yaffs Further name changes and file reorganisation
[yaffs2.git] / direct / python / yaffs_browser.py
old mode 100644 (file)
new mode 100755 (executable)
index e8fc660..effe5a3
+#!/usr/bin/python 
+##
+## YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+##
+## Copyright (C) 2002-2010 Aleph One Ltd.
+##   for Toby Churchill Ltd and Brightstar Engineering
+##
+## Created by Timothy Manning <timothy@yaffs.net>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License version 2 as
+## published by the Free Software Foundation.
+##
+
 import Tkinter as tk
 from yaffsfs import *
+#import examples
+import ctypes
 
-yaffs_StartUp()
-yaffs_mount("yaffs2/")
+yaffs_start_up()
+yaffs_mount("/yaffs2/")
 root_window =tk.Tk()
+root_window.title("YAFFS Browser")
+mount_list_text_variable=tk.StringVar()
+
+mount_list_text_variable.set("/yaffs2/")
+current_directory_dict={}
+open_windows_list=[]
+
+class editor():
+    yaffs_handle=0
+    file_editor_root =0
+    save_button=[]
+    file_contents=0
+    file_path=0
+    isLink=0
+    def save_file(self):
+        if  self.isLink==True:
+            target_path=self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
+            target_path=target_path[0:len(target_path)-1]
+            new_path=self.file_path
+            print "creating a symlink \n target:##", target_path, "##"
+            target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
+            if target_file_exists>=0:
+                ##file exists,create symlink
+                print "target file exist, creating symlink"
+                yaffs_unlink(new_path)
+                output=yaffs_symlink(target_path, new_path)
+                print "yaffs symlink output=", output
+                self.file_editor_root.destroy()
+            else :
+                ##file does not exist
+                print "target file does not exist, cannot create symlink"
+        else :
+            #global current_directory_dict
+            print "saving the file"
+            print self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
+            yaffs_lseek(self.yaffs_handle, 0, 0)
+            data_to_be_written=self.file_editor_text.get("1.0", tk.END)
+            print "data to be saved", data_to_be_written
+            length_of_file=len(data_to_be_written)
+            print "length of data to be written",length_of_file 
+            output=yaffs_write(self.yaffs_handle,data_to_be_written , length_of_file)
+            print "output", output
+            yaffs_ftruncate(self.yaffs_handle, length_of_file)
+            yaffs_close(self.yaffs_handle)
+            self.yaffs_handle = yaffs_open(self.file_path,66,0666)
+        load_dir()
+        
+    def __init__(self, isLink=0):
+        global current_directory_dict
+        x=name_list_box.curselection()
+        self.id=int(x[0])
+        self.file_editor_root =tk.Toplevel()
+        self.save_button=tk.Button(self.file_editor_root, text="save", command=self.save_file)
+        self.save_button.pack(fill=tk.BOTH)
+
+        self.file_path=current_directory_dict[self.id]["path"]
+        print "file path", self.file_path
+        self.file_editor_root.title(current_directory_dict[self.id]["path"])
+        self.file_editor_text=tk.Text(self.file_editor_root)
+        self.yaffs_handle = yaffs_open(current_directory_dict[self.id]["path"],66,0666)
+        length_of_file=yaffs_lseek(self.yaffs_handle, 0, 2) ##seeks to the end of the file
+        yaffs_lseek(self.yaffs_handle, 0, 0)## returns the handle to the front of th file
+        print "length of file to be opened:", length_of_file
+        if isLink==True and False ==True : ##this alows the symlink to be edited and is no longer used. to renable it delete "and False ==True"
+            print "opening symlink"
+            self.file_contents=ctypes.create_string_buffer(1000)
+            yaffs_readlink(self.file_path,self.file_contents,1000)
+            self.isLink=True
+        else:
+            print"opening file"
+            self.file_contents=ctypes.create_string_buffer(length_of_file)
+            yaffs_read(self.yaffs_handle,self.file_contents,length_of_file)
+            print "file contents", self.file_contents.raw
+        self.file_editor_text.insert(tk.END, self.file_contents.raw)
+        self.file_editor_text.pack(fill=tk.BOTH)
+        ##self.file_editor_text.bind("<Control-s>", self.save_file)
+        ##doesn't work because it can't pass "self"
+
+def load_dir():
+    global current_directory_dict
+    print "loading a new directory*******************************************************************"
+    ##deleate current items in text box
+    name_list_box.delete(0, tk.END)
+    current_directory_dict=yaffs_ls(mount_list_text_variable.get())
+    print "new directory", current_directory_dict
+    ##copy directory into file box
+    for x in range(0,len(current_directory_dict)):
+        name_list_box.insert(x,(current_directory_dict[x]["inodes"]+"  "+ current_directory_dict[x]["type"]+"  "+ current_directory_dict[x]["size"]+"  "+ current_directory_dict[x]["path"]+"  "+current_directory_dict[x]["extra_data"]))
+    name_list_box.grid(column=0, row=1)
+    return current_directory_dict
+    
+def remount_yaffs():
+    ##this isn't working. somethihg need to be changed in the config of the simulator to release the handle of the emfile
+    print "remounting yaffs"
+    print"unmounting yaffs:", yaffs_unmount("yaffs2/")
+    print "mounting yaffs", yaffs_mount("/yaffs2/")
+    load_dir()
+    
+def load_file(link=0):
+    global open_windows_list
+    open_windows_list.append(editor(link))
+
+def load_command(self=0):
+    global current_directory_dictls
+    
+    print "you loaded a file/dir/link"
+    x=name_list_box.curselection()
+    x=int(x[0])
+    print "cursor selection", x
+    print "dict", current_directory_dict
+
+    print "file inode is:", current_directory_dict[x]["inodes"]
+    
+    
+    print "file path is:", current_directory_dict[x]["path"]
+    if current_directory_dict[x]["type"]=="dir":
+        ##open dir
+        print "open directory"
+        mount_list_text_variable.set(current_directory_dict[x]["path"])
+        print mount_list_text_variable.get()
+        print "old directory dict", current_directory_dict
+        #current_directory_dict=load_dir()
+        load_dir()
 
