46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
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package media
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import (
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"github.com/creack/pty"
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"golang.org/x/term"
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"io"
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"os"
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"os/exec"
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"os/signal"
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"syscall"
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)
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func Watch(path string) {
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cmd := exec.Command("mpv", "--osd-fractions", "--term-osd=force", path)
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ptmx, err := pty.Start(cmd)
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if err != nil {
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panic(err)
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}
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// Make sure to close the pty at the end.
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defer func() { ptmx.Close() }() // Best effort.
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// Handle pty size.
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ch := make(chan os.Signal, 1)
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signal.Notify(ch, syscall.SIGWINCH)
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go func() {
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for range ch {
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pty.InheritSize(os.Stdin, ptmx)
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}
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}()
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ch <- syscall.SIGWINCH // Initial resize.
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defer func() { signal.Stop(ch); close(ch) }() // Cleanup signals when done.
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// Set stdin in raw mode.
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oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
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if err != nil {
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panic(err)
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}
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defer func() { term.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
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// Copy stdin to the pty and the pty to stdout.
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// NOTE: The goroutine will keep reading until the next keystroke before returning.
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go func() { io.Copy(ptmx, os.Stdin) }()
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io.Copy(os.Stdout, ptmx)
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}
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