It Depends: Dealing with dependency troubles in your Symfony application

When your Symfony application grows or when you maintain multiple applications that reuse code, you probably maintain some shared library and/or bundle. Even if you don’t, you are likely using bundles and libraries from the Symfony- and PHP-ecosystem. Chances are that you run into issues with dependencies, especially now with PHP 8.1 and Symfony 6. How can you avoid dependencies blocking your upgrade and what can you do as a maintainer to make sure you don’t block others? That is not an easy question, but package design principles are a good way to start.

In this talk we will discuss package design principles and how Symfony and other popular PHP packages implement or deviate from them and how it affects users and maintainers. We will look at how PHP open source projects have dealt with dependencies blocking them and have a look at some of the famous problems from JS and NPM and what lessons we can learn from them. Hopefully, at the end you will be well prepared for upgrading your own libraries, bundles and applications and know how to confidently handle dependency issues in the future.

Transcript

1. It Depends Dealing with dependency troubles in your Symfony application
2. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 2
3. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 3
4. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 4
5. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 5
6. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 6 Denis Brumann @dbrumann Solutions Architect
7. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 7
8. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 8
9. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 9
10. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 10
11. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 11
12. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 12
13. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 13
14. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 14
15. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 15
16. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 16
17. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 17
18. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 18
19. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 19
20. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 20
21. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 21
22. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 22
23. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 23
24. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 24
25. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 25
26. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 26
27. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 27
28. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 28
29. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 29
30. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 30
31. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 31
32. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 32
33. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 33
34. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 34
35. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 35
36. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 36
37. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 37 Version PHP 2.1 ^7.1 2.2 ^7.2 2.3 ^7.4 2.11 ~7.4.1 || ~8.0.0
38. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 38
39. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 39
40. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 40
41. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 41
42. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 42
43. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 43
44. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 44
45. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 45
46. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 46
47. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 47
48. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 48
49. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 49
50. Denis Brumann @dbrumann denis.brumann@qossmic.com Dealing with dependency troubles in your Symfony application 50