introduction to cvs 12/17/20151umbc cmsc 341. outline introduction to source code management what is...
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Introduction to Introduction to CVSCVS
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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]
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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)
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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)
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Eclipse – CVS PerspectiveEclipse – CVS PerspectiveTo open the CVS repository
perspective select Window Open Perspective Other…
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Eclipse – CVS PerspectiveEclipse – CVS PerspectiveSelect CVS Repository Exploring
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Eclipse – Adding a Eclipse – Adding a RepositoryRepositoryTo add a repository, right click on the CVS
Repositories pane and select New Repository Location…
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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
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Eclipse – Connection Eclipse – Connection SettingsSettings
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Eclipse – Viewing Eclipse – Viewing RepositoriesRepositoriesYou should now see the repository
under the CVS Repositories Pane
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Eclipse – Checking OutEclipse – Checking OutExpand the repository, expand HEAD, select
your module (username) then right click and choose Check Out As…
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Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Be sure to use the New Project Wizard,
click Finish…
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Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Select to check out the module
as a Java Project
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Eclipse – Checking Out Eclipse – Checking Out (continued)(continued)Name the project and click
Finish…
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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
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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
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Eclipse – SynchronizingEclipse – SynchronizingTo commit to or update from the repository,
right click on the project and choose Team Synchronize with Repository
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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
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Eclipse – SynchronizedEclipse – SynchronizedIf all is in sync, you should see the “No
Changes” dialog as shown below…
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Thank you!Thank you!
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