aboutsummaryrefslogtreecommitdiffstats
path: root/unicode/src/base/UFilesystem.pas
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--unicode/src/base/UFilesystem.pas497
1 files changed, 497 insertions, 0 deletions
diff --git a/unicode/src/base/UFilesystem.pas b/unicode/src/base/UFilesystem.pas
new file mode 100644
index 00000000..b9020391
--- /dev/null
+++ b/unicode/src/base/UFilesystem.pas
@@ -0,0 +1,497 @@
+{* UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *}
+
+unit UFilesystem;
+
+interface
+
+uses
+ {$IFDEF MSWINDOWS}
+ Windows,
+ TntSysUtils,
+ {$ENDIF}
+ UFilename,
+ SysUtils,
+ Classes;
+
+type
+ {$IFDEF MSWINDOWSe}
+ TSytemSearchRec = TSearchRecW;
+ {$ELSE}
+ TSytemSearchRec = TSearchRec;
+ {$ENDIF}
+
+ TUniSearchRec = record
+ Time: Integer;
+ Size: Int64;
+ Attr: Integer;
+ Name: IPath;
+ ExcludeAttr: Integer;
+ //FindHandle(): THandle;
+ end;
+
+ IFileFindIterator = interface
+ function HasNext(): Boolean;
+ function Next(): TUniSearchRec;
+ end;
+
+ IFileSystem = interface
+ function ExpandFileName(const FileName: IPath): IPath;
+ function FileCreate(const FileName: IPath): Integer;
+ function DirectoryCreate(const Dir: IPath): Boolean;
+ function FileOpen(const FileName: IPath; Mode: LongWord): Integer;
+ function FileAge(const FileName: IPath): Integer; overload;
+ function FileAge(const FileName: IPath; out FileDateTime: TDateTime): Boolean; overload;
+ function DirectoryExists(const Name: IPath): Boolean;
+ function FileExists(const Name: IPath): Boolean;
+ function FileGetAttr(const FileName: IPath): Cardinal;
+ function FileSetAttr(const FileName: IPath; Attr: Integer): Boolean;
+ function FileIsReadOnly(const FileName: IPath): Boolean;
+ function FileSetReadOnly(const FileName: IPath; ReadOnly: Boolean): Boolean;
+ function ForceDirectories(const Dir: IPath): Boolean;
+ function FileSearch(const Name: IPath; DirList: array of IPath): IPath;
+ function RenameFile(const OldName, NewName: IPath): Boolean;
+ function DeleteFile(const FileName: IPath): Boolean;
+ function RemoveDir(const Dir: IPath): Boolean;
+ function CopyFile(const Source, Target: IPath; FailIfExists: Boolean): Boolean;
+
+ function FileFind(const FilePattern: IPath; Attr: Integer): IFileFindIterator;
+
+ function FindFirst(const FilePattern: IPath; Attr: Integer; var F: TSytemSearchRec): Integer;
+ function FindNext(var F: TSytemSearchRec): Integer;
+ procedure FindClose(var F: TSytemSearchRec);
+
+ function GetCurrentDir: IPath;
+ function SetCurrentDir(const Dir: IPath): Boolean;
+
+ function CreateFileStream(const FileName: IPath; Mode: Word): THandleStream;
+ end;
+
+var
+ FileSystem: IFileSystem;
+
+implementation
+
+type
+ TFileSystemImpl = class(TInterfacedObject, IFileSystem)
+ public
+ function ExpandFileName(const FileName: IPath): IPath;
+ function FileCreate(const FileName: IPath): Integer;
+ function DirectoryCreate(const Dir: IPath): Boolean;
+ function FileOpen(const FileName: IPath; Mode: LongWord): Integer;
+ function FileAge(const FileName: IPath): Integer; overload;
+ function FileAge(const FileName: IPath; out FileDateTime: TDateTime): Boolean; overload;
+ function DirectoryExists(const Name: IPath): Boolean;
+ function FileExists(const Name: IPath): Boolean;
+ function FileGetAttr(const FileName: IPath): Cardinal;
+ function FileSetAttr(const FileName: IPath; Attr: Integer): Boolean;
+ function FileIsReadOnly(const FileName: IPath): Boolean;
+ function FileSetReadOnly(const FileName: IPath; ReadOnly: Boolean): Boolean;
+ function ForceDirectories(const Dir: IPath): Boolean;
+ function FileSearch(const Name: IPath; DirList: array of IPath): IPath;
+ function RenameFile(const OldName, NewName: IPath): Boolean;
+ function DeleteFile(const FileName: IPath): Boolean;
+ function RemoveDir(const Dir: IPath): Boolean;
+ function CopyFile(const Source, Target: IPath; FailIfExists: Boolean): Boolean;
+
+ function FileFind(const FilePattern: IPath; Attr: Integer): IFileFindIterator;
