################################################################################ # Directory Pruner 3.pyw ################################################################################ package = __import__('Directory Pruner 3') # Get the source package of program. package.main() # Call the main entry point to the Directory Pruner application. ################################################################################ # __init__.py ################################################################################ #! /usr/bin/env python """Module providing GUI capability to prune any directory. The code presented in this module is for the purposes of: (1) ascertaining the space taken up by a directory, its files, its sub-directories, and its sub-files; (2) allowing for the removal of the sub-files, sub-directories, files, and directory found in the first purpose; (3) giving the user a GUI to accomplish said purposes in a convenient way that is easily accessible.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 418 $' ################################################################################ import base64 import os import time import tkinter import zlib from . import view from . import widgets ################################################################################ ICON = b'eJxjYGAEQgEBBiApwZDBzMAgxsDAoAHEQCEGBQaIOAwkQDE2UOSkiUM\ Gp/rlyd740Ugzf8/uXROxAaA4VvVAqcfYAFCcoHqge4hR/+btWwgCqoez8aj//fs\ XWiAARfCrhyCg+XA2HvV/YACoHs4mRj0ywKWe1PD//p+B4QMOmqGeMAYAAY/2nw==' ################################################################################ def main(): "Create an application containing a single TrimDir widget." tkinter.NoDefaultRoot() root = create_application_root() attach_window_icon(root, ICON) view = setup_class_instance(root) main_loop(root) def create_application_root(): "Create and configure the main application window." root = widgets.Tk() root.minsize(430, 215) root.title('Directory Pruner') root.option_add('*tearOff', tkinter.FALSE) return root def attach_window_icon(root, icon): "Generate and use the icon in the window's corner." with open('tree.ico', 'wb') as file: file.write(zlib.decompress(base64.b64decode(ICON))) root.iconbitmap('tree.ico') os.remove('tree.ico') def setup_class_instance(root): "Build TrimDir instance that expects resizing." instance = view.TrimDir(root) instance.grid(row=0, column=0, sticky=tkinter.NSEW) root.grid_rowconfigure(0, weight=1) root.grid_columnconfigure(0, weight=1) return instance def main_loop(root): "Process all GUI events according to tkinter's settings." target = time.clock() while True: try: root.update() except tkinter.TclError: break target += tkinter._tkinter.getbusywaitinterval() / 1000 time.sleep(max(target - time.clock(), 0)) ################################################################################ # Directory Pruner 3/animator.py ################################################################################ #! /usr/bin/env python """Module for animating and displaying error messages. The indicate_error function is the only available function in this module. Calling it with the appropriate arguments should display an error for you.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import _tkinter import math ################################################################################ def indicate_error(root, alternative, callback, force=False): "Prepare to shake the application's root window." if force: _tkinter.setbusywaitinterval(20) elif _tkinter.getbusywaitinterval() != 20: # Show error message if not running at 50 FPS. alternative.show() return callback() root.after_idle(_shake, root, callback) def _shake(root, callback, frame=0): "Animate each step of shaking the root window." frame += 1 # Get the window's location and update the X position. x, y = map(int, root.geometry().split('+')[1:]) x += round(math.sin(math.pi * frame / 2.5) * \ math.sin(math.pi * frame / 50) * 5) root.geometry('+{}+{}'.format(x, y)) if frame < 50: # Schedule next step in the animation. root.after(20, _shake, root, callback, frame) else: # Enable operations after one second. callback() ################################################################################ # Directory Pruner 3/bytesize.py ################################################################################ #! /usr/bin/env python """Module for converting byte to strings and vice versa. Various function are provided for changing byte sizes into English words. If the conversion is exact, the string may also be converted into a number.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import math ################################################################################ # Provide a way of converting byte sizes into strings. def convert(number): "Convert bytes into human-readable representation." if not number: return '0 Bytes' if not 0 < number < 1 << 110: raise ValueError('Number out of range!') ordered = reversed(tuple(format_bytes(partition_number(number, 1 << 10)))) cleaned = ', '.join(item for item in ordered if item[0] != '0') return cleaned def partition_number(number, base): "Continually divide number by base until zero." div, mod = divmod(number, base) yield mod while div: div, mod = divmod(div, base) yield mod def format_bytes(parts): "Format partitioned bytes into human-readable strings." for power, number in enumerate(parts): yield '{} {}'.format(number, format_suffix(power, number)) def format_suffix(power, number): "Compute the suffix for a certain power of bytes." return (PREFIX[power] + 'byte').capitalize() + ('s' if number != 1 else '') PREFIX = ' kilo mega giga tera peta exa zetta yotta bronto geop'.split(' ') ################################################################################ # Define additional operations for the TreeviewNode class. def parse(string): "Convert human-readable string back into bytes." total = 0 for part in string.split(', '): number, unit = part.split(' ') s = number != '1' and 's' or '' for power, prefix in enumerate(PREFIX): if unit == (prefix + 'byte' + s).capitalize(): break else: raise ValueError('{!r} not found!'