Bump to 1.44

Conflicts:
	README.md

.travis.yml

@@ -6,4 +6,4 @@ python:
 install:
   - python setup.py develop
   - pip install -r requirements.txt
-script: py.test
+script: py.test -v

README.md

@@ -118,6 +118,11 @@ Or in your `.zshrc`:
 alias fuck='eval $(thefuck $(fc -ln -1 | tail -n 1)); fc -R'
 ```
 
+If you are using `tcsh`:
+```tcsh
+alias fuck 'set fucked_cmd=`history -h 2 | head -n 1` && eval `thefuck ${fucked_cmd}`'
+```
+
 Alternatively, you can redirect the output of `thefuck-alias`:
 
 ```bash
@@ -140,37 +145,52 @@ sudo pip install thefuck --upgrade
 The Fuck tries to match a rule for the previous command, creates a new command
 using the matched rule and runs it. Rules enabled by default are as follows:
 
-* `brew_unknown_command` – fixes wrong brew commands, for example `brew docto/brew doctor`;
+* `cd_correction` – spellchecks and correct failed cd commands;
-* `cpp11` – add missing `-std=c++11` to `g++` or `clang++`;
-* `cd_parent` – changes `cd..` to `cd ..`;
 * `cd_mkdir` – creates directories before cd'ing into them;
+* `cd_parent` – changes `cd..` to `cd ..`;
+* `composer_not_command` – fixes composer command name;
 * `cp_omitting_directory` – adds `-a` when you `cp` directory;
+* `cpp11` – add missing `-std=c++11` to `g++` or `clang++`;
 * `dry` – fix repetitions like "git git push";
+* `django_south_ghost` – adds `--delete-ghost-migrations` to failed because ghosts django south migration;
+* `django_south_merge` – adds `--merge` to inconsistent django south migration;
 * `fix_alt_space` – replaces Alt+Space with Space character;
+* `javac` – appends missing `.java` when compiling Java files;
+* `java` – removes `.java` extension when running Java programs;
 * `git_add` – fix *"Did you forget to 'git add'?"*;
 * `git_checkout` – creates the branch before checking-out;
 * `git_no_command` – fixes wrong git commands like `git brnch`;
+* `git_pull` – sets upstream before executing previous `git pull`;
 * `git_push` – adds `--set-upstream origin $branch` to previous failed `git push`;
+* `git_stash` – stashes you local modifications before rebasing or switching branch;
+* `grep_recursive` – adds `-r` when you trying to grep directory; 
 * `has_exists_script` – prepends `./` when script/binary exists;
 * `lein_not_task` – fixes wrong `lein` tasks like `lein rpl`;
+* `ls_lah` – adds -lah to ls;
+* `man` – change manual section;
+* `man_no_space` – fixes man commands without spaces, for example `mandiff`;
 * `mkdir_p` – adds `-p` when you trying to create directory without parent;
 * `no_command` – fixes wrong console commands, for example `vom/vim`;
-* `man_no_space` – fixes man commands without spaces, for example `mandiff`;
+* `no_such_file` – creates missing directories with `mv` and `cp` commands;
-* `pacman` – installs app with `pacman` or `yaourt` if it is not installed;
+* `open` – prepends `http` to address passed to `open`;
 * `pip_unknown_command` – fixes wrong pip commands, for example `pip instatl/pip install`;
 * `python_command` – prepends `python` when you trying to run not executable/without `./` python script;
-* `sl_ls` – changes `sl` to `ls`;
 * `rm_dir` – adds `-rf` when you trying to remove directory;
+* `sl_ls` – changes `sl` to `ls`;
 * `ssh_known_hosts` – removes host from `known_hosts` on warning;
 * `sudo` – prepends `sudo` to previous command if it failed because of permissions;
 * `switch_layout` – switches command from your local layout to en;
+* `whois` – fixes `whois` command.
+
+Enabled by default only on specific platforms:
+
 * `apt_get` – installs app from apt if it not installed;
 * `brew_install` – fixes formula name for `brew install`;
-* `composer_not_command` – fixes composer command name.
+* `brew_unknown_command` – fixes wrong brew commands, for example `brew docto/brew doctor`;
+* `pacman` – installs app with `pacman` or `yaourt` if it is not installed.
 
 Bundled, but not enabled by default:
 
-* `ls_lah` – adds -lah to ls;
 * `rm_root` – adds `--no-preserve-root` to `rm -rf /` command.
 
 ## Creating your own rules

setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 
 
-VERSION = '1.40'
+VERSION = '1.44'
 
 
 setup(name='thefuck',

tests/rules/conftest.py

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

tests/rules/test_apt_get.py

@@ -0,0 +1,59 @@
+import pytest
+from mock import Mock, patch
+from thefuck.rules import apt_get
+from thefuck.rules.apt_get import match, get_new_command
+from tests.utils import 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')
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr='vim: command not found')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, return_value', [
+    (Command(script='vim', stderr='vim: command not found'),
+     [('vim', 'main'), ('vim-tiny', 'main')])])
+@patch('thefuck.rules.apt_get.CommandNotFound', create=True)
+@patch.multiple(apt_get, create=True, apt_get='apt_get')
+def test_match_mocked(cmdnf_mock, command, return_value):
+    get_packages = Mock(return_value=return_value)
+    cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
+    assert match(command, None)
+    assert cmdnf_mock.CommandNotFound.called
+    assert get_packages.called
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr=''), Command()])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+# 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, new_command', [
+    (Command('vim'), 'sudo apt-get install vim && vim'),
+    (Command('convert'), 'sudo apt-get install imagemagick && convert')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command
+
+
+@pytest.mark.parametrize('command, new_command, return_value', [
+    (Command('vim'), 'sudo apt-get install vim && vim',
+     [('vim', 'main'), ('vim-tiny', 'main')]),
+    (Command('convert'), 'sudo apt-get install imagemagick && convert',
+     [('imagemagick', 'main'),
+      ('graphicsmagick-imagemagick-compat', 'universe')])])
+@patch('thefuck.rules.apt_get.CommandNotFound', create=True)
+@patch.multiple(apt_get, create=True, apt_get='apt_get')
+def test_get_new_command_mocked(cmdnf_mock, command, new_command, return_value):
+    get_packages = Mock(return_value=return_value)
+    cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
+    assert get_new_command(command, None) == new_command
+    assert cmdnf_mock.CommandNotFound.called
+    assert get_packages.called

