Public part of my dotfiles.
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#!/usr/bin/env python
import os
import subprocess
import sys
import logging
import magic
import typing
import coloredlogs
# TODO Able to ignore extensions everywhere
class ArchiveType:
suffix: str = ""
fullname: str = ""
dest_suffix: str = ""
mime: typing.Optional[str] = None
header: typing.Optional[bytes] = None
extract_cmd: typing.Optional[typing.List[str]] = None
single_file = False
append_dest = False
def __init__(self) -> None:
self.log = logging.getLogger(self.__class__.__name__)
def dest_name(self, archive: str) -> str:
return archive + self.dest_suffix
def fits(self, name_lower: str, mime: str, header: bytes) -> bool:
if not name_lower.endswith(self.suffix):
return False
if self.mime is not None and mime != self.mime:
return False
if self.header is not None and not header.startswith(self.header):
return False
return True
def _get_cmd(self, archive: str, dest: str) -> typing.List[str]:
assert self.extract_cmd
cmd = self.extract_cmd + [archive]
if self.append_dest:
cmd.append(dest)
return cmd
def extract(self, archive: str, dest: str) -> None:
cmd = self._get_cmd(archive, dest)
if not self.single_file:
os.mkdir(dest)
self.log.info("Extracting '%s' into '%s'", archive, dest)
self.log.debug("%s", cmd)
if self.single_file:
r = subprocess.run(cmd)
else:
r = subprocess.run(cmd, cwd=dest)
r.check_returncode()
if self.single_file:
assert os.path.isfile(dest)
extract_fun: typing.Optional[typing.Callable[[str, str], None]] = None
class ArchiveZip(ArchiveType):
suffix = ".zip"
mime = "application/zip"
extract_cmd = ["unzip"]
class Archive7z(ArchiveType):
suffix = ".7z"
mime = "application/x-7z-compressed"
extract_cmd = ["7z", "x"]
class ArchiveRar(ArchiveType):
suffix = ".rar"
mime = "application/x-rar"
extract_cmd = ["unrar", "x"]
class ArchiveTar(ArchiveType):
suffix = ".tar"
mime = "application/x-tar"
extract_cmd = ["tar", "--extract", "--file"]
class ArchiveTarGz(ArchiveType):
suffix = ".tar.gz"
mime = "application/gzip"
extract_cmd = ["tar", "--extract", "--gzip", "--file"]
class ArchiveTarXz(ArchiveType):
suffix = ".tar.xz"
mime = "application/x-xz"
extract_cmd = ["tar", "--extract", "--xz", "--file"]
class ArchiveGzip(ArchiveType):
suffix = ".gz"
mime = "application/gzip"
single_file = True
extract_cmd = ["gunzip"]
class TreeExtractor:
ARCHIVE_TYPES: typing.List[ArchiveType] = [
ArchiveZip(),
Archive7z(),
ArchiveRar(),
ArchiveTar(),
ArchiveTarGz(),
ArchiveTarXz(),
ArchiveGzip(),
]
def __init__(self) -> None:
self.log = logging.getLogger("TreeExtractor")
self.suffixes = set()
for archive_type in self.ARCHIVE_TYPES:
self.suffixes.add(archive_type.suffix)
def extract_tree(self, directory: str = ".") -> None:
for root, dirs, files in os.walk(directory):
real_root = os.path.realpath(root)
for name in files:
self.log.debug("Handling '%s' '%s'", real_root, name)
# Initial filtering with suffix
name_lower = name.lower()
for suffix in self.suffixes:
if name_lower.endswith(suffix):
break
else:
self.log.debug("Suffix not matched: %s", name)
continue
filepath = os.path.join(real_root, name)
with open(filepath, "rb") as filedesc:
header = filedesc.read(1024)
mime = magic.detect_from_content(header).mime_type
archive_type = None
for archtyp in self.ARCHIVE_TYPES:
if archtyp.fits(name_lower, mime, header):
archive_type = archtyp
break
if not archive_type:
self.log.debug("Not matched: %s", filepath)
continue
dest_name = archive_type.dest_name(name)
dest = os.path.join(real_root, dest_name)
dest_tmp = dest + ".tmp"
try:
archive_type.extract(filepath, dest_tmp)
except BaseException as e:
# TODO Parameters stop on error
self.log.error(e, exc_info=True)
else:
os.unlink(filepath)
os.rename(dest_tmp, dest)
if os.path.isdir(dest):
self.extract_tree(dest)
def main(self) -> None:
directory = sys.argv[1] if len(sys.argv) > 1 else "."
self.extract_tree(directory)
if __name__ == "__main__":
coloredlogs.install(level="DEBUG", fmt="%(levelname)s %(message)s")
TreeExtractor().main()