Bump to 3.9

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

.travis.yml

@@ -17,8 +17,9 @@ addons:
       - pandoc
       - git
 install:
-  - pip install coveralls
-  - pip install -r requirements.txt
+  - pip install -U pip
+  - pip install -U coveralls
+  - pip install -Ur requirements.txt
   - python setup.py develop
   - rm -rf build
 script:

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)
@@ -144,6 +144,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `cd_correction` – spellchecks and correct failed cd commands;
 * `cd_mkdir` – creates directories before cd'ing into them;
 * `cd_parent` – changes `cd..` to `cd ..`;
+* `chmod_x` – add execution bit;
 * `composer_not_command` – fixes composer command name;
 * `cp_omitting_directory` – adds `-a` when you `cp` directory;
 * `cpp11` – adds missing `-std=c++11` to `g++` or `clang++`;
@@ -155,20 +156,25 @@ 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;
 * `git_fix_stash` – fixes `git stash` commands (misspelled subcommand and missing `save`);
+* `git_help_aliased` &ndash; fixes `git help <alias>` commands replacing <alias> with the aliased command;
 * `git_not_command` &ndash; fixes wrong git commands like `git brnch`;
 * `git_pull` &ndash; sets upstream before executing previous `git pull`;
 * `git_pull_clone` &ndash; clones instead of pulling when the repo does not exist;
 * `git_push` &ndash; adds `--set-upstream origin $branch` to previous failed `git push`;
 * `git_push_pull` &ndash; runs `git pull` when `push` was rejected;
+* `git_rm_recursive` &ndash; adds `-r` when you try to `rm` a directory;
+* `git_remote_seturl_add` &ndash; runs `git remote add` when `git remote set_url` on nonexistant remote;
 * `git_stash` &ndash; stashes you local modifications before rebasing or switching branch;
 * `git_two_dashes` &ndash; adds a missing dash to commands like `git commit -amend` or `git rebase -continue`;
-* `go_run` &ndash; appends `.go` extension when compiling/running Go programs
+* `go_run` &ndash; appends `.go` extension when compiling/running Go programs;
+* `grep_arguments_order` &ndash; fixes grep arguments order for situations like `grep -lir . test`;
 * `grep_recursive` &ndash; adds `-r` when you trying to `grep` directory;
 * `gulp_not_task` &ndash; fixes misspelled `gulp` tasks;
 * `has_exists_script` &ndash; prepends `./` when script/binary exists;
@@ -177,6 +183,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `java` &ndash; removes `.java` extension when running Java programs;
 * `javac` &ndash; appends missing `.java` when compiling Java files;
 * `lein_not_task` &ndash; fixes wrong `lein` tasks like `lein rpl`;
+* `ln_no_hard_link` &ndash; catches hard link creation on directories, suggest symbolic link;
 * `ls_lah` &ndash; adds `-lah` to `ls`;
 * `man` &ndash; changes manual section;
 * `man_no_space` &ndash; fixes man commands without spaces, for example `mandiff`;
@@ -184,6 +191,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `mkdir_p` &ndash; adds `-p` when you trying to create directory without parent;
 * `mvn_no_command` &ndash; adds `clean package` to `mvn`;
 * `mvn_unknown_lifecycle_phase` &ndash; fixes misspelled lifecycle phases with `mvn`;
+* `npm_wrong_command` &ndash; fixes wrong npm commands like `npm urgrade`;
 * `no_command` &ndash; fixes wrong console commands, for example `vom/vim`;
 * `no_such_file` &ndash; creates missing directories with `mv` and `cp` commands;
 * `open` &ndash; prepends `http` to address passed to `open`;
@@ -214,6 +222,7 @@ Enabled by default only on specific platforms:
 * `apt_invalid_operation` &ndash; fixes invalid `apt` and `apt-get` calls, like `apt-get isntall vim`;
 * `brew_install` &ndash; fixes formula name for `brew install`;
 * `brew_unknown_command` &ndash; fixes wrong brew commands, for example `brew docto/brew doctor`;
+* `brew_update_formula` &ndash; turns `brew update <formula>` into `brew upgrade <formula>`;
 * `brew_upgrade` &ndash; appends `--all` to `brew upgrade` as per Homebrew's new behaviour;
 * `pacman` &ndash; installs app with `pacman` if it is not installed (uses `yaourt` if available);
 * `pacman_not_found` &ndash; fixes package name with `pacman` or `yaourt`.
@@ -300,7 +309,7 @@ debug = False
 Or via environment variables:
 
 * `THEFUCK_RULES` &ndash; list of enabled rules, like `DEFAULT_RULES:rm_root` or `sudo:no_command`;
-* `THEFUCK_EXCLUDE_RULES` &ndash; list of disabled rules, like `git_pull:git_push`; 
+* `THEFUCK_EXCLUDE_RULES` &ndash; list of disabled rules, like `git_pull:git_push`;
 * `THEFUCK_REQUIRE_CONFIRMATION` &ndash; require confirmation before running new command, `true/false`;
 * `THEFUCK_WAIT_COMMAND` &ndash; max amount of time in seconds for getting previous command output;
 * `THEFUCK_NO_COLORS` &ndash; disable colored output, `true/false`;
@@ -352,3 +361,15 @@ 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"

install.sh

@@ -15,7 +15,7 @@ install_thefuck () {
         sudo apt-get update -yy
         sudo apt-get install -yy python-pip python-dev command-not-found python-gdbm
 
-        if [[ -n $(apt-cache search python-commandnotfound) ]]; then
+        if [ -n "$(apt-cache search python-commandnotfound)" ]; then
             # In case of different python versions:
             sudo apt-get install -yy python-commandnotfound
         fi

requirements.txt

@@ -1,3 +1,4 @@
+pip
 pytest
 mock
 pytest-mock

setup.py

@@ -1,8 +1,14 @@
 #!/usr/bin/env python
 from setuptools import setup, find_packages
+import pip
 import sys
 import os
 
+if int(pip.__version__.split('.')[0]) < 6:
+    print('pip older than 6.0 not supported, please upgrade pip with:\n\n'
+          '    pip install -U pip')
+    sys.exit(-1)
+
 if os.environ.get('CONVERT_README'):
     import pypandoc
 
@@ -20,7 +26,7 @@ elif (3, 0) < version < (3, 3):
           ' ({}.{} detected).'.format(*version))
     sys.exit(-1)
 
-VERSION = '3.3'
+VERSION = '3.9'
 
 install_requires = ['psutil', 'colorama', 'six', 'decorator']
 extras_require = {':python_version<"3.4"': ['pathlib'],
@@ -35,7 +41,7 @@ setup(name='thefuck',
       url='https://github.com/nvbn/thefuck',
       license='MIT',
       packages=find_packages(exclude=['ez_setup', 'examples',
-                                      'tests', 'release']),
+                                      'tests', 'tests.*', 'release']),
       include_package_data=True,
       zip_safe=False,
       install_requires=install_requires,

tests/conftest.py

@@ -1,6 +1,9 @@
 from pathlib import Path
 import pytest
-from thefuck import conf
+from thefuck import shells
+from thefuck import conf, const
+
+shells.shell = shells.Generic()
 
 
 def pytest_addoption(parser):
@@ -19,7 +22,7 @@ def no_memoize(monkeypatch):
 def settings(request):
     def _reset_settings():
         conf.settings.clear()
-        conf.settings.update(conf.DEFAULT_SETTINGS)
+        conf.settings.update(const.DEFAULT_SETTINGS)
 
     request.addfinalizer(_reset_settings)
     conf.settings.user_dir = Path('~/.thefuck')
@@ -46,3 +49,14 @@ def functional(request):
 @pytest.fixture
 def source_root():
     return Path(__file__).parent.parent.resolve()
+
+
+@pytest.fixture
+def set_shell(monkeypatch, request):
+    def _set(cls):
+        shell = cls()
+        monkeypatch.setattr('thefuck.shells.shell', shell)
+        request.addfinalizer()
+        return shell
+
+    return _set

tests/functional/test_zsh.py

@@ -49,7 +49,7 @@ def test_select_command_with_arrows(proc, TIMEOUT):
 
 
 @pytest.mark.functional
-@pytest.mark.once_without_docker
+@pytest.mark.skip_without_docker
 def test_refuse_with_confirmation(proc, TIMEOUT):
     refuse_with_confirmation(proc, TIMEOUT)
     history_not_changed(proc, TIMEOUT)

tests/rules/conftest.py

@@ -1,6 +0,0 @@
-import pytest
-
-
-@pytest.fixture(autouse=True)
-def generic_shell(monkeypatch):
-    monkeypatch.setattr('thefuck.shells.and_', lambda *x: u' && '.join(x))

tests/rules/test_apt_get.py

@@ -29,12 +29,27 @@ def test_match_mocked(cmdnf_mock, command, return_value):
     assert get_packages.called
 
 
+# python-commandnotfound is available in ubuntu 14.04+
+@pytest.mark.skipif(not getattr(apt_get, 'enabled_by_default', True),
+                    reason='Skip if python-commandnotfound is not available')
 @pytest.mark.parametrize('command', [
+    Command(script='a_bad_cmd', stderr='a_bad_cmd: command not found'),
     Command(script='vim', stderr=''), Command()])
 def test_not_match(command):
     assert not match(command)
 
 
+@pytest.mark.parametrize('command, return_value', [
+    (Command(script='a_bad_cmd', stderr='a_bad_cmd: command not found'), []),
+    (Command(script='vim', stderr=''), []), (Command(), [])])
+@patch('thefuck.rules.apt_get.CommandNotFound', create=True)
+@patch.multiple(apt_get, create=True, apt_get='apt_get')
+def test_not_match_mocked(cmdnf_mock, command, return_value):
+    get_packages = Mock(return_value=return_value)
+    cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
+    assert not match(command)
+
+
 # python-commandnotfound is available in ubuntu 14.04+
 @pytest.mark.skipif(not getattr(apt_get, 'enabled_by_default', True),
                     reason='Skip if python-commandnotfound is not available')

tests/rules/test_brew_update_formula.py

@@ -0,0 +1,30 @@
+import pytest
+from tests.utils import Command
+from thefuck.rules.brew_update_formula import get_new_command, match
+
+
+@pytest.fixture
+def stderr():
+    return ("Error: This command updates brew itself, and does not take formula"
+            " names.\nUse 'brew upgrade <formula>'.")
+
+
+@pytest.fixture
+def new_command(formula):
+    return 'brew upgrade {}'.format(formula)
+
+
+@pytest.mark.parametrize('script', ['brew update foo', 'brew update bar zap'])
+def test_match(stderr, script):
+    assert match(Command(script=script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script', ['brew upgrade foo', 'brew update'])
+def test_not_match(script):
+    assert not match(Command(script=script, stderr=''))
+
+
+@pytest.mark.parametrize('script, formula, ', [
+    ('brew update foo', 'foo'), ('brew update bar zap', 'bar zap')])
+def test_get_new_command(stderr, new_command, script, formula):
+    assert get_new_command(Command(script=script, stderr=stderr)) == new_command

tests/rules/test_chmod_x.py

@@ -0,0 +1,39 @@
+import pytest
+from tests.utils import Command
+from thefuck.rules.chmod_x import match, get_new_command
+
+
+@pytest.fixture
+def file_exists(mocker):
+    return mocker.patch('os.path.exists', return_value=True)
+
+
+@pytest.fixture
+def file_access(mocker):
+    return mocker.patch('os.access', return_value=False)
+
+
+@pytest.mark.usefixtures('file_exists', 'file_access')
+@pytest.mark.parametrize('script, stderr', [
+    ('./gradlew build', 'gradlew: Permission denied'),
+    ('./install.sh --help', 'install.sh: permission denied')])
+def test_match(script, stderr):
+    assert match(Command(script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script, stderr, exists, callable', [
+    ('./gradlew build', 'gradlew: Permission denied', True, True),
+    ('./gradlew build', 'gradlew: Permission denied', False, False),
+    ('./gradlew build', 'gradlew: error', True, False),
+    ('gradlew build', 'gradlew: Permission denied', True, False)])
+def test_not_match(file_exists, file_access, script, stderr, exists, callable):
+    file_exists.return_value = exists
+    file_access.return_value = callable
+    assert not match(Command(script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script, result', [
+    ('./gradlew build', 'chmod +x gradlew && ./gradlew build'),
+    ('./install.sh --help', 'chmod +x install.sh && ./install.sh --help')])
+def test_get_new_command(script, result):
+    assert get_new_command(Command(script)) == result

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_branch_list.py

@@ -1,5 +1,5 @@
-from thefuck import shells
 from thefuck.rules.git_branch_list import match, get_new_command
+from thefuck.shells import shell
 from tests.utils import Command
 
