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|
# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import re
import shutil
import string
from os.path import join, isdir, realpath
from os import link, symlink, getcwd
from inspect import cleandoc
import ranger
from ranger.ext.direction import Direction
from ranger.ext.relative_symlink import relative_symlink
from ranger.ext.keybinding_parser import key_to_string
from ranger.ext.shell_escape import shell_quote
from ranger import fsobject
from ranger.core.shared import FileManagerAware, EnvironmentAware, \
SettingsAware
from ranger.fsobject import File
from ranger.core.loader import CommandLoader
class _MacroTemplate(string.Template):
"""A template for substituting macros in commands"""
delimiter = '%'
class Actions(FileManagerAware, EnvironmentAware, SettingsAware):
search_method = 'ctime'
search_forward = False
# --------------------------
# -- Basic Commands
# --------------------------
def exit(self):
"""Exit the program"""
raise SystemExit()
def reset(self):
"""Reset the filemanager, clearing the directory buffer"""
old_path = self.env.cwd.path
self.previews = {}
self.env.garbage_collect(-1)
self.enter_dir(old_path)
def reload_cwd(self):
try:
cwd = self.env.cwd
except:
pass
cwd.unload()
cwd.load_content()
def notify(self, text, duration=4, bad=False):
if isinstance(text, Exception):
if ranger.arg.debug:
raise
bad = True
text = str(text)
self.log.appendleft(text)
if self.ui and self.ui.is_on:
self.ui.status.notify(text, duration=duration, bad=bad)
else:
print(text)
def abort(self):
try:
item = self.loader.queue[0]
except:
self.notify("Type Q or :quit<Enter> to exit Ranger")
else:
self.notify("Aborting: " + item.get_description())
self.loader.remove(index=0)
def redraw_window(self):
"""Redraw the window"""
self.ui.redraw_window()
def open_console(self, string='', prompt=None, position=None):
"""Open the console if the current UI supports that"""
self.ui.open_console(string, prompt=prompt, position=position)
def execute_console(self, string='', wildcards=[], quantifier=None):
"""Execute a command for the console"""
command_name = string.split()[0]
try:
cmd_class = self.commands.get_command(command_name)
except:
self.notify("Command not found: `%s'" % command_name, bad=True)
else:
cmd = cmd_class(string)
if cmd.resolve_macros and _MacroTemplate.delimiter in string:
macros = dict(('any%d'%i, key_to_string(char)) \
for i, char in enumerate(wildcards))
if 'any0' in macros:
macros['any'] = macros['any0']
string = self.substitute_macros(string, additional=macros)
try:
cmd_class(string, quantifier=quantifier).execute()
except Exception as error:
self.notify(error)
def substitute_macros(self, string, additional=dict()):
return _MacroTemplate(string).safe_substitute(self._get_macros(),
**additional)
def _get_macros(self):
macros = {}
if self.fm.env.cf:
macros['f'] = shell_quote(self.fm.env.cf.basename)
else:
macros['f'] = ''
macros['s'] = ' '.join(shell_quote(fl.basename) \
for fl in self.fm.env.get_selection())
macros['c'] = ' '.join(shell_quote(fl.path)
for fl in self.fm.env.copy)
macros['t'] = ' '.join(shell_quote(fl.basename)
for fl in self.fm.env.cwd.files
if fl.realpath in self.fm.tags)
if self.fm.env.cwd:
macros['d'] = shell_quote(self.fm.env.cwd.path)
else:
macros['d'] = '.'
# define d/f/s macros for each tab
for i in range(1,10):
try:
tab_dir_path = self.fm.tabs[i]
except:
continue
tab_dir = self.fm.env.get_directory(tab_dir_path)
i = str(i)
macros[i + 'd'] = shell_quote(tab_dir_path)
macros[i + 'f'] = shell_quote(tab_dir.pointed_obj.path)
macros[i + 's'] = ' '.join(shell_quote(fl.path)
for fl in tab_dir.get_selection())
# define D/F/S for the next tab
found_current_tab = False
next_tab_path = None
first_tab = None
for tab in self.fm.tabs:
if not first_tab:
first_tab = tab
if found_current_tab:
next_tab_path = self.fm.tabs[tab]
break
if self.fm.current_tab == tab:
found_current_tab = True
if found_current_tab and not next_tab_path:
next_tab_path = self.fm.tabs[first_tab]
next_tab = self.fm.env.get_directory(next_tab_path)
macros['D'] = shell_quote(next_tab)
macros['F'] = shell_quote(next_tab.pointed_obj.path)
macros['S'] = ' '.join(shell_quote(fl.path)
for fl in next_tab.get_selection())
return macros
def source_cmdlist(self, filename, narg=None):
for line in open(filename, 'r'):
line = line.rstrip("\r\n")
if line.startswith("#") or not line.strip():
continue
try:
self.execute_console(line)
except Exception as e:
if ranger.arg.debug:
raise
else:
self.notify('Error in line `%s\':\n %s' % (line, str(e)), bad=True)
def execute_file(self, files, **kw):
"""Execute a file.
app is the name of a method in Applications, without the "app_"
flags is a string consisting of runner.ALLOWED_FLAGS
mode is a positive integer.
