Last change
on this file since 1787 was
981,
checked in by broder, 16 years ago
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Import RouteFS for new versions of ConsoleFS and RemconfFS
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File size:
1.2 KB
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Rev | Line | |
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[981] | 1 | """ |
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| 2 | DictFS allows you to easily create read-only filesystems when the |
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| 3 | file tree is known in advance. |
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| 4 | |
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| 5 | To create your own DictFS descendent, simply override the files |
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| 6 | property, which can be created either using the property |
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| 7 | decorator, or just a simple assignment. |
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| 8 | |
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| 9 | A dictionary represents a directory, with keys corresponding to |
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| 10 | file names and the values corresponding to the file contents. |
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| 11 | """ |
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| 12 | |
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| 13 | import routefs |
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| 14 | from routes import Mapper |
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| 15 | import os |
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| 16 | |
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| 17 | class DictFS(routefs.RouteFS): |
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| 18 | @property |
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| 19 | def files(self): |
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| 20 | """ |
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| 21 | This property should be overridden in your DictFS descendant |
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| 22 | """ |
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| 23 | return dict() |
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| 24 | |
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| 25 | def make_map(self): |
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| 26 | m = Mapper() |
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| 27 | |
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| 28 | m.connect('*path', controller='handler') |
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| 29 | |
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| 30 | return m |
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| 31 | |
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| 32 | def handler(self, path, **kwargs): |
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| 33 | if path != '': |
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| 34 | elements = path.split(os.path.sep) |
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| 35 | else: |
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| 36 | elements = [] |
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| 37 | |
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| 38 | try: |
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| 39 | tree = self.files |
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| 40 | for elt in elements: |
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| 41 | tree = tree[elt] |
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| 42 | except KeyError: |
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| 43 | return |
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| 44 | |
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| 45 | if type(tree) is dict: |
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| 46 | return tree.keys() |
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| 47 | else: |
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| 48 | return tree |
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