From 4c96e62129b03193d7eca92ac408ba3c2a74c69e Mon Sep 17 00:00:00 2001
From: fef <owo@fef.moe>
Date: Mon, 26 Jul 2021 22:58:51 +0200
Subject: [PATCH] doc: use doxygen-awesome theme

---
 .gitmodules             |  3 +++
 CMakeLists.txt          | 11 +++++++++++
 doc/Doxyfile.in         |  2 +-
 doc/doxygen-awesome.css |  1 +
 4 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 .gitmodules
 create mode 120000 doc/doxygen-awesome.css

diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..b495f86
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "contrib/doxygen-awesome-css"]
+	path = contrib/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0c58744..b713d26 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,17 @@ endif()
 
 find_package(Git QUIET)
 if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
+    option(GIT_SUBMODULE "Update git submodules during build" ON)
+    if(GIT_SUBMODULE)
+        message(STATUS "Git submodule update")
+        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
+                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                        RESULT_VARIABLE GIT_SUBMOD_RESULT)
+        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
+            message(FATAL_ERROR "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
+        endif()
+    endif()
+
     execute_process(
         COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 98f12e2..36fd8cf 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -1245,7 +1245,7 @@ HTML_STYLESHEET        =
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  =
+HTML_EXTRA_STYLESHEET  = @CMAKE_CURRENT_SOURCE_DIR@/doxygen-awesome.css
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
diff --git a/doc/doxygen-awesome.css b/doc/doxygen-awesome.css
new file mode 120000
index 0000000..fcded53
--- /dev/null
+++ b/doc/doxygen-awesome.css
@@ -0,0 +1 @@
+../contrib/doxygen-awesome-css/doxygen-awesome.css
\ No newline at end of file