Ask Your Code

What do we really use version control for at a fundamental level? How do we ask our codebase questions and are the tools we're using able to answer the questions that we really want to ask it? What do you want to ask your code?

Transcript

1. ask your code scott chacon GitButler
2. GitButler version control
3. GitButler
4. GitButler
5. GitButler
6. GitButler
7. GitButler product design for version control
8. first principles GitButler
9. WHY? GitButler
10. aunt minnie is in the hospital GitButler
11. When you explain a why, you have to be in some framework that you allow something to be true. GitButler
12. aunt minnie is in the hospital GitButler
13. WHY? GitButler
14. aunt minnie is in the hospital GitButler she fell and broke her hip
15. WHY? GitButler
16. aunt minnie is in the hospital GitButler she fell and broke her hip she slipped on some ice
17. WHY? GitButler
18. aunt minnie is in the hospital GitButler she fell and broke her hip she slipped on some ice ice is slippery
19. WHY? GitButler
20. first principles GitButler
21. first principles GitButler for version control
22. we all use git GitButler
23. WHY? GitButler
24. we all use git GitButler we need version control
25. WHY? GitButler
26. we all use git GitButler we need version control to collaborate and save our work
27. WHY? GitButler
28. we all use git GitButler we need version control to collaborate and save our work our computer doesn’t save the history of our files or let other people access them
29. WHY? GitButler
30. GitButler history saving, file access
31. GitButler history saving, file access google docs
32. GitButler what does version control do?
33. GitButler what does version control do? backing up commit experimenting branch, checkout collaborating and reviewing diff, merge moving bits push, pull archaeology log, blame, bisect
34. GitButler what does version control do? backing up commit experimenting branch, checkout collaborating and reviewing diff, merge moving bits push, pull archaeology log, blame, bisect archaeology log, blame, bisect
35. GitButler what does version control do? archaeology log, blame, bisect
36. GitButler what question does this answer?
37. the common questions GitButler
38. GitButler the common questions What are the last few dozen commits that have been made to this codebase?
39. GitButler the common questions What are the last few dozen commits that have been made to this codebase? git log
40. git log —-oneline —-graph
41. GitButler the common questions Who is the last person who touched this line of code?
42. git blame -L 15,26 path/to/file
43. git blame -L 15,26 path/to/file git log -L 15,26:path/to/file
44. git blame -L 15,26 path/to/file git log -L 15,26:path/to/file
45. git blame -L 15,26 path/to/file git log -L 15,26:path/to/file
46. git blame -L 15,26 path/to/file git log -L :File:path/to/file
47. git blame -L 15,26 path/to/file
48. GitButler the common questions Who is the last person who touched this line of code? What are the last few dozen commits that have been made to this codebase?
49. the uncommon questions GitButler
50. GitButler the uncommon questions What commits are on this branch that are not yet merged into this other branch?
52. git log main..self-hosted
53. git log main..self-hosted
54. git log main ^self-hosted
55. git log main ^self-hosted
56. GitButler the uncommon questions What commits introduced a change that included a speci fi c string?
57. git log -S files_watcher -p
58. GitButler the uncommon questions What fi le was this function moved from?
59. git blame -L 15,26 path/to/file
60. git blame -w -C -C -C —L 15,26 path/to/file
61. git blame -w -C -C -C —L 15,26 path/to/file
62. git blame -w -C -C -C —L 15,26 path/to/file
63. git blame -w -C -C -C —L 15,26 path/to/file
64. GitButler the uncommon questions What files are most closely related to this file?
65. What files are most closely related to this file?
66. What files are most closely related to this file? get all the commits that touch this fi le
67. What files are most closely related to this file? get all the fi les each commit touches get all the commits that touch this fi le
68. What files are most closely related to this file? print out the top fi ve fi les in common
70. the impossible questions GitButler
71. GitButler the impossible questions What Pull Requests contributed to this file? What code in other repositories are related to this code? What were the conversations (in chat or GitHub) my team had around this code before it was merged? What did the author/s reference when writing this? What specifications was this based on? What errors were or are commonly created by this code or code related to it that I should be aware of before changing?
72. ask your code? GitButler what do you want to
73. thanks! @chacon GitButler speakerdeck.com/schacon github.com/schacon these slides code examples