wehub-resource-sync
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
// Package vhs tty.go spawns the ttyd process.
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// It runs on the specified port and is generally meant to run in the background
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// so that other processes (go-rod) can connect to the tty.
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//
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// xterm.js is used for rendering the terminal and can be adjusted using the Set command.
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//
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// Set FontFamily "DejaVu Sans Mono"
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// Set FontSize 12
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// Set Padding 50
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package main
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import (
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"fmt"
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"net"
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"os"
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"os/exec"
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)
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// randomPort returns a random port number that is not in use.
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func randomPort() int {
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addr, _ := net.Listen("tcp", ":0") //nolint:gosec,noctx
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_ = addr.Close()
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return addr.Addr().(*net.TCPAddr).Port
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}
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// buildTtyCmd builds the ttyd exec.Command on the given port.
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func buildTtyCmd(port int, shell Shell) *exec.Cmd {
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args := []string{ //nolint:prealloc
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fmt.Sprintf("--port=%d", port),
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"--interface", "127.0.0.1",
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"-t", "rendererType=canvas",
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"-t", "disableResizeOverlay=true",
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"-t", "enableSixel=true",
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"-t", "customGlyphs=true",
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"--once", // will allow one connection and exit
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"--writable",
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}
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args = append(args, shell.Command...)
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cmd := exec.Command("ttyd", args...)
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if shell.Env != nil {
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cmd.Env = append(shell.Env, os.Environ()...)
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}
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return cmd
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}
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