nodemcu-uploader.py 10 KB

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  1. #!/usr/bin/env python
  2. # Copyright (C) 2015 Peter Magnusson
  3. # For NodeMCU version 0.9.4 build 2014-12-30 and newer.
  4. import os
  5. import serial
  6. import sys
  7. import argparse
  8. import time
  9. import logging
  10. log = logging.getLogger(__name__)
  11. def minify(script):
  12. return ' '.join([line.strip() for line in script.split('\n')])
  13. save_lua = \
  14. r"""
  15. function recv_block(d)
  16. if string.byte(d, 1) == 1 then
  17. size = string.byte(d, 2)
  18. if size > 0 then
  19. file.write(string.sub(d, 3, 3+size-1))
  20. uart.write(0,'\006')
  21. else
  22. uart.write(0,'\006')
  23. file.close()
  24. uart.on('data')
  25. uart.setup(0,9600,8,0,1,1)
  26. end
  27. else
  28. uart.write(0, '\021' .. d)
  29. uart.setup(0,9600,8,0,1,1)
  30. uart.on('data')
  31. end
  32. end
  33. function recv_name(d)
  34. d = string.gsub(d, '\000', '')
  35. file.remove(d)
  36. file.open(d, 'w')
  37. uart.on('data', 130, recv_block, 0)
  38. uart.write(0, '\006')
  39. end
  40. function recv()
  41. uart.setup(0,9600,8,0,1,0)
  42. uart.on('data', '\000', recv_name, 0)
  43. uart.write(0, 'C')
  44. end
  45. """
  46. #save_lua = minify(save_lua)
  47. #save_lua = ' '.join([line.strip().replace(', ', ',') for line in save_lua.split('\n')])
  48. CHUNK_END = '\v'
  49. CHUNK_REPLY = '\v'
  50. class Uploader:
  51. BAUD = 9600
  52. PORT = '/dev/ttyUSB0'
  53. TIMEOUT = 1
  54. def __init__(self, port = 0, baud = BAUD):
  55. self._port = serial.Serial(port, Uploader.BAUD, timeout=Uploader.TIMEOUT)
  56. # Keeps things working, if following conections are made:
  57. ## RTS = CH_PD (i.e reset)
  58. ## DTR = GPIO0
  59. self._port.setRTS(False)
  60. self._port.setDTR(False)
  61. time.sleep(0.5)
  62. self.dump()
  63. if baud != Uploader.BAUD:
  64. log.info('Changing communication to %s baud', baud)
  65. self._port.write('uart.setup(0,%s,8,0,1,1)\r\n' % baud)
  66. log.info(self.dump())
  67. self._port.close()
  68. self._port = serial.Serial(port, baud, timeout=Uploader.TIMEOUT)
  69. self.line_number = 0
  70. def close(self):
  71. self._port.write('uart.setup(0,%s,8,0,1,1)\r\n' % Uploader.BAUD)
  72. self._port.close()
  73. def dump(self, timeout=TIMEOUT):
  74. t = self._port.timeout
  75. if self._port.timeout != timeout:
  76. self._port.timeout = timeout
  77. n = self._port.read()
  78. data = ''
  79. while n != '':
  80. data += n
  81. n = self._port.read()
  82. self._port.timeout = t
  83. return data
  84. def prepare(self):
  85. log.info('Preparing esp for transfer.')
  86. self.write_lines(save_lua.replace('9600', '%d' % self._port.baudrate))
  87. self._port.write('\r\n')
  88. d = self.dump(0.1)
  89. if 'unexpected' in d or len(d) > len(save_lua)+10:
  90. log.error('error in save_lua "%s"' % d)
  91. return
  92. def read_file(self, filename, destination = ''):
  93. if not destination:
  94. destination = filename
  95. self.dump()
  96. self._port.write(r"file.open('" + filename + r"') print(file.seek('end', 0)) file.seek('set', 0) uart.write(0, file.read()) file.close()" + '\n')
  97. cmd, size, data = self.dump().split('\n', 2)
  98. data = data[0:int(size)]
  99. with open(destination, 'w') as f:
  100. f.write(data)
  101. def write_file(self, path, destination = ''):
  102. filename = os.path.basename(path)
  103. if not destination:
  104. destination = filename
  105. log.info('Transfering %s as %s' %(filename, destination))
  106. self.dump()
  107. self._port.write(r"recv()" + '\n')
  108. count = 0
  109. while not 'C' in self.dump(0.2):
  110. time.sleep(1)
  111. count += 1
  112. if count > 5:
  113. log.error('Error waiting for esp "%s"' % self.dump())
  114. return
  115. self.dump(0.5)
  116. log.debug('sending destination filename "%s"', destination)
  117. self._port.write(destination + '\x00')
  118. if not self.got_ack():
  119. log.error('did not ack destination filename: "%s"' % self.dump())
  120. return
  121. f = open( path, 'rt' ); content = f.read(); f.close()
  122. log.debug('sending %d bytes in %s' % (len(content), filename))
  123. pos = 0
  124. chunk_size = 128
  125. error = False
  126. while pos < len(content):
  127. rest = len(content) - pos
  128. if rest > chunk_size:
  129. rest = chunk_size
  130. data = content[pos:pos+rest]
  131. if not self.write_chunk(data):
  132. error = True
  133. d = self.dump()
  134. log.error('Bad chunk response "%s" %s' % (d, ':'.join(x.encode('hex') for x in d)))
  135. break
  136. pos += chunk_size
  137. log.debug('sending zero block')
  138. if not error:
  139. #zero size block
  140. self.write_chunk('')
  141. def got_ack(self):
  142. log.debug('waiting for ack')
  143. r = self._port.read(1)
  144. return r == '\x06' #ACK
  145. def write_lines(self, data):
  146. lines = data.replace('\r', '').split('\n')
  147. for line in lines:
  148. self._port.write(line + '\r\n')
  149. d = self.dump(0.1)
  150. log.debug(d)
  151. return
  152. def write_chunk(self, chunk):
  153. log.debug('writing %d bytes chunk' % len(chunk))
