Re-structure the file

.gitignore

@@ -1,7 +1,4 @@
-build/
-sdkconfig
-sdkconfig.old
 .vscode
-components/picoruby-esp32/mrb
+mrb
 .env
 

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "components/picoruby-esp32/picoruby"]
-	path = components/picoruby-esp32/picoruby
+[submodule "picoruby"]
+	path = picoruby
 	url = https://github.com/picoruby/picoruby.git

CMakeLists.txt

@@ -1,6 +1,68 @@
-# The following lines of boilerplate have to be in your project's
-# CMakeLists in this exact order for cmake to work correctly
-cmake_minimum_required(VERSION 3.16)
+idf_component_register(
+  SRCS
+    ${COMPONENT_DIR}/picoruby-esp32.c
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-machine/ports/esp32/machine.c
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-io-console/ports/esp32/io-console.c
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-filesystem-fat/ports/esp32/flash_disk.c
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-env/ports/esp32/env.c
+  INCLUDE_DIRS
+    ${COMPONENT_DIR}
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-mrubyc/lib/mrubyc/src
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-machine/include
+    ${COMPONENT_DIR}/picoruby/mrbgems/picoruby-filesystem-fat/ports/esp32
+  REQUIRES esp_driver_uart
+)
 
-include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(picoruby-esp32)
+add_definitions(
+  -DMRBC_TICK_UNIT=10
+  -DMRBC_TIMESLICE_TICK_COUNT=1
+  -DMRBC_USE_FLOAT=2
+  -DMRC_CUSTOM_ALLOC
+  -DMRBC_CONVERT_CRLF=1
+  -DNDEBUG
+)
+
+set(PICORUBY_DIR ${COMPONENT_DIR}/picoruby)
+set(LIBMRUBY_FILE ${PICORUBY_DIR}/build/esp32/lib/libmruby.a)
+
+# Build PicoRuby
+add_custom_command(
+  OUTPUT ${LIBMRUBY_FILE}
+  COMMAND ${CMAKE_COMMAND} -E echo "MRUBY_CONFIG=${IDF_TARGET_ARCH}-esp rake"
+  COMMAND ${CMAKE_COMMAND} -E env MRUBY_CONFIG=${IDF_TARGET_ARCH}-esp rake
+  WORKING_DIRECTORY ${PICORUBY_DIR}
+  COMMENT "PicoRuby build"
+  VERBATIM
+)
+
+add_prebuilt_library(
+  libmruby ${LIBMRUBY_FILE}
+  REQUIRES ${COMPONENT_NAME}
+)
+target_link_libraries(${COMPONENT_LIB} PRIVATE libmruby)
+
+add_custom_target(
+  picoruby DEPENDS ${LIBMRUBY_FILE}
+  DEPENDS ${LIBMRUBY_FILE}
+)
+add_dependencies(${COMPONENT_LIB} picoruby)
+
+# Compile Ruby files
+add_custom_target(
+  mrbdir ALL
+  COMMAND ${CMAKE_COMMAND} -E make_directory ${COMPONENT_DIR}/mrb
+)
+add_dependencies(${COMPONENT_LIB} mrbdir)
+
+set(RUBY_FILES main_task)
+set(PICORBC ${COMPONENT_DIR}/picoruby/bin/picorbc)
+
+foreach(rb ${RUBY_FILES})
+add_custom_target(${rb}
+  COMMAND ${PICORBC} -B${rb} -o${COMPONENT_DIR}/mrb/${rb}.c ${COMPONENT_DIR}/mrblib/${rb}.rb
+  DEPENDS mrbdir
+)
+endforeach(rb)
+
+add_custom_target(generate_files ALL DEPENDS mrbdir ${RUBY_FILES})
+add_dependencies(${COMPONENT_LIB} generate_files)