travis osx

.travis.yml

@@ -151,6 +151,7 @@ matrix:
     - if [ $ARROW_CI_CPP_AFFECTED != "1" ] && [ $ARROW_CI_JAVA_AFFECTED != "1" ]; then exit; fi
     # If either C++ or Python changed, we must install the C++ libraries
     - git submodule update --init
+    - $TRAVIS_BUILD_DIR/ci/travis_install_osx.sh
     - $TRAVIS_BUILD_DIR/ci/travis_before_script_cpp.sh
     script:
     - $TRAVIS_BUILD_DIR/ci/travis_script_cpp.sh || travis_terminate 1
@@ -163,6 +164,7 @@ matrix:
     cache:
     addons:
     env:
+    - ARROW_TRAVIS_S3=1
     - ARROW_TRAVIS_PLASMA=1
     - ARROW_TRAVIS_USE_TOOLCHAIN=1
     - ARROW_BUILD_WARNING_LEVEL=CHECKIN
@@ -172,6 +174,7 @@ matrix:
     before_script:
     script:
     - if [ $ARROW_CI_PYTHON_AFFECTED != "1" ]; then exit; fi
+    - $TRAVIS_BUILD_DIR/ci/travis_install_osx.sh
     - $TRAVIS_BUILD_DIR/ci/travis_script_python.sh 3.6
   - name: "Java OpenJDK8 and OpenJDK11"
     language: cpp

ci/travis_install_osx.sh

@@ -41,3 +41,11 @@ if [ "$ARROW_CI_RUBY_AFFECTED" = "1" ]; then
   run_brew bundle --file=$TRAVIS_BUILD_DIR/c_glib/Brewfile --verbose
   rm ${brew_log_path}
 fi
+
+if [ "$ARROW_TRAVIS_S3" == "1" ]; then
+    # Download the Minio S3 server into PATH
+    S3FS_DIR=~/.local/bin/
+    mkdir -p $S3FS_DIR
+    wget --directory-prefix $S3FS_DIR https://dl.min.io/server/minio/release/darwin-amd64/minio
+    chmod +x $S3FS_DIR/minio
+fi