Added a new function for building multiple manpages at once.

Author: xvitaly

CMakeLists.txt

@@ -8,7 +8,7 @@
 # =============== Project initialization ===============
 # ======================================================
 
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.20)
 
 project(zswap-cli
     VERSION 0.9.1
@@ -235,9 +235,8 @@ if (BUILD_DOC)
 endif()
 
 if (BUILD_MANPAGE)
-    configure_file("assets/manpage/${APP_NAME}.md.in" "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.md" @ONLY)
-    build_manpage("${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.md" "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.1")
-    add_custom_target(${MAN_NAME} ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.1")
+    configure_file("assets/manpage/${APP_NAME}.md.in" "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.1.md" @ONLY)
+    pandoc_add_manpages(${MAN_NAME} FILES "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.1.md")
     install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${APP_NAME}.1" DESTINATION "${CMAKE_INSTALL_MANDIR}/man1")
 endif()
 

cmake/FindPandoc.cmake

@@ -13,14 +13,27 @@ if (BUILD_MANPAGE)
     )
     mark_as_advanced(Pandoc_EXECUTABLE)
 
-    function(build_manpage SrcName DestName)
+    function(_build_manpage _srcname _destname)
         add_custom_command(
-            OUTPUT "${DestName}"
+            OUTPUT "${_destname}"
             COMMAND "${Pandoc_EXECUTABLE}"
-            ARGS "${SrcName}" -s -t man -o "${DestName}"
-            DEPENDS "${SrcName}"
-            COMMENT "Building the ${DestName} manpage using Pandoc."
+            ARGS "${_srcname}" -s -t man -o "${_destname}"
+            DEPENDS "${_srcname}"
+            COMMENT "Building the manpage using Pandoc."
             VERBATIM
         )
     endfunction()
+
+    function(pandoc_add_manpages TargetName)
+        set(_arguments_options)
+        set(_arguments_one)
+        set(_arguments_multi FILES)
+        cmake_parse_arguments(_arguments "${_arguments_options}" "${_arguments_one}" "${_arguments_multi}" ${ARGN})
+        foreach(_srcfile IN LISTS _arguments_FILES)
+            cmake_path(REMOVE_EXTENSION _srcfile LAST_ONLY OUTPUT_VARIABLE _manfile)
+            list(APPEND _manfiles "${_manfile}")
+            _build_manpage("${_srcfile}" "${_manfile}")
+        endforeach()
+        add_custom_target(${TargetName} ALL DEPENDS ${_manfiles})
+    endfunction()
 endif()