direct/python/copy_files_into_yaffs_fs.py

   1 import os
   2 from yaffsfs import *
   3
   4 yaffs_StartUp()
   5 yaffs_mount("/yaffs2/")
   6 absolute_path = os.path.abspath(os.path.curdir)
   7 print "absolute path:", absolute_path
   8 #cwd = os.getcwd()
   9 #print cwd
  10 dir_in_snapshot=[]
  11 files_in_snapshot=[]
  12 symlinks_in_snapshot=[]
  13 unknown_in_snapshot=[]
  14 is_mount_in_snapshot=[]
  15 #def scandir(path):
  16 #    global dir_in_snapshot
  17 #    global files_in_snapshot
  18 #    global symlinks_in_snapshot
  19 #    global unknown_in_snapshot
  20 #path=raw_input("path")
  21 #print "does this path exist?", os.path.exists(path)
  22 #dir_snapshot=os.listdir(path)
  23 #print  dir_snapshot
  24 def is_dir_hidden(dir):
  25     slash_id=[]
  26     for i in range(0, len(dir)):
  27         if dir[i]=="/":
  28             slash_id.append(i)
  29     #print "dir", dir
  30     #print "slash_id", slash_id
  31     if dir[slash_id[len(slash_id)-1]+1]==".":
  32         return True
  33     else :
  34         return False
  35
  36 def scan_dir(path):
  37     global files_in_snapshot
  38     global symlinks_in_snapshot
  39     global search_hidden_directories
  40     dir_in_current_dir=[]
  41     if os.path.exists(path)==False:
  42         print "error#############################"
  43         print "path:", path, "  doesnot exist"
  44         return 0
  45     dir_snapshot=os.listdir(path)
  46     for i in range(0, len(dir_snapshot)):
  47         #print os.path.isdir(dir_snapshot[i])
  48         #print os.path.isfile(dir_snapshot[i])
  49         #print os.path.islink(dir_snapshot[i])
  50         current_snapshot=os.path.join(path, dir_snapshot[i])
  51         #print "current snapshot:", current_snapshot
  52         isDir=os.path.isdir(current_snapshot)
  53         isFile=os.path.isfile(current_snapshot)
  54         isLink=os.path.islink(current_snapshot)
  55         isMount=os.path.ismount(current_snapshot)
  56         #print dir_snapshot[i]
  57         if isDir:
  58             if search_hidden_directories==True or is_dir_hidden(current_snapshot) ==False :
  59                 stat=os.stat(current_snapshot)
  60 #                st_mode ##mode of the folder read/write ect
  61                 dir_in_snapshot.append({"path":current_snapshot, "mode":stat.st_mode})
  62                 dir_in_current_dir.append(current_snapshot)
  63             else :
  64                 print "file is hidden so it is ingored", current_snapshot
  65         elif isFile:
  66             stat=os.stat(current_snapshot)
  67 #            stat.st_ino ##inode number
  68 #            st_nlink ##number of hard links to this file
  69 #            st_size ##size of file
  70             files_in_snapshot.append({"path":current_snapshot, "inode": stat.st_ino, "size":stat.st_size, "num_of_hardlinks":stat.st_nlink, "mode":stat.st_mode})
  71         elif  isLink:
  72             symlinks_in_snapshot.append(current_snapshot)
  73         elif isMount:
  74             is_mount_in_snapshot.append(current_snapshot)
  75         else:
  76             unknown_in_snapshot.append(current_snapshot)
  77
  78     for i in range(0, len(dir_in_current_dir)):
  79         scan_dir(dir_in_current_dir[i])
  80
  81 def print_scanned_dir_list():
  82     global files_in_snapshot
  83     global symlinks_in_snapshot
  84     print "scanned dir"
  85
  86
  87     for i in range(0, len(files_in_snapshot)):
  88         if files_in_snapshot[i]["num_of_hardlinks"]>1:
  89             print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"], "    num of hard links",  files_in_snapshot[i]["num_of_hardlinks"]
  90
  91         else :
  92             print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"]
  93 #        current_open_file=open(files_in_snapshot[i], "r")
  94 #        #current_open_file.f.read(3)
  95 #        lines_in_file=current_open_file.readlines()
  96 #        #use for loop to write code into yaffs file
  97 #        print "number of line of code:", len(lines_in_file)
  98 #    print current_open_file
  99     for i in range(0, len(symlinks_in_snapshot)):
 100         print "symlinks in snapshot:", symlinks_in_snapshot[i]
 101     for i in range(0, len(dir_in_snapshot)):
 102         print "directories in snapshot:", dir_in_snapshot[i]
 103     for i in range(0, len(unknown_in_snapshot)):
 104         print "unknown objects in snapshot:", unknown_in_snapshot[i]
 105
 106 def copy_scanned_files_into_yaffs():
 107     global files_in_snapshot
 108     global symlinks_in_snapshot
 109     global path
 110     print"making directories in yaffs"
 111
 112     for i in range(0, len(dir_in_snapshot)):
 113         path2=dir_in_snapshot[i]["path"][len(path):]
 114         print"path2", path2
 115         dir_path="/yaffs2"+path2
 116         output=yaffs_mkdir(dir_path,dir_in_snapshot[i]["mode"] )
 117         print"copied", dir_path,   "  output", output
 118         print "mode" ,dir_in_snapshot[i]["mode"]
 119     print "copying scanned files into yaffs"
 120
 121
 122     for i in range(0, len(files_in_snapshot)):
 123         if files_in_snapshot[i]["num_of_hardlinks"]>1:
 124             print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"], "    num of hard links",  files_in_snapshot[i]["num_of_hardlinks"]
 125
 126         else :
 127             file_path=files_in_snapshot[i]["path"][len(path):]
 128             current_handle=yaffs_open("yaffs2/"+file_path, 66, files_in_snapshot[i]["mode"])
 129             output=yaffs_close(current_handle)
 130             print "created a file", files_in_snapshot[i]["path"][len(path):], "  ", output
 131             print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"]
 132
 133 #        current_open_file=open(files_in_snapshot[i], "r")
 134 #        #current_open_file.f.read(3)
 135 #        lines_in_file=current_open_file.readlines()
 136 #        #use for loop to write code into yaffs file
 137 #        print "number of line of code:", len(lines_in_file)
 138 #    print current_open_file
 139     for i in range(0, len(symlinks_in_snapshot)):
 140         print "symlinks in snapshot:", symlinks_in_snapshot[i]
 141     for i in range(0, len(dir_in_snapshot)):
 142         print "directories in snapshot:", dir_in_snapshot[i]
 143     for i in range(0, len(unknown_in_snapshot)):
 144         print "unknown objects in snapshot:", unknown_in_snapshot[i]
 145
 146
 147 #path=raw_input("path")
 148 path="/home/timothy/work/yaffs/git/yaffs2"
 149 #path="/home/timothy"
 150
 151 #x=raw_input("search hidden files and directories?[y/n]")
 152 x="n"
 153 if x=="y" or x=="yes":
 154     search_hidden_directories=True
 155 else :
 156     search_hidden_directories=False
 157 scan_dir(path)
 158 copy_scanned_files_into_yaffs()
 159 #print_scanned_dir_list()
 160
 161 print"unmounting yaffs:", yaffs_unmount("yaffs2/")