.format(unit)) total += int(number) * 1 << 10 * power return total def abbr(number): "Convert bytes into abbreviated representation." # Check value of number before processing. if not number: return '0 Bytes' if not 0 < number < (1 << 100) * 1000: raise ValueError('Number out of range!') # Calculate range of number and correct value. level = int(math.log(number) / math.log(1 << 10)) value = number / (1 << 10 * level) # Move to the next level if number is high enough. if value < 1000: precision = 4 else: precision = 3 level += 1 value /= 1 << 10 # Format the number before returning to caller. if level: result = '{:.{}}'.format(value, precision) return '{} {}'.format(result, format_suffix(level, result == '1.0')) return '{} {}'.format(int(value), format_suffix(level, value)) ################################################################################ # Directory Pruner 3/discover.py ################################################################################ #! /usr/bin/env python """Module for mapping out directory sizes. Creating a SizeTree instance will automatically discover the directory size. The directory's structure will be accessible through the tree-like structure.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import os ################################################################################ class SizeTree: "Create a tree structure outlining a directory's size." __slots__ = 'name path children file_size total_size total_nodes'.split() def __init__(self, path, callback=None): "Initialize the SizeTree object and search the path while updating." # Validate the search's current progress. if callback is not None: callback() head, tail = os.path.split(path) # Create attributes for this instance. self.name = tail or head self.path = path self.children = [] self.file_size = 0 self.total_size = 0 self.total_nodes = 0 # Try searching this directory. try: dir_list = os.listdir(path) except OSError: pass else: # Examine each object in this directory. for name in dir_list: path_name = os.path.join(path, name) if os.path.isdir(path_name): # Create child nodes for subdirectories. size_tree = SizeTree(path_name, callback) self.children.append(size_tree) self.total_size += size_tree.total_size self.total_nodes += size_tree.total_nodes + 1 elif os.path.isfile(path_name): # Try getting the size of files. try: self.file_size += os.path.getsize(path_name) except OSError: pass # Add in the total file size to the total size. self.total_size += self.file_size def pop_child(self, name): "Return a named child or None if not found." for index, child in enumerate(self.children): if child.name == name: return self.children.pop(index) ######################################################################## def __str__(self): "Return a representation of the tree formed by this object." lines = [self.path] self.__walk(lines, self.children, '') return '\n'.join(lines) @classmethod def __walk(cls, lines, children, prefix): "Generate lines based on children and keep track of prefix." dir_prefix, walk_prefix = prefix + '+---', prefix + '| ' for pos, neg, child in cls.__enumerate(children): if neg == -1: dir_prefix, walk_prefix = prefix + '\\---', prefix + ' ' lines.append(dir_prefix + child.name) cls.__walk(lines, child.children, walk_prefix) @staticmethod def __enumerate(sequence): "Generate positive and negative indices for sequence." length = len(sequence) for count, value in enumerate(sequence): yield count, count - length, value ################################################################################ # Directory Pruner 3/remove.py ################################################################################ #! /usr/bin/env python """Module for removing files and directories. These functions help in removing directories and files by various methods. The core of the context menu is implemented by the provided capabilities.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import os ################################################################################ def directory_files(path, remove_directory=False, remove_path=False): "Remove directory at path, respecting the flags." for root, dirs, files in os.walk(path, False): # Ignore path if remove_path is false. if remove_path or root != path: for name in files: filename = os.path.join(root, name) try: os.remove(filename) except OSError: pass # Ignore directory if remove_directory is false. if remove_directory: try: os.rmdir(root) except OSError: pass def files(path): "Remove files in path and get remaining space." total_size = 0 # Find all files in directory of path. for name in os.listdir(path): pathname = os.path.join(path, name) if os.path.isfile(pathname): # Try to remove any file that may have been found. try: os.remove(pathname) except OSError: # If there was an error, try to get the filesize. try: total_size += os.path.getsize(pathname) except OSError: pass # Return best guess of space still occupied. return total_size def empty_directories(path, remove_root=False, recursive=True): "Remove all empty directories while respecting the flags." if recursive: for name in os.listdir(path): try: empty_directories(os.path.join(path, name), True) except OSError: pass if remove_root: os.rmdir(path) def empty_files(path, recursive=True): "Remove all files that are empty of any contents." for root, dirs, files in os.walk(path): if not recursive: del dirs[:] for name in files: filename = os.path.join(root, name) try: if not os.path.getsize(filename): os.remove(filename) except OSError: pass ################################################################################ # Directory Pruner 3/runmethod.py ################################################################################ #! /usr/bin/env python """Module executing same method on tuple items. The Apply class can store items and run the same method on all objects. Results are returned as a tuple, and exeception are raised when needed.