 
@@ -16,4 +16,4 @@ def test_not_match():
 
 def test_get_new_command():
     assert (get_new_command(Command('git branch list')) ==
-            shells.and_('git branch --delete list', 'git branch'))
+            shell.and_('git branch --delete list', 'git branch'))

tests/rules/test_git_checkout.py

@@ -1,5 +1,6 @@
 import pytest
-from thefuck.rules.git_checkout import match, get_new_command
+from io import BytesIO
+from thefuck.rules.git_checkout import match, get_branches, get_new_command
 from tests.utils import Command
 
 
@@ -13,8 +14,10 @@ def did_not_match(target, did_you_forget=False):
 
 
 @pytest.fixture
-def get_branches(mocker):
-    return mocker.patch('thefuck.rules.git_checkout.get_branches')
+def git_branch(mocker, branches):
+    mock = mocker.patch('subprocess.Popen')
+    mock.return_value.stdout = BytesIO(branches)
+    return mock
 
 
 @pytest.mark.parametrize('command', [
@@ -33,21 +36,34 @@ def test_not_match(command):
     assert not match(command)
 
 
+@pytest.mark.parametrize('branches, branch_list', [
+    (b'', []),
+    (b'* master', ['master']),
+    (b'  remotes/origin/master', ['master']),
+    (b'  just-another-branch', ['just-another-branch']),
+    (b'* master\n  just-another-branch', ['master', 'just-another-branch']),
+    (b'* master\n  remotes/origin/master\n  just-another-branch',
+     ['master', 'master', 'just-another-branch'])])
+def test_get_branches(branches, branch_list, git_branch):
+    git_branch(branches)
+    assert list(get_branches()) == branch_list
+
+
 @pytest.mark.parametrize('branches, command, new_command', [
-    ([],
+    (b'',
      Command(script='git checkout unknown', stderr=did_not_match('unknown')),
      'git branch unknown && git checkout unknown'),
-    ([],
+    (b'',
      Command('git commit unknown', stderr=did_not_match('unknown')),
      'git branch unknown && git commit unknown'),
-    (['test-random-branch-123'],
+    (b'  test-random-branch-123',
      Command(script='git checkout tst-rdm-brnch-123',
              stderr=did_not_match('tst-rdm-brnch-123')),
      'git checkout test-random-branch-123'),
-    (['test-random-branch-123'],
+    (b'  test-random-branch-123',
      Command(script='git commit tst-rdm-brnch-123',
              stderr=did_not_match('tst-rdm-brnch-123')),
      'git commit test-random-branch-123')])
-def test_get_new_command(branches, command, new_command, get_branches):
-    get_branches.return_value = branches
+def test_get_new_command(branches, command, new_command, git_branch):
+    git_branch(branches)
     assert get_new_command(command) == new_command

tests/rules/test_git_help_aliased.py

@@ -0,0 +1,24 @@
+import pytest
+from thefuck.rules.git_help_aliased import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('script, stdout', [
+    ('git help st', "`git st' is aliased to `status'"),
+    ('git help ds', "`git ds' is aliased to `diff --staged'")])
+def test_match(script, stdout):
+    assert match(Command(script=script, stdout=stdout))
+
+
+@pytest.mark.parametrize('script, stdout', [
+    ('git help status', "GIT-STATUS(1)...Git Manual...GIT-STATUS(1)"),
+    ('git help diff', "GIT-DIFF(1)...Git Manual...GIT-DIFF(1)")])
+def test_not_match(script, stdout):
+    assert not match(Command(script=script, stdout=stdout))
+
+
+@pytest.mark.parametrize('script, stdout, new_command', [
+    ('git help st', "`git st' is aliased to `status'", 'git help status'),
+    ('git help ds', "`git ds' is aliased to `diff --staged'", 'git help diff')])
+def test_get_new_command(script, stdout, new_command):
+    assert get_new_command(Command(script=script, stdout=stdout)) == new_command

tests/rules/test_git_remote_seturl_add.py

@@ -0,0 +1,26 @@
+import pytest
+from thefuck.rules.git_remote_seturl_add import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git remote set-url origin url', stderr="fatal: No such remote")])
+def test_match(command):
+    assert match(command)
+
+
+@pytest.mark.parametrize('command', [
+    Command('git remote set-url origin url', stderr=""),
+    Command('git remote add origin url'),
+    Command('git remote remove origin'),
+    Command('git remote prune origin'),
+    Command('git remote set-branches origin branch')
+    ])
+def test_not_match(command):
+    assert not match(command)
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('git remote set-url origin git@github.com:nvbn/thefuck.git'),
+     'git remote add origin git@github.com:nvbn/thefuck.git')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command) == 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_grep_arguments_order.py

@@ -0,0 +1,40 @@
+import pytest
+from thefuck.rules.grep_arguments_order import get_new_command, match
+from tests.utils import Command
+
+stderr = 'grep: {}: No such file or directory'.format
+
+
+@pytest.fixture(autouse=True)
+def os_path(monkeypatch):
+    monkeypatch.setattr('os.path.isfile', lambda x: not x.startswith('-'))
+
+
+@pytest.mark.parametrize('script, file', [
+    ('grep test.py test', 'test'),
+    ('grep -lir . test', 'test'),
+    ('egrep test.py test', 'test'),
+    ('egrep -lir . test', 'test')])
+def test_match(script, file):
+    assert match(Command(script, stderr=stderr(file)))
+
+
+@pytest.mark.parametrize('script, stderr', [
+    ('cat test.py', stderr('test')),
+    ('grep test test.py', ''),
+    ('grep -lir test .', ''),
+    ('egrep test test.py', ''),
+    ('egrep -lir test .', '')])
+def test_not_match(script, stderr):
+    assert not match(Command(script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script, stderr, result', [
+    ('grep test.py test', stderr('test'), 'grep test test.py'),
+    ('grep -lir . test', stderr('test'), 'grep -lir test .'),
+    ('grep . test -lir', stderr('test'), 'grep test -lir .'),
+    ('egrep test.py test', stderr('test'), 'egrep test test.py'),
+    ('egrep -lir . test', stderr('test'), 'egrep -lir test .'),
+    ('egrep . test -lir', stderr('test'), 'egrep test -lir .')])
+def test_get_new_command(script, stderr, result):
+    assert get_new_command(Command(script, stderr=stderr)) == result

tests/rules/test_gulp_not_task.py

@@ -1,4 +1,5 @@
 import pytest
+from io import BytesIO
 from tests.utils import Command
 from thefuck.rules.gulp_not_task import match, get_new_command
 
@@ -22,7 +23,7 @@ def test_not_march(script, stdout):
 
 
 def test_get_new_command(mocker):
-    mocker.patch('thefuck.rules.gulp_not_task.get_gulp_tasks', return_value=[
-        'serve', 'build', 'default'])
+    mock = mocker.patch('subprocess.Popen')
+    mock.return_value.stdout = BytesIO(b'serve \nbuild \ndefault \n')
     command = Command('gulp srve', stdout('srve'))
     assert get_new_command(command) == ['gulp serve', 'gulp default']

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.rules.history.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.thefuck_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_ln_no_hard_link.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+import pytest
+from thefuck.rules.ln_no_hard_link import match, get_new_command
+from tests.utils import Command
+
+error = "hard link not allowed for directory"
+
+
+@pytest.mark.parametrize('script, stderr', [
+    ("ln barDir barLink", "ln: ‘barDir’: {}"),
+    ("sudo ln a b", "ln: ‘a’: {}"),
+    ("sudo ln -nbi a b", "ln: ‘a’: {}")])
+def test_match(script, stderr):
+    command = Command(script, stderr=stderr.format(error))
+    assert match(command)
+
+
+@pytest.mark.parametrize('script, stderr', [
+    ('', ''),
+    ("ln a b", "... hard link"),
+    ("sudo ln a b", "... hard link"),
+    ("a b", error)])
+def test_assert_not_match(script, stderr):
+    command = Command(script, stderr=stderr)
+    assert not match(command)
+
+
+@pytest.mark.parametrize('script, result', [
+    ("ln barDir barLink", "ln -s barDir barLink"),
+    ("sudo ln barDir barLink", "sudo ln -s barDir barLink"),
+    ("sudo ln -nbi a b", "sudo ln -s -nbi a b"),
+    ("ln -nbi a b && ls", "ln -s -nbi a b && ls"),
+    ("ln a ln", "ln -s a ln"),
+    ("sudo ln a ln", "sudo ln -s a ln")])
+def test_get_new_command(script, result):
+    command = Command(script)
+    assert get_new_command(command) == result

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_npm_wrong_command.py

@@ -0,0 +1,58 @@
+import pytest
+from thefuck.rules.npm_wrong_command import match, get_new_command
+from tests.utils import Command
+
+stdout = '''
+Usage: npm <command>
+
+where <command> is one of:
+    access, add-user, adduser, apihelp, author, bin, bugs, c,
+    cache, completion, config, ddp, dedupe, deprecate, dist-tag,
+    dist-tags, docs, edit, explore, faq, find, find-dupes, get,
+    help, help-search, home, i, info, init, install, issues, la,
+    link, list, ll, ln, login, logout, ls, outdated, owner,
+    pack, ping, prefix, prune, publish, r, rb, rebuild, remove,
+    repo, restart, rm, root, run-script, s, se, search, set,
+    show, shrinkwrap, star, stars, start, stop, t, tag, team,
+    test, tst, un, uninstall, unlink, unpublish, unstar, up,
+    update, upgrade, v, verison, version, view, whoami
+
+npm <cmd> -h     quick help on <cmd>
+npm -l           display full usage info
+npm faq          commonly asked questions
+npm help <term>  search for help on <term>
+npm help npm     involved overview
+
+Specify configs in the ini-formatted file:
+    /home/nvbn/.npmrc
+or on the command line via: npm <command> --key value
+Config info can be viewed via: npm help config
+
+npm@2.14.7 /opt/node/lib/node_modules/npm
+'''
+
+
+@pytest.mark.parametrize('script', [
+    'npm urgrdae',
+    'npm urgrade -g',
+    'npm -f urgrade -g',
+    'npm urg'])
+def test_match(script):
+    assert match(Command(script, stdout))
+
+
+@pytest.mark.parametrize('script, stdout', [
+    ('npm urgrade', ''),
+    ('npm', stdout),
+    ('test urgrade', stdout),
+    ('npm -e', stdout)])
+def test_not_match(script, stdout):
+    assert not match(Command(script, stdout))
+
+
+@pytest.mark.parametrize('script, result', [
+    ('npm urgrade', 'npm upgrade'),
+    ('npm -g isntall gulp', 'npm -g install gulp'),
+    ('npm isntall -g gulp', 'npm install -g gulp')])
+def test_get_new_command(script, result):
+    assert get_new_command(Command(script, stdout)) == 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/conftest.py

@@ -0,0 +1,22 @@
+import pytest
+
+
+@pytest.fixture
+def builtins_open(mocker):
+    return mocker.patch('six.moves.builtins.open')
+
+
+@pytest.fixture
+def isfile(mocker):
+    return mocker.patch('os.path.isfile', return_value=True)
+
+
+@pytest.fixture
+@pytest.mark.usefixtures('isfile')
+def history_lines(mocker):
+    def aux(lines):
+        mock = mocker.patch('io.open')
+        mock.return_value.__enter__ \
+            .return_value.readlines.return_value = lines
+
+    return aux

tests/shells/test_bash.py

@@ -0,0 +1,58 @@
+# -*- coding: utf-8 -*-
+
+import os
+import pytest
+from thefuck.shells import Bash
+
+
+@pytest.mark.usefixtures('isfile', 'no_memoize', 'no_cache')
+class TestBash(object):
+    @pytest.fixture
+    def shell(self):
+        return Bash()
+
+    @pytest.fixture(autouse=True)
+    def shell_aliases(self):
+        os.environ['TF_SHELL_ALIASES'] = (
+            'alias fuck=\'eval $(thefuck $(fc -ln -1))\'\n'
+            'alias l=\'ls -CF\'\n'
+            'alias la=\'ls -A\'\n'
+            'alias ll=\'ls -alF\'')
+
+    @pytest.mark.parametrize('before, after', [
+        ('pwd', 'pwd'),
+        ('fuck', 'eval $(thefuck $(fc -ln -1))'),
+        ('awk', 'awk'),
+        ('ll', 'ls -alF')])
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'fuck': 'eval $(thefuck $(fc -ln -1))',
+                                       'l': 'ls -CF',
+                                       'la': 'ls -A',
+                                       'll': 'ls -alF'}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias('fuck')
+        assert 'alias FUCK' in shell.app_alias('FUCK')
+        assert 'thefuck' in shell.app_alias('fuck')
+        assert 'TF_ALIAS=fuck' in shell.app_alias('fuck')
+        assert 'PYTHONIOENCODING=utf-8' in shell.app_alias('fuck')
+
+    def test_app_alias_variables_correctly_set(self, shell):
+        alias = shell.app_alias('fuck')
+        assert "alias fuck='TF_CMD=$(TF_ALIAS" in alias
+        assert '$(TF_ALIAS=fuck PYTHONIOENCODING' in alias
+        assert 'PYTHONIOENCODING=utf-8 TF_SHELL_ALIASES' in alias
+        assert 'ALIASES=$(alias) thefuck' in alias
+
+    def test_get_history(self, history_lines, shell):
+        history_lines(['ls', 'rm'])
+        assert list(shell.get_history()) == ['ls', 'rm']

