mirror of
https://github.com/jesseduffield/lazygit.git
synced 2026-08-24 10:13:41 -05:00
Stefan Haller
196e0a3c17
I copied all files except dot files (.github and .gitignore), the _examples folder, and go.mod/go.sum. At some point we may want to copy the files back to the gocui repo when other clients (e.g. lazydocker) want to use the newer versions of them.
59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
// Copyright 2014 The gocui Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !windows
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package gocui
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import (
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"os"
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"os/signal"
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"syscall"
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"unsafe"
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"github.com/go-errors/errors"
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)
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// getTermWindowSize is get terminal window size on linux or unix.
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// When gocui run inside the docker contaienr need to check and get the window size.
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func (g *Gui) getTermWindowSize() (int, int, error) {
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var sz struct {
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rows uint16
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cols uint16
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_ [2]uint16 // to match underlying syscall; see https://github.com/awesome-gocui/gocui/issues/33
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}
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var termw, termh int
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out, err := os.OpenFile("/dev/tty", os.O_RDWR, 0)
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if err != nil {
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return 0, 0, err
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}
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defer out.Close()
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signalCh := make(chan os.Signal, 1)
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signal.Notify(signalCh, syscall.SIGWINCH, syscall.SIGINT)
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for {
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_, _, _ = syscall.Syscall(syscall.SYS_IOCTL,
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out.Fd(), uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&sz)))
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// check terminal window size
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termw, termh = int(sz.cols), int(sz.rows)
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if termw > 0 && termh > 0 {
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return termw, termh, nil
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}
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signal := <-signalCh
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switch signal {
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// when the terminal window size is changed
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case syscall.SIGWINCH:
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continue
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// ctrl + c to cancel
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case syscall.SIGINT:
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return 0, 0, errors.New("stop to get term window size")
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}
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}
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}
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