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81 lines
2.8 KiB
81 lines
2.8 KiB
6 years ago
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import datetime
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import glob
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import itertools
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import os
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import pytz
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from typing import Callable, Dict, List, Iterable, Union, cast
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from .metadata import MetaTree
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from .processchain import ProcessorChains
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def file_list(root: str, listcache: Dict) -> Callable:
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def get_file_list(path_glob: str, *, sort_order: str = "ctime", reverse: bool = False, limit: int = 0) -> Iterable:
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stattable = cast(List, [])
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if path_glob in listcache:
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stattable = listcache[path_glob]
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else:
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for fil in glob.glob(os.path.join(root, path_glob)):
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if os.path.isdir(fil):
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continue
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if fil.endswith(".meta") or fil.endswith("~"):
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continue
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st = os.stat(fil)
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stattable.append(
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{
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"file_path": os.path.relpath(fil, root),
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"file_name": os.path.split(fil)[-1],
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"mtime": st.st_mtime,
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"ctime": st.st_ctime,
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"size": st.st_size,
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"ext": os.path.splitext(fil)[1],
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}
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)
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listcache[path_glob] = stattable
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ret = sorted(stattable, key=lambda x: x[sort_order], reverse=reverse)
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if limit > 0:
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return itertools.islice(ret, limit)
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return ret
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return get_file_list
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def file_name(root: str, metatree: MetaTree, processor_chains: ProcessorChains, namecache: Dict) -> Callable:
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def get_file_name(file_name: str) -> Dict:
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if file_name in namecache:
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return namecache[file_name]
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metadata = metatree.get_metadata(file_name)
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chain = processor_chains.get_chain_for_filename(os.path.join(root, file_name), ctx=metadata)
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namecache[file_name] = chain.output_filename
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return namecache[file_name]
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return get_file_name
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def file_content(root: str, metatree: MetaTree, processor_chains: ProcessorChains, contcache: Dict) -> Callable:
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def get_file_content(file_name: str) -> Iterable:
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if file_name in contcache:
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return contcache[file_name]
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metadata = metatree.get_metadata(file_name)
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chain = processor_chains.get_chain_for_filename(os.path.join(root, file_name), ctx=metadata)
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contcache[file_name] = chain.output
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return chain.output
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return get_file_content
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def file_metadata(metatree: MetaTree) -> Callable:
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def get_file_metadata(file_name: str) -> Dict:
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return metatree.get_metadata(file_name)
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return get_file_metadata
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def time_iso8601(timezone: str) -> Callable:
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tz = pytz.timezone(timezone)
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def get_time_iso8601(time_t: Union[int, float]) -> str:
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return datetime.datetime.fromtimestamp(time_t, tz).isoformat("T")
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return get_time_iso8601
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