Last change
on this file since 2438 was
2270,
checked in by iannucci, 16 years ago
|
LVM metadata reader script in lvm-backup-reader
|
-
Property svn:executable set to
*
|
File size:
1.4 KB
|
Rev | Line | |
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[2270] | 1 | import re |
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| 2 | |
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| 3 | def complete(value): |
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| 4 | if value.startswith('[') and not value.endswith(']'): |
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| 5 | return False |
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| 6 | return True |
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| 7 | |
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| 8 | def interpret(value): |
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| 9 | return eval(value) # good enough for now |
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| 10 | |
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| 11 | class Metadata: |
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| 12 | def __init__(self, fn): |
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| 13 | self.text = open(fn, 'r').read() |
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| 14 | lines = filter(lambda l: not l.startswith("#") and not l.strip()=='', self.text.splitlines()) |
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| 15 | d = {} |
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| 16 | parent = [] |
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| 17 | node = d |
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| 18 | mode = 0 |
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| 19 | for l in lines: |
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| 20 | if mode == 0: |
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| 21 | if l.strip() == '}': |
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| 22 | node = parent[-1] |
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| 23 | del parent[-1] |
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| 24 | elif l.strip().endswith('{'): |
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| 25 | name = l.strip()[:-1].strip() |
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| 26 | parent.append(node) |
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| 27 | child = {} |
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| 28 | node[name] = child |
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| 29 | node = child |
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| 30 | else: |
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| 31 | key, value = re.search(r'\t*(\S*) = (.*?)(\s*# .*)?$', l).groups()[0:2] |
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| 32 | if not complete(value): |
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| 33 | mode = 1 |
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| 34 | else: |
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| 35 | node[key] = interpret(value) |
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| 36 | elif mode == 1: |
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| 37 | value += re.search(r'\t*(.*?)( *# .*)?$', l).group(0).strip() |
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| 38 | if complete(value): |
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| 39 | node[key] = interpret(value) |
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| 40 | mode = 0 |
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| 41 | self.d = d |
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| 42 | |
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| 43 | import pprint |
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| 44 | pprint.pprint(Metadata('xenvg-backup').d) |
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