tests/rules/test_django_south_ghost.py

@@ -0,0 +1,53 @@
+import pytest
+from thefuck.rules.django_south_ghost import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''Traceback (most recent call last):
+  File "/home/nvbn/work/.../bin/python", line 42, in <module>
+    exec(compile(__file__f.read(), __file__, "exec"))
+  File "/home/nvbn/work/.../app/manage.py", line 34, in <module>
+    execute_from_command_line(sys.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 443, in execute_from_command_line
+    utility.execute()
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 382, in execute
+    self.fetch_command(subcommand).run_from_argv(self.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 196, in run_from_argv
+    self.execute(*args, **options.__dict__)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 232, in execute
+    output = self.handle(*args, **options)
+  File "/home/nvbn/work/.../app/lib/south/management/commands/migrate.py", line 108, in handle
+    ignore_ghosts = ignore_ghosts,
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 193, in migrate_app
+    applied_all = check_migration_histories(applied_all, delete_ghosts, ignore_ghosts)
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 88, in check_migration_histories
+    raise exceptions.GhostMigrations(ghosts)
+south.exceptions.GhostMigrations: 
+
+ ! These migrations are in the database but not on disk:
+    <app1: 0033_auto__...>
+    <app1: 0034_fill_...>
+    <app1: 0035_rename_...>
+    <app2: 0003_add_...>
+    <app2: 0004_denormalize_...>
+    <app1: 0033_auto....>
+    <app1: 0034_fill...>
+ ! I'm not trusting myself; either fix this yourself by fiddling
+ ! with the south_migrationhistory table, or pass --delete-ghost-migrations
+ ! to South to have it delete ALL of these records (this may not be good).
+'''
+
+
+def test_match(stderr):
+    assert match(Command('./manage.py migrate', stderr=stderr), None)
+    assert match(Command('python manage.py migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py migrate'), None)
+    assert not match(Command('app migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py test', stderr=stderr), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command('./manage.py migrate auth'), None)\
+        == './manage.py migrate auth --delete-ghost-migrations'

tests/rules/test_django_south_merge.py

@@ -0,0 +1,43 @@
+import pytest
+from thefuck.rules.django_south_merge import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''Running migrations for app:
+ ! Migration app:0003_auto... should not have been applied before app:0002_auto__add_field_query_due_date_ but was.
+Traceback (most recent call last):
+  File "/home/nvbn/work/.../bin/python", line 42, in <module>
+    exec(compile(__file__f.read(), __file__, "exec"))
+  File "/home/nvbn/work/.../app/manage.py", line 34, in <module>
+    execute_from_command_line(sys.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 443, in execute_from_command_line
+    utility.execute()
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 382, in execute
+    self.fetch_command(subcommand).run_from_argv(self.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 196, in run_from_argv
+    self.execute(*args, **options.__dict__)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 232, in execute
+    output = self.handle(*args, **options)
+  File "/home/nvbn/work/.../app/lib/south/management/commands/migrate.py", line 108, in handle
+    ignore_ghosts = ignore_ghosts,
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 207, in migrate_app
+    raise exceptions.InconsistentMigrationHistory(problems)
+south.exceptions.InconsistentMigrationHistory: Inconsistent migration history
+The following options are available:
+    --merge: will just attempt the migration ignoring any potential dependency conflicts.
+'''
+
+
+def test_match(stderr):
+    assert match(Command('./manage.py migrate', stderr=stderr), None)
+    assert match(Command('python manage.py migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py migrate'), None)
+    assert not match(Command('app migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py test', stderr=stderr), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command('./manage.py migrate auth'), None) \
+           == './manage.py migrate auth --merge'

tests/rules/test_git_add.py

@@ -0,0 +1,39 @@
+import pytest
+from thefuck.rules.git_add import match, get_new_command
+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
+
+
+@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, None)
+
+
+@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, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('git submodule update unknown', stderr=did_not_match('unknown')),
+     'git add -- unknown && git submodule update unknown'),
+    (Command('git commit unknown', stderr=did_not_match('unknown')),  # Old Git
+     'git add -- unknown && git commit unknown')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_git_checkout.py

@@ -0,0 +1,37 @@
+import pytest
+from thefuck.rules.git_checkout import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def did_not_match(target, did_you_forget=False):
+    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
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git checkout unknown', stderr=did_not_match('unknown')),
+    Command(script='git commit unknown', stderr=did_not_match('unknown'))])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git submodule update unknown',
+            stderr=did_not_match('unknown', True)),
+    Command(script='git checkout known', stderr=('')),
+    Command(script='git commit known', stderr=(''))])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='git checkout unknown', stderr=did_not_match('unknown')),
+     'git branch unknown && git checkout unknown'),
+    (Command('git commit unknown', stderr=did_not_match('unknown')),
+     'git branch unknown && git commit unknown')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_git_pull.py

