/// <summary>
/// Adds all files in a single directory to a fileListsByAssetType
/// </summary>
/// <param name="fileListsByAssetType"></param>
/// <param name="dirPath"></param>
private void AddRequiredFilesSingleDirectory(FileListsByAssetType fileListsByAssetType, AssetPath dirPath)
{
string absolutePath = dirPath.AbsolutePath;
IEnumerable<string> filePaths = Directory.EnumerateFiles(absolutePath);
// Need to first process the nuspec files, and then the asset files.
// This because the asset files may depend on the files pointed at by the nuspec files.
for (int i = 0; i < 2; i++)
{
foreach (string filePath in filePaths)
{
if (i == 0)
{
if (NuspecFile.IsNuspecFile(filePath))
{
fileListsByAssetType.Append(GetDependencies(filePath, dirPath));
}
}
else
{
AssetType? assetType = AssetTypeOfFile(filePath);
if (assetType != null)
{
fileListsByAssetType.Add(dirPath.AbsolutePathToAssetPath(filePath), assetType.Value);
}
}
}
}
}
/// <summary>
/// Adds a directory with assets (script files, etc.) to the stored list of asset directories.
/// </summary>
/// <param name="dirPath"></param>
public static void AddAssetDirectory(AssetPath dirPath)
{
List<AssetPath> assetDirectoryList = (List<AssetPath>)HttpContext.Current.Items[AssetDirectoryItemKey];
if (assetDirectoryList == null)
{
assetDirectoryList = new List<AssetPath>();
HttpContext.Current.Items[AssetDirectoryItemKey] = assetDirectoryList;
}
assetDirectoryList.Add(dirPath);
}
/// <summary>
/// Same as GetRequiredFilesForDirectory, but uncached.
/// </summary>
/// <param name="dirPath">
/// Path to the directory.
/// </param>
/// <returns></returns>
private FileListsByAssetType GetRequiredFilesForDirectoryUnchached(AssetPath dirPath)
{
FileListsByAssetType fileListsByAssetType = new FileListsByAssetType();
// Note: parentDirs will contain dirPath itself.
//
// dirPath.ParentDirs will give you something like
// ~/Views/Shared/EditorTemplates/HomeAddress
// ~/Views/Shared/EditorTemplates
// ~/Views/Shared
// However, the longer directory tends to have the more specific files. If there is a dependency between files in these
// directories, it would be from more specific to less specific, not the other way around. So process the directories in
// reverse order, so CSS and JS files in more common directories are loaded first.
IEnumerable <AssetPath> parentDirs = dirPath.ParentDirs("Views").Reverse();
foreach (AssetPath parentDir in parentDirs)
{
AddRequiredFilesSingleDirectory(fileListsByAssetType, parentDir);
}
return(fileListsByAssetType);
}
/// <summary>
/// Takes a file path and returns a string formatted like this:
///
/// * files with no Area, with controller Shared, and that live in a directory with a name starting with _Layout:
/// @___@
///
/// * files with no Area, with controller Shared, but don't live in a directory with a name starting with _Layout:
/// @___@@
///
/// * files with an Area, with controller Shared, and that live in a directory with a name starting with _Layout:
/// [Area]___@
///
/// * files with an Area, with controller Shared, but don't live in a directory with a name starting with _Layout:
/// [Area]___@@
///
/// * all other files, with no area
/// @___[Controller]
///
/// * all other files, with an area
/// [Area]___[Controller]
///
/// Note that alphabetically, @ sorts before any letter or digit.
/// Also, @___@@ sorts after @___@.
