private static void ValidateFlags(PathFlags flags)
{
if (flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
throw new ArgumentException("A path cannot have the UseDefaultsForGivenPath flag set.");
if (flags.HasFlag(PathFlags.UseDefaultsFromUtility))
throw new ArgumentException("A path cannot have the UseDefaultsFromUtility flag set.");
}
private static void ValidateFlags(PathFlags flags)
{
if (flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
{
throw new ArgumentException("A path cannot have the UseDefaultsForGivenPath flag set.");
}
if (flags.HasFlag(PathFlags.UseDefaultsFromUtility))
{
throw new ArgumentException("A path cannot have the UseDefaultsFromUtility flag set.");
}
}
public bool GetFullPath(Source src, string dir, ref string path, PathFlags flags = 0)
{
if (string.IsNullOrEmpty(path))
{
if (flags.HasFlag(PathFlags.AllowNonExistingPath))
{
return(true);
}
Log.Error(src, null, "Expected non-empty path");
return(false);
}
if (!path.IsValidPath())
{
Log.Error(src, null, "Invalid path " + path.Quote());
return(false);
}
var isAbsolute = Path.IsPathRooted(path);
if (!isAbsolute && path.Contains('\\'))
{
Log.Warning(src, null, "Inconsistent separators in path " + path.Quote() + ". In Uno, paths should be separated using '/'");
}
if (isAbsolute && !flags.HasFlag(PathFlags.AllowAbsolutePath))
{
Log.Warning(src, null, "Absolute path " + path.Quote() + ". In Uno, paths should be relative to specifying file");
}
path = path.StartsWith("@//", StringComparison.InvariantCulture)
? path.Substring(3).UnixToNative().ToFullPath(src.Package.SourceDirectory)
: path.UnixToNative().ToFullPath(dir);
if (flags.HasFlag(PathFlags.AllowNonExistingPath))
{
return(true);
}
if (!flags.HasFlag(PathFlags.IsDirectory) && !File.Exists(path) ||
flags.HasFlag(PathFlags.IsDirectory) && !Directory.Exists(path))
{
var msg = (flags.HasFlag(PathFlags.IsDirectory) ? "Directory" : "File") + " " + path.Quote() + " does not exist";
if (flags.HasFlag(PathFlags.WarnIfNonExistingPath))
{
Log.Warning(src, null, msg);
}
else
{
Log.Error(src, null, msg);
}
return(false);
}
return(true);
}
public static bool TryParsePathSpec(string path, out PathSpec pathSpec, out string error, PathFlags flags = PathFlags.UseDefaultsForGivenPath)
{
if (flags.HasFlag(PathFlags.UseDefaultsFromUtility) && flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
throw new ArgumentException("Cannot specify both PathFlags.UseDefaultsFromUtility and PathFlags.UseDefaultsForGivenPath");
if (flags.HasFlag(PathFlags.UseDefaultsFromUtility))
flags = GetDefaultFlagsForThisEnvironment();
error = string.Empty;
pathSpec = null;
var isWindowsStyle = path.Contains("\\") || path.Contains(":");
var isUnixStyle = path.Contains("/");
if (isWindowsStyle && isUnixStyle)
{
error = "Cannot mix slashes and backslashes in the same path";
return false;
}
if (isWindowsStyle)
{
if (flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
flags = PathFlags.None;
if (path.Length > 1 && path.EndsWith("\\"))
path = path.Substring(0, path.Length - 1);
var colonIdx = path.LastIndexOf(':');
if (colonIdx > -1 && (colonIdx != 1 || !char.IsLetter(path[0]) || (path.Length > 2 && path[2] != '\\')))
{
error = "A Windows path may not contain a : character, except as part of the drive specifier.";
return false;
}
var isAbsolute = path.IsAbsoluteWindowsPath();
if (isAbsolute)
{
var components = path.Split('\\').ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "\\", components);
}
else if (path.StartsWith("."))
{
var components = path.Split('\\').ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "\\", components);
}
else if (path.StartsWith("\\\\"))
{
var components = "\\\\".ItemConcat(path.Substring(2).Split('\\')).ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "\\", components);
}
else if (path.StartsWith("\\"))
{
var components = "\\".ItemConcat(path.Substring(1).Split('\\')).ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "\\", components);
}
else
{
var components = ".".ItemConcat(path.Split('\\')).ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "\\", components);
}
return true;
}
if (isUnixStyle)
{
if (flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
flags = PathFlags.CaseSensitive;
if (path.Length > 1 && path.EndsWith("/"))
path = path.Substring(0, path.Length - 1);
if (path.Contains(":"))
{
error = "A Unix path may not contain a : character.";
return false;
}
var isAbsolute = path.IsAbsoluteUnixPath();
if (isAbsolute)
{
var components = "/".ItemConcat(path.Substring(1).Split('/')).ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "/", components);
}
else if (path.StartsWith("."))
{
var components = path.Split('/').ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "/", components);
}
else
{
var components = ".".ItemConcat(path.Split('/')).ToList();
components.RemoveWhere((i, str) => i != 0 && str == ".");
if (components.Any(String.IsNullOrEmpty))
{
error = "Must not contain any directories that have empty names";
return false;
}
if (components.IsAncestorOfRoot())
{
error = "Must not point to an ancestor of the filesystem root";
return false;
}
pathSpec = new PathSpec(flags, "/", components);
}
return true;
}
// If we reach this point, there are no backslashes or slashes in the path, meaning that it's a
// path with one element.
if (flags.HasFlag(PathFlags.UseDefaultsForGivenPath))
flags = GetDefaultFlagsForThisEnvironment();
if (path == ".." || path == ".")
pathSpec = new PathSpec(flags, DefaultDirectorySeparator, path);
else
pathSpec = new PathSpec(flags, DefaultDirectorySeparator, ".", path);
return true;
}