+
+ function FindFirst(const FilePattern: IPath; Attr: Integer; var F: TSytemSearchRec): Integer;
+ function FindNext(var F: TSytemSearchRec): Integer;
+ procedure FindClose(var F: TSytemSearchRec);
+
+ function GetCurrentDir: IPath;
+ function SetCurrentDir(const Dir: IPath): Boolean;
+
+ function CreateFileStream(const FileName: IPath; Mode: Word): THandleStream;
+ end;
+
+ TFileFindIterator = class(TInterfacedObject, IFileFindIterator)
+ private
+ fHasNext: Boolean;
+ fSearchRec: TSytemSearchRec;
+ public
+ constructor Create(const FilePattern: IPath; Attr: Integer);
+ destructor Destroy(); override;
+
+ function HasNext(): Boolean;
+ function Next(): TUniSearchRec;
+ end;
+
+
+function TFileSystemImpl.CreateFileStream(const FileName: IPath; Mode: Word): THandleStream;
+begin
+ Result := TUniFileStream.Create(FileName, Mode);
+end;
+
+function TFileSystemImpl.FileFind(const FilePattern: IPath; Attr: Integer): IFileFindIterator;
+begin
+ Result := TFileFindIterator.Create(FilePattern, Attr);
+end;
+
+{$IFDEF MSWINDOWSs}
+
+function TFileSystemImpl.ExpandFileName(const FileName: IPath): IPath;
+begin
+ Result := Path(WideExpandFileName(FileName.ToWideString()));
+end;
+
+function TFileSystemImpl.FileCreate(const FileName: IPath): Integer;
+begin
+ Result := WideFileCreate(FileName.ToWideString());
+end;
+
+function TFileSystemImpl.DirectoryCreate(const Dir: IPath): Boolean;
+begin
+ Result := WideCreateDir(Dir.ToWideString());
+end;
+
+function TFileSystemImpl.FileOpen(const FileName: IPath; Mode: LongWord): Integer;
+begin
+ Result := WideFileOpen(FileName.ToWideString(), Mode);
+end;
+
+function TFileSystemImpl.FileAge(const FileName: IPath): Integer;
+begin
+ Result := WideFileAge(FileName.ToWideString());
+end;
+
+function TFileSystemImpl.FileAge(const FileName: IPath; out FileDateTime: TDateTime): Boolean;
+begin
+ Result := WideFileAge(FileName.ToWideString(), FileDateTime);
+end;
+
+function TFileSystemImpl.DirectoryExists(const Name: IPath): Boolean;
+begin
+ Result := WideDirectoryExists(Name.ToWideString());
+end;
+
+function TFileSystemImpl.FileExists(const Name: IPath): Boolean;
+begin
+ Result := WideFileExists(Name.ToWideString());
+end;
+
+function TFileSystemImpl.FileGetAttr(const FileName: IPath): Cardinal;
+begin
+ Result := WideFileGetAttr(FileName.ToWideString());
+end;
+
+function TFileSystemImpl.FileSetAttr(const FileName: IPath; Attr: Integer): Boolean;
+begin
+ Result := WideFileSetAttr(FileName.ToWideString(), Attr);
+end;
+
+function TFileSystemImpl.FileIsReadOnly(const FileName: IPath): Boolean;
+begin
+ Result := WideFileIsReadOnly(FileName.ToWideString());
+end;
+
+function TFileSystemImpl.FileSetReadOnly(const FileName: IPath; ReadOnly: Boolean): Boolean;
+begin
+ Result := WideFileSetReadOnly(FileName.ToWideString(), ReadOnly);
+end;
+
+function TFileSystemImpl.ForceDirectories(const Dir: IPath): Boolean;
+begin
+ Result := WideForceDirectories(Dir.ToWideString());
+end;
+
+function TFileSystemImpl.FileSearch(const Name: IPath; DirList: array of IPath): IPath;
+var
+ I: integer;
+ DirListStr: WideString;
+begin
+ DirListStr := '';
+ for I := 0 to High(DirList) do
+ begin
+ if (I > 0) then
+ DirListStr := DirListStr + PathSep;
+ DirListStr := DirListStr + DirList[I].ToWideString();
+ end;
+ Result := Path(WideFileSearch(Name.ToWideString(), DirListStr));
+end;
+
+function TFileSystemImpl.RenameFile(const OldName, NewName: IPath): Boolean;
+begin
+ Result := WideRenameFile(OldName.ToWideString(), NewName.ToWideString());
+end;
+
+function TFileSystemImpl.DeleteFile(const FileName: IPath): Boolean;
+begin
+ Result := WideDeleteFile(FileName.ToWideString());
+end;
+
+function TFileSystemImpl.RemoveDir(const Dir: IPath): Boolean;
+begin
+ Result := WideRemoveDir(Dir.ToWideString());
+end;
+
+function TFileSystemImpl.CopyFile(const Source, Target: IPath; FailIfExists: Boolean): Boolean;
+begin
+ Result := WideCopyFile(Source.ToWideString(), Target.ToWideString(), FailIfExists);