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ class Apply(tuple): "Create a container that can run a method from its contents." def __getattr__(self, name): "Get a virtual method to map and apply to the contents." return self.__Method(self, name) ######################################################################## class __Method: "Provide a virtual method that can be called on the array." def __init__(self, array, name): "Initialize the method with array and method name." self.__array = array self.__name = name def __call__(self, *args, **kwargs): "Execute method on contents with provided arguments." name, error, buffer = self.__name, False, [] for item in self.__array: attr = getattr(item, name) try: data = attr(*args, **kwargs) except Exception as problem: error = problem else: if not error: buffer.append(data) if error: raise error return tuple(buffer) ################################################################################ # Directory Pruner 3/scheduler.py ################################################################################ #! /usr/bin/env python """Module for scheduling execution on single thread. This is the core of the GUI's ability to run in a multi-threaded environment. Calling run on a class instance ensures execution on the creating thread.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import _thread import functools import queue import warnings ################################################################################ class Affinity: "Predecessor to AffinityLoop that might not return results." __slots__ = '__action', '__thread' def __init__(self): "Initialize Affinity with job queue and thread identity." self.__action = queue.Queue() self.__thread = _thread.get_ident() def run(self, func, *args, **keywords): "Try to run function with arguments on the creating thread." self.__action.put_nowait(functools.partial(func, *args, **keywords)) if _thread.get_ident() == self.__thread: problem = False while not self.__action.empty(): delegate = self.__action.get_nowait() try: data = delegate() except Exception as error: problem = error if problem: raise problem return data warnings.warn('Affinity did not return!') ################################################################################ class AffinityLoop: "Restricts code execution to thread that instance was created on." __slots__ = '__action', '__thread' def __init__(self): "Initialize AffinityLoop with job queue and thread identity." self.__action = queue.Queue() self.__thread = _thread.get_ident() def run(self, func, *args, **keywords): "Run function on creating thread and return result." if _thread.get_ident() == self.__thread: self.__run_jobs() return func(*args, **keywords) else: job = self.__Job(func, args, keywords) self.__action.put_nowait(job) return job.result def __run_jobs(self): "Run all pending jobs currently in the job queue." while not self.__action.empty(): job = self.__action.get_nowait() job.execute() ######################################################################## class __Job: "Store information to run a job at a later time." __slots__ = ('__func', '__args', '__keywords', '__error', '__mutex', '__value') def __init__(self, func, args, keywords): "Initialize the job's info and ready for execution." self.__func = func self.__args = args self.__keywords = keywords self.__error = False self.__mutex = _thread.allocate_lock() self.__mutex.acquire() def execute(self): "Run the job, store any error, and return to sender." try: self.__value = self.__func(*self.__args, **self.__keywords) except Exception as error: self.__error = True self.__value = error self.__mutex.release() @property def result(self): "Return execution result or raise an error." self.__mutex.acquire() if self.__error: raise self.__value return self.__value ################################################################################ # Directory Pruner 3/threadlog.py ################################################################################ #! /usr/bin/env python """Module for starting threads that have their errors logged. The start_thread function is the only procedure for use in this module. When threads are started, errors will be automatically written to a file.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import _thread import logging import os import sys import traceback ################################################################################ def start_thread(function, *args, **kwargs): "Start a new thread and wrap with error catching." _thread.start_new_thread(_bootstrap, (function, args, kwargs)) def _bootstrap(function, args, kwargs): "Run function with arguments and log any errors." try: function(*args, **kwargs) except Exception: basename = os.path.basename(sys.argv[0]) filename = os.path.splitext(basename)[0] + '.log' logging.basicConfig(filename=filename) logging.error(traceback.format_exc()) ################################################################################ # Directory Pruner 3/treeview.py ################################################################################ #! /usr/bin/env python """Module for manipulating nodes in a treeview. The Node class provides a high-level interface to work with treeview nodes. When creating a Node instance, a Treeview instance must should be wrapped.