Teamocil is a simple tool used to automatically create sessions, windows and splits in tmux with YAML files.

$ gem install teamocil
$ mkdir ~/.teamocil
$ teamocil --edit sample
$ tmux
$ teamocil sample

• --here opens the session in the current window, it doesn’t create an empty first window.
• --layout takes a custom file path to a YAML layout file.
• --edit opens the layout file (whether or not --layout is used) with $EDITOR.
• --list lists all available layouts.

A layout file is a single YAML file located in ~/.teamocil (eg. ~/.teamocil/my-project.yml).

You can wrap your entire layout file in a session and Teamocil will rename the current session (so that you can find it more easily when running tmux list-sessions) before creating your windows.

• name (the name of the session)

session:
  name: "my-awesome-session"
  windows:
    [windows list]

If you are not using a top-level session key, then the first key of your layout file will be windows, an array of window items.

• name (the name that will appear in tmux statusbar)
• root (the directory in which every split will be created)
• filters (a hash of before and after commands to run for each split)
• splits (an array of split items)
• options (a hash of tmux options, see man tmux for a list)

windows:
  - name: "my-first-window"
    options:
      synchronize-panes: true
    root: "~/Projects/foo-www"
    filters:
      before:
        - "echo 'Let’s use ruby-1.9.2 for each split in this window.'"
        - "rvm use 1.9.2"
    splits:
      [splits list]
  - name: "my-second-window"
    root: "~/Projects/foo-api"
    splits:
      [splits list]
  - name: "my-third-window"
    root: "~/Projects/foo-daemons"
    splits:
      [splits list]

Every window must define an array of splits that will be created within it. A vertical or horizontal split will be created, depending on whether the width or height parameter is used.

• cmd (the commands to initially execute in the split)
• width (the split width, in percentage)
• height (the split width, in percentage)
• target (the split to set focus on, before creating the current one)

windows:
  - name: "my-first-window"
    root: "~/Projects/foo-www"
    filters:
      before: "rvm use 1.9.2"
      after: "echo 'I am done initializing this split.'"
    splits:
      - cmd: "git status"
      - cmd: "bundle exec rails server --port 4000"
        width: 50
      - cmd:
          - "sudo service memcached start"
          - "sudo service mongodb start"
        height: 50

See more example files in the examples directory.

windows:
  - name: "sample-two-splits"
    root: "~/Code/sample/www"
    splits:
      - cmd: ["pwd", "ls -la"]
      - cmd: "rails server --port 3000"
        width: 50

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

windows:
  - name: "sample-four-splits"
    root: "~/Code/sample/www"
    splits:
      - cmd: "pwd"
      - cmd: "pwd"
        width: 50
      - cmd: "pwd"
        height: 50
        target: "bottom-right"
      - cmd: "pwd"
        height: 50
        target: "bottom-left"

.------------------.------------------.
| (0)              | (1)              |
|                  |                  |
|                  |                  |
|                  |                  |
|------------------|------------------|
| (3)              | (2)              |
|                  |                  |
|                  |                  |
|                  |                  |
'------------------'------------------'

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

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

• Making sure the layout is valid before executing it (ie. throw exceptions).
• Add more specs.

Feel free to contribute and submit issues/pull requests on GitHub, just like these fine folks did:

• Samuel Garneau (garno)
• Jimmy Bourassa (jbourassa)

Take a look at the spec folder before you do, and make sure bundle exec rake spec passes after your modifications :)

Teamocil is © 2011-2012 Rémi Prévost and may be freely distributed under the LITL license. See the LICENSE file.