Fixed ninja not found for NDK builds

Signed-off-by: Alexander Borsuk <me@alex.bio>

.github/workflows/android-beta.yaml

@@ -34,6 +34,13 @@ jobs:
         run: |
           sudo apt-get update -y
           sudo apt-get install -y ninja-build
+          # Hack needed to make ninja visible to cmake during NDK builds.
+          # See https://issuetracker.google.com/issues/206099937
+          CMAKE_DIR=$(dirname $(which cmake))
+          NINJA_DIR=$(dirname $(which ninja))
+          if [ "$CMAKE_DIR" != "$NINJA_DIR" ]; then
+            ln -s "$(which ninja)" "$CMAKE_DIR/ninja"
+          fi
 
       - name: Set up JDK 11
         uses: actions/setup-java@v1

.github/workflows/android-check.yaml

@@ -33,6 +33,13 @@ jobs:
         run: |
           sudo apt-get update -y
           sudo apt-get install -y ninja-build
+          # Hack needed to make ninja visible to cmake during NDK builds.
+          # See https://issuetracker.google.com/issues/206099937
+          CMAKE_DIR=$(dirname $(which cmake))
+          NINJA_DIR=$(dirname $(which ninja))
+          if [ "$CMAKE_DIR" != "$NINJA_DIR" ]; then
+            ln -s "$(which ninja)" "$CMAKE_DIR/ninja"
+          fi
 
       - name: Set up JDK 11
         uses: actions/setup-java@v1

.github/workflows/android-monkey.yaml

@@ -19,7 +19,7 @@ jobs:
         shell: bash
         run: |
           DIRS="android base drape drape_frontend editor ge0 map platform routing search shaders storage traffic transit"
-          if [ '${{ github.event_name }}' != 'schedule' ] || 
+          if [ '${{ github.event_name }}' != 'schedule' ] ||
              [ $(git rev-list --count --since="24 hours" HEAD $DIRS) -gt 0 ]; then
             echo "::set-output name=updated::true"
           else
@@ -40,6 +40,13 @@ jobs:
         run: |
           sudo apt-get update -y
           sudo apt-get install -y ninja-build
+          # Hack needed to make ninja visible to cmake during NDK builds.
+          # See https://issuetracker.google.com/issues/206099937
+          CMAKE_DIR=$(dirname $(which cmake))
+          NINJA_DIR=$(dirname $(which ninja))
+          if [ "$CMAKE_DIR" != "$NINJA_DIR" ]; then
+            ln -s "$(which ninja)" "$CMAKE_DIR/ninja"
+          fi
 
       - name: Set up JDK 11
         uses: actions/setup-java@v1

.github/workflows/android-release.yaml

@@ -75,6 +75,13 @@ jobs:
         run: |
           sudo apt-get update -y
           sudo apt-get install -y ninja-build
+          # Hack needed to make ninja visible to cmake during NDK builds.
+          # See https://issuetracker.google.com/issues/206099937
+          CMAKE_DIR=$(dirname $(which cmake))
+          NINJA_DIR=$(dirname $(which ninja))
+          if [ "$CMAKE_DIR" != "$NINJA_DIR" ]; then
+            ln -s "$(which ninja)" "$CMAKE_DIR/ninja"
+          fi
 
       - name: Set up JDK 11
         uses: actions/setup-java@v1