Create a BUILD.bazel file for the extensions package in the utility module

This task is part of the build system migration from Gradle to Bazel.

Prerequesites

• Make sure you are able to build Oppia using Bazel
• Follow the Oppia Bazel Setup instructions to setup Bazel and learn the terminology.
• Read the Gradle Bazel Migration Best Practies and FAQ for more context and see if there’s an answer there to any question you have.

Task

1. Create a BUILD.bazel file in

src/main/java/org/oppia/android/util/extensions/

1. Define the kt_android_library library/libraries

Based on the imports in the Kotlin files, add the required third_party dependencies to make the libraries build. Check the Useful links section for a list of third_party dependencies.

You can start with the following BUILD.bazel stub

"""
Add a description of the package here
"""

load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kt_android_library")

kt_android_library(
    name = "bundle_extensions",
    srcs = [
        "BundleExtensions.kt",
    ],
)

kt_android_library(
    name = "live_data_ext",
    srcs = [
        "LiveDataExt.kt",
    ],
)

Note: live_data_ext might not be used anywhere.

1. Add the directory to the MIGRATED_PROD_FILES of the module’s root BUILD.bazel file

2. Add the libraries to the list of deps dependencies in the targets that require the library

You will have to set the apropriate visbility. See the list of visibilities in the link below.

1. Clean up any unused deps dependencies

2. Verify that the app builds

Useful links

• BUILD.bazel files
• Visibilities
• third_party dependencies

[Victor-Titan]

I’m sorry, I found my mistake. I forgot to convert the ‘.’ and the ‘:’ to ‘_’. The app builds now. Will make a PR shortly.

[FareesHussain]

Yes, the format of the third party dependencies is not obvious. I can update the instructions next time to include their converted names.

Yes, It’s already mentioned here. https://github.com/oppia/oppia-android/blob/0a374bdde6b9d73f50ea800ebade891aa23e888e/third_party/versions.bzl#L10-L13