Bump to 1.27

Added sudo rule for Fedora yum's output.

README.md

@@ -65,11 +65,27 @@ Did you mean this?
          repl
 
 ➜ fuck
+lein repl
 nREPL server started on port 54848 on host 127.0.0.1 - nrepl://127.0.0.1:54848
 REPL-y 0.3.1
 ...
 ```
 
+If you are scared to blindly run changed command, there's `require_confirmation`
+[settings](#settings) option:
+
+```bash
+➜ apt-get install vim
+E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
+E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
+
+➜ fuck
+sudo apt-get install vim [Enter/Ctrl+C]
+[sudo] password for nvbn:
+Reading package lists... Done
+...
+```
+
 ## Requirements
 
 - pip
@@ -133,11 +149,21 @@ The Fuck tries to match rule for the previous command, create new command
 using matched rule and run it. Rules enabled by default:
 
 * `cd_parent` – changes `cd..` to `cd ..`;
+* `cp_omitting_directory` – adds `-a` when you `cp` directory;
 * `git_no_command` – fixes wrong git commands like `git brnch`;
 * `git_push` – adds `--set-upstream origin $branch` to previous failed `git push`;
+* `has_exists_script` – prepends `./` when script/binary exists;
+* `lein_not_task` – fixes wrong `lein` tasks like `lein rpl`;
+* `mkdir_p` – adds `-p` when you trying to create directory without parent;
 * `no_command` – fixes wrong console commands, for example `vom/vim`;
+* `python_command` – prepends `python` when you trying to run not executable/without `./` python script;
+* `rm_dir` – adds `-rf` when you trying to remove directory;
 * `sudo` – prepends `sudo` to previous command if it failed because of permissions;
-* `lein_not_task` – fixes wrong `lein` tasks like `lein rpl`.
+* `switch_layout` – switches command from your local layout to en.
+
+Bundled, but not enabled by default:
+
+* `rm_root` – adds `--no-preserve-root` to `rm -rf /` command.
 
 ## Creating your own rules
 
@@ -167,12 +193,12 @@ def get_new_command(command, settings):
 
 ## Settings
 
-The Fuck has a few settings parameters:
+The Fuck has a few settings parameters, they can be changed in `~/.thefuck/settings.py`:
 
 * `rules` – list of enabled rules, by default all;
+* `require_confirmation` – require confirmation before running new command, by default `False`; 
 * `wait_command` – max amount of time in seconds for getting previous command output;
-* `command_not_found` – path to `command_not_found` binary,
-by default `/usr/lib/command-not-found`.
+* `no_colors` – disable colored output.
 
 ## Developing
 

release.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+from subprocess import call
+import re
+
+
+version = None
+
+
+def get_new_setup_py_lines():
+    global version
+    with open('setup.py', 'r') as sf:
+        current_setup = sf.readlines()
+    for line in current_setup:
+        if line.startswith('VERSION = '):
+            major, minor = re.findall(r"VERSION = '(\d+)\.(\d+)'", line)[0]
+            version = "{}.{}".format(major, int(minor) + 1)
+            yield "VERSION = '{}'\n".format(version)
+        else:
+            yield line
+
+
+lines = list(get_new_setup_py_lines())
+with open('setup.py', 'w') as sf:
+    sf.writelines(lines)
+
+call('git pull', shell=True)
+call('git commit -am "Bump to {}"'.format(version), shell=True)
+call('git tag {}'.format(version), shell=True)
+call('git push', shell=True)
+call('git push --tags', shell=True)
+call('python setup.py sdist upload', shell=True)

setup.py

@@ -1,16 +1,20 @@
 from setuptools import setup, find_packages
 
 
+VERSION = '1.27'
+
+
 setup(name='thefuck',
-      version=1.14,
+      version=VERSION,
       description="Magnificent app which corrects your previous console command",
       author='Vladimir Iakovlev',
       author_email='nvbn.rm@gmail.com',
       url='https://github.com/nvbn/thefuck',
       license='MIT',
-      packages=find_packages(exclude=['ez_setup', 'examples', 'tests']),
+      packages=find_packages(exclude=['ez_setup', 'examples',
+                                      'tests', 'release']),
       include_package_data=True,
       zip_safe=False,
-      install_requires=['pathlib', 'psutil'],
+      install_requires=['pathlib', 'psutil', 'colorama', 'six'],
       entry_points={'console_scripts': [
           'thefuck = thefuck.main:main']})

tests/rules/test_cd_parent.py

@@ -0,0 +1,12 @@
+from thefuck.main import Command
+from thefuck.rules.cd_parent import match, get_new_command
+
+
+def test_match():
+    assert match(Command('cd..', '', 'cd..: command not found'), None)
+    assert not match(Command('', '', ''), None)
+
+
+def test_get_new_command():
+    assert get_new_command(
+        Command('cd..', '', ''), None) == 'cd ..'

