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Re: CVS and Jar files: Should you import Jar into the Repository? Why or
From: |
Lee Sau Dan |
Subject: |
Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not |
Date: |
06 Mar 2002 11:50:44 +0100 |
User-agent: |
Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7 |
>>>>> "Christian" == Christian Andersson <address@hidden> writes:
Christian> (urgh) and dll files this is not so, if you try to
Christian> access a dcom component in that system there is only
Christian> one version of that component,you cannot (afaik) have 2
Christian> versions of the same dcom component registered. Also
Christian> there is one more difference, Dll components know there
Christian> version, not all jar-files know theirs and there is not
Christian> ONE system to ask for this information, like there is
Christian> with dll files.
>> Yeah! These are problematic. Not only JAR, but also RMI do
>> not have version info as a compulsory requirement. (How could
>> Sun have done that with RMI, given that they have RPC to copy
>> from?)
Christian> (we have started to intruduce our own version
Christian> functionallity in the code so that we can ask what
Christian> version of the class we are running, and thisin all the
Christian> classes we create ourselves, if we are extending a
Christian> class, we first make our own abstract class of this
Christian> class that implements the Version interface, all
Christian> classes then extends this new class and thus have to
Christian> implement the version interface)
It's sick that everybody managing a *real* software project have to
reinvent this. If only Sun's Java team understood the importance of
version tracking in JAR files and in RMI definitions. I was so
disappointed that RMI wasn't even an improvement over the 10+year old
RPC. It lacking the version checking stuff that RPC has.
Christian> Not designed to? then my english must not be that good,
Christian> here I thought cvs stood for concurrent version system,
Christian> a system that manages to keep track and controle
Christian> different versions of files.
But it was designed primarily for handling program source codes. So,
it makes a basic assumption that these codes are *ASCII* text files.
(Well... Try a UTF-16 file, and that won't be anything better than
binary files to CVS/RCS. UTF-8 and ISO-8859-1 would do better, as
these are highly ASCII-compatible.) Many optimizations (such as
storing only diffs between versions) are based on this assumption.
It's great that CVS does not _require_ this assumption to be met.
When the assumption is not met, then it degrades (gracefully), but
still works (instead of crashing or becoming crazy). Many "commerical
quality" software nowadays on the PeeCee market can't even meet such
tolerance! But that doesn't mean it's a good idea to use CVS for
binary files.
Christian> Well since I come from a windows enviroment, cvs is
Christian> mainly used as a version control system, diff/merge is
Christian> not used that much by us (yet) and we use cvs because
Christian> was the most cost-effective we could find..
Most CVS users will disagree with you. For me, the main reason for
using CVS/RCS is to be able to diff/merge between versions. If these
operations are not needed, I'd simply store different versions under
different file/directory names, so that I can access any version much
more directly (no need to checkout/update first).
Christian> well i have not been looking at the comand line tool so
Christian> much yet and scripts..... Uhhhm... :-) I'm sitting on
Christian> a windows machine, and unless I find and install a
Christian> shell that is good for this, scripting in DOS is not
Christian> that good :-)
Windows/DOS gives you a very very very confined view of the giant
world.
--
Lee Sau Dan 李守敦(Big5) address@hidden(HZ)
E-mail: address@hidden
Home page: http://www.informatik.uni-freiburg.de/~danlee
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, (continued)
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Greg A. Woods, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Richard Caley, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/07
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Greg A. Woods, 2002/03/05
- Message not available
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Richard Caley, 2002/03/05
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/07
- Message not available
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not,
Lee Sau Dan <=
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/07
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Sau Dan Lee, 2002/03/07
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Paul Sander, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Greg A. Woods, 2002/03/06
- Message not available
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Lee Sau Dan, 2002/03/07
- Message not available
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Lee Sau Dan, 2002/03/05
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Greg A. Woods, 2002/03/06
- Re: CVS and Jar files: Should you import Jar into the Repository? Why or why not, Noel Yap, 2002/03/07