tests/shells/test_fish.py

@@ -0,0 +1,89 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+from thefuck.shells import Fish
+
+
+@pytest.mark.usefixtures('isfile', 'no_memoize', 'no_cache')
+class TestFish(object):
+    @pytest.fixture
+    def shell(self):
+        return Fish()
+
+    @pytest.fixture(autouse=True)
+    def Popen(self, mocker):
+        mock = mocker.patch('thefuck.shells.fish.Popen')
+        mock.return_value.stdout.read.return_value = (
+            b'cd\nfish_config\nfuck\nfunced\nfuncsave\ngrep\nhistory\nll\nls\n'
+            b'man\nmath\npopd\npushd\nruby')
+        return mock
+
+    @pytest.fixture
+    def os_environ(self, monkeypatch, key, value):
+        monkeypatch.setattr('os.environ', {key: value})
+
+    @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'),
+        ('pwd', 'pwd'),
+        ('fuck', 'fish -ic "fuck"'),
+        ('find', 'find'),
+        ('funced', 'fish -ic "funced"'),
+        ('grep', 'grep'),
+        ('awk', 'awk'),
+        ('math "2 + 2"', r'fish -ic "math \"2 + 2\""'),
+        ('man', 'man'),
+        ('open', 'open'),
+        ('vim', 'vim'),
+        ('ll', 'fish -ic "ll"'),
+        ('ls', 'ls')])  # Fish has no aliases but functions
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_and_(self, shell):
+        assert shell.and_('foo', 'bar') == 'foo; and bar'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'fish_config': 'fish_config',
+                                       'fuck': 'fuck',
+                                       'funced': 'funced',
+                                       'funcsave': 'funcsave',
+                                       'history': 'history',
+                                       'll': 'll',
+                                       'math': 'math',
+                                       'popd': 'popd',
+                                       'pushd': 'pushd',
+                                       'ruby': 'ruby'}
+
+    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')
+        assert 'TF_ALIAS=fuck PYTHONIOENCODING' in shell.app_alias('fuck')
+        assert 'PYTHONIOENCODING=utf-8 thefuck' in shell.app_alias('fuck')
+
+    def test_get_history(self, history_lines, shell):
+        history_lines(['- cmd: ls', '  when: 1432613911',
+                       '- cmd: rm', '  when: 1432613916'])
+        assert list(shell.get_history()) == ['ls', 'rm']
+
+    @pytest.mark.parametrize('entry, entry_utf8', [
+        ('ls', '- cmd: ls\n   when: 1430707243\n'),
+        (u'echo café', '- cmd: echo café\n   when: 1430707243\n')])
+    def test_put_to_history(self, entry, entry_utf8, builtins_open, mocker, shell):
+        mocker.patch('thefuck.shells.fish.time', return_value=1430707243.3517463)
+        shell.put_to_history(entry)
+        builtins_open.return_value.__enter__.return_value. \
+            write.assert_called_once_with(entry_utf8)

tests/shells/test_generic.py

@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+from thefuck.shells import Generic
+
+
+class TestGeneric(object):
+    @pytest.fixture
+    def shell(self):
+        return Generic()
+
+    def test_from_shell(self, shell):
+        assert shell.from_shell('pwd') == 'pwd'
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias('fuck')
+        assert 'alias FUCK' in shell.app_alias('FUCK')
+        assert 'thefuck' in shell.app_alias('fuck')
+        assert 'TF_ALIAS=fuck PYTHONIOENCODING' in shell.app_alias('fuck')
+        assert 'PYTHONIOENCODING=utf-8 thefuck' in shell.app_alias('fuck')
+
+    def test_get_history(self, history_lines, shell):
+        history_lines(['ls', 'rm'])
+        # We don't know what to do in generic shell with history lines,
+        # so just ignore them:
+        assert list(shell.get_history()) == []
+
+    def test_split_command(self, shell):
+        assert shell.split_command('ls') == ['ls']
+        assert shell.split_command(u'echo café') == [u'echo', u'café']

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/shells/test_tcsh.py

@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+from thefuck.shells.tcsh import Tcsh
+
+
+@pytest.mark.usefixtures('isfile', 'no_memoize', 'no_cache')
+class TestTcsh(object):
+    @pytest.fixture
+    def shell(self):
+        return Tcsh()
+
+    @pytest.fixture(autouse=True)
+    def Popen(self, mocker):
+        mock = mocker.patch('thefuck.shells.tcsh.Popen')
+        mock.return_value.stdout.read.return_value = (
+            b'fuck\teval $(thefuck $(fc -ln -1))\n'
+            b'l\tls -CF\n'
+            b'la\tls -A\n'
+            b'll\tls -alF')
+        return mock
+
+    @pytest.mark.parametrize('before, after', [
+        ('pwd', 'pwd'),
+        ('fuck', 'eval $(thefuck $(fc -ln -1))'),
+        ('awk', 'awk'),
+        ('ll', 'ls -alF')])
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'fuck': 'eval $(thefuck $(fc -ln -1))',
+                                       'l': 'ls -CF',
+                                       'la': 'ls -A',
+                                       'll': 'ls -alF'}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias('fuck')
+        assert 'alias FUCK' in shell.app_alias('FUCK')
+        assert 'thefuck' in shell.app_alias('fuck')
+
+    def test_get_history(self, history_lines, shell):
+        history_lines(['ls', 'rm'])
+        assert list(shell.get_history()) == ['ls', 'rm']

tests/shells/test_zsh.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+
+import os
+import pytest
+from thefuck.shells.zsh import Zsh
+
+
+@pytest.mark.usefixtures('isfile', 'no_memoize', 'no_cache')
+class TestZsh(object):
+    @pytest.fixture
+    def shell(self):
+        return Zsh()
+
+    @pytest.fixture(autouse=True)
+    def shell_aliases(self):
+        os.environ['TF_SHELL_ALIASES'] = (
+            'fuck=\'eval $(thefuck $(fc -ln -1 | tail -n 1))\'\n'
+            'l=\'ls -CF\'\n'
+            'la=\'ls -A\'\n'
+            'll=\'ls -alF\'')
+
+    @pytest.mark.parametrize('before, after', [
+        ('fuck', 'eval $(thefuck $(fc -ln -1 | tail -n 1))'),
+        ('pwd', 'pwd'),
+        ('ll', 'ls -alF')])
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {
+            'fuck': 'eval $(thefuck $(fc -ln -1 | tail -n 1))',
+            'l': 'ls -CF',
+            'la': 'ls -A',
+            'll': 'ls -alF'}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias('fuck')
+        assert 'alias FUCK' in shell.app_alias('FUCK')
+        assert 'thefuck' in shell.app_alias('fuck')
+        assert 'PYTHONIOENCODING' in shell.app_alias('fuck')
+
+    def test_app_alias_variables_correctly_set(self, shell):
+        alias = shell.app_alias('fuck')
+        assert "alias fuck='TF_CMD=$(TF_ALIAS" in alias
+        assert '$(TF_ALIAS=fuck PYTHONIOENCODING' in alias
+        assert 'PYTHONIOENCODING=utf-8 TF_SHELL_ALIASES' in alias
+        assert 'ALIASES=$(alias) thefuck' in alias
+
+    def test_get_history(self, history_lines, shell):
+        history_lines([': 1432613911:0;ls', ': 1432613916:0;rm'])
+        assert list(shell.get_history()) == ['ls', 'rm']

tests/test_conf.py

@@ -1,7 +1,7 @@
 import pytest
 import six
 from mock import Mock
-from thefuck import conf
+from thefuck import const
 
 
 @pytest.fixture
@@ -20,7 +20,7 @@ def environ(monkeypatch):
 def test_settings_defaults(load_source, settings):
     load_source.return_value = object()
     settings.init()
-    for key, val in conf.DEFAULT_SETTINGS.items():
+    for key, val in const.DEFAULT_SETTINGS.items():
         assert getattr(settings, key) == val
 
 
@@ -42,13 +42,13 @@ class TestSettingsFromFile(object):
         assert settings.exclude_rules == ['git']
 
     def test_from_file_with_DEFAULT(self, load_source, settings):
-        load_source.return_value = Mock(rules=conf.DEFAULT_RULES + ['test'],
+        load_source.return_value = Mock(rules=const.DEFAULT_RULES + ['test'],
                                         wait_command=10,
                                         exclude_rules=[],
                                         require_confirmation=True,
                                         no_colors=True)
         settings.init()
-        assert settings.rules == conf.DEFAULT_RULES + ['test']
+        assert settings.rules == const.DEFAULT_RULES + ['test']
 
 
 @pytest.mark.usefixture('load_source')
@@ -71,7 +71,7 @@ class TestSettingsFromEnv(object):
     def test_from_env_with_DEFAULT(self, environ, settings):
         environ.update({'THEFUCK_RULES': 'DEFAULT_RULES:bash:lisp'})
         settings.init()
-        assert settings.rules == conf.DEFAULT_RULES + ['bash', 'lisp']
+        assert settings.rules == const.DEFAULT_RULES + ['bash', 'lisp']
 
 
 class TestInitializeSettingsFile(object):
@@ -93,7 +93,7 @@ class TestInitializeSettingsFile(object):
         settings_file_contents = settings_file.getvalue()
         assert settings_path_mock.is_file.call_count == 1
         assert settings_path_mock.open.call_count == 1
-        assert conf.SETTINGS_HEADER in settings_file_contents
-        for setting in conf.DEFAULT_SETTINGS.items():
+        assert const.SETTINGS_HEADER in settings_file_contents
+        for setting in const.DEFAULT_SETTINGS.items():
             assert '# {} = {}\n'.format(*setting) in settings_file_contents
         settings_file.close()

tests/test_corrector.py

@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 
 import pytest
-from pathlib import PosixPath
-from thefuck import corrector, conf
+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
 
@@ -24,13 +24,13 @@ class TestGetRules(object):
         assert {r.name for r in rules} == set(names)
 
     @pytest.mark.parametrize('paths, conf_rules, exclude_rules, loaded_rules', [
-        (['git.py', 'bash.py'], conf.DEFAULT_RULES, [], ['git', 'bash']),
+        (['git.py', 'bash.py'], const.DEFAULT_RULES, [], ['git', 'bash']),
         (['git.py', 'bash.py'], ['git'], [], ['git']),
-        (['git.py', 'bash.py'], conf.DEFAULT_RULES, ['git'], ['bash']),
+        (['git.py', 'bash.py'], const.DEFAULT_RULES, ['git'], ['bash']),
         (['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_shells.py

