ARROW-5407: [C++] Allow building only integration test targets

Author: Antoine Pitrou <[email protected]>

Closes #4458 from pitrou/ARROW-5407-build-integration-cpp and squashes the following commits:

a35c7345b <Antoine Pitrou> ARROW-5407:  Allow building only integration test targets

.travis.yml

@@ -233,19 +233,23 @@ matrix:
     env:
     - ARROW_TRAVIS_USE_TOOLCHAIN=1
     - ARROW_TRAVIS_FLIGHT=1
-    - ARROW_TRAVIS_PLASMA=1
-    - ARROW_TRAVIS_PLASMA_JAVA_CLIENT=1
-    - ARROW_TRAVIS_USE_TOOLCHAIN=1
+    - ARROW_TRAVIS_INTEGRATION=1
+    # TODO(ARROW-4764): Using system java and plasma built with conda doesn't work
+    #- ARROW_TRAVIS_PLASMA=1
+    #- ARROW_TRAVIS_PLASMA_JAVA_CLIENT=1
     before_script:
     - if [ $ARROW_CI_INTEGRATION_AFFECTED != "1" ]; then exit; fi
     - $TRAVIS_BUILD_DIR/ci/travis_install_clang_tools.sh
     - $TRAVIS_BUILD_DIR/ci/travis_install_linux.sh
+    # C++: Only build integration targets
+    - export ARROW_CPP_BUILD_TARGETS=arrow-integration
+    - export ARROW_TRAVIS_OPTIONAL_INSTALL=1
+    - $TRAVIS_BUILD_DIR/ci/travis_before_script_cpp.sh
+    # Javascript
     - nvm install 11.12
     - $TRAVIS_BUILD_DIR/ci/travis_before_script_js.sh
-    - $TRAVIS_BUILD_DIR/ci/travis_before_script_cpp.sh
     script:
     - $TRAVIS_BUILD_DIR/ci/travis_script_integration.sh
-    # TODO(ARROW-4764): Using system java and plasma built with conda doesn't work
     # - $TRAVIS_BUILD_DIR/ci/travis_script_plasma_java_client.sh
   - name: "NodeJS"
     language: node_js

ci/travis_before_script_cpp.sh

@@ -51,6 +51,7 @@ pushd $ARROW_CPP_BUILD_DIR
 CMAKE_COMMON_FLAGS="\
 -DCMAKE_INSTALL_PREFIX=$ARROW_CPP_INSTALL \
 -DARROW_NO_DEPRECATED_API=ON \
+-DARROW_INSTALL_NAME_RPATH=OFF \
 -DARROW_EXTRA_ERROR_CONTEXT=ON"
 CMAKE_LINUX_FLAGS=""
 CMAKE_OSX_FLAGS="\
@@ -63,17 +64,15 @@ fi
 
 if [ $only_library_mode == "yes" ]; then
   CMAKE_COMMON_FLAGS="\
-$CMAKE_COMMON_FLAGS \
--DARROW_BUILD_UTILITIES=OFF \
--DARROW_INSTALL_NAME_RPATH=OFF"
+    $CMAKE_COMMON_FLAGS \
+    -DARROW_BUILD_UTILITIES=OFF"
 else
   CMAKE_COMMON_FLAGS="\
-$CMAKE_COMMON_FLAGS \
--DARROW_BUILD_BENCHMARKS=ON \
--DARROW_BUILD_TESTS=ON \
--DARROW_BUILD_EXAMPLES=ON \
--DARROW_BUILD_UTILITIES=ON \
--DARROW_INSTALL_NAME_RPATH=OFF"
+    $CMAKE_COMMON_FLAGS \
+    -DARROW_BUILD_BENCHMARKS=ON \
+    -DARROW_BUILD_TESTS=ON \
+    -DARROW_BUILD_EXAMPLES=ON \
+    -DARROW_BUILD_UTILITIES=ON"
 fi
 
 ARROW_CXXFLAGS=""
@@ -91,6 +90,10 @@ if [ "$ARROW_TRAVIS_FLIGHT" == "1" ]; then
   CMAKE_COMMON_FLAGS="$CMAKE_COMMON_FLAGS -DARROW_FLIGHT=ON"
 fi
 
+if [ "$ARROW_TRAVIS_INTEGRATION" == "1" ]; then
+  CMAKE_COMMON_FLAGS="$CMAKE_COMMON_FLAGS -DARROW_BUILD_INTEGRATION=ON"
+fi
+
 if [ "$ARROW_TRAVIS_PLASMA" == "1" ]; then
   CMAKE_COMMON_FLAGS="$CMAKE_COMMON_FLAGS -DARROW_PLASMA=ON"
 fi