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import sys import tkinter from .bytesize import convert, parse, abbr from .view import TrimDir ################################################################################ class Node: "Interface to allow easier interaction with Treeview instance." @classmethod def current(cls, tree): "Take a tree view and return its currently selected node." node = tree.selection() return cls(tree, node[0] if node else node) ######################################################################## # Standard Treeview Operations __slots__ = '__tree', '__node' def __init__(self, tree, node=''): "Initialize the Node object (root if node not given)." self.__tree = tree self.__node = node def __str__(self): "Return a string representation of this node." return '''\ NODE: {!r} Name: {} Total Size: {} File Size: {} Path {}\ '''.format(self.__node, self.name, self.total_size, self.file_size, self.path) def insert(self, position, text): "Insert a new node with text at position in current node." node = self.__tree.insert(self.__node, position, text=text) # PATCH: Store extra data about node. if TrimDir.SIZE: self.__tree.nodes[node] = dict() return Node(self.__tree, node) def append(self, text): "Add a new node with text to the end of this node." return self.insert(tkinter.END, text) def move(self, parent, index): "Insert this node under parent at index." self.__tree.move(self.__node, parent, index) def reattach(self, parent='', index=tkinter.END): "Attach node to parent at index (defaults to end of root)." self.move(parent, index) def detach(self): "Unlink this node from its parent but do not delete." self.__tree.detach(self.__node) def delete(self, get_parent=False, from_tree=True): # Internal Last Flag "Delete this node (optionally, return parent)." if self.__tree.exists(self.__node): parent = self.parent if get_parent else None # PATCH: Remove extra data about node. if TrimDir.SIZE: for child in self.children: child.delete(from_tree=False) del self.__tree.nodes[self.__node] if from_tree: self.__tree.delete(self.__node) #===================================== return parent if get_parent: raise ValueError('Cannot return parent!') ######################################################################## # Standard Treeview Properties @property def root(self): "Return if this is the root node." return self.__node == '' @property def parent(self): "Return the parent of this node." return Node(self.__tree, self.__tree.parent(self.__node)) @property def level(self): "Return number of levels this node is under root." count, node = 0, self while not node.root: node = node.parent count += 1 return count @property def position(self): "Return the position of this node in its parent." return self.__tree.index(self.__node) @property def expanded(self): "Return whether or not the node is current open." value = self.__tree.item(self.__node, 'open') return bool(value) and value.string == 'true' @property def children(self): "Yield back each child of this node." for child in self.__tree.get_children(self.__node): yield Node(self.__tree, child) ######################################################################## # Custom Treeview Properties # (specific for application) @property def name(self): "Return the name of this node (tree column)." return self.__tree.item(self.__node, 'text') # PATCH: Custom Size if TrimDir.SIZE: # Shortened Byte Size def __get_total_size(self): return self.__tree.nodes[self.__node][TrimDir.CLMS[0]] def __set_total_size(self, value): self.__tree.nodes[self.__node][TrimDir.CLMS[0]] = value self.__tree.set(self.__node, TrimDir.CLMS[0], abbr(value)) def __get_file_size(self): return self.__tree.nodes[self.__node][TrimDir.CLMS[1]] def __set_file_size(self, value): self.__tree.nodes[self.__node][TrimDir.CLMS[1]] = value self.__tree.set(self.__node, TrimDir.CLMS[1], abbr(value)) else: # Complete Byte Size def __get_total_size(self): return parse(self.__tree.set(self.__node, TrimDir.CLMS[0])) def __set_total_size(self, value): self.__tree.set(self.__node, TrimDir.CLMS[0], convert(value)) def __get_file_size(self): return parse(self.__tree.set(self.__node, TrimDir.CLMS[1])) def __set_file_size(self, value): self.__tree.set(self.__node, TrimDir.CLMS[1], convert(value)) #========================================================================= def __get_path(self): return self.__tree.set(self.__node, TrimDir.CLMS[2]) def __set_path(self, value): self.__tree.set(self.__node, TrimDir.CLMS[2], value) total_size = property(__get_total_size, __set_total_size, doc="Total size of this node (first column)") file_size = property(__get_file_size, __set_file_size, doc="File size of this node (second column)") path = property(__get_path, __set_path, doc="Path of this node (third column)") ######################################################################## # Custom Treeview Sort Order # (specific for application) def sort_name(self): "If the node is open, sort its children by name." self.__sort(lambda child: child.name) def sort_total_size(self): "If the node is open, sort its children by total size." self.__sort(lambda child: child.total_size) def sort_file_size(self): "If the node is open, sort its children by file size." self.__sort(lambda child: child.file_size) def sort_path(self): "If the node is open, sort its children by path." self.__sort(lambda child: child.path) def __sort(self, key): "Sort an expanded node's children by the given key." if self.expanded: nodes = list(self.children) order = sorted(nodes, key=key) if order == nodes: order = reversed(order) for child in order: self.__tree.move(child.__node, self.