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Updating the Gradle version used in flutter/engine repo

engine/src/flutter/tools/gradle/README.md

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Updating the Gradle version used in flutter/engine repo

The instructions in this README explain how to create a CIPD package that contains the Gradle build-time dependency of the Android embedding of the engine. The Android embedder is shipped to Flutter end-users, but Gradle is not.

Requirements

  1. Ensure that you have Depot tools on your path. If you have a flutter/engine checkout, then you should already have it on your path.
  2. Ensure that you have write access for CIPD. See go/flutter-luci-cipd for instructions on how to request access.

Steps to download and verify new Gradle version

These steps use Gradle version 7.5.1 as an example. Please replace 7.5.1 with the actual Gradle version that you wish to use.

  1. Download the new version of Gradle you'd like from the Gradle website. Please download the "complete" version.
  2. Verify the checksum. To do this, first check the checksum of the complete (-all) ZIP Gradle version you downloaded from https://gradle.org/release-checksums/. Then, run shasum -a 256 gradle-7.5.1-all.zip to check the checksum of the Gradle version you downloaded. Verify that the checksum outputted by this command and the one from the Gradle website match.
  3. Unzip the Gradle download into a folder by running unzip gradle-7.5.1-all.zip.

Steps to upload new Gradle version to CIPD

These steps use Gradle version 7.5.1 as an example. Please replace 7.5.1 with the actual Gradle version that you downloaded and verified.

  1. Authenticate with CIPD by running cipd auth-login.
  2. Run cipd create -in gradle-7.5.1 -install-mode copy -tag version:7.5.1 -name flutter/gradle to upload the new Gradle version to CIPD.
  3. Update the DEPS Gradle entry (which should look something like this) to contain the tag from the command above (version:7.5.1).
  4. Run gclient sync to verify that the dependency can be fetched.