@@ -1,260 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import pytest
-from thefuck import shells
-
-
-@pytest.fixture
-def builtins_open(mocker):
-    return mocker.patch('six.moves.builtins.open')
-
-
-@pytest.fixture
-def isfile(mocker):
-    return mocker.patch('os.path.isfile', return_value=True)
-
-
-@pytest.fixture
-@pytest.mark.usefixtures('isfile')
-def history_lines(mocker):
-    def aux(lines):
-        mock = mocker.patch('io.open')
-        mock.return_value.__enter__\
-            .return_value.readlines.return_value = lines
-    return aux
-
-
-class TestGeneric(object):
-    @pytest.fixture
-    def shell(self):
-        return shells.Generic()
-
-    def test_from_shell(self, shell):
-        assert shell.from_shell('pwd') == 'pwd'
-
-    def test_to_shell(self, shell):
-        assert shell.to_shell('pwd') == 'pwd'
-
-    def test_put_to_history(self, builtins_open, shell):
-        assert shell.put_to_history('ls') is None
-        assert shell.put_to_history(u'echo café') is None
-        assert builtins_open.call_count == 0
-
-    def test_and_(self, shell):
-        assert shell.and_('ls', 'cd') == 'ls && cd'
-
-    def test_get_aliases(self, shell):
-        assert shell.get_aliases() == {}
-
-    def test_app_alias(self, shell):
-        assert 'alias fuck' in shell.app_alias('fuck')
-        assert 'alias FUCK' in shell.app_alias('FUCK')
-        assert 'thefuck' in shell.app_alias('fuck')
-        assert 'TF_ALIAS' in shell.app_alias('fuck')
-        assert 'PYTHONIOENCODING=utf-8' in shell.app_alias('fuck')
-
-    def test_get_history(self, history_lines, shell):
-        history_lines(['ls', 'rm'])
-        # We don't know what to do in generic shell with history lines,
-        # so just ignore them:
-        assert list(shell.get_history()) == []
-
-    def test_split_command(self, shell):
-        assert shell.split_command('ls') == ['ls']
-        assert shell.split_command(u'echo café') == [u'echo', u'café']
-
-
-@pytest.mark.usefixtures('isfile')
-class TestBash(object):
-    @pytest.fixture
-    def shell(self):
-        return shells.Bash()
-
-    @pytest.fixture(autouse=True)
-    def Popen(self, mocker):
-        mock = mocker.patch('thefuck.shells.Popen')
-        mock.return_value.stdout.read.return_value = (
-            b'alias fuck=\'eval $(thefuck $(fc -ln -1))\'\n'
-            b'alias l=\'ls -CF\'\n'
-            b'alias la=\'ls -A\'\n'
-            b'alias ll=\'ls -alF\'')
-        return mock
-
-    @pytest.mark.parametrize('before, after', [
-        ('pwd', 'pwd'),
-        ('fuck', 'eval $(thefuck $(fc -ln -1))'),
-        ('awk', 'awk'),
-        ('ll', 'ls -alF')])
-    def test_from_shell(self, before, after, shell):
-        assert shell.from_shell(before) == after
-
-    def test_to_shell(self, shell):
-        assert shell.to_shell('pwd') == 'pwd'
-
-    @pytest.mark.parametrize('entry, entry_utf8', [
-        ('ls', 'ls\n'),
-        (u'echo café', 'echo café\n')])
-    def test_put_to_history(self, entry, entry_utf8, builtins_open, shell):
-        shell.put_to_history(entry)
-        builtins_open.return_value.__enter__.return_value. \
-            write.assert_called_once_with(entry_utf8)
-
-    def test_and_(self, shell):
-        assert shell.and_('ls', 'cd') == 'ls && cd'
-
-    def test_get_aliases(self, shell):
-        assert shell.get_aliases() == {'fuck': 'eval $(thefuck $(fc -ln -1))',
-                                       'l': 'ls -CF',
-                                       'la': 'ls -A',
-                                       'll': 'ls -alF'}
-
-    def test_app_alias(self, shell):
-        assert 'alias fuck' in shell.app_alias('fuck')
-        assert 'alias FUCK' in shell.app_alias('FUCK')
-        assert 'thefuck' in shell.app_alias('fuck')
-        assert 'TF_ALIAS' in shell.app_alias('fuck')
-        assert 'PYTHONIOENCODING=utf-8' in shell.app_alias('fuck')
-
-    def test_get_history(self, history_lines, shell):
-        history_lines(['ls', 'rm'])
-        assert list(shell.get_history()) == ['ls', 'rm']
-
-
-@pytest.mark.usefixtures('isfile')
-class TestFish(object):
-    @pytest.fixture
-    def shell(self):
-        return shells.Fish()
-
-    @pytest.fixture(autouse=True)
-    def Popen(self, mocker):
-        mock = mocker.patch('thefuck.shells.Popen')
-        mock.return_value.stdout.read.return_value = (
-            b'cd\nfish_config\nfuck\nfunced\nfuncsave\ngrep\nhistory\nll\nls\n'
-            b'man\nmath\npopd\npushd\nruby')
-        return mock
-
-    @pytest.fixture
-    def environ(self, monkeypatch):
-        data = {'TF_OVERRIDDEN_ALIASES': 'cd, ls, man, open'}
-        monkeypatch.setattr('thefuck.shells.os.environ', data)
-        return data
-
-    @pytest.mark.usefixture('environ')
-    def test_get_overridden_aliases(self, shell, environ):
-        assert shell._get_overridden_aliases() == ['cd', 'ls', 'man', 'open']
-
-    @pytest.mark.parametrize('before, after', [
-        ('cd', 'cd'),
-        ('pwd', 'pwd'),
-        ('fuck', 'fish -ic "fuck"'),
-        ('find', 'find'),
-        ('funced', 'fish -ic "funced"'),
-        ('grep', 'grep'),
-        ('awk', 'awk'),
-        ('math "2 + 2"', r'fish -ic "math \"2 + 2\""'),
-        ('man', 'man'),
-        ('open', 'open'),
-        ('vim', 'vim'),
-        ('ll', 'fish -ic "ll"'),
-        ('ls', 'ls')])  # Fish has no aliases but functions
-    def test_from_shell(self, before, after, shell):
-        assert shell.from_shell(before) == after
-
-    def test_to_shell(self, shell):
-        assert shell.to_shell('pwd') == 'pwd'
-
-    @pytest.mark.parametrize('entry, entry_utf8', [
-        ('ls', '- cmd: ls\n   when: 1430707243\n'),
-        (u'echo café', '- cmd: echo café\n   when: 1430707243\n')])
-    def test_put_to_history(self, entry, entry_utf8, builtins_open, mocker, shell):
-        mocker.patch('thefuck.shells.time',
-                     return_value=1430707243.3517463)
-        shell.put_to_history(entry)
-        builtins_open.return_value.__enter__.return_value. \
-            write.assert_called_once_with(entry_utf8)
-
-    def test_and_(self, shell):
-        assert shell.and_('foo', 'bar') == 'foo; and bar'
-
-    def test_get_aliases(self, shell):
-        assert shell.get_aliases() == {'fish_config': 'fish_config',
-                                       'fuck': 'fuck',
-                                       'funced': 'funced',
-                                       'funcsave': 'funcsave',
-                                       'history': 'history',
-                                       'll': 'll',
-                                       'math': 'math',
-                                       'popd': 'popd',
-                                       'pushd': 'pushd',
-                                       'ruby': 'ruby'}
-
-    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')
-        assert 'TF_ALIAS' in shell.app_alias('fuck')
-        assert 'PYTHONIOENCODING=utf-8' in shell.app_alias('fuck')
-
-    def test_get_history(self, history_lines, shell):
-        history_lines(['- cmd: ls', '  when: 1432613911',
-                       '- cmd: rm', '  when: 1432613916'])
-        assert list(shell.get_history()) == ['ls', 'rm']
-
-
-@pytest.mark.usefixtures('isfile')
-class TestZsh(object):
-    @pytest.fixture
-    def shell(self):
-        return shells.Zsh()
-
-    @pytest.fixture(autouse=True)
-    def Popen(self, mocker):
-        mock = mocker.patch('thefuck.shells.Popen')
-        mock.return_value.stdout.read.return_value = (
-            b'fuck=\'eval $(thefuck $(fc -ln -1 | tail -n 1))\'\n'
-            b'l=\'ls -CF\'\n'
-            b'la=\'ls -A\'\n'
-            b'll=\'ls -alF\'')
-        return mock
-
-    @pytest.mark.parametrize('before, after', [
-        ('fuck', 'eval $(thefuck $(fc -ln -1 | tail -n 1))'),
-        ('pwd', 'pwd'),
-        ('ll', 'ls -alF')])
-    def test_from_shell(self, before, after, shell):
-        assert shell.from_shell(before) == after
-
-    def test_to_shell(self, shell):
-        assert shell.to_shell('pwd') == 'pwd'
-
-    @pytest.mark.parametrize('entry, entry_utf8', [
-        ('ls', ': 1430707243:0;ls\n'),
-        (u'echo café', ': 1430707243:0;echo café\n')])
-    def test_put_to_history(self, entry, entry_utf8, builtins_open, mocker, shell):
-        mocker.patch('thefuck.shells.time',
-                     return_value=1430707243.3517463)
-        shell.put_to_history(entry)
-        builtins_open.return_value.__enter__.return_value. \
-            write.assert_called_once_with(entry_utf8)
-
-    def test_and_(self, shell):
-        assert shell.and_('ls', 'cd') == 'ls && cd'
-
-    def test_get_aliases(self, shell):
-        assert shell.get_aliases() == {
-            'fuck': 'eval $(thefuck $(fc -ln -1 | tail -n 1))',
-            'l': 'ls -CF',
-            'la': 'ls -A',
-            'll': 'ls -alF'}
-
-    def test_app_alias(self, shell):
-        assert 'alias fuck' in shell.app_alias('fuck')
-        assert 'alias FUCK' in shell.app_alias('FUCK')
-        assert 'thefuck' in shell.app_alias('fuck')
-        assert 'TF_ALIAS' in shell.app_alias('fuck')
-        assert 'PYTHONIOENCODING=utf-8' in shell.app_alias('fuck')
-
-    def test_get_history(self, history_lines, shell):
-        history_lines([': 1432613911:0;ls', ': 1432613916:0;rm'])
-        assert list(shell.get_history()) == ['ls', 'rm']

tests/test_types.py

@@ -1,11 +1,12 @@
 # -*- coding: utf-8 -*-
 
+import os
 from subprocess import PIPE
 from mock import Mock
 from pathlib import Path
 import pytest
 from tests.utils import CorrectedCommand, Rule, Command
-from thefuck import conf
+from thefuck import const
 from thefuck.exceptions import EmptyCommand
 
 
@@ -39,19 +40,20 @@ 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', [
-        (conf.DEFAULT_RULES, [], Rule('git', enabled_by_default=True), True),
-        (conf.DEFAULT_RULES, [], Rule('git', enabled_by_default=False), False),
+        (const.DEFAULT_RULES, [], Rule('git', enabled_by_default=True), True),
+        (const.DEFAULT_RULES, [], Rule('git', enabled_by_default=False), False),
         ([], [], Rule('git', enabled_by_default=False), False),
         ([], [], Rule('git', enabled_by_default=True), False),
-        (conf.DEFAULT_RULES + ['git'], [], Rule('git', enabled_by_default=False), True),
+        (const.DEFAULT_RULES + ['git'], [], Rule('git', enabled_by_default=False), True),
         (['git'], [], Rule('git', enabled_by_default=False), True),
-        (conf.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=True), False),
-        (conf.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=False), False),
+        (const.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=True), False),
+        (const.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=False), False),
         ([], ['git'], Rule('git', enabled_by_default=True), False),
         ([], ['git'], Rule('git', enabled_by_default=False), False)])
     def test_is_enabled(self, settings, rules, exclude_rules, rule, is_enabled):
@@ -103,11 +105,6 @@ class TestCommand(object):
         monkeypatch.setattr('thefuck.types.Command._wait_output',
                             staticmethod(lambda *_: True))
 
-    @pytest.fixture(autouse=True)
-    def generic_shell(self, monkeypatch):
-        monkeypatch.setattr('thefuck.shells.from_shell', lambda x: x)
-        monkeypatch.setattr('thefuck.shells.to_shell', lambda x: x)
-
     def test_from_script_calls(self, Popen, settings):
         settings.env = {}
         assert Command.from_raw_script(
@@ -115,6 +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_ui.py

@@ -31,7 +31,9 @@ def test_read_actions(patch_get_key):
         # Ctrl+C:
         const.KEY_CTRL_C])
     assert list(islice(ui.read_actions(), 5)) \
-           == [ui.SELECT, ui.SELECT, ui.PREVIOUS, ui.NEXT, ui.ABORT]
+           == [const.ACTION_SELECT, const.ACTION_SELECT,
+               const.ACTION_PREVIOUS, const.ACTION_NEXT,
+               const.ACTION_ABORT]
 
 
 def test_command_selector():

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
 
 
@@ -50,7 +51,7 @@ class TestGetClosest(object):
 
 @pytest.fixture
 def get_aliases(mocker):
-    mocker.patch('thefuck.shells.get_aliases',
+    mocker.patch('thefuck.shells.shell.get_aliases',
                  return_value=['vim', 'apt-get', 'fsck', 'fuck'])
 
 
@@ -162,10 +163,10 @@ class TestCache(object):
 