-def load_file(self=0):
-    print "youloaded a file"
+        print "new directory dict passed back"
+
+    elif current_directory_dict[x]["type"]=="file" :
+        ##open file
+        print "open file"
+        load_file()
+    elif current_directory_dict[x]["type"]=="link": 
+        print "loading a symlink"
+        load_file(1)
+    ##mount_list_text_variable.set(mount_list_text_variable.get()+str(list[0][0]))
+    
 def back_a_directory(self=0):
-    pass
+    x=len(mount_list_text_variable.get())
+    string=mount_list_text_variable.get()
+    slashes_id=[]
+    #print "length of path", x 
+    #print "string been sorted:",  string
+    for i in range(0, x):
+        if string[i]=='/':
+            slashes_id.append(i)
+            #print "slash found at:", i
+        
+    print slashes_id
+    ##slashes_id.sort() not needed because the list is already in acending order
+    ##print "sorted",slashes_id
+
+    string=string[0: slashes_id[len(slashes_id)-2]+1]
+    print string
+    mount_list_text_variable.set(string)
+    load_dir()
+
+
+    
     
+    
 def yaffs_ls(dname):
+    ls_dict=[]
+
     if dname[-1] != "/": dname = dname + "/"
     dc = yaffs_opendir(dname)
     if dc != 0 :
         sep = yaffs_readdir(dc)
         while bool(sep):
+            
             se = sep.contents
             fullname = dname + se.d_name
-            #print fullname, " ", se.d_ino," ",ord(se.d_type)
             st = yaffs_stat_struct()
-            result = yaffs_stat(fullname,byref(st))
+            result = yaffs_lstat(fullname,byref(st))
             perms = st.st_mode & 0777
-            isFile = True if st.st_mode & 0x8000 else False
-            isDir  = True if st.st_mode & 0x4000 else False
+            ftype = st.st_mode & yaffs_S_IFMT
+            isFile = True if ftype == yaffs_S_IFREG else False
+            isDir  = True if ftype == yaffs_S_IFDIR else False
+            isSymlink= True if ftype == yaffs_S_IFLNK else False
 
             if isFile :
-                print "File ",se.d_ino, hex(perms), st.st_size, fullname
+                ls_dict.append ({"type" :"file",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname,"extra_data":""})
+                print "file st.st_mode:", st.st_mode
+
             elif isDir :
-                print "Dir  ",se.d_ino, hex(perms), fullname
-                yaffs_ls(fullname)
-            else :
-               print "Other (",hex(st.st_mode),") ",se.d_ino, hex(perms), fullname
+                print "dir st.st_mode:", st.st_mode
 
