better top

[micro.git] / runtime / help / plugins.md

diff --git a/runtime/help/plugins.md b/runtime/help/plugins.md
index 6c431068542fd888fb18b127d6230e1b440cb949..8c8b3a5090296cd610f1af7a39db3a95a106c341 100644 (file)
--- a/runtime/help/plugins.md
+++ b/runtime/help/plugins.md
@@ -97,8 +97,8 @@ function onSave(bp)
 end
 ```
 
 end
 ```
 

-The `bp` variable is a reference to the bufpane the action is being executed within.
-This is almost always the current bufpane.
+The `bp` variable is a reference to the bufpane the action is being executed
+within.  This is almost always the current bufpane.

 
 All available actions are listed in the keybindings section of the help.
 
 
 All available actions are listed in the keybindings section of the help.
 


@@ -112,8 +112,8 @@ function onMousePress(view, event)
 end
 ```
 
 end
 ```
 

-These functions should also return a boolean specifying whether the bufpane should
-be relocated to the cursor or not after the action is complete.
+These functions should also return a boolean specifying whether the bufpane
+should be relocated to the cursor or not after the action is complete.

 
 ## Accessing micro functions
 
 
 ## Accessing micro functions
 


@@ -129,76 +129,205 @@ micro.Log("Hello")
 The packages and functions are listed below (in Go type signatures):
 
 * `micro`
 The packages and functions are listed below (in Go type signatures):
 
 * `micro`

-    - `TermMessage(msg interface{}...)`
-    - `TermError()`
-    - `InfoBar()`
-    - `Log(msg interface{}...)`
-    - `SetStatusInfoFn(fn string)`
+    - `TermMessage(msg interface{}...)`: temporarily close micro and print a
+       message
+
+    - `TermError(filename string, lineNum int, err string)`: temporarily close
+       micro and print an error formatted as `filename, lineNum: err`.
+
+    - `InfoBar()`: return the infobar BufPane object.
+
+    - `Log(msg interface{}...)`: write a message to `log.txt` (requires
+       `-debug` flag, or binary built with `build-dbg`).
+
+    - `SetStatusInfoFn(fn string)`: register the given lua function as
+       accessible from the statusline formatting options