     @pytest.fixture
     def key(self):
-        if six.PY3:
-            return 'tests.test_utils.<function TestCache.fn.<locals>.fn '
-        else:
+        if six.PY2:
             return 'tests.test_utils.<function fn '
+        else:
+            return 'tests.test_utils.<function TestCache.fn.<locals>.fn '
 
     def test_with_blank_cache(self, shelve, fn, key):
         assert shelve == {}
@@ -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

tests/utils.py

@@ -1,5 +1,5 @@
 from thefuck import types
-from thefuck.conf import DEFAULT_PRIORITY
+from thefuck.const import DEFAULT_PRIORITY
 
 
 class Command(types.Command):

thefuck/conf.py

@@ -3,44 +3,7 @@ import os
 import sys
 from pathlib import Path
 from six import text_type
-
-
-ALL_ENABLED = object()
-DEFAULT_RULES = [ALL_ENABLED]
-DEFAULT_PRIORITY = 1000
-
-DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
-                    'exclude_rules': [],
-                    'wait_command': 3,
-                    'require_confirmation': True,
-                    'no_colors': False,
-                    'debug': False,
-                    'priority': {},
-                    'history_limit': None,
-                    'alter_history': True,
-                    'env': {'LC_ALL': 'C', 'LANG': 'C', 'GIT_TRACE': '1'}}
-
-ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
-               'THEFUCK_EXCLUDE_RULES': 'exclude_rules',
-               'THEFUCK_WAIT_COMMAND': 'wait_command',
-               'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
-               'THEFUCK_NO_COLORS': 'no_colors',
-               'THEFUCK_DEBUG': 'debug',
-               'THEFUCK_PRIORITY': 'priority',
-               'THEFUCK_HISTORY_LIMIT': 'history_limit',
-               'THEFUCK_ALTER_HISTORY': 'alter_history'}
-
-SETTINGS_HEADER = u"""# The Fuck settings file
-#
-# The rules are defined as in the example bellow:
-#
-# rules = ['cd_parent', 'git_push', 'python_command', 'sudo']
-#
-# The default values are as follows. Uncomment and change to fit your needs.
-# See https://github.com/nvbn/thefuck#settings for more information.
-#
-
-"""
+from . import const
 
 
 class Settings(dict):
@@ -71,8 +34,8 @@ class Settings(dict):
         settings_path = self.user_dir.joinpath('settings.py')
         if not settings_path.is_file():
             with settings_path.open(mode='w') as settings_file:
-                settings_file.write(SETTINGS_HEADER)
-                for setting in DEFAULT_SETTINGS.items():
+                settings_file.write(const.SETTINGS_HEADER)
+                for setting in const.DEFAULT_SETTINGS.items():
                     settings_file.write(u'# {} = {}\n'.format(*setting))
 
     def _get_user_dir_path(self):
@@ -100,14 +63,14 @@ class Settings(dict):
         settings = load_source(
             'settings', text_type(self.user_dir.joinpath('settings.py')))
         return {key: getattr(settings, key)
-                for key in DEFAULT_SETTINGS.keys()
+                for key in const.DEFAULT_SETTINGS.keys()
                 if hasattr(settings, key)}
 
     def _rules_from_env(self, val):
         """Transforms rules list from env-string to python."""
         val = val.split(':')
         if 'DEFAULT_RULES' in val:
-            val = DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
+            val = const.DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
         return val
 
     def _priority_from_env(self, val):
@@ -139,8 +102,8 @@ class Settings(dict):
     def _settings_from_env(self):
         """Loads settings from env."""
         return {attr: self._val_from_env(env, attr)
-                for env, attr in ENV_TO_ATTR.items()
+                for env, attr in const.ENV_TO_ATTR.items()
                 if env in os.environ}
 
 
-settings = Settings(DEFAULT_SETTINGS)
+settings = Settings(const.DEFAULT_SETTINGS)

thefuck/const.py

@@ -12,3 +12,45 @@ class _GenConst(object):
 KEY_UP = _GenConst('↑')
 KEY_DOWN = _GenConst('↓')
 KEY_CTRL_C = _GenConst('Ctrl+C')
+
+ACTION_SELECT = _GenConst('select')
+ACTION_ABORT = _GenConst('abort')
+ACTION_PREVIOUS = _GenConst('previous')
+ACTION_NEXT = _GenConst('next')
+
+ALL_ENABLED = _GenConst('All rules enabled')
+DEFAULT_RULES = [ALL_ENABLED]
+DEFAULT_PRIORITY = 1000
+
+DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
+                    'exclude_rules': [],
+                    'wait_command': 3,
+                    'require_confirmation': True,
+                    'no_colors': False,
+                    'debug': False,
+                    'priority': {},
+                    'history_limit': None,
+                    'alter_history': True,
+                    'env': {'LC_ALL': 'C', 'LANG': 'C', 'GIT_TRACE': '1'}}
+
+ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
+               'THEFUCK_EXCLUDE_RULES': 'exclude_rules',
+               'THEFUCK_WAIT_COMMAND': 'wait_command',
+               'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
+               'THEFUCK_NO_COLORS': 'no_colors',
+               'THEFUCK_DEBUG': 'debug',
+               'THEFUCK_PRIORITY': 'priority',
+               'THEFUCK_HISTORY_LIMIT': 'history_limit',
+               'THEFUCK_ALTER_HISTORY': 'alter_history'}
+
+SETTINGS_HEADER = u"""# The Fuck settings file
+#
+# The rules are defined as in the example bellow:
+#
+# rules = ['cd_parent', 'git_push', 'python_command', 'sudo']
+#
+# The default values are as follows. Uncomment and change to fit your needs.
+# See https://github.com/nvbn/thefuck#settings for more information.
+#
+
+"""

thefuck/main.py

@@ -7,11 +7,12 @@ from argparse import ArgumentParser
 from warnings import warn
 from pprint import pformat
 import sys
-from . import logs, types, shells
+from . import logs, types
+from .shells import shell
 from .conf import settings
 from .corrector import get_corrected_commands
 from .exceptions import EmptyCommand
-from .utils import get_installation_info
+from .utils import get_installation_info, get_alias
 from .ui import select_command
 
 
@@ -42,10 +43,10 @@ def print_alias(entry_point=True):
     else:
         position = 2
 
-    alias = shells.thefuck_alias()
+    alias = get_alias()
     if len(sys.argv) > position:
         alias = sys.argv[position]
-    print(shells.app_alias(alias))
+    print(shell.app_alias(alias))
 
 
 def how_to_configure_alias():
@@ -55,17 +56,17 @@ def how_to_configure_alias():
 
     """
     settings.init()
-    logs.how_to_configure_alias(shells.how_to_configure())
+    logs.how_to_configure_alias(shell.how_to_configure())
 
 
 def main():
     parser = ArgumentParser(prog='thefuck')
     version = get_installation_info().version
     parser.add_argument(
-        '-v', '--version',
-        action='version',
-        version='The Fuck {} using Python {}'.format(
-            version, sys.version.split()[0]))
+            '-v', '--version',
+            action='version',
+            version='The Fuck {} using Python {}'.format(
+                    version, sys.version.split()[0]))
     parser.add_argument('-a', '--alias',
                         action='store_true',
                         help='[custom-alias-name] prints alias for current shell')

thefuck/rules/apt_get.py

@@ -1,8 +1,10 @@
-from thefuck import shells
+from thefuck.specific.apt import apt_available
 from thefuck.utils import memoize
+from thefuck.shells import shell
 
 try:
     import CommandNotFound
+    enabled_by_default = apt_available
 except ImportError:
     enabled_by_default = False
 
@@ -26,5 +28,5 @@ def match(command):
 
 def get_new_command(command):
     name = get_package(command.script)
-    formatme = shells.and_('sudo apt-get install {}', '{}')
+    formatme = shell.and_('sudo apt-get install {}', '{}')
     return formatme.format(name, command.script)

thefuck/rules/apt_get_search.py

@@ -1,6 +1,9 @@
 import re
+from thefuck.specific.apt import apt_available
 from thefuck.utils import for_app
 
+enabled_by_default = apt_available
+
 
 @for_app('apt-get')
 def match(command):

thefuck/rules/apt_invalid_operation.py

@@ -1,7 +1,10 @@
 import subprocess
+from thefuck.specific.apt import apt_available
 from thefuck.specific.sudo import sudo_support
 from thefuck.utils import for_app, eager, replace_command
 
+enabled_by_default = apt_available
+
 
 @for_app('apt', 'apt-get', 'apt-cache')
 @sudo_support

thefuck/rules/brew_install.py

@@ -1,10 +1,9 @@
 import os
 import re
-from thefuck.utils import get_closest, replace_argument, which
-from thefuck.specific.brew import get_brew_path_prefix
+from thefuck.utils import get_closest, replace_argument
+from thefuck.specific.brew import get_brew_path_prefix, brew_available
 
-
-enabled_by_default = bool(which('brew'))
+enabled_by_default = brew_available
 
 
 def _get_formulas():

thefuck/rules/brew_unknown_command.py

@@ -1,12 +1,14 @@
 import os
 import re
 from thefuck.utils import get_closest, replace_command
-from thefuck.specific.brew import get_brew_path_prefix
+from thefuck.specific.brew import get_brew_path_prefix, brew_available
 
 BREW_CMD_PATH = '/Library/Homebrew/cmd'
 TAP_PATH = '/Library/Taps'
 TAP_CMD_PATH = '/%s/%s/cmd'
 
+enabled_by_default = brew_available
+
 
 def _get_brew_commands(brew_path_prefix):
     """To get brew default commands on local environment"""
@@ -53,7 +55,7 @@ def _brew_commands():
     if brew_path_prefix:
         try:
             return _get_brew_commands(brew_path_prefix) \
-                 + _get_brew_tap_specific_commands(brew_path_prefix)
+                   + _get_brew_tap_specific_commands(brew_path_prefix)
         except OSError:
             pass
 

thefuck/rules/brew_update_formula.py

@@ -0,0 +1,12 @@
+from thefuck.utils import for_app
+
+
+@for_app('brew', at_least=2)
+def match(command):
+    return ('update' in command.script
+            and "Error: This command updates brew itself" in command.stderr
+            and "Use 'brew upgrade <formula>'" in command.stderr)
+
+
+def get_new_command(command):
+    return command.script.replace('update', 'upgrade')

thefuck/rules/brew_upgrade.py

@@ -4,6 +4,9 @@
 # > brew upgrade
 # Warning: brew upgrade with no arguments will change behaviour soon!
 # It currently upgrades all formula but this will soon change to require '--all'.
+from thefuck.specific.brew import brew_available
+
+enabled_by_default = brew_available
 
 
 def match(command):

thefuck/rules/cd_mkdir.py

@@ -1,7 +1,7 @@
 import re
-from thefuck import shells
 from thefuck.utils import for_app
 from thefuck.specific.sudo import sudo_support
+from thefuck.shells import shell
 
 
 @sudo_support
@@ -14,5 +14,5 @@ def match(command):
 
 @sudo_support
 def get_new_command(command):
-    repl = shells.and_('mkdir -p \\1', 'cd \\1')
+    repl = shell.and_('mkdir -p \\1', 'cd \\1')
     return re.sub(r'^cd (.*)', repl, command.script)

thefuck/rules/chmod_x.py

@@ -0,0 +1,15 @@
+import os
+from thefuck.shells import shell
+
+
+def match(command):
+    return (command.script.startswith('./')
+            and 'permission denied' in command.stderr.lower()
+            and os.path.exists(command.script_parts[0])
+            and not os.access(command.script_parts[0], os.X_OK))
+
+
+def get_new_command(command):
+    return shell.and_(
+        'chmod +x {}'.format(command.script_parts[0][2:]),
+        command.script)

thefuck/rules/dirty_untar.py

@@ -1,7 +1,7 @@
 import tarfile
 import os
-from thefuck import shells
 from thefuck.utils import for_app
+from thefuck.shells import shell
 
 
 tar_extensions = ('.tar', '.tar.Z', '.tar.bz2', '.tar.gz', '.tar.lz',
@@ -33,8 +33,8 @@ def match(command):
 
 
 def get_new_command(command):
-    dir = shells.quote(_tar_file(command.script_parts)[1])
-    return shells.and_('mkdir -p {dir}', '{cmd} -C {dir}') \
+    dir = shell.quote(_tar_file(command.script_parts)[1])
+    return shell.and_('mkdir -p {dir}', '{cmd} -C {dir}') \
         .format(dir=dir, cmd=command.script)
 
 

thefuck/rules/dirty_unzip.py

@@ -1,7 +1,7 @@
 import os
 import zipfile
 from thefuck.utils import for_app
-from thefuck.shells import quote
+from thefuck.shells import shell
 
 
 def _is_bad_zip(file):
@@ -38,7 +38,8 @@ def match(command):
 
 
 def get_new_command(command):
-    return u'{} -d {}'.format(command.script, quote(_zip_file(command)[:-4]))
+    return u'{} -d {}'.format(
+            command.script, shell.quote(_zip_file(command)[:-4]))
 
 
 def side_effect(old_cmd, command):

thefuck/rules/fix_file.py

@@ -2,7 +2,7 @@ import re
 import os
 from thefuck.utils import memoize, default_settings
 from thefuck.conf import settings
-from thefuck import shells
+from thefuck.shells import shell
 
 
 # order is important: only the first match is considered
@@ -75,4 +75,4 @@ def get_new_command(command):
                                                  file=m.group('file'),
                                                  line=m.group('line'))
 
-    return shells.and_(editor_call, command.script)
+    return shell.and_(editor_call, command.script)

thefuck/rules/git_add.py

@@ -1,19 +1,18 @@
 import re
-from thefuck import shells
+from thefuck.shells import shell
 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 = shells.and_('git add -- {}', '{}')
+    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_branch_list.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.specific.git import git_support
 
