Powerline is a statusline plugin for vim, and provides statuslines and prompts for several other applications, including zsh, bash, tmux, IPython, Awesome and Qtile.
Reasoning:
1. vt* TERMs (used to be vt100 here) make tmux-1.9 use different and identical
colors for inactive windows. This is not like tmux-1.6: foreground color is
different from separator color and equal to (0, 102, 153) for some reason
(separator has correct color). tmux-1.8 is fine, so are older versions
(though tmux-1.6 and tmux-1.7 do not have highlighting for previously active
window) and my system tmux-1.9a.
2. screen, xterm and some other non-256color terminals both have the same issue
and make libvterm emit complains like `Unhandled CSI SGR 3231`.
3. screen-256color, xterm-256color and other -256color terminals make libvterm
emit complains about unhandled escapes to stderr.
4. `st-256color` does not have any of the above problems, but it may be not
present on the target system because it is installed with x11-terms/st and
not with sys-libs/ncurses.
For the given reasons decision was made: to fix tmux-1.9 tests and not make
libvterm emit any data to stderr st-256color $TERM should be used, up until
libvterm has its own terminfo database entry (if it ever will). To make sure
that relevant terminfo entry is present on the target system it should be
distributed with powerline test package. To make distribution not require
modifying anything outside of powerline test directory TERMINFO variable is set.
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Powerline
=========
:Author: Kim Silkebækken (kim.silkebaekken+vim@gmail.com)
:Source: https://github.com/powerline/powerline
:Version: beta
**Powerline is a statusline plugin for vim, and provides statuslines and
prompts for several other applications, including zsh, bash, tmux, IPython,
Awesome and Qtile.**
* `Support forum`_ (powerline-support@googlegroups.com)
* `Development discussion`_ (powerline-dev@googlegroups.com)
.. image:: https://api.travis-ci.org/powerline/powerline.png?branch=develop
:target: `travis-build-status`_
:alt: Build status
.. _travis-build-status: https://travis-ci.org/powerline/powerline
.. _`Support forum`: https://groups.google.com/forum/#!forum/powerline-support
.. _`Development discussion`: https://groups.google.com/forum/#!forum/powerline-dev
Features
--------
* **Extensible and feature rich, written in Python.** Powerline was
completely rewritten in Python to get rid of as much vimscript as
possible. This has allowed much better extensibility, leaner and better
config files, and a structured, object-oriented codebase with no mandatory
third-party dependencies other than a Python interpreter.
* **Stable and testable code base.** Using Python has allowed unit testing
of all the project code. The code is tested to work in Python 2.6+ and
Python 3.
* **Support for prompts and statuslines in many applications.** Originally
created exclusively for vim statuslines, the project has evolved to
provide statuslines in tmux and several WMs, and prompts for shells like
bash/zsh and other applications. It’s simple to write renderers for any
other applications that Powerline doesn’t yet support.
* **Configuration and colorschemes written in JSON.** JSON is
a standardized, simple and easy to use file format that allows for easy
user configuration across all of Powerline’s supported applications.
* **Fast and lightweight, with daemon support for even better performance.**
Although the code base spans a couple of thousand lines of code with no
goal of “less than X lines of code”, the main focus is on good performance
and as little code as possible while still providing a rich set of
features. The new daemon also ensures that only one Python instance is
launched for prompts and statuslines, which provides excellent
performance.
*But I hate Python / I don’t need shell prompts / this is just too much
hassle for me / what happened to the original vim-powerline project / …*
You should check out some of the Powerline derivatives. The most lightweight
and feature-rich alternative is currently Bailey Ling’s `vim-airline
<https://github.com/bling/vim-airline>`_ project.
------
* Consult the `documentation
<https://powerline.readthedocs.org/en/latest/>`_ for more information and
installation instructions.
* Check out `powerline-fonts <https://github.com/powerline/fonts>`_ for
pre-patched versions of popular, open source coding fonts.
Screenshots
-----------
Vim statusline
^^^^^^^^^^^^^^
**Mode-dependent highlighting**
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-mode-normal.png
:alt: Normal mode
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-mode-insert.png
:alt: Insert mode
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-mode-visual.png
:alt: Visual mode
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-mode-replace.png
:alt: Replace mode
**Automatic truncation of segments in small windows**
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-truncate1.png
:alt: Truncation illustration
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-truncate2.png
:alt: Truncation illustration
* .. image:: https://raw.github.com/powerline/powerline/develop/docs/source/_static/img/pl-truncate3.png
:alt: Truncation illustration
----
The font in the screenshots is `Pragmata Pro`_ by Fabrizio Schiavi.
.. _`Pragmata Pro`: http://www.fsd.it/fonts/pragmatapro.htm
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