Mercurial > hg
annotate mercurial/py3kcompat.py @ 28447:4eb5496c2bd4
registrar: add filesetpredicate to mark a function as fileset predicate
filesetpredicate is used to replace fileset.predicate in subsequent
patch.
This patch also adds loadpredicate() to fileset, because this
combination helps to figure out how the name of "status caller" (or
"existing caller") predicate is put into _statuscallers (or
_existingcallers).
Listing up loadpredicate() in dispatch.extraloaders causes implicit
loading fileset predicate functions at loading (3rd party) extension.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Fri, 11 Mar 2016 04:14:54 +0900 |
parents | 5bfd01a3c2a9 |
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rev | line source |
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1 # py3kcompat.py - compatibility definitions for running hg in py3k |
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2 # |
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3 # Copyright 2010 Renato Cunha <renatoc@gmail.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import builtins |
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11 import numbers |
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12 |
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13 Number = numbers.Number |
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14 |
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15 def bytesformatter(format, args): |
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16 '''Custom implementation of a formatter for bytestrings. |
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17 |
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18 This function currently relies on the string formatter to do the |
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19 formatting and always returns bytes objects. |
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20 |
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21 >>> bytesformatter(20, 10) |
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22 0 |
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23 >>> bytesformatter('unicode %s, %s!', ('string', 'foo')) |
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24 b'unicode string, foo!' |
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25 >>> bytesformatter(b'test %s', 'me') |
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26 b'test me' |
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27 >>> bytesformatter('test %s', 'me') |
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28 b'test me' |
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29 >>> bytesformatter(b'test %s', b'me') |
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30 b'test me' |
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31 >>> bytesformatter('test %s', b'me') |
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32 b'test me' |
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33 >>> bytesformatter('test %d: %s', (1, b'result')) |
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34 b'test 1: result' |
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35 ''' |
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36 # The current implementation just converts from bytes to unicode, do |
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37 # what's needed and then convert the results back to bytes. |
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38 # Another alternative is to use the Python C API implementation. |
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39 if isinstance(format, Number): |
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40 # If the fixer erroneously passes a number remainder operation to |
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41 # bytesformatter, we just return the correct operation |
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42 return format % args |
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43 if isinstance(format, bytes): |
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44 format = format.decode('utf-8', 'surrogateescape') |
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45 if isinstance(args, bytes): |
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46 args = args.decode('utf-8', 'surrogateescape') |
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47 if isinstance(args, tuple): |
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48 newargs = [] |
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49 for arg in args: |
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50 if isinstance(arg, bytes): |
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51 arg = arg.decode('utf-8', 'surrogateescape') |
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52 newargs.append(arg) |
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53 args = tuple(newargs) |
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54 ret = format % args |
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55 return ret.encode('utf-8', 'surrogateescape') |
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56 builtins.bytesformatter = bytesformatter |
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57 |
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58 origord = builtins.ord |
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59 def fakeord(char): |
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60 if isinstance(char, int): |
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61 return char |
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62 return origord(char) |
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63 builtins.ord = fakeord |
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64 |
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65 if __name__ == '__main__': |
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66 import doctest |
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67 doctest.testmod() |
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68 |