From e6bcbb39ffc573e0db10282e3fd390f5616e34a5 Mon Sep 17 00:00:00 2001
From: "Alinson S. Xavier" <git@axavier.org>
Date: Mon, 16 May 2022 15:24:20 -0500
Subject: [PATCH] GitHub Actions: Enable AVD cache

---
 .github/workflows/main.yml | 13 +++++++++++
 build.sh                   | 48 ++++++++++++++++++++++++++++++++++++--
 2 files changed, 59 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 12784ef18..b1c40ecc3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -59,6 +59,19 @@ jobs:
         echo "/usr/local/opt/moreutils/bin" >> $GITHUB_PATH
         echo "/usr/local/opt/coreutils/libexec/gnubin" >> $GITHUB_PATH
 
+    - name: AVD cache
+      uses: actions/cache@v3
+      id: avd-cache
+      with:
+        path: |
+          ~/.android/avd/*
+          ~/.android/adb*
+        key: avd-${{ matrix.api }}
+
+    - name: Setup AVD
+      if: steps.avd-cache.outputs.cache-hit != 'true'
+      run: ./build.sh android-setup ${{ matrix.api }}
+
     - name: Run Android Tests
       run: ./build.sh android-tests ${{ matrix.api }}
 
diff --git a/build.sh b/build.sh
index f72b38adb..7fd30d33e 100755
--- a/build.sh
+++ b/build.sh
@@ -15,6 +15,7 @@
 # You should have received a copy of the GNU General Public License along
 # with this program. If not, see <http://www.gnu.org/licenses/>.
 
+set -o xtrace
 cd "$(dirname "$0")" || exit
 
 ADB="${ANDROID_HOME}/platform-tools/adb"
@@ -70,7 +71,7 @@ core_build() {
 # Android
 # -----------------------------------------------------------------------------
 
-android_boot_attempt() {
+android_setup() {
     API=$1
     AVDNAME=${AVD_PREFIX}${API}
 
@@ -95,7 +96,15 @@ android_boot_attempt() {
     ) 10>/tmp/uhabitsTest.lock
 
     log_info "Launching emulator..."
-    $EMULATOR -avd $AVDNAME -port 6${API}0 1>/dev/null 2>&1 &
+    $EMULATOR \
+        -avd $AVDNAME \
+        -port 6${API}0 \
+        -no-window \
+        -gpu swiftshader_indirect \
+        -noaudio \
+        -no-boot-anim \
+        -camera-back none \
+        1>/dev/null 2>&1 &
 
     log_info "Waiting for emulator to boot..."
     export ADB="$ADB -s emulator-6${API}0"
@@ -114,6 +123,37 @@ android_boot_attempt() {
 
     log_info "Acquiring wake lock..."
     $ADB shell 'echo android-test > /sys/power/wake_lock' || return 1
+
+    log_info "Saving snapshot..."
+    $ADB emu avd snapshot save fresh-install
+}
+
+android_boot_attempt() {
+    API=$1
+    AVDNAME=${AVD_PREFIX}${API}
+
+    log_info "Stopping Android emulator..."
+    while [[ -n $(pgrep -f ${AVDNAME}) ]]; do
+        pkill -9 -f ${AVDNAME}
+    done
+
+    log_info "Launching emulator..."
+    $EMULATOR \
+        -avd $AVDNAME \
+        -port 6${API}0 \
+        -snapshot fresh-install \
+        -no-snapshot-save \
+        -wipe-data \
+        1>/dev/null 2>&1 &
+
+    log_info "Waiting for emulator to boot..."
+    export ADB="$ADB -s emulator-6${API}0"
+    sleep 5
+    timeout $BOOT_TIMEOUT $ADB wait-for-device shell 'while [[ -z "$(getprop sys.boot_completed)" ]]; do echo Waiting...; sleep 1; done; input keyevent 82'
+    if [ $? -ne 0 ]; then
+        log_error "Emulator failed to boot after $BOOT_TIMEOUT seconds."
+        return 1
+    fi
 }
 
 android_boot() {
@@ -301,6 +341,10 @@ main() {
             core_build
             android_build
             ;;
+        android-setup)
+            shift; _parse_opts "$@"
+            android_setup $1
+            ;;
         android-tests)
             shift; _parse_opts "$@"
             if [ -z $1 ]; then