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comparison mercurial/util.py @ 27778:4d10600c3f08

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util: simplify file I/O functions using context managers
author Bryan O'Sullivan <bryano@fb.com>
date Tue, 12 Jan 2016 14:49:35 -0800
parents 5ef99738a562
children ba427b51f1d8
comparison
equal deleted inserted replaced
27777:47ac135113ec 27778:4d10600c3f08
1443 raise 1443 raise
1444 if mode is not None: 1444 if mode is not None:
1445 os.chmod(name, mode) 1445 os.chmod(name, mode)
1446 1446
1447 def readfile(path): 1447 def readfile(path):
1448 fp = open(path, 'rb') 1448 with open(path, 'rb') as fp:
1449 try:
1450 return fp.read() 1449 return fp.read()
1451 finally:
1452 fp.close()
1453 1450
1454 def writefile(path, text): 1451 def writefile(path, text):
1455 fp = open(path, 'wb') 1452 with open(path, 'wb') as fp:
1456 try:
1457 fp.write(text) 1453 fp.write(text)
1458 finally:
1459 fp.close()
1460 1454
1461 def appendfile(path, text): 1455 def appendfile(path, text):
1462 fp = open(path, 'ab') 1456 with open(path, 'ab') as fp:
1463 try:
1464 fp.write(text) 1457 fp.write(text)
1465 finally:
1466 fp.close()
1467 1458
1468 class chunkbuffer(object): 1459 class chunkbuffer(object):
1469 """Allow arbitrary sized chunks of data to be efficiently read from an 1460 """Allow arbitrary sized chunks of data to be efficiently read from an
1470 iterator over chunks of arbitrary size.""" 1461 iterator over chunks of arbitrary size."""
1471 1462