code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Tools/Directories.py

   1 # -*- coding: utf-8 -*-
   2
   3 from os import path as os_path, mkdir, rmdir, system, walk, stat as os_stat, listdir, readlink, makedirs, error as os_error, symlink, access, F_OK, R_OK, W_OK
   4 from stat import S_IMODE
   5 from re import compile
   6
   7 try:
   8         from os import chmod
   9         have_chmod = True
  10 except:
  11         have_chmod = False
  12
  13 try:
  14         from os import utime
  15         have_utime = True
  16 except:
  17         have_utime = False
  18
  19 SCOPE_TRANSPONDERDATA = 0
  20 SCOPE_SYSETC = 1
  21 SCOPE_FONTS = 2
  22 SCOPE_SKIN = 3
  23 SCOPE_SKIN_IMAGE = 4
  24 SCOPE_USERETC = 5
  25 SCOPE_CONFIG = 6
  26 SCOPE_LANGUAGE = 7
  27 SCOPE_HDD = 8
  28 SCOPE_PLUGINS = 9
  29 SCOPE_MEDIA = 10
  30 SCOPE_PLAYLIST = 11
  31 SCOPE_CURRENT_SKIN = 12
  32 SCOPE_DEFAULTDIR = 13
  33 SCOPE_DEFAULTPARTITION = 14
  34 SCOPE_DEFAULTPARTITIONMOUNTDIR = 15
  35 SCOPE_METADIR = 16
  36
  37 PATH_CREATE = 0
  38 PATH_DONTCREATE = 1
  39 PATH_FALLBACK = 2
  40 defaultPaths = {
  41                 SCOPE_TRANSPONDERDATA: ("/etc/", PATH_DONTCREATE),
  42                 SCOPE_SYSETC: ("/etc/", PATH_DONTCREATE),
  43                 SCOPE_FONTS: ("/usr/share/fonts/", PATH_DONTCREATE),
  44                 SCOPE_CONFIG: ("/etc/enigma2/", PATH_CREATE),
  45                 SCOPE_PLUGINS: ("/usr/lib/enigma2/python/Plugins/", PATH_CREATE),
  46
  47                 SCOPE_LANGUAGE: ("/usr/share/enigma2/po/", PATH_DONTCREATE),
  48
  49                 SCOPE_SKIN: ("/usr/share/enigma2/", PATH_DONTCREATE),
  50                 SCOPE_SKIN_IMAGE: ("/usr/share/enigma2/", PATH_DONTCREATE),
  51                 SCOPE_HDD: ("/hdd/movie/", PATH_DONTCREATE),
  52                 SCOPE_MEDIA: ("/media/", PATH_DONTCREATE),
  53                 SCOPE_PLAYLIST: ("/etc/enigma2/playlist/", PATH_CREATE),
  54
  55                 SCOPE_USERETC: ("", PATH_DONTCREATE), # user home directory
  56
  57                 SCOPE_DEFAULTDIR: ("/usr/share/enigma2/defaults/", PATH_CREATE),
  58                 SCOPE_DEFAULTPARTITION: ("/dev/mtdblock/6", PATH_DONTCREATE),
  59                 SCOPE_DEFAULTPARTITIONMOUNTDIR: ("/usr/share/enigma2/dealer", PATH_CREATE),
  60                 SCOPE_METADIR: ("/usr/share/enigma2/meta", PATH_CREATE),
  61         }
  62
  63 FILE_COPY = 0 # copy files from fallback dir to the basedir
  64 FILE_MOVE = 1 # move files
  65 PATH_COPY = 2 # copy the complete fallback dir to the basedir
  66 PATH_MOVE = 3 # move the fallback dir to the basedir (can be used for changes in paths)
  67 fallbackPaths = {
  68                 SCOPE_CONFIG: [("/home/root/", FILE_MOVE),
  69                                            ("/usr/share/enigma2/defaults/", FILE_COPY)],
  70                 SCOPE_HDD: [("/hdd/movies", PATH_MOVE)]
  71         }
  72
  73 def resolveFilename(scope, base = "", path_prefix = None):
  74         if base[0:2] == "~/":
  75                 # you can only use the ~/ if we have a prefix directory
  76                 assert path_prefix is not None
  77                 base = os_path.join(path_prefix, base[2:])
  78
  79         # don't resolve absolute paths
  80         if base[0:1] == '/':
  81                 return base
  82
  83         if scope == SCOPE_CURRENT_SKIN:
  84                 from Components.config import config
  85                 tmp = defaultPaths[SCOPE_SKIN]
  86                 pos = config.skin.primary_skin.value.rfind('/')
  87                 if pos != -1:
  88                         path = tmp[0]+config.skin.primary_skin.value[:pos+1]
  89                 else:
  90                         path = tmp[0]
  91         else:
  92                 tmp = defaultPaths[scope]
  93                 path = tmp[0]
  94
  95         flags = tmp[1]
  96
  97         if flags == PATH_CREATE:
  98                 if not pathExists(path):
  99                         mkdir(path)
 100
 101         fallbackPath = fallbackPaths.get(scope)
 102
 103         if fallbackPath and not fileExists(path + base):
 104                 for x in fallbackPath:
 105                         if x[1] == FILE_COPY:
 106                                 if fileExists(x[0] + base):
 107                                         system("cp " + x[0] + base + " " + path + base)
 108                                         break
 109                         elif x[1] == FILE_MOVE:
 110                                 if fileExists(x[0] + base):
 111                                         system("mv " + x[0] + base + " " + path + base)
 112                                         break
 113                         elif x[1] == PATH_COPY:
 114                                 if pathExists(x[0]):
 115                                         if not pathExists(defaultPaths[scope][0]):
 116                                                 mkdir(path)
 117                                         system("cp -a " + x[0] + "* " + path)
 118                                         break
 119                         elif x[1] == PATH_MOVE:
 120                                 if pathExists(x[0]):
 121                                         system("mv " + x[0] + " " + path)
 122                                         break
 123
 124         # FIXME: we also have to handle DATADIR etc. here.
