Read and pass config to mruby class

Makefile

@@ -1,5 +1,6 @@
 current_dir := $(shell pwd)
-SRCS := $(wildcard tools/xkremap/*.[ch])
+CSRCS := $(wildcard tools/xkremap/*.[ch])
+RBSRCS := $(wildcard mrblib/xkremap/*.rb)
 .PHONY: all
 
 all: xkremap
@@ -11,5 +12,5 @@ mruby:
 	curl -L --fail --retry 3 --retry-delay 1 https://github.com/mruby/mruby/archive/1.2.0.tar.gz -s -o - | tar zxf -
 	mv mruby-1.2.0 $@
 
-mruby/build/host/bin/xkremap: mruby build_config.rb $(SRCS)
+mruby/build/host/bin/xkremap: mruby build_config.rb $(CSRCS) $(RBSRCS)
 	cd mruby && MRUBY_CONFIG="$(current_dir)/build_config.rb" make

build_config.rb

@@ -1,6 +1,7 @@
 MRuby::Build.new do |conf|
   toolchain :gcc
 
+  conf.gembox 'default'
   conf.gem File.expand_path(File.dirname(__FILE__))
 
   conf.instance_eval do

mrblib/xkremap/config.rb

@@ -0,0 +1,16 @@
+module Xkremap
+  class Config
+    # @param [String] dsl
+    def self.load(dsl)
+      config = self.new
+      ConfigContext.new(config).instance_eval(dsl)
+      config
+    end
+
+    def initialize
+      @remaps = []
+    end
+
+    attr_reader :remaps
+  end
+end

mrblib/xkremap/config_context.rb

@@ -0,0 +1,8 @@
+module Xkremap
+  class ConfigContext
+    # @param [Xkremap::Config] config
+    def initialize(config)
+      @config = config
+    end
+  end
+end

mrblib/xkremap/event_handler.rb

@@ -0,0 +1,20 @@
+module Xkremap
+  class EventHandler
+    # @param [Xkremap::Config] config
+    # @param [Xkremap::Display] display
+    def initialize(config, display)
+      @config  = config
+      @display = display
+    end
+
+    def handle_key_press(serial, keycode, state)
+      p serial
+    end
+
+    def handle_property_notify(serial)
+    end
+
+    def handle_mapping_notify(serial)
+    end
+  end
+end

tools/xkremap/config.c

@@ -1,9 +1,46 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <mruby.h>
 
+FILE*
+open_file(char *filename)
+{
+  if (!strcmp(filename, "-"))
+    return stdin;
+
+  FILE *file = fopen(filename, "r");
+  if (!file) {
+    fprintf(stderr, "Failed to open: '%s'\n", filename);
+    exit(1);
+  }
+  return file;
+}
+
+char*
+read_file(char *filename)
+{
+  FILE *fp = open_file(filename);
+  fseek(fp, 0L, SEEK_END);
+  long size = ftell(fp);
+  rewind(fp);
+
+  char *ret = malloc(size * sizeof(char));
+  fread(ret, sizeof(char), size, fp);
+  fclose(fp);
+
+  return ret;
+}
+
 mrb_value
 load_config(mrb_state *mrb, char *filename)
 {
-  printf("load: %s\n", filename);
-  return mrb_nil_value();
+  char *dsl = read_file(filename);
+
+  struct RClass *mXkremap = mrb_module_get(mrb, "Xkremap");
+  struct RClass *cConfig  = mrb_class_get_under(mrb, mXkremap, "Config");
+  mrb_value config = mrb_funcall(mrb, mrb_obj_value(cConfig), "load", 1, mrb_str_new_cstr(mrb, dsl));
+
+  free(dsl);
+  return config;
 }