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157 lines
5.6 KiB
Markdown
157 lines
5.6 KiB
Markdown
# zsh-autosuggestions
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_[Fish](http://fishshell.com/)-like fast/unobtrusive autosuggestions for zsh._
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It suggests commands as you type, based on command history.
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<a href="https://asciinema.org/a/37390" target="_blank"><img src="https://asciinema.org/a/37390.png" width="400" /></a>
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## Installation
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### Manual
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1. Clone this repository somewhere on your machine. This guide will assume `~/.zsh/zsh-autosuggestions`.
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```sh
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git clone git://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions
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```
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2. Add the following to your `.zshrc`:
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```sh
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source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh
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```
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3. Start a new terminal session.
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### Oh My Zsh
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1. Clone this repository into `$ZSH_CUSTOM/plugins` (by default `~/.oh-my-zsh/custom/plugins`)
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```sh
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git clone git://github.com/zsh-users/zsh-autosuggestions $ZSH_CUSTOM/plugins/zsh-autosuggestions
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```
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2. Add the plugin to the list of plugins for Oh My Zsh to load:
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```sh
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plugins=(zsh-autosuggestions)
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```
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3. Start a new terminal session.
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## Usage
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As you type commands, you will see a completion offered after the cursor in a muted gray color. This color can be changed by setting the `ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE` variable. See [configuration](#configuration).
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If you press the <kbd>→</kbd> key (`forward-char` widget) or <kbd>End</kbd> (`end-of-line` widget) with the cursor at the end of the buffer, it will accept the suggestion, replacing the contents of the command line buffer with the suggestion.
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If you invoke the `forward-word` widget, it will partially accept the suggestion up to the point that the cursor moves to.
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## Configuration
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You may want to override the default global config variables after sourcing the plugin. Default values of these variables can be found [here](src/config.zsh).
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**Note:** If you are using Oh My Zsh, you can put this configuration in a file in the `$ZSH_CUSTOM` directory. See their comments on [overriding internals](https://github.com/robbyrussell/oh-my-zsh/wiki/Customization#overriding-internals).
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### Suggestion Highlight Style
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Set `ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE` to configure the style that the suggestion is shown with. The default is `fg=8`.
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### Suggestion Strategy
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Set `ZSH_AUTOSUGGEST_STRATEGY` to choose the strategy for generating suggestions. There are currently two to choose from:
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- `default`: Chooses the most recent match.
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- `match_prev_cmd`: Chooses the most recent match whose preceding history item matches the most recently executed command ([more info](src/strategies/match_prev_cmd.zsh)).
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### Widget Mapping
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This plugin works by triggering custom behavior when certain [zle widgets](http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Zle-Widgets) are invoked. You can add and remove widgets from these arrays to change the behavior of this plugin:
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- `ZSH_AUTOSUGGEST_CLEAR_WIDGETS`: Widgets in this array will clear the suggestion when invoked.
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- `ZSH_AUTOSUGGEST_ACCEPT_WIDGETS`: Widgets in this array will accept the suggestion when invoked.
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- `ZSH_AUTOSUGGEST_EXECUTE_WIDGETS`: Widgets in this array will execute the suggestion when invoked.
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- `ZSH_AUTOSUGGEST_PARTIAL_ACCEPT_WIDGETS`: Widgets in this array will partially accept the suggestion when invoked.
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Widgets not in any of these lists will update the suggestion when invoked.
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**Note:** A widget shouldn't belong to more than one of the above arrays.
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### Key Bindings
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This plugin provides three widgets that you can use with `bindkey`:
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1. `autosuggest-accept`: Accepts the current suggestion.
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2. `autosuggest-execute`: Accepts and executes the current suggestion.
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3. `autosuggest-clear`: Clears the current suggestion.
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For example, this would bind <kbd>ctrl</kbd> + <kbd>space</kbd> to accept the current suggestion.
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```sh
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bindkey '^ ' autosuggest-accept
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```
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## Troubleshooting
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If you have a problem, please search through [the list of issues on GitHub](https://github.com/zsh-users/zsh-autosuggestions/issues) to see if someone else has already reported it.
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### Reporting an Issue
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Before reporting an issue, please try temporarily disabling sections of your configuration and other plugins that may be conflicting with this plugin to isolate the problem.
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When reporting an issue, please include:
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- The smallest, simplest `.zshrc` configuration that will reproduce the problem. See [this comment](https://github.com/zsh-users/zsh-autosuggestions/issues/102#issuecomment-180944764) for a good example of what this means.
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- The version of zsh you're using (`zsh --version`)
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- Which operating system you're running
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## Uninstallation
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1. Remove the code referencing this plugin from `~/.zshrc`.
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2. Remove the git repository from your hard drive
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```sh
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rm -rf ~/.zsh/zsh-autosuggestions # Or wherever you installed
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```
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## Development
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### Build Process
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Edit the source files in `src/`. Run `make` to build `zsh-autosuggestions.zsh` from those source files.
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### Pull Requests
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Pull requests are welcome! If you send a pull request, please:
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- Match the existing coding conventions.
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- Include helpful comments to keep the barrier-to-entry low for people new to the project.
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- Write tests that cover your code as much as possible.
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### Testing
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Testing is performed with [`shunit2`](https://github.com/kward/shunit2) (v2.1.6). Documentation can be found [here](http://shunit2.googlecode.com/svn/trunk/source/2.1/doc/shunit2.html).
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The test script lives at `script/test_runner.zsh`. To run the tests, run `make test`.
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## License
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This project is licensed under [MIT license](http://opensource.org/licenses/MIT).
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For the full text of the license, see the [LICENSE](LICENSE) file.
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