 * `micro/config`
 * `micro/config`

-    - `MakeCommand`
-    - `FileComplete`
-    - `HelpComplete`
-    - `OptionComplete`
-    - `OptionValueComplete`
-    - `NoComplete`
-    - `TryBindKey`
-    - `Reload`
-    - `AddRuntimeFilesFromDirectory`
-    - `AddRuntimeFileFromMemory`
-    - `AddRuntimeFile`
-    - `ListRuntimeFiles`
-    - `ReadRuntimeFile`
-    - `RTColorscheme`
-    - `RTSyntax`
-    - `RTHelp`
-    - `RTPlugin`
-    - `RegisterCommonOption`
-    - `RegisterGlobalOption`
+       - `MakeCommand(name string, action func(bp *BufPane, args[]string),
+                   completer buffer.Completer)`:
+       create a command with the given name, and lua callback function when
+       the command is run. A completer may also be given to specify how
+       autocompletion should work with the custom command.
+
+       - `FileComplete`: autocomplete using files in the current directory
+       - `HelpComplete`: autocomplete using names of help documents
+       - `OptionComplete`: autocomplete using names of options
+       - `OptionValueComplete`: autocomplete using names of options, and valid
+       values afterwards
+       - `NoComplete`: no autocompletion suggestions
+
+       - `TryBindKey(k, v string, overwrite bool) (bool, error)`: bind the key
+       `k` to the string `v` in the `bindings.json` file.  If `overwrite` is
+       true, this will overwrite any existing binding to key `k`. Returns true
+       if the binding was made, and a possible error (for example writing to
+       `bindings.json` can cause an error).
+
+       - `Reload()`: reload configuration files.
+
+       - `AddRuntimeFileFromMemory(filetype RTFiletype, filename, data string)`:
+       add a runtime file to the `filetype` runtime filetype, with name
+       `filename` and data `data`.
+
+       - `AddRuntimeFilesFromDirectory(plugin string, filetype RTFiletype,
+                                    directory, pattern string)`:
+       add runtime files for the given plugin with the given RTFiletype from
+       a directory within the plugin root. Only adds files that match the
+       pattern using Go's `filepath.Match`
+
+       - `AddRuntimeFile(plugin string, filetype RTFiletype, filepath string)`:
+       add a given file inside the plugin root directory as a runtime file
+       to the given RTFiletype category.
+
+       - `ListRuntimeFiles(fileType RTFiletype) []string`: returns a list of
+       names of runtime files of the given type.
+
+       - `ReadRuntimeFile(fileType RTFiletype, name string) string`: returns the
+       contents of a given runtime file.
+
+       - `NewRTFiletype() int`: creates a new RTFiletype, and returns its value.
+
+       - `RTColorscheme`: runtime files for colorschemes.
+       - `RTSyntax`: runtime files for syntax files.
+       - `RTHelp`: runtime files for help documents.
+       - `RTPlugin`: runtime files for plugin source code.
+
+       - `RegisterCommonOption(pl string, name string, defaultvalue interface{})`:
+       registers a new option with for the given plugin. The name of the
+       option will be `pl.name`, and will have the given default value. Since
+       this registers a common option, the option will be modifiable on a
+       per-buffer basis, while also having a global value (in the
+       GlobalSettings map).
+
+       - `RegisterGlobalOption(pl string, name string, defaultvalue interface{})`:
+       same as `RegisterCommonOption` but the option cannot be modified
+       locally to each buffer.
+
+       - `GetGlobalOption(name string) interface{}`: returns the value of a
+       given plugin in the `GlobalSettings` map.
+
+       - `SetGlobalOption(option, value string) error`: sets an option to a
+       given value. Same as using the `> set` command. This will parse the
+       value to the actual value type.
+
+       - `SetGlobalOptionNative(option string, value interface{}) error`: sets
+       an option to a given value, where the type of value is the actual
+       type of the value internally.

 * `micro/shell`
 * `micro/shell`

-    - `ExecCommand`
-    - `RunCommand`
-    - `RunBackgroundShell`
-    - `RunInteractiveShell`
-    - `JobStart`
-    - `JobSpawn`
-    - `JobStop`
-    - `JobStop`
-    - `RunTermEmulator`
-    - `TermEmuSupported`
+       - `ExecCommand(name string, arg ...string) (string, error)`: runs an
+       executable with the given arguments, and pipes the output (stderr
+       and stdout) of the executable to an internal buffer, which is
+       returned as a string, along with a possible error.
+
+       - `RunCommand(input string) (string, error)`: same as `ExecCommand`,
+       except this uses micro's argument parser to parse the arguments from
+       the input. For example `cat 'hello world.txt' file.txt`, will pass
+       two arguments in the `ExecCommand` argument list (quoting arguments
+       will preserve spaces).
+
+       - `RunBackgroundShell(input string) (func() string, error)`: returns a
+       function that will run the given shell command and return its output.
+
+       - `RunInteractiveShell(input string, wait bool, getOutput bool)
+                          (string, error)`:
+       temporarily closes micro and runs the given command in the terminal.
+       If `wait` is true, micro will wait for the user to press enter before
+       returning to text editing. If `getOutput` is true, micro redirect
+       stdout from the command to the returned string.
+
+       - `JobStart(cmd string, onStdout, onStderr,
+                onExit func(string, []interface{}), userargs ...interface{})
+                *exec.Cmd`:
+       Starts a background job by running the shell on the given command
+       (using `sh -c`). Three callbacks can be provided which will be called
+       when the command generates stdout, stderr, or exits. The userargs will
+       be passed to the callbacks, along with the output as the first
+       argument of the callback.
+
+       - `JobSpawn(cmd string, cmdArgs []string, onStdout, onStderr,
+                onExit func(string, []interface{}), userargs ...interface{})
+                *exec.Cmd`:
+       same as `JobStart`, except doesn't run the command through the shell
+       and instead takes as inputs the list of arguments.
+
+       - `JobStop(cmd *exec.Cmd)`: kills a job.
+       - `JobSend(cmd *exec.Cmd, data string)`: sends some data to a job's stdin.
+
+       - `RunTermEmulator(h *BufPane, input string, wait bool, getOutput bool,
+                       callback func(out string, userargs []interface{}),
+                       userargs []interface{}) error`:
+       starts a terminal emulator from a given BufPane with the input command.
+       If `wait` is true it will wait for the user to exit by pressing enter
+       once the executable has terminated and if `getOutput` is true it will
+       redirect the stdout of the process to a pipe which will be passed to
+       the callback which is a function that takes a string and a list of
+       optional user arguments. This function returns an error on systems
+       where the terminal emulator is not supported.
+
+       - `TermEmuSupported`: true on systems where the terminal emulator is
+       supported and false otherwise. Supported systems:
+        * Linux
+        * MacOS
+        * Dragonfly
+        * OpenBSD
+        * FreeBSD
+

