ranger/commands.py
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# This is a sample commands.py. You can add your own commands here.
#
# Please refer to commands_full.py for all the default commands and a complete
# documentation. Do NOT add them all here, or you may end up with defunct
# commands when upgrading ranger.
# A simple command for demonstration purposes follows.
# -----------------------------------------------------------------------------
from __future__ import (absolute_import, division, print_function)
# You can import any python module as needed.
import os
# You always need to import ranger.api.commands here to get the Command class:
from ranger.api.commands import Command
# Any class that is a subclass of "Command" will be integrated into ranger as a
# command. Try typing ":my_edit<ENTER>" in ranger!
class my_edit(Command):
# The so-called doc-string of the class will be visible in the built-in
# help that is accessible by typing "?c" inside ranger.
""":my_edit <filename>
A sample command for demonstration purposes that opens a file in an editor.
"""
# The execute method is called when you run this command in ranger.
def execute(self):
# self.arg(1) is the first (space-separated) argument to the function.
# This way you can write ":my_edit somefilename<ENTER>".
if self.arg(1):
# self.rest(1) contains self.arg(1) and everything that follows
target_filename = self.rest(1)
else:
# self.fm is a ranger.core.filemanager.FileManager object and gives
# you access to internals of ranger.
# self.fm.thisfile is a ranger.container.file.File object and is a
# reference to the currently selected file.
target_filename = self.fm.thisfile.path
# This is a generic function to print text in ranger.
self.fm.notify("Let's edit the file " + target_filename + "!")
# Using bad=True in fm.notify allows you to print error messages:
if not os.path.exists(target_filename):
self.fm.notify("The given file does not exist!", bad=True)
return
# This executes a function from ranger.core.acitons, a module with a
# variety of subroutines that can help you construct commands.
# Check out the source, or run "pydoc ranger.core.actions" for a list.
self.fm.edit_file(target_filename)
# The tab method is called when you press tab, and should return a list of
# suggestions that the user will tab through.
# tabnum is 1 for <TAB> and -1 for <S-TAB> by default
def tab(self, tabnum):
# This is a generic tab-completion function that iterates through the
# content of the current directory.
return self._tab_directory_content()
class fzf_select(Command):
"""
:fzf_select
Find a file using fzf.
With a prefix argument select only directories.
See: https://github.com/junegunn/fzf
"""
def execute(self):
import subprocess
import os.path
if self.quantifier:
# match only directories
command="find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-o -type d -print 2> /dev/null | sed 1d | cut -b3- | fzf +m"
else:
# match files and directories
command="find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-o -print 2> /dev/null | sed 1d | cut -b3- | fzf +m"
fzf = self.fm.execute_command(command, universal_newlines=True, stdout=subprocess.PIPE)
stdout, stderr = fzf.communicate()
if fzf.returncode == 0:
fzf_file = os.path.abspath(stdout.rstrip('\n'))
if os.path.isdir(fzf_file):
self.fm.cd(fzf_file)
else:
self.fm.select_file(fzf_file)
class fzf_locate(Command):
"""
:fzf_locate
Find a file using fzf.
With a prefix argument select only directories.
See: https://github.com/junegunn/fzf
"""
def execute(self):
import subprocess
import os.path
if self.quantifier:
# match only directories
command="locate home run | fzf"
else:
# match files and directories
command="locate home run | fzf"
fzf = self.fm.execute_command(command, universal_newlines=True, stdout=subprocess.PIPE)
stdout, stderr = fzf.communicate()
if fzf.returncode == 0:
fzf_file = os.path.abspath(stdout.rstrip('\n'))
if os.path.isdir(fzf_file):
self.fm.cd(fzf_file)
else:
self.fm.select_file(fzf_file)