organize-folders.py
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	#!/usr/bin/env python3

	import os
	import sys
	import yaml


	# -------------------------------------------------------------
	# Configuration file
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	def get_configuration_file_path_candidates():
	candidates = [
	"/usr/local/etc/organize/folders.yml",
	"/etc/organize/folders.yml",
	]

	try:
	candidates.append(os.environ["HOME"] + "/.config/organize/folders.yml")
	except KeyError:
	pass

	return candidates


	def get_configuration_file_path():
	for file_path in get_configuration_file_path_candidates():
	if os.path.exists(file_path):
	return file_path

	raise Exception("Can't find configuration file.")


	# -------------------------------------------------------------
	# Folders organizer
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	class Organizer(object):

	def __init__(self):
	self.configuration_file_path = get_configuration_file_path()
	self.folders = self.read_folders()

	def read_folders(self):
	folders = yaml.safe_load(open(self.configuration_file_path))

	if folders is None:
	return {}

	return folders

	def get(self, folderType):
	return self.folders[folderType]

	def set(self, folderType, folderPath):
	self.folders[folderType] = folderPath

	def save(self):
	fd = open(self.configuration_file_path, "w")
	print(yaml.dump(self.folders), file=fd)
	fd.close()


	# -------------------------------------------------------------
	# Folders organizer command
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	class OrganizerCommand(object):

	def __init__(self, organizer):
	self.organizer = organizer

	def get(self, folderType):
	try:
	folder = self.organizer.get(folderType)
	except KeyError:
	return False

	print(folder)

	return True

	def set(self, folderType, folderPath):
	self.organizer.set(folderType, folderPath)
	self.organizer.save()

	return True


	# -------------------------------------------------------------
	# Helpers
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	def s(count):
	if count > 1:
	return "s"

	return ""


	# -------------------------------------------------------------
	# Run task
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	def run(command, args):
	organizer = Organizer()
	organiserCommand = OrganizerCommand(organizer)

	# Calls organizer.{command}({args})

	try:
	method = getattr(organiserCommand, command)
	except AttributeError:
	print("Command not found:", command, file=sys.stderr)
	exit(2)

	expectedArgsCount = method.__code__.co_argcount - 1
	if len(args) != expectedArgsCount:
	print("Command", command, "expects", expectedArgsCount,
	"argument." + s(expectedArgsCount))
	exit(4)

	result = method(*args)

	exitCode = 0 if result else 1
	sys.exit(exitCode)


	if __name__ == "__main__":
	argc = len(sys.argv)

	if argc < 2:
	print("Usage: organize-folders <command> [arguments]", file=sys.stderr)
	exit(8)

	run(sys.argv[1], sys.argv[2:])

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