jesseduffield.lazygit/pkg/gocui
Stefan Haller 06d2450459 Stop leaking other malformed and unimplemented escape sequences
After the previous commit, the escape interpreter still had five paths
that returned an error from parseOne, which view.go handles by rendering
whatever bytes it had accumulated as literal cells. Each of these is a
case where silently consuming the sequence is strictly better than
leaking garbage.

- ';' as the first CSI byte: '\x1b[;5H' is a valid sequence (row
  defaults to 1) but we errored on the leading ';'.
- Intermediate bytes in CSI ('\x1b[0 q' = DECSCUSR): the sequence ends
  in a final byte we don't implement, so consume and drop.
- Malformed SGR params (empty slot like '\x1b[1;;m'): if outputCSI
  fails mid-parse, reset state instead of re-emitting the sequence.
- OSC 8 that isn't actually OSC 8 ('\x1b]8x...'): treat as an OSC we
  don't understand and skip to its terminator rather than error-
  resetting mid-sequence, which used to leave the rest of the OSC body
  to be printed as text.
- The sanity-check overflow paths (too many params, param too long)
  now switch to a 'discard until final byte' state rather than
  returning the accumulated bytes.

A new stateCSIDiscard centralizes the 'consume bytes until the CSI
final' behavior used by both the intermediate-byte and overflow paths.
errCSITooLong and errOSCParseError are gone with their only callers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-30 09:20:15 +02:00
..
attribute.go Bump tcell dependency to v3 2026-04-30 22:14:26 +02:00
AUTHORS Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
CHANGES_tcell.md Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
CODE_OF_CONDUCT.md Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
CONTRIBUTING.md Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
doc.go Remove dead Modifier field from keybindings 2026-05-06 09:51:23 +02:00
edit.go Convert keybinding fields to Keybinding 2026-05-25 15:32:47 +02:00
escape.go Stop leaking other malformed and unimplemented escape sequences 2026-06-30 09:20:15 +02:00
escape_test.go Stop leaking other malformed and unimplemented escape sequences 2026-06-30 09:20:15 +02:00
flush_test.go When drawing tainted views in ForceFlushViewsContentOnly, also draw views that overlap them 2026-05-09 13:58:33 +02:00
gui.go Let integration tests post a focus event 2026-06-23 14:15:18 +02:00
gui_others.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
gui_windows.go Fix linter warnings 2026-04-30 14:29:08 +02:00
key.go Move modifiers into Key 2026-04-30 22:22:53 +02:00
keybinding.go Remove dead Modifier field from keybindings 2026-05-06 09:51:23 +02:00
LICENSE Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
README.md Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
scrollbar.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
scrollbar_test.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
task.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
task_manager.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
tcell_driver.go Let integration tests post a focus event 2026-06-23 14:15:18 +02:00
text_area.go Add a forwardDeleteWord keybinding 2026-04-30 22:31:44 +02:00
text_area_test.go Fix linter warnings 2026-04-30 14:29:08 +02:00
view.go Extend the fill background to wrapped tail segments 2026-06-18 17:22:31 +02:00
view_test.go Extend the fill background to wrapped tail segments 2026-06-18 17:22:31 +02:00

GOCUI - Go Console User Interface

CircleCI CodeCov Go Report Card GolangCI GoDoc GitHub tag (latest SemVer)

Minimalist Go package aimed at creating Console User Interfaces. A community fork based on the amazing work of jroimartin

Features

  • Minimalist API.
  • Views (the "windows" in the GUI) implement the interface io.ReadWriter.
  • Support for overlapping views.
  • The GUI can be modified at runtime (concurrent-safe).
  • Global and view-level keybindings.
  • Mouse support.
  • Colored text.
  • Customizable editing mode.
  • Easy to build reusable widgets, complex layouts...

About fork

This fork has many improvements over the original work from jroimartin.

  • Written ontop of TCell
  • Better wide character support
  • Support for 1 Line height views
  • Better support for running in docker container
  • Customize frame colors
  • Improved code comments and quality
  • Many small improvements
  • Change Visibility of views

For information about this org see: awesome-gocui/about.

Installation

Execute:

$ go get github.com/awesome-gocui/gocui

Documentation

Execute:

$ go doc github.com/awesome-gocui/gocui

Or visit godoc.org to read it online.

Example

See the _example folder for more examples

package main

import (
	"fmt"
	"log"

	"github.com/awesome-gocui/gocui"
)

func main() {
	g, err := gocui.NewGui(gocui.OutputNormal, true)
	if err != nil {
		log.Panicln(err)
	}
	defer g.Close()

	g.SetManagerFunc(layout)

	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
		log.Panicln(err)
	}

	if err := g.MainLoop(); err != nil && !gocui.IsQuit(err) {
		log.Panicln(err)
	}
}

func layout(g *gocui.Gui) error {
	maxX, maxY := g.Size()
	if v, err := g.SetView("hello", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2, 0); err != nil {
		if !gocui.IsUnknownView(err) {
			return err
		}

		if _, err := g.SetCurrentView("hello"); err != nil {
			return err
		}

		fmt.Fprintln(v, "Hello world!")
	}

	return nil
}

func quit(g *gocui.Gui, v *gocui.View) error {
	return gocui.ErrQuit
}

Screenshots

r2cui

_examples/demo.go

_examples/dynamic.go

Projects using gocui

  • komanda-cli: IRC Client For Developers.
  • vuls: Agentless vulnerability scanner for Linux/FreeBSD.
  • wuzz: Interactive cli tool for HTTP inspection.
  • httplab: Interactive web server.
  • domainr: Tool that checks the availability of domains based on keywords.
  • gotime: Time tracker for projects and tasks.
  • claws: Interactive command line client for testing websockets.
  • terminews: Terminal based RSS reader.
  • diagram: Tool to convert ascii arts into hand drawn diagrams.
  • pody: CLI app to manage Pods in a Kubernetes cluster.
  • kubexp: Kubernetes client.
  • kcli: Tool for inspecting kafka topics/partitions/messages.
  • fac: git merge conflict resolver
  • jsonui: Interactive JSON explorer for your terminal.
  • cointop: Interactive terminal based UI application for tracking cryptocurrencies.
  • lazygit: simple terminal UI for git commands.
  • lazydocker: The lazier way to manage everything docker.

Note: if your project is not listed here, let us know! :)