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# -*- coding: utf-8 -*-
# Copyright 2019 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
"""Write metadata to JSON files"""
from .common import PostProcessor
from .. import util
import os
class MetadataPP(PostProcessor):
def __init__(self, pathfmt, options):
PostProcessor.__init__(self)
mode = options.get("mode", "json")
if mode == "custom":
self.write = self._write_custom
cfmt = options.get("content-format") or options.get("format")
self.contentfmt = util.Formatter(cfmt).format_map
ext = "txt"
elif mode == "tags":
self.write = self._write_tags
ext = "txt"
else:
self.write = self._write_json
self.indent = options.get("indent", 4)
self.ascii = options.get("ascii", False)
ext = "json"
directory = options.get("directory")
if directory:
self._directory = self._directory_custom
sep = os.sep + (os.altsep or "")
self.metadir = directory.rstrip(sep) + os.sep
extfmt = options.get("extension-format")
if extfmt:
self._filename = self._filename_custom
self.extfmt = util.Formatter(extfmt).format_map
else:
self.extension = options.get("extension", ext)
if options.get("bypost"):
self.run_metadata, self.run = self.run, self.run_metadata
def run(self, pathfmt):
path = self._directory(pathfmt) + self._filename(pathfmt)
with open(path, "w", encoding="utf-8") as file:
self.write(file, pathfmt.kwdict)
def _directory(self, pathfmt):
return pathfmt.realdirectory
def _directory_custom(self, pathfmt):
directory = os.path.join(pathfmt.realdirectory, self.metadir)
os.makedirs(directory, exist_ok=True)
return directory
def _filename(self, pathfmt):
return pathfmt.filename + "." + self.extension
def _filename_custom(self, pathfmt):
kwdict = pathfmt.kwdict
ext = kwdict["extension"]
kwdict["extension"] = pathfmt.extension
kwdict["extension"] = pathfmt.prefix + self.extfmt(kwdict)
filename = pathfmt.build_filename()
kwdict["extension"] = ext
return filename
def _write_custom(self, file, kwdict):
file.write(self.contentfmt(kwdict))
def _write_tags(self, file, kwdict):
tags = kwdict.get("tags") or kwdict.get("tag_string")
if not tags:
return
if not isinstance(tags, list):
taglist = tags.split(", ")
if len(taglist) < len(tags) / 16:
taglist = tags.split(" ")
tags = taglist
file.write("\n".join(tags))
file.write("\n")
def _write_json(self, file, kwdict):
util.dump_json(util.filter_dict(kwdict), file, self.ascii, self.indent)
__postprocessor__ = MetadataPP
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