+end;
+
+function TFileSystemImpl.FindFirst(const FilePattern: IPath; Attr: Integer; var F: TSytemSearchRec): Integer;
+begin
+ Result := WideFindFirst(FilePattern.ToWideString(), Attr, F);
+end;
+
+function TFileSystemImpl.FindNext(var F: TSytemSearchRec): Integer;
+begin
+ Result := WideFindNext(F);
+end;
+
+procedure TFileSystemImpl.FindClose(var F: TSytemSearchRec);
+begin
+ WideFindClose(F);
+end;
+
+function TFileSystemImpl.GetCurrentDir: IPath;
+begin
+ Result := Path(WideGetCurrentDir());
+end;
+
+function TFileSystemImpl.SetCurrentDir(const Dir: IPath): Boolean;
+begin
+ Result := WideSetCurrentDir(Dir.ToWideString());
+end;
+
+{$ELSE} // UNIX
+
+function TFileSystemImpl.ExpandFileName(const FileName: IPath): IPath;
+begin
+ Result := Path(SysUtils.ExpandFileName(FileName.ToString(pencSystemANSI)), pencSystemANSI);
+end;
+
+function TFileSystemImpl.FileCreate(const FileName: IPath): Integer;
+begin
+ Result := SysUtils.FileCreate(FileName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.DirectoryCreate(const Dir: IPath): Boolean;
+begin
+ Result := SysUtils.CreateDir(Dir.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileOpen(const FileName: IPath; Mode: LongWord): Integer;
+begin
+ Result := SysUtils.FileOpen(FileName.ToString(pencSystemANSI), Mode);
+end;
+
+function TFileSystemImpl.FileAge(const FileName: IPath): Integer;
+begin
+ Result := SysUtils.FileAge(FileName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileAge(const FileName: IPath; out FileDateTime: TDateTime): Boolean;
+begin
+ Result := SysUtils.FileAge(FileName.ToString(pencSystemANSI), FileDateTime);
+end;
+
+function TFileSystemImpl.DirectoryExists(const Name: IPath): Boolean;
+begin
+ Result := SysUtils.DirectoryExists(Name.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileExists(const Name: IPath): Boolean;
+begin
+ Result := SysUtils.FileExists(Name.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileGetAttr(const FileName: IPath): Cardinal;
+begin
+ Result := SysUtils.FileGetAttr(FileName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileSetAttr(const FileName: IPath; Attr: Integer): Boolean;
+begin
+ Result := (SysUtils.FileSetAttr(FileName.ToString(pencSystemANSI), Attr) = 0);
+end;
+
+function TFileSystemImpl.FileIsReadOnly(const FileName: IPath): Boolean;
+begin
+ Result := SysUtils.FileIsReadOnly(FileName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileSetReadOnly(const FileName: IPath; ReadOnly: Boolean): Boolean;
+begin
+ Result := SysUtils.FileSetReadOnly(FileName.ToString(pencSystemANSI), ReadOnly);
+end;
+
+function TFileSystemImpl.ForceDirectories(const Dir: IPath): Boolean;
+begin
+ Result := SysUtils.ForceDirectories(Dir.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.FileSearch(const Name: IPath; DirList: array of IPath): IPath;
+var
+ I: integer;
+ DirListStr: AnsiString;
+begin
+ DirListStr := '';
+ for I := 0 to High(DirList) do
+ begin
+ if (I > 0) then
+ DirListStr := DirListStr + PathSep;
+ DirListStr := DirListStr + DirList[I].ToString(pencSystemANSI);
+ end;
+ Result := Path(SysUtils.FileSearch(Name.ToString(pencSystemANSI), DirListStr), pencSystemANSI);
+end;
+
+function TFileSystemImpl.RenameFile(const OldName, NewName: IPath): Boolean;
+begin
+ Result := SysUtils.RenameFile(OldName.ToString(pencSystemANSI), NewName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.DeleteFile(const FileName: IPath): Boolean;
+begin
+ Result := SysUtils.DeleteFile(FileName.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.RemoveDir(const Dir: IPath): Boolean;
+begin
+ Result := SysUtils.RemoveDir(Dir.ToString(pencSystemANSI));
+end;
+
+function TFileSystemImpl.CopyFile(const Source, Target: IPath; FailIfExists: Boolean): Boolean;
+const
+ COPY_BUFFER_SIZE = 4096; // a good tradeoff between speed and memory consumption
+var
+ SourceFile, TargetFile: TFileStream;
+ FileCopyBuffer: array [0..COPY_BUFFER_SIZE-1] of byte; // temporary copy-buffer.
