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comparison mercurial/util.py @ 18735:716cad930691

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util: generalize bytecount to unitcountfn This gives us a function we can reuse to count units of other kinds.
author Bryan O'Sullivan <bryano@fb.com>
date Thu, 28 Feb 2013 12:51:18 -0800
parents 423eee0b0b14
children af9ddea2cb99
comparison
equal deleted inserted replaced
18734:b72697653306 18735:716cad930691
1266 return text 1266 return text
1267 return utext.encode(encoding.encoding) 1267 return utext.encode(encoding.encoding)
1268 except (UnicodeDecodeError, UnicodeEncodeError): 1268 except (UnicodeDecodeError, UnicodeEncodeError):
1269 return _ellipsis(text, maxlength)[0] 1269 return _ellipsis(text, maxlength)[0]
1270 1270
1271 _byteunits = ( 1271 def unitcountfn(*unittable):
1272 '''return a function that renders a readable count of some quantity'''
1273
1274 def go(count):
1275 for multiplier, divisor, format in unittable:
1276 if count >= divisor * multiplier:
1277 return format % (count / float(divisor))
1278 return unittable[-1][2] % count
1279
1280 return go
1281
1282 bytecount = unitcountfn(
1272 (100, 1 << 30, _('%.0f GB')), 1283 (100, 1 << 30, _('%.0f GB')),
1273 (10, 1 << 30, _('%.1f GB')), 1284 (10, 1 << 30, _('%.1f GB')),
1274 (1, 1 << 30, _('%.2f GB')), 1285 (1, 1 << 30, _('%.2f GB')),
1275 (100, 1 << 20, _('%.0f MB')), 1286 (100, 1 << 20, _('%.0f MB')),
1276 (10, 1 << 20, _('%.1f MB')), 1287 (10, 1 << 20, _('%.1f MB')),
1278 (100, 1 << 10, _('%.0f KB')), 1289 (100, 1 << 10, _('%.0f KB')),
1279 (10, 1 << 10, _('%.1f KB')), 1290 (10, 1 << 10, _('%.1f KB')),
1280 (1, 1 << 10, _('%.2f KB')), 1291 (1, 1 << 10, _('%.2f KB')),
1281 (1, 1, _('%.0f bytes')), 1292 (1, 1, _('%.0f bytes')),
1282 ) 1293 )
1283
1284 def bytecount(nbytes):
1285 '''return byte count formatted as readable string, with units'''
1286
1287 for multiplier, divisor, format in _byteunits:
1288 if nbytes >= divisor * multiplier:
1289 return format % (nbytes / float(divisor))
1290 return _byteunits[-1][2] % nbytes
1291 1294
1292 def uirepr(s): 1295 def uirepr(s):
1293 # Avoid double backslash in Windows path repr() 1296 # Avoid double backslash in Windows path repr()
1294 return repr(s).replace('\\\\', '\\') 1297 return repr(s).replace('\\\\', '\\')
1295 1298