mirror of https://github.com/coder/coder.git
58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
//go:build !windows
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package pty
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import (
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"fmt"
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"os/exec"
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"runtime"
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"strings"
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"syscall"
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"golang.org/x/xerrors"
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)
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func startPty(cmd *exec.Cmd, opt ...StartOption) (retPTY *otherPty, proc Process, err error) {
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var opts startOptions
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for _, o := range opt {
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o(&opts)
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}
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opty, err := newPty(opts.ptyOpts...)
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if err != nil {
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return nil, nil, xerrors.Errorf("newPty failed: %w", err)
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}
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origEnv := cmd.Env
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if opty.opts.sshReq != nil {
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cmd.Env = append(cmd.Env, fmt.Sprintf("SSH_TTY=%s", opty.Name()))
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}
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setsid: true,
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Setctty: true,
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}
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cmd.Stdout = opty.tty
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cmd.Stderr = opty.tty
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cmd.Stdin = opty.tty
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err = cmd.Start()
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if err != nil {
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_ = opty.Close()
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if runtime.GOOS == "darwin" && strings.Contains(err.Error(), "bad file descriptor") {
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// macOS has an obscure issue where the PTY occasionally closes
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// before it's used. It's unknown why this is, but creating a new
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// TTY resolves it.
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cmd.Env = origEnv
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return startPty(cmd, opt...)
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}
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return nil, nil, xerrors.Errorf("start: %w", err)
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}
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oProcess := &otherProcess{
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pty: opty.pty,
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cmd: cmd,
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cmdDone: make(chan any),
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}
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go oProcess.waitInternal()
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return opty, oProcess, nil
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}
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