  154. data = '\x01' + chr(len(chunk)) + chunk
  155. if len(chunk) < 128:
  156. padding = 128 - len(chunk)
  157. log.debug('pad with %d characters' % padding)
  158. data = data + (' ' * padding)
  159. log.debug("packet size %d" % len(data))
  160. self._port.write(data)
  161. return self.got_ack()
  162. def file_list(self):
  163. log.info('Listing files')
  164. self._port.write('for key,value in pairs(file.list()) do print(key,value) end' + '\r\n')
  165. r = self.dump()
  166. log.info(r)
  167. return r
  168. def file_format(self):
  169. log.info('Format')
  170. self._port.write('file.format()' + '\r\n')
  171. r = self.dump()
  172. log.info(r)
  173. return r
  174. def node_heap(self):
  175. log.info('Heap')
  176. self._port.write('print(node.heap())\r\n')
  177. r = self.dump()
  178. log.info(r)
  179. return r
  180. def node_restart(self):
  181. log.info('Restart')
  182. self._port.write('node.restart()' +'\r\n')
  183. r = self.dump()
  184. log.info(r)
  185. return r
  186. def file_compile(self, path):
  187. log.info('Compile '+path)
  188. cmd = 'node.compile("%s")' % path
  189. self._port.write(cmd + '\r\n')
  190. r = self.dump()
  191. log.info(r)
  192. return r
  193. def file_remove(self, path):
  194. log.info('Remove '+path)
  195. cmd = 'file.remove("%s")' % path
  196. self._port.write(cmd + '\r\n')
  197. r = self.dump()
  198. log.info(r)
  199. return r
  200. def arg_auto_int(x):
  201. return int(x, 0)
  202. if __name__ == '__main__':
  203. parser = argparse.ArgumentParser(description = 'NodeMCU Lua file uploader', prog = 'nodemcu-uploader')
  204. parser.add_argument(
  205. '--verbose', '-v',
  206. help = 'verbose output',
  207. action = 'store_true',
  208. default = False)
  209. parser.add_argument(
  210. '--port', '-p',
  211. help = 'Serial port device',
  212. default = Uploader.PORT)
  213. parser.add_argument(
  214. '--baud', '-b',
  215. help = 'Serial port baudrate',
  216. type = arg_auto_int,
  217. default = Uploader.BAUD)
  218. subparsers = parser.add_subparsers(
  219. dest='operation',
  220. help = 'Run nodemcu-uploader {command} -h for additional help')
  221. upload_parser = subparsers.add_parser(
  222. 'upload',
  223. help = 'Path to one or more files to be uploaded. Destination name will be the same as the file name.')
  224. upload_parser.add_argument(
  225. '--filename', '-f',
  226. help = 'File to upload. You can specify this option multiple times.',
  227. action='append')
  228. upload_parser.add_argument(
  229. '--destination', '-d',
  230. help = 'Name to be used when saving in NodeMCU. You should specify one per file.',
  231. action='append')
  232. upload_parser.add_argument(
  233. '--compile', '-c',
  234. help = 'If file should be uploaded as compiled',
  235. action='store_true',
  236. default=False
  237. )
  238. upload_parser.add_argument(
  239. '--restart', '-r',
  240. help = 'If esp should be restarted',
  241. action='store_true',
  242. default=False
  243. )
  244. download_parser = subparsers.add_parser(
  245. 'download',
  246. help = 'Path to one or more files to be downloaded. Destination name will be the same as the file name.')
  247. download_parser.add_argument(
  248. '--filename', '-f',
  249. help = 'File to download. You can specify this option multiple times.',
  250. action='append')
  251. download_parser.add_argument(
  252. '--destination', '-d',
  253. help = 'Name to be used when saving in NodeMCU. You should specify one per file.',
  254. action='append')
  255. file_parser = subparsers.add_parser(
  256. 'file',
  257. help = 'File functions')
  258. file_parser.add_argument('cmd', choices=('list', 'format'))
  259. args = parser.parse_args()
  260. formatter = logging.Formatter('%(message)s')
  261. logging.basicConfig(level=logging.INFO, format='%(message)s')
  262. uploader = Uploader(args.port, args.baud)
  263. if args.verbose:
  264. log.setLevel(logging.DEBUG)
  265. if args.operation == 'upload':
  266. if not args.destination:
  267. uploader.prepare()
  268. for f in args.filename:
  269. uploader.write_file(f)
  270. elif len(args.destination) == len(args.filename):
  271. uploader.prepare()
  272. for f, d in zip(args.filename, args.destination):
  273. uploader.write_file(f, d)
  274. if args.compile:
  275. uploader.file_compile(d)
  276. uploader.file_remove(d)
  277. if args.restart:
  278. uploader.node_restart()
  279. else:
  280. raise Exception('You must specify a destination filename for each file you want to upload.')
  281. print 'All done!'
  282. if args.operation == 'download':
  283. if not args.destination:
  284. for f in args.filename:
  285. uploader.read_file(f)
  286. elif len(args.destination) == len(args.filename):
  287. for f, d in zip(args.filename, args.destination):
  288. uploader.read_file(f, d)
  289. else:
  290. raise Exception('You must specify a destination filename for each file you want to download.')
  291. print 'All done!'
  292. elif args.operation == 'file':
  293. if args.cmd == 'list':
  294. uploader.file_list()
  295. elif args.cmd == 'format':
  296. uploader.file_format()
  297. uploader.close()