Merge branch 'master' into fix-readme-typos

.travis.yml

@@ -1,37 +1,19 @@
 language: python
 sudo: false
+os: linux
+dist: xenial
 matrix:
   include:
-    - os: linux
+    - python: "nightly"
-      dist: xenial
+    - python: "3.8-dev"
-      python: "nightly"
+    - python: "3.8"
-    - os: linux
+    - python: "3.7-dev"
-      dist: xenial
+    - python: "3.7"
-      python: "3.8-dev"
+    - python: "3.6-dev"
-    - os: linux
+    - python: "3.6"
-      dist: xenial
+    - python: "3.5"
-      python: "3.8"
+    - python: "3.4"
-    - os: linux
+    - python: "2.7"
-      dist: xenial
-      python: "3.7-dev"
-    - os: linux
-      dist: xenial
-      python: "3.7"
-    - os: linux
-      dist: trusty
-      python: "3.6-dev"
-    - os: linux
-      dist: trusty
-      python: "3.6"
-    - os: linux
-      dist: trusty
-      python: "3.5"
-    - os: linux
-      dist: trusty
-      python: "3.4"
-    - os: linux
-      dist: trusty
-      python: "2.7"
     - os: osx
       language: generic
   allow_failures:

README.md

@@ -279,6 +279,7 @@ following rules are enabled by default:
 * `quotation_marks` – fixes uneven usage of `'` and `"` when containing args';
 * `path_from_history` – replaces not found path with similar absolute path from history;
 * `react_native_command_unrecognized` – fixes unrecognized `react-native` commands;
+* `remove_shell_prompt_literal` – remove leading shell prompt symbol `$`, common when copying commands from documentations;
 * `remove_trailing_cedilla` – remove trailing cedillas `ç`, a common typo for european keyboard layouts;
 * `rm_dir` – adds `-rf` when you try to remove a directory;
 * `scm_correction` – corrects wrong scm like `hg log` to `git log`;
@@ -389,7 +390,7 @@ requires_output = True
 Several *The Fuck* parameters can be changed in the file `$XDG_CONFIG_HOME/thefuck/settings.py`
 (`$XDG_CONFIG_HOME` defaults to `~/.config`):
 
-* `rules` – list of enabled rules, by default `thefuck.conf.DEFAULT_RULES`;
+* `rules` – list of enabled rules, by default `thefuck.const.DEFAULT_RULES`;
 * `exclude_rules` – list of disabled rules, by default `[]`;
 * `require_confirmation` – requires confirmation before running new command, by default `True`;
 * `wait_command` – max amount of time in seconds for getting previous command output;

tests/rules/test_remove_shell_prompt_literal.py

@@ -0,0 +1,38 @@
+import pytest
+from thefuck.rules.remove_shell_prompt_literal import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.fixture
+def output():
+    return "$: command not found"
+
+
+@pytest.mark.parametrize("script", ["$ cd newdir", " $ cd newdir"])
+def test_match(script, output):
+    assert match(Command(script, output))
+
+
+@pytest.mark.parametrize(
+    "command",
+    [
+        Command("$", "$: command not found"),
+        Command(" $", "$: command not found"),
+        Command("$?", "127: command not found"),
+        Command(" $?", "127: command not found"),
+        Command("", ""),
+    ],
+)
+def test_not_match(command):
+    assert not match(command)
+
+
+@pytest.mark.parametrize(
+    "script, new_command",
+    [
+        ("$ cd newdir", "cd newdir"),
+        ("$ python3 -m virtualenv env", "python3 -m virtualenv env"),
+    ],
+)
+def test_get_new_command(script, new_command, output):
+    assert get_new_command(Command(script, output)) == new_command

thefuck/rules/remove_shell_prompt_literal.py

@@ -0,0 +1,22 @@
+"""Fixes error for commands containing the shell prompt symbol '$'.
+
+This usually happens when commands are copied from documentations
+including them in their code blocks.
+
+Example:
+> $ git clone https://github.com/nvbn/thefuck.git
+bash: $: command not found...
+"""
+
+import re
+
+
+def match(command):
+    return (
+        "$: command not found" in command.output
+        and re.search(r"^[\s]*\$ [\S]+", command.script) is not None
+    )
+
+
+def get_new_command(command):
+    return command.script.replace("$", "", 1).strip()

thefuck/shells/powershell.py

@@ -24,9 +24,9 @@ class Powershell(Generic):
 
     def how_to_configure(self):
         return ShellConfiguration(
-            content=u'iex "thefuck --alias"',
+            content=u'iex "$(thefuck --alias)"',
             path='$profile',
-            reload='& $profile',
+            reload='. $profile',
             can_configure_automatically=False)
 
     def _get_version(self):