32
31
process() for more information.
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35
"""Iterates over self.walk_list, calling process() for each entry in turn. For
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36
directory entries, where process() returns False, subsequent entries in
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walk_list that fall under the directory are skipped.
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print "walking [%s]" % self.__class__.__name__
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for rel_file in self.walk_list:
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44
# if we're skipping, skip entries in subdirectories, or turn off
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src = Walker.File( os.path.join( self.src_dir, rel_file ) )
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dst = Walker.File( os.path.join( self.dst_dir, rel_file ) )
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recurse = self.process( rel_file, src, dst )
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src_file = os.path.join( self.src_dir, rel_file )
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dst_file = os.path.join( self.dst_dir, rel_file )
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src_type = Walker.get_file_type( src_file )
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dst_type = Walker.get_file_type( dst_file )
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recurse = self.process(
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rel_file, src_file, src_type, dst_file, dst_type )
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# Set up skipping, as required. Note that we don't check to see if
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# we're dealing with a directory here. We can't, because we've no
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# way of knowing what to check. It could be src_type or dst_type
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# (if src_dir or dst_dir was used to generate the walk list) or it
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65
# could be neither (if the walk list came from somewhere else). But
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# it shouldn't matter: we add a path seperateor (os.sep) to the end
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# of the filename, so it wuill only match files that are descendents
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# of a directory with the name of this file.
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if not recurse: skip = rel_file + os.sep
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def __init__( self, full_file ):
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if not os.path.exists( self.file ):
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elif os.path.isfile( self.file ):
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elif os.path.isdir( self.file ):
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if os.path.islink( self.file ):
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self.link_type = self.type
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self.link_type = False
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def get_type_name( self ):
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if self.type == 'l': return 'symlink'
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elif self.type == 'f': return 'file'
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elif self.type == 'd': return 'directory'
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elif self.type == '_': return 'missing'
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else: return 'unknown'
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if( self.link_type ): type += '/' + self.link_type
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return 'File( %s (%s) )' % ( self.file, type )
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def generate_walk_list( full_dir, rel_file = '', recurse = True ):
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# it shouldn't matter. We adding an os.pathset to the end of the
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# filename, so it wuill only match files that are descendents of a
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# directory with the name of this file.
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if not recurse: skip = rel_file + os.pathsep
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def get_file_type( full_file ):
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"""Returns the type of a given file, at the time of calling. Types are 'd' for
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directory, 'f' for file, 'l' for symlink, '_' for missing and '?' for
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if not os.path.lexists( full_file ):
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elif os.path.islink( full_file ):
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elif os.path.isfile( full_file ):
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elif os.path.isdir( full_file ):
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def generate_walk_list( full_dir, rel_file = '' ):
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93
"""Returns a list of files and directories in full_dir, specified as relative
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94
files (relative to full_dir), breadth first.
111
97
# ignore some files
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static_ignores = [ '.stdhome', '.stdhomerc' ] + \
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the.repo.vcs.ignored_files
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if rel_file in static_ignores:
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if rel_file in { '.bzr', '.stdhome' }: return list()
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full_file = os.path.join( full_dir, rel_file )
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# directories are returned and recursed in to
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107
elif os.path.isdir( full_file ):
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ret = [ rel_file ] if rel_file != '' else []
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for file in os.listdir( full_file ):
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ret.extend( Walker.generate_walk_list(
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full_dir, os.path.join( rel_file, file ) ) )
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for file in os.listdir( full_file ):
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ret.extend( Walker.generate_walk_list(
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full_dir, os.path.join( rel_file, file ) ) )
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return sorted( ret )
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114
# other kinds are invalid
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raise RuntimeError(
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'unknown/exotic file: %s' % full_file )
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def name_of_type( type ):
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if type == 'd': return 'a directory'
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elif type == 'f': return 'a file'
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elif type == 'l': return 'a symlink'
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elif type == '_': return 'missing'
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else: return 'something exotic'