cmake: add support for building and installing documentation

CMakeLists.txt

@@ -151,6 +151,7 @@ include_directories(
 add_subdirectory(lib)
 add_subdirectory(src)
 add_subdirectory(tools)
+add_subdirectory(doc)
 
 # Show feature summary
 add_feature_info(HOOKS  WITH_HOOKS  "Build with support for processing hook plugins")

doc/CMakeLists.txt

@@ -0,0 +1,38 @@
+# CMakeLists.txt.
+#
+# @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+# @copyright 2018, Institute for Automation of Complex Power Systems, EONERC
+# @license GNU General Public License (version 3)
+#
+# VILLASnode
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+###################################################################################
+
+add_custom_target(doc
+	COMMAND doxygen ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+	DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+	WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+)
+
+configure_file(
+	Doxyfile.in
+	${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+)
+
+install(
+	DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html
+	DESTINATION share/villas/node/doc
+	COMPONENT doc
+)

doc/Doxyfile.in

@@ -58,7 +58,7 @@ PROJECT_LOGO           = doc/pictures/villas_node.svg
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = build/doc/
+OUTPUT_DIRECTORY       = @CMAKE_CURRENT_BINARY_DIR@
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and