKind)
{
var expectedResult = fileKind == ProgramFileKind.Rom;
Assert.Equal(expectedResult, fileKind.HasCustomRomExtension(string.Empty));
}
public void ProgramFileKind_HasCustomRomExtensionForNullPath_ReturnsFalse(ProgramFileKind fileKind)
{
Assert.False(fileKind.HasCustomRomExtension(null));
}