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Create pre-defined window/pane layouts and run commands in iTerm, updated to work with Python3

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Introduction

iTermocil allows you to setup pre-configured layouts of windows and panes in iTerm2, having each open in a specified directory and execute specified commands. You do this by writing YAML files to save your layouts. If your using session restoration or saved window layouts in iTerm, you should find iTermocil is a nice upgrade on that.

iTermocil supports iTerm 2.x and the new 3.x (including later betas). It works better with the new 3.x versions which have improved Applescript support.

Example

Installing iTermocil

pip3 install git+https://github.com/PythonicNinja/itermocil

Using iTermocil

$ itermocil [options] <layout-name>

Alternatively, if you have an iTermocil.yml file in the current directory you can simply run itermocil and it will use that file, so you can have files inside your projects and sync via Github etc:

$ cd my_project
$ itermocil

iTermocil is compatible with all of teamocil's flags, and they all work in the same way.

Global options

Option Description
--list Lists all available layouts in ~/.itermocil

Layout options

Option Description
--layout Takes a custom file path to a YAML layout file instead of [layout-name]
--here Uses the current window as the layout’s first window
--edit Edit the layout file in either $EDITOR or your preferred GUI editor
--show Shows the layout content instead of executing it

Configuration

Session

Key Description
name This is currently ignored in iTermocil as there is no tmux session.
windows An Array of windows
pre Command that get executes before all other actions.

Windows

Key Description
name All iTerm panes in this window will be given this name.
root The path where all panes in the window will be started
layout The layout format that iTermocil will use (see below)
panes An Array of panes
command A command to run in the current window. Ignored if panes is present
commands An array of commands for run in the current window. Ignored if either panes or command is present
focus This is currently unsupported in iTermocil

Panes

A pane can either be a String or a Hash. If it’s a String, Teamocil will treat it as a single-command pane.

Key Description
commands An Array of commands that will be ran when the pane is created
focus If set to true, the pane will be selected after the layout has been executed

Examples

See some example of various layouts below, or see Layouts for more information on the available layouts. There is also a variety of example layout files in this repo.

Simple two pane window

windows:
  - name: sample-two-panes
    root: ~/Code/sample/www
    layout: even-horizontal
    panes:
      - git status
      - rails server
.------------------.------------------.
| (0)              | (1)              |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

Simple three pane window

windows:
  - name: sample-three-panes
    root: ~/Code/sample/www
    layout: main-vertical
    panes:
      - vim
      - commands:
        - git pull
        - git status
        name: 'git'
      - rails server

Note: the 'name' directive in 'commands' in an iTermocil specific addition, which will cause teamocil to fail if it tries to parse the file.

.------------------.------------------.
| (0)              | (1)              |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |------------------|
|                  | (2)              |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

Simple three pane window (flipped)

windows:
  - name: sample-three-panes
    root: ~/Code/sample/www
    layout: main-vertical-flipped
    panes:
      - commands:
        - git pull
        - git status
      - rails server
      - vim
.------------------.------------------.
| (0)              | (2)              |
|                  |                  |
|                  |                  |
|                  |                  |
|------------------|                  |
| (1)              |                  |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

Simple four pane window

windows:
  - name: sample-four-panes
    root: ~/Code/sample/www
    layout: tiled
    panes:
      - vim
      - foreman start web
      - git status
      - foreman start worker
.------------------.------------------.
| (0)              | (1)              |
|                  |                  |
|                  |                  |
|                  |                  |
|------------------|------------------|
| (2)              | (3)              |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

Two pane window with focus in second pane

windows:
  - name: sample-two-panes
    root: ~/Code/sample/www
    layout: even-horizontal
    panes:
      - rails server
      - commands:
          - rails console
        focus: true
.------------------.------------------.
| (0)              | (1) <focus here> |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

A pane-less window

windows:
  - name: pane-less
    root: ~/Code/sample/www
    command: rails console
windows:
  - name: one_more-pane-less
    root: ~/Code/sample/www
    commands:
      - bundle update
      - rails server

Additional Layouts

In the Layouts file you can see these additional layouts:

  • 3_columns - 3 columns with as many rows as needed
  • double-main-vertical - 2 left full height columns, and a third multi-row column
  • double-main-horizontal - 2 rows, where bottom row is 2 full width columns, and top row is multi-column

teamocil

iTermocil was originally inspired by and is compatible with teamocil, allowing anyone with teamocil files to execute those files natively in iTerm2, without needing tmux or any other dependency. However, iTermocil also has support for additional directives which will cause teamocil to fail, if used.

Notes

Teamocil allows supplying a name for a tmux session which has no purpose in iTerm, and so that option is ignored.

In tmux it is 'windows' that have names, whereas in iTerm each pane in a window can have a name. iTermocil will name all the child panes of a window by the window name given in a termocil file.

iTermocil works for iTerm 2+, but the script support is better in iTerm 2.9 beta so things run a bit faster/cleaner with iTerm 2.9+. If using beta builds you should grab the latest nightly, as the 2.9.20150626 'recommended beta' build does not have the required script hooks for iTermocil to work (and I have no plans to kludge something just for an incomplete beta that will never be released).

Currently, everything is Python 2 and so if you are using Python 3 by default you may need to tweak the #! line.

Shell autocompletion

Zsh autocompletion

To get autocompletion when typing itermocil <Tab> in a zsh session, add this line to your ~/.zshrc file:

compctl -g '~/.itermocil/*(:t:r)' itermocil

Bash autocompletion

To get autocompletion when typing itermocil <Tab> in a bash session, add this line to your ~/.bashrc file:

complete -W "$(itermocil --list)" itermocil

fish autocompletion

To get autocompletion when typing itermocil <Tab> in a fish session, add this line to your ~/.config/fish/config.fish file:

complete -c itermocil -a "(itermocil --list)"

Contributors

I'd love any ideas/feedback/thoughts, please open an issue or create a fork and send a pull request, like these wonderful people:

A huge thanks to Rémi Prévost who authored teamocil, which inspired iTermocil. It is a fantastic tool, and I'm hoping that iTermocil helps more people discover teamocil.

To Do

  • make a way to 'save' the current layout (not sure is possible)
  • add tmuxinator file support
  • add support for bespoke file format to support things like iTerm badges and tab colours
  • possibly add a flag for using windows instead of tabs for new 'windows'
  • pane 'focus' is supported, but window 'focus' is not yet - I'm not sure how to focus on a certain window still
  • with the --edit flag, if no $EDITOR is set and a new layout name is given, then an empty file is created to be opened in a GUI editor. Is there a better way to handle this? Maybe clean up blank files whenever itermocil is launched?

License

This repo is updated version of original (https://github.com/TomAnthony/itermocil) which didn't support python3

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Create pre-defined window/pane layouts and run commands in iTerm, updated to work with Python3

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