Move all app/os specific utils to specific package

thefuck/utils.py

@@ -1,14 +1,12 @@
-from subprocess import CalledProcessError
-import subprocess
 from difflib import get_close_matches
 from functools import wraps
-from pathlib import Path
-from shlex import split
+
 import os
 import pickle
 import re
+
+from pathlib import Path
 import six
-from .types import Command
 
 
 DEVNULL = open(os.devnull, 'w')
@@ -57,59 +55,6 @@ def wrap_settings(params):
     return decorator
 
 
-def sudo_support(fn):
-    """Removes sudo before calling fn and adds it after."""
-    @wraps(fn)
-    def wrapper(command, settings):
-        if not command.script.startswith('sudo '):
-            return fn(command, settings)
-
-        result = fn(Command(command.script[5:],
-                            command.stdout,
-                            command.stderr),
-                    settings)
-
-        if result and isinstance(result, six.string_types):
-            return u'sudo {}'.format(result)
-        elif isinstance(result, list):
-            return [u'sudo {}'.format(x) for x in result]
-        else:
-            return result
-    return wrapper
-
-
-def git_support(fn):
-    """Resolves git aliases and supports testing for both git and hub."""
-    @wraps(fn)
-    def wrapper(command, settings):
-        # supports GitHub's `hub` command
-        # which is recommended to be used with `alias git=hub`
-        # but at this point, shell aliases have already been resolved
-        is_git_cmd = command.script.startswith(('git', 'hub'))
-
-        if not is_git_cmd:
-            return False
-
-        # perform git aliases expansion
-        if 'trace: alias expansion:' in command.stderr:
-            search = re.search("trace: alias expansion: ([^ ]*) => ([^\n]*)",
-                               command.stderr)
-            alias = search.group(1)
-
-            # by default git quotes everything, for example:
-            #     'commit' '--amend'
-            # which is surprising and does not allow to easily test for
-            # eg. 'git commit'
-            expansion = ' '.join(map(quote, split(search.group(2))))
-            new_script = command.script.replace(alias, expansion)
-
-            command = Command._replace(command, script=new_script)
-
-        return fn(command, settings)
-
-    return wrapper
-
-
 def memoize(fn):
     """Caches previous calls to the function."""
     memo = {}
@@ -187,41 +132,3 @@ def replace_command(command, broken, matched):
     new_cmds = get_close_matches(broken, matched, cutoff=0.1)
     return [replace_argument(command.script, broken, new_cmd.strip())
             for new_cmd in new_cmds]
-
-
-@memoize
-def get_pkgfile(command):
-    """ Gets the packages that provide the given command using `pkgfile`.
-
-    If the command is of the form `sudo foo`, searches for the `foo` command
-    instead.
-    """
-    try:
-        command = command.strip()
-
-        if command.startswith('sudo '):
-            command = command[5:]
-
-        command = command.split(" ")[0]
-
-        packages = subprocess.check_output(
-            ['pkgfile', '-b', '-v', command],
-            universal_newlines=True, stderr=DEVNULL
-        ).splitlines()
-
-        return [package.split()[0] for package in packages]
-    except CalledProcessError:
-        return None
-
-
-def archlinux_env():
-    if which('yaourt'):
-        pacman = 'yaourt'
-    elif which('pacman'):
-        pacman = 'sudo pacman'
-    else:
-        return False, None
-
-    enabled_by_default = which('pkgfile')
-
-    return enabled_by_default, pacman