Effective Gradle Scripts for Android Projects

Writing better gradle scripts for large and complex android apps. Captured best practices applied in revamping gradle scripts for Dailyhunt app which has 35 modules, few custom tasks and lots of dependencies. Intention is to capture not just speed boosters, but solutions to keep scripts files simpler, smart and well maintained.

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2. Image Processing Library
3. Image Processing Library Supports GIF animations
4. Image Processing Library Supports GIF animations Allows lot of configuration
5. Image Processing Library Supports GIF animations Allows lot of configuration Maintained by Googlers
6. Image Processing Library Supports GIF animations Allows lot of configuration Maintained by Googlers Open source @Github
10. E F F E C T I V E GRADLE SCRIPTS FOR ANDROID PROJECTS
12. https://github.com/babuasp2003/glide/tree/better_scripts
13. Item 1: Break your code!
14. 1 module 1 package 1 java file
15. 1 module 1 package few java files
16. 1 module few packages more java files
17. few modules lot more packages many more java files
18. lot of modules lot more packages countless java files
19. Module ownership is a challenge
20. Module ownership is a challenge Code reviews became difficult
21. Module ownership is a challenge Code reviews became difficult Gradle takes forever to build
22. Create multiple smaller projects
23. Create multiple smaller projects Upload module aars to local maven
24. Create multiple smaller projects Upload module aars to local maven Reference dependencies remotely
25. Glide project
26. Only flickr stuff
27. Everything else
28. End structure
29. Item 2: Composite builds
31. A composite build is simply a build that includes other builds.
32. A composite build is simply a build that includes other builds. settings.gradle
33. + Compose multiple random builds
34. + Compose multiple random builds + Will be useful for large projects
35. + Compose multiple random builds + Will be useful for large projects - Only from Gradle version (3.x)
36. + Compose multiple random builds + Will be useful for large projects - Only from Gradle version (3.x) - Not yet in Android Studio :(
37. Item 3: Declare Dependencies
38. Good old direct entries
39. Setting versions in root build.gradle
40. dependency.gradle build.gradle
41. + Enable single place ver. update
42. + Enable single place ver. update + Can use no-op lib for debugging
43. + Enable single place ver. update + Can use no-op lib for debugging - Lib updates will not show up auto
44. Item 4: Secure passwords
45. Teams might work from diff sites
46. Teams might work from diff sites There could be freelancers
47. Teams might work from diff sites There could be freelancers Some might return from US
48. Load password from env. variables
49. Item 5: (Flavor)Dimension
51. + When new config needed (less)
52. + When new config needed (less) + Can inherit basic properties
53. + When new config needed (less) + Can inherit basic properties - Can increase build time
54. Exclude redundant combinations
55. Removed!
56. Item 6: Build Performance
57. Measure!
58. --profile
59. - Does not work for regular info - Some devs might have slow laptop
60. Build scan
61. Optimize it...
62. Dex options (ci vs dev)
63. Grade Properties (ci vs dev)
64. E F F E C T I V E GRADLE SCRIPTS FOR ANDROID PROJECTS
65. Item 7: Don’t use Gradle
66. Item 7: Buck build for Dev
67. OkBuck
68. + Gradle plugin to gen. Buck rules
69. + Gradle plugin to gen. Buck rules + Buck wrapper based on Gradle
70. + Gradle plugin to gen. Buck rules + Buck wrapper based on Gradle + Many times faster than Gradle
71. + Gradle plugin to gen. Buck rules + Buck wrapper based on Gradle + Many times faster than Gradle - Not supported by Google
72. as valuable as
73. THANKS Arun Babu A S P https://yourstory.com/2016/09/arun-babu-story/