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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.WindowsInstaller.Bind
{
using System;
using System.Collections.Generic;
using System.IO;
using WixToolset.Data;
internal static class PathResolver
{
/// <summary>
/// Get the source path of a directory.
/// </summary>
/// <param name="directories">All cached directories.</param>
/// <param name="componentIdGenSeeds">Hash table of Component GUID generation seeds indexed by directory id.</param>
/// <param name="directory">Directory identifier.</param>
/// <param name="canonicalize">Canonicalize the path for standard directories.</param>
/// <returns>Source path of a directory.</returns>
public static string GetDirectoryPath(Dictionary<string, ResolvedDirectory> directories, Dictionary<string, string> componentIdGenSeeds, string directory, bool canonicalize)
{
if (!directories.TryGetValue(directory, out var resolvedDirectory))
{
throw new WixException(ErrorMessages.ExpectedDirectory(directory));
}
if (null == resolvedDirectory.Path)
{
if (null != componentIdGenSeeds && componentIdGenSeeds.ContainsKey(directory))
{
resolvedDirectory.Path = (string)componentIdGenSeeds[directory];
}
else if (canonicalize && WindowsInstallerStandard.IsStandardDirectory(directory))
{
// when canonicalization is on, standard directories are treated equally
resolvedDirectory.Path = directory;
}
else
{
string name = resolvedDirectory.Name;
if (canonicalize)
{
name = name?.ToLowerInvariant();
}
if (String.IsNullOrEmpty(resolvedDirectory.DirectoryParent))
{
resolvedDirectory.Path = name;
}
else
{
string parentPath = GetDirectoryPath(directories, componentIdGenSeeds, resolvedDirectory.DirectoryParent, canonicalize);
if (null != resolvedDirectory.Name)
{
resolvedDirectory.Path = Path.Combine(parentPath, name);
}
else
{
resolvedDirectory.Path = parentPath;
}
}
}
}
return resolvedDirectory.Path;
}
/// <summary>
/// Gets the source path of a file.
/// </summary>
/// <param name="directories">All cached directories in <see cref="ResolvedDirectory"/>.</param>
/// <param name="directoryId">Parent directory identifier.</param>
/// <param name="fileName">File name (in long|source format).</param>
/// <param name="compressed">Specifies the package is compressed.</param>
/// <param name="useLongName">Specifies the package uses long file names.</param>
/// <returns>Source path of file relative to package directory.</returns>
public static string GetFileSourcePath(Dictionary<string, ResolvedDirectory> directories, string directoryId, string fileName, bool compressed, bool useLongName)
{
string fileSourcePath = Common.GetName(fileName, true, useLongName);
if (compressed)
{
// Use just the file name of the file since all uncompressed files must appear
// in the root of the image in a compressed package.
}
else
{
// Get the relative path of where we want the file to be layed out as specified
// in the Directory table.
string directoryPath = PathResolver.GetDirectoryPath(directories, null, directoryId, false);
fileSourcePath = Path.Combine(directoryPath, fileSourcePath);
}
// Strip off "SourceDir" if it's still on there.
if (fileSourcePath.StartsWith("SourceDir\\", StringComparison.Ordinal))
{
fileSourcePath = fileSourcePath.Substring(10);
}
return fileSourcePath;
}
}
}
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