Bump to 3.8

Treat overridden aliases in a better way

README.md

@@ -1,10 +1,10 @@
-# The Fuck [![Build Status](https://travis-ci.org/nvbn/thefuck.svg?branch=master)](https://travis-ci.org/nvbn/thefuck) 
+# The Fuck [![Version][version-badge]][version-link] [![Build Status][travis-badge]][travis-link] [![Windows Build Status][appveyor-badge]][appveyor-link] [![Coverage][coverage-badge]][coverage-link] [![MIT License][license-badge]](LICENSE.md)
 
 Magnificent app which corrects your previous console command,
 inspired by a [@liamosaur](https://twitter.com/liamosaur/)
 [tweet](https://twitter.com/liamosaur/status/506975850596536320).
 
-[![gif with examples](https://raw.githubusercontent.com/nvbn/thefuck/master/example.gif)](https://raw.githubusercontent.com/nvbn/thefuck/master/example.gif)
+[![gif with examples][examples-link]][examples-link]
 
 Few more examples:
 
@@ -52,7 +52,7 @@ Python 3.4.2 (default, Oct  8 2014, 13:08:17)
 git: 'brnch' is not a git command. See 'git --help'.
 
 Did you mean this?
-	branch
+    branch
 
 ➜ fuck
 git branch [enter/↑/↓/ctrl+c]
@@ -97,7 +97,7 @@ Reading package lists... Done
 ## Installation [*experimental*]
 
 On Ubuntu and OS X you can install `The Fuck` with installation script:
- 
+
 ```bash
 wget -O - https://raw.githubusercontent.com/nvbn/thefuck/master/install.sh | sh - && $0
 ```
@@ -107,7 +107,7 @@ wget -O - https://raw.githubusercontent.com/nvbn/thefuck/master/install.sh | sh
 Install `The Fuck` with `pip`:
 
 ```bash
-sudo pip install thefuck
+sudo -H pip install thefuck
 ```
 
 [Or using an OS package manager (OS X, Ubuntu, Arch).](https://github.com/nvbn/thefuck/wiki/Installation)
@@ -155,8 +155,9 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `dry` – fixes repetitions like `git git push`;
 * `fix_alt_space` – replaces Alt+Space with Space character;
 * `fix_file` – opens a file with an error in your `$EDITOR`;
-* `git_add` – fixes *"Did you forget to 'git add'?"*;
+* `git_add` – fixes *"pathspec 'foo' did not match any file(s) known to git."*;
 * `git_branch_delete` – changes `git branch -d` to `git branch -D`;
+* `git_branch_exists` – offers `git branch -d foo`, `git branch -D foo` or `git checkout foo` when creating a branch that already exists;
 * `git_branch_list` – catches `git branch list` in place of `git branch` and removes created branch;
 * `git_checkout` – fixes branch name or creates new branch;
 * `git_diff_staged` – adds `--staged` to previous `git diff` with unexpected output;
@@ -167,6 +168,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `git_pull_clone` – clones instead of pulling when the repo does not exist;
 * `git_push` – adds `--set-upstream origin $branch` to previous failed `git push`;
 * `git_push_pull` – runs `git pull` when `push` was rejected;
+* `git_rm_recursive` – adds `-r` when you try to `rm` a directory;
 * `git_remote_seturl_add` – runs `git remote add` when `git remote set_url` on nonexistant remote;
 * `git_stash` – stashes you local modifications before rebasing or switching branch;
 * `git_two_dashes` – adds a missing dash to commands like `git commit -amend` or `git rebase -continue`;
@@ -305,7 +307,7 @@ debug = False
 Or via environment variables:
 
 * `THEFUCK_RULES` – list of enabled rules, like `DEFAULT_RULES:rm_root` or `sudo:no_command`;
-* `THEFUCK_EXCLUDE_RULES` – list of disabled rules, like `git_pull:git_push`; 
+* `THEFUCK_EXCLUDE_RULES` – list of disabled rules, like `git_pull:git_push`;
 * `THEFUCK_REQUIRE_CONFIRMATION` – require confirmation before running new command, `true/false`;
 * `THEFUCK_WAIT_COMMAND` – max amount of time in seconds for getting previous command output;
 * `THEFUCK_NO_COLORS` – disable colored output, `true/false`;
@@ -357,3 +359,15 @@ sudo apt-get install pandoc
 
