Subversion%20for%20Smarties

1
Subversion for Smarties

• Cameron Childress
• cameronc_at_sumoc.com

2
Intro

• ColdFusion, since 1996
• ACFUG since, 1998
• Foosball, since 2001
• Sumo Consulting, since 2002

3
Session Description

• So you know how to Branch and Tag, but you have
  a sneaky suspicion there is more you could be
  doing with SVN. Come find out what you've been
  missing out on and how to make Subversion do more
  for you!

4
Preview

• Review of SVN basics
• A few non-SVN things
• Interesting bits built into SVN
• External tools
• Some examples

5
Review Key Advantages vs. VSS or CVS

• SVN Server runs on many platforms
• Many clients available for SVN
• SVN is free open source
• Too many more to list

6
Subversion vs. Git Basics

• Created by Linus Torvalds
• Replaced BitKeeper
• Used for Linux Kernel, PERL, RoR, Android OS
• Download athttp//git-scm.com

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Subversion vs. Git Git Wins

• SVN is Centralized, Git is distributed
• Local operations are faster
• Branching Handling
• Merge Handling
• Smaller HD Footprint (Mozilla 12 GiB in SVN,
  420 MiB in Git)

8
Subversion vs Git SVN Wins

• Better IDE support
• SVN has a de-facto single Repository
• Centralized access control
• Version numbers are easier in SVN
• Git / SVN Comparisonhttp//git.or.cz/gitwiki/GitS
  vnComparsion

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Review Subversion Basics

• Conventional Project Structure
• Branches
• Tags
• Trunk
• Typical Exposure
• Comit
• Update
• Resolve Conflicts
• Branch / Merge (maybe)

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Review Key Subversion Features

• Revision numbers apply to entire tree
• Directories are versioned
• Working Copy vs. Repository
• Caches pristine copy which allows
• Revert
• Diff
• Status
• Branches and tags are normal directories
• Binary files are stored as difference data

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Something New in SVN Changelists

• Introduced in SVN 1.5 (currently at 1.6)
• Also a feature in Perforce
• Groups files for operations
• Commit
• Diff
• Great for grouping files for bug resolution

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Changelists You Should Know

• Part of working copy, not repository
• Only works with files, not directories
• One changelist assignment per file
• Changelists cleared on commit
• Override using flag --keep-changelists

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Changelist How To Command Line

• Syntax svn changelist listname filelist
• Listname can be any string
• Filelist supports wildcards
• Morehttp//svnbook.red-bean.com/nightly/en/svn.
  advanced.changelists.html

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Changelist How To Tortoise

• Example

15
By the way Perforce Also Has

• Labels
• Similar to Tags, but not simply convention
• ClientSpecs
• Maps repo / directories
• Together
• Very powerful for deployment
• Great for large teams w/distributed roles

16
SVN Properties

• Think metadata for each file
• Stored in .svn/props
• Checked into repo with file
• Versioned
• Special Properties
• svnignore
• svnkeywords
• svnneeds-lock
• svnexecutable

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Special SVN Property svnkeywords

• Used for keyword substitution
• Must be explicitly turned on
• svnkeywords
• Date
• Revision
• Author
• HeadURL
• Id
• Example

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Automate Keyword Substitution

• Config file miscellany section
• Applies to working copy, not repo
• On windows, found in
• /AppData/Subversion
• More
• http//svnbook.red-bean.com/nightly/en/
• svn.advanced.props.special.keywords.html

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Hooks

• Run a program at certain points in commit process
• Implemented as bat file in Windows
• Live in repo, not working copy
• Examples by default found in repo/hooks
• http//svnbook.red-bean.com/nightly/en/
• svn.reposadmin.create.htmlsvn.reposadmin.create.h
  ooks

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Hook Types

• start-commit
• pre-commit / post-commit
• pre-revprop-change / post-revprop-change
• pre-lock / post-lock
• pre-unlock / post-unlock

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Hooks Tips

• Hook programs execute with an empty environment
• Do not modify a commit transaction using hook
  scripts
• Permissions, permissions, permissions

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Hooks Ideas

• Push code to staging server
• Send notification emails to dev team
• Update issue / project management software

23
Resources for Hooks

• Brad Woods Bloghttp//www.codersrevolution.com/i
  ndex.cfm/2008/9/15/Creating-a-postcommit-hook-for-
  Subversion
• Dan Switzers Blog
• http//blog.pengoworks.com/index.cfm/2008/2/5/Debu
  gging-Subversion-Repository-Hooks-in-Windows

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Visual SVN Server

• Windows installer (visualsvn.com)
• Installs Apache based Service
• HTTPS/SSL Capable
• Internally _at_ SVN 1.6.4 (current) as of 8/12/09
• Take a Look

25
SVN Abstration Layer

• Provides abstraction for RIA ForgeBy Rob Gonda
• Configure via XML
• Uses Apache by default, partial support for
  SVNServe
• http//svnservice.riaforge.org/

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SVN Abstraction Layer

• Repositories
• Create, delete, list
• Users
• Create, delete, list, changepassword
• History
• List

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SVN Abstraction Layer Example Code

• svnService createObject('component',
  'models.svnService').init('config/config.xml')
• svnService.listRepos()
• svnService.create(myRepo)
• svnService.getLog(myRepo', 10)
• svnService.addUser(myRepo', username',
  password')

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SVN Sync

• SVNSync Repo BrowserBy Tom de Manincor
• Configure via XML (X2)
• config/environment.xml
• model/svnAPI/config.xml
• http//svnsync.riaforge.org/

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SVN Sync

• Lets check it out

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Roundup RIA Forge Projects

• Deployment builder - ANT/SVNBy Matt
  Rileyhttp//deploymentbuilder.riaforge.org/
• Skweegee - TRAC more(formerly Trac_Fu)By
  Russ Johnsonhttp//skweegee.riaforge.org/

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Roundup RIA Forge Projects

• SVNAuthz.cfc Manipulate authz filesBy
  Terrance Ryanhttp//svnauthz.riaforge.org/
• SVNUtil AIR App, Removes .svn infoBy Omar
  Gonzalezhttp//svnutil.riaforge.org/

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Resources

• Book - Version Control with Subversionhttp//svnb
  ook.red-bean.com
• Windows Installer / Admin - VisualSVNhttp//www.v
  isualsvn.com

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Questions?

• Contact
• cameronc_at_sumoc.com
• cameroncf (YIM / AIM)
• Presentation available NOW via
• USB Thumbdrive
• http//www.sumoc.com/downloads/files/svn.zip
• Take the Surveyhttp//tinyurl.com/cfunitedsurvey