[olympic] Improve error handling in file-to-cpp

util/scripts/file-to-cpp.py

@@ -15,6 +15,9 @@ import pathlib
 import sys
 
 
+tool_name = 'file-to-cpp'
+
+
 def write_txt_file(path: str, txt: str):
     with open(path, "w") as f:
         f.write(txt)
@@ -22,6 +25,7 @@ def write_txt_file(path: str, txt: str):
 
 
 def file_to_hex(path: str, line_prefix: str) -> tuple[str, int]:
+    try:
         with open(path, 'rb') as f:
             out = line_prefix
             data = f.read()
@@ -34,6 +38,9 @@ def file_to_hex(path: str, line_prefix: str) -> tuple[str, int]:
                     out += ' '
                 i += 1
             return out[:-1], len(data)
+    except FileNotFoundError:
+        print(f'{tool_name}: included file not found: {path}', file=sys.stderr)
+        sys.exit(1)
 
 
 def file_to_cpp(path: str, cpp_name: str) -> tuple[str, str]:
@@ -76,11 +83,11 @@ def proc_rsrc_file(rsrc_path: str):# Open and read the JSON file
         all_files_func += f'\nox::Vector<ox::SpanView<uint8_t>> {all_files}() noexcept {{\n\treturn {{\n'
     for f in data['files']:
         if 'path' not in f:
-            print('src file path missing', file=sys.stderr)
+            print(f'{tool_name}: src file path missing', file=sys.stderr)
             sys.exit(1)
         path = f['path']
         if 'cpp_name' not in f:
-            print('var name missing', file=sys.stderr)
+            print(f'{tool_name}: var name missing', file=sys.stderr)
             sys.exit(1)
         cpp_name = f['cpp_name']
         c, h = file_to_cpp(os.path.join(base_path, path), cpp_name)