mercurial - distributed version controlling

Work EasierWork Faster

 ”Version tools are not just important for maintaining a history of a project, they are also the foundation for a team to

collaborate” -Martin Fowler

http://martinfowler.com/bliki/VersionControlTools.html

Outline

Bit Of HistoryCentralized vs. DistributedDVCS repository structure and operation conceptsAdvantages over Centralized VCSMercurialWhen it fails

History

CVS(Concurrent Versioning System) started in 1986

On top of CVS –Subversion(2000) ,Perforce (1995)BitKeeper was the first truly DVCSGit, Mercurial ,Bazzar (2005) Currently in the field – Git , Mercurial

With Centralized VCS

CI server

With Distributed VCS

CI Server

With Distributed VCS

With Distributed VCS

With Distributed VCS

Dinesh

Buddhima

RuwanKapila

CI Server

Working

Directory

Local Repo.

Remote repo.

Hg Update

Hg Commit Hg Push

Hg pull

Hg add

Hg merge

Local Remote

Structure and operation

Branching , Merging and Tagging

Experimental, Feature branchesTagging is just giving a name to a changesetLocal and global taggingBranch security and policiesMerging – Change sets vs. Revisions

With Agile Teams

Workflows

Flexibility of choosing your own workflow – Agile ?

Policies witching team

Workflows

Workflows

Workflows

Other Advantages

Renaming and Copying.SVN and .hg FoldersInbuilt web serverspace ?

Mercurial

We chose Hg instead of Git, BazzarLittle slower than gitFriendly for windows / Cross platform support-

(TortoiseHg, Visual Hg)Similar syntax to SVNLower maintenance and easier learning curve than

GitCopying files supported

http://martinfowler.com/bliki/VersionControlTools.html

When It Fails

Pessimistic locking Who has the latest revision ?  Repository becomes publically available ?

Who Trust Mercurial

References

1. http://www.infoq.com/articles/agile-version-control

2. http://martinfowler.com/bliki/VersionControlTools.html

3. http://www.joelonsoftware.com/items/2010/03/17.html

4. http://betterexplained.com/articles/intro-to-distributed-version-control-illustrated/

5. http://progit.org/book/ch5-1.html

6. http://www.infoq.com/articles/agile-version-control