From ec5fde6913935fbe2015220259b611a17a437de3 Mon Sep 17 00:00:00 2001
From: Adrian Negreanu <adrian.m.negreanu@intel.com>
Date: Tue, 28 Jul 2015 23:29:20 +0300
Subject: docs: add examples as a dependency of docs

---
 doc/CMakeLists.txt      | 13 ++++---------
 examples/CMakeLists.txt | 18 ++++++++++--------
 2 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 3279b83..805bd83 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -30,7 +30,6 @@ else()
 endif()
 
 set(DOC_INSTALL_DIR "share/doc/packages/doxygen" CACHE STRING "Relative path where to install the documentation")
-set(EXAMPLE_DIR ${TOP}/examples)
 set(DOC_FILES
         arch.doc
         archoverview.eps
@@ -95,7 +94,6 @@ file(COPY ${TOP}/VERSION                  DESTINATION ${PROJECT_BINARY_DIR}/)
 file(COPY ${TOP}/src/translator.h         DESTINATION ${PROJECT_BINARY_DIR}/src/)
 file(COPY ${TOP}/src/translator_adapter.h DESTINATION ${PROJECT_BINARY_DIR}/src/)
 file(COPY ${LANG_FILES}                   DESTINATION ${PROJECT_BINARY_DIR}/src/)
-file(COPY ${EXAMPLE_DIR}                  DESTINATION ${PROJECT_BINARY_DIR}/)
 
 foreach (f  ${DOC_FILES})
 add_custom_command(OUTPUT ${PROJECT_BINARY_DIR}/doc/${f}
@@ -134,15 +132,12 @@ set_source_files_properties(config.doc PROPERTIES GENERATED 1)
 add_custom_target(run_doxygen
         COMMENT "Generating Latex and HTML documentation."
         COMMAND ${DOXYGEN_EXECUTABLE}
-        DEPENDS ${PROJECT_BINARY_DIR}/doc/language.doc ${PROJECT_BINARY_DIR}/doc/config.doc ${OUT_DOC_FILES}
+        DEPENDS ${PROJECT_BINARY_DIR}/doc/language.doc ${PROJECT_BINARY_DIR}/doc/config.doc
+        DEPENDS ${OUT_DOC_FILES}
+        DEPENDS examples
+        DEPENDS doxygen
         WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/doc/
 )
-if (doxygen_BINARY_DIR)
-    # building from project `doxygen'
-    add_dependencies(run_doxygen
-       doxygen
-    )
-endif()
 
 add_custom_target(doxygen_pdf
         COMMENT "Generating Doxygen Manual PDF."
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index d689eda..e7b61a1 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -2,22 +2,24 @@ if (build_doc)
 
 file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/examples)
 file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/html/examples)
-file(GLOB EXAMPLE_FILES "*")
+file(GLOB EXAMPLE_FILES RELATIVE ${CMAKE_SOURCE_DIR}/examples "*")
 
 if (DOT)
   set(DIAGRAM_EXAMPLE ${PROJECT_BINARY_DIR}/html/examples/diagrams/html/index.html)
 endif()
 
-# copy all example files
-add_custom_target(copy_examples)
-foreach(example_file ${EXAMPLE_FILES})
-  add_custom_command(TARGET copy_examples PRE_BUILD
-                     COMMAND ${CMAKE_COMMAND} -E
-                         copy ${example_file} ${PROJECT_BINARY_DIR}/examples)
+foreach (f  ${EXAMPLE_FILES})
+    add_custom_command(
+        COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/examples/${f}" "${PROJECT_BINARY_DIR}/examples/"
+        DEPENDS "${CMAKE_SOURCE_DIR}/examples/${f}"
+        OUTPUT "${PROJECT_BINARY_DIR}/examples/${f}"
+    )
+    set_source_files_properties("${PROJECT_BINARY_DIR}/examples/${f}" PROPERTIES GENERATED 1)
+    list(APPEND OUT_EXAMPLE_FILES "${PROJECT_BINARY_DIR}/examples/${f}")
 endforeach()
 
 add_custom_target(examples
-	DEPENDS doxygen copy_examples
+  DEPENDS ${OUT_EXAMPLE_FILES}
                 ${PROJECT_BINARY_DIR}/html/examples/class/html/index.html
                 ${PROJECT_BINARY_DIR}/html/examples/define/html/index.html
                 ${PROJECT_BINARY_DIR}/html/examples/enum/html/index.html
-- 
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