 ## License MIT
 Project License can be found [here](LICENSE.md).
+
+
+[version-badge]:   https://img.shields.io/pypi/v/thefuck.svg?label=version
+[version-link]:    https://pypi.python.org/pypi/thefuck/
+[travis-badge]:    https://img.shields.io/travis/nvbn/thefuck.svg
+[travis-link]:     https://travis-ci.org/nvbn/thefuck
+[appveyor-badge]:  https://img.shields.io/appveyor/ci/nvbn/thefuck.svg?label=windows%20build
+[appveyor-link]:   https://ci.appveyor.com/project/nvbn/thefuck
+[coverage-badge]:  https://img.shields.io/coveralls/nvbn/thefuck.svg
+[coverage-link]:   https://coveralls.io/github/nvbn/thefuck
+[license-badge]:   https://img.shields.io/badge/license-MIT-007EC7.svg
+[examples-link]:   https://raw.githubusercontent.com/nvbn/thefuck/master/example.gif

appveyor.yml

@@ -0,0 +1,22 @@
+build: false
+
+environment:
+  matrix:
+    - PYTHON: "C:/Python27"
+    - PYTHON: "C:/Python33"
+    - PYTHON: "C:/Python34"
+    - PYTHON: "C:/Python35"
+
+init:
+  - "ECHO %PYTHON%"
+  - ps: "ls C:/Python*"
+
+install:
+  - ps: (new-object net.webclient).DownloadFile('https://bootstrap.pypa.io/get-pip.py', 'C:/get-pip.py')
+  - "%PYTHON%/python.exe C:/get-pip.py"
+  - "%PYTHON%/Scripts/pip.exe install -U setuptools"
+  - "%PYTHON%/python.exe setup.py develop"
+  - "%PYTHON%/Scripts/pip.exe install -U -r requirements.txt"
+
+test_script:
+  - "%PYTHON%/Scripts/py.test.exe -sv"

setup.py

@@ -26,7 +26,7 @@ elif (3, 0) < version < (3, 3):
           ' ({}.{} detected).'.format(*version))
     sys.exit(-1)
 
-VERSION = '3.5'
+VERSION = '3.8'
 
 install_requires = ['psutil', 'colorama', 'six', 'decorator']
 extras_require = {':python_version<"3.4"': ['pathlib'],

tests/rules/test_git_add.py

@@ -4,36 +4,28 @@ from tests.utils import Command
 
 
 @pytest.fixture
-def did_not_match(target, did_you_forget=True):
-    error = ("error: pathspec '{}' did not match any "
-             "file(s) known to git.".format(target))
-    if did_you_forget:
-        error = ("{}\nDid you forget to 'git add'?'".format(error))
-    return error
+def stderr(target):
+    return ("error: pathspec '{}' did not match any "
+            'file(s) known to git.'.format(target))
 
 
-@pytest.mark.parametrize('command', [
-    Command(script='git submodule update unknown',
-            stderr=did_not_match('unknown')),
-    Command(script='git commit unknown',
-            stderr=did_not_match('unknown'))])  # Older versions of Git
-def test_match(command):
-    assert match(command)
+@pytest.mark.parametrize('script, target', [
+    ('git submodule update unknown', 'unknown'),
+    ('git commit unknown', 'unknown')])
+def test_match(stderr, script, target):
+    assert match(Command(script=script, stderr=stderr))
 
 
-@pytest.mark.parametrize('command', [
-    Command(script='git submodule update known', stderr=('')),
-    Command(script='git commit known', stderr=('')),
-    Command(script='git commit unknown',  # Newer versions of Git
-            stderr=did_not_match('unknown', False))])
-def test_not_match(command):
-    assert not match(command)
+@pytest.mark.parametrize('script', [
+    'git submodule update known', 'git commit known'])
+def test_not_match(script):
+    assert not match(Command(script=script, stderr=''))
 
