Custom module paths

[WillTrojak]

Currently, it seems that the location of custom module is both hard coded and implied by the launch location.

For example, a custom module has to be in a directory called custom_modules within the current working directory.

For example, here:

terratorch/terratorch/cli_tools.py

Line 59 in 9912b97

CUSTOM_MODULES_DIR_NAME = "custom_modules"

terratorch/terratorch/cli_tools.py

Lines 390 to 397 in 9912b97

	# import any custom modules
	current_working_dir = os.getcwd()
	custom_modules_path = os.path.join(current_working_dir, CUSTOM_MODULES_DIR_NAME)
	if os.path.exists(custom_modules_path) and os.path.isdir(custom_modules_path):
	# Add 'custom_modules' folder to sys.path
	sys.path.append(os.getcwd())
	logging.info(f"Found {CUSTOM_MODULES_DIR_NAME}")
	importlib.import_module(CUSTOM_MODULES_DIR_NAME)

terratorch/terratorch/registry/custom_registry.py

Line 6 in 9912b97

CUSTOM_MODULES_DIR_NAME = "custom_modules"

I would suggest replacing the hard-cored paths, checking for the path in the following order of precedence:

• Command-line flag --module-path
• Environment variable CUSTOM_MODULE_PATH
• Default to the currently hard-coded path if neither is provided.

[WillTrojak]

@romeokienzler @Joao-L-S-Almeida

[romeokienzler]

thanks @WillTrojak will put it to the sprint list