import ctypes
-dir_in_snapshot=[]
-files_in_snapshot=[]
-symlinks_in_snapshot=[]
-unknown_in_snapshot=[]
-is_mount_in_snapshot=[]
+#dir_in_snapshot=[]
+#files_in_snapshot=[]
+#symlinks_in_snapshot=[]
+#unknown_in_snapshot=[]
+#is_mount_in_snapshot=[]
def check_for_yaffs_errors(output):
if output<0:
##error has happened
"""level 0 error messages"""
"""level 1 basic tasks are shown(creating, deleating,ect)"""
"""level 2 all process are shown"""
+ """level 3 shows minor tasks such as join_paths, ect"""
+ """level 4 is used for bug hunting and shows each step in detail"""
if current_debug_level>=debug_level:
print message
new_path+=path2
else:
new_path+=path2
+
+ debug_message(("adding path ", path1, " to ", path2, " resulting path: ", new_path), 3)
return new_path
def subtract_paths(path1, path2):
if len(path1)>len(path2):
+ debug_message("the two path1 is longer than path2 and can therefore be subtracted.", 4)
##if the two paths are diretly subtractable
if path1[0:len (path2)-1]==path2:
+ debug_message("the two paths are direcly subtractable", 4)
new_path=path1[len(path2):]
elif path1[1:len (path2)-1]==path2:
+ debug_message("the path1 has one more charecter at the begining. assuming that the first chareter is a slash", 4)##fix this assumption.
new_path=path1[len(path2)+1:]
elif path1[1:len (path2)]==path2[1:]:
- new_path=path1[len(path2)-1:]
+ debug_message("the path2 has one more charecter at the begining. assuming that the first chareter is a slash", 4)##fix this assumption.
+
+ new_path=path1[len(path2)+1:]
else :
debug_message("error:could not subtract paths", 0)
debug_message( ("paths do not match:"+ path1+ " "+path2), 0)
return 0
- return new_path
else :
debug_message( ("cannot subtract path2(:", path2, ") from path1(", path1, ")because path 2 is too long"), 0)
+
return 0
-
+ debug_message(("subtracting paths ", path2, " from ", path1, " resulting path: ", new_path), 3)
+ return new_path
def create_file(file):
debug_message( "\n \n \n", 2)
- file_path=yaffs_root_dir_path+file["path"][len(path):]
+ file_path= join_paths(yaffs_root_dir_path, file["path"][len(path):])
debug_message( ("creating file:", file_path), 2)
debug_message (("mode", file["mode"]), 2)
debug_message("opening file",2)
# yaffs_ls(file["path"])
- output=yaffs_unlink(path)
- print"unlinking", output
- check_for_yaffs_errors(output)
+
+ ##if there is already a file in yaffs then remove the file . this is to prevent yaffs from opening a nd writing to a read only file
+ if yaffs_access(file_path, 0)==0:##the 0 means does it exist.
+ debug_message ("file already exists in yaffs", 2)
+ output=yaffs_unlink(file_path)
+ debug_message(("unlinking", file_path, output), 2)
+ check_for_yaffs_errors(output)
+
current_handle=yaffs_open(file_path, yaffs_O_CREAT | yaffs_O_TRUNC| yaffs_O_RDWR, yaffs_S_IREAD | yaffs_S_IWRITE) ##opens a file with mode set to write
debug_message(("current_handle", current_handle), 2)
data_file=open(file["path"], "r")
data_to_be_written= data_file.read()
-# debug_message( ("data to be saved########################################################################/n"+ data_to_be_written), 2)
-# debug_message("###########################################################################################",2)
length_of_file=len(data_to_be_written)
debug_message (("length of data to be written",length_of_file), 2)
output=yaffs_write(current_handle,data_to_be_written , length_of_file)
debug_message(( "error chmoding file:", output), 0)
check_for_yaffs_errors(output)
+
+
+def create_dir(dir, scanned_path, yaffs_path):
+ debug_message( "\n \n \n", 2)
+ absolute_dir_path=join_paths(yaffs_path, subtract_paths(dir["path"],scanned_path))
+ debug_message( ("creating dir:", absolute_dir_path), 2)
+ debug_message (("mode", dir["mode"]), 2)
+
+
+ ##if there is already a dir in yaffs then remove the dir . this is to clean the yaffs folder if it already exists.
