cmake: extract add_manpage()

CMake/Manpage.cmake

@@ -0,0 +1,31 @@
+find_package(A2X REQUIRED)
+
+add_custom_target(man ALL)
+
+function(add_manpage name section)
+	add_custom_command(
+	OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${name}.${section}
+	COMMAND ${A2X_COMMAND}
+			--no-xmllint
+			--doctype manpage
+			--format manpage
+			-D ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+			${CMAKE_CURRENT_SOURCE_DIR}/${name}.${section}.txt
+	DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${name}.${section}.txt
+	COMMENT Generating manpage for ${name}.${section}
+	)
+
+	add_custom_target(man-${name}.${section}
+	DEPENDS
+		${CMAKE_CURRENT_BINARY_DIR}/${name}.${section}
+	)
+	add_dependencies(man
+		man-${name}.${section}
+	)
+
+	install(
+	FILES ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${name}.${section}
+	DESTINATION share/man/man${section}
+	COMPONENT documentation
+	)
+endfunction()

CMakeLists.txt

@@ -50,7 +50,6 @@ add_subdirectory(swaybar)
 
 find_package(XKBCommon REQUIRED)
 find_package(WLC REQUIRED)
-find_package(A2X REQUIRED)
 find_package(PCRE REQUIRED)
 find_package(Wayland REQUIRED)
 find_package(JsonC REQUIRED)
@@ -98,36 +97,7 @@ install(
 	COMPONENT configuration
 )
 
-add_custom_target(man ALL)
-
-function(add_manpage name section)
-	add_custom_command(
-	OUTPUT  ${CMAKE_CURRENT_BINARY_DIR}/${name}.${section}
-	COMMAND ${A2X_COMMAND}
-			--no-xmllint
-			--doctype manpage
-			--format manpage
-			-D ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-			${CMAKE_CURRENT_SOURCE_DIR}/${name}.${section}.txt
-	DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${name}.${section}.txt
-	COMMENT Generating manpage for ${name}.${section}
-	)
-
-	add_custom_target(man-${name}.${section}
-	DEPENDS
-		${CMAKE_CURRENT_BINARY_DIR}/${name}.${section}
-	)
-	add_dependencies(man
-		man-${name}.${section}
-	)
-
-	install(
-	FILES ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${name}.${section}
-	DESTINATION share/man/man${section}
-	COMPONENT documentation
-	)
-endfunction()
-
+include(Manpage)
 add_manpage(sway 1)
 add_manpage(sway 5)
 add_manpage(swaymsg 1)