Introducing gitfs

Git has been a developer’s go-to tool ever since it started to gain popularity a few years back. Still, not everyone who gets to play a bit with code will want to go through the whole process of learning its quirks. This is where gitfs, the open-source tool we’re launching right now, comes into play.

Transcript

1. | open source developers users
2. | open source whoami and what do I do
3. | open source
4. | open source
5. | open source the problem problem?
6. | open source once upon a time...
7. | open source in one student dorm
8. | open source
9. | open source
10. | open source CHAOS!
11. | open source
12. | open source introducing gitfs
13. | open source gitfs what is it?
14. | open source demo gitfs
15. | open source easy! as 1, 2, 3 gitfs
16. | open source gitfs
17. | open source open-source gitfs
18. | open source how was it made? gitfs
19. | open source research gitfs
20. | open source for git gitfs
21. | open source git = pygit2 gitfs
22. | open source from pygit2 import clone_repository, Keypair
23. | open source from pygit2 import clone_repository, Keypair credentials = Keypair("git", "/home/wok/.ssh/ unsafe_key.pub","/home/wok/.ssh/unsafe_key", "") gitfs
24. | open source from pygit2 import clone_repository, Keypair credentials = Keypair("git", "/home/wok/.ssh/ unsafe_key.pub","/home/wok/.ssh/unsafe_key", "") repository = clone_repository("git@github. com:vtemian/gitfs-demo","/home/wok/gitfs-demo", credentials=credentials) gitfs
25. | open source from pygit2 import clone_repository, Keypair credentials = Keypair("git", "/home/wok/.ssh/ unsafe_key.pub","/home/wok/.ssh/unsafe_key", "") repository = clone_repository("git@github. com:vtemian/gitfs-demo","/home/wok/gitfs-demo", credentials=credentials) remote = [remote for remote in repo.remotes if remote.name == "origin"] remote[0].credentials = credentials gitfs
26. | open source from pygit2 import clone_repository, Keypair credentials = Keypair("git", "/home/wok/.ssh/ unsafe_key.pub","/home/wok/.ssh/unsafe_key", "") repository = clone_repository("git@github. com:vtemian/gitfs-demo","/home/wok/gitfs-demo", credentials=credentials) remote = [remote for remote in repo.remotes if remote.name == "origin"] remote[0].credentials = credentials remote[0].push("refs/heads/master") gitfs
27. | open source for the file system gitfs
28. | open source file system = fusepy gitfs
29. | open source class Memory(Operations): gitfs
30. | open source class Memory(Operations): def open(self, path, flags): self.fd += 1 return self.fd gitfs
31. | open source class Memory(Operations): def open(self, path, flags): self.fd += 1 return self.fd def read(self, path, size, offset, fh): return self.data[path][offset:offset + size] gitfs
32. | open source class Memory(Operations): def open(self, path, flags): self.fd += 1 return self.fd def read(self, path, size, offset, fh): return self.data[path][offset:offset + size] def rename(self, old, new): self.files[new] = self.files.pop(old) gitfs
33. | open source class Memory(Operations): def open(self, path, flags): self.fd += 1 return self.fd def read(self, path, size, offset, fh): return self.data[path][offset:offset + size] def rename(self, old, new): self.files[new] = self.files.pop(old) def rmdir(self, path): self.files.pop(path) self.files['/']['st_nlink'] -= 1 gitfs
34. | open source class Memory(Operations): def open(self, path, flags): self.fd += 1 return self.fd def read(self, path, size, offset, fh): return self.data[path][offset:offset + size] def rename(self, old, new): self.files[new] = self.files.pop(old) def rmdir(self, path): self.files.pop(path) self.files['/']['st_nlink'] -= 1 def write(self, path, data, offset, fh): self.data[path] = self.data[path][:offset] + data self.files[path]['st_size'] = len(self.data[path]) return len(data) gitfs
35. | open source first iteration gitfs
36. | open source very dirty def rename(self, old, new): if "history" in old or new: # raise EROFS elif old == "/" or new == "/": # raise EROFS else: # do the actual rename gitfs
37. | open source second iteration gitfs
38. | open source read() Router CurrentView HistoryView CommitView IndexView gitfs
39. | open source read('/history/2014-10-18/14-01-04-fg34asc4/Readme.md') CommitView gitfs
40. | open source back to the drawing board >$ █ gitfs
41. | open source upstream synchronization gitfs
42. | open source solve conflicts gitfs
43. | open source solve conflicts 1 2 3 7 8 4 5 6 remote local gitfs
44. | open source 1 2 3 4 5 6 merging_remote 1 2 3 7 8 merging_local gitfs solve conflicts
45. | open source 1 2 3 4 5 7' 6 8' merging_remote 1 2 3 7 8 merging_local gitfs solve conflicts
46. | open source 1 2 3 4 5 7' 6 8' local gitfs solve conflicts
47. | open source back to the drawing board >$ █ gitfs
48. | open source third iteration gitfs
49. | open source cache gitfs
50. | open source back to the drawing board >$ █ gitfs
51. | open source upstream synchronization gitfs
52. | open source Fuse threads gitfs
53. | open source Fuse threads commits gitfs
54. | open source Fuse threads Commit queue commits gitfs
55. | open source Fuse threads Commit queue Sync worker commits gitfs
56. | open source Fuse threads Commit queue Sync worker commits want to sync don't open for write gitfs
57. | open source Fuse threads Commit queue Sync worker commits commit want to sync don't open for write gitfs
58. | open source Fuse threads Commit queue Sync worker commits commit want to sync sync done don't open for write gitfs
59. | open source Fuse threads Commit queue Sync worker Fetch worker commits commit want to sync sync done don't open for write FETCH FETCH FETCH gitfs
60. | open source Fuse threads Commit queue Sync worker Fetch worker commits commit want to sync sync done don't open for write Nothing happens FETCH FETCH FETCH gitfs
61. | open source Fuse threads Commit queue Sync worker Fetch worker commits commit want to sync sync done don't open for write Nothing happens Nothing happens but somebody is still writing FETCH FETCH FETCH gitfs
62. | open source Fuse threads Commit queue Sync worker Fetch worker commits commit want to sync sync done don't open for write Nothing happens Nothing happens but somebody is still writing Nothing happens but somebody is still writing so we can merge and push FETCH FETCH FETCH gitfs
63. | open source back to the drawing board >$ █ gitfs
64. | open source pytest gitfs
65. | open source $ sudo add-apt-repository ppa:presslabs/gitfs $ sudo apt-get update $ sudo apt-get install gitfs gitfs
66. | open source 720 commits 4215 lines of code 187 tests 4 contributers 3½ months
67. | open source github.com/PressLabs/gitfs
68. | open source inspiration
69. | open source Q/A?
70. | open source thank you
71. | open source