Mercurial > hg
view contrib/hgfixes/fix_bytes.py @ 17156:7034365089bf
localrepo: add "vfs" fields to "localrepository" for migration from "opener"
As a part of migration to vfs, this patch adds "vfs" fields to
"localrepository" class.
This allows new codes to access current "opener" objects related to
repositories via "vfs" fields, so patches referring to "vfs" will
replace referring to "opener" in time.
This patch also adds initializations for "vfs" fields to
"statichttprepository" class derived from it, because its constructor
doesn't invoke the constructor of "localrepository", so "vfs" fields
should be initialized explicitly as same as "opener" fields: it has no
working directory, so "wvfs" field is not added.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Fri, 06 Jul 2012 18:45:26 +0900 |
parents | 37a70a784397 |
children | e51d4aedace9 |
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"""Fixer that changes plain strings to bytes strings.""" import re from lib2to3 import fixer_base from lib2to3.pgen2 import token from lib2to3.fixer_util import Name from lib2to3.pygram import python_symbols as syms _re = re.compile(r'[rR]?[\'\"]') # XXX: Implementing a blacklist in 2to3 turned out to be more troublesome than # blacklisting some modules inside the fixers. So, this is what I came with. blacklist = ['mercurial/demandimport.py', 'mercurial/py3kcompat.py', # valid python 3 already 'mercurial/i18n.py', ] def isdocstring(node): def isclassorfunction(ancestor): symbols = (syms.funcdef, syms.classdef) # if the current node is a child of a function definition, a class # definition or a file, then it is a docstring if ancestor.type == syms.simple_stmt: try: while True: if ancestor.type in symbols: return True ancestor = ancestor.parent except AttributeError: return False return False def ismodule(ancestor): # Our child is a docstring if we are a simple statement, and our # ancestor is file_input. In other words, our child is a lone string in # the source file. try: if (ancestor.type == syms.simple_stmt and ancestor.parent.type == syms.file_input): return True except AttributeError: return False def isdocassignment(ancestor): # Assigning to __doc__, definitely a string try: while True: if (ancestor.type == syms.expr_stmt and Name('__doc__') in ancestor.children): return True ancestor = ancestor.parent except AttributeError: return False if ismodule(node.parent) or \ isdocassignment(node.parent) or \ isclassorfunction(node.parent): return True return False def shouldtransform(node): specialnames = ['__main__'] if node.value in specialnames: return False ggparent = node.parent.parent.parent sggparent = str(ggparent) if 'getattr' in sggparent or \ 'hasattr' in sggparent or \ 'setattr' in sggparent or \ 'encode' in sggparent or \ 'decode' in sggparent: return False return True class FixBytes(fixer_base.BaseFix): PATTERN = 'STRING' def transform(self, node, results): if self.filename in blacklist: return if node.type == token.STRING: if _re.match(node.value): if isdocstring(node): return if not shouldtransform(node): return new = node.clone() new.value = 'b' + new.value return new