tests/rules/test_cp_omitting_directory.py

@@ -0,0 +1,14 @@
+from mock import Mock
+from thefuck.rules.cp_omitting_directory import match, get_new_command
+
+
+def test_match():
+    assert match(Mock(script='cp dir', stderr="cp: omitting directory 'dir'"),
+                 None)
+    assert not match(Mock(script='some dir',
+                          stderr="cp: omitting directory 'dir'"), None)
+    assert not match(Mock(script='cp dir', stderr=""), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Mock(script='cp dir'), None) == 'cp -a dir'

tests/rules/test_no_command.py

@@ -1,62 +1,19 @@
-from subprocess import PIPE
 from mock import patch, Mock
-import pytest
 from thefuck.rules.no_command import match, get_new_command
-from thefuck.main import Command
 
 
-@pytest.fixture
-def command_found():
-    return b'''No command 'aptget' found, did you mean:
- Command 'apt-get' from package 'apt' (main)
-aptget: command not found
-'''
-
-@pytest.fixture
-def command_not_found():
-    return b'''No command 'vom' found, but there are 19 similar ones
-vom: command not found
-'''
+def test_match():
+    with patch('thefuck.rules.no_command._get_all_bins',
+               return_value=['vim', 'apt-get']):
+        assert match(Mock(stderr='vom: not found', script='vom file.py'), None)
+        assert not match(Mock(stderr='qweqwe: not found', script='qweqwe'), None)
+        assert not match(Mock(stderr='some text', script='vom file.py'), None)
 
 
-@pytest.fixture
-def bins_exists(request):
-    p = patch('thefuck.rules.no_command.which',
-              return_value=True)
-    p.start()
-    request.addfinalizer(p.stop)
-
-
-@pytest.fixture
-def settings():
-    class _Settings(object):
-        pass
-    return _Settings
-
-
-@pytest.mark.usefixtures('bins_exists')
-def test_match(command_found, command_not_found, settings):
-    with patch('thefuck.rules.no_command.Popen') as Popen:
-        Popen.return_value.stderr.read.return_value = command_found
-        assert match(Command('aptget install vim', '', ''), settings)
-        Popen.assert_called_once_with('/usr/lib/command-not-found aptget',
-                                      shell=True, stderr=PIPE)
-        Popen.return_value.stderr.read.return_value = command_not_found
-        assert not match(Command('ls', '', ''), settings)
-
-    with patch('thefuck.rules.no_command.Popen') as Popen:
-        Popen.return_value.stderr.read.return_value = command_found
-        assert match(Command('sudo aptget install vim', '', ''),
-                     Mock(command_not_found='test'))
-        Popen.assert_called_once_with('test aptget',
-                                      shell=True, stderr=PIPE)
-
-
-@pytest.mark.usefixtures('bins_exists')
-def test_get_new_command(command_found):
-    with patch('thefuck.rules.no_command._get_output',
-               return_value=command_found.decode()):
-        assert get_new_command(Command('aptget install vim', '', ''), settings)\
-            == 'apt-get install vim'
-        assert get_new_command(Command('sudo aptget install vim', '', ''), settings) \
-            == 'sudo apt-get install vim'
+def test_get_new_command():
+    with patch('thefuck.rules.no_command._get_all_bins',
+               return_value=['vim', 'apt-get']):
+        assert get_new_command(
+            Mock(stderr='vom: not found',
+                 script='vom file.py'),
+            None) == 'vim file.py'

tests/rules/test_rm_root.py

@@ -0,0 +1,18 @@
+from mock import Mock
+from thefuck.rules.rm_root import match, get_new_command
+
+
+def test_match():
+    assert match(Mock(script='rm -rf /',
+                      stderr='add --no-preserve-root'), None)
+    assert not match(Mock(script='ls',
+                          stderr='add --no-preserve-root'), None)
+    assert not match(Mock(script='rm --no-preserve-root /',
+                          stderr='add --no-preserve-root'), None)
+    assert not match(Mock(script='rm -rf /',
+                          stderr=''), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Mock(script='rm -rf /'), None) \
+        == 'rm -rf / --no-preserve-root'

tests/rules/test_ssh_known_host.py

@@ -0,0 +1,69 @@
+import os
+import pytest
+from mock import Mock
+from thefuck.main import Command
+from thefuck.rules.ssh_known_hosts import match, get_new_command, remove_offending_keys
+
+
+@pytest.fixture
+def ssh_error(tmpdir):
+    path = os.path.join(str(tmpdir), 'known_hosts')
+
+    def reset(path):
+        with open(path, 'w') as fh:
+            lines = [
+                '123.234.567.890 asdjkasjdakjsd\n'
+                '98.765.432.321 ejioweojwejrosj\n'
+                '111.222.333.444 qwepoiwqepoiss\n'
+            ]
+            fh.writelines(lines)
+
+    def known_hosts(path):
+        with open(path, 'r') as fh:
+            return fh.readlines()
+
+    reset(path)
+
+    errormsg = u"""@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
+@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
+Someone could be eavesdropping on you right now (man-in-the-middle attack)!