@@ -0,0 +1,29 @@
+import pytest
+from thefuck.rules.git_pull import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''There is no tracking information for the current branch.
+Please specify which branch you want to merge with.
+See git-pull(1) for details
+
+    git pull <remote> <branch>
+
+If you wish to set tracking information for this branch you can do so with:
+
+    git branch --set-upstream-to=<remote>/<branch> master
+
+'''
+
+
+def test_match(stderr):
+    assert match(Command('git pull', stderr=stderr), None)
+    assert not match(Command('git pull'), None)
+    assert not match(Command('ls', stderr=stderr), None)
+
+
+def test_get_new_command(stderr):
+    assert get_new_command(Command('git pull', stderr=stderr), None) \
+           == "git branch --set-upstream-to=origin/master master && git pull"

tests/rules/test_git_stash.py

@@ -0,0 +1,39 @@
+import pytest
+from thefuck.rules.git_stash import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def cherry_pick_error():
+    return ('error: Your local changes would be overwritten by cherry-pick.\n'
+            'hint: Commit your changes or stash them to proceed.\n'
+            'fatal: cherry-pick failed')
+
+
+@pytest.fixture
+def rebase_error():
+    return ('Cannot rebase: Your index contains uncommitted changes.\n'
+            'Please commit or stash them.')
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git cherry-pick a1b2c3d', stderr=cherry_pick_error()),
+    Command(script='git rebase -i HEAD~7', stderr=rebase_error())])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git cherry-pick a1b2c3d', stderr=('')),
+    Command(script='git rebase -i HEAD~7', stderr=(''))])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='git cherry-pick a1b2c3d', stderr=cherry_pick_error),
+     'git stash && git cherry-pick a1b2c3d'),
+    (Command('git rebase -i HEAD~7', stderr=rebase_error),
+     'git stash && git rebase -i HEAD~7')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_grep_recursive.py

@@ -0,0 +1,12 @@
+from thefuck.rules.grep_recursive import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    assert match(Command('grep blah .', stderr='grep: .: Is a directory'), None)
+    assert not match(Command(), None)
+
+
+def test_get_new_command():
+    assert get_new_command(
+        Command('grep blah .'), None) == 'grep -r blah .'

tests/rules/test_java.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.java import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+	Command(script='java foo.java'),
+	Command(script='java bar.java')])
+def test_match(command):
+	assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+	(Command('java foo.java'), 'java foo'),
+	(Command('java bar.java'), 'java bar')])
+def test_get_new_command(command, new_command):
+	assert get_new_command(command, None) == new_command

tests/rules/test_javac.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.javac import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+	Command(script='javac foo'), 
+	Command(script='javac bar')])
+def test_match(command):
+	assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+	(Command('javac foo'), 'javac foo.java'),
+	(Command('javac bar'), 'javac bar.java')])
+def test_get_new_command(command, new_command):
+	assert get_new_command(command, None) == new_command

tests/rules/test_man.py

@@ -0,0 +1,34 @@
+import pytest
+from thefuck.rules.man import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command('man read'),
+    Command('man 2 read'),
+    Command('man 3 read'),
+    Command('man -s2 read'),
+    Command('man -s3 read'),
+    Command('man -s 2 read'),
+    Command('man -s 3 read')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command('man'),
+    Command('man ')])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('man read'), 'man 3 read'),
+    (Command('man 2 read'), 'man 3 read'),
+    (Command('man 3 read'), 'man 2 read'),
+    (Command('man -s2 read'), 'man -s3 read'),
+    (Command('man -s3 read'), 'man -s2 read'),
+    (Command('man -s 2 read'), 'man -s 3 read'),
+    (Command('man -s 3 read'), 'man -s 2 read')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_no_command.py

@@ -3,7 +3,7 @@ from thefuck.rules.no_command import match, get_new_command
 
 
 def test_match():
-    with patch('thefuck.rules.no_command._get_all_bins',
+    with patch('thefuck.rules.no_command._get_all_callables',
                return_value=['vim', 'apt-get']):
         assert match(Mock(stderr='vom: not found', script='vom file.py'), None)
         assert not match(Mock(stderr='qweqwe: not found', script='qweqwe'), None)
@@ -11,7 +11,7 @@ def test_match():
 
 
 def test_get_new_command():
-    with patch('thefuck.rules.no_command._get_all_bins',
+    with patch('thefuck.rules.no_command._get_all_callables',
                return_value=['vim', 'apt-get']):
         assert get_new_command(
             Mock(stderr='vom: not found',

tests/rules/test_no_such_file.py

@@ -0,0 +1,19 @@
+import pytest
+from thefuck.rules.no_such_file import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='mv foo bar/foo', stderr="mv: cannot move 'foo' to 'bar/foo': No such file or directory"),
+    Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"),
+    ])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='mv foo bar/foo', stderr="mv: cannot move 'foo' to 'bar/foo': No such file or directory"), 'mkdir -p bar && mv foo bar/foo'),
+    (Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"), 'mkdir -p bar && mv foo bar/'),
+    ])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_open.py

