spaCy/spacy/cli/convert.py

98 lines
3.5 KiB
Python

# coding: utf8
from __future__ import unicode_literals
import plac
from pathlib import Path
from wasabi import Printer
import srsly
from .converters import conllu2json, iob2json, conll_ner2json
from .converters import ner_jsonl2json
# Converters are matched by file extension. To add a converter, add a new
# entry to this dict with the file extension mapped to the converter function
# imported from /converters.
CONVERTERS = {
"conllubio": conllu2json,
"conllu": conllu2json,
"conll": conllu2json,
"ner": conll_ner2json,
"iob": iob2json,
"jsonl": ner_jsonl2json,
}
# File types
FILE_TYPES = ("json", "jsonl", "msg")
FILE_TYPES_STDOUT = ("json", "jsonl")
@plac.annotations(
input_file=("Input file", "positional", None, str),
output_dir=("Output directory. '-' for stdout.", "positional", None, str),
file_type=("Type of data to produce: {}".format(FILE_TYPES), "option", "t", str),
n_sents=("Number of sentences per doc", "option", "n", int),
converter=("Converter: {}".format(tuple(CONVERTERS.keys())), "option", "c", str),
lang=("Language (if tokenizer required)", "option", "l", str),
morphology=("Enable appending morphology to tags", "flag", "m", bool),
)
def convert(
input_file,
output_dir="-",
file_type="jsonl",
n_sents=1,
morphology=False,
converter="auto",
lang=None,
):
"""
Convert files into JSON format for use with train command and other
experiment management functions. If no output_dir is specified, the data
is written to stdout, so you can pipe them forward to a JSONL file:
$ spacy convert some_file.conllu > some_file.jsonl
"""
msg = Printer()
input_path = Path(input_file)
if file_type not in FILE_TYPES:
msg.fail(
"Unknown file type: '{}'".format(file_type),
"Supported file types: '{}'".format(", ".join(FILE_TYPES)),
exits=1,
)
if file_type not in FILE_TYPES_STDOUT and output_dir == "-":
# TODO: support msgpack via stdout in srsly?
msg.fail(
"Can't write .{} data to stdout.".format(file_type),
"Please specify an output directory.",
exits=1,
)
if not input_path.exists():
msg.fail("Input file not found", input_path, exits=1)
if output_dir != "-" and not Path(output_dir).exists():
msg.fail("Output directory not found", output_dir, exits=1)
if converter == "auto":
converter = input_path.suffix[1:]
if converter not in CONVERTERS:
msg.fail("Can't find converter for {}".format(converter), exits=1)
# Use converter function to convert data
func = CONVERTERS[converter]
input_data = input_path.open("r", encoding="utf-8").read()
data = func(input_data, n_sents=n_sents, use_morphology=morphology, lang=lang)
if output_dir != "-":
# Export data to a file
suffix = ".{}".format(file_type)
output_file = Path(output_dir) / Path(input_path.parts[-1]).with_suffix(suffix)
if file_type == "json":
srsly.write_json(output_file, data)
elif file_type == "jsonl":
srsly.write_jsonl(output_file, data)
elif file_type == "msg":
srsly.write_msgpack(output_file, data)
msg.good("Generated output file ({} documents)".format(len(data)), output_file)
else:
# Print to stdout
if file_type == "json":
srsly.write_json("-", data)
elif file_type == "jsonl":
srsly.write_jsonl("-", data)