 
@@ -11,4 +11,4 @@ def match(command):
 
 @git_support
 def get_new_command(command):
-    return shells.and_('git branch --delete list', 'git branch')
+    return shell.and_('git branch --delete list', 'git branch')

thefuck/rules/git_checkout.py

@@ -1,8 +1,9 @@
 import re
 import subprocess
-from thefuck import shells, utils
+from thefuck import utils
 from thefuck.utils import replace_argument
 from thefuck.specific.git import git_support
+from thefuck.shells import shell
 
 
 @git_support
@@ -34,5 +35,5 @@ def get_new_command(command):
     if closest_branch:
         return replace_argument(command.script, missing_file, closest_branch)
     else:
-        return shells.and_('git branch {}', '{}').format(
+        return shell.and_('git branch {}', '{}').format(
             missing_file, command.script)

thefuck/rules/git_help_aliased.py

@@ -0,0 +1,12 @@
+from thefuck.specific.git import git_support
+
+
+@git_support
+def match(command):
+    return 'help' in command.script and ' is aliased to ' in command.stdout
+
+
+@git_support
+def get_new_command(command):
+    aliased = command.stdout.split('`', 2)[2].split("'", 1)[0].split(' ', 1)[0]
+    return 'git help {}'.format(aliased)

thefuck/rules/git_pull.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.specific.git import git_support
 
 
@@ -14,4 +14,4 @@ def get_new_command(command):
     branch = line.split(' ')[-1]
     set_upstream = line.replace('<remote>', 'origin')\
                        .replace('<branch>', branch)
-    return shells.and_(set_upstream, command.script)
+    return shell.and_(set_upstream, command.script)

thefuck/rules/git_push_pull.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.utils import replace_argument
 from thefuck.specific.git import git_support
 
@@ -13,5 +13,5 @@ def match(command):
 
 @git_support
 def get_new_command(command):
-    return shells.and_(replace_argument(command.script, 'push', 'pull'),
-                       command.script)
+    return shell.and_(replace_argument(command.script, 'push', 'pull'),
+                      command.script)

thefuck/rules/git_remote_seturl_add.py

@@ -0,0 +1,14 @@
+from thefuck.utils import replace_argument
+from thefuck.specific.git import git_support
+
+
+@git_support
+def match(command):
+    return ('set-url' in command.script and 'fatal: No such remote' in command.stderr)
+
+
+def get_new_command(command):
+    return replace_argument(command.script, 'set-url', 'add')
+
+
+enabled_by_default = True

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/git_stash.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.specific.git import git_support
 
 
@@ -11,5 +11,5 @@ def match(command):
 
 @git_support
 def get_new_command(command):
-    formatme = shells.and_('git stash', '{}')
+    formatme = shell.and_('git stash', '{}')
     return formatme.format(command.script)

thefuck/rules/grep_arguments_order.py

@@ -0,0 +1,23 @@
+import os
+from thefuck.utils import for_app
+
+
+def _get_actual_file(parts):
+    for part in parts[1:]:
+        if os.path.isfile(part) or os.path.isdir(part):
+            return part
+
+
+@for_app('grep', 'egrep')
+def match(command):
+    return ': No such file or directory' in command.stderr \
+        and _get_actual_file(command.script_parts)
+
+
+def get_new_command(command):
+    actual_file = _get_actual_file(command.script_parts)
+    parts = command.script_parts[::]
+    # Moves file to the end of the script:
+    parts.remove(actual_file)
+    parts.append(actual_file)
+    return ' '.join(parts)

thefuck/rules/history.py

@@ -1,37 +1,15 @@
 from difflib import get_close_matches
-from thefuck.shells import get_history, thefuck_alias
-from thefuck.utils import get_closest, memoize, get_all_executables
-
-
-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 = get_history()
-    tf_alias = thefuck_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/ln_no_hard_link.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+"""Suggest creating symbolic link if hard link is not allowed.
+
+Example:
+> ln barDir barLink
+ln: ‘barDir’: hard link not allowed for directory
+
+--> ln -s barDir barLink
+"""
+
+import re
+from thefuck.specific.sudo import sudo_support
+
+
+@sudo_support
+def match(command):
+    return (command.stderr.endswith("hard link not allowed for directory") and
+            command.script.startswith("ln "))
+
+
+@sudo_support
+def get_new_command(command):
+    return re.sub(r'^ln ', 'ln -s ', command.script)

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/rules/no_such_file.py

@@ -1,5 +1,5 @@
 import re
-from thefuck import shells
+from thefuck.shells import shell
 
 
 patterns = (
@@ -26,5 +26,5 @@ def get_new_command(command):
             file = file[0]
             dir = file[0:file.rfind('/')]
 
-            formatme = shells.and_('mkdir -p {}', '{}')
+            formatme = shell.and_('mkdir -p {}', '{}')
             return formatme.format(dir, command.script)

thefuck/rules/npm_wrong_command.py

@@ -0,0 +1,39 @@
+from thefuck.utils import replace_argument, for_app, eager, get_closest
+from thefuck.specific.sudo import sudo_support
+
+
+def _get_wrong_command(script_parts):
+    commands = [part for part in script_parts[1:] if not part.startswith('-')]
+    if commands:
+        return commands[0]
+
+
+@sudo_support
+@for_app('npm')
+def match(command):
+    return (command.script_parts[0] == 'npm' and
+            'where <command> is one of:' in command.stdout and
+            _get_wrong_command(command.script_parts))
+
+
+@eager
+def _get_available_commands(stdout):
+    commands_listing = False
+    for line in stdout.split('\n'):
+        if line.startswith('where <command> is one of:'):
+            commands_listing = True
+        elif commands_listing:
+            if not line:
+                break
+
+            for command in line.split(', '):
+                stripped = command.strip()
+                if stripped:
+                    yield stripped
+
+
+def get_new_command(command):
+    npm_commands = _get_available_commands(command.stdout)
+    wrong_command = _get_wrong_command(command.script_parts)
+    fixed = get_closest(wrong_command, npm_commands)
+    return replace_argument(command.script, wrong_command, fixed)

thefuck/rules/pacman.py

@@ -1,5 +1,5 @@
 from thefuck.specific.archlinux import get_pkgfile, archlinux_env
-from thefuck import shells
+from thefuck.shells import shell
 
 
 def match(command):
@@ -9,7 +9,7 @@ def match(command):
 def get_new_command(command):
     packages = get_pkgfile(command.script)
 
-    formatme = shells.and_('{} -S {}', '{}')
+    formatme = shell.and_('{} -S {}', '{}')
     return [formatme.format(pacman, package, command.script)
             for package in packages]
 

thefuck/rules/sed_unterminated_s.py

@@ -1,5 +1,5 @@
 import shlex
-from thefuck.shells import quote
+from thefuck.shells import shell
 from thefuck.utils import for_app
 
 
@@ -15,4 +15,4 @@ def get_new_command(command):
         if e.startswith(('s/', '-es/')) and e[-1] != '/':
             script[i] += '/'
 
-    return ' '.join(map(quote, script))
+    return ' '.join(map(shell.quote, script))

thefuck/rules/sudo.py

@@ -1,12 +1,12 @@
 patterns = ['permission denied',
-            'EACCES',
-            'pkg: Insufficient privileges',
+            'eacces',
+            '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.',
-            'This operation requires root.',
+            'this command has to be run under the root user.',
+            'this operation requires root.',
             'requested operation requires superuser privilege',
             'must be run as root',
             'must run as root',
@@ -14,10 +14,12 @@ patterns = ['permission denied',
             'must be root',
             'need to be root',
             'need root',
+            'needs to be run as root',
             'only root can ',
-            'You don\'t have access to the history DB.',
+            'you don\'t have access to the history db.',
             'authentication is required',
-            'eDSPermissionError']
+            'edspermissionerror',
+            'you don\'t have write permissions']
 
 
 def match(command):
@@ -25,8 +27,8 @@ def match(command):
         return False
 
     for pattern in patterns:
-        if pattern.lower() in command.stderr.lower()\
-                or pattern.lower() in command.stdout.lower():
+        if pattern in command.stderr.lower()\
+                or pattern in command.stdout.lower():
             return True
     return False
 

thefuck/rules/switch_lang.py

@@ -1,6 +1,5 @@
 # -*- encoding: utf-8 -*-
-from thefuck.shells import thefuck_alias
-from thefuck.utils import memoize
+from thefuck.utils import memoize, get_alias
 
 target_layout = '''qwertyuiop[]asdfghjkl;'zxcvbnm,./QWERTYUIOP{}ASDFGHJKL:"ZXCVBNM<>?'''
 
@@ -35,7 +34,7 @@ def match(command):
         return False
     matched_layout = _get_matched_layout(command)
     return matched_layout and \
-           _switch_command(command, matched_layout) != thefuck_alias()
+           _switch_command(command, matched_layout) != get_alias()
 
 
 def get_new_command(command):

thefuck/rules/touch.py

@@ -1,5 +1,5 @@
 import re
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.utils import for_app
 
 
@@ -10,4 +10,4 @@ def match(command):
 
 def get_new_command(command):
     path = re.findall(r"touch: cannot touch '(.+)/.+':", command.stderr)[0]
-    return shells.and_(u'mkdir -p {}'.format(path), command.script)
+    return shell.and_(u'mkdir -p {}'.format(path), command.script)

thefuck/rules/tsuru_login.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.utils import for_app
 
 
@@ -9,4 +9,4 @@ def match(command):
 
 
 def get_new_command(command):
-    return shells.and_('tsuru login', command.script)
+    return shell.and_('tsuru login', command.script)

thefuck/rules/vagrant_up.py

@@ -1,4 +1,4 @@
-from thefuck import shells
+from thefuck.shells import shell
 from thefuck.utils import for_app
 
 
@@ -13,8 +13,8 @@ def get_new_command(command):
     if len(cmds) >= 3:
         machine = cmds[2]
 
-    startAllInstances = shells.and_("vagrant up", command.script)
+    startAllInstances = shell.and_("vagrant up", command.script)
     if machine is None:
         return startAllInstances
     else:
-        return [shells.and_("vagrant up " + machine, command.script), startAllInstances]
+        return [shell.and_("vagrant up " + machine, command.script), startAllInstances]