+It is also possible that a host key has just been changed.
+The fingerprint for the RSA key sent by the remote host is
+b6:cb:07:34:c0:a0:94:d3:0d:69:83:31:f4:c5:20:9b.
+Please contact your system administrator.
+Add correct host key in {0} to get rid of this message.
+Offending RSA key in {0}:2
+RSA host key for {1} has changed and you have requested strict checking.
+Host key verification failed.""".format(path, '98.765.432.321')
+
+    return errormsg, path, reset, known_hosts
+
+
+def test_match(ssh_error):
+    errormsg, _, _, _ = ssh_error
+    assert match(Command('ssh', '', errormsg), None)
+    assert match(Command('ssh', '', errormsg), None)
+    assert match(Command('scp something something', '', errormsg), None)
+    assert match(Command('scp something something', '', errormsg), None)
+    assert not match(Command('', '', errormsg), None)
+    assert not match(Command('notssh', '', errormsg), None)
+    assert not match(Command('ssh', '', ''), None)
+
+
+def test_remove_offending_keys(ssh_error):
+    errormsg, path, reset, known_hosts = ssh_error
+    command = Command('ssh user@host', '', errormsg)
+    remove_offending_keys(command, None)
+    expected = ['123.234.567.890 asdjkasjdakjsd\n', '111.222.333.444 qwepoiwqepoiss\n']
+    assert known_hosts(path) == expected
+
+
+def test_get_new_command(ssh_error, monkeypatch):
+    errormsg, _, _, _ = ssh_error
+
+    method = Mock()
+    monkeypatch.setattr('thefuck.rules.ssh_known_hosts.remove_offending_keys', method)
+    assert get_new_command(Command('ssh user@host', '', errormsg), None) == 'ssh user@host'
+    assert method.call_count

tests/rules/test_switch_lang.py

@@ -0,0 +1,25 @@
+# -*- encoding: utf-8 -*-
+
+from mock import Mock
+from thefuck.rules import switch_lang
+
+
+def test_match():
+    assert switch_lang.match(Mock(stderr='command not found: фзе-пуе',
+                                  script=u'фзе-пуе'), None)
+    assert switch_lang.match(Mock(stderr='command not found: λσ',
+                                  script=u'λσ'), None)
+
+    assert not switch_lang.match(Mock(stderr='command not found: pat-get',
+                                      script=u'pat-get'), None)
+    assert not switch_lang.match(Mock(stderr='command not found: ls',
+                                      script=u'ls'), None)
+    assert not switch_lang.match(Mock(stderr='some info',
+                                      script=u'фзе-пуе'), None)
+
+
+def test_get_new_command():
+    assert switch_lang.get_new_command(
+        Mock(script=u'фзе-пуе штыефдд мшь'), None) == 'apt-get install vim'
+    assert switch_lang.get_new_command(
+        Mock(script=u'λσ -λα'), None) == 'ls -la'

tests/test_logs.py

@@ -0,0 +1,7 @@
+from mock import Mock
+from thefuck import logs
+
+
+def test_color():
+    assert logs.color('red', Mock(no_colors=False)) == 'red'
+    assert logs.color('red', Mock(no_colors=True)) == ''

tests/test_main.py

@@ -12,9 +12,14 @@ def test_get_settings():
 
 
 def test_is_rule_enabled():
-    assert main.is_rule_enabled(Mock(rules=None), Path('bash.py'))
-    assert main.is_rule_enabled(Mock(rules=['bash']), Path('bash.py'))
-    assert not main.is_rule_enabled(Mock(rules=['bash']), Path('lisp.py'))
+    assert main.is_rule_enabled(Mock(rules=None),
+                                main.Rule('bash', None, None, True))
+    assert not main.is_rule_enabled(Mock(rules=None),
+                                    main.Rule('bash', None, None, False))
+    assert main.is_rule_enabled(Mock(rules=['bash']),
+                                main.Rule('bash', None, None, True))
+    assert not main.is_rule_enabled(Mock(rules=['bash']),
+                                    main.Rule('lisp', None, None, True))
 
 
 def test_load_rule():
@@ -23,26 +28,29 @@ def test_load_rule():
     with patch('thefuck.main.load_source',
