== Slides ==
{{courses:cisc879:cvs_demo.pdf|CVS Demo Slides}}

== Major SVN Differences ==
| ^ CVS ^ SVN |
| revision numbers | per file | per filesystem tree | 
| conflict resolution | user responsible for remembering | can't commit until conflicts resolved |
| authentication | login to do anything (read/write), even for anonymous operations | login as operations require | 


== Basic SVN Commands ==
**Create a repository**
  svnadmin create [repository]
For CVS (assumes ''$CVSROOT'' defined and exists):
  cvs init

**Import files into repository**
  svn import [local path] [URL] -m ""
Note that subversion doesn't automatically create a new directory in your repository for you, you need to tell it in the URL //exactly// what directory you want the new files to be imported to. Also, if you cd into the folder you want to add as a new project, you can leave out the [local path].

Example
  svn import file:///home/gibson/repository/trivia -m "Initial import"
Compare with CVS:
  cvs [-d cvs repository:/usa/gibson/cvs/] import -m 'Initial' [module:trivia] [vendor tag:CISGSA] [tag:start]

**URL schemas:**
  * file (local)
  * svn (svnserve servers)
  * svn+ssh (svnserve tunneled through ssh)

**Checking out a project**
  svn co URL [local dir]
where the locat directory is optional: default is the URL directory.

**Committing changes**
  svn ci -m "Message"

**Adding, removing**\\
Almost identical to cvs.

**Get revision history**
  svn log [URL]

**Checkout previous version**\\
Append ''-r [revision number]'' to the ''co'' command. To figure out what revision number you'd like to check out, just look at the log.

**Diffing with a previous version**\\
With current working copy
  svn diff -r N
Compare revisions N-M
  svn diff -r N:M