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Introduction to CVS. Outline. Introduction to Source Code Management What is CVS? CVS for Project Submission Basic commands Checkout, Add, Commit, Update How to use CVS using Putty How to use CVS using Eclipse. What is Source Code Management. - PowerPoint PPT Presentation
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Outline• Introduction to Source Code Management
• What is CVS?
• CVS for Project Submission• Basic commands
• Checkout, Add, Commit, Update◦ How to use CVS using Putty◦ How to use CVS using Eclipse
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What is Source Code Management
• SCM : Also known as revision or source control
• So, why should you use one?
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What is CVS?
• Concurrent Versioning System (CVS) is one of the earlier SCM systems which gained wide adoption
• Advantages– Open source– Easy to install and use– Simple command line client– Wide integration in a lot of development
tools
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CVS for Project submissionCVS for Project submissionTerminology used
◦Repository◦Server◦Client◦Working Directory
Some of the options available to connect to the repository◦Command-line using Putty◦Through Eclipse IDE
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CVS CommandCVS Command• The general form of CVS commands is:
– All CVS commands start out with “cvs”– Commands may also have flags and/or
arguments which modify their behavior
• For a more help…– General help: cvs --help– List of commands: cvs --help-commands
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cvs [cvs-options] command [command-options-and-arguments]
Basic commandsBasic commandscheckout : Pull resources from the
repository and create a working copy
add : place a resource under version control
update : Pull down changes from the repository into your working copy
commit: Check files into the repository
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Command-line using Putty
Steps to be followed◦ Log in using Putty◦ Edit the .cshrc file : Add alias javac
usr/local/bin/javac
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Command-line using PuttyCommand-line using PuttyStep 1: cd changes your working directory
to home directoryStep 2: cvs -d
/afs/umbc.edu/users/y/p/ypeng/pub/cs341s11/Proj0 checkout -d MyProj0 your_usernameYou will get two files copied to MyProj0: a junk and a build file
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Command-line using PuttyCommand-line using Putty Step 3: cd MyProj0 Change to your project
directory Step 4 : mkdir src Step 5: cd src Step 6: Create a java file called Proj0.java and type in
a simple java code. Let the package name be ‘firstproject’. Save the file in the src folder.
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Build fileBuild file
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Step 3: cd MyProj0 Change to your project directoryStep 4 : mkdir src
Step 7: if the build file you checked out is build.txt, then
mv build.txt build.xml Step 8 : edit build.xml (change the value of main.class)
Command-line using PuttyCommand-line using Putty Step 9: Compile the code using
ant compile Step 10: Run the code using
ant run
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Command-line using PuttyCommand-line using Putty Step 11 : Add files to the repository:
◦ Step 11.1 cvs add build.xml
◦ Step 11.2 cvs add src/
◦ Step 11.3 cd src
◦ Step 11.4 cvs add Proj0.java
◦ Step 11.5 cvs commit –m ‘some text’
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Command-line using PuttyCommand-line using PuttyStep 12: Check if Proj0.java is added to the
repository◦ Go to src folder in MyProj0◦ Remove Proj0.java◦ Run ‘cvs update’◦ You should get back Proj0.java from the
repository
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EclipseEclipseEclipse has a built-in perspective
for CVS◦All of the developer downloads come
with it pre-installed
(The following directions are for the Eclipse Ganymede Eclipse IDE for Java Developer
release)
Eclipse – CVS PerspectiveEclipse – CVS PerspectiveTo open the CVS repository
perspective select Window Open Perspective Other…
Eclipse – Adding a Eclipse – Adding a RepositoryRepositoryTo add a repository, right click on the CVS
Repositories pane and select New Repository Location…
Eclipse – Connection Eclipse – Connection SettingsSettingsType in the parameters to
connect to the remote repositoryFor example…
◦ Host: linux.gl.umbc.edu◦ Repository Path:
/afs/umbc.edu/users/y/p/ypeng/pub/cs341s11/Proj0/◦ User: Your GL/myUMBC username◦ Password: Your GL/myUMBC password◦ Connection type: extssh
Save the password if you wish
Eclipse – Viewing Eclipse – Viewing RepositoriesRepositoriesYou should now see the repository
under the CVS Repositories Pane
Eclipse – Checking OutEclipse – Checking OutExpand the repository, expand HEAD, select
your module (username) then right click and choose Check Out As…
Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Be sure to use the New Project Wizard,
click Finish…
Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Select to check out the module
as a Java Project
Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Name the project and click
Finish…
Eclipse – Checked Out Eclipse – Checked Out CodeCodeSwitch back to the Java Perspective
and you will see the module checked out as a project◦ Note the little orange cylinders – that
indicates that it’s under version control
Eclipse – New ResourcesEclipse – New Resources• Just like with the command line, items
that are not know to be under CVS control are marked with a “?” symbol– Such as the Eclipse generated src folder
Eclipse – SynchronizingEclipse – SynchronizingTo commit to or update from the repository,
right click on the project and choose Team Synchronize with Repository
Eclipse – Committing Eclipse – Committing ResourcesResourcesHere we see an outgoing arrow indicating
that this needs to be pushed to the repository◦ Commits and updates can be performed by right
clicking
Eclipse – SynchronizedEclipse – SynchronizedIf all is in sync, you should see the “No
Changes” dialog as shown below…