def backuptar(directorypath, recursive_subfolders=True, compress=None):
"""
Returns file descriptor for process that makes tar archive.
In other words executes a child process and create a Pipe to communicate with it.
"""
if not os.path.isdir(directorypath):
dhnio.Dprint(1, 'backup_tar.backuptar ERROR %s not found' % directorypath)
return None
subdirs = 'subdirs'
if not recursive_subfolders:
subdirs = 'nosubdirs'
if compress is None:
compress = 'none'
# dhnio.Dprint(14, "backup_tar.backuptar %s %s compress=%s" % (directorypath, subdirs, compress))
if dhnio.Windows():
if dhnio.isFrozen():
commandpath = "dhnbackup.exe"
cmdargs = [commandpath, subdirs, compress, directorypath]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, subdirs, compress, directorypath]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, subdirs, compress, directorypath]
if not os.path.isfile(commandpath):
dhnio.Dprint(1, 'backup_tar.backuptar ERROR %s not found' % commandpath)
return None
# dhnio.Dprint(14, "backup_tar.backuptar going to execute %s" % str(cmdargs))
# p = run(cmdargs)
p = child_process.pipe(cmdargs)
return p
def backuptarfile(filepath, compress=None):
"""
Almost same - returns file descriptor for process that makes tar archive.
But tar archive is created from single file, not folder.
"""
if not os.path.isfile(filepath):
dhnio.Dprint(1, 'backup_tar.backuptarfile ERROR %s not found' % filepath)
return None
if compress is None:
compress = 'none'
# dhnio.Dprint(14, "backup_tar.backuptarfile %s compress=%s" % (filepath, compress))
if dhnio.Windows():
if dhnio.isFrozen():
commandpath = "dhnbackup.exe"
cmdargs = [commandpath, 'nosubdirs', compress, filepath]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, 'nosubdirs', compress, filepath]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, 'nosubdirs', compress, filepath]
if not os.path.isfile(commandpath):
dhnio.Dprint(1, 'backup_tar.backuptarfile ERROR %s not found' % commandpath)
return None
# dhnio.Dprint(12, "backup_tar.backuptarfile going to execute %s" % str(cmdargs))
# p = run(cmdargs)
p = child_process.pipe(cmdargs)
return p
def extracttar(tarfile, outdir):
"""
Opposite method, run dhnbackup to extract files and folders from ".tar" file.
"""
if not os.path.isfile(tarfile):
dhnio.Dprint(1, 'backup_tar.extracttar ERROR %s not found' % tarfile)
return None
# dhnio.Dprint(12, "backup_tar.extracttar %s %s" % (tarfile, outdir))
if dhnio.Windows():
if dhnio.isFrozen():
commandpath = 'dhnbackup.exe'
cmdargs = [commandpath, 'extract', tarfile, outdir]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, 'extract', tarfile, outdir]
else:
commandpath = "dhnbackup.py"
cmdargs = [sys.executable, commandpath, 'extract', tarfile, outdir]
if not os.path.isfile(commandpath):
dhnio.Dprint(1, 'backup_tar.extracttar ERROR %s is not found' % commandpath)
return None
# p = run(cmdargs)
p = child_process.pipe(cmdargs)
return p