@@ -0,0 +1,25 @@
+import pytest
+from thefuck.rules.open import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+	Command(script='open foo.com'), 
+	Command(script='open foo.ly'), 
+	Command(script='open foo.org'), 
+	Command(script='open foo.net'), 
+	Command(script='open foo.se'), 
+	Command(script='open foo.io')])
+def test_match(command):
+	assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+	(Command('open foo.com'), 'open http://foo.com'),
+	(Command('open foo.ly'), 'open http://foo.ly'),
+	(Command('open foo.org'), 'open http://foo.org'),
+	(Command('open foo.net'), 'open http://foo.net'),
+	(Command('open foo.se'), 'open http://foo.se'),
+	(Command('open foo.io'), 'open http://foo.io')])
+def test_get_new_command(command, new_command):
+	assert get_new_command(command, None) == new_command

tests/rules/test_pacman.py

@@ -0,0 +1,66 @@
+import pytest
+from mock import patch
+from thefuck.rules import pacman
+from thefuck.rules.pacman import match, get_new_command
+from tests.utils import Command
+
+
+pacman_cmd = getattr(pacman, 'pacman', 'pacman')
+
+PKGFILE_OUTPUT_CONVERT = '''
+extra/imagemagick 6.9.1.0-1\t/usr/bin/convert
+'''
+
+PKGFILE_OUTPUT_VIM = '''
+extra/gvim 7.4.712-1        \t/usr/bin/vim
+extra/gvim-python3 7.4.712-1\t/usr/bin/vim
+extra/vim 7.4.712-1         \t/usr/bin/vim
+extra/vim-minimal 7.4.712-1 \t/usr/bin/vim
+extra/vim-python3 7.4.712-1 \t/usr/bin/vim
+'''
+
+
+@pytest.mark.skipif(not getattr(pacman, 'enabled_by_default', True),
+                    reason='Skip if pacman is not available')
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr='vim: command not found')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, return_value', [
+    (Command(script='vim', stderr='vim: command not found'), PKGFILE_OUTPUT_VIM)])
+@patch('thefuck.rules.pacman.subprocess')
+@patch.multiple(pacman, create=True, pacman=pacman_cmd)
+def test_match_mocked(subp_mock, command, return_value):
+    subp_mock.check_output.return_value = return_value
+    assert match(command, None)
+    assert subp_mock.check_output.called
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr=''), Command()])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.skipif(not getattr(pacman, 'enabled_by_default', True),
+                    reason='Skip if pacman is not available')
+@pytest.mark.parametrize('command, new_command', [
+    (Command('vim'), '{} -S extra/gvim && vim'.format(pacman_cmd)),
+    (Command('convert'), '{} -S extra/imagemagick && convert'.format(pacman_cmd))])
+def test_get_new_command(command, new_command, mocker):
+    assert get_new_command(command, None) == new_command
+
+
+@pytest.mark.parametrize('command, new_command, return_value', [
+    (Command('vim'), '{} -S extra/gvim && vim'.format(pacman_cmd),
+        PKGFILE_OUTPUT_VIM),
+    (Command('convert'), '{} -S extra/imagemagick && convert'.format(pacman_cmd),
+        PKGFILE_OUTPUT_CONVERT)])
+@patch('thefuck.rules.pacman.subprocess')
+@patch.multiple(pacman, create=True, pacman=pacman_cmd)
+def test_get_new_command_mocked(subp_mock, command, new_command, return_value):
+    subp_mock.check_output.return_value = return_value
+    assert get_new_command(command, None) == new_command
+    assert subp_mock.check_output.called

tests/rules/test_whois.py

@@ -0,0 +1,23 @@
+import pytest
+from thefuck.rules.whois import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='whois https://en.wikipedia.org/wiki/Main_Page'),
+    Command(script='whois https://en.wikipedia.org/'),
+    Command(script='whois en.wikipedia.org')])
+def test_match(command):
+    assert match(command, None)
+
+
+def test_not_match():
+    assert not match(Command(script='whois'), None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('whois https://en.wikipedia.org/wiki/Main_Page'), 'whois en.wikipedia.org'),
+    (Command('whois https://en.wikipedia.org/'), 'whois en.wikipedia.org'),
+    (Command('whois en.wikipedia.org'), 'whois wikipedia.org')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/test_shells.py

@@ -13,19 +13,33 @@ def isfile(mocker):
 
 
 class TestGeneric(object):
-    def test_from_shell(self):
+    @pytest.fixture
-        assert shells.Generic().from_shell('pwd') == 'pwd'
+    def shell(self):
+        return shells.Generic()
 
-    def test_to_shell(self):
+    def test_from_shell(self, shell):
-        assert shells.Generic().to_shell('pwd') == 'pwd'
+        assert shell.from_shell('pwd') == 'pwd'
 
-    def test_put_to_history(self, builtins_open):
+    def test_to_shell(self, shell):
-        assert shells.Generic().put_to_history('ls') is None
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_put_to_history(self, builtins_open, shell):
+        assert shell.put_to_history('ls') 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() == {}
+
 
 @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')
@@ -38,20 +52,81 @@ class TestBash(object):
     @pytest.mark.parametrize('before, after', [
         ('pwd', 'pwd'),
         ('ll', 'ls -alF')])
-    def test_from_shell(self, before, after):
+    def test_from_shell(self, before, after, shell):
-        assert shells.Bash().from_shell(before) == after
+        assert shell.from_shell(before) == after
 
-    def test_to_shell(self):
+    def test_to_shell(self, shell):
-        assert shells.Bash().to_shell('pwd') == 'pwd'
+        assert shell.to_shell('pwd') == 'pwd'
 
-    def test_put_to_history(self, builtins_open):
+    def test_put_to_history(self, builtins_open, shell):
-        shells.Bash().put_to_history('ls')
+        shell.put_to_history('ls')
         builtins_open.return_value.__enter__.return_value. \
             write.assert_called_once_with('ls\n')
 