Both flags and mode specify how the program is run."""
if isinstance(files, set):
files = list(files)
elif type(files) not in (list, tuple):
files = [files]
if 'flags' in kw:
from ranger.core.runner import Context
context = Context(files=list(files), flags=kw['flags'])
context.squash_flags()
if 'c' in context.flags:
files = [self.fm.env.cf]
self.signal_emit('execute.before', keywords=kw)
try:
return self.run(files=list(files), **kw)
finally:
self.signal_emit('execute.after')
# --------------------------
# -- Moving Around
# --------------------------
def move(self, narg=None, **kw):
"""
A universal movement method.
Accepts these parameters:
(int) down, (int) up, (int) left, (int) right, (int) to,
(bool) absolute, (bool) relative, (bool) pages,
(bool) percentage
to=X is translated to down=X, absolute=True
Example:
self.move(down=4, pages=True) # moves down by 4 pages.
self.move(to=2, pages=True) # moves to page 2.
self.move(to=1, percentage=True) # moves to 80%
"""
cwd = self.env.cwd
direction = Direction(kw)
if 'left' in direction or direction.left() > 0:
steps = direction.left()
if narg is not None:
steps *= narg
try:
directory = os.path.join(*(['..'] * steps))
except:
return
self.env.enter_dir(directory)
if cwd and cwd.accessible and cwd.content_loaded:
if 'right' in direction:
mode = 0
if narg is not None:
mode = narg
cf = self.env.cf
selection = self.env.get_selection()
if not self.env.enter_dir(cf) and selection:
if self.execute_file(selection, mode=mode) is False:
self.open_console('open_with ')
elif direction.vertical() and cwd.files:
newpos = direction.move(
direction=direction.down(),
override=narg,
maximum=len(cwd),
current=cwd.pointer,
pagesize=self.ui.browser.hei)
cwd.move(to=newpos)
def move_parent(self, n, narg=None):
if narg is not None:
n *= narg
parent = self.env.at_level(-1)
if parent is not None:
if parent.pointer + n < 0:
n = 0 - parent.pointer
try:
self.env.enter_dir(parent.files[parent.pointer+n])
except IndexError:
pass
def history_go(self, relative):
"""Move back and forth in the history"""
self.env.history_go(int(relative))
def scroll(self, relative):
"""Scroll down by <relative> lines"""
if self.ui.browser and self.ui.browser.main_column:
self.ui.browser.main_column.scroll(relative)
self.env.cf = self.env.cwd.pointed_obj
def enter_dir(self, path, remember=False, history=True):
"""Enter the directory at the given path"""
if remember:
cwd = self.env.cwd
result = self.env.enter_dir(path, history=history)
self.bookmarks.remember(cwd)
return result
return self.env.enter_dir(path, history=history)
def cd(self, path, remember=True):
"""enter the directory at the given path, remember=True"""
self.enter_dir(path, remember=remember)
def traverse(self):
cf = self.env.cf
cwd = self.env.cwd
if cf is not None and cf.is_directory:
self.enter_dir(cf.path)
elif cwd.pointer >= len(cwd) - 1:
while True:
self.move(left=1)
cwd = self.env.cwd
if cwd.pointer < len(cwd) - 1:
break
if cwd.path == '/':
break
self.move(down=1)
self.traverse()
else:
self.move(down=1)
self.traverse()
# --------------------------
# -- Shortcuts / Wrappers
# --------------------------
def execute_command(self, cmd, **kw):
return self.run(cmd, **kw)
def edit_file(self, file=None):
"""Calls execute_file with the current file and app='editor'"""
if file is None:
file = self.env.cf
elif isinstance(file, str):
file = File(os.path.expanduser(file))
if file is None:
return
self.execute_file(file, app = 'editor')
def toggle_option(self, string):
"""Toggle a boolean option named <string>"""
if isinstance(self.env.settings[string], bool):
self.env.settings[string] ^= True
def set_option(self, optname, value):
"""Set the value of an option named <optname>"""
self.env.settings[optname] = value
def sort(self, func=None, reverse=None):
if reverse is not None:
self.env.settings['sort_reverse'] = bool(reverse)
if func is not None:
self.env.settings['sort'] = str(func)
def set_filter(self, fltr):
try:
self.env.cwd.filter = fltr
except:
pass
def mark_files(self, all=False, toggle=False, val=None, movedown=None, narg=1):
"""
A wrapper for the directory.mark_xyz functions.
