public void CleanUpManifestFile()
{
// read file
string mp3ManifestFile = GetMp3ListFilePath();
List <string> lines = File.ReadAllText(mp3ManifestFile).Split(new[] { Environment.NewLine }, StringSplitOptions.None).ToList();
string pattern = @"(.+) \| (.+)";
string parseMp3(string line) => MatchGroup(line, pattern, 1);
// filter out lines whose mp3s no longer exist
List <string> keepLines = new List <string>();
foreach (string line in lines)
{
var relMp3 = parseMp3(line);
var absMp3 = JunUtils.FullPathFromSongsFolder(relMp3);
if (File.Exists(absMp3))
{
keepLines.Add(line);
}
}
// write to file
File.WriteAllText(mp3ManifestFile, String.Join(Environment.NewLine, keepLines));
}
public DeleteMp3sForm(List <string> filesToDelete)
{
InitializeComponent();
List <string> uniqueFilesToDelete = filesToDelete.Distinct().ToList();
// filter out files that don't exist
Dictionary <string, string> pathMapping = new Dictionary <string, string>();
uniqueFilesToDelete.ForEach(file => pathMapping.Add(file, JunUtils.FullPathFromSongsFolder(file)));
List <string> relativeFileList = uniqueFilesToDelete.Where(file => File.Exists(JunUtils.FullPathFromSongsFolder(file))).ToList();
// populate listview
string formatFileSize(long len)
{
string[] sizes = { "B", "KB", "MB", "GB", "TB" };
int order = 0;
decimal value = (decimal)len;
while (value >= 1024 && order < sizes.Length - 1)
{
order++;
value = value / 1024;
}
return(String.Format("{0:0.##} {1}", value, sizes[order]));
}
ListViewItem fileToListViewItem(string file)
{
string[] subitems = new string[3];
FileInfo fi = new FileInfo(JunUtils.FullPathFromSongsFolder(file));
subitems[0] = file; // path relative to songs folder
subitems[1] = fi.CreationTime.ToString("d"); // date created
subitems[2] = formatFileSize(fi.Length); // size
return(new ListViewItem(subitems));
}
fileListView.Items.Clear();
relativeFileList
.Select(file => fileToListViewItem(file))
.ToList()
.ForEach(item => fileListView.Items.Add(item));
// update total filesize label
long totalSize = relativeFileList
.Select(file => new FileInfo(JunUtils.FullPathFromSongsFolder(file)).Length)
.Sum();
fileSizeLabel.Text = $"Total: {formatFileSize(totalSize)} to be deleted";
confirmButton.Focus();
}
public List <string> GetUnusedMp3s()
{
// read manifest file
List <string> lines = new List <string>();
string mp3ManifestFile = GetMp3ListFilePath();
if (!File.Exists(mp3ManifestFile))
{
return(new List <string>());
}
using (var reader = File.OpenText(mp3ManifestFile))
{
string line = "";
while ((line = reader.ReadLine()) != null)
{
lines.Add(line);
}
}
// convert that shit into a dictionary
var mp3Dict = new Dictionary <string, List <string> >();
string pattern = @"(.+) \| (.+)";
string parseMp3(string line) => MatchGroup(line, pattern, 1);
string parseOsu(string line) => MatchGroup(line, pattern, 2);
// create dictionary keys
lines
.Select(line => parseMp3(line)).ToList()
.Distinct()
.ToList()
.ForEach(mp3 => mp3Dict.Add(mp3, new List <string>()));
// populate dictionary values
foreach ((string mp3, string osu) in lines.Select(line => (parseMp3(line), parseOsu(line))))
{
mp3Dict[mp3].Add(osu);
}
// find all keys where none of the associated beatmaps exist, but the mp3 still exists
bool noFilesExist(bool acc, string file) => acc && !File.Exists(file);
return(lines
.Select(line => parseMp3(line))
.Where(mp3 => mp3Dict[mp3].Aggregate(true, noFilesExist))
.Where(mp3 => File.Exists(JunUtils.FullPathFromSongsFolder(mp3)))
.ToList());
}
private void DeleteButton_Click(object sender, EventArgs e)
{
var mp3List = editor.GetUnusedMp3s();
if (new DeleteMp3sForm(mp3List).ShowDialog() == DialogResult.OK)
{
mp3List
.Select(relativeMp3 => JunUtils.FullPathFromSongsFolder(relativeMp3))
.Select(absMp3 => new FileInfo(absMp3))
.ToList()
.ForEach(file => file.Delete());
if (mp3List.Count > 0)
{
MessageBox.Show($"Deleted {mp3List.Count} file(s).", "Success");
}
editor.CleanUpManifestFile();
}
}
private void DeleteButton_Click(object sender, EventArgs e)
{
if (gameLoaded == true)
{
MessageBox.Show("Please close osu! first then try again.", "osu! is running");
return;
}
var mp3List = editor.GetUnusedMp3s();
if (new DeleteMp3sForm(mp3List).ShowDialog() == DialogResult.OK)
{
mp3List
.Select(relativeMp3 => JunUtils.FullPathFromSongsFolder(relativeMp3))
.Select(absMp3 => new FileInfo(absMp3))
.ToList()
.ForEach(file => file.Delete());
if (mp3List.Count > 0)
{
MessageBox.Show($"Deleted {mp3List.Count} file(s).", "Success");
}
editor.CleanUpManifestFile();
}
}