/// <summary>
/// Loads a <see cref="FileEntryGraph"/> from the specified file.
/// </summary>
/// <param name="file">The file to load a new <see cref="FileEntryGraph"/> from.</param>
/// <param name="forFileName">The initial value for the returned objects <see cref="FileEntryGraph.ForFileName"/></param>
/// <returns>The newly loaded <see cref="FileEntryGraph"/>.</returns>
public static FileEntryGraph Load(LessIO.Path file, string forFileName)
{
var graph = new FileEntryGraph(forFileName);
using (var f = System.IO.File.OpenText(file.PathString))
{
f.ReadLine();//headings
while (!f.EndOfStream)
{
var line = f.ReadLine().Split(',');
if (line.Length != 5)
throw new IOException("Expected 5 fields!");
/* FIX for github issue #23:
* The problem was that old ExpectedOutput files were all prefixed with C:\projects\lessmsi\src\Lessmsi.Tests\bin\Debug\<msiFileNameWithoutExtension> (something like C:\projects\lessmsi\src\Lessmsi.Tests\bin\Debug\NUnit-2.5.2.9222\SourceDir\PFiles\NUnit 2.5.2\fit-license.txt)
* We need to remove Since we don't reasonably know what the original msi filename was, we do know it was the subdirectory of C:\projects\lessmsi\src\Lessmsi.Tests\bin\Debug\. So we should remove C:\projects\lessmsi\src\Lessmsi.Tests\bin\Debug\ and the next subdirectory from the path.
* HACK: A better fix would undoubtedly be to cleanup those old file swith code like this and remove this hack from this code forever!
*/
var path = line[0];
const string oldRootPath = @"C:\projects\lessmsi\src\Lessmsi.Tests\bin\Debug\";
if (path.StartsWith(oldRootPath, StringComparison.InvariantCultureIgnoreCase))
{
//this is an old file that would trigger github issue #23, so we'll fix it here...
// first remove the old root path:
path = path.Substring(oldRootPath.Length);
// now romove the msi filename (which we don't know, but we know it is the next subdirectory of the old root):
var lengthOfSubDirectoryName = path.IndexOf('\\', 0);
path = path.Substring(lengthOfSubDirectoryName);
}
graph.Add(new FileEntry(path, Int64.Parse(line[1]), DeserializeDate(line[2]), DeserializeDate(line[3]), DeserializeAttributes(line[4])));
}
}
return graph;
}
/// <summary>
/// Creates a list of <see cref="MsiFile"/> objects from the specified database.
/// </summary>
public static MsiFile[] CreateMsiFilesFromMSI(LessIO.Path msiDatabaseFilePath)
{
using (var db = new Database(msiDatabaseFilePath.PathString, OpenDatabase.ReadOnly))
{
return CreateMsiFilesFromMSI(db);
}
}
/// <summary>
/// Saves this <see cref="FileEntryGraph"/> to the specified file.
/// </summary>
/// <param name="file">The file that this graph will be saved to.</param>
public void Save(LessIO.Path file)
{
//save it as csv:
if (file.Exists)
LessIO.FileSystem.RemoveFile(file);
using (var f = file.CreateText())
{
f.WriteLine("Path,Size,CreationTime,LastWriteTime,Attributes");
foreach (var e in this.Entries)
{
f.Write(e.Path);
f.Write(",");
f.Write(e.Size);
f.Write(",");
f.Write(SerializeDate(e.CreationTime));
f.Write(",");
f.Write(SerializeDate(e.LastWriteTime));
f.Write(",");
f.Write(SerializeAttributes(e.Attributes));
f.WriteLine();
}
}
}
