workdirfs/workdirfs.py
2020-02-29 06:13:10 +01:00

349 lines
13 KiB
Python
Executable file

#!/usr/bin/env -S python3 -u
from __future__ import with_statement
import os
import sys
import errno
from datetime import datetime, timedelta, date
import time
import fileinput
import argparse
import gzip
import shutil
import json
import traceback
try:
from fuse import FUSE, FuseOSError, Operations
except:
try:
from fusepy import FUSE, FuseOSError, Operations
except:
print("please install fusepy")
raise errno.ModuleNotFoundError
class WorkdirFS(Operations):
def __init__(self, args):
self.args = args
# init configdir and configlast
self.confdir = os.path.join(os.environ['HOME'], '.local', 'workdirfs')
self.configlast = os.path.join(self.confdir, 'yesterday')
self._checkdir(self.confdir)
# init archivbase and xdg_archive
if self.args.archive.startswith("/"):
self.archivpathbase = self.args.archive
self.xdgarchivpathbase = self.args.archive
else:
self.archivpathbase = os.path.join(os.environ['HOME'], self.args.archive)
self.xdgarchivpathbase = os.path.join('$HOME', self.args.archive)
self._xdg()
self._give_me_today()
self.todaypath = self._checkdir(self._give_me_archivpath())
self.yesterdaypath = self._checkdir(self._give_me_archivpath(self._give_me_yesterday()))
print("initial yesterdaypath is {}".format(self.yesterdaypath))
print("initial todaypath is {}".format(self.todaypath))
# Helpers
# =======
def _xdg(self):
foundarchive=False
foundwork=False
xdgdir = os.path.join(os.environ['HOME'], '.config')
xdguserdirs = os.path.join(xdgdir, 'user-dirs.dirs')
if not os.path.exists(xdgdir):
os.mkdir(xdgdir)
try:
with fileinput.input(xdguserdirs, inplace=True) as fh:
for line in fh:
if line.startswith('XDG_ARCHIVE_DIR'):
print('XDG_ARCHIVE_DIR="' + self.xdgarchivpathbase + '"', end='\n')
foundarchive=True
elif line.startswith('XDG_WORK_DIR'):
print('XDG_WORK_DIR="$HOME/' + self.args.mountpoint + '"', end='\n')
foundwork=True
else:
print(line, end='')
except:
print("File not existing, create it: {}".format(xdguserdirs))
if not foundarchive:
with open(xdguserdirs, 'a') as fh:
fh.write("XDG_ARCHIVE_DIR=" + self.xdgarchivpathbase + '\n')
if not foundwork:
with open(xdguserdirs, 'a') as fh:
fh.write('XDG_WORK_DIR=\"$HOME/' + self.args.mountpoint + '"\n')
def _give_me_today(self):
self.today = datetime.now() - timedelta(hours=self.args.timeoffset)
return self.today
def _give_me_yesterday(self):
if os.path.exists(self.configlast):
with open(self.configlast, 'r') as fh:
self.yesterday = datetime.strptime(fh.readline().strip(), "%Y-%m-%d")
else:
self.yesterday = self.today
self._checkdir(self.confdir)
if not os.path.isdir(self.confdir):
os.mkdir(self.confdir)
with open(self.configlast, 'w') as fh:
fh.write(self.yesterday.date().strftime("%Y-%m-%d"))
return self.yesterday
def _give_me_archivpath(self, _date=None):
archivpathbase = self.archivpathbase
if _date == None:
_date = self.today
if self.args.yearlydir:
archivpathbase = os.path.join(archivpathbase, _date.strftime("%Y"))
if self.args.monthlydir:
archivpathbase = os.path.join(archivpathbase, _date.strftime("%m"))
if self.args.weeklydir:
archivpathbase = os.path.join(archivpathbase, int(_date.strftime("%W"))+1)
self.archivpath = os.path.join(archivpathbase, _date.strftime("%Y-%m-%d"))
return self.archivpath
def _checkdir(self, path):
if not os.path.exists(path) and not os.path.isdir(path):
try:
os.makedirs(path, exist_ok=True)
print("Created directory {}".format(path), flush=True)
except Exception as e:
print("[-] Error while check dir and zip files: ", e)
return path
def _full_path(self, partial):
#self._give_me_today()
path = self._give_me_archivpath()
self._give_me_yesterday()
if partial.startswith("/"):
partial = partial[1:]
path = os.path.join(
self._checkdir( self._give_me_archivpath(self._give_me_today())),
partial
)
if self.today.date() > self.yesterday.date():
self._cleanup_dirs()
self.yesterday = self.today
self.yesterdaypath = self.todaypath
with open(self.configlast, 'w') as fh:
fh.write(self.today.strftime("%Y-%m-%d"))
return path
def _cleanup_dirs(self):
print("Cleanup dir", self.yesterdaypath)
zip_fileext=".gz"
zip_compressionlevel=5
#for root, dirs, files in os.walk(self.yesterdaypath, topdown=False):
print("Archivepath",self.archivpathbase)
for root, dirs, files in os.walk(self.archivpathbase, topdown=False):
for d in dirs:
print("cleanup",os.path.join(root, d))
if not d == self.todaypath and not os.listdir(os.path.join(root, d)):
print("Directory is empty -> remove it",
os.path.join(root, d))
os.rmdir(os.path.join(root, d))
if self.args.compress:
for f in files:
print("compress", os.path.join(root, f))
if zip_fileext not in f:
try:
with open(os.path.join(root, f), 'rb') as f_in:
with gzip.open(
os.path.join(root, f+zip_fileext),
'wb',
compresslevel=zip_compressionlevel) as f_out:
shutil.copyfileobj(f_in, f_out)
except Exception as e:
print("Error during zipping file {}".format(os.path.join(root, f)), e)
traceback.print_exc()
else:
os.remove(os.path.join(root, f))
# Filesystem methods
# ==================
def access(self, path, mode):
full_path = self._full_path(path)
if not os.access(full_path, mode):
raise FuseOSError(errno.EACCES)
def chmod(self, path, mode):
full_path = self._full_path(path)
return os.chmod(full_path, mode)
def chown(self, path, uid, gid):
full_path = self._full_path(path)
return os.chown(full_path, uid, gid)
def getattr(self, path, fh=None):
full_path = self._full_path(path)
st = os.lstat(full_path)
return dict((key, getattr(st, key)) for key in ('st_atime',
'st_ctime',
'st_gid',
'st_mode',
'st_mtime',
'st_nlink',
'st_size',
'st_uid'))
def readdir(self, path, fh):
full_path = self._full_path(path)
dirents = ['.', '..']