+ NumberOfBytes: integer; // number of bytes read from SourceFile
+begin
+ Result := false;
+ SourceFile := nil;
+ TargetFile := nil;
+
+ // if overwrite is disabled return if the target file already exists
+ if (FailIfExists and FileExists(Target)) then
+ Exit;
+
+ try
+ try
+ // open source and target file (might throw an exception on error)
+ SourceFile := TFileStream.Create(Source.ToString(pencSystemANSI), fmOpenRead);
+ TargetFile := TFileStream.Create(Target.ToString(pencSystemANSI), fmCreate or fmOpenWrite);
+
+ while true do
+ begin
+ // read a block from the source file and check for errors or EOF
+ NumberOfBytes := SourceFile.Read(FileCopyBuffer, SizeOf(FileCopyBuffer));
+ if (NumberOfBytes <= 0) then
+ Break;
+ // write block to target file and check if everything was written
+ if (TargetFile.Write(FileCopyBuffer, NumberOfBytes) <> NumberOfBytes) then
+ Exit;
+ end;
+ except
+ Exit;
+ end;
+ finally
+ SourceFile.Free;
+ TargetFile.Free;
+ end;
+
+ Result := true;
+end;
+
+function TFileSystemImpl.FindFirst(const FilePattern: IPath; Attr: Integer; var F: TSytemSearchRec): Integer;
+begin
+ Result := SysUtils.FindFirst(FilePattern.ToString(pencSystemANSI), Attr, F);
+end;
+
+function TFileSystemImpl.FindNext(var F: TSytemSearchRec): Integer;
+begin
+ Result := SysUtils.FindNext(F);
+end;
+
+procedure TFileSystemImpl.FindClose(var F: TSytemSearchRec);
+begin
+ SysUtils.FindClose(F);
+end;
+
+function TFileSystemImpl.GetCurrentDir: IPath;
+begin
+ Result := Path(SysUtils.GetCurrentDir(), pencSystemANSI);
+end;
+
+function TFileSystemImpl.SetCurrentDir(const Dir: IPath): Boolean;
+begin
+ Result := SysUtils.SetCurrentDir(Dir.ToString(pencSystemANSI));
+end;
+
+{$ENDIF}
+
+
+{ TFileFindIterator }
+
+constructor TFileFindIterator.Create(const FilePattern: IPath; Attr: Integer);
+begin
+ inherited Create();
+ fHasNext := (FileSystem.FindFirst(FilePattern, Attr, fSearchRec) = 0);
+end;
+
+destructor TFileFindIterator.Destroy();
+begin
+ FileSystem.FindClose(fSearchRec);
+ inherited;
+end;
+
+function TFileFindIterator.HasNext(): Boolean;
+begin
+ Result := fHasNext;
+end;
+
+function TFileFindIterator.Next(): TUniSearchRec;
+begin
+ if (not fHasNext) then
+ begin
+ FillChar(Result, SizeOf(Result), 0);
+ Exit;
+ end;
+
+ Result.Time := fSearchRec.Time;
+ Result.Size := fSearchRec.Size;
+ Result.Attr := fSearchRec.Attr;
+ {$IFDEF MSWINDOWS}
+ Result.Name := Path(fSearchRec.Name);
+ {$ELSE}
+ Result.Name := Path(fSearchRec.Name, pencSystem);
+ {$ENDIF}
+ Result.ExcludeAttr := fSearchRec.ExcludeAttr;
+
+ // fetch next entry
+ fHasNext := (FileSystem.FindNext(fSearchRec) = 0);
+end;
+
+
+initialization
+ FileSystem := TFileSystemImpl.Create;
+
+finalization
+ FileSystem := nil;
+
+end.