+                ls_dict.append({"type":"dir", "inodes" :str(se.d_ino), "permissions":str( hex(perms)),"size":"0",   "path": fullname+"/", "extra_data":""})
+            elif isSymlink:
+                print "symlink st.st_mode:", st.st_mode
+                file_contents=ctypes.create_string_buffer(30)
+                yaffs_readlink(fullname,file_contents,30)
+                string=repr(file_contents.value)
+                print "len of str", len(string)
+#                string.lstrip()
+
+                print "string", string, "###"
+
+                ls_dict.append ({"type" :"link",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname, "extra_data":"> "+string})
+
+            else :
+                print "unknown st.st_mode:", st.st_mode
+                ls_dict.append({ "type":"Other", "inodes":str(se.d_ino),  "permissions":str( hex(perms)), "size":"0",   "path": fullname,"extra_data":""})
             sep = yaffs_readdir(dc)
         yaffs_closedir(dc)
-        return 0
+        return ls_dict
     else:
         print "Could not open directory"
         return -1
 
-    
 
 ##toolbar 
 toolbar_frame=tk.Frame(root_window)
-button_open=tk.Button(toolbar_frame, command=load_file, text="load")
+button_open=tk.Button(toolbar_frame, command=load_command, text="load")
 button_open.grid(column=0, row=0)
 button_back=tk.Button(toolbar_frame, command=back_a_directory, text="back")
 button_back.grid(column=1, row=0)
 toolbar_frame.grid(row=0, column=0,  columnspan=3)
-#root_window.bind("<Double-Button-1>", button_open)
+
+def delete_selected(selected_dir=0):
+    if selected_dir==0:
+        print"using current_directory_dict"
+        global current_directory_dict
+        x=name_list_box.curselection()
+        x=int(x[0])
+        print current_directory_dict[x]["type"]
+        if current_directory_dict[x]["type"]=="file":
+            path=current_directory_dict[x]["path"]
+            path =path
+            output=yaffs_unlink(path)
+            print "unlinking output:", output
+        elif current_directory_dict[x]["type"]=="dir":
+            path=current_directory_dict[x]["path"]
+            inside_dir=yaffs_ls(path)
+            print "files and folder inside dir", inside_dir
+            print "len of dir", len(inside_dir)
+            if inside_dir!=[]: ##if the dir is not empty
+                ## remove stuff in dir
+                for i in range(0,len(inside_dir)):
+                    print "calling self*****"
+                    delete_selected(inside_dir[i])
+                
+            path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file 
+            print "removing:", path
+            output=yaffs_rmdir(path)
+            print "rmdir output:", output
+    else :
+        print "using passed dir"
+        print "dir passed", selected_dir
+        current_directory_dict =selected_dir
+
+        print "after copying", current_directory_dict
+        print current_directory_dict["type"]
+        if current_directory_dict["type"]=="file":
+            path=current_directory_dict["path"]
+            path =path
+            output=yaffs_unlink(path)
+            print "unlinking output:", output
+        elif current_directory_dict["type"]=="dir":
+            path=current_directory_dict["path"]
+            inside_dir=yaffs_ls(path)
+            print "files and folder inside dir", inside_dir
+            print "len of dir", len(inside_dir)
+            if inside_dir!=[]: ##if the dir is not empty
+                ## remove stuff in dir
+                for i in range(0,len(inside_dir)):
+                    print "calling self*****"
+                    delete_selected(inside_dir[i])
+                
+            path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file 
+            print "removing:", path
+            output=yaffs_rmdir(path)
+            print "rmdir output:", output
+            
+    load_dir()
 
 
 
