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56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
"""
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This module partly exists to prevent circular dependencies.
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It also isolates some fairly yucky code related to the fact
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that we have to support two formats of narrow specifications
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from users:
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legacy:
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[["stream", "devel"], ["is", mentioned"]
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modern:
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[
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{"operator": "stream", "operand": "devel", "negated": "false"},
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{"operator": "is", "operand": "mentioned", "negated": "false"},
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]
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And then on top of that, we want to represent narrow
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specification internally as dataclasses.
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"""
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import os
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from collections.abc import Collection, Sequence
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from dataclasses import dataclass
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from django.conf import settings
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@dataclass
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class NarrowTerm:
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# In our current use case we don't yet handle negated narrow terms.
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operator: str
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operand: str
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def narrow_dataclasses_from_tuples(tups: Collection[Sequence[str]]) -> Collection[NarrowTerm]:
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"""
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This method assumes that the callers are in our event-handling codepath, and
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therefore as of summer 2023, they do not yet support the "negated" flag.
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"""
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return [NarrowTerm(operator=tup[0], operand=tup[1]) for tup in tups]
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stop_words_list: list[str] | None = None
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def read_stop_words() -> list[str]:
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global stop_words_list
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if stop_words_list is None:
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file_path = os.path.join(
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settings.DEPLOY_ROOT, "puppet/zulip/files/postgresql/zulip_english.stop"
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)
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with open(file_path) as f:
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stop_words_list = f.read().splitlines()
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return stop_words_list
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