thefuck/shells.py

@@ -1,334 +0,0 @@
-"""Module with shell specific actions, each shell class should
-implement `from_shell`, `to_shell`, `app_alias`, `put_to_history` and
-`get_aliases` methods.
-
-"""
-from collections import defaultdict
-from psutil import Process
-from subprocess import Popen, PIPE
-from time import time
-import io
-import os
-import shlex
-import sys
-import six
-from .utils import DEVNULL, memoize, cache
-from .conf import settings
-from . import logs
-
-
-class Generic(object):
-    def get_aliases(self):
-        return {}
-
-    def _expand_aliases(self, command_script):
-        aliases = self.get_aliases()
-        binary = command_script.split(' ')[0]
-        if binary in aliases:
-            return command_script.replace(binary, aliases[binary], 1)
-        else:
-            return command_script
-
-    def from_shell(self, command_script):
-        """Prepares command before running in app."""
-        return self._expand_aliases(command_script)
-
-    def to_shell(self, command_script):
-        """Prepares command for running in shell."""
-        return command_script
-
-    def app_alias(self, fuck):
-        return "alias {0}='TF_ALIAS={0} PYTHONIOENCODING=utf-8 " \
-               "eval $(thefuck $(fc -ln -1))'".format(fuck)
-
-    def _get_history_file_name(self):
-        return ''
-
-    def _get_history_line(self, command_script):
-        return ''
-
-    def put_to_history(self, command_script):
-        """Puts command script to shell history."""
-        history_file_name = self._get_history_file_name()
-        if os.path.isfile(history_file_name):
-            with open(history_file_name, 'a') as history:
-                entry = self._get_history_line(command_script)
-                if six.PY2:
-                    history.write(entry.encode('utf-8'))
-                else:
-                    history.write(entry)
-
-    def get_history(self):
-        """Returns list of history entries."""
-        history_file_name = self._get_history_file_name()
-        if os.path.isfile(history_file_name):
-            with io.open(history_file_name, 'r',
-                         encoding='utf-8', errors='ignore') as history_file:
-
-                lines = history_file.readlines()
-                if settings.history_limit:
-                    lines = lines[-settings.history_limit:]
-
-                for line in lines:
-                    prepared = self._script_from_history(line) \
-                        .strip()
-                    if prepared:
-                        yield prepared
-
-    def and_(self, *commands):
-        return u' && '.join(commands)
-
-    def how_to_configure(self):
-        return
-
-    def split_command(self, command):
-        """Split the command using shell-like syntax."""
-        if six.PY2:
-            return [s.decode('utf8') for s in shlex.split(command.encode('utf8'))]
-        return shlex.split(command)
-
-    def quote(self, s):
-        """Return a shell-escaped version of the string s."""
-
-        if six.PY2:
-            from pipes import quote
-        else:
-            from shlex import quote
-
-        return quote(s)
-
-    def _script_from_history(self, line):
-        return line
-
-
-class Bash(Generic):
-    def app_alias(self, fuck):
-        return "TF_ALIAS={0} alias {0}='PYTHONIOENCODING=utf-8 " \
-               "eval $(thefuck $(fc -ln -1));" \
-               " history -r'".format(fuck)
-
-    def _parse_alias(self, alias):
-        name, value = alias.replace('alias ', '', 1).split('=', 1)
-        if value[0] == value[-1] == '"' or value[0] == value[-1] == "'":
-            value = value[1:-1]
-        return name, value
-
-    @memoize
-    @cache('.bashrc', '.bash_profile')
-    def get_aliases(self):
-        proc = Popen(['bash', '-ic', 'alias'], stdout=PIPE, stderr=DEVNULL)
-        return dict(
-                self._parse_alias(alias)
-                for alias in proc.stdout.read().decode('utf-8').split('\n')
-                if alias and '=' in alias)
-
-    def _get_history_file_name(self):
-        return os.environ.get("HISTFILE",
-                              os.path.expanduser('~/.bash_history'))
-
-    def _get_history_line(self, command_script):
-        return u'{}\n'.format(command_script)
-
-    def how_to_configure(self):
-        if os.path.join(os.path.expanduser('~'), '.bashrc'):
-            config = '~/.bashrc'
-        elif os.path.join(os.path.expanduser('~'), '.bash_profile'):
-            config = '~/.bashrc'
-        else:
-            config = 'bash config'
-        return 'eval $(thefuck --alias)', config
-
-
-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']
-
-    def app_alias(self, fuck):
-        return ('function {0} -d "Correct your previous console command"\n'
-                '  set -l exit_code $status\n'
-                '  set -l fucked_up_command $history[1]\n'
-                '  env TF_ALIAS={0} PYTHONIOENCODING=utf-8'
-                '    thefuck $fucked_up_command | read -l unfucked_command\n'
-                '  if [ "$unfucked_command" != "" ]\n'
-                '    eval $unfucked_command\n'
-                '    if test $exit_code -ne 0\n'
-                '      history --delete $fucked_up_command\n'
-                '      history --merge ^ /dev/null\n'
-                '      return 0\n'
-                '    end\n'
-                '  end\n'
-                'end').format(fuck)
-
-    @memoize
-    def get_aliases(self):
-        overridden = self._get_overridden_aliases()
-        proc = Popen(['fish', '-ic', 'functions'], stdout=PIPE, stderr=DEVNULL)
-        functions = proc.stdout.read().decode('utf-8').strip().split('\n')
-        return {func: func for func in functions if func not in overridden}
-
-    def _expand_aliases(self, command_script):
-        aliases = self.get_aliases()
-        binary = command_script.split(' ')[0]
-        if binary in aliases:
-            return u'fish -ic "{}"'.format(command_script.replace('"', r'\"'))
-        else:
-            return command_script
-
-    def from_shell(self, command_script):
-        """Prepares command before running in app."""
-        return self._expand_aliases(command_script)
-
-    def _get_history_file_name(self):
-        return os.path.expanduser('~/.config/fish/fish_history')
-
-    def _get_history_line(self, command_script):
-        return u'- cmd: {}\n   when: {}\n'.format(command_script, int(time()))
-
-    def _script_from_history(self, line):
-        if '- cmd: ' in line:
-            return line.split('- cmd: ', 1)[1]
-        else:
-            return ''
-
-    def and_(self, *commands):
-        return u'; and '.join(commands)
-
-    def how_to_configure(self):
-        return 'eval thefuck --alias', '~/.config/fish/config.fish'
-
-
-class Zsh(Generic):
-    def app_alias(self, fuck):
-        return "TF_ALIAS={0}" \
-               " alias {0}='PYTHONIOENCODING=utf-8 " \
-               "eval $(thefuck $(fc -ln -1 | tail -n 1));" \
-               " fc -R'".format(fuck)
-
-    def _parse_alias(self, alias):
-        name, value = alias.split('=', 1)
-        if value[0] == value[-1] == '"' or value[0] == value[-1] == "'":
-            value = value[1:-1]
-        return name, value
-
-    @memoize
-    @cache('.zshrc')
-    def get_aliases(self):
-        proc = Popen(['zsh', '-ic', 'alias'], stdout=PIPE, stderr=DEVNULL)
-        return dict(
-                self._parse_alias(alias)
-                for alias in proc.stdout.read().decode('utf-8').split('\n')
-                if alias and '=' in alias)
-
-    def _get_history_file_name(self):
-        return os.environ.get("HISTFILE",
-                              os.path.expanduser('~/.zsh_history'))
-
-    def _get_history_line(self, command_script):
-        return u': {}:0;{}\n'.format(int(time()), command_script)
-
-    def _script_from_history(self, line):
-        if ';' in line:
-            return line.split(';', 1)[1]
-        else:
-            return ''
-
-    def how_to_configure(self):
-        return 'eval $(thefuck --alias)', '~/.zshrc'
-
-
-class Tcsh(Generic):
-    def app_alias(self, fuck):
-        return ("alias {0} 'setenv TF_ALIAS {0} && "
-                "set fucked_cmd=`history -h 2 | head -n 1` && "
-                "eval `thefuck ${{fucked_cmd}}`'").format(fuck)
-
-    def _parse_alias(self, alias):
-        name, value = alias.split("\t", 1)
-        return name, value
-
-    @memoize
-    def get_aliases(self):
-        proc = Popen(['tcsh', '-ic', 'alias'], stdout=PIPE, stderr=DEVNULL)
-        return dict(
-                self._parse_alias(alias)
-                for alias in proc.stdout.read().decode('utf-8').split('\n')
-                if alias and '\t' in alias)
-
-    def _get_history_file_name(self):
-        return os.environ.get("HISTFILE",
-                              os.path.expanduser('~/.history'))
-
-    def _get_history_line(self, command_script):
-        return u'#+{}\n{}\n'.format(int(time()), command_script)
-
-    def how_to_configure(self):
-        return 'eval `thefuck --alias`', '~/.tcshrc'
-
-
-shells = defaultdict(Generic, {
-    'bash': Bash(),
-    'fish': Fish(),
-    'zsh': Zsh(),
-    'csh': Tcsh(),
-    'tcsh': Tcsh()})
-
-
-@memoize
-def _get_shell():
-    try:
-        shell = Process(os.getpid()).parent().name()
-    except TypeError:
-        shell = Process(os.getpid()).parent.name
-    return shells[shell]
-
-
-def from_shell(command):
-    return _get_shell().from_shell(command)
-
-
-def to_shell(command):
-    return _get_shell().to_shell(command)
-
-
-def app_alias(alias):
-    return _get_shell().app_alias(alias)
-
-
-def thefuck_alias():
-    return os.environ.get('TF_ALIAS', 'fuck')
-
-
-def put_to_history(command):
-    try:
-        return _get_shell().put_to_history(command)
-    except IOError:
-        logs.exception("Can't update history", sys.exc_info())
-
-
-def and_(*commands):
-    return _get_shell().and_(*commands)
-
-
-def get_aliases():
-    return list(_get_shell().get_aliases().keys())
-
-
-def split_command(command):
-    return _get_shell().split_command(command)
-
-
-def quote(s):
-    return _get_shell().quote(s)
-
-
-@memoize
-def get_history():
-    return list(_get_shell().get_history())
-
-
-def how_to_configure():
-    return _get_shell().how_to_configure()

thefuck/shells/__init__.py

@@ -0,0 +1,44 @@
+"""Package with shell specific actions, each shell class should
+implement `from_shell`, `to_shell`, `app_alias`, `put_to_history` and
+`get_aliases` methods.
+"""
+import os
+from psutil import Process
+from .bash import Bash
+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,
+          'powershell': Powershell}
+
+
+def _get_shell():
+    proc = Process(os.getpid())
+
+    while proc is not 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/bash.py

@@ -0,0 +1,47 @@
+import os
+from ..conf import settings
+from ..utils import memoize
+from .generic import Generic
+
+
+class Bash(Generic):
+    def app_alias(self, fuck):
+        # It is VERY important to have the variables declared WITHIN the alias
+        alias = "alias {0}='TF_CMD=$(TF_ALIAS={0}" \
+                " PYTHONIOENCODING=utf-8" \
+                " TF_SHELL_ALIASES=$(alias)" \
+                " thefuck $(fc -ln -1)) &&" \
+                " eval $TF_CMD".format(fuck)
+
+        if settings.alter_history:
+            return alias + " && history -s $TF_CMD'"
+        else:
+            return alias + "'"
+
+    def _parse_alias(self, alias):
+        name, value = alias.replace('alias ', '', 1).split('=', 1)
+        if value[0] == value[-1] == '"' or value[0] == value[-1] == "'":
+            value = value[1:-1]
+        return name, value
+
+    @memoize
+    def get_aliases(self):
+        raw_aliases = os.environ.get('TF_SHELL_ALIASES', '').split('\n')
+        return dict(self._parse_alias(alias)
+                    for alias in raw_aliases if alias and '=' in alias)
+
+    def _get_history_file_name(self):
+        return os.environ.get("HISTFILE",
+                              os.path.expanduser('~/.bash_history'))
+
+    def _get_history_line(self, command_script):
+        return u'{}\n'.format(command_script)
+
+    def how_to_configure(self):
+        if os.path.join(os.path.expanduser('~'), '.bashrc'):
+            config = '~/.bashrc'
+        elif os.path.join(os.path.expanduser('~'), '.bash_profile'):
+            config = '~/.bashrc'
+        else:
+            config = 'bash config'
+        return 'eval $(thefuck --alias)', config

thefuck/shells/fish.py

@@ -0,0 +1,87 @@
+from subprocess import Popen, PIPE
+from time import time
+import os
+import sys
+import six
+from .. import logs
+from ..utils import DEVNULL, memoize, cache
+from .generic import Generic
+
+
+class Fish(Generic):
+    def _get_overridden_aliases(self):
+        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
+        return ('function {0} -d "Correct your previous console command"\n'
+                '  set -l fucked_up_command $history[1]\n'
+                '  env TF_ALIAS={0} PYTHONIOENCODING=utf-8'
+                ' thefuck $fucked_up_command | read -l unfucked_command\n'
+                '  if [ "$unfucked_command" != "" ]\n'
+                '    eval $unfucked_command\n'
+                '    history --delete $fucked_up_command\n'
+                '    history --merge ^ /dev/null\n'
+                '  end\n'
+                'end').format(fuck)
+
+    @memoize
+    @cache('.config/fish/config.fish', '.config/fish/functions')
+    def get_aliases(self):
+        overridden = self._get_overridden_aliases()
+        proc = Popen(['fish', '-ic', 'functions'], stdout=PIPE, stderr=DEVNULL)
+        functions = proc.stdout.read().decode('utf-8').strip().split('\n')
+        return {func: func for func in functions if func not in overridden}
+
+    def _expand_aliases(self, command_script):
+        aliases = self.get_aliases()
+        binary = command_script.split(' ')[0]
+        if binary in aliases:
+            return u'fish -ic "{}"'.format(command_script.replace('"', r'\"'))
+        else:
+            return command_script
+
+    def from_shell(self, command_script):
+        """Prepares command before running in app."""
+        return self._expand_aliases(command_script)
+
+    def _get_history_file_name(self):
+        return os.path.expanduser('~/.config/fish/fish_history')
+
+    def _get_history_line(self, command_script):
+        return u'- cmd: {}\n   when: {}\n'.format(command_script, int(time()))
+
+    def _script_from_history(self, line):
+        if '- cmd: ' in line:
+            return line.split('- cmd: ', 1)[1]
+        else:
+            return ''
+
+    def and_(self, *commands):
+        return u'; and '.join(commands)
+
+    def how_to_configure(self):
+        return (r"eval (thefuck --alias | tr '\n' ';')",
+                '~/.config/fish/config.fish')
+
+    def put_to_history(self, command):
+        try:
+            return self._put_to_history(command)
+        except IOError:
+            logs.exception("Can't update history", sys.exc_info())
+
+    def _put_to_history(self, command_script):
+        """Puts command script to shell history."""
+        history_file_name = self._get_history_file_name()
+        if os.path.isfile(history_file_name):
+            with open(history_file_name, 'a') as history:
+                entry = self._get_history_line(command_script)
+                if six.PY2:
+                    history.write(entry.encode('utf-8'))
+                else:
+                    history.write(entry)

