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116 lines
4.3 KiB
Markdown
116 lines
4.3 KiB
Markdown
fisher-faq(7) -- Frequently Asked Questions
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## SYNOPSIS
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This document attempts to answer some of Fisherman most frequently asked questions. Feel free to create a new issue in the Fisherman issue tracker if your question is not answered here.
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### What is Fisherman?
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Fisherman is a plugin manager for fish that lets you share and reuse code, prompts and configurations easily.
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### What do I need to know to use Fisherman?
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Nothing. You can continue using your shell as usual. When you are ready to learn more just type `fisher help` or `fisher help tour`.
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### How do I access the documentation?
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Fisherman documentation is based in UNIX `man(1)` pages. For basic usage and command enter `fisher help`. For help about a specific *command*, enter `fisher help <command>`. The following guides are also available:
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fisher help `faq`: Fisherman FAQ<br>
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fisher help `tour`: Fisherman Tour<br>
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fisher help `config`: Fisherman Configuration<br>
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fisher help `plugins`: Creating Fisherman Plugins<br>
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fisher help `commands`: Creating Fisherman Commands<br>
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fisher help `fishfile`: Fishfile Format<br>
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### What are Fisherman plugins?
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Plugins are written in fish and extend the shell core functionality, run initialization code, add completions or documentations to other commands, etc. See `fisher help plugins`.
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Plugins may list any number of dependencies to other plugins using a *fishfile*.
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### What is a Fishfile?
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A plain text file that lists what plugins you have installed or a plugin's dependencies to other plugins.
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Fishfiles let you share plugin configurations across multiple installations, allow plugins to declare dependencies, and prevent information loss in case of system failure. See also `fisher help fishfile`.
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### What kind of Fisherman plugins are there?
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There is no technical distinction between plugins, themes, commands, etc., but there is a *conceptual* difference.
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* `Standalone Utilities`: Plugins that define one or more functions, meant to be used at the command line.
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* `Prompts / Themes`: Plugins that modify the appearance of the fish prompt by defining a `fish_prompt` and / or `fish_right_prompt` functions.
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* `Extension Commands`: Plugins that extend Fisherman default commands. An extension plugin must define one or more functions like `fisher_<my_command>`. For specific information about commands, see `fisher help commands` and then return to this guide.
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* `Configuration Plugins`: Plugins that include one or more `my_plugin.config.fish` files. Files that follow this convention are evaluated at the start of the session.
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See `fisher help plugins` and `fisher help commands`.
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### Does Fisherman support Oh My Fish plugins and themes?
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Yes. To install either a plugin or theme use their URL:
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```
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fisher install omf/plugin-{rbenv,tab} omf/theme-scorphish
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```
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You can use the same mechanism to install any valid plugin from any given URL. See also `Compatibility` in `fisher help tour`.
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### What does Fisherman do exactly every time I create a new shell session?
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Essentially, add Fisherman functions and completions to the `$fish_{function,complete}_path` and evaluate files that follow the convention `*.config.fish`.
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```fish
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set fish_function_path {$fisher_config,$fisher_home}/functions $fish_function_path
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set fish_complete_path {$fisher_config,$fisher_home}/completions $fish_complete_path
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for file in $fisher_config/conf.d/*.config.fish
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source $file
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end
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```
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See `$fisher_home/config.fish` for the full code.
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### How is Fisherman faster than Oh My Fish and other systems?
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Fisherman ameliorates the slow shell start problem using a flat dependency tree instead of loading a directory hierarchy per plugin. This also means that Fisherman performance does not decline depending on the number of plugins installed. See also `Flat Tree` in `fisher help tour`.
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### How can I upgrade from an existing Oh My Fish or Wahoo installation?
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Remove the `$OMF_PATH` and `$OMF_CONFIG` variables from your `config.fish`.
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Backup dotfiles and other sensitive data.
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```fish
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rm -rf {$OMF_PATH,$OMF_CONFIG}
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```
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Install Fisherman.
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```
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curl -sL install.fisherman.sh | fish
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```
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### How do I use fish as my default shell?
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Add Fish to `/etc/shells`:
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```sh
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echo "/usr/local/bin/fish" | sudo tee -a /etc/shells
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```
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Make Fish your default shell:
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```sh
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chsh -s /usr/local/bin/fish
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```
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To switch back to another shell.
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```sh
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chsh -s /bin/another/shell
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```
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