__node, tkinter.END) ################################################################################ # Directory Pruner 3/view.py ################################################################################ #! /usr/bin/env python """Module containing main GUI class of application. The overly large TrimDir class is the main interface to this program. To use Directory Pruner in other programs, create and use TrimDir objects.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import os import tkinter from . import animator from . import discover from . import remove from . import runmethod from . import threadlog from . import widgets ################################################################################ class TrimDir(widgets.Frame): "Widget for examining size of directory with optional deletion." WARN = True # Should warnings be made for permanent operations? MENU = True # Should the (destructive) context menu be enabled? SIZE = True # Should directory sizes be patched for less words? # Give names to columns. CLMS = 'total_size', 'file_size', 'path' TREE = '#0' ######################################################################## # Initialize the TrimDir object. __slots__ = ('__tk', '__label', '__path', '__run', '__cancel', '__progress', '__tree', '__scroll_1', '__scroll_2', '__grip', '__menu', '__dialog', '__error', '__warn') def __init__(self, master=None, **kw): "Initialize the TrimDir instance and configure for operation." super().__init__(master, **kw) # Initialize and configure this frame widget. self.capture_root() self.create_widgets() self.create_supports() self.create_bindings() self.configure_grid() self.configure_tree() self.configure_menu() # Set focus to path entry. self.__path.focus_set() def capture_root(self): "Capture the root (Tk instance) of this application." widget = self.master while not isinstance(widget, widgets.Tk): widget = widget.master self.__tk = widget def create_widgets(self): "Create all the widgets that will be placed in this frame." self.__label = widgets.Button(self, text='Path:', command=self.choose) self.__path = widgets.Entry(self, cursor='xterm') self.__run = widgets.Button(self, text='Search', command=self.search) self.__cancel = widgets.Button(self, text='Cancel', command=self.stop_search) self.__progress = widgets.Progressbar(self, orient=tkinter.HORIZONTAL) self.__tree = widgets.Treeview(self, columns=self.CLMS, selectmode=tkinter.BROWSE) self.__scroll_1 = widgets.Scrollbar(self, orient=tkinter.VERTICAL, command=self.__tree.yview) self.__scroll_2 = widgets.Scrollbar(self, orient=tkinter.HORIZONTAL, command=self.__tree.xview) self.__grip = widgets.Sizegrip(self) def create_supports(self): "Create all GUI elements not placed directly in this frame." self.__menu = widgets.Menu(self) self.create_directory_browser() self.create_error_message() self.create_warning_message() def create_directory_browser(self): "Find root of file system and create directory browser." head, tail = os.getcwd(), True while tail: head, tail = os.path.split(head) self.__dialog = widgets.Directory(self, initialdir=head) def create_error_message(self): "Create error message when trying to search bad path." options = {'title': 'Path Error', 'icon': tkinter.messagebox.ERROR, 'type': tkinter.messagebox.OK, 'message': 'Directory does not exist.'} self.__error = widgets.Message(self, **options) def create_warning_message(self): "Create warning message for permanent operations." options = {'title': 'Important Warning', 'icon': tkinter.messagebox.QUESTION, 'type': tkinter.messagebox.YESNO, 'message': '''\ You cannot undo these operations. Are you sure you want to do this?'''} self.__warn = widgets.Message(self, **options) def create_bindings(self): "Bind the widgets to any events they will need to handle." self.__label.bind('', self.choose) self.__path.bind('', self.select_all) self.__path.bind('', lambda event: 'break') self.__path.bind('', self.search) self.__run.bind('', self.search) self.__cancel.bind('', self.stop_search) self.bind_right_click(self.__tree, self.open_menu) @staticmethod def select_all(event): "Select all of the contents in this Entry widget." event.widget.selection_range(0, tkinter.END) return 'break' def bind_right_click(self, widget, action): "Bind action to widget while considering Apple computers." if self.__tk.tk.call('tk', 'windowingsystem') == 'aqua': widget.bind('<2>', action) widget.bind('', action) else: widget.bind('<3>', action) def configure_grid(self): "Place all widgets on the grid in their respective locations." self.__label.grid(row=0, column=0) self.__path.grid(row=0, column=1, sticky=tkinter.EW) self.__run.grid(row=0, column=2, columnspan=2) self.__run.grid_remove() self.__cancel.grid(row=0, column=2, columnspan=2) self.__cancel.grid_remove() self.__run.grid() self.__progress.grid(row=1, column=0, columnspan=4, sticky=tkinter.EW) self.__tree.grid(row=2, column=0, columnspan=3, sticky=tkinter.NSEW) self.__scroll_1.grid(row=2, column=3, sticky=tkinter.NS) self.__scroll_2.grid(row=3, column=0, columnspan=3, sticky=tkinter.EW) self.__grip.grid(row=3, column=3, sticky=tkinter.SE) # Configure the grid to automatically resize internal widgets. self.grid_rowconfigure(2, weight=1) self.grid_columnconfigure(1, weight=1) def configure_tree(self): "Configure the Treeview widget." # Setup the headings. self.__tree.heading(self.TREE, text=' Name', anchor=tkinter.W, command=self.sort_name) self.__tree.heading(self.CLMS[0], text=' Total Size', anchor=tkinter.W, command=self.sort_total_size) self.__tree.heading(self.CLMS[1], text=' File Size', anchor=tkinter.W, command=self.sort_file_size) self.__tree.heading(self.CLMS[2], text=' Path', anchor=tkinter.W, command=self.sort_path) # Setup the columns. self.