Add the git_fix_stash rule

README.md

@@ -141,13 +141,14 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `cpp11` – adds missing `-std=c++11` to `g++` or `clang++`;
 * `django_south_ghost` – adds `--delete-ghost-migrations` to failed because ghosts django south migration;
 * `django_south_merge` – adds `--merge` to inconsistent django south migration;
-* `dry` – fixes repetitions like "git git push";
+* `dry` – fixes repetitions like `git git push`;
 * `fix_alt_space` – replaces Alt+Space with Space character;
 * `git_add` – fixes *"Did you forget to 'git add'?"*;
 * `git_branch_delete` – changes `git branch -d` to `git branch -D`;
 * `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_not_command` – fixes wrong git commands like `git brnch`;
 * `git_pull` – sets upstream before executing previous `git pull`;
 * `git_pull_clone` – clones instead of pulling when the repo does not exist;
@@ -155,14 +156,14 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `git_push_pull` – runs `git pull` when `push` was rejected;
 * `git_stash` – stashes you local modifications before rebasing or switching branch;
 * `go_run` – appends `.go` extension when compiling/running Go programs
-* `grep_recursive` – adds `-r` when you trying to grep directory;
+* `grep_recursive` – adds `-r` when you trying to `grep` directory;
 * `has_exists_script` – prepends `./` when script/binary exists;
-* `heroku_no_command` – fixes wrong heroku commands like `heroku log`;
+* `heroku_no_command` – fixes wrong `heroku` commands like `heroku log`;
 * `history` – tries to replace command with most similar command from history;
 * `java` – removes `.java` extension when running Java programs;
 * `javac` – appends missing `.java` when compiling Java files;
 * `lein_not_task` – fixes wrong `lein` tasks like `lein rpl`;
-* `ls_lah` – adds -lah to ls;
+* `ls_lah` – adds `-lah` to `ls`;
 * `man` – changes manual section;
 * `man_no_space` – fixes man commands without spaces, for example `mandiff`;
 * `mercurial` – fixes wrong `hg` commands;
@@ -170,7 +171,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `no_command` – fixes wrong console commands, for example `vom/vim`;
 * `no_such_file` – creates missing directories with `mv` and `cp` commands;
 * `open` – prepends `http` to address passed to `open`;
-* `pip_unknown_command` – fixes wrong pip commands, for example `pip instatl/pip install`;
+* `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;
 * `python_execute` – appends missing `.py` when executing Python files;
 * `quotation_marks` – fixes uneven usage of `'` and `"` when containing args'
@@ -180,9 +181,9 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `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;
-* `systemctl` – correctly orders parameters of confusing systemctl;
+* `systemctl` – correctly orders parameters of confusing `systemctl`;
 * `test.py` – runs `py.test` instead of `test.py`;
-* `tmux` – fixes tmux commands;
+* `tmux` – fixes `tmux` commands;
 * `whois` – fixes `whois` command.
 
 Enabled by default only on specific platforms:

tests/rules/test_git_fix_stash.py

@@ -0,0 +1,31 @@
+import pytest
+from thefuck.rules.git_fix_stash import match, get_new_command
+from tests.utils import Command
+
+
+git_stash_err = '''
+usage: git stash list [<options>]
+   or: git stash show [<stash>]
+   or: git stash drop [-q|--quiet] [<stash>]
+   or: git stash ( pop | apply ) [--index] [-q|--quiet] [<stash>]
+   or: git stash branch <branchname> [<stash>]
+   or: git stash [save [--patch] [-k|--[no-]keep-index] [-q|--quiet]
+		       [-u|--include-untracked] [-a|--all] [<message>]]
+   or: git stash clear
+'''
+
+
+@pytest.mark.parametrize('wrong', [
+    'git stash opp',
+    'git stash Some message',
+    'git stash saev Some message'])
+def test_match(wrong):
+    assert match(Command(wrong, stderr=git_stash_err), None)
+
+
+@pytest.mark.parametrize('wrong,fixed', [
+    ('git stash opp', 'git stash pop'),
+    ('git stash Some message', 'git stash save Some message'),
+    ('git stash saev Some message', 'git stash save Some message')])
+def test_get_new_command(wrong, fixed):
+    assert get_new_command(Command(wrong, stderr=git_stash_err), None) == fixed

thefuck/rules/git_fix_stash.py

@@ -0,0 +1,33 @@
+from thefuck import utils
+
+
+@utils.git_support
+def match(command, settings):
+    return (command.script.split()[1] == 'stash'
+            and 'usage:' in command.stderr)
+
+
+# git's output here is too complicated to be parsed (see the test file)
+stash_commands = (
+        'apply',
+        'branch',
+        'clear',
+        'drop',
+        'list',
+        'pop',
+        'save',
+        'show',
+        )
+
+
+@utils.git_support
+def get_new_command(command, settings):
+    stash_cmd = command.script.split()[2]
+    fixed = utils.get_closest(stash_cmd, stash_commands, fallback_to_first=False)
+
+    if fixed is not None:
+        return command.script.replace(stash_cmd, fixed)
+    else:
+        cmd = command.script.split()
+        cmd.insert(2, 'save')
+        return ' '.join(cmd)