if os.path.isdir(full_path):
dirents.extend(os.listdir(full_path))
for r in dirents:
yield r
def readlink(self, path):
pathname = os.readlink(self._full_path(path))
if pathname.startswith("/"):
# Path name is absolute, sanitize it.
return os.path.relpath(pathname, os.path.join(os.environ['HOME'],
self.args.archive))
else:
return pathname
def mknod(self, path, mode, dev):
return os.mknod(self._full_path(path), mode, dev)
def rmdir(self, path):
full_path = self._full_path(path)
return os.rmdir(full_path)
def mkdir(self, path, mode):
return os.mkdir(self._full_path(path), mode)
def statfs(self, path):
full_path = self._full_path(path)
stv = os.statvfs(full_path)
return dict((key, getattr(stv, key)) for key in ('f_bavail',
'f_bfree',
'f_blocks',
'f_bsize',
'f_favail',
'f_ffree',
'f_files',
'f_flag',
'f_frsize',
'f_namemax'))
def unlink(self, path):
return os.unlink(self._full_path(path))
def symlink(self, name, target):
return os.symlink(target, self._full_path(name))
def rename(self, old, new):
return os.rename(self._full_path(old), self._full_path(new))
def link(self, target, name):
return os.link(self._full_path(name), self._full_path(target))
def utimens(self, path, times=None):
return os.utime(self._full_path(path), times)
# File methods
# ============
def open(self, path, flags):
full_path = self._full_path(path)
return os.open(full_path, flags)
def create(self, path, mode, fi=None):
full_path = self._full_path(path)
return os.open(full_path, os.O_WRONLY | os.O_CREAT, mode)
def read(self, path, length, offset, fh):
os.lseek(fh, offset, os.SEEK_SET)
return os.read(fh, length)
def write(self, path, buf, offset, fh):
os.lseek(fh, offset, os.SEEK_SET)
return os.write(fh, buf)
def truncate(self, path, length, fh=None):
full_path = self._full_path(path)
with open(full_path, 'r+') as f:
f.truncate(length)
def flush(self, path, fh):
return os.fsync(fh)
def release(self, path, fh):
return os.close(fh)
def fsync(self, path, fdatasync, fh):
return self.flush(path, fh)
def main(args):
#FUSE(WorkdirFS(root), mountpoint, nothreads=True, foreground=True)
# start FUSE filesystem
mountpoint = os.path.join(os.environ['HOME'], args.mountpoint)
if not (os.path.isdir(mountpoint) or os.path.exists(mountpoint)):
os.mkdir(mountpoint, 0o744)
FUSE(WorkdirFS(args), os.path.join(os.environ['HOME'], args.mountpoint), nothreads=True, foreground=True)
if __name__ == '__main__':
#main(sys.argv[2], sys.argv[1])
parser = argparse.ArgumentParser()
parser.add_argument("-a", "--archive",
default='archive/workdir', help="""Path to archivedir-base. When path
starts with "/", it's an absolute path, else it is handled as path
relative to users home.
Defaults to »archive/workdir« """)
parser.add_argument("-m", "--mountpoint",
default='Work', help="""Path to Workdir. This path is always
relative to users homedir. "/" at the begin get removed.
Defaults to »Work«""")
parser.add_argument("-t", "--timeoffset", type=int, default=4, help="""If you're working
all day till 3 o'clock in the morning, set it to 4, so next day
archive-dir will be created 4 hours after midnight. You have 1h
tolerance, if you're working one day a little bit longer.
Defaults to »4«""")
parser.add_argument("-Y", "--yearlydir", action="store_true",
help="""Create a yearly directory - named YYYY - under »archive«.
Defaults to »False«""")
parser.add_argument("-M", "--monthlydir", action="store_true",
help="""Create a monthly directory - named MM - under »archive«.
Defaults to »False«""")
parser.add_argument("-W", "--weeklydir", action="store_true",
help="""Create a weekly directory - named WW - under »archive«.
Defaults to »False«""")
parser.add_argument("-C", "--compress", action="store_false",
help="""Compress each file in archive
Defaults to »True«""")
args = parser.parse_args()
print(args)
#root = os.environ['HOME']+'/archive'
#mountpoint = os.environ['HOME']+'/Work'
main(args)