Arguments:
all - change all files of the current directory at once?
toggle - toggle the marked-status?
val - mark or unmark?
"""
if self.env.cwd is None:
return
cwd = self.env.cwd
if not cwd.accessible:
return
if movedown is None:
movedown = not all
if val is None and toggle is False:
return
if all:
if toggle:
cwd.toggle_all_marks()
else:
cwd.mark_all(val)
else:
for i in range(cwd.pointer, min(cwd.pointer + narg, len(cwd))):
item = cwd.files[i]
if item is not None:
if toggle:
cwd.toggle_mark(item)
else:
cwd.mark_item(item, val)
if movedown:
self.move(down=narg)
self.ui.redraw_main_column()
self.ui.status.need_redraw = True
def mark_in_direction(self, val=True, dirarg=None):
cwd = self.env.cwd
direction = Direction(dirarg)
pos, selected = direction.select(lst=cwd.files, current=cwd.pointer,
pagesize=self.env.termsize[0])
cwd.pointer = pos
cwd.correct_pointer()
for item in selected:
cwd.mark_item(item, val)
# --------------------------
# -- Searching
# --------------------------
def search_file(self, text, offset=1, regexp=True):
if isinstance(text, str) and regexp:
try:
text = re.compile(text, re.L | re.U | re.I)
except:
return False
self.env.last_search = text
self.search_next(order='search', offset=offset)
def search_next(self, order=None, offset=1, forward=True):
original_order = order
if self.search_forward:
direction = bool(forward)
else:
direction = not bool(forward)
if order is None:
order = self.search_method
else:
self.set_search_method(order=order)
if order in ('search', 'tag'):
if order == 'search':
arg = self.env.last_search
if arg is None:
return False
if hasattr(arg, 'search'):
fnc = lambda x: arg.search(x.basename)
else:
fnc = lambda x: arg in x.basename
elif order == 'tag':
fnc = lambda x: x.realpath in self.tags
return self.env.cwd.search_fnc(fnc=fnc, offset=offset, forward=forward)
elif order in ('size', 'mimetype', 'ctime', 'mtime', 'atime'):
cwd = self.env.cwd
if original_order is not None or not cwd.cycle_list:
lst = list(cwd.files)
if order == 'size':
fnc = lambda item: -item.size
elif order == 'mimetype':
fnc = lambda item: item.mimetype
elif order == 'ctime':
fnc = lambda item: -int(item.stat and item.stat.st_ctime)
elif order == 'atime':
fnc = lambda item: -int(item.stat and item.stat.st_atime)
elif order == 'mtime':
fnc = lambda item: -int(item.stat and item.stat.st_mtime)
lst.sort(key=fnc)
cwd.set_cycle_list(lst)
return cwd.cycle(forward=None)
return cwd.cycle(forward=forward)
def set_search_method(self, order, forward=True):
if order in ('search', 'tag', 'size', 'mimetype', 'ctime'):
self.search_method = order
self.search_forward = forward
# --------------------------
# -- Tags
# --------------------------
# Tags are saved in ~/.config/ranger/tagged and simply mark if a
# file is important to you in any context.
def tag_toggle(self, paths=None, value=None, movedown=None, tag=None):
if not self.tags:
return
if paths is None:
tags = tuple(x.realpath for x in self.env.get_selection())
else:
tags = [realpath(path) for path in paths]
if value is True:
self.tags.add(*tags, tag=tag or self.tags.default_tag)
elif value is False:
self.tags.remove(*tags)
else:
self.tags.toggle(*tags, tag=tag or self.tags.default_tag)
if movedown is None:
movedown = len(tags) == 1 and paths is None
if movedown:
self.move(down=1)
self.ui.redraw_main_column()
def tag_remove(self, paths=None, movedown=None):
self.tag_toggle(paths=paths, value=False, movedown=movedown)
def tag_add(self, paths=None, movedown=None):
self.tag_toggle(paths=paths, value=True, movedown=movedown)