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'l': 'ls -CF',
+                                       'la': 'ls -A',
+                                       'll': 'ls -alF'}
+
+
+@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'fish_config\nfuck\nfunced\nfuncsave\ngrep\nhistory\nll\nmath')
+        return mock
+
+    @pytest.mark.parametrize('before, after', [
+        ('pwd', 'pwd'),
+        ('fuck', 'fish -ic "fuck"'),
+        ('find', 'find'),
+        ('funced', 'fish -ic "funced"'),
+        ('awk', 'awk'),
+        ('math "2 + 2"', r'fish -ic "math \"2 + 2\""'),
+        ('vim', 'vim'),
+        ('ll', 'fish -ic "ll"')])  # 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_put_to_history(self, builtins_open, mocker, shell):
+        mocker.patch('thefuck.shells.time',
+                     return_value=1430707243.3517463)
+        shell.put_to_history('ls')
+        builtins_open.return_value.__enter__.return_value. \
+            write.assert_called_once_with('- cmd: ls\n   when: 1430707243\n')
+
+    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',
+                                       'grep': 'grep',
+                                       'history': 'history',
+                                       'll': 'll',
+                                       'math': 'math'}
+
 
 @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')
@@ -64,15 +139,23 @@ class TestZsh(object):
     @pytest.mark.parametrize('before, after', [
         ('pwd', 'pwd'),
         ('ll', 'ls -alF')])
-    def test_from_shell(self, before, after):
+    def test_from_shell(self, before, after, shell):
-        assert shells.Zsh().from_shell(before) == after
+        assert shell.from_shell(before) == after
 
-    def test_to_shell(self):
+    def test_to_shell(self, shell):
-        assert shells.Zsh().to_shell('pwd') == 'pwd'
+        assert shell.to_shell('pwd') == 'pwd'
 
-    def test_put_to_history(self, builtins_open, mocker):
+    def test_put_to_history(self, builtins_open, mocker, shell):
         mocker.patch('thefuck.shells.time',
                      return_value=1430707243.3517463)
-        shells.Zsh().put_to_history('ls')
+        shell.put_to_history('ls')
         builtins_open.return_value.__enter__.return_value. \
             write.assert_called_once_with(': 1430707243:0;ls\n')
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'l': 'ls -CF',
+                                       'la': 'ls -A',
+                                       'll': 'ls -alF'}

tests/test_utils.py

@@ -1,6 +1,6 @@
 import pytest
 from mock import Mock
-from thefuck.utils import sudo_support, wrap_settings
+from thefuck.utils import sudo_support, wrap_settings, memoize
 from thefuck.types import Settings
 from tests.utils import Command
 
@@ -24,3 +24,11 @@ def test_sudo_support(return_value, command, called, result):
     fn = Mock(return_value=return_value, __name__='')
     assert sudo_support(fn)(Command(command), None) == result
     fn.assert_called_once_with(Command(called), None)
+
+
+def test_memoize():
+    fn = Mock(__name__='fn')
+    memoized = memoize(fn)
+    memoized()
+    memoized()
+    fn.assert_called_once_with()

thefuck/rules/apt_get.py

@@ -1,3 +1,5 @@
+from thefuck import shells
+
 try:
     import CommandNotFound
 except ImportError:
@@ -20,4 +22,5 @@ def get_new_command(command, settings):
     c = CommandNotFound.CommandNotFound()
     pkgs = c.getPackages(command.script.split(" ")[0])
     name, _ = pkgs[0]
-    return "sudo apt-get install {} && {}".format(name, command.script)
+    formatme = shells.and_('sudo apt-get install {}', '{}')
+    return formatme.format(name, command.script)

thefuck/rules/brew_install.py

@@ -3,12 +3,11 @@ import os
 import re
 from subprocess import check_output
 
-import thefuck.logs
-
 # Formulars are base on each local system's status
 brew_formulas = []
 try:
-    brew_path_prefix = check_output(['brew', '--prefix']).strip()
+    brew_path_prefix = check_output(['brew', '--prefix'],
+                                    universal_newlines=True).strip()
     brew_formula_path = brew_path_prefix + '/Library/Formula'
 
     for file_name in os.listdir(brew_formula_path):

thefuck/rules/brew_unknown_command.py

@@ -12,7 +12,8 @@ TAP_CMD_PATH = '/%s/%s/cmd'
 def _get_brew_path_prefix():
     """To get brew path"""
     try:
-        return subprocess.check_output(['brew', '--prefix']).strip()
+        return subprocess.check_output(['brew', '--prefix'],
+                                       universal_newlines=True).strip()
     except:
         return None
 

thefuck/rules/cd_correction.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+__author__ = "mmussomele"
+
+"""Attempts to spellcheck and correct failed cd commands"""
+
+import os
+from difflib import get_close_matches
+from thefuck.utils import sudo_support
+from thefuck.rules import cd_mkdir
+
+MAX_ALLOWED_DIFF = 0.6
+
+
+def _get_sub_dirs(parent):
+    """Returns a list of the child directories of the given parent directory"""
+    return [child for child in os.listdir(parent) if os.path.isdir(os.path.join(parent, child))]
+
+
+@sudo_support
+def match(command, settings):
+    """Match function copied from cd_mkdir.py"""
+    return (command.script.startswith('cd ')
+            and ('no such file or directory' in command.stderr.lower()
+                 or 'cd: can\'t cd to' in command.stderr.lower()))
+
+
+@sudo_support
+def get_new_command(command, settings):
+    """
+    Attempt to rebuild the path string by spellchecking the directories.
+    If it fails (i.e. no directories are a close enough match), then it 
+    defaults to the rules of cd_mkdir. 
+    Change sensitivity by changing MAX_ALLOWED_DIFF. Default value is 0.6
+    """
+    dest = command.script.split()[1].split(os.sep)
+    if dest[-1] == '':
+        dest = dest[:-1]
+    cwd = os.getcwd()
+    for directory in dest:
+        if directory == ".":
+            continue
+        elif directory == "..":
+            cwd = os.path.split(cwd)[0]
+            continue
+        best_matches = get_close_matches(directory, _get_sub_dirs(cwd), cutoff=MAX_ALLOWED_DIFF)
+        if best_matches:
+            cwd = os.path.join(cwd, best_matches[0])
+        else:
+            return cd_mkdir.get_new_command(command, settings)
+    return "cd {0}".format(cwd)
+
+
+enabled_by_default = True

thefuck/rules/cd_mkdir.py

@@ -1,4 +1,5 @@
 import re
+from thefuck import shells
 from thefuck.utils import sudo_support
 
