How to launch conan install from cmake

It is possible to launch conan install from cmake, which can be convenient for end users, package consumers, that are not creating packages themselves.

This is work under testing. Please try it and give feedback or contribute. The CMake code to do this task is here: https://github.com/conan-io/cmake-conan

To be able to use it, you can directly download the code from your CMake script:

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(myproject CXX)

# Download automatically, you can also just copy the conan.cmake file
if(NOT EXISTS "${CMAKE_BINARY_DIR}/conan.cmake")
   message(STATUS "Downloading conan.cmake from https://github.com/conan-io/cmake-conan")
   file(DOWNLOAD "https://raw.githubusercontent.com/conan-io/cmake-conan/master/conan.cmake"
                  "${CMAKE_BINARY_DIR}/conan.cmake")
endif()

include(${CMAKE_BINARY_DIR}/conan.cmake)

conan_cmake_run(REQUIRES Catch2/2.6.0@catchorg/stable
                BASIC_SETUP)

add_executable(main main.cpp)
target_link_libraries(main ${CONAN_LIBS})

If you want to use targets, you could do:

include(conan.cmake)
conan_cmake_run(REQUIRES Catch2/2.6.0@catchorg/stable
                BASIC_SETUP CMAKE_TARGETS)

add_executable(main main.cpp)
target_link_libraries(main CONAN_PKG::Hello)