Xonsh

====================

**Added:**

* Support for MSYS2.
* New ``xonsh.main.setup()`` function for starting up xonsh in 3rd party
packages.


**Changed:**

* Updated CircleCI to use circle version 2.0
* Replaced StopIteration with return in CommandPipeline.iterraw.
* Xonsh run control now also looks for the XDG-compliant file
``~/.config/xonsh/rc.xsh`` at startup.


**Fixed:**

* Clean out ``$LINES`` and ``$COLUMNS`` if set, preventing some programs from drawing weirdly
* cat from xoreutils now outputs in configured encoding
* Fixed hanging issue with pipelines whose middle processes exit before the
first or last process.
* Fixed issue where xonsh would deduplicate spaces from bash autocompletions.
* Fixed failing redirections from stderr to stdout when the command
being executed was a callable alias.
* Ensure that the ``free_cwd`` contrib can only be active on pure Windows.
* Made an exceptional case in ``iglobpath()`` more robust when Python globbing
fails for due to strange scrandir issue.
* Unexpected process suspension on Cygwin and MSYS2.
* ``$XONSH_APPEND_NEWLINE`` will now default to True when in interactive mode.
* Fixed issue with uncalled lambdas being run in subproc mode.
* Lambda nodes not have proper line and column numbers in AST.
* Properly throw ``SyntaxError`` when no kwargs are defined
in a kwarg-only function. This used to throw a
``TypeError: 'NoneType' object is not iterable``.
* Addressed issue where encoding and errors were None when teeing output.
* Commands like ``git c`` would complete to ``git 'checkout '`` because git adds an extra space
to the end of the completion, which was being captured in the completion. Xonsh now fixes the git issue
while retaining all whitespace when there is other internal whitespace.

====================

**Added:**

* Added an alias command, matching bash's implementation, available as part of bashisms.
* New ``$AUTO_SUGGEST_IN_COMPLETIONS`` environment variable that enables/disables
whether the auto-suggestion result appears in the tab completions.
* Added ``__add__()`` and ``__radd__()`` methods to ``EnvPath``.
* Xonsh now supports f-strings, as in Python v3.6+.
* Added ``ipython`` as unthreadable in command cache threadabilty predictors.
* Added ``whole_word_jumping`` xontrib
* Added ``$XONSH_APPEND_NEWLINE`` environment variable
* Support for PEP 515: Underscores in Numeric Literals
* ``xonsh.color_tools.make_palette()``

Simple rename of the pre-existing
``xonsh.color_tools.make_pallete()`` function.

* ``xonsh.tools.decorator()`` function/method decorator.

This allows for an API function to be annotated with a
decorator that documents deprecation, while also tying in
functionality that will warn a user that the function has
been deprecated, and, raise an ``AssertionError`` if the
function has passed its expiry date.
* New xontrib ``schedule`` (Xonsh Task Scheduler)


**Changed:**

* ``on_pre_prompt`` is now fired before prompt calculations are made, allowing modifications to the prompt.
* ``emacsclient`` will now return false in the threadable predictors.
* Improved the autopair behavior to match that of popular code editors.
* Moved the lazy ``pkg_resources`` package back to its original
place. The will hopefully address some of the slowdown issues
experiances on some platforms.
* When xonsh is used to run an ``xsh`` script, the ``xonshrc`` is not loaded
* Change in the behavior of the default predictor with binary analysis. The pattern ``libgpm`` is use, assuming when ``gpm`` is used the program is not threadable. This change solves issues with programs as ``links``.
* Error messages added to the ``source`` command if it is used with a language
that is not xonsh or Python.


**Deprecated:**

* ``xonsh.color_tools.make_pallette()``

Deprecated in release 0.5.10 and will be removed in release 0.6.0.


**Fixed:**

* Now f-strings can be used inside () without explicit enclosing command in ![]
* Fix for ``x, y, *z = ...`` unpacking.
* Git branch detection now correctly passes the environment down to the subprocess
call. This allows for branch detection when git is installed into a non-standard
location.
* Escape regex characters in ``path_complete`` to avoid regex parsing errors for
certain combinations of characters in path completer
* gistatus: Fixed hash not being shown when in detaced HEAD and there are no tags
* Fix branch colorization when ``git`` or ``hg`` are aliases.
* Fixed leftover ``.git/index.lock`` in ``gitstatus``
* Made JSON history loading more robust to corrupt files.
* Starting a new command with an open parentheses will no longer
throw a traceback when ``$UPDATE_COMPLETIONS_ON_KEYPRESS`` is
``True``.
* Automatically wrapping subprocess calls would sometimes include
semincolons and other line-ending tokens, rather than stopping at them.
This has been fixed.
* Numerous spelling errors in documentation, docstrings/comments, text
strings and local variable names.

* Spelling error in the ``xonsh.color_tools.make_pallete()`` public
function declaration. This was fixed by renaming the function to
``xonsh.color_tools.make_palette()`` while maintaining a binding
of ``make_pallete()`` to the new ``make_palette()`` in case users
are already used to this API.
* Fixed issue with starting triple quote strings being run as a command.
* Fixed a problem with escaping charet (^) character for cmd.exe in the source-cmd function.
* ``EOF in multi-line statement`` errors were misreported as being on line 0.
Now they are correctly reported as being on the last line of the file.

====================

**Fixed:**

* Fixed ``release.xsh`` to prevent it from dirtying the repo on release and
leading to an unwanted ``.dev`` suffix on the version number

====================

**Added:**

* ``release.xsh`` creates a github release with the merged news entries as the
release body


**Fixed:**

* ``xonfig`` now displays the proper value for "on linux"

====================

**Added:**

* Added ``xclip`` and ``repo`` to default threadable predictors (Issues 2355
and 2348)
* Pretty printing of the $PATH variable
* Add "fzf-widgets" xontrib which provides fuzzy search productivity widgets
with on custom keybindings to xontrib list.
* New ``free_cwd`` xontrib for Windows, which prevent the current directory from being locked when the prompt is shown.
This allows the other programs or Windows explorer to delete the current or parent directory. This is accomplished by
resetting the CWD to the users home directory temporarily while the prompt is displayed. The directory is still locked
while any commands are processed so xonsh still can't remove it own working directory.


**Changed:**

* Codecov threshold to 2%


**Removed:**

* On Windows environments variables in wrapped like``%foo%`` are no longer expanded automatically.


**Fixed:**

* Fixed the ``--rc`` option so it now runs xonsh with the specified rc file
* ``$`` operator now functions properly when returned command is an alias
* Correct line continuation would not work on Windows if the line continuations were used
in the ``xonshrc`` file.
* Fixed a regression in the Windows ``sudo`` command, that allows users to run elevated commands in xonsh.
* Fix echo command from xoreutils.
* Fixed a bug on Windows which meant xonsh wasn't using PATH environment variable but instead relying on a default
value from the windows registry.

====================

**Added:**

* Add ``Alt .`` keybinding to ``bashisms-xontrib`` to insert last argument of
previous command into current buffer


**Fixed:**

* Fix crash when openSSH version of bash is on PATH on Windows.
* Added missing ensurers to make sure that ``bool`` env_vars are bools and
``int`` env_vars are integers:

* ``DIRSTACK_SIZE``
* ``EXPAND_ENV_VARS``
* ``PUSHD_MINUS``
* ``PUSHD_SILENT``
* ``SUGGEST_COMMANDS``
* ``SUGGEST_MAX_NUM``
* ``SUGGEST_THRESHOLD``