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81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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"""Implements a container for parsed snippets."""
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import hashlib
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import os
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def _hash_file(path):
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"""Returns a hashdigest of 'path'"""
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if not os.path.isfile(path):
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return False
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return hashlib.sha1(open(path, "rb").read()).hexdigest()
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# TODO(sirver): This class should not hash any files nor keep track of extends.
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class SnippetDictionary(object):
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"""See module docstring."""
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def __init__(self):
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self._added = []
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self._extends = []
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self._files = {}
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self._snippets = []
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def add_snippet(self, snippet, filename):
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"""Add 'snippet' to this dictionary. If 'filename' is given, also watch
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the original file for changes."""
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if filename:
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self._snippets.append(snippet)
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if filename not in self.files:
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self.addfile(filename)
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else:
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self._added.append(snippet)
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def get_matching_snippets(self, trigger, potentially):
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"""Returns all snippets matching the given trigger. If 'potentially' is
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true, returns all that could_match()."""
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all_snippets = self._added + self._snippets
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if not potentially:
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return [s for s in all_snippets if s.matches(trigger)]
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else:
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return [s for s in all_snippets if s.could_match(trigger)]
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def clear_snippets(self, triggers=None):
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"""Remove all snippets that match each trigger in 'triggers'. When
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'triggers' is None, empties this dictionary completely."""
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if triggers is None:
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triggers = []
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if triggers:
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for trigger in triggers:
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for snippet in self.get_matching_snippets(trigger, False):
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if snippet in self._snippets:
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self._snippets.remove(snippet)
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if snippet in self._added:
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self._added.remove(snippet)
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else:
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self._snippets = []
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self._added = []
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def addfile(self, path):
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"""Add this file to the files we read triggers from."""
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self.files[path] = _hash_file(path)
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def has_any_file_changed(self):
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"""Returns True if any of our watched files has changed since we read
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it last."""
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for path, hash in self.files.items():
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if not hash or hash != _hash_file(path):
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return True
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return False
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@property
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def files(self):
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"""All files we have read snippets from."""
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return self._files
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@property
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def extends(self):
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"""The list of filetypes this filetype extends."""
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return self._extends
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