Add make install and make uninstall rules to cmake (#196)

CMakeLists.txt

@@ -4,6 +4,8 @@ option(APPVEYOR_BUILD "Build on appveyor" OFF)
 
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
+include(GNUInstallDirs)
+
 # Include Qt basic functions
 include(QtCommon)
 
@@ -337,3 +339,24 @@ else()
     add_executable (nheko ${OS_BUNDLE} ${NHEKO_DEPS})
     target_link_libraries (nheko ${NHEKO_LIBS} Qt5::Multimedia)
 endif()
+
+if(UNIX AND NOT APPLE)
+    install (TARGETS nheko RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
+    install (FILES "resources/nheko-16.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/16x16/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-32.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/32x32/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-48.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/48x48/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-64.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/64x64/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-128.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/128x128/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-256.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/256x256/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko-512.png" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/512x512/apps" RENAME "nheko.png")
+    install (FILES "resources/nheko.desktop" DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications")
+
+    if(NOT TARGET uninstall)
+        configure_file(
+	    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
+            "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+            IMMEDIATE @ONLY)
+        add_custom_target(uninstall
+            COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+    endif()
+endif()

cmake/cmake_uninstall.cmake.in

@@ -0,0 +1,21 @@
+if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+    message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
+endif(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+
+file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach(file ${files})
+    message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+    if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        exec_program(
+            "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+            OUTPUT_VARIABLE rm_out
+            RETURN_VALUE rm_retval
+            )
+        if(NOT "${rm_retval}" STREQUAL 0)
+            message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+        endif(NOT "${rm_retval}" STREQUAL 0)
+    else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+    endif(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+endforeach(file)