Mercurial > hg > CommitWatcher

annotate commitwatcher/store.py @ 42:cd590e1722d6

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author Jeff Hammel <jhammel@mozilla.com>
date Tue, 05 Nov 2013 03:03:06 -0800
parents b04538e7f9f3
children ef90a853afd1
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1 """
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2 storage classes for commits and related data
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3 """
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5 from abc import abstractmethod
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7 __all__ = ['CommitStore', 'MemoryStore']
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9 class CommitStore(object):
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10 """
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11 ABC for commit storage
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12 """
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14 def __init__(self, verbose=True, events=None):
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15 self.verbose = verbose
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16 self.events = events
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18 @abstractmethod
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19 def __contains__(self, revision):
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20 """if a particular revision is already added"""
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22 @abstractmethod
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23 def store(self, commit):
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24 """store a commit"""
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26 def add(self, commit):
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27 """adds a commit to the store"""
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28 if commit.revision not in self:
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29 return
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30 self.store(commit)
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32 def ancestry(self, path):
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33 sep = '/' # unix/url-style separators
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34 path = path.split('/')
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35 paths = []
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36 while path:
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37 paths.append(sep.join(path))
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38 path.pop()
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39 return paths
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40
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41 def paths(self, *commits):
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42 """
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43 return paths touched by commits
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44 """
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45
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46 paths = set()
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47 for commit in commits:
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48 for f in commit.files:
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49 paths.update(self.ancestry(f))
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50 return paths
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53 class MemoryStore(CommitStore):
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54 """store in volatile memory"""
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55 # volatile!
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57 def __init__(self, *args, **kwargs):
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58 CommitStore.__init__(self, *args, **kwargs)
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59 self.path_to_commit = {}
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60 self._commits = []
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62 def store(self, commit):
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63 paths = self.paths(commit)
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64 for path in paths:
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65 self.path_to_commit.set_default(path, []).append(commit)
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66 raise NotImplementedError
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