# --------------------------
# -- Bookmarks
# --------------------------
# Using ranger.container.bookmarks.
def enter_bookmark(self, key):
"""Enter the bookmark with the name <key>"""
try:
self.bookmarks.update_if_outdated()
destination = self.bookmarks[key]
cwd = self.env.cwd
if destination.path != cwd.path:
self.bookmarks.enter(key)
self.bookmarks.remember(cwd)
except KeyError:
pass
def set_bookmark(self, key):
"""Set the bookmark with the name <key> to the current directory"""
self.bookmarks.update_if_outdated()
self.bookmarks[key] = self.env.cwd
def unset_bookmark(self, key):
"""Delete the bookmark with the name <key>"""
self.bookmarks.update_if_outdated()
self.bookmarks.delete(key)
def draw_bookmarks(self):
self.ui.browser.draw_bookmarks = True
def hide_bookmarks(self):
self.ui.browser.draw_bookmarks = False
# --------------------------
# -- Pager
# --------------------------
# These commands open the built-in pager and set specific sources.
def display_command_help(self, console_widget):
try:
command = console_widget._get_cmd_class()
except:
self.notify("Feature not available!", bad=True)
return
if not command:
self.notify("Command not found!", bad=True)
return
if not command.__doc__:
self.notify("Command has no docstring. Try using python without -OO",
bad=True)
return
pager = self.ui.open_pager()
lines = cleandoc(command.__doc__).split('\n')
pager.set_source(lines)
def display_help(self, narg=None):
manualpath = self.relpath('../doc/ranger.1')
if os.path.exists(manualpath):
process = self.run(['man', manualpath])
if process.poll() != 16:
return
process = self.run(['man', 'ranger'])
if process.poll() == 16:
self.notify("Could not find manpage.", bad=True)
def display_log(self):
pager = self.ui.open_pager()
if self.log:
pager.set_source(["Message Log:"] + list(self.log))
else:
pager.set_source(["Message Log:", "No messages!"])
def display_file(self):
if not self.env.cf or not self.env.cf.is_file:
return
pager = self.ui.open_embedded_pager()
pager.set_source(self.env.cf.get_preview_source(pager.wid, pager.hei))
# --------------------------
# -- Previews
# --------------------------
def update_preview(self, path):
try:
del self.previews[path]
self.ui.need_redraw = True
except:
return False
def get_preview(self, path, width, height):
if self.settings.preview_script and self.settings.use_preview_script:
# self.previews is a 2 dimensional dict:
# self.previews['/tmp/foo.jpg'][(80, 24)] = "the content..."
# self.previews['/tmp/foo.jpg']['loading'] = False
# A -1 in tuples means "any"; (80, -1) = wid. of 80 and any hei.
# The key 'foundpreview' is added later. Values in (True, False)
try:
data = self.previews[path]
except:
data = self.previews[path] = {'loading': False}
else:
if data['loading']:
return None
found = data.get((-1, -1), data.get((width, -1),
data.get((-1, height), data.get((width, height), False))))
if found == False:
data['loading'] = True
loadable = CommandLoader(args=[self.settings.preview_script,
path, str(width), str(height)], read=True,
silent=True, descr="Getting preview of %s" % path)
def on_after(signal):
exit = signal.process.poll()
content = signal.loader.stdout_buffer
data['foundpreview'] = True
if exit == 0:
data[(width, height)] = content
elif exit == 3:
data[(-1, height)] = content
elif exit == 4:
data[(width, -1)] = content
elif exit == 5:
data[(-1, -1)] = content
elif exit == 1:
data[(-1, -1)] = None
data['foundpreview'] = False
elif exit == 2:
data[(-1, -1)] = open(path, 'r').read(1024 * 32)
else:
data[(-1, -1)] = None
if self.env.cf.realpath == path:
self.ui.browser.need_redraw = True
data['loading'] = False
pager = self.ui.browser.pager
if self.env.cf and self.env.cf.is_file:
pager.set_source(self.env.cf.get_preview_source(
pager.wid, pager.hei))
def on_destroy(signal):
try:
del self.previews[path]
except:
pass
loadable.signal_bind('after', on_after)
loadable.signal_bind('destroy', on_destroy)
self.loader.add(loadable)
return None
else:
return found
else:
try:
return open(path, 'r')
except:
return None
# --------------------------
# -- Tabs
# --------------------------
# This implementation of tabs is very simple and keeps track of
# directory paths only.
def tab_open(self, name, path=None):
do_emit_signal = name != self.current_tab
self.current_tab = name
if path or (name in self.tabs):
self.enter_dir(path or self.tabs[name])
else:
self._update_current_tab()
if do_emit_signal:
self.signal_emit('tab.change')
def tab_close(self, name=None):
if name is None:
name = self.current_tab
if name == self.current_tab:
direction = -1 if name == self._get_tab_list()[-1] else 1
previous = self.current_tab
self.tab_move(direction)
if previous == self.current_tab:
return # can't close last tab
if name in self.tabs:
del self.tabs[name]
def tab_move(self, offset):
assert isinstance(offset, int)
tablist = self._get_tab_list()
current_index = tablist.index(self.current_tab)
newtab = tablist[(current_index + offset) % len(tablist)]
if newtab != self.current_tab:
self.tab_open(newtab)
def tab_new(self):
for i in range(1, 10):
if not i in self.tabs:
self.tab_open(i)
break
def _get_tab_list(self):
assert len(self.tabs) > 0, "There must be >=1 tabs at all times"
return sorted(self.tabs)
def _update_current_tab(self):
self.tabs[self.current_tab] = self.env.cwd.path
# --------------------------
# -- File System Operations
# --------------------------
def uncut(self):
self.env.copy = set()
self.env.cut = False
self.ui.browser.main_column.request_redraw()
def copy(self, mode='set', narg=None, dirarg=None):
"""Copy the selected items. Modes are: 'set', 'add', 'remove'."""
assert mode in ('set', 'add', 'remove')
cwd = self.env.cwd
if not narg and not dirarg:
selected = (f for f in self.env.get_selection() if f in cwd.files)
else:
if not dirarg and narg:
direction = Direction(down=1)
offset = 0
else:
direction = Direction(dirarg)
offset = 1
pos, selected = direction.select(
override=narg, lst=cwd.files, current=cwd.pointer,
pagesize=self.env.termsize[0], offset=offset)
cwd.pointer = pos
cwd.correct_pointer()
if mode == 'set':
self.env.copy = set(selected)
elif mode == 'add':
self.env.copy.update(set(selected))
elif mode == 'remove':
self.env.copy.difference_update(set(selected))
self.env.cut = False
self.ui.browser.main_column.request_redraw()
def cut(self, mode='set', narg=None, dirarg=None):
self.copy(mode=mode, narg=narg, dirarg=dirarg)
self.env.cut = True
self.ui.browser.main_column.request_redraw()
def paste_symlink(self, relative=False):
copied_files = self.env.copy
for f in copied_files:
try:
if relative:
relative_symlink(f.path, join(getcwd(), f.basename))
else:
symlink(f.path, join(getcwd(), f.basename))
except Exception as x:
self.notify(x)
def paste_hardlink(self):
for f in self.env.copy:
try:
link(f.path, join(getcwd(), f.basename))
except Exception as x:
self.notify(x)
def paste(self, overwrite=False):
"""Paste the selected items into the current directory"""
copied_files = tuple(self.env.copy)
if not copied_files:
return
def refresh(_):
cwd = self.env.get_directory(original_path)
cwd.load_content()
cwd = self.env.cwd
original_path = cwd.path
one_file = copied_files[0]
if overwrite:
cp_flags = ['-af', '--']
mv_flags = ['-f', '--']
else:
cp_flags = ['--backup=numbered', '-a', '--']
mv_flags = ['--backup=numbered', '--']
if self.env.cut:
self.env.copy.clear()
self.env.cut = False
if len(copied_files) == 1:
descr = "moving: " + one_file.path
else:
descr = "moving files from: " + one_file.dirname
obj = CommandLoader(args=['mv'] + mv_flags \
+ [f.path for f in copied_files] \
+ [cwd.path], descr=descr)
else:
if len(copied_files) == 1:
descr = "copying: " + one_file.path
else:
descr = "copying files from: " + one_file.dirname
if not overwrite and len(copied_files) == 1 \
and one_file.dirname == cwd.path:
# Special case: yypp
# copying a file onto itself -> create a backup
obj = CommandLoader(args=['cp', '-f'] + cp_flags \
+ [one_file.path, one_file.path], descr=descr)
else:
obj = CommandLoader(args=['cp'] + cp_flags \
+ [f.path for f in copied_files] \
+ [cwd.path], descr=descr)
obj.signal_bind('after', refresh)
self.loader.add(obj)
def delete(self):
self.notify("Deleting!")
selected = self.env.get_selection()
self.env.copy -= set(selected)
if selected:
for f in selected:
if isdir(f.path) and not os.path.islink(f.path):
try:
shutil.rmtree(f.path)
except OSError as err:
self.notify(err)
else:
try:
os.remove(f.path)
except OSError as err:
self.notify(err)
self.env.ensure_correct_pointer()
def mkdir(self, name):
try:
os.mkdir(os.path.join(self.env.cwd.path, name))
except OSError as err:
self.notify(err)
def rename(self, src, dest):
if hasattr(src, 'path'):
src = src.path
try:
os.renames(src, dest)
except OSError as err:
self.notify(err)
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