 
-@pytest.mark.parametrize('command, new_command', [
-    (Command('git submodule update unknown', stderr=did_not_match('unknown')),
+@pytest.mark.parametrize('script, target, new_command', [
+    ('git submodule update unknown', 'unknown',
      'git add -- unknown && git submodule update unknown'),
-    (Command('git commit unknown', stderr=did_not_match('unknown')),  # Old Git
+    ('git commit unknown', 'unknown',
      'git add -- unknown && git commit unknown')])
-def test_get_new_command(command, new_command):
-    assert get_new_command(command) == new_command
+def test_get_new_command(stderr, script, target, new_command):
+    assert get_new_command(Command(script=script, stderr=stderr)) == new_command

tests/rules/test_git_branch_exists.py

@@ -0,0 +1,33 @@
+import pytest
+from thefuck.rules.git_branch_exists import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr(branch_name):
+    return "fatal: A branch named '{}' already exists.".format(branch_name)
+
+
+@pytest.fixture
+def new_command(branch_name):
+    return [cmd.format(branch_name) for cmd in [
+        'git branch -d {0} && git branch {0}',
+        'git branch -D {0} && git branch {0}', 'git checkout {0}']]
+
+
+@pytest.mark.parametrize('script, branch_name', [
+    ('git branch foo', 'foo'),
+    ('git branch bar', 'bar')])
+def test_match(stderr, script, branch_name):
+    assert match(Command(script=script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script', ['git branch foo', 'git branch bar'])
+def test_not_match(script):
+    assert not match(Command(script=script, stderr=''))
+
+
+@pytest.mark.parametrize('script, branch_name, ', [
+    ('git branch foo', 'foo'), ('git branch bar', 'bar')])
+def test_get_new_command(stderr, new_command, script, branch_name):
+    assert get_new_command(Command(script=script, stderr=stderr)) == new_command

tests/rules/test_git_rm_recursive.py

@@ -0,0 +1,27 @@
+import pytest
+from thefuck.rules.git_rm_recursive import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr(target):
+    return "fatal: not removing '{}' recursively without -r".format(target)
+
+
+@pytest.mark.parametrize('script, target', [
+    ('git rm foo', 'foo'),
+    ('git rm foo bar', 'foo bar')])
+def test_match(stderr, script, target):
+    assert match(Command(script=script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script', ['git rm foo', 'git rm foo bar'])
+def test_not_match(script):
+    assert not match(Command(script=script, stderr=''))
+
+
+@pytest.mark.parametrize('script, target, new_command', [
+    ('git rm foo', 'foo', 'git rm -r foo'),
+    ('git rm foo bar', 'foo bar', 'git rm -r foo bar')])
+def test_get_new_command(stderr, script, target, new_command):
+    assert get_new_command(Command(script=script, stderr=stderr)) == new_command

tests/rules/test_history.py

@@ -3,38 +3,23 @@ from thefuck.rules.history import match, get_new_command
 from tests.utils import Command
 
 
-@pytest.fixture
-def history(mocker):
-    return mocker.patch('thefuck.shells.shell.get_history',
-                        return_value=['le cat', 'fuck', 'ls cat',
-                                      'diff x', 'nocommand x'])
+@pytest.fixture(autouse=True)
+def history_without_current(mocker):
+    return mocker.patch(
+        'thefuck.rules.history.get_valid_history_without_current',
+        return_value=['ls cat', 'diff x'])
 
 
-@pytest.fixture
-def alias(mocker):
-    return mocker.patch('thefuck.rules.history.get_alias',
-                        return_value='fuck')
-
-
-@pytest.fixture
-def callables(mocker):
-    return mocker.patch('thefuck.rules.history.get_all_executables',
-                        return_value=['diff', 'ls'])
-
-
-@pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
 @pytest.mark.parametrize('script', ['ls cet', 'daff x'])
 def test_match(script):
     assert match(Command(script=script))
 
 
-@pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
 @pytest.mark.parametrize('script', ['apt-get', 'nocommand y'])
 def test_not_match(script):
     assert not match(Command(script=script))
 
 
-@pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
 @pytest.mark.parametrize('script, result', [
     ('ls cet', 'ls cat'),
     ('daff x', 'diff x')])

tests/rules/test_no_command.py

@@ -6,22 +6,37 @@ from tests.utils import Command
 @pytest.fixture(autouse=True)
 def get_all_executables(mocker):
     mocker.patch('thefuck.rules.no_command.get_all_executables',
-                 return_value=['vim', 'apt-get', 'fsck'])
+                 return_value=['vim', 'fsck', 'git', 'go'])
+
+
+@pytest.fixture(autouse=True)
+def history_without_current(mocker):
+    return mocker.patch(
+        'thefuck.rules.no_command.get_valid_history_without_current',
+        return_value=['git commit'])
 
