private List <UpdateTask> GetOldFileTasks(AppInfo appInfo, UpdateInfo info, UpdateHost updateInfoSource, FileIndex index)
{
List <UpdateTask> updateTasks = new List <UpdateTask>();
for (int i = 0; i < index.files.Count; i++)
{
string curFile = index.files[i];
string curLocalFile = InstallationSettings.InstallationFolder + '/' + curFile;
if (info.fileChecksums.ContainsKey(curFile))
{
if (File.Exists(curLocalFile))
{
string curHash = FileHasher.GetFileChecksum(curLocalFile);
string updatedHash;
info.fileChecksums.TryGetValue(curFile, out updatedHash);
if (!curHash.Equals(updatedHash))
{
updateTasks.Add(new UpdateTask(TaskType.DownloadReplacementFile, updateInfoSource.GetFileURL(appInfo, info, curFile), curLocalFile));
}
}
else
{
updateTasks.Add(new UpdateTask(TaskType.DownloadNewFile, updateInfoSource.GetFileURL(appInfo, info, curFile), curLocalFile));
}
}
else
{
updateTasks.Add(new UpdateTask(TaskType.DeleteFile, curLocalFile));
}
}
return(updateTasks);
}
private List <UpdateTask> GetNewFileTasks(AppInfo appInfo, UpdateInfo info, UpdateHost updateInfoSource, FileIndex index)
{
List <UpdateTask> updateTasks = new List <UpdateTask>();
for (int i = 0; i < info.fileChecksums.Keys.Count; i++)
{
string curFile = info.fileChecksums.Keys.ElementAt(i);
string curLocalFile = InstallationSettings.InstallationFolder + '/' + curFile;
if (index.files.Contains(curFile))
{
//Already handled file
continue;
}
if (File.Exists(curLocalFile))
{
//File exists but is missing in index?
string curHash = FileHasher.GetFileChecksum(curLocalFile);
string updatedHash;
info.fileChecksums.TryGetValue(curFile, out updatedHash);
if (updatedHash.Equals(curHash))
{
continue;
}
else
{
updateTasks.Add(new UpdateTask(TaskType.DownloadReplacementFile, updateInfoSource.GetFileURL(appInfo, info, curFile), curLocalFile));
}
}
else
{
updateTasks.Add(new UpdateTask(TaskType.DownloadNewFile, updateInfoSource.GetFileURL(appInfo, info, curFile), curLocalFile));
}
}
return(updateTasks);
}