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https://github.com/lihop/godot-xterm.git
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Ensure initial PTY size matches Terminal (if any)
If a PTY has a terminal_path set to a valid Terminal, then ensure that the initial cols and rows of PTY match the cols and rows of the Terminal when calling fork() or open(), otherwise PTY will output wrong-sized data for the Terminal until resized. Fixes #56.
This commit is contained in:
Leroy Hopson
parent
c3b2e1d5fa
commit
f774c903fe
4 changed files with 231 additions and 34 deletions
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@ -46,12 +46,6 @@ enum Signal {
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# The process ID.
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var _pid: int
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# The column size in characters.
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var cols: int = DEFAULT_COLS setget set_cols
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# The row size in characters.
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var rows: int = DEFAULT_ROWS setget set_rows
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# Environment to be set for the child program.
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var env := DEFAULT_ENV
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@ -71,14 +65,6 @@ var _fd: int = -1
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var _exit_cb: FuncRef
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func set_cols(value: int):
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resize(value, rows)
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func set_rows(value: int):
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resize(cols, value)
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# Writes data to the socket.
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# data: The data to write.
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func write(data) -> void:
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@ -92,13 +78,8 @@ func write(data) -> void:
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func resize(cols: int, rows: int) -> void:
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if cols <= 0 or rows <= 0 or cols == NAN or rows == NAN or cols == INF or rows == INF:
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push_error("Resizing must be done using positive cols and rows.")
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if _fd < 0:
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return
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PTYUnix.new().resize(_fd, cols, rows)
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if _fd >= 0:
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PTYUnix.new().resize(_fd, cols, rows)
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func kill(signum: int = Signal.SIGHUP) -> void:
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@ -135,8 +116,8 @@ func fork(
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file: String = OS.get_environment("SHELL"),
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args: PoolStringArray = PoolStringArray(),
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cwd = LibuvUtils.get_cwd(),
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p_cols: int = DEFAULT_COLS,
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p_rows: int = DEFAULT_ROWS,
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cols: int = DEFAULT_COLS,
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rows: int = DEFAULT_ROWS,
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uid: int = -1,
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gid: int = -1,
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utf8 = true
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@ -28,10 +28,10 @@ export(NodePath) var terminal_path := NodePath() setget set_terminal_path
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var _terminal: _Terminal = null setget _set_terminal
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# The column size in characters.
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export(int) var cols: int = DEFAULT_COLS setget set_cols
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export(int) var cols: int = DEFAULT_COLS setget set_cols, get_cols
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# The row size in characters.
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export(int) var rows: int = DEFAULT_ROWS setget set_rows
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export(int) var rows: int = DEFAULT_ROWS setget set_rows, get_rows
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# Environment to be set for the child program.
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export(Dictionary) var env := DEFAULT_ENV
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@ -41,6 +41,8 @@ export(Dictionary) var env := DEFAULT_ENV
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# former taking precedence in the case of conflicts.
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export(bool) var use_os_env := true
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var _cols := DEFAULT_COLS
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var _rows := DEFAULT_ROWS
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var _pty_native: _PTYNative
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@ -58,12 +60,25 @@ func _init():
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add_child(_pty_native)
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func _ready():
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if terminal_path and not _terminal:
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set_terminal_path(terminal_path)
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func set_cols(value: int):
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resize(value, rows)
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resize(value, _rows)
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func get_cols() -> int:
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return _cols
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func set_rows(value: int):
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resize(cols, value)
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resize(_cols, value)
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func get_rows() -> int:
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return _rows
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func set_terminal_path(value := NodePath()):
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@ -87,7 +102,7 @@ func _set_terminal(value: _Terminal):
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return
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# Connect the new terminal.
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# FIXME! resize(terminal.get_cols(), terminal.get_rows())
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resize(_terminal.cols, _terminal.rows)
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if not _terminal.is_connected("size_changed", self, "resizev"):
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_terminal.connect("size_changed", self, "resizev")
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if not _terminal.is_connected("data_sent", self, "write"):
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@ -105,13 +120,20 @@ func write(data) -> void:
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# Resizes the dimensions of the pty.
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# cols: The number of columns.
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# rows: The number of rows.
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func resize(cols, rows = null) -> void:
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_pty_native.resize(cols, rows)
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func resize(cols = _cols, rows = _rows) -> void:
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if not _valid_size(cols, rows):
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push_error("Size of cols/rows must be a positive integer.")
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return
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_cols = cols
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_rows = rows
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_pty_native.resize(_cols, _rows)
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# Same as resize() but takes a Vector2.
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func resizev(size: Vector2) -> void:
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resize(size.x, size.y)
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resize(int(size.x), int(size.y))
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# Kill the pty.
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@ -133,13 +155,17 @@ func fork(
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file: String = OS.get_environment("SHELL"),
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args: PoolStringArray = PoolStringArray(),
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cwd = _LibuvUtils.get_cwd(),
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p_cols: int = DEFAULT_COLS,
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p_rows: int = DEFAULT_ROWS,
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cols: int = _cols,
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rows: int = _rows,
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uid: int = -1,
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gid: int = -1,
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utf8 = true
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) -> int:
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return _pty_native.fork(file, args, cwd, p_cols, p_rows, uid, gid, utf8)
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resize(cols, rows) # Ensures error message is printed if cols/rows are invalid.