+ if yaffs_access(absolute_dir_path, 0)==0:##the 0 means does it exist.
+ debug_message ("folder already exists in yaffs", 2)
+ output=yaffs_unlink(absolute_dir_path)
+ debug_message(("unlinking", absolute_dir_path, output), 2)
+ check_for_yaffs_errors(output)
+
+ output=yaffs_mkdir(absolute_dir_path, dir["mode"] )
+ if output>=0:
+ debug_message(( "creating dir:", output), 2)
+ else :
+ debug_message(( "error creating dir:", output), 0)
+ check_for_yaffs_errors(output)
+
+
+
+
def remove_file_from_path(path):
slash_id=[]
for i in range(0, len(path)):
return True
else :
return False
-
-def scan_dir(path):
+
+def scan_dir(path, search_hidden_directories=True, ):
"""this function scans all of the files and directories in a directory. The function then calls its self on any of the directories that it found. this causes it to build up a tree of all the files and directories """
- global files_in_snapshot
- global symlinks_in_snapshot
- global search_hidden_directories
+ files_in_snapshot=[]
+ symlinks_in_snapshot=[]
+ dir_in_snapshot=[]
dir_in_current_dir=[]
+ unknown_in_snapshot=[]
if os.path.exists(path)==False:
debug_message ("error#############################",0)
debug_message (("path:", path, " doesnot exist"), 0)
# st_size ##size of file
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})
- elif isMount:
- is_mount_in_snapshot.append(current_snapshot)
+# elif isMount:
+# is_mount_in_snapshot.append(current_snapshot)
else:
unknown_in_snapshot.append(current_snapshot)
for i in range(0, len(dir_in_current_dir)):
scan_dir(dir_in_current_dir[i])
+ return (files_in_snapshot, dir_in_snapshot, symlinks_in_snapshot, unknown_in_snapshot)
+##
+##def print_scanned_dir_list():
+## global files_in_snapshot
+## global symlinks_in_snapshot
+## print( "scanning dir", 2)
+##
+##
+## for i in range(0, len(files_in_snapshot)):
+## if files_in_snapshot[i]["num_of_hardlinks"]>1:
+## 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"]
+##
+## else :
+## print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"]
+### current_open_file=open(files_in_snapshot[i], "r")
+### #current_open_file.f.read(3)
+### lines_in_file=current_open_file.readlines()
+### #use for loop to write code into yaffs file
+### print "number of line of code:", len(lines_in_file)
+### print current_open_file
+## for i in range(0, len(symlinks_in_snapshot)):
+## print "symlinks in snapshot:", symlinks_in_snapshot[i]
+## for i in range(0, len(dir_in_snapshot)):
+## print "directories in snapshot:", dir_in_snapshot[i]
+## for i in range(0, len(unknown_in_snapshot)):
+## print "unknown objects in snapshot:", unknown_in_snapshot[i]
+##
-def print_scanned_dir_list():
- global files_in_snapshot
- global symlinks_in_snapshot
- print( "scanning dir", 2)
-
- for i in range(0, len(files_in_snapshot)):
- if files_in_snapshot[i]["num_of_hardlinks"]>1:
- 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"]
-
- else :
- print "inode",files_in_snapshot[i]["inode"],"size",files_in_snapshot[i]["size"],"path:", files_in_snapshot[i]["path"]
-# current_open_file=open(files_in_snapshot[i], "r")
-# #current_open_file.f.read(3)
-# lines_in_file=current_open_file.readlines()
-# #use for loop to write code into yaffs file
