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gpakosz
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Description

🇫🇷 Oh My Tmux! Pretty & versatile tmux configuration made with ❤️

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.tmux

Self-contained, pretty and versatile

.tmux.conf
configuration file.

Screenshot

Installation

Requirements:

  • tmux
    >= 2.1
    (soon
    >= 2.4
    ) running inside Linux, Mac, OpenBSD, Cygwin or WSL
  • awk, perl and sed
  • outside of tmux,
    $TERM
    must be set to
    xterm-256color

To install, run the following from your terminal: (you may want to backup your existing

~/.tmux.conf
first)
$ cd
$ git clone https://github.com/gpakosz/.tmux.git
$ ln -s -f .tmux/.tmux.conf
$ cp .tmux/.tmux.conf.local .

💡 You can clone the repository anywhere you want, provided you create the proper

~/.tmux.conf
symlink and you copy the
.tmux.conf.local
sample file in your home directory:
$ git clone https://github.com/gpakosz/.tmux.git /path/to/oh-my-tmux
$ ln -s -f /path/to/oh-my-tmux/.tmux.conf ~/.tmux.conf
$ cp /path/to/oh-my-tmux/.tmux.conf.local ~/.tmux.conf.local

Then proceed to customize your

~/.tmux.conf.local
copy.

If you're a Vim user, setting the

$EDITOR
environment variable to
vim
will enable and further customize the vi-style key bindings (see tmux manual).

If you're new to tmux, I recommend you read tmux 2: Productive Mouse-Free Development by @bphogan.

Troubleshooting

  • I'm running tmux
    HEAD
    and things don't work properly. What should I do?

Please open an issue describing what doesn't work with upcoming tmux. I'll do my best to address it.

  • Status line is broken and/or gets duplicated at the bottom of the screen. What gives?

This particularly happens on Linux when the distribution provides a version of glib that received Unicode 9.0 upgrades (glib

>= 2.50.1
) while providing a version of glibc that didn't (glibc
< 2.26
). You may also configure
LC_CTYPE
to use an
UTF-8
locale. Typically VTE based terminal emulators rely on glib's
g_unichar_iswide()
function while tmux relies on glibc's
wcwidth()
function. When these two functions disagree, display gets messed up.

This can also happen on macOS when using iTerm2 and "Use Unicode version 9 character widths" is enabled in

Preferences... > Profiles > Text

For that reason, the default

~/.tmux.conf.local
file stopped using Unicode characters for which width changed in between Unicode 8.0 and 9.0 standards, as well as Emojis.
  • I installed Powerline and/or (patched) fonts but can't see Powerline symbols.

First, you don't need to install Powerline. You only need fonts patched with Powerline symbols or the standalone

PowerlineSymbols.otf
font. Then make sure your
~/.tmux.conf.local
copy uses the right code points for
tmux_conf_theme_left_separator_XXX
values.
  • I'm using Bash On Windows (WSL), colors and Powerline look are broken.

There is currently a bug in the new console powering Bash On Windows preventing text attributes (bold, underscore, ...) to combine properly with colors. The workaround is to search your

~/.tmux.conf.local
copy and replace attributes with
'none'
.

Also, until Window's console replaces its GDI based render with a DirectWrite one, Powerline symbols will be broken.

The alternative is to use the Mintty terminal for WSL.

Features

  • C-a
    acts as secondary prefix, while keeping default
    C-b
    prefix
  • visual theme inspired by Powerline
  • maximize any pane to a new window with
     +
  • SSH/Mosh aware username and hostname status line information
  • mouse mode toggle with
     m
  • automatic usage of
    reattach-to-user-namespace
    if available
  • laptop battery status line information
  • uptime status line information
  • optional highlight of focused pane (tmux
    >= 2.1
    )
  • configurable new windows and panes behavior (optionally retain current path)
  • SSH/Mosh aware split pane (reconnects to remote server)
  • copy to OS clipboard (needs
    reattach-to-user-namespace
    on macOS,
    xsel
    or
    xclip
    on Linux)
  • support for 4-digit hexadecimal Unicode characters (requires
    perl
    or Bash >= 4.1.2)
  • Facebook PathPicker integration if available
  • Urlview integration if available

The "maximize any pane to a new window with

 +
" feature is different from builtin
resize-pane -Z
as it allows you to further split a maximized pane. It's also more flexible by allowing you to maximize a pane to a new window, then change window, then go back and the pane is still in maximized state in its own window. You can then minimize a pane by using
 +
either from the source window or the maximized window.