 
@@ -11,4 +12,5 @@ def match(command, settings):
 
 @sudo_support
 def get_new_command(command, settings):
-    return re.sub(r'^cd (.*)', 'mkdir -p \\1 && cd \\1', command.script)
+    repl = shells.and_('mkdir -p \\1', 'cd \\1')
+    return re.sub(r'^cd (.*)', repl, command.script)

thefuck/rules/django_south_ghost.py

@@ -0,0 +1,8 @@
+def match(command, settings):
+    return 'manage.py' in command.script and \
+           'migrate' in command.script \
+           and 'or pass --delete-ghost-migrations' in command.stderr
+
+
+def get_new_command(command, settings):
+    return u'{} --delete-ghost-migrations'.format(command.script)

thefuck/rules/django_south_merge.py

@@ -0,0 +1,8 @@
+def match(command, settings):
+    return 'manage.py' in command.script and \
+           'migrate' in command.script \
+           and '--merge: will just attempt the migration' in command.stderr
+
+
+def get_new_command(command, settings):
+    return u'{} --merge'.format(command.script)

thefuck/rules/git_add.py

@@ -1,4 +1,5 @@
 import re
+from thefuck import shells
 
 
 def match(command, settings):
@@ -12,4 +13,5 @@ def get_new_command(command, settings):
             r"error: pathspec '([^']*)' "
             "did not match any file\(s\) known to git.", command.stderr)[0]
 
-    return 'git add -- {} && {}'.format(missing_file, command.script)
+    formatme = shells.and_('git add -- {}', '{}')
+    return formatme.format(missing_file, command.script)

thefuck/rules/git_checkout.py

@@ -1,4 +1,5 @@
 import re
+from thefuck import shells
 
 
 def match(command, settings):
@@ -12,4 +13,5 @@ def get_new_command(command, settings):
             r"error: pathspec '([^']*)' "
             "did not match any file\(s\) known to git.", command.stderr)[0]
 
-    return 'git branch {} && {}'.format(missing_file, command.script)
+    formatme = shells.and_('git branch {}', '{}')
+    return formatme.format(missing_file, command.script)

thefuck/rules/git_pull.py

@@ -0,0 +1,12 @@
+def match(command, settings):
+    return ('git' in command.script
+            and 'pull' in command.script
+            and 'set-upstream' in command.stderr)
+
+
+def get_new_command(command, settings):
+    line = command.stderr.split('\n')[-3].strip()
+    branch = line.split(' ')[-1]
+    set_upstream = line.replace('<remote>', 'origin')\
+                       .replace('<branch>', branch)
+    return u'{} && {}'.format(set_upstream, command.script)

thefuck/rules/git_stash.py

@@ -0,0 +1,12 @@
+from thefuck import shells
+
+
+def match(command, settings):
+    # catches "Please commit or stash them" and "Please, commit your changes or
+    # stash them before you can switch branches."
+    return 'git' in command.script and 'or stash them' in command.stderr
+
+
+def get_new_command(command, settings):
+    formatme = shells.and_('git stash', '{}')
+    return formatme.format(command.script)

thefuck/rules/grep_recursive.py

@@ -0,0 +1,7 @@
+def match(command, settings):
+    return (command.script.startswith('grep')
+            and 'is a directory' in command.stderr.lower())
+
+
+def get_new_command(command, settings):
+    return 'grep -r {}'.format(command.script[5:])

thefuck/rules/java.py

@@ -0,0 +1,13 @@
+# Fixes common java command mistake
+# 
+# Example:
+# > java foo.java
+# Error: Could not find or load main class foo.java
+# 
+
+def match(command, settings):
+	return (command.script.startswith ('java ')
+		and command.script.endswith ('.java'))
+
+def get_new_command(command, settings):
+	return command.script[:-5]

thefuck/rules/javac.py

@@ -0,0 +1,15 @@
+# Appends .java when compiling java files
+# 
+# Example:
+# > javac foo
+# error: Class names, 'foo', are only accepted if annotation 
+# processing is explicitly requested
+#
+# 
+
+def match(command, settings):
+	return (command.script.startswith ('javac ')
+			and not command.script.endswith('.java'))
+
+def get_new_command(command, settings):
+	return command.script + '.java'

thefuck/rules/ls_lah.py

@@ -1,6 +1,3 @@
-enabled_by_default = False
-
-
 def match(command, settings):
     return 'ls' in command.script and not ('ls -' in command.script)
 

thefuck/rules/man.py

@@ -0,0 +1,13 @@
+def match(command, settings):
+    return command.script.strip().startswith('man ')
+
+
+def get_new_command(command, settings):
+    if '3' in command.script:
+        return command.script.replace("3", "2")
+    if '2' in command.script:
+        return command.script.replace("2", "3")
+
+    split_cmd = command.script.split()
+    split_cmd.insert(1, ' 3 ')
+    return "".join(split_cmd)

thefuck/rules/no_command.py

@@ -2,6 +2,7 @@ from difflib import get_close_matches
 import os
 from pathlib import Path
 from thefuck.utils import sudo_support
+from thefuck.shells import get_aliases
 
 
 def _safe(fn, fallback):
@@ -11,25 +12,25 @@ def _safe(fn, fallback):
         return fallback
 
