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- 3. DIY Revision Control • Duplicate and rename • Track Changes / Save as Version • Recovering the last auto-save
- 4. “When you work within your confines, when you realize your limitations, that’s when you can break through them.”!
- 5. Revision Control Systems • Track changes to a set of files • Mostly text edits • Usually source code
- 6. Common Systems • Subversion (SVN) • BitKeeper • CVS, SVK, etc.
- 8. Why Choose Git? • Open Source (free) • Distributed gives you autonomy • Easy branching for experimenting
- 10. The Δ It’s Efficient • Revisions, not versions • Repo stores all changes – 1st change: git init! • Each change links to previous
- 11. The 3 Areas • Working Copy • Staging Index • Repo
- 13. “I was learning a lot of things fast.”!
- 14. An Analogy Packing a suitcase! #TPR7!
- 15. Step 1: All the Things! • Take some shirts out of the closet • Throw them on the bed
- 17. Step 2: Just These Things • Choose a few shirts • Prepare them for packing
- 19. Step 3: Pack the Things • Put the shirts in the suitcase
- 22. Step 1 • Take pants out of the closet • Touched the pants – that’s an edit • The pants are in your working copy
- 24. Step 2 • Choose a few pants, fold them up • Selected a change – that’s an add • The pants are in your staging index
- 26. Step 3 • Put the folded pants in your suitcase • Packed the pants – that’s a commit • The pants are in your repo
- 29. Step 1 • Take socks out of the drawer • COMMAND: (none) – Git compares current files to repo – Changes go in working copy automatically
- 31. Step 2 • Pick a few socks, roll them up • COMMAND: git add – Moves changes to staging index – Works for edited files or new files
- 33. Step 3 • Pack the socks in your suitcase • COMMAND: git commit – Records the changes to your repo – Can be a single change or many
- 35. Step 4 • Put unused clothes away • COMMAND: git checkout – Erases changes from the working copy – A good way to get out of a bad situation
- 38. “After all the weeks of practice I felt ready to play.”!
- 39. A Demo With Terminal and the GitHub app!
- 40. State of the Repo Sequential changes!
- 43. Making Branches git branch <name>! ! • Clones the repo • New working copy and staging index • Git Flow – a branching model
- 44. Switching Branches git checkout <name>! • Quickly swap to a different branch • Changes what’s in your editor • Changes what’s in the browser
- 45. An Example Going to Jamaica!
- 46. Rewind the Repo git checkout <commit2>! ! • Set the HEAD to commit #2
- 49. Branch the Rewind git checkout – b <branchName>! • Make a new branch off that commit
- 50. Master Jamaica
- 52. Get a Passport • A new item, not yet tracked • COMMAND: git add – Skip the working copy – Add directly to staging index !
- 54. Pack the Passport • Pack the passport • COMMAND: git commit – Add to the repo
- 56. Merge the Changes • Add the change to the master branch • COMMAND: git merge – Merge all changes or cherry pick
- 57. Master Jamaica
- 58. Master Jamaica
- 59. Demo Time Checkout prior commit, branch, merge
- 60. GitHub.com “Just do it like it’s all you knew how to do.”!
- 61. Learn More • http://try.github.io • “Git Essential Training” by Kevin Skoglund on Lynda.com • http://git-scm.com/book
- 63. Credits • Quotes from Get in the Van by Henry Rollins • Designer: Jacob Melton meltonjd@dukes.jmu.edu • Presenter: Annette Liskey liskeyab@jmu.edu
- 64. Questions?