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50 lines
2.0 KiB
Python
50 lines
2.0 KiB
Python
# coding: utf8
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from __future__ import unicode_literals
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import plac
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from pathlib import Path
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from ..compat import symlink_to, path2str
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from ..util import prints
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from .. import util
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@plac.annotations(
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origin=("package name or local path to model", "positional", None, str),
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link_name=("name of shortuct link to create", "positional", None, str),
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force=("force overwriting of existing link", "flag", "f", bool)
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)
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def link(cmd, origin, link_name, force=False):
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"""
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Create a symlink for models within the spacy/data directory. Accepts
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either the name of a pip package, or the local path to the model data
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directory. Linking models allows loading them via spacy.load(link_name).
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"""
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if util.is_package(origin):
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model_path = util.get_model_package_path(origin)
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else:
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model_path = Path(origin)
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if not model_path.exists():
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prints("The data should be located in %s" % path2str(model_path),
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title="Can't locate model data", exits=1)
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link_path = util.get_data_path() / link_name
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if link_path.exists() and not force:
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prints("To overwrite an existing link, use the --force flag.",
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title="Link %s already exists" % link_name, exits=1)
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elif link_path.exists():
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link_path.unlink()
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try:
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symlink_to(link_path, model_path)
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except:
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# This is quite dirty, but just making sure other errors are caught.
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prints("Creating a symlink in spacy/data failed. Make sure you have "
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"the required permissions and try re-running the command as "
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"admin, or use a virtualenv. You can still import the model as a "
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"module and call its load() method, or create the symlink manually.",
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"%s --> %s" % (path2str(model_path), path2str(link_path)),
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title="Error: Couldn't link model to '%s'" % link_name)
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raise
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prints("%s --> %s" % (path2str(model_path), path2str(link_path)),
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"You can now load the model via spacy.load('%s')." % link_name,
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title="Linking successful")
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