 
-def _get_all_bins():
+def _get_all_callables():
     return [exe.name
             for path in os.environ.get('PATH', '').split(':')
             for exe in _safe(lambda: list(Path(path).iterdir()), [])
-            if not _safe(exe.is_dir, True)]
+            if not _safe(exe.is_dir, True)] + get_aliases()
 
 
 @sudo_support
 def match(command, settings):
     return 'not found' in command.stderr and \
            bool(get_close_matches(command.script.split(' ')[0],
-                                  _get_all_bins()))
+                                  _get_all_callables()))
 
 
 @sudo_support
 def get_new_command(command, settings):
     old_command = command.script.split(' ')[0]
     new_command = get_close_matches(old_command,
-                                    _get_all_bins())[0]
+                                    _get_all_callables())[0]
     return ' '.join([new_command] + command.script.split(' ')[1:])
 
 

thefuck/rules/no_such_file.py

@@ -0,0 +1,30 @@
+import re
+from thefuck import shells
+
+
+patterns = (
+    r"mv: cannot move '[^']*' to '([^']*)': No such file or directory",
+    r"mv: cannot move '[^']*' to '([^']*)': Not a directory",
+    r"cp: cannot create regular file '([^']*)': No such file or directory",
+    r"cp: cannot create regular file '([^']*)': Not a directory",
+)
+
+
+def match(command, settings):
+    for pattern in patterns:
+        if re.search(pattern, command.stderr):
+            return True
+
+    return False
+
+
+def get_new_command(command, settings):
+    for pattern in patterns:
+        file = re.findall(pattern, command.stderr)
+
+        if file:
+            file = file[0]
+            dir = file[0:file.rfind('/')]
+
+            formatme = shells.and_('mkdir -p {}', '{}')
+            return formatme.format(dir, command.script)

thefuck/rules/open.py

@@ -0,0 +1,24 @@
+# Opens URL's in the default web browser
+# 
+# Example:
+# > open github.com
+# The file ~/github.com does not exist.
+# Perhaps you meant 'http://github.com'?
+#
+# 
+
+def match(command, settings):
+	return (command.script.startswith ('open')
+			and (
+			# Wanted to use this:
+			# 'http' in command.stderr
+			'.com' in command.script
+			or '.net' in command.script
+			or '.org' in command.script
+			or '.ly' in command.script
+			or '.io' in command.script
+			or '.se' in command.script
+			or '.edu' in command.script))
+
+def get_new_command(command, settings):
+	return 'open http://' + command.script[5:]

thefuck/rules/pacman.py

@@ -1,23 +1,13 @@
 import subprocess
-from thefuck.utils import DEVNULL
+from thefuck.utils import DEVNULL, which
-
+from thefuck import shells
-
-def __command_available(command):
-    try:
-        subprocess.check_output([command], stderr=DEVNULL)
-        return True
-    except subprocess.CalledProcessError:
-        # command exists but is not happy to be called without any argument
-        return True
-    except OSError:
-        return False
 
 
 def __get_pkgfile(command):
     try:
         return subprocess.check_output(
             ['pkgfile', '-b', '-v', command.script.split(" ")[0]],
-            universal_newlines=True, stderr=subprocess.DEVNULL
+            universal_newlines=True, stderr=DEVNULL
         ).split()
     except subprocess.CalledProcessError:
         return None
@@ -30,14 +20,15 @@ def match(command, settings):
 def get_new_command(command, settings):
     package = __get_pkgfile(command)[0]
 
-    return '{} -S {} && {}'.format(pacman, package, command.script)
+    formatme = shells.and_('{} -S {}', '{}')
+    return formatme.format(pacman, package, command.script)
 
 
-if not __command_available('pkgfile'):
+if not which('pkgfile'):
     enabled_by_default = False
-elif __command_available('yaourt'):
+elif which('yaourt'):
     pacman = 'yaourt'
-elif __command_available('pacman'):
+elif which('pacman'):
     pacman = 'sudo pacman'
 else:
     enabled_by_default = False

thefuck/rules/sudo.py

@@ -11,7 +11,8 @@ patterns = ['permission denied',
             'requested operation requires superuser privilege',
             'must be run as root',
             'must be superuser',
-            'Need to be root']
+            'Need to be root',
+            'you must be root to run this program.']
 
 
 def match(command, settings):

thefuck/rules/whois.py

@@ -0,0 +1,31 @@
+# -*- encoding: utf-8 -*-
+from six.moves.urllib.parse import urlparse
+
+
+def match(command, settings):
+    """
+    What the `whois` command returns depends on the 'Whois server' it contacted
+    and is not consistent through different servers. But there can be only two
+    types of errors I can think of with `whois`:
+        - `whois https://en.wikipedia.org/` → `whois en.wikipedia.org`;
+        - `whois en.wikipedia.org` → `whois wikipedia.org`.
+    So we match any `whois` command and then:
+        - if there is a slash: keep only the FQDN;
+        - if there is no slash but there is a point: removes the left-most
+          subdomain.
+
+    We cannot either remove all subdomains because we cannot know which part is
+    the subdomains and which is the domain, consider:
+        - www.google.fr → subdomain: www, domain: 'google.fr';
+        - google.co.uk → subdomain: None, domain; 'google.co.uk'.
+    """
+    return 'whois' in command.script and len(command.script.split()) > 1
+
+
+def get_new_command(command, settings):
+    url = command.script.split()[1]
+
+    if '/' in command.script:
+        return 'whois ' + urlparse(url).netloc
+    elif '.' in command.script:
+        return 'whois ' + '.'.join(urlparse(url).path.split('.')[1:])

thefuck/shells.py

@@ -1,5 +1,5 @@
 """Module with shell specific actions, each shell class should
-implement `from_shell`, `to_shell`, `app_alias` and `put_to_history`
+implement `from_shell`, `to_shell`, `app_alias`, `put_to_history` and `get_aliases`
 methods.
 