 
 @pytest.mark.usefixtures('no_memoize')
-def test_match():
-    assert match(Command(stderr='vom: not found', script='vom file.py'))
-    assert match(Command(stderr='fucck: not found', script='fucck'))
-    assert not match(Command(stderr='qweqwe: not found', script='qweqwe'))
-    assert not match(Command(stderr='some text', script='vom file.py'))
+@pytest.mark.parametrize('script, stderr', [
+    ('vom file.py', 'vom: not found'),
+    ('fucck', 'fucck: not found'),
+    ('got commit', 'got: command not found')])
+def test_match(script, stderr):
+    assert match(Command(script, stderr=stderr))
 
 
 @pytest.mark.usefixtures('no_memoize')
-def test_get_new_command():
-    assert get_new_command(
-        Command(stderr='vom: not found',
-                script='vom file.py')) == ['vim file.py']
-    assert get_new_command(
-        Command(stderr='fucck: not found',
-                script='fucck')) == ['fsck']
+@pytest.mark.parametrize('script, stderr', [
+    ('qweqwe', 'qweqwe: not found'),
+    ('vom file.py', 'some text')])
+def test_not_match(script, stderr):
+    assert not match(Command(script, stderr=stderr))
+
+
+@pytest.mark.usefixtures('no_memoize')
+@pytest.mark.parametrize('script, result', [
+    ('vom file.py', ['vim file.py']),
+    ('fucck', ['fsck']),
+    ('got commit', ['git commit', 'go commit'])])
+def test_get_new_command(script, result):
+    assert get_new_command(Command(script)) == result

tests/rules/test_ssh_known_host.py

@@ -52,6 +52,7 @@ def test_match(ssh_error):
     assert not match(Command('ssh'))
 
 
+@pytest.mark.skipif(os.name == 'nt', reason='Skip if testing on Windows')
 def test_side_effect(ssh_error):
     errormsg, path, reset, known_hosts = ssh_error
     command = Command('ssh user@host', stderr=errormsg)

tests/shells/test_fish.py

@@ -19,14 +19,18 @@ class TestFish(object):
         return mock
 
     @pytest.fixture
-    def environ(self, monkeypatch):
-        data = {'TF_OVERRIDDEN_ALIASES': 'cd, ls, man, open'}
-        monkeypatch.setattr('thefuck.shells.fish.os.environ', data)
-        return data
+    def os_environ(self, monkeypatch, key, value):
+        monkeypatch.setattr('os.environ', {key: value})
 
-    @pytest.mark.usefixture('environ')
-    def test_get_overridden_aliases(self, shell, environ):
-        assert shell._get_overridden_aliases() == ['cd', 'ls', 'man', 'open']
+    @pytest.mark.parametrize('key, value', [
+        ('TF_OVERRIDDEN_ALIASES', 'cut,git,sed'),  # legacy
+        ('THEFUCK_OVERRIDDEN_ALIASES', 'cut,git,sed'),
+        ('THEFUCK_OVERRIDDEN_ALIASES', 'cut, git, sed'),
+        ('THEFUCK_OVERRIDDEN_ALIASES', ' cut,\tgit,sed\n'),
+        ('THEFUCK_OVERRIDDEN_ALIASES', '\ncut,\n\ngit,\tsed\r')])
+    def test_get_overridden_aliases(self, shell, os_environ):
+        assert shell._get_overridden_aliases() == {'cd', 'cut', 'git', 'grep',
+                                                   'ls', 'man', 'open', 'sed'}
 
