oh-my-fish/README.md
Derek Stavis a716badfd4 Implement safe shell reloading inside omf plugin
This commit adds an improved reload code for Oh My Fish, besides
saving the history now the reloading technique keeps directory
history and stack and clears fish_greeting, for a transparent
transition.

The reloading code is now safe regarding to background jobs. exec
wipes fish job control, so the user-facing code under the (just-
introduced by this commit) `omf reload` command is kept safe by a
warning. For testing purposes, `omf update` and `omf remove` rolls
automatic refresh only when `OMF_AUTO_RELOAD` variable is set.

Recap of the commit:
- Add improved reload code (omf.reload)
- Add a safe reload code (omf.cli.reload)
- Add `omf reload` command
- Add opt-in reload to `omf update` and `omf remove` commands
2016-03-24 18:43:23 -03:00

132 lines
5.3 KiB
Markdown

<img src="https://cdn.rawgit.com/oh-my-fish/oh-my-fish/e4f1c2e0219a17e2c748b824004c8d0b38055c16/docs/logo.svg" align="left" width="192px" height="192px"/>
<img align="left" width="0" height="192px" hspace="10"/>
> The <a href="http://fishshell.com">Fishshell</a> Framework
[![MIT License](https://img.shields.io/badge/license-MIT-007EC7.svg?style=flat-square)](/LICENSE.md) [![Fish Shell Version](https://img.shields.io/badge/fish-v2.2.0-007EC7.svg?style=flat-square)](http://fishshell.com) [![Travis Build Status](http://img.shields.io/travis/oh-my-fish/oh-my-fish.svg?style=flat-square)](https://travis-ci.org/oh-my-fish/oh-my-fish) [![Slack Status](https://oh-my-fish-slack.herokuapp.com/badge.svg)](https://oh-my-fish-slack.herokuapp.com)
Oh My Fish provides core infrastructure to allow you to install packages which extend or modify the look of your shell. It's fast, extensible and easy to use.
<br><br>
<p align="center">
<b>English</b> &bull;
<a href="docs/zh-CN">简体中文</a> &bull;
<a href="docs/ru-RU">Русский</a>
</p>
## Installation
```fish
curl -L https://github.com/oh-my-fish/oh-my-fish/raw/master/bin/install | fish
omf help
```
Or _download_ and run it yourself:
```fish
curl -L https://github.com/oh-my-fish/oh-my-fish/raw/master/bin/install > install
fish install
```
# Getting Started
Oh My Fish includes a small utility `omf` to fetch and install new packages and themes.
#### `omf update` _`[omf]`_ _`[<package>...]`_
Update the framework and installed packages.
- When called without arguments, update core and all installed packages.
- You can choose to update only the core, by running `omf update omf`.
- For selective package update, list only the names of packages you wish to
update. You may still include "omf" in the list to update the core as well.
#### `omf install` _`[<name>|<url>]`_
Install one _or more_ packages.
- You can install packages directly by URL via `omf install URL`
- When called without arguments, install missing packages from [bundle](#dotfiles).
#### `omf list`
List installed packages.
#### `omf theme` _`<theme>`_
Apply a theme. To list available themes, type `omf theme`. You can also [preview available themes](./docs/Themes.md) before installing.
#### `omf remove` _`<name>`_
Remove a theme or package.
> Packages subscribed to `uninstall_<pkg>` events are notified before the package is removed, so custom cleanup of resources can be done. See [Uninstall](/docs/en-US/Packages.md#uninstall) for more information.
#### `omf reload`
Reload Oh My Fish and all plugins by using `exec` to replace current shell process with a brand new.
> This command try to be as safe as possible, mitigating side-effects caused by `exec` and preventing the reload in case of background processes.
#### `omf new pkg | theme` _`<name>`_
Scaffold out a new package or theme.
> This creates a new directory under `$OMF_CONFIG/{pkg | themes}/` with a template.
#### `omf submit` _`pkg/<name>`_ _`[<url>]`_
Add a new package. To add a theme, use `omf submit` _`themes/<name>`_ _`<url>`_.
Make sure to [send us a PR][omf-pulls-link] to update the registry.
#### `omf doctor`
Use to troubleshoot before [opening an issue][omf-issues-new].
#### `omf destroy`
Uninstall Oh My Fish.
## Advanced
Oh My Fish installer places its startup code in your fish config file (`~/.config/fish/config.fish`).
### Startup
Every time you open a new shell, the startup code initializes Oh My Fish installation path and the _config_ path (`~/.config/omf` by default), sourcing the [`init.fish`](init.fish) script afterwards, which autoloads packages, themes and your custom init files.
For more information check the [FAQ](docs/en-US/FAQ.md#what-does-oh-my-fish-do-exactly).
### Dotfiles
The `$OMF_CONFIG` directory represents the user state of Oh My Fish. It is the perfect
candidate for being added to your dotfiles and/or checked out to version control. There are four important files:
- __`theme`__ - The current theme
- __`bundle`__ - List of currently installed packages/themes
- __`init.fish`__ - Custom script sourced after shell start
- __`before.init.fish`__ - Custom script sourced before shell start
It's highly recommended that your custom startup commands go into `init.fish` file instead of `~/.config/fish/config.fish`, as this allows you to keep the whole `$OMF_CONFIG` directory under version control.
If you need startup commands to be run *before* Oh My Fish begins loading plugins, place them in `before.init.fish` instead. If you're unsure, it is usually best to put things in `init.fish`.
#### About the bundle
Every time a package/theme is installed or removed, the `bundle` file is updated. You can also edit it manually and run `omf install` afterwards to satisfy the changes. Please note that while packages/themes added to the bundle get automatically installed, a package/theme removed from bundle isn't removed from user installation.
## Creating Packages
Oh My Fish uses an advanced and well defined plugin architecture to ease plugin development, including init/uninstall events and function autoloading. [See the documentation](docs/en-US/Packages.md) for more details.
[fishshell]: http://fishshell.com
[contributors]: https://github.com/oh-my-fish/oh-my-fish/graphs/contributors
[omf-pulls-link]: https://github.com/oh-my-fish/oh-my-fish/pulls
[omf-issues-new]: https://github.com/oh-my-fish/oh-my-fish/issues/new