Silence unzip when extracting Android SDK

Author: gnzlbg

ci/android-install-sdk.sh

@@ -22,7 +22,7 @@ SDK=4333796
 API=25
 mkdir sdk
 curl --retry 10 https://dl.google.com/android/repository/sdk-tools-linux-${SDK}.zip -O
-unzip -d sdk sdk-tools-linux-${SDK}.zip
+unzip -q -d sdk sdk-tools-linux-${SDK}.zip
 
 case "$1" in
   arm | armv7)
@@ -57,7 +57,10 @@ echo '#Fri Nov 03 10:11:27 CET 2017 count=0' >> /root/.android/repositories.cfg
 yes | ./sdk/tools/bin/sdkmanager --list --verbose
 
 # --no_https avoids
-     # javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: No trusted certificate found
+# javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: No trusted certificate found
+#
+# | grep -v = || true    removes the progress bar output from the sdkmanager
+# which produces an insane amount of output.
 yes | ./sdk/tools/bin/sdkmanager --licenses --no_https | grep -v = || true
 yes | ./sdk/tools/bin/sdkmanager --no_https \
         "emulator" \