/// <summary>
/// Generates a manifest for a given mod.
/// </summary>
/// <param name="modPath">The path to the mod directory.</param>
/// <returns>A list of <see cref="ModManifestEntry"/>.</returns>
public List <ModManifestEntry> Generate(string modPath)
{
if (!Directory.Exists(modPath))
{
throw new DirectoryNotFoundException();
}
var result = new List <ModManifestEntry>();
List <string> fileIndex = Directory.EnumerateFiles(modPath, "*", SearchOption.AllDirectories)
.Where(x => !string.IsNullOrEmpty(x) &&
!Path.GetFileName(x).Equals("mod.manifest") &&
!Path.GetFileName(x).Equals("mod.version"))
.ToList();
if (fileIndex.Count < 1)
{
return(result);
}
OnFilesIndexed(new FilesIndexedEventArgs(fileIndex.Count));
int index = 0;
foreach (string f in fileIndex)
{
string relativePath = f.Substring(modPath.Length + 1);
FileInfo file = GetFileInfo(f);
++index;
var args = new FileHashEventArgs(relativePath, index, fileIndex.Count);
OnFileHashStart(args);
if (args.Cancel)
{
return(null);
}
string hash = GetFileHash(f);
args = new FileHashEventArgs(relativePath, index, fileIndex.Count);
OnFileHashEnd(args);
if (args.Cancel)
{
return(null);
}
result.Add(new ModManifestEntry(relativePath, file.Length, hash));
}
return(result);
}
private void OnFileHashEnd(FileHashEventArgs e)
{
FileHashEnd?.Invoke(this, e);
}
private void OnFileHashStart(FileHashEventArgs e)
{
FileHashStart?.Invoke(this, e);
}
/// <summary>
/// Verifies the integrity of a mod against a mod manifest.
/// </summary>
/// <param name="modPath">Path to the mod to verify.</param>
/// <param name="manifest">Manifest to check against.</param>
/// <returns>A list of <see cref="ModManifestDiff"/> containing change information.</returns>
public List <ModManifestDiff> Verify(string modPath, List <ModManifestEntry> manifest)
{
var result = new List <ModManifestDiff>();
int index = 0;
foreach (ModManifestEntry m in manifest)
{
string filePath = Path.Combine(modPath, m.FilePath);
++index;
var args = new FileHashEventArgs(m.FilePath, index, manifest.Count);
OnFileHashStart(args);
if (args.Cancel)
{
return(null);
}
try
{
if (!File.Exists(filePath))
{
result.Add(new ModManifestDiff(ModManifestState.Removed, m, null));
continue;
}
FileInfo info;
try
{
info = GetFileInfo(filePath);
}
catch (FileNotFoundException)
{
result.Add(new ModManifestDiff(ModManifestState.Removed, m, null));
continue;
}
if (info.Length != m.FileSize)
{
result.Add(new ModManifestDiff(ModManifestState.Changed, m, null));
continue;
}
string hash = GetFileHash(filePath);
if (!hash.Equals(m.Checksum, StringComparison.InvariantCultureIgnoreCase))
{
result.Add(new ModManifestDiff(ModManifestState.Changed, m, null));
continue;
}
result.Add(new ModManifestDiff(ModManifestState.Unchanged, m, null));
}
finally
{
args = new FileHashEventArgs(m.FilePath, index, manifest.Count);
OnFileHashEnd(args);
}
if (args.Cancel)
{
return(null);
}
}
return(result);
}