June 2003
Intermediate to advanced
336 pages
9h 49m
English
Content preview from Essential CVS
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Chapter 4. Tagging and Branching
One of the most helpful yet underused facilities of CVS is the
tag
.
CVS’s tagging feature allows you to label a revision
for later retrieval. This feature also allows you to fork development
so that you can work on two or more versions of your project
simultaneously. The version that has been forked off is called a
branch
,
and the main line of development is called the
trunk
.
This chapter explains tags, branches, and how to merge branches and trunks. It also discusses why and when to branch and provides strategies and hints for using branches effectively in your project.
Tagging
CVS allows you to retrieve any checked-in revision of a file. While retrieving revisions of individual files is useful, it’s even more useful to be able to retrieve the compatible set of revisions that make up a complete, functional version of a project, such as all the revisions that become release 1.0 of a program, or that become the first edition of a book.
Tagging is a way of marking a group of file revisions as belonging together. You can’t use the revision numbers for this purpose, because revision 2.3 of one file might belong with revision 2.17 of another. Figure 4-1 shows a group of file revision numbers, with a string denoting which revision numbers belong to the same release.
Figure 4-1. File revisions that belong together
CVS allows you to create a single tag that ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.