update to ensure path building is always os-dependent and to ensure all paths for binaries and such look within the build folder

Author: finger563

programmer.py

@@ -28,7 +28,7 @@ def main():
     # load flasher_args.json. flasher_args.json is a json file that contains the
     # arguments to be passed to esptool this file is generated by the build
     # script
-    flasher_args_file = open(resource_path('build/flasher_args.json'), 'r')
+    flasher_args_file = open(resource_path(os.path.join('build', 'flasher_args.json')), 'r')
     flasher_args = json.loads(flasher_args_file.read())
     print(f'Loaded flasher args: {flasher_args}')
 
@@ -50,8 +50,9 @@ def main():
 
     for offset, filepath in flasher_args['flash_files'].items():
         command.append(offset)
-        # convert the filename to use resource path
-        command.append(resource_path(filepath))
+        # prepend the filepath with build/ and convert it using resource_path
+        actual_path = resource_path(os.path.join('build', filepath))
+        command.append(actual_path)
 
     # if the --no-fs flag is set, then we should NOT look for -flash_args files
     if args.no_fs:
@@ -72,7 +73,7 @@ def main():
             # if the filename contains '-flash_args', then we should process it
             if '-flash_args' in filename:
                 print(f'Found {filename}...')
-                flash_args_file = open(resource_path('build/' + filename), 'r').read()
+                flash_args_file = open(resource_path(os.path.join('build', filename)), 'r').read()
                 # split the file by newline
                 for line in flash_args_file.splitlines():
                     print(f'Processing line: {line}')
@@ -81,7 +82,7 @@ def main():
                         offset, binary = line.split(' ')
                         print(f'Found offset: {offset} and binary: {binary}')
                         command.append(offset)
-                        command.append(resource_path(binary))
+                        command.append(resource_path(os.path.join('build', binary)))
                         print(f'Added {offset} and {resource_path(binary)} to command')
 
     # if the port argument is provided, add it to the command