 * `micro/buffer`
 * `micro/buffer`

-    - `NewMessage`
-    - `NewMessageAtLine`
-    - `MTInfo`
-    - `MTWarning`
-    - `MTError`
-    - `Loc`
-    - `BTDefault`
-    - `BTLog`
-    - `BTRaw`
-    - `BTInfo`
-    - `NewBufferFromFile`
-    - `ByteOffset`
-    - `Log`
-    - `LogBuf`
-* `micro/util`
-    - `RuneAt`
-    - `GetLeadingWhitespace`
-    - `IsWordChar`
+    - `NewMessage(owner string, msg string, start, end, Loc, kind MsgType)
+                  *Message`:
+       creates a new message with an owner over a range given by the start
+       and end locations.
+
+    - `NewMessageAtLine(owner string, msg string, line int, kindMsgType)
+                        *Message`:
+       creates a new message with owner, type and message at a given line.
+
+    - `MTInfo`: info message.
+    - `MTWarning`: warning message.
+    - `MTError` error message.
+
+    - `Loc(x, y int) Loc`: creates a new location struct.

 
 

+    - `BTDefault`: default buffer type.
+    - `BTLog`: log buffer type.
+    - `BTRaw`: raw buffer type.
+    - `BTInfo`: info buffer type.
+
+    - `NewBuffer(text, path string) *Buffer`: creates a new buffer with the
+       given text at a certain path.
+
+    - `NewBufferFromFile(path string) (*Buffer, error)`: creates a new
+       buffer by reading from disk at the given path.
+
+    - `ByteOffset(pos Loc, buf *Buffer) int`: returns the byte index of the
+       given position in a buffer.
+
+    - `Log(s string)`: writes a string to the log buffer.
+    - `LogBuf() *Buffer`: returns the log buffer.
+* `micro/util`
+    - `RuneAt(str string, idx int) string`: returns the utf8 rune at a
+       given index within a string.
+    - `GetLeadingWhitespace(s string) string`: returns the leading
+       whitespace of a string.
+    - `IsWordChar(s string) bool`: returns true if the first rune in a
+       string is a word character.
+    - `String(b []byte) string`: converts a byte array to a string.
+    - `RuneStr(r rune) string`: converts a rune to a string.

 
 This may seem like a small list of available functions but some of the objects
 returned by the functions have many methods. The Lua plugin may access any
 
 This may seem like a small list of available functions but some of the objects
 returned by the functions have many methods. The Lua plugin may access any

-public methods of an object returned by any of the functions above. Unfortunately
-it is not possible to list all the available functions on this page. Please
-go to the internal documentation at https://godoc.org/github.com/zyedidia/micro
-to see the full list of available methods. Note that only methods of types that
-are available to plugins via the functions above can be called from a plugin.
-For an even more detailed reference see the source code on Github.
+public methods of an object returned by any of the functions above.
+Unfortunately it is not possible to list all the available functions on this
+page. Please go to the internal documentation at
+https://godoc.org/github.com/zyedidia/micro to see the full list of available
+methods. Note that only methods of types that are available to plugins via
+the functions above can be called from a plugin.  For an even more detailed
+reference see the source code on Github.

