Disable Travis OS X and iOS testing (GH #570)

Travis is having infrastructure problems since it migrated in November 2017. Our OS X and iOS tests hang for days. When the current job hangs, new jobs that enter the queue later hang too because the original job is still waiting.

The subsequent hangs effect Android and Linux, too. Our Travis scripts test Android, Linux, OS X and iOS. A hang effects everything.

We are going to disable Travis OS X and iOS tests until things improve.

.travis.yml

@@ -51,15 +51,9 @@ matrix:
     - os: osx
       compiler: clang
       env: BUILD_MODE="ubsan"
-    # No iOS builds on Linux
-    - os: linux
-      env: BUILD_MODE="ios-arm"
-    - os: linux
-      env: BUILD_MODE="ios-arm64"
-    - os: linux
-      env: BUILD_MODE="ios-watch"
-    - os: linux
-      env: BUILD_MODE="ios-tv"
+    # Travis infrastructure problems, Issue 570
+    # Re-enable when OS X and iOS improves
+    - os: osx
 
   include:
     - os: linux
@@ -94,11 +88,18 @@ matrix:
       env:
         - BUILD_MODE=android
         - PLATFORM=x86_64
-
-  allow_failures:
     - os: osx
-      env: BUILD_MODE="ios-watch"
-
+      env:
+        - BUILD_MODE=ios
+        - PLATFORM=iPhoneOS
+    - os: osx
+      env:
+        - BUILD_MODE=ios
+        - PLATFORM=WatchOS
+    - os: osx
+      env:
+        - BUILD_MODE=ios
+        - PLATFORM=AppleTVOS
 
 before_install:
   - |
@@ -108,22 +109,9 @@ before_install:
 
 script:
   - |
-    if [[ "$BUILD_MODE" == "ios-arm" ]]; then
+    if [[ "$BUILD_MODE" == "ios" ]]; then
         cp ./TestScripts/setenv-ios.sh .
-        . ./setenv-ios.sh arm
-        make -f GNUmakefile-cross -j "$BUILD_JOBS"
-    elif [[ "$BUILD_MODE" == "ios-arm64" ]]; then
-        cp ./TestScripts/setenv-ios.sh .
-        . ./setenv-ios.sh arm64 -j "$BUILD_JOBS"
-        make -f GNUmakefile-cross
-    elif [[ "$BUILD_MODE" == "ios-watch" ]]; then
-        cp ./TestScripts/setenv-ios.sh .
-        . ./setenv-ios.sh watch
-        make -f GNUmakefile-cross -j "$BUILD_JOBS"
-    elif [[ "$BUILD_MODE" == "ios-tv" ]]; then
-        cp ./TestScripts/setenv-ios.sh .
-        . ./setenv-ios.sh tv
-        make -f GNUmakefile-cross -j "$BUILD_JOBS"
+        TestScripts/cryptest-ios.sh
     elif [[ "$BUILD_MODE" == "android" ]]; then
         cp ./TestScripts/setenv-android.sh .
         TestScripts/cryptest-android.sh

TestScripts/cryptest-ios.sh

@@ -10,7 +10,12 @@
 # See http://www.cryptopp.com/wiki/iOS_(Command_Line) for more details
 # ====================================================================
 
+if [ -z "${PLATFORM-}" ]; then
 	PLATFORMS=(iPhoneOS iPhoneSimulator WatchOS WatchSimulator AppleTVOS AppleTVSimulator)
+else
+	PLATFORMS=(${PLATFORM})
+fi
+
 for platform in ${PLATFORMS[@]}
 do
 	make -f GNUmakefile-cross distclean > /dev/null 2>&1