                return_value=Mock(
                    match=match,
-                   get_new_command=get_new_command)) as load_source:
-        assert main.load_rule(Path('/rules/bash.py')) == main.Rule(match, get_new_command)
+                   get_new_command=get_new_command,
+                   enabled_by_default=True)) as load_source:
+        assert main.load_rule(Path('/rules/bash.py')) \
+               == main.Rule('bash', match, get_new_command, True)
         load_source.assert_called_once_with('bash', '/rules/bash.py')
 
 
 def test_get_rules():
     with patch('thefuck.main.Path.glob') as glob, \
             patch('thefuck.main.load_source',
-                  lambda x, _: Mock(match=x, get_new_command=x)):
+                  lambda x, _: Mock(match=x, get_new_command=x,
+                                    enabled_by_default=True)):
         glob.return_value = [PosixPath('bash.py'), PosixPath('lisp.py')]
-        assert main.get_rules(
+        assert list(main.get_rules(
             Path('~'),
-            Mock(rules=None)) == [main.Rule('bash', 'bash'),
-                                  main.Rule('lisp', 'lisp'),
-                                  main.Rule('bash', 'bash'),
-                                  main.Rule('lisp', 'lisp')]
-        assert main.get_rules(
+            Mock(rules=None))) == [main.Rule('bash', 'bash', 'bash', True),
+                                   main.Rule('lisp', 'lisp', 'lisp', True),
+                                   main.Rule('bash', 'bash', 'bash', True),
+                                   main.Rule('lisp', 'lisp', 'lisp', True)]
+        assert list(main.get_rules(
             Path('~'),
-            Mock(rules=['bash'])) == [main.Rule('bash', 'bash'),
-                                      main.Rule('bash', 'bash')]
+            Mock(rules=['bash']))) == [main.Rule('bash', 'bash', 'bash', True),
+                                       main.Rule('bash', 'bash', 'bash', True)]
 
 
 def test_get_command():
@@ -61,12 +69,43 @@ def test_get_command():
                                       stdout=PIPE,
                                       stderr=PIPE,
                                       env={'LANG': 'C'})
+        assert main.get_command(Mock(), ['']) is None
 
 
-def test_get_matched_rule():
-    rules = [main.Rule(lambda x, _: x.script == 'cd ..', None),
-             main.Rule(lambda *_: False, None)]
+def test_get_matched_rule(capsys):
+    rules = [main.Rule('', lambda x, _: x.script == 'cd ..', None, True),
+             main.Rule('', lambda *_: False, None, True),
+             main.Rule('rule', Mock(side_effect=OSError('Denied')), None, True)]
     assert main.get_matched_rule(main.Command('ls', '', ''),
-                                 rules, None) is None
+                                 rules, Mock(no_colors=True)) is None
     assert main.get_matched_rule(main.Command('cd ..', '', ''),
-                                 rules, None) == rules[0]
+                                 rules, Mock(no_colors=True)) == rules[0]
+    assert capsys.readouterr()[1].split('\n')[0] \
+           == '[WARN] Rule rule:'
+
+
+def test_run_rule(capsys):
+    with patch('thefuck.main.confirm', return_value=True):
+        main.run_rule(main.Rule('', None, lambda *_: 'new-command', True),
+                      None, None)
+        assert capsys.readouterr() == ('new-command\n', '')
+    with patch('thefuck.main.confirm', return_value=False):
+        main.run_rule(main.Rule('', None, lambda *_: 'new-command', True),
+                      None, None)
+        assert capsys.readouterr() == ('', '')
+
+
+def test_confirm(capsys):
+    # When confirmation not required:
+    assert main.confirm('command', Mock(require_confirmation=False))
+    assert capsys.readouterr() == ('', 'command\n')
