Mercurial > hg > contenttransformer

comparison contenttransformer/app.py @ 4:5258325a496a

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move transformers getting method to a standalone function
author k0s <k0scist@gmail.com>
date Sun, 17 Jan 2010 19:47:32 -0500
parents aa491070ccf3
children 051d4d39b4b9
comparison
equal deleted inserted replaced
3:1a267297f779 4:5258325a496a
3 from fnmatch import fnmatch 3 from fnmatch import fnmatch
4 from paste.fileapp import FileApp 4 from paste.fileapp import FileApp
5 from pkg_resources import iter_entry_points 5 from pkg_resources import iter_entry_points
6 6
7 class FileTypeTransformer(object): 7 class FileTypeTransformer(object):
8 transformers = {}
9 8
10 def __init__(self, *types, **kwargs): 9 def __init__(self, *types, **kwargs):
11 """types is a list of two-tuples: glob pattern (string), transformer name (string, name of entry point)""" 10 """types is a list of two-tuples: glob pattern (string), transformer name (string, name of entry point)"""
12 self.types = types 11 self.types = types
13 12
14 # intended to be arguments to the xformers 13 # intended to be arguments to the xformers
15 # XXX unused 14 # XXX unused
16 self.kwargs = kwargs 15 self.kwargs = kwargs
17 16
18 for entry_point in iter_entry_points('content_transformers'): 17 self.transformers = transformers()
19 try:
20 self.transformers[entry_point.name] = entry_point.load()
21 except:
22 raise # XXX
23 for pattern, transformer_name in self.types: 18 for pattern, transformer_name in self.types:
24 assert transformer_name in self.transformers 19 assert transformer_name in self.transformers
25 20
26 def __call__(self, path): 21 def __call__(self, path):
27 """this should return something that is callable with (environ, start_response) to return a response; the transformer thing""" 22 """this should return something that is callable with (environ, start_response) to return a response; the transformer thing"""
28 filename = os.path.basename(path) 23 filename = os.path.basename(path)
29 for pattern, transformer_name in self.types: 24 for pattern, transformer_name in self.types:
30 if fnmatch(filename, pattern): 25 if fnmatch(filename, pattern):
31 content = file(path).read() 26 content = file(path).read()
32 return self.transformers[transformer_name](content) 27 return self.transformers[transformer_name](content)
33 return FileApp(path) 28 return FileApp(path)
29
30
31 def transformers():
32 transformers = {} # XXX could cache
33 for entry_point in iter_entry_points('content_transformers'):
34 try:
35 transformers[entry_point.name] = entry_point.load()
36 except:
37 raise # XXX
38 return transformers
39