     @pytest.mark.parametrize('before, after', [
         ('cd', 'cd'),

tests/shells/test_powershell.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+from thefuck.shells import Powershell
+
+
+@pytest.mark.usefixtures('isfile', 'no_memoize', 'no_cache')
+class TestPowershell(object):
+    @pytest.fixture
+    def shell(self):
+        return Powershell()
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == '(ls) -and (cd)'
+
+    def test_app_alias(self, shell):
+        assert 'function fuck' in shell.app_alias('fuck')
+        assert 'function FUCK' in shell.app_alias('FUCK')
+        assert 'thefuck' in shell.app_alias('fuck')

tests/test_corrector.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 import pytest
-from pathlib import PosixPath
+from pathlib import Path
 from thefuck import corrector, const
 from tests.utils import Rule, Command, CorrectedCommand
 from thefuck.corrector import get_corrected_commands, organize_commands
@@ -30,7 +30,7 @@ class TestGetRules(object):
         (['git.py', 'bash.py'], ['git'], ['git'], [])])
     def test_get_rules(self, glob, settings, paths, conf_rules, exclude_rules,
                        loaded_rules):
-        glob([PosixPath(path) for path in paths])
+        glob([Path(path) for path in paths])
         settings.update(rules=conf_rules,
                         priority={},
                         exclude_rules=exclude_rules)

tests/test_types.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 
+import os
 from subprocess import PIPE
 from mock import Mock
 from pathlib import Path
@@ -39,9 +40,10 @@ class TestRule(object):
                               enabled_by_default=True,
                               priority=900,
                               requires_output=True))
-        assert Rule.from_path(Path('/rules/bash.py')) \
+        rule_path = os.path.join(os.sep, 'rules', 'bash.py')
+        assert Rule.from_path(Path(rule_path)) \
                == Rule('bash', match, get_new_command, priority=900)
-        load_source.assert_called_once_with('bash', '/rules/bash.py')
+        load_source.assert_called_once_with('bash', rule_path)
 
     @pytest.mark.parametrize('rules, exclude_rules, rule, is_enabled', [
         (const.DEFAULT_RULES, [], Rule('git', enabled_by_default=True), True),
@@ -110,6 +112,7 @@ class TestCommand(object):
             'apt-get search vim', 'stdout', 'stderr')
         Popen.assert_called_once_with('apt-get search vim',
                                       shell=True,
+                                      stdin=PIPE,
                                       stdout=PIPE,
                                       stderr=PIPE,
                                       env={})

tests/test_utils.py

@@ -3,7 +3,8 @@ from mock import Mock
 import six
 from thefuck.utils import default_settings, \
     memoize, get_closest, get_all_executables, replace_argument, \
-    get_all_matched_commands, is_app, for_app, cache, compatibility_call
+    get_all_matched_commands, is_app, for_app, cache, compatibility_call, \
+    get_valid_history_without_current
 from tests.utils import Command
 
 
@@ -229,3 +230,29 @@ class TestCompatibilityCall(object):
             return True
 
         assert compatibility_call(side_effect, Command(), Command())
+
+
+class TestGetValidHistoryWithoutCurrent(object):
+    @pytest.fixture(autouse=True)
+    def history(self, mocker):
+        return mocker.patch('thefuck.shells.shell.get_history',
+                            return_value=['le cat', 'fuck', 'ls cat',
+                                          'diff x', 'nocommand x'])
+
+    @pytest.fixture(autouse=True)
+    def alias(self, mocker):
+        return mocker.patch('thefuck.utils.get_alias',
+                            return_value='fuck')
+
+    @pytest.fixture(autouse=True)
+    def callables(self, mocker):
+        return mocker.patch('thefuck.utils.get_all_executables',
+                            return_value=['diff', 'ls'])
+
+    @pytest.mark.parametrize('script, result', [
+        ('le cat', ['ls cat', 'diff x']),
+        ('diff x', ['ls cat']),
+        ('fuck', ['ls cat', 'diff x'])])
+    def test_get_valid_history_without_current(self, script, result):
+        command = Command(script=script)
+        assert get_valid_history_without_current(command) == result

thefuck/rules/git_add.py

@@ -5,15 +5,14 @@ from thefuck.specific.git import git_support
 
 @git_support
 def match(command):
-    return ('did not match any file(s) known to git.' in command.stderr
-            and "Did you forget to 'git add'?" in command.stderr)
+    return 'did not match any file(s) known to git.' in command.stderr
 
