[Azure] Use `DEVELOPER_DIR` instead of `xcode-select`

azure-pipelines.yml

@@ -8,24 +8,23 @@ jobs:
     maxParallel: 10
     matrix:
       xcode901:
-        XCODE_APP: 'Xcode_9.0.1'
+        DEVELOPER_DIR: '/Applications/Xcode_9.0.1.app'
       xcode91:
-        XCODE_APP: 'Xcode_9.1'
+        DEVELOPER_DIR: '/Applications/Xcode_9.1.app'
       xcode92:
-        XCODE_APP: 'Xcode_9.2'
+        DEVELOPER_DIR: '/Applications/Xcode_9.2.app'
       xcode931:
-        XCODE_APP: 'Xcode_9.3.1'
+        DEVELOPER_DIR: '/Applications/Xcode_9.3.1.app'
       xcode941:
-        XCODE_APP: 'Xcode_9.4.1'
-        POD_LIB_LINT: 'true'
+        DEVELOPER_DIR: '/Applications/Xcode_9.4.1.app'
       xcode10:
-        XCODE_APP: 'Xcode_10'
+        DEVELOPER_DIR: '/Applications/Xcode_10.app'
         XCODE_FLAGS_FOR_TEST: -parallel-testing-enabled NO
   steps:
     - script: |
-        sudo xcode-select -s /Applications/$XCODE_APP.app
+        xcodebuild -version
         echo "##vso[task.setvariable variable=XCODE_FLAGS]-scheme Base32 $XCODE_FLAGS_FOR_TEST"
-      displayName: xcode-select & set XCODE_FLAGS
+      displayName: xcodebuild -version & set XCODE_FLAGS
     - script: >
         set -o pipefail &&
         xcodebuild $XCODE_FLAGS test |