Copyright 1997-2003 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by John D. Polstra.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
INTERFACE FileUpdater;
IMPORT
CVProto, FileStatus, Logger, Pathname, Rd, SupFileRec, Thread,
TokScan, Wr;
EXCEPTION
Error(TEXT);
FixupNeeded(TEXT);
TYPE
T <: Public;
Public = OBJECT METHODS
update(sfr: SupFileRec.T;
name: Pathname.T;
toAttic: BOOLEAN;
proto: CVProto.T;
trace: Logger.T;
protoRd: Rd.T;
wr: Wr.T;
VAR (*OUT*) status: Status)
RAISES {Error, FixupNeeded, Rd.EndOfFile, Rd.Failure, Thread.Alerted,
TokScan.Error, Wr.Failure};
isRCS(): BOOLEAN;
END;
The base type defaults isRCS() to a method that returns FALSE. Subtypes
may override this.
Status = RECORD
updateType: UpdateType;
fs: FileStatus.T;
fromAttic: BOOLEAN;
modified: BOOLEAN;
wantSum: TEXT := "*"; (* Reference MD5 checksum from the server. *)
END;
The default value for wantSum never matches. If an individual
subtype wants to disable checksum comparisons, it should set
wantSum to NIL.
UpdateType = {
Create, (* Create a new file *)
Checkout, (* Check a file out from RCS *)
Delete, (* Delete an existing file *)
Replace, (* Replace an existing file *)
Append, (* Append to an existing file *)
Touch, (* Update an existing file's modification time *)
Edit, (* Edit an RCS file or a checked-out file *)
Rsync, (* Edit a regular file with the rsync algorithm *)
Fixup, (* Replace an RCS file that couldn't be edited *)
Other (* Everything else. *)
};
END FileUpdater.