func (c *ConsoleCommand) Run(args []string) int {
args = c.Meta.process(args, true)
cmdFlags := c.Meta.flagSet("console")
cmdFlags.StringVar(&c.Meta.statePath, "state", DefaultStateFilename, "path")
cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
return 1
}
pwd, err := os.Getwd()
if err != nil {
c.Ui.Error(fmt.Sprintf("Error getting pwd: %s", err))
return 1
}
var configPath string
args = cmdFlags.Args()
if len(args) > 1 {
c.Ui.Error("The console command expects at most one argument.")
cmdFlags.Usage()
return 1
} else if len(args) == 1 {
configPath = args[0]
} else {
configPath = pwd
}
// Build the context based on the arguments given
ctx, _, err := c.Context(contextOpts{
Path: configPath,
PathEmptyOk: true,
StatePath: c.Meta.statePath,
})
if err != nil {
c.Ui.Error(err.Error())
return 1
}
// Setup the UI so we can output directly to stdout
ui := &cli.BasicUi{
Writer: wrappedstreams.Stdout(),
ErrorWriter: wrappedstreams.Stderr(),
}
// IO Loop
session := &repl.Session{
Interpolater: ctx.Interpolater(),
}
// Determine if stdin is a pipe. If so, we evaluate directly.
if c.StdinPiped() {
return c.modePiped(session, ui)
}
return c.modeInteractive(session, ui)
}
// getWidth impl for Unix
func getWidth() int {
stdoutFd := int(wrappedstreams.Stdout().Fd())
stderrFd := int(wrappedstreams.Stderr().Fd())
w := getWidthFd(stdoutFd)
if w < 0 {
w = getWidthFd(stderrFd)
}
return w
}
// IsTerminal determines if this process is attached to a TTY.
func IsTerminal() bool {
// Windows is always a terminal
if runtime.GOOS == "windows" {
return true
}
// Same implementation as readline but with our custom fds
return readline.IsTerminal(int(wrappedstreams.Stdin().Fd())) &&
(readline.IsTerminal(int(wrappedstreams.Stdout().Fd())) ||
readline.IsTerminal(int(wrappedstreams.Stderr().Fd())))
}
// Override overrides the values in readline.Config that need to be
// set with wrapped values.
func Override(cfg *readline.Config) *readline.Config {
cfg.Stdin = wrappedstreams.Stdin()
cfg.Stdout = wrappedstreams.Stdout()
cfg.Stderr = wrappedstreams.Stderr()
cfg.FuncGetWidth = TerminalWidth
cfg.FuncIsTerminal = IsTerminal
rm := RawMode{StdinFd: int(wrappedstreams.Stdin().Fd())}
cfg.FuncMakeRaw = rm.Enter
cfg.FuncExitRaw = rm.Exit
return cfg
}