#N/A: Check that brew/apt available in related rules

thefuck/rules/apt_get.py

@@ -1,8 +1,10 @@
+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
 

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_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/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