From 2c6d38e24ef725a7c012748cb91380fc9b30483f Mon Sep 17 00:00:00 2001
From: Dustin Lam <dustinlam@google.com>
Date: Wed, 26 Jan 2022 17:27:32 -0800
Subject: [PATCH] Use exact version of NDK needed by presubmit in Github
 Actions

It is required to install ninja manually due to it not being included in
the virtual env provided by Github Actions runner.

See https://github.com/actions/virtual-environments/issues/741

In order for Ninja to be visible to CMake during NDK builds, it must be
installed in the same subdirectory, so for now it is symlinked on Linux
builds. See b/206099937

Fixes: 216535050
Test: Github CI
Change-Id: I1a741b1765822f0004adc3985b7babc8022046a5
---
 .github/workflows/presubmit.yml | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/.github/workflows/presubmit.yml b/.github/workflows/presubmit.yml
index 1b9652b59464f..98d833fee219a 100644
--- a/.github/workflows/presubmit.yml
+++ b/.github/workflows/presubmit.yml
@@ -164,12 +164,33 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: "11"
+      # Required for CMake when building workmanager.
+      - name: "Install Ninja"
+        run: |
+          set -x
+          if [ "$RUNNER_OS" == "Linux" ]; then
+            # Should use version 1.10.2 but it is not available on apt yet.
+            apt-cache madison ninja-build
+            sudo apt-get install ninja-build=1.10.1
+          elif [ "$RUNNER_OS" == "macOS" ]; then
+            brew install ninja
+          elif [ "$RUNNER_OS" == "Windows" ]; then
+            choco install ninja
+          else
+            echo "Failed to install ninja due to unsupport OS: $RUNNER_OS"
+            exit 1
+          fi
+          # See b/206099937. Hack needed to make ninja visible to cmake during NDK builds
+          if [ ! -e "/usr/local/bin/ninja" ]; then
+            ln -s "/usr/bin/ninja" "/usr/local/bin/ninja"
+          fi
 
       - name: "Set environment variables"
         shell: bash
         run: |
           set -x
           echo "DIST_DIR=$HOME/dist" >> $GITHUB_ENV
+          echo "ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/23.1.7779620" >> $GITHUB_ENV
       # gradle action loads the dependencies cache only on the first run based on arguments.
       # to control it, we explicitly invoke it once which makes it load the dependencies cache with the parameters
       # we control