mirror of
https://github.com/lihop/godot-xterm.git
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191 lines
7.6 KiB
Markdown
191 lines
7.6 KiB
Markdown
# PTY
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**Inherits:** {{Node}} < {{Object}}
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_Linux and macOS only._
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Node for forking processes (e.g. bash, nodejs, python) with pseudoterminal file descriptors.
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Can be used with the {{Terminal}} node to get an actual shell.
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:::{note}
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Not currently supported on Windows, but it could be in the future using [ConPTY](https://docs.microsoft.com/en-us/windows/console) or [WinPTY](https://github.com/rprichard/winpty).
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See issue [\#25](https://github.com/lihop/godot-xterm/issues/25).
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:::
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## Overview
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<sub>"PTY Diagram" is a derivative of [Termios-script-diagram.svg](https://commons.wikimedia.org/wiki/File:Termios-script-diagram.svg) by [Krishnavedala](https://en.wikipedia.org/wiki/User:Krishnavedala?rdfrom=commons:User:Krishnavedala), used under [CC0](https://creativecommons.org/share-your-work/public-domain/cc0/).
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## Properties
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| Type | Name | Default |
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| -------------- | ------------------------------------ | ------------------------------------------------------ |
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| {{NodePath}} | [terminal_path](#prop-terminal_path) | None |
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| {{int}} | [cols](#prop-cols) | 80 |
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| {{int}} | [rows](#prop-rows) | 24 |
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| {{Dictionary}} | [env](#prop-env) | `{ COLORTERM = "truecolor", TERM = "xterm-256color" }` |
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| {{bool}} | [use_os_env](#prop-use_os_env) | true |
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## Methods
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| Returns | Signature |
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| --------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
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| {{Error}} | [fork](#mthd-fork) **(** {{String}} file=$SHELL, {{PoolStringArray}} args=[ ], {{String}} cwd=$PWD, {{int}} cols=80, {{int}} rows=24 **)** |
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| void | [kill](#mthd-kill) **(** {{int}} signum=1 **)** |
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| {{Error}} | [open](#mthd-open) **(** {{int}} cols=80, {{int}} rows=24 **)** |
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| void | [resize](#mthd-resize) **(** {{int}} cols, {{int}} rows **)** |
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| void | [resizev](#mthd-resizev) **(** {{Vector2}} size **)** |
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| void | [write](#mthd-write) **(** {{String}}\|{{PoolByteArray}} data **)** |
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## Signals
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<hr id="sgnl-data_received" />
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**data_received** **(** {{PoolByteArray}} data **)**
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Emitted when data is read from the pseudoterminal master device.
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<hr id="sgnl-exited" />
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**exited** **(** {{int}} exit_code, {{int}} signum **)**
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Emitted when the child program exits. `exit_code` is the exit status of the child program and `signum` is the number of the signal that terminated the child program.
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<hr/>
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## Enumerations
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<hr id="enum-signal" />
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enum **Signal**:
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- **SIGHUP** = 1 --- Hangup.
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- **SIGINT** = 2 --- Terminal interrupt signal.
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- **SIGQUIT** = 3 --- Terminal quit signal.
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- **SIGILL** = 4 --- Illegal instruction.
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- **SIGTRAP** = 5 --- Trace/breakpoint trap.
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- **SIGABRT** = 6 --- Process abort signal.
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- **SIGFPE** = 8 --- Erroneous arithmetic operation.
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- **SIGKILL** = 9 --- Kill (cannot be caught or ignored).
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- **SIGSEGV** = 11 --- Invalid memory reference.
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- **SIGPIPE** = 13 --- Write on a pipe with no one to read it.
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- **SIGALRM** = 14 --- Alarm clock.
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- **SIGTERM** = 15 --- Termination signal.
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</hr>
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## Property Descriptions
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<hr id="prop-terminal_path" />
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{{NodePath}} **terminal_path**
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| --------- | --------------------------------------------- |
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| _Default_ | None |
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| _Setter_ | void set_terminal_path ( {{NodePath}} value ) |
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| _Getter_ | None |
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{{NodePath}} to a {{Terminal}}. Setting this path will automatically connect the appropriate signals of both nodes for standard operation. It will also disconnected the signals of the previously set terminal, if any.
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<hr id="prop-cols" />
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{{int}} **cols**
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| --------- | ------------------------------- |
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| _Default_ | 80 |
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| _Setter_ | void set_cols ( {{int}} value ) |
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| _Getter_ | None |
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The column size in characters.
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<hr id="prop-rows" />
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{{int}} **rows**
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| --------- | ------------------------------- |
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| _Default_ | 24 |
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| _Setter_ | void set_rows ( {{int}} value ) |
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| _Getter_ | None |
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The row size in characters.
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<hr id="prop-env" />
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{{Dictionary}} **env**
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| --------- | ------------------------------------------------------ |
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| _Default_ | `{ COLORTERM = "truecolor", TERM = "xterm-256color" }` |
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| _Setter_ | None |
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| _Getter_ | None |
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Environment variables to be set for the child program.
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<hr id="prop-use_os_env" />
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{{bool}} **use_os_env**
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| --------- | ---- |
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| _Default_ | true |
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| _Setter_ | None |
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| _Getter_ | None |
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If `true` the environment variables from `env` will be merged with the environment variables of the current program (i.e. Godot), with the variables from `env` taking precedence over the environment variables of the current program.
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</hr>
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## Method Descriptions
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<hr id="mthd-fork" />
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{{Error}} **fork** **(** {{String}} file=$SHELL, {{PoolStringArray}} args=[ ], {{String}} cwd=$PWD, {{int}} cols=80, {{int}} rows=24 **)**
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Opens a pseudoterminal and starts a new process using the program specified by `file`.
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`file` defaults to the value of the `SHELL` environment variable, falling back to `sh`.
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The arguments specified in `args` are passed to the program.
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`cwd` is the directory in which the program will be executed. Defaults to the working directory of the current program (typically the project directory, when running from editor).
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`cols` is the initial number of columns and `rows` is the initial number of rows.
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Returns {{OK}} if successful.
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:::{seealso}
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Godot's {{ '[OS.execute()]({}/classes/class_os.html#class-os-method-execute)'.format(godot_docs) }} method.
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:::
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<hr id="mthd-kill" />
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void **kill** **(** {{int}} signum=1 **)**
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Sends the specified signal (`signum`) to the PTY's child process, if any. Defaults to `1` (`SIGHUP`).
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:::{seealso}
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Godot's {{ '[OS.kill()]({}/classes/class_os.html#class-os-method-kill)'.format(godot_docs) }} method.
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:::
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<hr id="mthd-open" />
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{{Error}} **open** **(** {{int}} cols=80, {{int}} rows=24 **)**
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Opens a pseudoterminal but does not start any process. Returns {{OK}} if successful.
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<hr id="mthd-resize" />
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void **resize** **(** {{int}} cols, {{int}} rows **)**
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Resizes the dimensions of the pseudoterminal.
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<hr id="mthd-resizev" />
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void **resizev** **(** {{Vector2}} size **)**
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Same as resize, but accepts a {{Vector2}} where `x` is cols and `y` is rows.
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<hr id="mthd-write" />
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void **write** **(** {{String}}\|{{PoolByteArray}} data **)**
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Writes data to the pseudoterminal master device.
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