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Re: Update files based on a tag without removing others?

From: Todd Denniston
Subject: Re: Update files based on a tag without removing others?
Date: Mon, 29 Oct 2007 08:15:18 -0500
User-agent: Thunderbird (X11/20070728)

Peter Loron wrote, On 10/26/2007 05:08 PM:
We have a situation where we have a large tree of files checked out. Each day, 
a small subset of those files are tagged. I was hoping I could revert a tagged 
set of files easily with one update or checkout command like this:

cvs update -r prop_20071022 <moduleroot>

...what winds up happening is that the files with the given tag are present, 
but everything else is deleted. What I'd like to be able to do is that 
operation, but keep all the other files unmodified. I know can can go through 
the list of files with a given tag, and issue an update command for each file, 
specifying the tag, but that's a hassle.

Any insights other than "tag the whole tree not just a few files"?



From a copy of the manual[1], I think you want to use one or two "-j"[2] options with update. I don't think the -j merge will remove files[3] just because there is no tag on some files, but it may. You may be stuck using the implicit Date tag, i.e., figure out where in time you want to revert to and use "update -D"[2] with the understanding that you will likely have a sandbox with a sticky tag, however this can be useful to finally apply that tag to the whole tree instead of just a few files.

In the end you will probably be happier when you learn to "tag the whole tree not just a few files" in the beginning. :) (Sorry, but it is generally true.)

[1] references against a local copy of the normal CVS cederqvist manual from[1], which was untared in /tmp/.
[2] file:///tmp/cederqvist-1.11.21.html/cvs_16.html#SEC155
[3] file:///tmp/cederqvist-1.11.21.html/cvs_5.html#SEC63
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter

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