fisher/man/man7/fisher-plugins.md
Jorge Bucaran eae01edf51 Introducting Fisherman's official website:
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pages.

* Refactor fisher install / fisher uninstall by
extracting the logic to enable / disable plugins
into __fisher_plugin. The algorithm to enable/disable
plugins is essentially the same. The only difference
is enable, copies/symlinks files and disable removes
them from $fisher_config/.... Closes #45.

* Add support for legacy oh-my-fish! plugins using
.load initialization files. Closes #35.

* Add support for Tackle Fish framework initialization
modules. Closes #35.

* Add support for plugins that share scripts in
languages like Python or Perl. For example
oh-my-fish/plugin-vi-mode assumes there is a
vi-mode-impl.py file in the same path of the running
script. This opens the door for including code
snippets in other languages.

* Any files inside a share directory, except for *.md
or *.fish files, are copied to $fisher_config/functions.
This allows you to run legacy plugins that retrieve
the currently running script path with (dirname
(status -f)) out of the box.

* A cleaner alternative is using the new $fisher_share
variable like this: python
$fisher_share/my_plugin_script.py.

* $fisher_share points to $fisher_config/share by
default, but you may change this in your user
config.fish. This path contains copies (or symbolic
links) to the same script files copied to
$fisher_config/functions.

* Introduce the $fisher_share_extensions variable to
let you customize what extensions Fisherman is aware
of. Only extensions in this array will be processed
during the install process. The default is py rb php
pl awk sed.

* .fish and .md extensions are always ignored.

* Remove ad-hoc debug d function created by mistake
in the Fisherman config.fish file. Closes #34.

* Remove almost useless fisher --alias. You can still
create aliases using $fisher_alias. It's difficult
to add auto-complete to this feature, and even if
we do so, it is slow.

* Fix bug introduced in the previous release caused
by swapping the lines that calculate the index of
the current plugin being installed/updated/uninstalled
and the line that displays the value, causing the
CLI to show incorrect values. Closes #36. Thanks
@kballard

* Add cache, enabled and disabled options to fisher
--list. Now you can type fisher -l enabled to get a
list of what plugins are currently enabled.

* Add new $fisher_plugins universal variable to keep
track of what plugins are enabled / disabled.

* Update completions after a plugin is installed,
updated or uninstalled.

* Improve autocomplete speed by removing the descriptions
from plugins installed with custom URLs.

* fisher --list displays nothing and returns 1 when
there are no plugins installed. Closes #38.

* fisher uninstall does not attempt to uninstall plugins
already disabled by looking at the $fisher_plugins
array. --force will bypass this. Closes #40
2016-01-12 05:00:34 +09:00

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Markdown

fisher-plugins(7) -- Creating Fisherman Plugins
===============================================
## DESCRIPTION
This document describes how to create Fisherman plugins. This includes stand-alone utilities, prompts, extension commands and configuration plugins.
There is no technical distinction between any of the terms aforementioned, but there is a *conceptual* difference.
## DEFINITIONS
* `Standalone Utilities`: Plugins that define one or more functions, meant to be used at the command line.
* `Prompts / Themes`: Plugins that modify the appearance of the fish prompt by defining a `fish_prompt` and / or `fish_right_prompt` functions.
* `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.
* `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.
The following tree is that of a plugin that displays the characteristics of all the plugins described above.
```
my_plugin
|-- fisher_my_plugin.fish
|-- my_plugin.fish
|-- fish_prompt.fish
|-- fish_right_prompt.fish
|-- my_plugin.config.fish
|-- functions/
| |-- my_plugin_helper.fish
|-- completions/
| |-- my_plugin.fish
|-- man/
|-- man1/
|-- my_plugin.1
```
Plugins may list any number of dependencies to other plugins using a *fishfile*, see `fisher help fishfile`.
Plugins may also define completions using `complete(1)` and provide documentation in the form of `man(1)` pages.
## EXAMPLE
This section walks you through creating *wtc*, a stand-alone plugin based in *github.com/ngerakines/commitment* random commit message generator.
* Navigate to your preferred workspace and create the plugin's directory and Git repository:
```
mkdir -p my/workspace/wtc; and cd my/workspace/wtc
git init
git remote add origin https://github.com/<owner>/wtc
```
* Add the implementation.
```
cat > wtc.fish
function wtc -d "Generate a random commit message"
switch "$argv"
case -h --help
printf "usage: wtc [--help]\n\n"
printf " -h --help Show usage help\n"
return
end
curl -s whatthecommit.com/index.txt
end
^C
```
* Add completions. *wtc* is simple enough that you could get away without `__fisher_parse_help`, but more complex utilities, or utilities whose CLI evolves over time, can benefit using automatic completion generation. Note that in order to use `__fisher_parse_help`, your command must provide a `--help` option that prints usage information to standard output.
```
mkdir completions
cat > completions/wtc.fish
set -l IFS ";"
wtc --help | __fisher_parse_help | while read -l info long short
complete -c wtc -s "$short" -l "$long" -d "$info"
end
^C
```
* Add basic documentation. Fisherman uses standard manual pages for displaying help information. There are utilities that can help you generate man pages from other text formats, such as Markdown. One example is `ronn(1)`. For this example, type will do:
```
mkdir -p man/man1
cat > man/man1/wtc.1
.TH man 1 "Today" "1.0" "wtc man page"
.SH NAME
wtc \- Generate a random commit message
.SH SYNOPSIS
wtc [--help]
.SH OPTIONS
-h, --help: Display help information.
.SH SEE ALSO
https://github.com/ngerakines/commitment
^C
```
* Commit changes and push to the remote repository.
```
git add --all
git commit -m "What the commit? 1.0"
git push origin master
```
* Install with Fisherman. If you would like to submit your package for registration install the `submit` plugin or send a pull request to the main index repository in *https://github.com/fisherman/index*. See `Index` in `fisher help tour`.
```
fisher install github/*owner*/wtc
wtc
(\ /)
(O.o)
(> <) Bunny approves these changes.
```
## SEE ALSO
man(1)<br>
complete(1)<br>
fisher help commands<br>
fisher help fishfile<br>