1. Friday, April 20, 12

2. Distributed version control
Friday, April 20, 12

3. build it
check get
in Task
write
code
Friday, April 20, 12

4. DVCS @ Unite
Issue Tracker
Friday, April 20, 12

5. DVCS @ Unite
Content Collaboration
Friday, April 20, 12

6. Shaping the future of DVCS
Friday, April 20, 12

7. Making the Switch to DVCS
How Atlassian teams moved from centralised to
distributed version control
John Stevenson, UK Ambassador, Atlassian
7
Friday, April 20, 12

8. Friday, April 20, 12

9. Importance of Versioning
Friday, April 20, 12

10. Importance of Versioning
Collaboration History of changes Multiple copies
Friday, April 20, 12

11. Importance of Versioning
Collaboration History of changes Multiple copies
Friday, April 20, 12

12. Importance of Versioning
Collaboration History of changes Multiple copies
Friday, April 20, 12

13. One repository to rule them
all
Friday, April 20, 12

14. One repository to rule them
all
Friday, April 20, 12

15. Whats the beef
with Subversion ?
Friday, April 20, 12

16. Centralised Version Control
Subversion
Friday, April 20, 12

17. Centralised Version Control
Subversion
Friday, April 20, 12

18. Centralised Version Control
Subversion
Friday, April 20, 12

19. Subversion issues
• Merging hell
• Fear of breaking the
build
• delayed commits lead
to more merging hell
Friday, April 20, 12

20. Subversion issues
• Merging hell
• Fear of breaking the
build
• delayed commits lead
to more merging hell
Friday, April 20, 12

21. Subversion issues
• Merging hell
• Fear of breaking the
build
• delayed commits lead
to more merging hell
Friday, April 20, 12

22. Rise of DVCS
• High adoption in Open
Source projects
• Enterprises now making the
move
• Atlassian teams already
migrated
Friday, April 20, 12

23. Rise of DVCS
• High adoption in Open
Source projects
• Enterprises now making the
move
• Atlassian teams already
migrated
Friday, April 20, 12

24. Rise of DVCS
• High adoption in Open
Source projects
• Enterprises now making the
move
• Atlassian teams already
migrated
Friday, April 20, 12

25. Everyone is doing it!
Friday, April 20, 12

26. Everyone is doing it!
Friday, April 20, 12

27. Social coding
Friday, April 20, 12

28. Social coding
Friday, April 20, 12

29. Social coding
Friday, April 20, 12

30. Friday, April 20, 12

31. Enhancing the
development cycle
with DVCS
Friday, April 20, 12

32. Distributed Version Control
Friday, April 20, 12

33. Distributed Version Control
Git or Mercurial
Git or Mercurial Git or Mercurial
Git or Mercurial
Git or Mercurial Git or Mercurial
Friday, April 20, 12

34. DVCS encourages learning
• Smaller projects
• Smaller iterations / continuous deployment
• Faster feedback
• Greater collaboration & innovation
• Understanding customers better
Friday, April 20, 12

35. What do I need to learn
Friday, April 20, 12

36. What do I need to learn
Friday, April 20, 12

37. Differences in workflow?
Friday, April 20, 12

38. Not just the command line
Friday, April 20, 12

39. Not just the command line
Friday, April 20, 12

40. Not just the command line
The command line is like Marmite...
Friday, April 20, 12

41. “ Distributed Version Control is flexible and can fit any
”
workflow - you can even treat it like Subversion.
Friday, April 20, 12

42. “ Distributed Version Control is flexible and can fit any
”
workflow - you can even treat it like Subversion.
Steve Streeting
Creator of SourceTree
Friday, April 20, 12

43. Centralised Vs Distributed
Friday, April 20, 12

44. Classic Vs Re-imagined
Friday, April 20, 12

45. How did Atlassian do it?
Recipe for DVCS
adoption
Friday, April 20, 12

46. How did Atlassian do it?
Recipe for DVCS
adoption
Friday, April 20, 12

47. Atlassian DVCS recipe
Friday, April 20, 12

48. Atlassian DVCS recipe
Tooling
Friday, April 20, 12

49. Git and Mercurial Mac Client
Friday, April 20, 12

50. Git and Mercurial Mac Client
Friday, April 20, 12

51. Browse and Search source
across versioning tools
Commits to SVN & DVCS repos
Browse source in
Subversion, Git, Hg, CVS, etc.
Friday, April 20, 12

52. Browse and Search source
across versioning tools
Commits to SVN & DVCS repos
Browse source in
Subversion, Git, Hg, CVS, etc.
Friday, April 20, 12

53. Source code disinfectant
Friday, April 20, 12

54. Source code disinfectant
Friday, April 20, 12

55. Continuous Integration and
release management
• Run same builds against old
and new VCS
• Continuous Validation
• Separate repos for integration
Friday, April 20, 12

56. Continuous Integration and
release management
• Run same builds against old
and new VCS
• Continuous Validation
• Separate repos for integration
Friday, April 20, 12

57. Link every commit to
JIRA issues
Friday, April 20, 12

58. Link every commit to
JIRA issues
Friday, April 20, 12

59. Atlassian DVCS recipe
Friday, April 20, 12

60. Atlassian DVCS recipe
Practices
Friday, April 20, 12

61. Incremental change
• Try on small projects
• Use hybrid tooling
Friday, April 20, 12

62. Bringing our history with us
Friday, April 20, 12

63. Bringing our history with us
Friday, April 20, 12

64. Atlassian DVCS recipe
Friday, April 20, 12

65. Atlassian DVCS recipe
Experience
Friday, April 20, 12

66. DVCS mentor
Friday, April 20, 12

67. DVCS mentor
Friday, April 20, 12

68. DVCS mentor
Friday, April 20, 12

69. Code
without
Limitations
• Fork & Clone
• Repositories are cheap,
don't be afraid to mess up
Friday, April 20, 12

70. Commit Early,
Commit Often
Friday, April 20, 12

71. Commit Early,
Commit Often
Friday, April 20, 12

72. Atlassian DVCS
Friday, April 20, 12

73. Atlassian DVCS
Benefits
Friday, April 20, 12

74. Benefit: Developer Speed
• Common commands, just faster
• Fast tools = happy developers
• Complete history at hand
Friday, April 20, 12

75. Benefit: Developer Speed
• Common commands, just faster
• Fast tools = happy developers
• Complete history at hand
Friday, April 20, 12

76. Benefit: Fast Feedback
• More lessons learnt
• Issues resolved more timely
• Less risk and impact to a project
• More in tune with customers
Friday, April 20, 12

77. Benefit: Fast Feedback
• More lessons learnt
• Issues resolved more timely
• Less risk and impact to a project
• More in tune with customers
Friday, April 20, 12

78. DVCS @ Atlassian
Friday, April 20, 12

79. DVCS @ Atlassian
Friday, April 20, 12

80. Wrap up
• DVCS has great business and technical benefits
• Atlassian is shaping the future of DVCS
Friday, April 20, 12

81. Thank you
blogs.atlassian.com
sourcetreeapp.com
blog.jr0cket.co.uk
@jr0cket
Friday, April 20, 12