Add basic CLI

Makefile

@@ -75,7 +75,7 @@ deps_macos:
 	brew install clang-format
 
 run: default
-	$(BUILD_DIR)/$(TARGET)
+	@$(BUILD_DIR)/$(TARGET) $(program);
 
 test: compile_rust $(TEST_TARGET)
 	$(BUILD_DIR)/$(TEST_TARGET)

src/cairo_run.c

@@ -0,0 +1,10 @@
+#include "cairo_run.h"
+#include "parser.h"
+#include <stdlib.h>
+
+ResultCairoRun cairo_run(char *program_file_name) {
+	Program *program = parse_json_filename(program_file_name);
+	free(program);
+	ResultCairoRun ok = {.is_error = false, .error_message = ""};
+	return ok;
+}

src/cairo_run.h

@@ -0,0 +1,7 @@
+#include <stdbool.h>
+typedef struct ResultCairoRun {
+	bool is_error;
+	char *error_message;
+} ResultCairoRun;
+
+ResultCairoRun cairo_run(char *program_file_name);

src/main.c

@@ -1,10 +1,17 @@
-#include "decoder.h"
-#include "utils.h"
-#include <limits.h>
+#include "cairo_run.h"
 #include <stdio.h>
 
-int main(__attribute__((unused)) int argc, __attribute__((unused)) char **argv) {
-	printf("Hello World!\n");
-
+int main(int argc, char **argv) {
+	if (argc != 2) {
+		printf("Error: expected the name of a program json file\n");
+		return -1;
+	}
+	char * program_file_name = argv[1];
+	printf("Running program: %s\n", program_file_name);
+	ResultCairoRun result = cairo_run(program_file_name);
+	if (result.is_error) {
+		printf("Error: %s\n", result.error_message);
+	}
+	printf("Run succesful\n");
 	return 0;
 }