Super Smash Bros: Compile Limit Edition

Do you work with a large codebase? Does it contain thousands of Swift files? Then you might hit an annoying issue with which you won't be able to compile. After hitting us for 2 years now, we may have some experience working around it. Hear the story of what this issue is, and how we heroically dealt with it (disclaimer: there're no dragons involved).

Transcript

1. iOS Team Super Smash Bros: Compiler Limit Edition
2. iOS Team wallapop iOS Team
3. iOS Team @lascorbe @filip4Wall
4. iOS Team what’s the issue
5. iOS Team What does the compiler do with Swift file paths?
6. iOS Team Takes absolute paths of all source files when compiling
7. iOS Team Takes absolute paths of all source files when compiling /Users/Luis/Developer/a_bit_long_folder_name/Projects/My_Cool_Project/iOS/
8. iOS Team
9. iOS Team Xcode 10
10. iOS Team Xcode 9
11. iOS Team Old Legacy Build System
12. iOS Team Reaches ARG_MAX limit
13. iOS Team UNIX system has a limit on how many bytes can be used for the command line argument and environment variables
14. iOS Team UNIX system has a limit on how many bytes can be used for the command line argument and environment variables getconf ARG_MAX
15. iOS Team UNIX system has a limit on how many bytes can be used for the command line argument and environment variables (~262k bytes) getconf ARG_MAX
16. iOS Team Possible solutions
17. iOS Team Solution 1.
18. iOS Team Documents/important/work/iphone/MyRepository/Sources/ Users/filip/Documents/important/work/iphone/M
19. iOS Team Changing paths
20. iOS Team Users/filip/Documents/important/work/iphone/ MyRepository/MyProject/sources/ui/login/ LoginView.swift 99 chars
21. iOS Team Users/filip/Documents/important/work/iphone/ MyRepository/MyProject/sources/ui/login/ LoginView.swift Users/filip/MyRepository/MyProject/sources/ui/login/ LoginView.swift 67 chars 99 chars
22. iOS Team Users/filip/Documents/important/work/iphone/ MyRepository/MyProject/sources/ui/login/ LoginView.swift Users/filip/MyRepository/MyProject/sources/ui/login/ LoginView.swift Users/filip/MyRepository/sources/ui/login/ LoginView.swift 57 chars 67 chars 99 chars
23. iOS Team + fast + easy - uncertain - file git history
24. iOS Team Solution 2.
25. iOS Team How about some (w)rapping?
26. iOS Team Swiftc wrapper
27. iOS Team https://github.com/ tgebarowski/swiftc-wrapper
28. iOS Team + no project changes + fast to apply - environment dependent - no supported - magic
29. iOS Team Solution 3.
30. iOS Team Monolith vs modules in Xcode example
31. iOS Team Strangling the monolith
32. iOS Team + correct approach + secure future + additional perks - difficult - time consuming - file git history
33. iOS Team How did we evolve at wallapop?
34. iOS Team Changing path first try Documents/Wallapop ➤ Documents/Walla
35. iOS Team
36. iOS Team Development pods
37. iOS Team
38. iOS Team Development pods path rename Walla/InternalPods ➤ Walla/wPods
39. iOS Team
40. iOS Team Modules
41. iOS Team Be prepared
42. iOS Team Maintain a good architecture
43. iOS Team If your project is already big
44. iOS Team But
45. iOS Team Good news
46. iOS Team It’s already been fixed
47. iOS Team Available in Swift 5
48. iOS Team
49. iOS Team But
50. iOS Team But
51. iOS Team It’s already almost been fixed
52. iOS Team Only in SwiftC
53. iOS Team Not available in Xcode
54. iOS Team
55. iOS Team Xcode 11?
56. iOS Team
57. iOS Team How to dupe a rdar?
58. iOS Team 1. Go to bugreport.apple.com and report a new bug
59. iOS Team 1. Go to bugreport.apple.com and report a new bug 2. Select Product > Developer Tools > Xcode
60. iOS Team 1. Go to bugreport.apple.com and report a new bug 2. Select Product > Developer Tools > Xcode 3. Set title “Xcode build: support passing parameters via response files”
61. iOS Team 1. Go to bugreport.apple.com and report a new bug 2. Select Product > Developer Tools > Xcode 3. Set title “Xcode build: support passing parameters via response files” 4. Set Classification to “Serious Bug”
62. iOS Team 1. Go to bugreport.apple.com and report a new bug 2. Select Product > Developer Tools > Xcode 3. Set title “Xcode build: support passing parameters via response files” 4. Set Classification to “Serious Bug” 5. Set Reproducibility to “Always”
63. iOS Team 1. Go to bugreport.apple.com and report a new bug 2. Select Product > Developer Tools > Xcode 3. Set title “Xcode build: support passing parameters via response files” 4. Set Classification to “Serious Bug” 5. Set Reproducibility to “Always” 6. Copy description from wallapop.to/rdar-xcode
64. iOS Team rdar://50886131 wallapop.to/rdar-xcode Swift forum post wallapop.to/xcode-forum
65. iOS Team Bonus
66. iOS Team You can still use Objective-C
67. iOS Team Q&A wallapop si no lo usas, súbelo
68. iOS Team One more thing…
69. iOS Team Talk+
70. iOS Team 9.99€/talk
71. iOS Team Right here, right now