mcy
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gcp
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Basic file copying 

- missing dir are created (without permission check yet)
- new options to deactivate progress bar
This commit is contained in:
Goffi 2010-09-26 12:00:05 +08:00
parent c684e9c28e
commit 4748123e8d
1 changed files with 69 additions and 13 deletions
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gcp
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@ -65,7 +65,8 @@ Get the latest version at http://www.goffi.org
"""
const_DBUS_INTERFACE = "org.goffi.gcp"
const_DBUS_PATH = "/org/goffi/gcp"
const_DBUS_PATH = "/org/goffi/gcp"
const_BUFF_SIZE = 4096
class DbusObject(dbus.service.Object):
@ -112,6 +113,7 @@ class GCP():
self.launchDbusMainInstance()
debug ("gcp launched")
self._main_instance = True
self.buffer_size = const_BUFF_SIZE
else:
raise e
@ -147,32 +149,38 @@ class GCP():
error ("Can't read mounts table")
return ret
def __appendToList(self, path, destpath, options):
def __appendToList(self, path, dest_path, options):
"""Add a file to the copy list
@param path: absolute path of file
@param options: options as return by optparse"""
debug ("Adding to copy list: %s ==> %s (%s)", path, destpath, self.getFsType(destpath))
debug ("Adding to copy list: %s ==> %s (%s)", path, dest_path, self.getFsType(dest_path))
try:
self.bytes_left+=os.path.getsize(path)
self.files_left+=1
self.copy_list.append((path, destpath, options))
self.copy_list.append((path, dest_path, options))
print "total size:", float(self.bytes_left/1024/1024), "Mb (%i)" % self.files_left
except OSError,e:
error("Can't copy %(path)s: %(exception)s" % {'path':path, 'exception':e.strerror})
def __appendDirToList(self, dirpath, destpath, options):
def __appendDirToList(self, dirpath, dest_path, options):
"""Add recursively directory to the copy list
@param path: absolute path of dir
@param options: options as return by optparse"""
#We first check that the dest path exists, and create it if needed
if not os.path.exists(dest_path):
debug ("Creating directory %s" % dest_path)
os.makedirs(dest_path) #TODO: check permissions
#TODO: check that dest_path is an accessible dir,
# and skip file/write error in log if needed
try:
for filename in os.listdir(dirpath):
filepath = os.path.join(dirpath,filename)
if os.path.isdir(filepath):
full_destpath = os.path.join(destpath,filename)
self.__appendDirToList(filepath, full_destpath, options)
full_dest_path = os.path.join(dest_path,filename)
self.__appendDirToList(filepath, full_dest_path, options)
else:
self.__appendToList(filepath, destpath, options)
self.__appendToList(filepath, dest_path, options)
except OSError,e:
error("Can't copy %(path)s: %(exception)s" % {'path':dirpath, 'exception':e.strerror})
@ -180,9 +188,9 @@ class GCP():
"""Check thats args are files, and add them to copy list"""
assert(len (args)>=2)
try:
destpath = os.path.normpath(os.path.join(os.path.expanduser(source_path), args.pop()))
dest_path = os.path.normpath(os.path.join(os.path.expanduser(source_path), args.pop()))
except OSError,e:
error ("Invalid destpath: %s",e)
error ("Invalid dest_path: %s",e)
for path in args:
abspath = os.path.normpath(os.path.join(os.path.expanduser(source_path), path))
@ -190,14 +198,54 @@ class GCP():
warning("The path given in arg doesn't exist or is not accessible: %s",abspath)
else:
if os.path.isdir(abspath):
full_destpath = destpath if os.path.isabs(path) else os.path.normpath(os.path.join(destpath, path))
full_dest_path = dest_path if os.path.isabs(path) else os.path.normpath(os.path.join(dest_path, path))
if not options.recursive:
warning ('omitting directory "%s"' % abspath)
else:
self.__appendDirToList(abspath, full_destpath, options)
self.__appendDirToList(abspath, full_dest_path, options)
else:
self.__appendToList(abspath, destpath, options)
self.__appendToList(abspath, dest_path, options)
def __copyNextFile(self):
"""Take the last file in the list, and launch the copy using glib io_watch event
@return: True a file was added, False else"""
if self.copy_list:
source_path, dest_path, options = self.copy_list.pop()
source_fd = open(source_path, 'r')
filename = os.path.basename(source_path)
assert(filename)
dest_file = os.path.join(dest_path,filename)
if os.path.exists(dest_file):
warning ("File [%s] already exists, skipping it !" % dest_file)
return True
dest_fd = open(dest_file, 'w')
self.total=0
gobject.io_add_watch(source_fd,gobject.IO_IN,self._copyFile,(dest_fd,options), priority=gobject.PRIORITY_HIGH)
print "** COPYING",source_path,"==>",dest_file
return True
else:
#Nothing left to copy, we quit
self.loop.quit()
def _copyFile(self, source_fd, condition, data):
"""Actually copy the file, callback used with io_add_watch
@param source_fd: file descriptor of the file to copy
@param condition: condition which launched the callback (glib.IO_IN)
@param data: tuple with (destination file descriptor, copying options)"""
dest_fd,options = data
buff = source_fd.read(self.buffer_size)
dest_fd.write(buff)
self.total += len(buff)
sys.stdout.write('%i written\r' % self.total)
if len(buff) != self.buffer_size:
sys.stdout.write('\n---\n')
source_fd.close()
dest_fd.close()
return False
return True
def parseArguments(self, full_args=sys.argv[1:], source_path = os.getcwd()):
"""Parse arguments and add files to queue
@ -222,7 +270,14 @@ class GCP():
parser.add_option("--no-unicode-fix", action="store_true", default=False,
help="don't fixe name encoding errors") #TODO
parser.add_option("--no-progress", action="store_false", dest="progress", default=True,
help="deactivate progress bar")
(options, args) = parser.parse_args(full_args)
if options.progress and not pbar_available:
warning ("Progress bar is not available, deactivating")
options.progress = False
if not self._main_instance:
info ("There is already one instance of %s running, pluging to it" % NAME_SHORT)
@ -235,6 +290,7 @@ class GCP():
return (False, _error_msg)
debug("adding args to gcp: %s",args)
self.__checkArgs(options, source_path, args)
gobject.idle_add(self.__copyNextFile)
return (True,'')
def go(self):