[Feature Request] Allow `-` for stdin about deno-cliffy HOT 3 CLOSED

Hi @oganexon,

What about using a normal option for specifying to read from stdin?

await new Command()
  .option("-i, --stdin", "Read from stdin.")
  .action(async ({ stdin }) => {
    if (stdin) {
      await Deno.copy(Deno.stdin, Deno.stdout);
    }
  })
  .parse();

I'm not shure if we should implement it as an option. What about passing the - as an argument to the action handler?

await new Command()
  .argument("<input:string>", "Input file or - for reading from stdin.")
  .action(async (_, input: string) => {
    if (input === "-") {
      await Deno.copy(Deno.stdin, Deno.stdout);
    }
  })
  .parse();

from deno-cliffy.

await new Command()
  .argument("<input:string>", "Input file or - for reading from stdin.")
  .action(async (_, input: string) => {
    if (input === "-") {
      await Deno.copy(Deno.stdin, Deno.stdout);
    }
  })
  .parse();

@c4spar This solution is just what I was looking for, thank you!

from deno-cliffy.

Hey @oganexon,

This solution was not yet working but it's fixed in v0.14.3 now.
I had a mistake in my previous example but here is a working one:

    await new Command()
      .arguments("<input:string>")
      .action(async (_, input: string) => {
        if (input === "-") {
          await Deno.copy(Deno.stdin, Deno.stdout);
        }
      })
      .parse();

from deno-cliffy.