 125         return path + base
 126         # this is only the BASE - an extension must be added later.
 127
 128 def pathExists(path):
 129         return os_path.exists(path)
 130
 131 def isMount(path):
 132         return os_path.ismount(path)
 133
 134 def createDir(path, makeParents = False):
 135         try:
 136                 if makeParents:
 137                         makedirs(path)
 138                 else:
 139                         mkdir(path)
 140         except:
 141                 ret = 0
 142         else:
 143                 ret = 1
 144         return ret
 145
 146 def removeDir(path):
 147         try:
 148                 rmdir(path)
 149         except:
 150                 ret = 0
 151         else:
 152                 ret = 1
 153         return ret
 154
 155 def fileExists(f, mode='r'):
 156         if mode == 'r':
 157                 acc_mode = R_OK
 158         elif mode == 'w':
 159                 acc_mode = W_OK
 160         else:
 161                 acc_mode = F_OK
 162         return access(f, acc_mode)
 163
 164 def getRecordingFilename(basename, dirname = None):
 165         # filter out non-allowed characters
 166         non_allowed_characters = "/.\\:*?<>|\""
 167         filename = ""
 168
 169         basename = basename.replace('\xc2\x86', '').replace('\xc2\x87', '')
 170
 171         for c in basename:
 172                 if c in non_allowed_characters or ord(c) < 32:
 173                         c = "_"
 174                 filename += c
 175
 176         if dirname is not None:
 177                 filename = ''.join((dirname, filename))
 178
 179         i = 0
 180         while True:
 181                 path = resolveFilename(SCOPE_HDD, filename)
 182                 if i > 0:
 183                         path += "_%03d" % i
 184                 try:
 185                         open(path + ".ts")
 186                         i += 1
 187                 except IOError:
 188                         return path
 189
 190 # this is clearly a hack:
 191 def InitFallbackFiles():
 192         resolveFilename(SCOPE_CONFIG, "userbouquet.favourites.tv")
 193         resolveFilename(SCOPE_CONFIG, "bouquets.tv")
 194         resolveFilename(SCOPE_CONFIG, "userbouquet.favourites.radio")
 195         resolveFilename(SCOPE_CONFIG, "bouquets.radio")
 196
 197 # returns a list of tuples containing pathname and filename matching the given pattern
 198 # example-pattern: match all txt-files: ".*\.txt$"
 199 def crawlDirectory(directory, pattern):
 200         expression = compile(pattern)
 201         list = []
 202         for root, dirs, files in walk(directory):
 203                 for file in files:
 204                         if expression.match(file) is not None:
 205                                 list.append((root, file))
 206         return list
 207
 208 def copyfile(src, dst):
 209         try:
 210                 f1 = open(src, "rb")
 211                 if os_path.isdir(dst):
 212                         dst = os_path.join(dst, os_path.basename(src))
 213                 f2 = open(dst, "w+b")
 214                 while True:
 215                         buf = f1.read(16*1024)
 216                         if not buf:
 217                                 break
 218                         f2.write(buf)
 219                 st = os_stat(src)
 220                 mode = S_IMODE(st.st_mode)
 221                 if have_chmod:
 222                         chmod(dst, mode)
 223                 if have_utime:
 224                         utime(dst, (st.st_atime, st.st_mtime))
 225         except:
 226                 print "copy", src, "to", dst, "failed!"
 227                 return -1
 228         return 0
 229
 230 def copytree(src, dst, symlinks=False):
 231         names = listdir(src)
 232         if os_path.isdir(dst):
 233                 dst = os_path.join(dst, os_path.basename(src))
 234                 if not os_path.isdir(dst):
 235                         mkdir(dst)
 236         else:
 237                 makedirs(dst)
 238         for name in names:
 239                 srcname = os_path.join(src, name)
 240                 dstname = os_path.join(dst, name)
 241                 try:
 242                         if symlinks and os_path.islink(srcname):
 243                                 linkto = readlink(srcname)
 244                                 symlink(linkto, dstname)
 245                         elif os_path.isdir(srcname):
 246                                 copytree(srcname, dstname, symlinks)
 247                         else:
 248                                 copyfile(srcname, dstname)
 249                 except:
 250                         print "dont copy srcname (no file or link or folder)"
 251         try:
 252                 st = os_stat(src)
 253                 mode = S_IMODE(st.st_mode)
 254                 if have_chmod:
 255                         chmod(dst, mode)
 256                 if have_utime:
 257                         utime(dst, (st.st_atime, st.st_mtime))
 258         except:
 259                 print "copy stats for", src, "failed!"