[SvnBook] #54: Best practice: when and when not to use Subversion
SvnBook
noreply at red-bean.com
Fri Aug 10 20:47:04 CDT 2007
#54: Best practice: when and when not to use Subversion
-------------------------+--------------------------------------------------
Reporter: cmpilato | Owner: nobody
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: content | Version: nightly/trunk
Keywords: |
-------------------------+--------------------------------------------------
From: Flemming Bjerke <flem at bjerke.dk>
For me, it was a bit difficult to understand when to use subversion
because I did not really understand the principle. I, and probably many
others, would have helped quite a lot if you in the introduction had a
subsection called: "When and when not to use Subversion"
Probably, you can make this subsection much better. Feel free to do it.
But, I think it is important to explain to newbies when Subversion is
good, and why it is not good for everything.
----
When and when not to use Subversion
Subversion should be used if you have good reasons saving old versions of
files. One good reason is of course that it is important for you be able
return to former versions of your files, e.g. you need to be able to find
deleted files or parts of files. Another good reason is when you are
several person who share some files and you all change them. Subversion
will help you keeping record of the changes others (and yourself) have
made so you can act correctly when such changes have been made.
But, everything has its price. Since subversion keeps track of changes, it
has to be told when changes happen. Therefore, you cannot copy, mv, rename
etc. among your subversion files in the normal way. You have to use the
special svn commands to do such things. You also need to have a svn
repository where all the old versions are saved. But, that repository is
not readable for humans. If the repository is damaged, you risk to loose
old version of your files. Therefore, it is important that you back up the
repository. You may use the hot-backup.py script as described in this
book.
An example illustrates the point. You would like have your datafiles on
your laptop and your home-pc syncronised. In many cases, you don't care
about older versions of the files. Therefore, you should use a much
simpler syncronisation program like unison that has no special repository
and allows you to do all the normal file manipulations. But, if it is
important for you to have old versions of certain files (if you write
articles, a book, software, or whatever) then it is probably a good idea
to make a svn-repository for these files at your home-pc (or at a server)
so you can check relevant versions out from your laptop, and your home-pc
as well.
--
Ticket URL: <http://svnbook.red-bean.com/trac/ticket/54>
SvnBook <http://svnbook.red-bean.com/>
More information about the svnbook-dev
mailing list