Maximize pane

Mouse mode allows you to set the active window, set the active pane, resize panes and automatically switches to copy-mode to select text.

Mouse mode

Bindings

tmux may be controlled from an attached client by using a key combination of a prefix key, followed by a command key. This configuration uses

C-a
as a secondary prefix while keeping
C-b
as the default prefix. In the following list of key bindings: -
 means you have to either hit Ctrl + a or Ctrl + b
  - 
 c
means you have to hit Ctrl + a or Ctrl + b followed by c -
 C-c
means you have to hit Ctrl + a or Ctrl + b followed by Ctrl + c

This configuration uses the following bindings:

  •  e
    opens
    ~/.tmux.conf.local
    with the editor defined by the
    $EDITOR
    environment variable (defaults to
    vim
    when empty)
  •  r
    reloads the configuration
  • C-l
    clears both the screen and the tmux history
  •  C-c
    creates a new session
  •  C-f
    lets you switch to another session by name
  •  C-h
    and
     C-l
    let you navigate windows (default
     n
    and
     p
    are unbound)
  •  Tab
    brings you to the last active window
  •  -
    splits the current pane vertically
  •  _
    splits the current pane horizontally
  •  h
    ,
     j
    ,
     k
    and
     l
    let you navigate panes ala Vim
  •  H
    ,
     J
    ,
     K
    ,
     L
    let you resize panes
  •  <
    and
     >
    let you swap panes
  •  +
    maximizes the current pane to a new window
  •  m
    toggles mouse mode on or off
  •  U
    launches Urlview (if available)
  •  F
    launches Facebook PathPicker (if available)
  •  Enter
    enters copy-mode
  •  b
    lists the paste-buffers
  •  p
    pastes from the top paste-buffer
  •  P
    lets you choose the paste-buffer to paste from

Additionally,

copy-mode-vi
matches my own Vim configuration

Bindings for

copy-mode-vi
:
  • v
    begins selection / visual mode
  • C-v
    toggles between blockwise visual mode and visual mode
  • H
    jumps to the start of line
  • L
    jumps to the end of line
  • y
    copies the selection to the top paste-buffer
  • Escape
    cancels the current operation

Configuration

While this configuration tries to bring sane default settings, you may want to customize it further to your needs. Instead of altering the

~/.tmux.conf
file and diverging from upstream, the proper way is to edit the
~/.tmux.conf.local
file.

Please refer to the sample

.tmux.conf.local
file to know more about variables you can adjust to alter different behaviors. Pressing
 e
will open
~/.tmux.conf.local
with the editor defined by the
$EDITOR
environment variable (defaults to
vim
when empty).

Enabling the Powerline look

Powerline originated as a status-line plugin for Vim. Its popular eye-catching look is based on the use of special symbols: Powerline Symbols

To make use of these symbols, there are several options:

Please see the Powerline manual for further details.

Then edit your

~/.tmux.conf.local
copy (with
 e
) and adjust the following variables:
tmux_conf_theme_left_separator_main='\uE0B0'
tmux_conf_theme_left_separator_sub='\uE0B1'
tmux_conf_theme_right_separator_main='\uE0B2'
tmux_conf_theme_right_separator_sub='\uE0B3'

Configuring the status line

Contrary to the first iterations of this configuration, by now you have total control on the content and order of

status-left
and
status-right
.

