Consume YCM as a hard dependency

roboticslab-uc3m/questions-and-answers#55

.travis.yml

@@ -15,7 +15,7 @@ before_install:
   - if [ ! `git config --get user.name` ]; then `git config --global user.name 'Travis CI'`; fi
 
   #-- Set YARP branch on cron jobs
-  - '[[ "$TRAVIS_EVENT_TYPE" = cron ]] && export YARP_CHECKOUT=devel || export YARP_CHECKOUT=master'
+  - '[[ "$TRAVIS_EVENT_TYPE" = cron ]] && export ROBOTOLOGY_CHECKOUT=devel || export ROBOTOLOGY_CHECKOUT=master'
 
   #-- Register SSH deploy key for AMOR API private repository
   #-- https://gist.github.com/lukewpatterson/4242707#gistcomment-2382443
@@ -33,8 +33,16 @@ install:
   #-- Install Boost.Thread (AMOR API), Eigen3 (AMOR API and YARP) and GTest
   - sudo apt-get install libboost-thread-dev libeigen3-dev libgtest-dev
 
+  #-- Install YCM
+  - git clone --branch="$ROBOTOLOGY_CHECKOUT" https://github.com/robotology/ycm
+  - cd ycm && mkdir build && cd build
+  - cmake ..
+  - make -j$(nproc)
+  - sudo make install
+  - cd ../..
+
   #-- Install YARP
-  - git clone --branch="$YARP_CHECKOUT" https://github.com/robotology/yarp
+  - git clone --branch="$ROBOTOLOGY_CHECKOUT" https://github.com/robotology/yarp
   - cd yarp && mkdir build && cd build
   - cmake .. -DSKIP_ACE=ON -DCREATE_LIB_MATH=ON
   - make -j$(nproc)

CMakeLists.txt

@@ -37,13 +37,22 @@ endif()
 
 # Pick up our cmake modules.
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake
-                              ${CMAKE_SOURCE_DIR}/cmake/find-modules
-                              ${CMAKE_SOURCE_DIR}/cmake/ycm-modules)
+                              ${CMAKE_SOURCE_DIR}/cmake/find-modules)
 
-# Bootstrap YCM.
-# https://github.com/robotology/ycm/issues/118
-set(YCM_TAG v0.6.0)
-include(YCMBootstrap)
+# Find project's hard dependencies.
+find_package(YCM 0.6 REQUIRED)
+find_package(YARP REQUIRED)
+find_package(COLOR_DEBUG REQUIRED)
+
+# Load YARP modules.
+if(YARP_VERSION_SHORT VERSION_LESS 2.3.70)
+    list(APPEND CMAKE_MODULE_PATH ${YARP_MODULE_PATH})
+    include(YarpPlugin)
+    include(YarpInstallationHelpers)
+endif()
+
+# Configure installation paths for YARP resources.
+yarp_configure_external_installation(roboticslab-kinematics-dynamics WITH_PLUGINS)
 
 # Standard installation directories.
 include(GNUInstallDirs)
@@ -66,20 +75,6 @@ endif()
 # Store list of exported targets in global scope.
 set_property(GLOBAL PROPERTY ROBOTICSLAB_KINEMATICS_DYNAMICS_TARGETS)
 
-# Find project's hard dependencies.
-find_package(COLOR_DEBUG REQUIRED)
-find_package(YARP REQUIRED)
-
-# Load YARP modules.
-if(YARP_VERSION_SHORT VERSION_LESS 2.3.70)
-    list(APPEND CMAKE_MODULE_PATH ${YARP_MODULE_PATH})
-    include(YarpPlugin)
-    include(YarpInstallationHelpers)
-endif()
-
-# Configure installation paths for YARP resources.
-yarp_configure_external_installation(roboticslab-kinematics-dynamics WITH_PLUGINS)
-
 # Create targets if specific requirements are satisfied.
 include(CMakeDependentOption)