Quick Git Talk

Transcript

1. Learn You Some Git Not Your Average Git Talk
2. GIT IS NOT REVISION CONTROL SOFTWARE
3. GIT is a filesystem
6. Content Addressable Filesystem
7. "Who are you and why are you still talking?"
8. •I am called Randall •I know more about git than you •Probably... maybe...
10. •I am called Randall •I know more about git than you •Probably... maybe... •I work at AWS •I tweet @jrhunt •I wrote gitshots •I write great commit messages
11. s
13. •I am called Randall •I know more about git than you •Probably... maybe... •I work at AWS •I tweet @jrhunt •I wrote gitshots •I write great commit messages •8 major patches to GIT •All of them rejected.
14. HALP! Wat is git?
15. GIT IS MAGIC •Easy Context Switching •Role-based codelines •Feature based workflow •Easy Experimentation
16. Distributed
 Version Control
20. working directory git add -p files staging area
21. git commit -m "holla" staging area git database
22. Git Saves You From Yourself
24. DEMO
25. DO YOUR WORK IN BRANCHES!
26. NO REALLY. git checkout -b feature
27. Content Addressable Filesystem
28. git hash-object refs.c sha1(a77458f2f6eb108a90a1cf3d2cc4a771549c05f9)
29. Your Content Is Your Address
30. SHA1 1. Add Data 2. Add More Data 3. Mix it all around 4. Get a magic number "unique" (mostly) 160 bits of ADDRESS MATH!
31. BRANCHES ARE REFERENCES TO COMMITS
32. COMMITS ARE POINTERS TO TREES
33. TREES ARE POINTERS TO TREES AND BLOBS
34. BLOBS ARE ZLIB COMPRESSED FILES
36. DIRECTED ACYCLIC GRAPH
38. RECAP • Commits -> N pointers to parents, date, metadata • Trees -> Point to trees where leaf nodes are blobs • Blobs -> ZLIB compressed files RECAP RECAP
39. THIS IS NOT A TOILET
41. commit, branch, log, diff, add, etc.
43. hash-object, cat-file, ls-tree, (un)pack
45. GIT QUESTIONS?
46. I GIT ANSWERS