[ci] bump Xcode version on Azure (#1941)

* fixed xcode version

* fixed brew on Travis

* fixed brew on Azure Pipelines

.ci/setup.sh

@@ -5,7 +5,7 @@ if [[ $OS_NAME == "macos" ]]; then
         brew install libomp
         brew upgrade cmake  # CMake >=3.12 is needed to find OpenMP at macOS
         if [[ $AZURE == "true" ]]; then
-            sudo xcode-select -s /Applications/Xcode_8.3.1.app/Contents/Developer
+            sudo xcode-select -s /Applications/Xcode_8.3.3.app/Contents/Developer
         fi
     else
         if [[ $TRAVIS == "true" ]]; then

.travis.yml

@@ -38,6 +38,7 @@ matrix:
 before_install:
   - test -n $CC  && unset CC
   - test -n $CXX && unset CXX
+  - export HOMEBREW_LOGS="$HOME/brew_logs"  # brew hotfix 
   - export HOME_DIRECTORY="$HOME"
   - export BUILD_DIRECTORY="$TRAVIS_BUILD_DIR"
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then

.vsts-ci.yml

@@ -107,6 +107,7 @@ jobs:
     inputs:
       updateConda: false
   - script: |
+      echo "##vso[task.setvariable variable=HOMEBREW_LOGS]$AGENT_HOMEDIRECTORY/brew_logs"
       echo "##vso[task.setvariable variable=HOME_DIRECTORY]$AGENT_HOMEDIRECTORY"
       echo "##vso[task.setvariable variable=BUILD_DIRECTORY]$BUILD_SOURCESDIRECTORY"
       echo "##vso[task.setvariable variable=OS_NAME]macos"