June 2004
Intermediate to advanced
319 pages
12h 58m
English
Content preview from Version Control with Subversion
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Chapter 2: Basic Concepts
How Working Copies Track the Repository
For each file in a working directory, Subversion records two essential pieces of infor-
mation in the .svn/ administrative area:
• what revision your working file is based on (this is called the file’s working revi-
sion)
• a timestamp recording when the local copy was last updated by the repository.
Given this information, by talking to the repository, Subversion can tell which of the
following four states a working file is in:
Unchanged, and current
The file is unchanged in the working directory, and no changes to that file have
been committed to the repository since its working revision. A
svn commit of the
file will do nothing, and an
svn update of the file will do nothing.
Locally changed, and current
The file has been changed in the working directory, and no changes to that file
have been committed to the repository since its base revision. There are local
changes that have not been committed to the repository; thus an
svn commit of
the file will succeed in publishing your changes, and an
svn update of the file will
do nothing.
Unchanged, and out-of-date
The file has not been changed in the working directory, but it has been changed
in the repository. The file should eventually be updated, to make it current with
the
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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.