Building CS50 on GitHub

Transcript

1. Building CS50 on GitHub David J. Malan malan@harvard.edu slides at cs50.ly/universe17
3. This is CS50 • CS50 ◦ 800 students at Harvard, 200 students at Yale • CS50x ◦ 1M registrants online • CS50 AP ◦ 150 high schools, 5,000 students
5. Problems Past • Developing apps • Deploying apps • Hosting docs • ...
6. Problems Present 1. Students do work. 2. Students submit work. 3. Teaching fellows review work.
7. Team • Brian Yu • Chad Sharp • Hailey James • Kareem Zidane
8. Team • Brian Yu • Chad Sharp • Hailey James • Kareem Zidane
9. Solutions 1. Students do work. 2. Students submit work. 3. Teaching fellows review work.
10. Solutions 1. Students do work. Homegrown tool. 2. Students submit work. 3. Teaching fellows review work.
11. Solutions 1. Students do work. Homegrown tool. 2. Students submit work. Homegrown tool. 3. Teaching fellows review work.
12. Solutions 1. Students do work. Homegrown tool. 2. Students submit work. Homegrown tool. 3. Teaching fellows review work. Homegrown tool.
13. Solutions
14. Solutions 1. Homegrown tool
15. Solutions 1. Homegrown tool 2. Improved homegrown tool
16. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool
17. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool 4. New-and-improved homegrown tool
18. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool 4. New-and-improved homegrown tool 5. GitHub
19. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool 4. New-and-improved homegrown tool 5. GitHub + homegrown tool
20. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool 4. New-and-improved homegrown tool 5. GitHub + homegrown tool
21. Solutions 1. Homegrown tool 2. Improved homegrown tool 3. New homegrown tool 4. New-and-improved homegrown tool 5. GitHub + Docker
22. Doing Work 1. ice.harvard.edu
23. Doing Work 1. ice.harvard.edu 2. nice.harvard.edu
24. Doing Work 1. ice.harvard.edu 2. nice.harvard.edu 3. cloud.cs50.net
25. Doing Work 1. ice.harvard.edu 2. nice.harvard.edu 3. cloud.cs50.net 4. CS50 Appliance
26. Doing Work 1. ice.harvard.edu 2. nice.harvard.edu 3. cloud.cs50.net 4. CS50 Appliance 5. CS50 IDE
27. Submitting Work
28. Submitting Work 1. submit
29. Submitting Work 1. submit 2. cs50submit
30. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI
31. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI 4. CS50 Submit with CLI
32. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI 4. CS50 Submit with CLI 5. CS50 Submit with GUI
33. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI 4. CS50 Submit with CLI 5. CS50 Submit with GUI 6. submit50
34. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI 4. CS50 Submit with CLI 5. CS50 Submit with GUI 6. GitHub
35. Submitting Work 1. submit 2. cs50submit 3. GitHub:FI 4. CS50 Submit with CLI 5. CS50 Submit with GUI 6. GitHub 7. GitHub + Docker
36. Reviewing Work
37. Reviewing Work 1. Paper
38. Reviewing Work 1. Paper 2. PDF
39. Reviewing Work 1. Paper 2. PDF 3. CS50 Submit
40. Reviewing Work
41. Reviewing Work 1. Paper 2. PDF 3. CS50 Submit 4. GitHub.com
42. Reviewing Work 1. Paper 2. PDF 3. CS50 Submit 4. GitHub.com 5. GitHub.com + homegrown tool 0:-)
43. Why • Client • Server • UI for code review • Permissions model ◦ CS50 ◦ CS50x ◦ CS50 AP • Post-commit hooks • ...
44. How • Gists? • Pull Requests? • GitHub Classroom? • Commits?
49. What • Client • Server • UI for code review • Permissions model ◦ CS50 ◦ CS50x ◦ CS50 AP • Post-commit hooks • ...
51. education.github.com
53. How • Repo per project? • Branch per project?
56. github.com/cs50/submit50
64. Submitting • git add --all • git commit --allow-empty --message • git push origin refs/heads/hello
65. Resubmitting • git clone --bare hello /tmp • git symbolic-ref HEAD refs/heads/hello • git add --all • git commit --allow-empty --message • git push origin refs/heads/hello
66. developer.github.com/v3/repos/
77. Tagging • git clone • git checkout refs/heads/hello • git commit-tree HEAD^{tree} -m 20171011T230000Z • git push origin refs/tags/20171011T230000Z
78. github.com/cs50/check50
79. Autograding • git clone • git checkout refs/tags/20171011T230000Z • check50
80. hub.docker.com/r/cs50/
81. docker.com
82. docker.com
83. aws.amazon.com/ecs/
84. GitHub + Docker 1. Student pushes code to GitHub 2. Post-receive hook informs CS50 of submission 3. CS50 informs ECS of submission 4. ECS clones repo, autogrades branch 5. ECS informs CS50 of scores
88. tl;dr • CS50 at cs50.edx.org • CS50 IDE at cs50.io • submit50 at github.com/cs50/submit50 • check50 at github.com/cs50/check50 • Slides at cs50.ly/universe17
89. Building CS50 on GitHub David J. Malan malan@harvard.edu slides at cs50.ly/universe17