thefuck/shells/generic.py

@@ -0,0 +1,91 @@
+import io
+import os
+import shlex
+import six
+from ..utils import memoize
+from ..conf import settings
+
+
+class Generic(object):
+    def get_aliases(self):
+        return {}
+
+    def _expand_aliases(self, command_script):
+        aliases = self.get_aliases()
+        binary = command_script.split(' ')[0]
+        if binary in aliases:
+            return command_script.replace(binary, aliases[binary], 1)
+        else:
+            return command_script
+
+    def from_shell(self, command_script):
+        """Prepares command before running in app."""
+        return self._expand_aliases(command_script)
+
+    def to_shell(self, command_script):
+        """Prepares command for running in shell."""
+        return command_script
+
+    def app_alias(self, fuck):
+        return "alias {0}='eval $(TF_ALIAS={0} PYTHONIOENCODING=utf-8 " \
+               "thefuck $(fc -ln -1))'".format(fuck)
+
+    def _get_history_file_name(self):
+        return ''
+
+    def _get_history_line(self, command_script):
+        return ''
+
+    @memoize
+    def get_history(self):
+        return list(self._get_history_lines())
+
+    def _get_history_lines(self):
+        """Returns list of history entries."""
+        history_file_name = self._get_history_file_name()
+        if os.path.isfile(history_file_name):
+            with io.open(history_file_name, 'r',
+                         encoding='utf-8', errors='ignore') as history_file:
+
+                lines = history_file.readlines()
+                if settings.history_limit:
+                    lines = lines[-settings.history_limit:]
+
+                for line in lines:
+                    prepared = self._script_from_history(line) \
+                        .strip()
+                    if prepared:
+                        yield prepared
+
+    def and_(self, *commands):
+        return u' && '.join(commands)
+
+    def how_to_configure(self):
+        return
+
+    def split_command(self, command):
+        """Split the command using shell-like syntax."""
+        if six.PY2:
+            return [s.decode('utf8') for s in shlex.split(command.encode('utf8'))]
+        return shlex.split(command)
+
+    def quote(self, s):
+        """Return a shell-escaped version of the string s."""
+
+        if six.PY2:
+            from pipes import quote
+        else:
+            from shlex import quote
+
+        return quote(s)
+
+    def _script_from_history(self, line):
+        return line
+
+    def put_to_history(self, command):
+        """Adds fixed command to shell history.
+
+        In most of shells we change history on shell-level, but not
+        all shells support it (Fish).
+
+        """

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/shells/tcsh.py

@@ -0,0 +1,34 @@
+from subprocess import Popen, PIPE
+from time import time
+import os
+from ..utils import DEVNULL, memoize
+from .generic import Generic
+
+
+class Tcsh(Generic):
+    def app_alias(self, fuck):
+        return ("alias {0} 'setenv TF_ALIAS {0} && "
+                "set fucked_cmd=`history -h 2 | head -n 1` && "
+                "eval `thefuck ${{fucked_cmd}}`'").format(fuck)
+
+    def _parse_alias(self, alias):
+        name, value = alias.split("\t", 1)
+        return name, value
+
+    @memoize
+    def get_aliases(self):
+        proc = Popen(['tcsh', '-ic', 'alias'], stdout=PIPE, stderr=DEVNULL)
+        return dict(
+                self._parse_alias(alias)
+                for alias in proc.stdout.read().decode('utf-8').split('\n')
+                if alias and '\t' in alias)
+
+    def _get_history_file_name(self):
+        return os.environ.get("HISTFILE",
+                              os.path.expanduser('~/.history'))
+
+    def _get_history_line(self, command_script):
+        return u'#+{}\n{}\n'.format(int(time()), command_script)
+
+    def how_to_configure(self):
+        return 'eval `thefuck --alias`', '~/.tcshrc'

thefuck/shells/zsh.py

@@ -0,0 +1,48 @@
+from time import time
+import os
+from ..conf import settings
+from ..utils import memoize
+from .generic import Generic
+
+
+class Zsh(Generic):
+    def app_alias(self, alias_name):
+        # It is VERY important to have the variables declared WITHIN the alias
+        alias = "alias {0}='TF_CMD=$(TF_ALIAS={0}" \
+                " PYTHONIOENCODING=utf-8" \
+                " TF_SHELL_ALIASES=$(alias)" \
+                " thefuck $(fc -ln -1 | tail -n 1)) &&" \
+                " eval $TF_CMD".format(alias_name)
+
+        if settings.alter_history:
+            return alias + " && print -s $TF_CMD'"
+        else:
+            return alias + "'"
+
+    def _parse_alias(self, alias):
+        name, value = alias.split('=', 1)
+        if value[0] == value[-1] == '"' or value[0] == value[-1] == "'":
+            value = value[1:-1]
+        return name, value
+
+    @memoize
+    def get_aliases(self):
+        raw_aliases = os.environ.get('TF_SHELL_ALIASES', '').split('\n')
+        return dict(self._parse_alias(alias)
+                    for alias in raw_aliases if alias and '=' in alias)
+
+    def _get_history_file_name(self):
+        return os.environ.get("HISTFILE",
+                              os.path.expanduser('~/.zsh_history'))
+
+    def _get_history_line(self, command_script):
+        return u': {}:0;{}\n'.format(int(time()), command_script)
+
+    def _script_from_history(self, line):
+        if ';' in line:
+            return line.split(';', 1)[1]
+        else:
+            return ''
+
+    def how_to_configure(self):
+        return 'eval $(thefuck --alias)', '~/.zshrc'

thefuck/specific/apt.py

@@ -0,0 +1,3 @@
+from thefuck.utils import which
+
+apt_available = bool(which('apt-get'))

thefuck/specific/brew.py

@@ -2,7 +2,7 @@ import subprocess
 from ..utils import memoize, which
 
 
-enabled_by_default = bool(which('brew'))
+brew_available = bool(which('brew'))
 
 
 @memoize

thefuck/specific/git.py

@@ -1,7 +1,7 @@
 import re
 from decorator import decorator
 from ..utils import is_app
-from ..shells import quote, split_command
+from ..shells import shell
 
 
 @decorator
@@ -23,7 +23,8 @@ def git_support(fn, command):
         #     'commit' '--amend'
         # which is surprising and does not allow to easily test for
         # eg. 'git commit'
-        expansion = ' '.join(map(quote, split_command(search.group(2))))
+        expansion = ' '.join(shell.quote(part)
+                             for part in shell.split_command(search.group(2)))
         new_script = command.script.replace(alias, expansion)
 
         command = command.update(script=new_script)

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

@@ -4,8 +4,10 @@ import os
 import sys
 import six
 from psutil import Process, TimeoutExpired
-from . import logs, shells
-from .conf import settings, DEFAULT_PRIORITY, ALL_ENABLED
+from . import logs
+from .shells import shell
+from .conf import settings
+from .const import DEFAULT_PRIORITY, ALL_ENABLED
 from .exceptions import EmptyCommand
 from .utils import compatibility_call
 
@@ -29,7 +31,7 @@ class Command(object):
     def script_parts(self):
         if not hasattr(self, '_script_parts'):
             try:
-                self._script_parts = shells.split_command(self.script)
+                self._script_parts = shell.split_command(self.script)
             except Exception:
                 logs.debug(u"Can't split command script {} because:\n {}".format(
                         self, sys.exc_info()))
@@ -93,7 +95,7 @@ class Command(object):
             script = ' '.join(raw_script)
 
         script = script.strip()
-        return shells.from_shell(script)
+        return shell.from_shell(script)
 
     @classmethod
     def from_raw_script(cls, raw_script):
@@ -112,7 +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')
@@ -279,6 +281,8 @@ class CorrectedCommand(object):
         if self.side_effect:
             compatibility_call(self.side_effect, old_cmd, self.script)
         if settings.alter_history:
-            shells.put_to_history(self.script)
+            shell.put_to_history(self.script)
         # This depends on correct setting of PYTHONIOENCODING by the alias:
+        logs.debug(u'PYTHONIOENCODING: {}'.format(
+            os.environ.get('PYTHONIOENCODING', '!!not-set!!')))
         print(self.script)

thefuck/ui.py

@@ -6,11 +6,6 @@ from .exceptions import NoRuleMatched
 from .system import get_key
 from . import logs, const
 
-SELECT = 0
-ABORT = 1
-PREVIOUS = 2
-NEXT = 3
-
 
 def read_actions():
     """Yields actions for pressed keys."""
@@ -18,13 +13,13 @@ def read_actions():
         key = get_key()
 
         if key in (const.KEY_UP, 'k'):
-            yield PREVIOUS
+            yield const.ACTION_PREVIOUS
         elif key in (const.KEY_DOWN, 'j'):
-            yield NEXT
+            yield const.ACTION_NEXT
         elif key == const.KEY_CTRL_C:
-            yield ABORT
+            yield const.ACTION_ABORT
         elif key in ('\n', '\r'):
-            yield SELECT
+            yield const.ACTION_SELECT
 
 
 class CommandSelector(object):
@@ -83,15 +78,15 @@ def select_command(corrected_commands):
     logs.confirm_text(selector.value)
 
     for action in read_actions():
-        if action == SELECT:
+        if action == const.ACTION_SELECT:
             sys.stderr.write('\n')
             return selector.value
-        elif action == ABORT:
+        elif action == const.ACTION_ABORT:
             logs.failed('\nAborted')
             return
-        elif action == PREVIOUS:
+        elif action == const.ACTION_PREVIOUS:
             selector.previous()
             logs.confirm_text(selector.value)
-        elif action == NEXT:
+        elif action == const.ACTION_NEXT:
             selector.next()
             logs.confirm_text(selector.value)

thefuck/utils.py

@@ -1,9 +1,9 @@
-import dbm
 import os
 import pickle
 import pkg_resources
 import re
 import shelve
+import six
 from .conf import settings
 from contextlib import closing
 from decorator import decorator
@@ -15,6 +15,13 @@ from warnings import warn
 
 DEVNULL = open(os.devnull, 'w')
 
+if six.PY2:
+    import anydbm
+    shelve_open_error = anydbm.error
+else:
+    import dbm
+    shelve_open_error = dbm.error
+
 
 def memoize(fn):
     """Caches previous calls to the function."""
@@ -40,22 +47,26 @@ memoize.disabled = False
 @memoize
 def which(program):
     """Returns `program` path or `None`."""
+    try:
+        from shutil import which
 
-    def is_exe(fpath):
-        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
+        return which(program)
+    except ImportError:
+        def is_exe(fpath):
+            return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
 
-    fpath, fname = os.path.split(program)
-    if fpath:
-        if is_exe(program):
-            return program
-    else:
-        for path in os.environ["PATH"].split(os.pathsep):
-            path = path.strip('"')
-            exe_file = os.path.join(path, program)
-            if is_exe(exe_file):
-                return exe_file
+        fpath, fname = os.path.split(program)
+        if fpath:
+            if is_exe(program):
+                return program
+        else:
+            for path in os.environ["PATH"].split(os.pathsep):
+                path = path.strip('"')
+                exe_file = os.path.join(path, program)
+                if is_exe(exe_file):
+                    return exe_file
 
-    return None
+        return None
 
 
 def default_settings(params):
@@ -87,7 +98,7 @@ def get_closest(word, possibilities, n=3, cutoff=0.6, fallback_to_first=True):
 
 @memoize
 def get_all_executables():
-    from thefuck.shells import thefuck_alias, get_aliases
+    from thefuck.shells import shell
 
     def _safe(fn, fallback):
         try:
@@ -95,7 +106,7 @@ def get_all_executables():
         except OSError:
             return fallback
 
-    tf_alias = thefuck_alias()
+    tf_alias = get_alias()
     tf_entry_points = get_installation_info().get_entry_map()\
                                              .get('console_scripts', {})\
                                              .keys()
@@ -104,7 +115,7 @@ def get_all_executables():
             for exe in _safe(lambda: list(Path(path).iterdir()), [])
             if not _safe(exe.is_dir, True)
             and exe.name not in tf_entry_points]
-    aliases = [alias for alias in get_aliases() if alias != tf_alias]
+    aliases = [alias for alias in shell.get_aliases() if alias != tf_alias]
     return bins + aliases
 
 
@@ -217,8 +228,8 @@ def cache(*depends_on):
                     value = fn(*args, **kwargs)
                     db[key] = {'etag': etag, 'value': value}
                     return value
-        except dbm.error:
-            # Caused when going from Python 2 to Python 3
+        except (shelve_open_error, ImportError):
+            # Caused when switching between Python versions
             warn("Removing possibly out-dated cache")
             os.remove(cache_path)
 
@@ -254,3 +265,28 @@ def compatibility_call(fn, *args):
 
 def get_installation_info():
     return pkg_resources.require('thefuck')[0]
+
+
+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]