 
 

-For example, with a BufPane object called `bp`, you could call the `Save` function
-in Lua with `bp:Save()`.
+For example, with a BufPane object called `bp`, you could call the `Save`
+function in Lua with `bp:Save()`.

 
 

-Note that Lua uses the `:` syntax to call a function rather than Go's `.` syntax.
+Note that Lua uses the `:` syntax to call a function rather than Go's `.`
+syntax.

 
 ```go
 micro.InfoBar().Message()
 
 ```go
 micro.InfoBar().Message()


@@ -265,7 +394,8 @@ to plugins though it is rather small.
 
 ## Adding help files, syntax files, or colorschemes in your plugin
 
 
 ## Adding help files, syntax files, or colorschemes in your plugin
 

-You can use the `AddRuntimeFile(name string, type config.RTFiletype, path string)`
+You can use the `AddRuntimeFile(name string, type config.RTFiletype,
+                                path string)`

 function to add various kinds of files to your plugin. For example, if you'd
 like to add a help topic to your plugin called `test`, you would create a
 `test.md` file, and call the function:
 function to add various kinds of files to your plugin. For example, if you'd
 like to add a help topic to your plugin called `test`, you would create a
 `test.md` file, and call the function:


@@ -295,17 +425,51 @@ There are 6 default plugins that come pre-installed with micro. These are
 * `status`: provides some extensions to the status line (integration with
    Git and more).
 
 * `status`: provides some extensions to the status line (integration with
    Git and more).
 

+See `> help linter`, `> help comment`, and `> help status` for additional
+documentation specific to those plugins.
+

 These are good examples for many use-cases if you are looking to write
 your own plugins.
 
 ## Plugin Manager
 
 These are good examples for many use-cases if you are looking to write
 your own plugins.
 
 ## Plugin Manager
 

-Micro's plugin manager is you! Ultimately the plugins that are created
-for micro are quite simple and don't require a complex automated tool
-to manage them. They should be "git cloned" or somehow placed in the
-`~/.config/micro/plug` directory, and that is all that's necessary
-for installation. In the rare case that a more complex installation
-process is needed (such as dependencies, or additional setup) the
-plugin creator should provide the additional instructions on their
-website and point to the link using the `install` field in the `info.json`
-file.
+Micro also has a built in plugin manager which you can invoke with the
+`> plugin ...` command, or in the shell with `micro -plugin ...`.
+
+For the valid commands you can use, see the `command` help topic.
+
+The manager fetches plugins from the channels (which is simply a list of plugin
+metadata) which it knows about. By default, micro only knows about the official
+channel which is located at github.com/micro-editor/plugin-channel but you can
+add your own third-party channels using the `pluginchannels` option and you can
+directly link third-party plugins to allow installation through the plugin
+manager with the `pluginrepos` option.
+
+If you'd like to publish a plugin you've made as an official plugin, you should
+upload your plugin online (to Github preferably) and add a `repo.json` file.
+This file will contain the metadata for your plugin. Here is an example:
+
+```json
+[{
+  "Name": "pluginname",
+  "Description": "Here is a nice concise description of my plugin",
+  "Website": "https://github.com/user/plugin",
+  "Tags": ["python", "linting"],
+  "Versions": [
+    {
+      "Version": "1.0.0",
+      "Url": "https://github.com/user/plugin/archive/v1.0.0.zip",
+      "Require": {
+        "micro": ">=1.0.3"
+      }
+    }
+  ]
+}]
+```
+
+Then open a pull request at github.com/micro-editor/plugin-channel adding a
+link to the raw `repo.json` that is in your plugin repository.
+
+To make updating the plugin work, the first line of your plugins lua code
+should contain the version of the plugin. (Like this: `VERSION = "1.0.0"`)
+Please make sure to use [semver](http://semver.org/) for versioning.