public static Path CalculateFullPath(Path currentLocation, Path changeCommand)
{
changeCommand = (changeCommand ?? string.Empty).NormalizeSlashes();
currentLocation = currentLocation.NormalizeSlashes();
bool applyParts = false;
Path resultPath;
// use the input 'changeCommand' path if it's
// 'rooted' otherwise we go from the currentLocation
if (changeCommand.HasDrive())
{
// windows case where changeCommand == "/" or "\" but the currentLocation has a "C:" drive
string currentLocationDrive = currentLocation.GetDrive();
if (changeCommand.StartsWithSlash() && !changeCommand.GetDrive().Equals(currentLocationDrive, StringComparison.InvariantCultureIgnoreCase))
{
resultPath = new Path(currentLocation.CorrectSlash, currentLocation.WrongSlash, string.Format("{0}:{1}", currentLocationDrive, changeCommand));
}
else
{
resultPath = changeCommand;
}
}
else
{
applyParts = true;
resultPath = currentLocation;
}
var correctSeparator = Char.Parse(currentLocation.CorrectSlash);
var changeParts = changeCommand.ToString().Split(correctSeparator).Where(s => !string.IsNullOrEmpty(s));
foreach (var part in changeParts)
{
// ignore single dot as it does nothing...
if (part == ".")
{
continue;
}
// ignore trying to go up a dir from the root dir
if (part == ".." && resultPath.IsRootPath())
{
continue;
}
if (part == "..")
{
resultPath = resultPath.GetParentPath(currentLocation.GetDrive());
}
else if (applyParts)
{
resultPath = resultPath.Combine(part);
}
}
return resultPath.ApplyDriveSlash();
}
public static Path CalculateFullPath(Path currentLocation, Path changeCommand)
{
changeCommand = (changeCommand ?? string.Empty).NormalizeSlashes();
currentLocation = currentLocation.NormalizeSlashes();
bool applyParts = false;
Path resultPath;
// use the input 'changeCommand' path if it's
// 'rooted' otherwise we go from the currentLocation
if (changeCommand.HasDrive())
{
// windows case where changeCommand == "/" or "\" but the currentLocation has a "C:" drive
string currentLocationDrive = currentLocation.GetDrive();
if (changeCommand.StartsWithSlash() && !changeCommand.GetDrive().Equals(currentLocationDrive, StringComparison.InvariantCultureIgnoreCase))
{
resultPath = new Path(currentLocation.CorrectSlash, currentLocation.WrongSlash, string.Format("{0}:{1}", currentLocationDrive, changeCommand));
}
else
{
resultPath = changeCommand;
}
}
else
{
applyParts = true;
resultPath = currentLocation;
}
var correctSeparator = Char.Parse(currentLocation.CorrectSlash);
var changeParts = changeCommand.ToString().Split(correctSeparator).Where(s => !string.IsNullOrEmpty(s));
foreach (var part in changeParts)
{
// ignore single dot as it does nothing...
if (part == ".")
{
continue;
}
// ignore trying to go up a dir from the root dir
if (part == ".." && resultPath.IsRootPath())
{
continue;
}
if (part == "..")
{
resultPath = resultPath.GetParentPath(currentLocation.GetDrive());
}
else if (applyParts)
{
resultPath = resultPath.Combine(part);
}
}
return(resultPath.ApplyDriveSlash());
}
private PSDriveInfo GetDrive(Path path)
{
string driveName = path.GetDrive();
if (!string.IsNullOrEmpty(driveName))
{
return _executionContext.SessionState.Drive.Get(driveName);
}
return null;
}
private Path GetDriveOrThrow(Path path)
{
string drive = path.GetDrive();
if (drive != null)
{
return drive + ":";
}
throw new FormatException(string.Format("Cannot parse path because path '{0}' does not have a qualifier specified.", path));
}
private CmdletProvider GetProviderByPath(Path path)
{
// MUST: implement for "dir"
if (string.IsNullOrEmpty(path))
path = CurrentLocation.Path;
string driveName = path.GetDrive();
PSDriveInfo drive = GetDrive(driveName);
if (drive == null)
{
drive = CurrentLocation.Drive;
}
if (drive == null)
return null;
return GetProviderInstance(drive.Provider.Name);
}