+    # When confirmation required and confirmed:
+    with patch('thefuck.main.sys.stdin.read', return_value='\n'):
+        assert main.confirm('command', Mock(require_confirmation=True,
+                                            no_colors=True))
+        assert capsys.readouterr() == ('', 'command [enter/ctrl+c]')
+    # When confirmation required and ctrl+c:
+    with patch('thefuck.main.sys.stdin.read', side_effect=KeyboardInterrupt):
+        assert not main.confirm('command', Mock(require_confirmation=True,
+                                                no_colors=True))
+        assert capsys.readouterr() == ('', 'command [enter/ctrl+c]Aborted\n')

tests/test_utils.py

@@ -0,0 +1,17 @@
+from mock import Mock
+from thefuck.utils import sudo_support
+from thefuck.main import Command
+
+
+def test_sudo_support():
+    fn = Mock(return_value=True, __name__='')
+    assert sudo_support(fn)(Command('sudo ls', 'out', 'err'), None)
+    fn.assert_called_once_with(Command('ls', 'out', 'err'), None)
+
+    fn.return_value = False
+    assert not sudo_support(fn)(Command('sudo ls', 'out', 'err'), None)
+
+    fn.return_value = 'pwd'
+    assert sudo_support(fn)(Command('sudo ls', 'out', 'err'), None) == 'sudo pwd'
+
+    assert sudo_support(fn)(Command('ls', 'out', 'err'), None) == 'pwd'

thefuck/logs.py

@@ -0,0 +1,47 @@
+import sys
+from traceback import format_exception
+import colorama
+
+
+def color(color_, settings):
+    """Utility for ability to disabling colored output."""
+    if settings.no_colors:
+        return ''
+    else:
+        return color_
+
+
+def rule_failed(rule, exc_info, settings):
+    sys.stderr.write(
+        u'{warn}[WARN] Rule {name}:{reset}\n{trace}'
+        u'{warn}----------------------------{reset}\n\n'.format(
+            warn=color(colorama.Back.RED + colorama.Fore.WHITE
+                       + colorama.Style.BRIGHT, settings),
+            reset=color(colorama.Style.RESET_ALL, settings),
+            name=rule.name,
+            trace=''.join(format_exception(*exc_info))))
+
+
+def show_command(new_command, settings):
+    sys.stderr.write('{bold}{command}{reset}\n'.format(
+        command=new_command,
+        bold=color(colorama.Style.BRIGHT, settings),
+        reset=color(colorama.Style.RESET_ALL, settings)))
+
+
+def confirm_command(new_command, settings):
+    sys.stderr.write(
+        '{bold}{command}{reset} [{green}enter{reset}/{red}ctrl+c{reset}]'.format(
+            command=new_command,
+            bold=color(colorama.Style.BRIGHT, settings),
+            green=color(colorama.Fore.GREEN, settings),
+            red=color(colorama.Fore.RED, settings),
+            reset=color(colorama.Style.RESET_ALL, settings)))
+    sys.stderr.flush()
+
+
+def failed(msg, settings):
+    sys.stderr.write('{red}{msg}{reset}\n'.format(
+        msg=msg,
+        red=color(colorama.Fore.RED, settings),
+        reset=color(colorama.Style.RESET_ALL, settings)))

thefuck/main.py

@@ -6,10 +6,13 @@ from subprocess import Popen, PIPE
 import os
 import sys
 from psutil import Process, TimeoutExpired
+import colorama
+from thefuck import logs
 
 
 Command = namedtuple('Command', ('script', 'stdout', 'stderr'))
-Rule = namedtuple('Rule', ('match', 'get_new_command'))
+Rule = namedtuple('Rule', ('name', 'match', 'get_new_command',
+                           'enabled_by_default'))
 
 
 def setup_user_dir():
@@ -28,6 +31,8 @@ def get_settings(user_dir):
                            str(user_dir.joinpath('settings.py')))
     settings.__dict__.setdefault('rules', None)
     settings.__dict__.setdefault('wait_command', 3)
+    settings.__dict__.setdefault('require_confirmation', False)
+    settings.__dict__.setdefault('no_colors', False)
     return settings
 
 
@@ -36,13 +41,20 @@ def is_rule_enabled(settings, rule):
     isn't defined.
