prometheus-exporter with CMake

[StevenYCChou]

I'd like to build with prometheus-exporter with CMake, which should be part of #244

I plan to add prometheus-exporter into CMake support on https://github.com/StevenYCChou/opencensus-cpp/tree/ycchou-add-prometheus-exporter-cmake .

I tempted to build only prometheus-cpp's core library, but when I pass

-DENABLE_PUSH=OFF -DENABLE_PULL=OFF -DENABLE_COMPRESSION=OFF -DENABLE_TESTING=OFF

through CMAKE_ARGS, it doesn't really disable testing and compression for build time. The error message is:

% cmake CMakeLists.txt                       
-- Dependency: abseil
-- Configuring done
-- Generating done
-- Build files have been written to: /Codes/opencensus-cpp/abseil-download
[100%] Built target abseil_project
-- Configuring done
-- Generating done
-- Build files have been written to: /Codes/opencensus-cpp/prometheus-download
[100%] Built target prometheus_cpp_project
-- Could NOT find GoogleBenchmark (missing: GoogleBenchmark_LIBRARY GoogleBenchmark_INCLUDE_DIR) 
CMake Error at /usr/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
Call Stack (most recent call first):
  /usr/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/cmake-3.10/Modules/FindZLIB.cmake:112 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  prometheus-src/pull/CMakeLists.txt:9 (find_package)


-- Configuring incomplete, errors occurred!
See also "/Codes/opencensus-cpp/CMakeFiles/CMakeOutput.log".
See also "/Codes/opencensus-cpp/CMakeFiles/CMakeError.log".

Am I doing anything wrong?

[StevenYCChou]

Just solved the problem by setting cmake options for prometheus-cpp.

[g-easy]

Is this issue resolved?

[StevenYCChou]

yes, the issue is solved. Thanks for supporting initial change on CMake support and the feedback on #249, @g-easy. Will close this issue.