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if not _valid_size(cols, rows):
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return ERR_INVALID_PARAMETER
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return _pty_native.fork(file, args, cwd, _cols, _rows, uid, gid, utf8)
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func open(cols: int = DEFAULT_COLS, rows: int = DEFAULT_ROWS) -> Array:
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@ -156,3 +182,7 @@ func _on_pty_native_data_received(data):
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func _on_pty_native_exited(exit_code: int, signum: int) -> void:
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emit_signal("exited", exit_code, signum)
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static func _valid_size(cols: int, rows: int) -> bool:
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return cols > 0 and rows > 0 and cols != NAN and rows != NAN and cols != INF and rows != INF
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@ -167,6 +167,61 @@ class Helper:
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return {rows = int(size.x), cols = int(size.y)}
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class TestPTYSize:
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extends "res://addons/gut/test.gd"
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# Tests to check that psuedoterminal size (as reported by the stty command)
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# matches the size of the Terminal node. Uses various scene tree layouts with
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# Terminal and PTY nodes in different places.
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# See: https://github.com/lihop/godot-xterm/issues/56
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const PTY := preload("res://addons/godot_xterm/pty.gd")
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const Terminal := preload("res://addons/godot_xterm/terminal.gd")
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var pty: PTY
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var terminal: Terminal
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var scene: Node
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var regex := RegEx.new()
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func before_all():
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regex.compile(".*rows (?<rows>[0-9]+).*columns (?<columns>[0-9]+).*")
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func before_each():
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scene = add_child_autofree(preload("res://test/scenes/pty_and_terminal.tscn").instance())
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func test_correct_stty_reports_correct_size():
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for s in [
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"PTYChild",
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"PTYSiblingAbove",
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"PTYSiblingBelow",
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"PTYCousinAbove",
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"PTYCousinBelow",
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"PTYCousinAbove2",
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"PTYCousinBelow2"
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]:
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pty = scene.get_node(s).find_node("PTY")
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terminal = scene.get_node(s).find_node("Terminal")
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pty.call_deferred("fork", OS.get_environment("SHELL"))
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pty.call_deferred("write", "stty -a | head -n1\n")
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var output := ""
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while not "rows" in output and not "columns" in output:
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output = (yield(pty, "data_received")).get_string_from_utf8()
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var regex_match = regex.search(output)
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var stty_rows = int(regex_match.get_string("rows"))
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var stty_cols = int(regex_match.get_string("columns"))
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assert_eq(
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stty_rows,
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terminal.rows,
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"Expected stty to report correct number of rows for layout '%s'" % s
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)
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assert_eq(
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stty_cols,
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terminal.cols,
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"Expected stty to report correct number of columns for layout '%s'" % s
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)
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class LinuxHelper:
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extends Helper
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131
test/scenes/pty_and_terminal.tscn
Normal file
131
test/scenes/pty_and_terminal.tscn
Normal file
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@ -0,0 +1,131 @@
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[gd_scene load_steps=3 format=2]
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[ext_resource path="res://addons/godot_xterm/terminal.gd" type="Script" id=1]
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[ext_resource path="res://addons/godot_xterm/pty.gd" type="Script" id=2]
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[node name="PTYandTerminal" type="Node"]
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[node name="PTYChild" type="Node" parent="."]
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[node name="Terminal" type="Control" parent="PTYChild"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="PTY" type="Node" parent="PTYChild/Terminal"]
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script = ExtResource( 2 )
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terminal_path = NodePath("..")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="PTYSiblingAbove" type="Node" parent="."]
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[node name="PTY" type="Node" parent="PTYSiblingAbove"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="Terminal" type="Control" parent="PTYSiblingAbove"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="PTYSiblingBelow" type="Node" parent="."]
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[node name="Terminal" type="Control" parent="PTYSiblingBelow"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="PTY" type="Node" parent="PTYSiblingBelow"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="PTYCousinAbove" type="Node" parent="."]
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[node name="Node" type="Node" parent="PTYCousinAbove"]
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[node name="PTY" type="Node" parent="PTYCousinAbove/Node"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../../Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="Terminal" type="Control" parent="PTYCousinAbove"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="PTYCousinBelow" type="Node" parent="."]
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[node name="Terminal" type="Control" parent="PTYCousinBelow"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="Node" type="Node" parent="PTYCousinBelow"]
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[node name="PTY" type="Node" parent="PTYCousinBelow/Node"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../../Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="PTYCousinAbove2" type="Node" parent="."]
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[node name="Node" type="Node" parent="PTYCousinAbove2"]
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[node name="Node" type="Node" parent="PTYCousinAbove2/Node"]
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[node name="PTY" type="Node" parent="PTYCousinAbove2/Node/Node"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../../../Control/Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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[node name="Control" type="Control" parent="PTYCousinAbove2"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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[node name="Terminal" type="Control" parent="PTYCousinAbove2/Control"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="PTYCousinBelow2" type="Node" parent="."]
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[node name="Control" type="Control" parent="PTYCousinBelow2"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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[node name="Terminal" type="Control" parent="PTYCousinBelow2/Control"]
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anchor_right = 1.0
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anchor_bottom = 1.0
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script = ExtResource( 1 )
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[node name="Node" type="Node" parent="PTYCousinBelow2"]
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[node name="Node" type="Node" parent="PTYCousinBelow2/Node"]
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[node name="PTY" type="Node" parent="PTYCousinBelow2/Node/Node"]
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script = ExtResource( 2 )
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terminal_path = NodePath("../../../Control/Terminal")
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env = {
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"COLORTERM": "truecolor",
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"TERM": "xterm-256color"
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}
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