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Mercurial



cocoaheads.be
Starting points
• Distributed Version Control System
  Local Repository                        Remote Repository
                        Push
                                                1     2     4
   1       2       4
                        Pull
                                                      3
           3
                          hg   init
                          hg   commit -m “fixed that bug”
                          hg   update
 Commit        Update     hg   add file1.h file2.m ...
                          hg   remove file3.h
                          hg   addremove

                          hg   clone [server]
                          hg   push [server]
                          hg   pull [server]
                          hg   fetch [server]
       Work Area
                          hg summary
                          hg status
                          hg blame -lun file.m
Specificities
•   Written in Python
    •   Cross Platform (Windows, etc.)
    •   Extensions

• Easy commands, clean and specific
• Local changeset numbering
• Fast and efficient
• hg serve
• subrepo
• Bitbucket
  • One free private repository
• Murky.app (GUI)
Mercurial Intro
Mercurial Intro
Subrepo
• Version that depends on external libs
           controlled dependencies
  • An app
  •   Those libs are version controlled
• Keep dependency revision when committing
   App A/
     .hg
     Sources/
        file1.c
     Deps/
        Lib B/
          .git
        Lib C/
          .svn
Compared to git
• Very similar, yet conceptual differences
  • Mercurial
      •     Immutability of history                       • Arrived at about the same time


      •
                                                          • As replacements to BitKeeper
            Consistent & focused interface, extensible
                                                          • Mercurial projects

      •     Anonymous branches                                • Mozilla, OpenOffice,
                                                              NetBeans, Octave...


  •   git
      •     Content tracking
      •     Powerful interface, more complexity
      •     Named branches (namespace, light-weight...)

• Which one should I use? source /
  •Xcode4 / cross platform / open
      dependencies / users skills
  •   Try both!
Use Cases
• Creaceed data repositories
  •Source &
      •   Warning: data repositories can quickly become huge...
      •   Use something else for data

  •   Multi-people (2-3) configuration
      •   Specific rights to access certain repositories
      •   Single ssh account on server, different access rights (per repo)
      •   Bitbucket

• KadroidSVN
  •Before:
  •   No network > one becomes the server (hg serve)
  •   Bitbucket
Links

•   http://mercurial.selenic.com
•   http://hgbook.red-bean.com
•   http://mercurial.selenic.com/wiki/UsingExtensions
•   http://mercurial.selenic.com/wiki/SharedSSH
Thanks

web: 	

 	

 www.creaceed.com
email: 	

	

 raphael@creaceed.com
                                     cocoaheads.be
twitter: 	

 @rsebbe

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Mercurial Intro

  • 2. Starting points • Distributed Version Control System Local Repository Remote Repository Push 1 2 4 1 2 4 Pull 3 3 hg init hg commit -m “fixed that bug” hg update Commit Update hg add file1.h file2.m ... hg remove file3.h hg addremove hg clone [server] hg push [server] hg pull [server] hg fetch [server] Work Area hg summary hg status hg blame -lun file.m
  • 3. Specificities • Written in Python • Cross Platform (Windows, etc.) • Extensions • Easy commands, clean and specific • Local changeset numbering • Fast and efficient • hg serve • subrepo • Bitbucket • One free private repository • Murky.app (GUI)
  • 6. Subrepo • Version that depends on external libs controlled dependencies • An app • Those libs are version controlled • Keep dependency revision when committing App A/ .hg Sources/ file1.c Deps/ Lib B/ .git Lib C/ .svn
  • 7. Compared to git • Very similar, yet conceptual differences • Mercurial • Immutability of history • Arrived at about the same time • • As replacements to BitKeeper Consistent & focused interface, extensible • Mercurial projects • Anonymous branches • Mozilla, OpenOffice, NetBeans, Octave... • git • Content tracking • Powerful interface, more complexity • Named branches (namespace, light-weight...) • Which one should I use? source / •Xcode4 / cross platform / open dependencies / users skills • Try both!
  • 8. Use Cases • Creaceed data repositories •Source & • Warning: data repositories can quickly become huge... • Use something else for data • Multi-people (2-3) configuration • Specific rights to access certain repositories • Single ssh account on server, different access rights (per repo) • Bitbucket • KadroidSVN •Before: • No network > one becomes the server (hg serve) • Bitbucket
  • 9. Links • http://mercurial.selenic.com • http://hgbook.red-bean.com • http://mercurial.selenic.com/wiki/UsingExtensions • http://mercurial.selenic.com/wiki/SharedSSH
  • 10. Thanks web: www.creaceed.com email: raphael@creaceed.com cocoaheads.be twitter: @rsebbe