 
     """
-    return settings.rules is None or rule.name[:-3] in settings.rules
+    if settings.rules is None and rule.enabled_by_default:
+        return True
+    elif settings.rules and rule.name in settings.rules:
+        return True
+    else:
+        return False
 
 
 def load_rule(rule):
     """Imports rule module and returns it."""
     rule_module = load_source(rule.name[:-3], str(rule))
-    return Rule(rule_module.match, rule_module.get_new_command)
+    return Rule(rule.name[:-3], rule_module.match,
+                rule_module.get_new_command,
+                getattr(rule_module, 'enabled_by_default', True))
 
 
 def get_rules(user_dir, settings):
@@ -51,8 +63,11 @@ def get_rules(user_dir, settings):
                             .joinpath('rules')\
                             .glob('*.py')
     user = user_dir.joinpath('rules').glob('*.py')
-    return [load_rule(rule) for rule in sorted(list(bundled)) + list(user)
-            if rule.name != '__init__.py' and is_rule_enabled(settings, rule)]
+    for rule in sorted(list(bundled)) + list(user):
+        if rule.name != '__init__.py':
+            loaded_rule = load_rule(rule)
+            if is_rule_enabled(settings, loaded_rule):
+                yield loaded_rule
 
 
 def wait_output(settings, popen):
@@ -75,7 +90,14 @@ def wait_output(settings, popen):
 
 def get_command(settings, args):
     """Creates command from `args` and executes it."""
-    script = ' '.join(args[1:])
+    if sys.version_info[0] < 3:
+        script = ' '.join(arg.decode('utf-8') for arg in args[1:])
+    else:
+        script = ' '.join(args[1:])
+
+    if not script:
+        return
+
     result = Popen(script, shell=True, stdout=PIPE, stderr=PIPE,
                    env=dict(os.environ, LANG='C'))
     if wait_output(settings, result):
@@ -86,15 +108,33 @@ def get_command(settings, args):
 def get_matched_rule(command, rules, settings):
     """Returns first matched rule for command."""
     for rule in rules:
-        if rule.match(command, settings):
-            return rule
+        try:
+            if rule.match(command, settings):
+                return rule
+        except Exception:
+            logs.rule_failed(rule, sys.exc_info(), settings)
+
+
+def confirm(new_command, settings):
+    """Returns `True` when running of new command confirmed."""
+    if not settings.require_confirmation:
+        logs.show_command(new_command, settings)
+        return True
+
+    logs.confirm_command(new_command, settings)
+    try:
+        sys.stdin.read(1)
+        return True
+    except KeyboardInterrupt:
+        logs.failed('Aborted', settings)
+        return False
 
 
 def run_rule(rule, command, settings):
     """Runs command from rule for passed command."""
     new_command = rule.get_new_command(command, settings)
-    sys.stderr.write(new_command + '\n')
-    print(new_command)
+    if confirm(new_command, settings):
+        print(new_command)
 
 
 def is_second_run(command):
@@ -103,13 +143,14 @@ def is_second_run(command):
 
 
 def main():
+    colorama.init()
     user_dir = setup_user_dir()
     settings = get_settings(user_dir)
 
     command = get_command(settings, sys.argv)
     if command:
         if is_second_run(command):
-            print("echo Can't fuck twice")
+            logs.failed("Can't fuck twice", settings)
             return
 
         rules = get_rules(user_dir, settings)
@@ -118,4 +159,4 @@ def main():
             run_rule(matched_rule, command, settings)
             return
 
-    print('echo No fuck given')
+    logs.failed('No fuck given', settings)

thefuck/rules/cp_omitting_directory.py

@@ -0,0 +1,13 @@
+import re
+from thefuck.utils import sudo_support
+
+
+@sudo_support
+def match(command, settings):
+    return command.script.startswith('cp ') \
+        and 'cp: omitting directory' in command.stderr.lower()
+
+
+@sudo_support
+def get_new_command(command, settings):
+    return re.sub(r'^cp', 'cp -a', command.script)

thefuck/rules/has_exists_script.py

@@ -1,11 +1,14 @@
 import os
+from thefuck.utils import sudo_support
 
 
+@sudo_support
 def match(command, settings):
     return os.path.exists(command.script.split()[0]) \
         and 'command not found' in command.stderr
 
 