__tree.column(self.TREE, minwidth=100, width=200) self.__tree.column(self.CLMS[0], minwidth=100, width=200) self.__tree.column(self.CLMS[1], minwidth=100, width=200) self.__tree.column(self.CLMS[2], minwidth=100, width=200) # Connect the Scrollbars. self.__tree.configure(yscrollcommand=self.__scroll_1.set) self.__tree.configure(xscrollcommand=self.__scroll_2.set) # PATCH: Provide data store. if TrimDir.SIZE: self.__tree.nodes = dict() def configure_menu(self): "Configure the (context) Menu widget." # Shortcut for narrowing the search. self.__menu.add_command(label='Search Directory', command=self.search_dir) self.__menu.add_separator() # Operations committed on directory. self.__menu.add_command(label='Remove Directory', command=self.rm_dir) self.__menu.add_command(label='Remove Files', command=self.rm_files) self.__menu.add_separator() # Operations that recurse on sub-directories. self.__menu.add_command(label='Remove Sub-directories', command=self.rm_subdirs) self.__menu.add_command(label='Remove Sub-files', command=self.rm_subfiles) self.__menu.add_separator() # Operations that remove empty directories and files. self.__menu.add_command(label='Remove Empty Directories', command=self.rm_empty_dirs) self.__menu.add_command(label='Remove Empty Files', command=self.rm_empty_files) # Only add "Open Directory" command on Windows. if hasattr(os, 'startfile'): self.__menu.add_separator() self.__menu.add_command(label='Open Directory', command=self.open_dir) ######################################################################## # This property is used to control access to operations. def __get_operations_enabled(self): "Return if run button is in normal state." return self.__run['state'].string == tkinter.NORMAL def __set_operations_enabled(self, value): "Enable or disable run button's state according to value." self.__run['state'] = tkinter.NORMAL if value else tkinter.DISABLED operations_enabled = property(__get_operations_enabled, __set_operations_enabled, doc="Flag controlling certain operations") ######################################################################## # Handle path browsing and searching actions. def choose(self, event=None): "Show directory browser and set path as needed." path = self.__dialog.show() if path: # Entry is cleared before absolute path is added. self.__path.delete(0, tkinter.END) self.__path.insert(0, os.path.abspath(path)) def search(self, event=None): "Start search thread while GUI automatically updates." threadlog.start_thread(self.search_thread) def search_thread(self): "Search the path and display the size of the directory." if self.operations_enabled: self.operations_enabled = False # Get absolute path and check existence. path = os.path.abspath(self.__path.get()) if os.path.isdir(path): # Enable operations after finishing search. self.__search(path) self.operations_enabled = True else: animator.indicate_error(self.__tk, self.__error, self.enable_operations) def __search(self, path): "Execute the search procedure and display in Treeview." self.__run.grid_remove() self.__cancel.grid() children = self.start_search() try: tree = discover.SizeTree(path, self.validate_search) except StopIteration: self.handle_stop_search(children) else: self.finish_search(children, tree) self.__cancel.grid_remove() self.__run.grid() ######################################################################## # Execute various phases of a search. def start_search(self): "Edit the GUI in preparation for executing a search." self.__stop_search = False children = runmethod.Apply(treeview.Node(self.__tree).children) children.detach() self.__progress.configure(mode='indeterminate', maximum=100) self.__progress.start() return children def validate_search(self): "Check that the current search action is valid." if self.__stop_search: self.__stop_search = False raise StopIteration('Search has been canceled!') def stop_search(self, event=None): "Cancel a search by setting its stop flag." self.__stop_search = True def handle_stop_search(self, children): "Reset the Treeview and Progressbar on premature termination." children.reattach() self.__progress.stop() self.__progress['mode'] = 'determinate' def finish_search(self, children, tree): "Delete old children, update Progressbar, and update Treeview." children.delete() self.__progress.stop() self.__progress.configure(mode='determinate', maximum=tree.total_nodes+1) node = treeview.Node(self.__tree).append(tree.name) try: self.build_tree(node, tree) except StopIteration: pass ######################################################################## # Handle Treeview column sorting events initiated by user. def sort_name(self): "Sort children of selected node by name." treeview.Node.current(self.__tree).sort_name() def sort_total_size(self): "Sort children of selected node by total size." treeview.Node.current(self.__tree).sort_total_size() def sort_file_size(self): "Sort children of selected node by file size." treeview.Node.current(self.__tree).sort_file_size() def sort_path(self): "Sort children of selected node by path." treeview.Node.current(self.__tree).sort_path() ######################################################################## # Handle right-click events on the Treeview widget. def open_menu(self, event): "Select Treeview row and show context menu if allowed." item = event.widget.identify_row(event.y) if item: event.widget.selection_set(item) if self.menu_allowed: self.__menu.post(event.x_root, event.y_root) @property def menu_allowed(self): "Check if menu is enabled along with operations." return self.MENU and self.operations_enabled def search_dir(self): "Search the path of the currently selected row." path = treeview.Node.current(self.__tree).path self.__path.delete(0, tkinter.END) self.