+class new_file():
+    path_entry_box=0
+    new_file_window=0
+    def open_the_file(self):
+        global mount_list_text_variable
+        print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
+        yaffs_handle=yaffs_open(self.path_entry_box.get(),66,0666)
+        yaffs_close(yaffs_handle)
+        self.new_file_window.destroy()
+        load_dir()
+
+    def cancel(self):
+        ##del self
+        self.new_file_window.destroy()
+    def __init__(self):
+        global mount_list_text_variable
+        self.new_file_window =tk.Toplevel(takefocus=True)
+        path_frame=tk.Frame(self.new_file_window)
+        path_label=tk.Label(path_frame, text="file path")
+        path_label.pack(side=tk.LEFT)
+        text=tk.StringVar()
+        text.set(mount_list_text_variable.get())
+        print "############################",mount_list_text_variable.get()
+        self.path_entry_box= tk.Entry(path_frame, textvariable=text)
+        self.path_entry_box.pack(side=tk.RIGHT)
+        path_frame.pack()
+        button_frame=tk.Frame(self.new_file_window)
+        create_button=tk.Button(button_frame, text="Create", command=self.open_the_file)
+        create_button.pack(side=tk.LEFT)
+        cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
+        cancel_button.pack(side=tk.RIGHT)
+        button_frame.pack()
+
+class new_folder():
+    path_entry_box=0
+    new_folder_window=0
+    def create_the_folder(self):
+        global mount_list_text_variable
+        print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
+        yaffs_mkdir(self.path_entry_box.get(),0666)
+        self.new_folder_window.destroy()
+
+        load_dir()
+
+    def cancel(self):
+        ##del self
+        self.new_folder_window.destroy()
+    def __init__(self):
+        global mount_list_text_variable
+        self.new_folder_window =tk.Toplevel(takefocus=True)
+        path_frame=tk.Frame(self.new_folder_window)
+        path_label=tk.Label(path_frame, text="directory path")
+        path_label.pack(side=tk.LEFT)
+        text=tk.StringVar()
+        text.set(mount_list_text_variable.get())
+        print "############################",mount_list_text_variable.get()
+        self.path_entry_box= tk.Entry(path_frame, textvariable=text)
+        self.path_entry_box.pack(side=tk.RIGHT)
+        path_frame.pack()
+        button_frame=tk.Frame(self.new_folder_window)
+        create_button=tk.Button(button_frame, text="Create", command=self.create_the_folder)
+        create_button.pack(side=tk.LEFT)
+        cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
+        cancel_button.pack(side=tk.RIGHT)
+        button_frame.pack()
+
+
+class new_symlink():
+    path_entry_box=0
+    target_text=0
+    new_text=0
+    new_file_window=0
+    def create_the_symlink(self):
+        global mount_list_text_variable
+        ##check the symlink's target is a file.
+        target_path=self.target_text.get()
+        new_path=self.new_text.get()
+        print "creating a symlink \n target:", target_path
+        target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
+        if target_file_exists>=0:
+            ##file exists,create symlink
+            print "target file exist, creating symlink"
+            yaffs_symlink(target_path, new_path)
+            self.new_file_window.destroy()
+        else :
+            ##file does not exist
+            print "target file does not exist, cannot create symlink"
+        load_dir()
+
+    def cancel(self):
+        ##del self
+        self.new_file_window.destroy()
+    def __init__(self):
+        global mount_list_text_variable
+        self.new_file_window =tk.Toplevel(takefocus=True)
+        target_frame=tk.Frame(self.new_file_window)
+        target_label=tk.Label(target_frame, text="target")
+        target_label.pack(side=tk.LEFT)
+        self.target_text=tk.StringVar()
+        self.target_text.set(mount_list_text_variable.get())
+        #print "############################",mount_list_text_variable.get()
+        self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
+        self.target_entry_box.pack(side=tk.RIGHT)
+        target_frame.pack()
+        
+        new_frame=tk.Frame(self.new_file_window)
+        new_label=tk.Label(new_frame, text="file path")
+        new_label.pack(side=tk.LEFT)
+        self.new_text=tk.StringVar()
+        self.new_text.set(mount_list_text_variable.get())
+        #print "############################",mount_list_text_variable.get()
+        self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
+        self.new_entry_box.pack(side=tk.RIGHT)
+        new_frame.pack()
+        
+        button_frame=tk.Frame(self.new_file_window)
+        create_button=tk.Button(button_frame, text="Create", command=self.create_the_symlink)
+        create_button.pack(side=tk.LEFT)
+        cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
+        cancel_button.pack(side=tk.RIGHT)
+        button_frame.pack()
+
+
+
+class new_hardlink():
+    path_entry_box=0
+    target_text=0
+    new_text=0
+    new_file_window=0
+    def create_the_hardlink(self):
+        global mount_list_text_variable
+        ##check the symlink's target is a file.
+        target_path=self.target_text.get()
+        new_path=self.new_text.get()
+        print "creating a hardlink \n target:", target_path
+        target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
+        if target_file_exists>=0:
+            ##file exists,create symlink
+            print "target file exist, creating hardlink"
+            yaffs_link(target_path, new_path)
+            self.new_file_window.destroy()
+        else :
+            ##file does not exist
+            print "target file does not exist, cannot create hardlink"
+        load_dir()
+
+    def cancel(self):
+        ##del self
+        self.new_file_window.destroy()
+    def __init__(self):
+        global mount_list_text_variable
+        self.new_file_window =tk.Toplevel(takefocus=True)
+        target_frame=tk.Frame(self.new_file_window)
+        target_label=tk.Label(target_frame, text="target")
+        target_label.pack(side=tk.LEFT)
+        self.target_text=tk.StringVar()
+        self.target_text.set(mount_list_text_variable.get())
+        #print "############################",mount_list_text_variable.get()
+        self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
+        self.target_entry_box.pack(side=tk.RIGHT)
+        target_frame.pack()
+        
+        new_frame=tk.Frame(self.new_file_window)
+        new_label=tk.Label(new_frame, text="file path")
+        new_label.pack(side=tk.LEFT)
+        self.new_text=tk.StringVar()
+        self.new_text.set(mount_list_text_variable.get())
+        #print "############################",mount_list_text_variable.get()
+        self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
+        self.new_entry_box.pack(side=tk.RIGHT)
+        new_frame.pack()
+        
+        button_frame=tk.Frame(self.new_file_window)
+        create_button=tk.Button(button_frame, text="Create", command=self.create_the_hardlink)
+        create_button.pack(side=tk.LEFT)
+        cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
+        cancel_button.pack(side=tk.RIGHT)
+        button_frame.pack()
+
+
 ##mount list entry box init
 mount_list_frame=tk.Frame(root_window)
 mount_list_label=tk.Label(mount_list_frame, text="mount list")
 mount_list_label.pack(side=tk.RIGHT)
-mount_list_text_variable=tk.StringVar()
 
