Category : OS/2 Files
Archive   : HPFS-CMP.ZIP
Filename : COMPRESS.MOD

MODULE Compress;


IMPORT
Dos,
Lib,
Str,
IO;


TYPE
FName = ARRAY [1..255] OF CHAR;


VAR
OrgPath : FName;
SubStr : ARRAY [1..2] OF CHAR;
SubDirs : BOOLEAN;


PROCEDURE Compress_Dir(DirName : ARRAY OF CHAR; SubDir : BOOLEAN);
VAR
SearchName : FName;
TempName : FName;
DirHandle : Dos.HDIR;
SearchBuf : Dos.FILEFINDBUF;
SearchCount : CARDINAL;
First : BOOLEAN;
Buffer : ARRAY [1..1024] OF CHAR;
BytesRead : CARDINAL;
BytesWritten : CARDINAL;
Dummy : CARDINAL;
OK : BOOLEAN;
BEGIN
DirHandle := 0FFFFH;
SearchCount := 1;
First := TRUE;
Str.Copy(SearchName, DirName);
Str.Append(SearchName, '*');
Str.Copy(TempName, DirName);
Str.Append(TempName, 'Mikaels.$$$');
WHILE (First AND (Dos.FindFirst(SearchName,DirHandle,CARDINAL({1,4}),SearchBuf,SIZE(SearchBuf),SearchCount,0) = 0)) OR
(NOT First AND (Dos.FindNext(DirHandle,SearchBuf,SIZE(SearchBuf),SearchCount) = 0)) DO
First := FALSE;
IF NOT (4 IN BITSET(SearchBuf.attrFile)) THEN
IO.WrStr(DirName);
IO.WrStr(SearchBuf.name);
IO.WrStr(' <- ');
OK := FALSE;
Str.Concat(SearchBuf.name, DirName, SearchBuf.name);
IF Dos.Copy(SearchBuf.name, TempName, CARDINAL({0}), 0) = 0 THEN
IF Dos.Delete(SearchBuf.name, 0) = 0 THEN
IF Dos.Move(TempName, SearchBuf.name, 0) = 0 THEN
OK := TRUE;
END;
END;
END;
IF OK THEN
IO.WrStr('OK');
ELSE
IO.WrStr('Failed');
END;
IO.WrLn;
ELSIF (Str.Compare('.',SearchBuf.name) <> 0) AND (Str.Compare('..',SearchBuf.name) <> 0) AND SubDir THEN
Str.Concat(SearchBuf.name, DirName, SearchBuf.name);
Str.Concat(SearchBuf.name, SearchBuf.name, '\');
Compress_Dir(SearchBuf.name, SubDir);
END;
IF IO.KeyPressed() AND (IO.RdKey() = CHR(27)) THEN
IO.WrLn;
IO.WrStr('Terminated by user'); IO.WrLn;
IO.WrLn;
HALT;
END;
END;
END Compress_Dir;


BEGIN
IF (Lib.ParamCount() = 0) OR (Lib.ParamCount() > 2) THEN
IO.WrLn;
IO.WrStr('Usage: '); IO.WrLn;
IO.WrLn;
IO.WrStr(' Compress [/S]'); IO.WrLn;
IO.WrLn;
IO.WrStr(' Path to be compressed (syntax: C:\Dir\'); IO.WrLn;
IO.WrStr(' [/S] Compress subdirectories (optional)'); IO.WrLn;
IO.WrLn;
IO.WrStr(' Example: Compress \ /S compresses the entire hard disk'); IO.WrLn;
IO.WrLn;
ELSE
SubDirs := FALSE;
Lib.ParamStr(OrgPath, 1);
IF Lib.ParamCount() > 1 THEN
Lib.ParamStr(SubStr, 2);
Str.Caps(SubStr);
IF Str.Compare('/S', SubStr) = 0 THEN
SubDirs := TRUE;
ELSE
IO.WrLn;
IO.WrStr('Invalid option: ');
IO.WrStr(SubStr);
IO.WrLn;
IO.WrLn;
HALT;
END;
END;
IO.WrLn;
IO.WrStr('OS/2 disk compression. (c) 1991 by Mikael Wahlgren'); IO.WrLn;
IO.WrStr("Press to exit (don't Ctrl-Break!)"); IO.WrLn;
IO.WrLn;
Compress_Dir(OrgPath, SubDirs);
END;
END Compress.