 """
@@ -8,15 +8,16 @@ from subprocess import Popen, PIPE
 from time import time
 import os
 from psutil import Process
-from .utils import DEVNULL
+from .utils import DEVNULL, memoize
 
 
 class Generic(object):
-    def _get_aliases(self):
+
+    def get_aliases(self):
         return {}
 
     def _expand_aliases(self, command_script):
-        aliases = self._get_aliases()
+        aliases = self.get_aliases()
         binary = command_script.split(' ')[0]
         if binary in aliases:
             return command_script.replace(binary, aliases[binary], 1)
@@ -47,16 +48,24 @@ class Generic(object):
             with open(history_file_name, 'a') as history:
                 history.write(self._get_history_line(command_script))
 
+    def and_(self, *commands):
+        return ' && '.join(commands)
+
 
 class Bash(Generic):
+    def app_alias(self):
+        return "\nalias fuck='eval $(thefuck $(fc -ln -1)); history -r'\n"
+
     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
 
-    def _get_aliases(self):
+    @memoize
-        proc = Popen('bash -ic alias', stdout=PIPE, stderr=DEVNULL, shell=True)
+    def get_aliases(self):
+        proc = Popen('bash -ic alias', stdout=PIPE, stderr=DEVNULL,
+                     shell=True)
         return dict(
             self._parse_alias(alias)
             for alias in proc.stdout.read().decode('utf-8').split('\n')
@@ -70,15 +79,64 @@ class Bash(Generic):
         return u'{}\n'.format(command_script)
 
 
+class Fish(Generic):
+    def app_alias(self):
+        return ("function fuck -d 'Correct your previous console command'\n"
+                "    set -l exit_code $status\n"
+                "    set -l eval_script"
+                " (mktemp 2>/dev/null ; or mktemp -t 'thefuck')\n"
+                "    set -l fucked_up_commandd $history[1]\n"
+                "    thefuck $fucked_up_commandd > $eval_script\n"
+                "    . $eval_script\n"
+                "    rm $eval_script\n"
+                "    if test $exit_code -ne 0\n"
+                "        history --delete $fucked_up_commandd\n"
+                "    end\n"
+                "end")
+
+    @memoize
+    def get_aliases(self):
+        proc = Popen('fish -ic functions', stdout=PIPE, stderr=DEVNULL,
+                     shell=True)
+        functions = proc.stdout.read().decode('utf-8').strip().split('\n')
+        return {function: function for function in functions}
+
+    def _expand_aliases(self, command_script):
+        aliases = self.get_aliases()
+        binary = command_script.split(' ')[0]
+        if binary in aliases:
+            return '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 and_(self, *commands):
+        return '; and '.join(commands)
+
+
 class Zsh(Generic):
+    def app_alias(self):
+        return "\nalias fuck='eval $(thefuck $(fc -ln -1 | tail -n 1)); fc -R'\n"
+
     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
 
-    def _get_aliases(self):
+    @memoize
-        proc = Popen('zsh -ic alias', stdout=PIPE, stderr=DEVNULL, shell=True)
+    def get_aliases(self):
+        proc = Popen('zsh -ic alias', stdout=PIPE, stderr=DEVNULL,
+                     shell=True)
         return dict(
             self._parse_alias(alias)
             for alias in proc.stdout.read().decode('utf-8').split('\n')
@@ -92,16 +150,44 @@ class Zsh(Generic):
         return u': {}:0;{}\n'.format(int(time()), command_script)
 
 
+class Tcsh(Generic):
+    def app_alias(self):
+        return "\nalias fuck 'set fucked_cmd=`history -h 2 | head -n 1` && eval `thefuck ${fucked_cmd}`'\n"
+
+    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,
+                     shell=True)
+        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)
+
+
 shells = defaultdict(lambda: Generic(), {
     'bash': Bash(),
-    'zsh': Zsh()})
+    'fish': Fish(),
+    'zsh': Zsh(),
+    'csh': Tcsh(),
+    'tcsh': Tcsh()})
 
 
 def _get_shell():
     try:
-        shell = Process(os.getpid()).parent().cmdline()[0]
+        shell = Process(os.getpid()).parent().name()
     except TypeError:
-        shell = Process(os.getpid()).parent.cmdline[0]
+        shell = Process(os.getpid()).parent.name
     return shells[shell]
 
 
@@ -114,8 +200,16 @@ def to_shell(command):
 
 
 def app_alias():
-    return _get_shell().app_alias()
+    print(_get_shell().app_alias())
 
 
 def put_to_history(command):
     return _get_shell().put_to_history(command)
+
+
+def and_(*commands):
+    return _get_shell().and_(*commands)
+
+
+def get_aliases():
+    return list(_get_shell().get_aliases().keys())

thefuck/utils.py

@@ -1,5 +1,6 @@
 from functools import wraps
 import os
+import pickle
 import six
 from .types import Command
 
@@ -62,3 +63,18 @@ def sudo_support(fn):
         else:
             return result
     return wrapper
+
+
+def memoize(fn):
+    """Caches previous calls to the function."""
+    memo = {}
+
+    @wraps(fn)
+    def wrapper(*args, **kwargs):
+        key = pickle.dumps((args, kwargs))
+        if key not in memo:
+            memo[key] = fn(*args, **kwargs)
+
+        return memo[key]
+
+    return wrapper