__path.insert(0, path) self.search() def rm_dir(self): "Remove the currently selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_directory) def rm_files(self): "Remove the files in the currently selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_files) def rm_subdirs(self): "Remove the sub-directories of the currently selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_subdirectories) def rm_subfiles(self): "Remove the sub-files of the currently selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_subfiles) def rm_empty_dirs(self): "Recursively remove empty directories from selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_empty_dirs) def rm_empty_files(self): "Recursively remove empty files from selected directory." if self.commit_permanent_operation: threadlog.start_thread(self.do_remove_empty_files) @property def commit_permanent_operation(self): "Check if warning should be issued before committing operation." return not self.WARN or self.__warn.show() == tkinter.messagebox.YES def open_dir(self): "Open up the current directory (only available on Windows)." os.startfile(treeview.Node.current(self.__tree).path) ######################################################################## # Execute actions requested by context menu. def do_remove_directory(self): "Remove a directory and all of its sub-directories." self.begin_rm() # Get the current Treeview node and delete it. node = treeview.Node.current(self.__tree) directory_size, path = node.total_size, node.path position, parent = node.position, node.delete(True) # Delete the entire directory at path. remove.directory_files(path, True, True) if os.path.isdir(path): # Add the directory back to the Treeview. tree = discover.SizeTree(path) self.begin_rm_update(tree.total_nodes + 1) # Rebuild the Treeview under the parent. node = parent.insert(position, tree.name) self.build_tree(node, tree) # New directory size. total_size = tree.total_size else: self.begin_rm_update() # New directory size. total_size = 0 # If the size has changed, update parent nodes. if directory_size != total_size: diff = total_size - directory_size self.update_parents(parent, diff) self.end_rm() def do_remove_files(self): "Remove all of the files in the selected directory." # Delete files in the directory and get its new size. node = treeview.Node.current(self.__tree) total_size = remove.files(node.path) # Update current and parent nodes if the size changed. if node.file_size != total_size: diff = total_size - node.file_size node.file_size = total_size node.total_size += diff self.update_parents(node.parent, diff) def do_remove_subdirectories(self): "Remove all subdirectories in the directory." self.begin_rm() # Remove all the children nodes in Viewtree. node = treeview.Node.current(self.__tree) for child in node.children: child.delete() # Delete all of the subdirectories and their files. remove.directory_files(node.path, True) # Find out what subdirectories could not be deteled. tree = discover.SizeTree(node.path) self.begin_rm_update(tree.total_nodes) if tree.total_nodes: # Rebuild the Viewtree as needed. self.build_tree(node, tree, False) # Fix node and prepare to update parents. diff = node.total_size - tree.total_size node.total_size = tree.total_size else: # Fix node and prepare to update parents. diff = node.file_size - node.total_size node.total_size = node.file_size # Update parents with new size. self.update_parents(node.parent, diff) self.end_rm() def do_remove_subfiles(self): "Remove all subfiles while keeping subdirectories in place." self.begin_rm() node = treeview.Node.current(self.__tree) remove.directory_files(node.path) self.synchronize_tree(node) def do_remove_empty_dirs(self): "Remove all empty directories from selected directory." self.begin_rm() node = treeview.Node.current(self.__tree) remove.empty_directories(node.path) self.synchronize_tree(node) def do_remove_empty_files(self): "Remove all empty files from selected directory." self.begin_rm() # Remove empty files from the current path. node = treeview.Node.current(self.__tree) remove.empty_files(node.path) # Return the Progressbar back to normal. self.begin_rm_update() self.end_rm() ######################################################################## # Help update Progressbar in removal process. def begin_rm(self): "Start a long-running removal operation." self.operations_enabled = False self.__progress.configure(mode='indeterminate', maximum=100) self.__progress.start() def begin_rm_update(self, nodes=0): "Move to determinate mode of updating the Viewtree." self.__progress.stop() self.__progress.configure(mode='determinate', maximum=nodes) def end_rm(self): "Finish removal process by enabling operations." self.operations_enabled = True enable_operations = end_rm # Create alias for command. ######################################################################## # Update the Viewtree nodes after creating a SizeTree object. def synchronize_tree(self, node): "Find the current directory state and update the tree." # Build a new SizeTree to find the result. tree = discover.SizeTree(node.path) self.begin_rm_update(tree.total_nodes) # Record the difference and patch the Viewtree. diff = tree.total_size - node.total_size self.patch_tree(node, tree) # Fix all parent nodes with the correct size. self.update_parents(node.parent, diff) self.end_rm() def build_tree(self, node, tree, update_node=True): "Build the Treeview while updating the Progressbar." self.validate_search() if update_node: self.sync_nodes(node, tree) self.add_children(node, tree) def sync_nodes(self, node, tree): "Update attributes on node and refresh GUI." # Copy the information on the node. node.total_size = tree.total_size node.file_size = tree.file_size node.path = tree.path # Update the Progressbar and GUI. self.