+@sudo_support
 def get_new_command(command, settings):
-    return './{}'.format(command.script)
+    return u'./{}'.format(command.script)
 

thefuck/rules/lein_not_task.py

@@ -1,12 +1,15 @@
 import re
+from thefuck.utils import sudo_support
 
 
+@sudo_support
 def match(command, settings):
     return (command.script.startswith('lein')
             and "is not a task. See 'lein help'" in command.stderr
             and 'Did you mean this?' in command.stderr)
 
 
+@sudo_support
 def get_new_command(command, settings):
     broken_cmd = re.findall(r"'([^']*)' is not a task",
                             command.stderr)[0]

thefuck/rules/mkdir_p.py

@@ -1,9 +1,13 @@
 import re
+from thefuck.utils import sudo_support
 
+
+@sudo_support
 def match(command, settings):
     return ('mkdir' in command.script
             and 'No such file or directory' in command.stderr)
 
 
+@sudo_support
 def get_new_command(command, settings):
     return re.sub('^mkdir (.*)', 'mkdir -p \\1', command.script)

thefuck/rules/no_command.py

@@ -1,30 +1,33 @@
-from subprocess import Popen, PIPE
-import re
-from thefuck.utils import which, wrap_settings
+from difflib import get_close_matches
+import os
+from pathlib import Path
+from thefuck.utils import sudo_support
 
 
-local_settings = {'command_not_found': '/usr/lib/command-not-found'}
+def _safe(fn, fallback):
+    try:
+        return fn()
+    except OSError:
+        return fallback
 
 
-def _get_output(command, settings):
-    name = command.script.split(' ')[command.script.startswith('sudo')]
-    check_script = '{} {}'.format(settings.command_not_found, name)
-    result = Popen(check_script, shell=True, stderr=PIPE)
-    return result.stderr.read().decode('utf-8')
+def _get_all_bins():
+    return [exe.name
+            for path in os.environ.get('PATH', '').split(':')
+            for exe in _safe(lambda: list(Path(path).iterdir()), [])
+            if not _safe(exe.is_dir, True)]
 
 
-@wrap_settings(local_settings)
+@sudo_support
 def match(command, settings):
-    if which(settings.command_not_found):
-        output = _get_output(command, settings)
-        return "No command" in output and "from package" in output
+    return 'not found' in command.stderr and \
+           bool(get_close_matches(command.script.split(' ')[0],
+                                  _get_all_bins()))
 
 
-@wrap_settings(local_settings)
+@sudo_support
 def get_new_command(command, settings):
-    output = _get_output(command, settings)
-    broken_name = re.findall(r"No command '([^']*)' found",
-                             output)[0]
-    fixed_name = re.findall(r"Command '([^']*)' from package",
-                            output)[0]
-    return command.script.replace(broken_name, fixed_name, 1)
+    old_command = command.script.split(' ')[0]
+    new_command = get_close_matches(old_command,
+                                    _get_all_bins())[0]
+    return ' '.join([new_command] + command.script.split(' ')[1:])

thefuck/rules/python_command.py

@@ -1,13 +1,18 @@
+from thefuck.utils import sudo_support
 # add 'python' suffix to the command if
 #  1) The script does not have execute permission or
 #  2) is interpreted as shell script
 
-def match(command, settings):
-  toks = command.script.split()
-  return (len(toks) > 0
-          and toks[0].endswith('.py')
-          and ('Permission denied' in command.stderr or
-               'command not found' in command.stderr))
 
+@sudo_support
+def match(command, settings):
+    toks = command.script.split()
+    return (len(toks) > 0
+            and toks[0].endswith('.py')
+            and ('Permission denied' in command.stderr or
+                 'command not found' in command.stderr))
+
+
+@sudo_support
 def get_new_command(command, settings):
-  return 'python ' + command.script
+    return 'python ' + command.script

thefuck/rules/rm_dir.py

@@ -1,9 +1,13 @@
 import re
+from thefuck.utils import sudo_support
 
+
+@sudo_support
 def match(command, settings):
     return ('rm' in command.script
             and 'is a directory' in command.stderr)
 
 
+@sudo_support
 def get_new_command(command, settings):
     return re.sub('^rm (.*)', 'rm -rf \\1', command.script)

thefuck/rules/rm_root.py

@@ -0,0 +1,16 @@