-# print "number of line of code:", len(lines_in_file)
-# print current_open_file
- for i in range(0, len(symlinks_in_snapshot)):
- print "symlinks in snapshot:", symlinks_in_snapshot[i]
- for i in range(0, len(dir_in_snapshot)):
- print "directories in snapshot:", dir_in_snapshot[i]
- for i in range(0, len(unknown_in_snapshot)):
- print "unknown objects in snapshot:", unknown_in_snapshot[i]
-
-def copy_scanned_files_into_yaffs():
- global files_in_snapshot
- global symlinks_in_snapshot
- global path
+def copy_scanned_files_into_yaffs(files_in_snapshot,dir_in_snapshot, symlinks_in_snapshot, unknown_in_snapshot, path, yaffs_root_dir_path ):
+#files_in_snapshot, dir_in_snapshot, symlinks_in_snapshot, unknown_in_snapshot
#########################################copy directories into yaffs so the files can be created in these directories
debug_message("making directories in yaffs", 1)
for i in range(0, len(dir_in_snapshot)):
dir_path=join_paths(yaffs_root_dir_path,subtract_paths(dir_in_snapshot[i]["path"], path) )
- output=yaffs_mkdir(dir_path,dir_in_snapshot[i]["mode"] )
- debug_message(("made directory:", dir_path, " output", output), 1)
- debug_message(("mode" ,dir_in_snapshot[i]["mode"]), 2)
+ create_dir(dir_in_snapshot[i], path, yaffs_root_dir_path)
+# output=yaffs_mkdir(dir_path,dir_in_snapshot[i]["mode"] )
+# debug_message(("made directory:", dir_path, " output", output), 1)
+# debug_message(("mode" ,dir_in_snapshot[i]["mode"]), 2)
for i in range(0, len(unknown_in_snapshot)):
debug_message( ("unknown object in snapshot:", unknown_in_snapshot[i]), 0)
-
-def import_into_yaffs(file_path, yaffs_path="/yaffs2/", debug_level=1, copy_hidden_dir=False,new_yaffs_trace_val=0 ):
- global current_debug_level
- global search_hidden_directories
- global yaffs_root_dir_path
- global path
- current_debug_level=debug_level
- search_hidden_directories=copy_hidden_dir
- yaffs_root_dir_path=yaffs_path
- path=file_path
+
+def import_into_yaffs(file_path, yaffs_path="/yaffs2/", debug_level=1, copy_hidden_dir=True,new_yaffs_trace_val=0 ):
+# global current_debug_level
+# global search_hidden_directories
+# global yaffs_root_dir_path
+# global path
+
+# current_debug_level=debug_level
+# search_hidden_directories=copy_hidden_dir
+# yaffs_root_dir_path=yaffs_path
+# path=file_path
old_yaffs_trace_val=yaffs_get_trace()
yaffs_set_trace(new_yaffs_trace_val)
- scan_dir(path)
- copy_scanned_files_into_yaffs()
+
+ data=scan_dir(file_path, copy_hidden_dir)
+ copy_scanned_files_into_yaffs(data[0], data[1], data[2], data[3],file_path, yaffs_path)
+
yaffs_set_trace(old_yaffs_trace_val)
yaffs_StartUp()
yaffs_mount("/yaffs2/")
yaffs_set_trace(0)
- absolute_path = os.path.abspath(os.path.curdir)
+# absolute_path = os.path.abspath(os.path.curdir)
#print "absolute path:", absolute_path
current_debug_level=1
search_hidden_directories=True
# path="/home/timothy/my_stuff/old_laptop/timothy/programming_lejos/"
-
- scan_dir(path)
- copy_scanned_files_into_yaffs()
+ import_into_yaffs(path, yaffs_root_dir_path, current_debug_level, search_hidden_directories, 0 )
+# scan_dir(path)
+# copy_scanned_files_into_yaffs()
#print_scanned_dir_list()
print"unmounting yaffs:", yaffs_unmount("/yaffs2/")
projects / yaffs2.git / blobdiff