ranger - mirror of ranger - a simple, vim-like file manager

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doc/pydoc/ranger.colorschemes.html

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# Copyright (c) 2009, 2010 hut <hut@lavabit.com> # # Permission to use, copy, modify, and/or distribute this software for any # purpose with or without fee is hereby granted, provided that the above # copyright notice and this permission notice appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. from os.path import abspath, normpath, join, expanduser, isdir import os from ranger.fsobject.directory import Directory, NoDirectoryGiven from ranger.container import KeyBuffer, History from ranger.shared import SettingsAware import curses class Environment(SettingsAware): """A collection of data which is relevant for more than one class. """ pwd = None # current directory cf = None # current file copy = None cmd = None cut = None termsize = None history = None directories = None last_search = None pathway = None path = None keybuffer = None def __init__(self, path): self.path = abspath(expanduser(path)) self.pathway = () self.directories = {} self.keybuffer = KeyBuffer() self.copy = set() self.history = History(self.settings.max_history_size) from ranger.shared import EnvironmentAware EnvironmentAware.env = self def key_append(self, key): """Append a key to the keybuffer""" # special keys: if key == curses.KEY_RESIZE: self.keybuffer.clear() self.keybuffer.append(key) def key_clear(self): """Clear the keybuffer""" self.keybuffer.clear() def at_level(self, level): """Returns the FileSystemObject at the given level. level 1 => preview level 0 => current file/directory level <0 => parent directories""" if level <= 0: try: return self.pathway[level - 1] except IndexError: return None else: try: return self.directories[self.cf.path] except AttributeError: return None except KeyError: return self.cf def garbage_collect(self): """Delete unused directory objects""" from ranger.fsobject.fsobject import FileSystemObject for key in tuple(self.directories.keys()): value = self.directories[key] if isinstance(value, FileSystemObject): if value.is_older_than(1200): del self.directories[key] def get_selection(self): if self.pwd: return self.pwd.get_selection() return set() def get_directory(self, path): """Get the directory object at the given path""" path = abspath(path) try: return self.directories[path] except KeyError: obj = Directory(path) self.directories[path] = obj return obj def get_free_space(self, path): from os import statvfs stat = statvfs(path) return stat.f_bavail * stat.f_bsize def assign_correct_cursor_positions(self): """Assign correct cursor positions for subdirectories""" last_path = None for path in reversed(self.pathway): if last_path is None: last_path = path continue path.move_to_obj(last_path) last_path = path def history_go(self, relative): """Move relative in history""" if self.history: self.history.move(relative).go() def enter_dir(self, path, history = True): """Enter given path""" if path is None: return path = str(path) # get the absolute path path = normpath(join(self.path, expanduser(path))) if not isdir(path): return try: new_pwd = self.get_directory(path) except NoDirectoryGiven: return False self.path = path self.pwd = new_pwd os.chdir(path) self.pwd.load_content_if_outdated() # build the pathway, a tuple of directory objects which lie # on the path to the current directory. if path == '/': self.pathway = (self.get_directory('/'), ) else: pathway = [] currentpath = '/' for dir in path.split('/'): currentpath = join(currentpath, dir) pathway.append(self.get_directory(currentpath)) self.pathway = tuple(pathway) self.assign_correct_cursor_positions() # set the current file. self.pwd.directories_first = self.settings.directories_first self.pwd.sort_if_outdated() self.cf = self.pwd.pointed_obj if history: self.history.add(new_pwd) return True


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