__progress.step() ################################################################################ # Directory Pruner 3/widgets.py ################################################################################ #! /usr/bin/env python """Module for thread-safe GUI widget library. The _ThreadSafe base class is provides a foundation for the other widgets. Support for more widgets can be easily added by adding more definitions.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell ' __date__ = '21 February 2011' __version__ = '$Revision: 1 $' ################################################################################ import operator import tkinter.filedialog import tkinter.messagebox import tkinter.ttk from . import scheduler ################################################################################ class _ThreadSafe: "Create a thread-safe GUI class for safe cross-threaded calls." ROOT = tkinter.Tk def __init__(self, master=None, *args, **keywords): "Initialize a thread-safe wrapper around a GUI base class." if master is None: if self.BASE is not self.ROOT: raise ValueError('Widget must have a master!') # Use Affinity() if it does not break. self.__job = scheduler.AffinityLoop() self.__schedule(self.__initialize, *args, **keywords) else: self.master = master self.__job = master.__job self.__schedule(self.__initialize, master, *args, **keywords) def __initialize(self, *args, **keywords): "Delegate instance creation to later time if necessary." self.__obj = self.BASE(*args, **keywords) ######################################################################## # Provide a framework for delaying method execution when needed. def __schedule(self, *args, **keywords): "Schedule execution of a method till later if necessary." return self.__job.run(self.__run, *args, **keywords) @classmethod def __run(cls, func, *args, **keywords): "Execute the function after converting the arguments." args = tuple(cls.unwrap(i) for i in args) keywords = dict((k, cls.unwrap(v)) for k, v in keywords.items()) return func(*args, **keywords) @staticmethod def unwrap(obj): "Unpack inner objects wrapped by _ThreadSafe instances." return obj.__obj if isinstance(obj, _ThreadSafe) else obj ######################################################################## # Allow access to and manipulation of wrapped instance's settings. def __getitem__(self, key): "Get a configuration option from the underlying object." return self.__schedule(operator.getitem, self, key) def __setitem__(self, key, value): "Set a configuration option on the underlying object." return self.__schedule(operator.setitem, self, key, value) ######################################################################## # Create attribute proxies for methods and allow their execution. def __getattr__(self, name): "Create a requested attribute and return cached result." attr = self.__Attr(self.__callback, (name,)) setattr(self, name, attr) return attr def __callback(self, path, *args, **keywords): "Schedule execution of named method from attribute proxy." return self.__schedule(self.__method, path, *args, **keywords) def __method(self, path, *args, **keywords): "Extract a method and run it with the provided arguments." method = self.__obj for name in path: method = getattr(method, name) return method(*args, **keywords) ######################################################################## class __Attr: "Save an attribute's name and wait for execution." __slots__ = '__callback', '__path' def __init__(self, callback, path): "Initialize proxy with callback and method path." self.__callback = callback self.__path = path def __call__(self, *args, **keywords): "Run a known method with the given arguments." return self.__callback(self.__path, *args, **keywords) def __getattr__(self, name): "Generate a proxy object for a sub-attribute." if name in {'__func__', '__name__'}: # Hack for the "tkinter.__init__.Misc._register" method. raise AttributeError('This is not a real method!') return self.__class__(self.__callback, self.__path + (name,)) ################################################################################ # Provide thread-safe classes to be used from tkinter. class Tk(_ThreadSafe): BASE = tkinter.Tk class Frame(_ThreadSafe): BASE = tkinter.ttk.Frame class Button(_ThreadSafe): BASE = tkinter.ttk.Button class Entry(_ThreadSafe): BASE = tkinter.ttk.Entry class Progressbar(_ThreadSafe): BASE = tkinter.ttk.Progressbar class Treeview(_ThreadSafe): BASE = tkinter.ttk.Treeview class Scrollbar(_ThreadSafe): BASE = tkinter.ttk.Scrollbar class Sizegrip(_ThreadSafe): BASE = tkinter.ttk.Sizegrip class Menu(_ThreadSafe): BASE = tkinter.Menu class Directory(_ThreadSafe): BASE = tkinter.filedialog.Directory class Message(_ThreadSafe): BASE = tkinter.messagebox.Message def patch_tree(self, node, tree): "Patch differences between node and tree." node.total_size = tree.total_size node.file_size = tree.file_size self.patch_children(node, tree) self.add_children(node, tree) def add_children(self, node, tree): "Build and traverse all child nodes." for child in tree.children: subnode = node.append(child.name) self.build_tree(subnode, child) def patch_children(self, node, tree): "Patch Viewtree based on children of SizeTree." for subnode in node.children: child = tree.pop_child(subnode.name) if child is None: # Directory is gone. subnode.delete() else: # Dig down further in tree. self.__progress.step() self.patch_tree(subnode, child) @staticmethod def update_parents(node, diff): "Add in difference to node and parents." while not node.root: node.total_size += diff node = node.parent ################################################################################ # TrimDir must already exist. from . import treeview