-mount_list_text_variable.set("path")
 mount_list_entry_box= tk.Entry(mount_list_frame,textvariable=mount_list_text_variable)
 mount_list_entry_box.pack(side=tk.RIGHT)
 mount_list_frame.grid(row=1, column=0, columnspan=2)
 
 
+list_frame=tk.Frame(root_window)
+name_list_box=tk.Listbox(list_frame,exportselection=0, height=30, width=80)
+load_dir()
+list_frame.grid(sticky=tk.W+tk.E+tk.N+tk.S)
+
+name_list_box.bind("<Double-Button-1>", load_command)
+
+browser_menu_bar=tk.Menu(root_window)
+browser_file_menu=tk.Menu(browser_menu_bar)
+
+browser_file_menu.add_command(label="Reload", command=load_dir)
+browser_file_menu.add_command(label="Remount yaffs", command=remount_yaffs)
+
+#browser_file_menu.add_command(label="Open")
+#browser_file_menu.add_command(label="Save")
+browser_menu_bar.add_cascade(label="File", menu=browser_file_menu)
+root_window.config(menu=browser_menu_bar)
+
+
+browser_edit_menu=tk.Menu(browser_menu_bar)
+
+browser_edit_menu.add_command(label="New File", command=new_file)
+browser_edit_menu.add_command(label="New Folder", command=new_folder)
+browser_edit_menu.add_command(label="New Symlink", command=new_symlink)
+browser_edit_menu.add_command(label="New Hardlink", command=new_hardlink)
+
+
+browser_edit_menu.add_command(label="delete selected", command=delete_selected)
+browser_menu_bar.add_cascade(label="Edit", menu=browser_edit_menu)
+
+
 
 
-list_frame=tk.Frame(root_window)
 
-###header part of the browser
-#
-#name_button=tk.Button(list_frame, text="name")
-#name_button.grid(row=0, column=0)
-#
-#type_button=tk.Button(list_frame, text="file type")
-#type_button.grid(row=0, column=1)
-#
-#size_button=tk.Button(list_frame, text="size")
-#size_button.grid(row=0, column=2)
-
-
-
-
-
-##list part of the browser
-#
-#name_list_box=tk.Listbox(list_frame,exportselection=0, height=20, width=30)
-#
-#
-#
-#displayed_list=[]
-#for x in range(0,list.length_of_list ):
-#
-#    
-#    type_spaces=" "
-#    type_spaces=type_spaces* (10- len(list.type[x])) 
-#    y=(list.name[x]+name_spaces+list.type[x]+list.size[x])
-#    print (list.name[x]+name_spaces+list.type[x]+list.size[x])
-#    name_list_box.insert(x,y)
-#name_list_box.grid(column=0, row=1)
-#
-#
-#list_frame.grid()
-##browser_frame.grid(row=1, column=0,columnspan=3 )
-#name_list_box.bind("<Double-Button-1>", load_file)
-
-
-yaffs_ls("/yaffs2")
 
 root_window.mainloop()
+
+print"unmounting yaffs:", yaffs_unmount("yaffs2/")
+
+