 
 @git_support
 def get_new_command(command):
     missing_file = re.findall(
-            r"error: pathspec '([^']*)' "
-            r"did not match any file\(s\) known to git.", command.stderr)[0]
+        r"error: pathspec '([^']*)' "
+        r'did not match any file\(s\) known to git.', command.stderr)[0]
 
     formatme = shell.and_('git add -- {}', '{}')
     return formatme.format(missing_file, command.script)

thefuck/rules/git_branch_exists.py

@@ -0,0 +1,23 @@
+import re
+from thefuck.shells import shell
+from thefuck.specific.git import git_support
+from thefuck.utils import eager
+
+
+@git_support
+def match(command):
+    return ('branch' in command.script
+            and "fatal: A branch named '" in command.stderr
+            and " already exists." in command.stderr)
+
+
+@git_support
+@eager
+def get_new_command(command):
+    branch_name = re.findall(
+        r"fatal: A branch named '([^']*)' already exists.", command.stderr)[0]
+    new_command_templates = [['git branch -d {0}', 'git branch {0}'],
+                             ['git branch -D {0}', 'git branch {0}'],
+                             ['git checkout {0}']]
+    for new_command_template in new_command_templates:
+        yield shell.and_(*new_command_template).format(branch_name)

thefuck/rules/git_rm_recursive.py

@@ -0,0 +1,15 @@
+from thefuck.specific.git import git_support
+
+
+@git_support
+def match(command):
+    return (' rm ' in command.script
+            and "fatal: not removing '" in command.stderr
+            and "' recursively without -r" in command.stderr)
+
+
+@git_support
+def get_new_command(command):
+    index = command.script_parts.index('rm') + 1
+    command.script_parts.insert(index, '-r')
+    return u' '.join(command.script_parts)

thefuck/rules/history.py

@@ -1,37 +1,15 @@
 from difflib import get_close_matches
-from thefuck.shells import shell
-from thefuck.utils import get_closest, memoize, get_all_executables, get_alias
-
-
-def _not_corrected(history, tf_alias):
-    """Returns all lines from history except that comes before `fuck`."""
-    previous = None
-    for line in history:
-        if previous is not None and line != tf_alias:
-            yield previous
-        previous = line
-    if history:
-        yield history[-1]
-
-
-@memoize
-def _history_of_exists_without_current(command):
-    history = shell.get_history()
-    tf_alias = get_alias()
-    executables = get_all_executables()
-    return [line for line in _not_corrected(history, tf_alias)
-            if not line.startswith(tf_alias) and not line == command.script
-            and line.split(' ')[0] in executables]
+from thefuck.utils import get_closest, get_valid_history_without_current
 
 
 def match(command):
     return len(get_close_matches(command.script,
-                                 _history_of_exists_without_current(command)))
+                                 get_valid_history_without_current(command)))
 
 
 def get_new_command(command):
     return get_closest(command.script,
-                       _history_of_exists_without_current(command))
+                       get_valid_history_without_current(command))
 
 
 priority = 9999

thefuck/rules/no_command.py

@@ -1,5 +1,6 @@
 from difflib import get_close_matches
-from thefuck.utils import get_all_executables
+from thefuck.utils import get_all_executables, \
+    get_valid_history_without_current, get_closest
 from thefuck.specific.sudo import sudo_support
 
 
@@ -11,10 +12,29 @@ def match(command):
                                        get_all_executables())))
 
 
+def _get_used_executables(command):
+    for script in get_valid_history_without_current(command):
+        yield script.split(' ')[0]
+
+
 @sudo_support
 def get_new_command(command):
     old_command = command.script_parts[0]
-    new_cmds = get_close_matches(old_command, get_all_executables(), cutoff=0.1)
+
+    # One from history:
+    already_used = get_closest(
+        old_command, _get_used_executables(command),
+        fallback_to_first=False)
+    if already_used:
+        new_cmds = [already_used]
+    else:
+        new_cmds = []
+
+    # Other from all executables:
+    new_cmds += [cmd for cmd in get_close_matches(old_command,
+                                                  get_all_executables())
+                 if cmd not in new_cmds]
+
     return [' '.join([new_command] + command.script_parts[1:])
             for new_command in new_cmds]
 

thefuck/shells/__init__.py

@@ -9,20 +9,37 @@ from .fish import Fish
 from .generic import Generic
 from .tcsh import Tcsh
 from .zsh import Zsh
+from .powershell import Powershell
 
 shells = {'bash': Bash,
           'fish': Fish,
           'zsh': Zsh,
           'csh': Tcsh,
-          'tcsh': Tcsh}
+          'tcsh': Tcsh,
+          'powershell': Powershell}
 
