early-access version 2853

externals/vcpkg/ports/portable-snippets/CMakeLists.txt

@@ -0,0 +1,96 @@
+cmake_minimum_required(VERSION 3.14)
+
+project(portable-snippets LANGUAGES C)
+
+include(GNUInstallDirs)
+
+option(PSNIP_INSTALL_HEADERS "Install header files" ON)
+
+# https://stackoverflow.com/questions/7787823/cmake-how-to-get-the-name-of-all-subdirectories-of-a-directory
+function (list_subdir output_variable path)
+    file(GLOB sub_entries RELATIVE ${path} ${path}/*)
+
+    set(dirlist "")
+
+    foreach (entry ${sub_entries})
+        if (IS_DIRECTORY ${path}/${entry})
+            list(APPEND dirlist ${entry})
+        endif ()
+    endforeach ()
+
+    set(${output_variable} ${dirlist} PARENT_SCOPE)
+endfunction ()
+
+function (check_if_header_only output_variable files)
+    set(is_header_only 1)
+
+    foreach (entry ${files})
+        get_filename_component(file_ext ${entry} EXT)
+        if (file_ext STREQUAL .c)
+            set(is_header_only 0)
+        endif ()
+    endforeach ()
+
+    set(${output_variable} ${is_header_only} PARENT_SCOPE)
+endfunction ()
+
+list_subdir(subdirs ${CMAKE_CURRENT_LIST_DIR})
+list(REMOVE_ITEM subdirs tests)
+
+set(namespace unofficial::portable-snippets)
+
+foreach (subdir ${subdirs})
+    set(module ${subdir})
+    set(module_path "${CMAKE_CURRENT_LIST_DIR}/${subdir}")
+
+    file(GLOB entries
+        LIST_DIRECTORIES false
+        ${module_path}/*.h
+        ${module_path}/*.c
+    )
+
+    check_if_header_only(header_only "${entries}")
+
+    if (header_only)
+        add_library(${module} INTERFACE)
+
+        target_include_directories(
+            ${module}
+            INTERFACE
+                $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+        )
+    else ()
+        add_library(${module} STATIC ${entries})
+
+        set_target_properties(
+            ${module}
+            PROPERTIES
+                PREFIX ""
+                OUTPUT_NAME "psnip-${module}"
+        )
+
+        target_include_directories(
+            ${module}
+            PUBLIC
+                $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}>
+                $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+        )
+
+        list(FILTER entries EXCLUDE REGEX "\.c$")
+    endif ()
+
+    add_library(${namespace}::${module} ALIAS ${module})
+
+    if (PSNIP_INSTALL_HEADERS)
+        install(FILES ${entries} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${subdir})
+    endif ()
+
+    install(TARGETS ${module} EXPORT unofficial-portable-snippets-config)
+endforeach ()
+
+install(
+    EXPORT unofficial-portable-snippets-config
+    NAMESPACE ${namespace}::
+    DESTINATION share/unofficial-portable-snippets
+    PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+)