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from Plugins.Plugin import PluginDescriptor
from os import path as os_path, walk as os_walk
from string import lower
def getExtension(file):
p = file.rfind('.')
if p == -1:
ext = ""
else:
ext = file[p+1:]
return lower(ext)
class Scanner:
def __init__(self, name, extensions = [], paths_to_scan = [], description = "", openfnc = None):
self.extensions = extensions
self.name = name
self.paths_to_scan = paths_to_scan
self.description = description
self.openfnc = openfnc
def checkFile(self, filename):
return True
def handleFile(self, res, filename, ext):
if (self.extensions is None or ext in self.extensions) and self.checkFile(filename):
res.setdefault(self, []).append(filename)
def __repr__(self):
return "<Scanner " + self.name + ">"
def open(self, list, *args, **kwargs):
if self.openfnc is not None:
self.openfnc(list, *args, **kwargs)
class ScanPath:
def __init__(self, path, with_subdirs = False):
self.path = path
self.with_subdirs = with_subdirs
def __repr__(self):
return self.path + "(" + str(self.with_subdirs) + ")"
# we will use this in a set(), so we need to implement __hash__ and __cmp__
def __hash__(self):
return self.path.__hash__() ^ self.with_subdirs.__hash__()
def __cmp__(self, other):
if self.path < other.path:
return -1
elif self.path > other.path:
return +1
else:
return self.with_subdirs.__cmp__(other.with_subdirs)
#scanner = [
# Scanner(extensions = ["jpg", "jpe", "jpeg"],
# paths_to_scan =
# [
# ScanPath(path = "DCIM", with_subdirs = True),
# ScanPath(path = "", with_subdirs = False),
# ],
# name = "Pictures",
# description = "View Photos..."
# ),
#
# Scanner(extensions = ["mpg", "vob", "ts"],
# paths_to_scan =
# [
# ScanPath(path = ""),
# ScanPath(path = "movie", with_subdirs = True),
# ],
# name = "Movie",
# description = "View Movies..."
# ),
#
# Scanner(extensions = ["mp3", "ogg"],
# name = "Media",
# paths_to_scan =
# [
# ScanPath(path = "", with_subdirs = False),
# ],
# description = "Play music..."
# ),
#
# Scanner(extensions = ["ipk"],
# name = "Packages",
# paths_to_scan =
# [
# ScanPath(path = ""),
# ],
# description = "Install software..."
# ),
# ]
def ScanDevice(mountpoint):
from Components.PluginComponent import plugins
scanner = [ ]
for p in plugins.getPlugins(PluginDescriptor.WHERE_FILESCAN):
l = p()
if not isinstance(l, list):
l = [l]
scanner += l
print "scanner:", scanner
res = { }
# merge all to-be-scanned paths, with priority to
# with_subdirs.
paths_to_scan = set()
# first merge them all...
for s in scanner:
paths_to_scan.update(set(s.paths_to_scan))
# ...then remove with_subdir=False when same path exists
# with with_subdirs=True
for p in set(paths_to_scan):
if p.with_subdirs == True and ScanPath(path=p.path) in paths_to_scan:
paths_to_scan.remove(ScanPath(path=p.path))
# convert to list
paths_to_scan = list(paths_to_scan)
# now scan the paths
for p in paths_to_scan:
path = os_path.join(mountpoint, p.path)
for root, dirs, files in os_walk(path):
for f in files:
ext = getExtension(f)
pathname = os_path.join(root, f)
for s in scanner:
s.handleFile(res, pathname, ext)
# if we really don't want to scan subdirs, stop here.
if not p.with_subdirs:
del dirs[:]
# res is a dict with scanner -> [files]
return res
def execute(option):
print "execute", option
if option is None:
return
(_, scanner, files, session) = option
scanner.open(files, session)
def scan(session):
from Screens.ChoiceBox import ChoiceBox
# HARDCODED - need to scan all mountpoints
res = ScanDevice("/hdd/")
list = [ (r.description, r, res[r], session) for r in res ]
if list == [ ]:
print "nothing found"
return
session.openWithCallback(execute, ChoiceBox,
title = "The following files were found...",
list = list)
def main(session, **kwargs):
scan(session)
def Plugins(**kwargs):
return PluginDescriptor(name="MediaScanner", description="Scan Files...", where = PluginDescriptor.WHERE_PLUGINMENU, fnc=main)
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