Edit your

~/.tmux.conf.local
copy (
 e
) and adjust the
tmux_conf_theme_status_left
and
tmux_conf_theme_status_right
variables to your own preferences.

This configuration supports the following builtin variables:

  • #{battery_bar}
    : horizontal battery charge bar
  • #{battery_percentage}
    : battery percentage
  • #{battery_status}
    : is battery charging or discharging?
  • #{battery_vbar}
    : vertical battery charge bar
  • #{circled_session_name}
    : circled session number, up to 20
  • #{hostname}
    : SSH/Mosh aware hostname information
  • #{hostname_ssh}
    : SSH/Mosh aware hostname information, blank when not connected to a remote server through SSH/Mosh
  • #{loadavg}
    : load average
  • #{pairing}
    : is session attached to more than one client?
  • #{prefix}
    : is prefix being depressed?
  • #{root}
    : is current user root?
  • #{synchronized}
    : are the panes synchronized?
  • #{uptime_y}
    : uptime years
  • #{uptime_d}
    : uptime days, modulo 365 when
    #{uptime_y}
    is used
  • #{uptime_h}
    : uptime hours
  • #{uptime_m}
    : uptime minutes
  • #{uptime_s}
    : uptime seconds
  • #{username}
    : SSH/Mosh aware username information
  • #{username_ssh}
    : SSH aware username information, blank when not connected to a remote server through SSH/Mosh

Beside custom variables mentioned above, the

tmux_conf_theme_status_left
and
tmux_conf_theme_status_right
variables support usual tmux syntax, e.g. using
#()
to call an external command that inserts weather information provided by

tmuxconfthemestatusright='#{prefix}#{pairing}#{synchronized} #(curl -m 1 wttr.in?format=3 2>/dev/null; sleep 900) , %R , %d %b | #{username}#{root} | #{hostname} ' ``

The
sleep 900
call makes sure the network request is issued at most every 15
minutes whatever the value of
status-interval`.

Weather information from wttr.in

wttr.in: https://github.com/chubin/wttr.in#one-line-output

💡 You can also define your own custom variables. See the sample

.tmux.conf.local
file for instructions.

Finally, remember

tmux_conf_theme_status_left
and
tmux_conf_theme_status_right
end up being given to tmux as
status-left
and
status-right
which means they're passed through
strftime()
. As such, the
%
character has a special meaning and needs to be escaped by doubling it, e.g.
tmux_conf_theme_status_right='#(echo foo %% bar)'
See
man 3 strftime
.

Accessing the macOS clipboard from within tmux sessions

Chris Johnsen created the

reattach-to-user-namespace
utility that makes

pbcopy
and
pbpaste
work again within tmux.

To install

reattach-to-user-namespace
, use either [MacPorts][] or [Homebrew][]:
$ port install tmux-pasteboard

or

$ brew install reattach-to-user-namespace

Once installed,

reattach-to-usernamespace
will be automatically detected.

[MacPorts]: http://www.macports.org/ [Homebrew]: http://brew.sh/

Using the configuration under Cygwin within Mintty

I don't recommend running this configuration with Cygwin anymore. Forking under Cygwin is extremely slow and this configuration issues a lot of

run-shell
commands under the hood. As such, you will experience high CPU usage. As an alternative consider using Mintty terminal for WSL.

cygwin

It is possible to use this configuration under Cygwin within Mintty, however support for Unicode symbols and emojis lacks behind Mac and Linux.

Particularly, Mintty's text rendering is implemented with GDI which has limitations:

  • color emojis are only available through DirectWrite starting with Windows 8.1
  • display of double width symbols, like the battery discharging symbol indicator (U+1F50B) is buggy

To get Unicode symbols displayed properly, you have to use [font linking]. Open

regedit.exe
then navigate to the registry key at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink
and add a new entry for you preferred font to link it with the Segoe UI Symbol font.

regedit

[font linking]: https://msdn.microsoft.com/en-us/goglobal/bb688134.aspx

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