 
 def _get_shell():
-    try:
-        shell_name = Process(os.getpid()).parent().name()
-    except TypeError:
-        shell_name = Process(os.getpid()).parent.name
-    return shells.get(shell_name, Generic)()
+    proc = Process(os.getpid())
+
+    while (proc is not None):
+        name = None
+        try:
+            name = proc.name()
+        except TypeError:
+            name = proc.name
+
+        name = os.path.splitext(name)[0]
+
+        if name in shells:
+            return shells[name]()
+
+        try:
+            proc = proc.parent()
+        except TypeError:
+            proc = proc.parent
+
+    return Generic()
 
 
 shell = _get_shell()

thefuck/shells/fish.py

@@ -7,11 +7,12 @@ from .generic import Generic
 
 class Fish(Generic):
     def _get_overridden_aliases(self):
-        overridden_aliases = os.environ.get('TF_OVERRIDDEN_ALIASES', '').strip()
-        if overridden_aliases:
-            return [alias.strip() for alias in overridden_aliases.split(',')]
-        else:
-            return ['cd', 'grep', 'ls', 'man', 'open']
+        overridden = os.environ.get('THEFUCK_OVERRIDDEN_ALIASES',
+                                    os.environ.get('TF_OVERRIDDEN_ALIASES', ''))
+        default = {'cd', 'grep', 'ls', 'man', 'open'}
+        for alias in overridden.split(','):
+            default.add(alias.strip())
+        return default
 
     def app_alias(self, fuck):
         # It is VERY important to have the variables declared WITHIN the alias

thefuck/shells/powershell.py

@@ -0,0 +1,18 @@
+from .generic import Generic
+
+
+class Powershell(Generic):
+    def app_alias(self, fuck):
+        return 'function ' + fuck + ' { \n' \
+               '    $fuck = $(thefuck (Get-History -Count 1).CommandLine)\n' \
+               '    if (-not [string]::IsNullOrWhiteSpace($fuck)) {\n' \
+               '        if ($fuck.StartsWith("echo")) { $fuck = $fuck.Substring(5) }\n' \
+               '        else { iex "$fuck" }\n' \
+               '    }\n' \
+               '}\n'
+
+    def and_(self, *commands):
+        return u' -and '.join('({0})'.format(c) for c in commands)
+
+    def how_to_configure(self):
+        return 'iex "thefuck --alias"', '$profile'

thefuck/system/win32.py

@@ -1,3 +1,4 @@
+import os
 import sys
 import msvcrt
 import win_unicode_console
@@ -16,10 +17,11 @@ def get_key():
         ch = msvcrt.getch()  # second call returns the actual key code
 
     if ch == b'\x03':
-        raise const.KEY_CTRL_C
+        return const.KEY_CTRL_C
     if ch == b'H':
         return const.KEY_UP
     if ch == b'P':
         return const.KEY_DOWN
 
-    return ch.decode(sys.stdout.encoding)
+    encoding = sys.stdout.encoding or os.environ.get('PYTHONIOENCODING', 'utf-8')
+    return ch.decode(encoding)

thefuck/types.py

@@ -114,7 +114,7 @@ class Command(object):
         env.update(settings.env)
 
         with logs.debug_time(u'Call: {}; with env: {};'.format(script, env)):
-            result = Popen(script, shell=True, stdout=PIPE, stderr=PIPE, env=env)
+            result = Popen(script, shell=True, stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env)
             if cls._wait_output(result):
                 stdout = result.stdout.read().decode('utf-8')
                 stderr = result.stderr.read().decode('utf-8')

thefuck/utils.py

@@ -269,3 +269,24 @@ def get_installation_info():
 
 def get_alias():
     return os.environ.get('TF_ALIAS', 'fuck')
+
+
+@memoize
+def get_valid_history_without_current(command):
+    def _not_corrected(history, tf_alias):
+        """Returns all lines from history except that comes before `fuck`."""
+        previous = None
+        for line in history:
+            if previous is not None and line != tf_alias:
+                yield previous
+            previous = line
+        if history:
+            yield history[-1]
+
+    from thefuck.shells import shell
+    history = shell.get_history()
+    tf_alias = get_alias()
+    executables = get_all_executables()
+    return [line for line in _not_corrected(history, tf_alias)
+            if not line.startswith(tf_alias) and not line == command.script
+            and line.split(' ')[0] in executables]