///
/// The method assumes that the file path is root relative, and follows MVC conventions:
///
/// * path with an Area:
/// ~/Areas/TestArea/Views/home/index/indexspecific.css
///
/// * path without an Area:
/// ~/Views/home/index/indexspecific.css
///
/// If the file path doesn't adhere to this, the method returns
/// @
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string FilePathSortKey(AssetPath assetPath)
{
string filePath = assetPath.RootRelativePath;
if (!filePath.StartsWith("~/"))
{
throw new Exception(string.Format("FilePathSortKey - filePath {0} does not start with ~/", filePath));
}
string[] filePathComponents = filePath.Split(new char[] { '/' });
// Note that the first element in filePathComponents will be the ~
// The last element is the file name itself.
string area = "@";
int nbrComponents = filePathComponents.Length;
int controllerIdx = 2;
if (string.CompareOrdinal(filePathComponents[1], "Areas") == 0)
{
if ((nbrComponents < 6) || (string.CompareOrdinal(filePathComponents[3], "Views") != 0))
{
return "@";
}
area = filePathComponents[2];
controllerIdx = 4;
}
else if (string.CompareOrdinal(filePathComponents[1], "Views") == 0)
{
if (nbrComponents < 4)
{
return "@";
}
}
else
{
return "@";
}
string controller = filePathComponents[controllerIdx];
if (string.CompareOrdinal(controller, "Shared") == 0)
{
controller = "@";
}
string postfix = "@";
int postControllerDirectoryIdx = (controllerIdx + 1);
if (nbrComponents > postControllerDirectoryIdx)
{
string postControllerDirectory = filePathComponents[postControllerDirectoryIdx].ToLower();
if (postControllerDirectory.StartsWith("_layout"))
{
postfix = "";
}
}
string sortKey = area + "___" + controller + postfix;
return sortKey;
}
/// <summary>
/// Adds all files in a single directory to a fileListsByAssetType
/// </summary>
/// <param name="fileListsByAssetType"></param>
/// <param name="dirPath"></param>
private void AddRequiredFilesSingleDirectory(FileListsByAssetType fileListsByAssetType, AssetPath dirPath)
{
string absolutePath = dirPath.AbsolutePath;
string[] filePaths = Directory.EnumerateFiles(absolutePath).ToArray();
// Need to first process the nuspec files, and then the asset files.
// This because the asset files may depend on the files pointed at by the nuspec files.
for (int i = 0; i < 2; i++)
{
foreach (string filePath in filePaths)
{
if (i == 0)
{
if (NuspecFile.IsNuspecFile(filePath))
{
fileListsByAssetType.Append(GetDependencies(filePath, dirPath));
}
}
else
{
AssetType?assetType = AssetTypeOfFile(filePath);
if (assetType != null)
{
fileListsByAssetType.Add(dirPath.AbsolutePathToAssetPath(filePath), assetType.Value);
}
}
}
}
}
/// <summary>
/// Takes the path to a directory and returns the files in that directory, the files in the parent directories (down to the Views or ~ dir),
/// and all the files
/// that that directory depends on (via .nuspec files).
///
/// It does not go into sub directories.
///
/// Uses caching to reduce trips to the file system.
/// </summary>
/// <param name="dirPath">
/// Path to the directory.
/// </param>
/// <returns>
/// The required files, split by asset type.
/// </returns>
public FileListsByAssetType GetRequiredFilesForDirectory(AssetPath dirPath)
{
string absolutePath = dirPath.AbsolutePath;
var fileListsByAssetType = _cacheHelper.Get(absolutePath, () => GetRequiredFilesForDirectoryUnchached(dirPath), new[] { absolutePath });
return fileListsByAssetType;
}
/// <summary>
/// Same as GetRequiredFilesForDirectory, but uncached.
/// </summary>
/// <param name="dirPath">
/// Path to the directory.
/// </param>
/// <returns></returns>
private FileListsByAssetType GetRequiredFilesForDirectoryUnchached(AssetPath dirPath)
{
FileListsByAssetType fileListsByAssetType = new FileListsByAssetType();
// Note: parentDirs will contain dirPath itself.
//
// dirPath.ParentDirs will give you something like
/// ~/Views/Shared/EditorTemplates/HomeAddress
/// ~/Views/Shared/EditorTemplates
/// ~/Views/Shared
// However, the longer directory tends to have the more specific files. If there is a dependency between files in these
// directories, it would be from more specific to less specific, not the other way around. So process the directories in
// reverse order, so CSS and JS files in more common directories are loaded first.
