[portable-snippets] Add new port (#7783)

* [portable-snippets] Add new port

* [portable-snippets] Update to 2019-09-20

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
+)

ports/portable-snippets/CONTROL

@@ -0,0 +1,4 @@
+Source: portable-snippets
+Version: 2019-09-20
+Description: Collection of miscellaneous portable C snippets
+Homepage: https://github.com/nemequ/portable-snippets

ports/portable-snippets/portfile.cmake

@@ -0,0 +1,32 @@
+include(vcpkg_common_functions)
+
+vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO nemequ/portable-snippets
+    REF 26496acb37ab46ee249ea19d45381da6955d89c4
+    SHA512 6213b22e4358b06f92396731d94fd27d4cf3568a47c56c057174c1839929c6a569ad5b1e1302fe0d092c4f393c570607b96e9e977223f86a9e3c2862010f3af0
+    HEAD_REF master
+)
+
+file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS_DEBUG
+        -DPSNIP_INSTALL_HEADERS=OFF
+    OPTIONS_RELEASE
+        -DPSNIP_INSTALL_HEADERS=ON
+)
+
+vcpkg_install_cmake()
+
+vcpkg_fixup_cmake_targets(CONFIG_PATH share/unofficial-${PORT} TARGET_PATH share/unofficial-${PORT})
+
+# Handle copyright
+configure_file(${SOURCE_PATH}/COPYING.md ${CURRENT_PACKAGES_DIR}/share/${PORT}/copyright COPYONLY)
+
+# CMake integration test
+vcpkg_test_cmake(PACKAGE_NAME unofficial-${PORT})