+from thefuck.utils import sudo_support
+
+
+enabled_by_default = False
+
+
+@sudo_support
+def match(command, settings):
+    return ({'rm', '/'}.issubset(command.script.split())
+            and '--no-preserve-root' not in command.script
+            and '--no-preserve-root' in command.stderr)
+
+
+@sudo_support
+def get_new_command(command, settings):
+    return u'{} --no-preserve-root'.format(command.script)

thefuck/rules/ssh_known_hosts.py

@@ -0,0 +1,37 @@
+import re
+
+patterns = [
+    r'WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!',
+    r'WARNING: POSSIBLE DNS SPOOFING DETECTED!',
+    r"Warning: the \S+ host key for '([^']+)' differs from the key for the IP address '([^']+)'",
+]
+offending_pattern = re.compile(
+    r'(?:Offending (?:key for IP|\S+ key)|Matching host key) in ([^:]+):(\d+)',
+    re.MULTILINE)
+
+commands = ['ssh', 'scp']
+
+
+def match(command, settings):
+    if not command.script:
+        return False
+    if not command.script.split()[0] in commands:
+        return False
+    if not any([re.findall(pattern, command.stderr) for pattern in patterns]):
+        return False
+    return True
+
+
+def remove_offending_keys(command, settings):
+    offending = offending_pattern.findall(command.stderr)
+    for filepath, lineno in offending:
+        with open(filepath, 'r') as fh:
+            lines = fh.readlines()
+            del lines[int(lineno) - 1]
+        with open(filepath, 'w') as fh:
+            fh.writelines(lines)
+
+
+def get_new_command(command, settings):
+    remove_offending_keys(command, settings)
+    return command.script

thefuck/rules/sudo.py

@@ -3,7 +3,10 @@ patterns = ['permission denied',
             'pkg: Insufficient privileges',
             'you cannot perform this operation unless you are root',
             'non-root users cannot',
-            'Operation not permitted']
+            'Operation not permitted',
+            'root privilege',
+            'This command has to be run under the root user.',
+            'You need to be root to perform this command.']
 
 
 def match(command, settings):
@@ -14,4 +17,4 @@ def match(command, settings):
 
 
 def get_new_command(command, settings):
-    return 'sudo {}'.format(command.script)
+    return u'sudo {}'.format(command.script)

thefuck/rules/switch_lang.py

@@ -0,0 +1,31 @@
+# -*- encoding: utf-8 -*-
+
+target_layout = '''qwertyuiop[]asdfghjkl;'zxcvbnm,./QWERTYUIOP{}ASDFGHJKL:"ZXCVBNM<>?'''
+
+source_layouts = [u'''йцукенгшщзхъфывапролджэячсмитьбю.ЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮ,''',
+                  u'''ضصثقفغعهخحجچشسیبلاتنمکگظطزرذدپو./ًٌٍَُِّْ][}{ؤئيإأآة»«:؛كٓژٰ‌ٔء><؟''',
+                  u''';ςερτυθιοπ[]ασδφγηξκλ΄ζχψωβνμ,./:΅ΕΡΤΥΘΙΟΠ{}ΑΣΔΦΓΗΞΚΛ¨"ΖΧΨΩΒΝΜ<>?''']
+
+
+def _get_matched_layout(command):
+    for source_layout in source_layouts:
+        if all([ch in source_layout or ch in '-_'
+                for ch in command.script.split(' ')[0]]):
+            return source_layout
+
+
+def match(command, settings):
+    return 'not found' in command.stderr and _get_matched_layout(command)
+
+
+def _switch(ch, layout):
+    if ch in layout:
+        return target_layout[layout.index(ch)]
+    else:
+        return ch
+
+
+def get_new_command(command, settings):
+    matched_layout = _get_matched_layout(command)
+    return ''.join(_switch(ch, matched_layout) for ch in command.script)
+

thefuck/utils.py

@@ -1,5 +1,7 @@
 from functools import wraps
 import os
+import six
+from thefuck.main import Command
 
 
 def which(program):
@@ -41,3 +43,22 @@ def wrap_settings(params):
             return fn(command, settings)
         return wrapper
     return decorator
+
+
+def sudo_support(fn):
+    """Removes sudo before calling fn and adds it after."""
+    @wraps(fn)
+    def wrapper(command, settings):
+        if not command.script.startswith('sudo '):
+            return fn(command, settings)
+
+        result = fn(Command(command.script[5:],
+                            command.stdout,
+                            command.stderr),
+                    settings)
+
+        if result and isinstance(result, six.string_types):
+            return u'sudo {}'.format(result)
+        else:
+            return result
+    return wrapper