IEnumerable<AssetPath> parentDirs = dirPath.ParentDirs("Views").Reverse();
foreach (AssetPath parentDir in parentDirs)
{
AddRequiredFilesSingleDirectory(fileListsByAssetType, parentDir);
}
return fileListsByAssetType;
}
/// <summary>
/// Reads the dependencies in a Nuspec file. These are directories.
/// Accumulates the assets in those directories to in a FileListsByAssetType.
/// This is then returned.
///
/// This method calls the dependency resolver concurrently.
/// </summary>
/// <param name="absoluteNuspecPath">
/// Path of the nuspec file
/// </param>
/// <param name="nuspecFileDirPath">
/// The directory where the nuspec file is located.
/// </param>
/// <returns></returns>
private FileListsByAssetType GetDependencies(string absoluteNuspecPath, AssetPath nuspecFileDirPath)
{
FileListsByAssetType fileListsByAssetType = new FileListsByAssetType();
var nuspecFile = new NuspecFile(absoluteNuspecPath);
List<AssetPath> dependencyAssetPaths = nuspecFile.DependencyIds.Select(d => nuspecFileDirPath.Create(d)).ToList();
// Call the dependency resolver concurrently for each dependency
foreach (AssetPath dependencyAssetPath in dependencyAssetPaths)
{
fileListsByAssetType.Append(GetRequiredFilesForDirectory(dependencyAssetPath));
}
return fileListsByAssetType;
}
/// <summary>
/// Takes a file path and returns a string formatted like this:
///
/// * files with no Area, with controller Shared, and that live in a directory with a name starting with _Layout:
/// @___@
///
/// * files with no Area, with controller Shared, but don't live in a directory with a name starting with _Layout:
/// @___@@
///
/// * files with an Area, with controller Shared, and that live in a directory with a name starting with _Layout:
/// [Area]___@
///
/// * files with an Area, with controller Shared, but don't live in a directory with a name starting with _Layout:
/// [Area]___@@
///
/// * all other files, with no area
/// @___[Controller]
///
/// * all other files, with an area
/// [Area]___[Controller]
///
/// Note that alphabetically, @ sorts before any letter or digit.
/// Also, @___@@ sorts after @___@.
///
/// The method assumes that the file path is root relative, and follows MVC conventions:
///
/// * path with an Area:
/// ~/Areas/TestArea/Views/home/index/indexspecific.css
///
/// * path without an Area:
/// ~/Views/home/index/indexspecific.css
///
/// If the file path doesn't adhere to this, the method returns
/// @
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string FilePathSortKey(AssetPath assetPath)
{
string filePath = assetPath.RootRelativePath;
if (!filePath.StartsWith("~/"))
{
throw new Exception(string.Format("FilePathSortKey - filePath {0} does not start with ~/", filePath));
}
string[] filePathComponents = filePath.Split(new char[] { '/' });
// Note that the first element in filePathComponents will be the ~
// The last element is the file name itself.
string area = "@";
int nbrComponents = filePathComponents.Length;
int controllerIdx = 2;
if (string.CompareOrdinal(filePathComponents[1], "Areas") == 0)
{
if ((nbrComponents < 6) || (string.CompareOrdinal(filePathComponents[3], "Views") != 0))
{
return("@");
}
area = filePathComponents[2];
controllerIdx = 4;
}
else if (string.CompareOrdinal(filePathComponents[1], "Views") == 0)
{
if (nbrComponents < 4)
{
return("@");
}
}
else
{
return("@");
}
string controller = filePathComponents[controllerIdx];
if (string.CompareOrdinal(controller, "Shared") == 0)
{
controller = "@";
}
string postfix = "@";
int postControllerDirectoryIdx = (controllerIdx + 1);
if (nbrComponents > postControllerDirectoryIdx)
{
string postControllerDirectory = filePathComponents[postControllerDirectoryIdx].ToLower();
if (postControllerDirectory.StartsWith("_layout"))
{
postfix = "";
}
}
string sortKey = area + "___" + controller + postfix;
return(sortKey);
}
