AND-116: SDK size reporting (APK comparison)

[andremion]

🎯 Goal

Show SDK size badges in the README file, e.g.:

Compare sizes before and after a PR and show them in a comparison table as a PR comment, e.g.:

SDK	Before	After	Difference	Status
stream-chat-android-client	2.68 MB	2.68 MB	0.00 MB	🟢

Max tolerance is 500 KB
Fine tolerance is 250 KB

if the difference is less than zero, then the status is 🚀
if the difference is greater or equal to the max tolerance, then the status is 🔴
if the difference is greater or equal to the fine tolerance, then the status is 🟡
otherwise, the status is 🟢

Sizes are calculated for the following SDKs:

• stream-chat-android-client
• stream-chat-android-offline
• stream-chat-android-ui-components
• stream-chat-android-compose

🛠 Implementation details

• There are two metrics Android application projects for each SDK:

  • One is used as a baseline, and the other includes the SDK

• The size calculation is achieved by comparing a baseline APK with an APK that includes the SDK

• The comparison task is triggered on every push request

• The metrics update is triggered on every merge to develop

🎉 GIF

[github-actions]

SDK Size Comparison 📏

SDK	Before	After	Difference	Status
stream-chat-android-client	3.04 MB	3.04 MB	0.00 MB	🟢
stream-chat-android-offline	3.25 MB	3.25 MB	0.00 MB	🟢
stream-chat-android-ui-components	7.91 MB	7.91 MB	0.00 MB	🟢
stream-chat-android-compose	9.04 MB	9.04 MB	0.00 MB	🟢