Codesign only for non pull requests

.travis.yml

@@ -5,10 +5,8 @@ language: cpp
 env:
   global:
     - JOBS=4
-    # QT_FATAL_WARNINGS is turned off because Qt 5.11.3 throws a speech dispatcher not working warning when running unit tests
-    #- QT_FATAL_WARNINGS=1
     - SHADOW_BUILD_DIR=/tmp/shadow_build_dir
-    # ANDROID_STOREPASS
+    - CODESIGN=nocodesign
     - secure: RGovyUnMw3fp/bHZi058JvANT1rYmNqrsuSYew0cIgirO6YbMHr/rsjwCm1FTYpBl8s1zgr+u2b8ftYnfnCz2YT+Aip4NWrVYpVU0FEmfytGILrnUS0pjlt8m7fU9AKR1ElOSll7yw7e1kftynN39Q321etvwbLZcXon6zz0suE=
 
 jobs:
@@ -188,7 +186,8 @@ before_script:
     fi
     
   # Install signing cert into OSX keychain
-  - if [[ "${SPEC}" = "macx-clang" ]]; then
+  - if [[ "${SPEC}" = "macx-clang" && "${TRAVIS_PULL_REQUEST}" = "false" ]]; then
+        export CODESIGN=codesign &&
         openssl aes-256-cbc -K $MAC_CERT_KEY -iv $MAC_CERT_IV -in deploy/MacCertificates.p12.enc -out deploy/MacCertificates.p12 -d &&
         ./deploy/MacImportCert.sh;
     fi
@@ -203,7 +202,7 @@ script:
         echo "Daily build" &&
         export STABLE_OR_DAILY=DailyBuild;
     fi
-  - qmake -r ${TRAVIS_BUILD_DIR}/qgroundcontrol.pro CONFIG+=${CONFIG} CONFIG+=${STABLE_OR_DAILY} CONFIG+=codesign -spec ${SPEC};
+  - qmake -r ${TRAVIS_BUILD_DIR}/qgroundcontrol.pro CONFIG+=${CONFIG} CONFIG+=${STABLE_OR_DAILY} CONFIG+=${CODESIGN} -spec ${SPEC};
 
   # compile
   - if [ "${SPEC}" != "macx-ios-clang" ]; then