Feature Request: workspace support

[saitotqr]

Feature Description

tfexec doesn't support a workspace-based environment, and I want support it.

Use Case(s)

I want to run Plan and Apply in a workspace environment. I have confirmed that the following code does not currently work.

package main

import (
	"context"
	"fmt"
	"github.com/hashicorp/terraform-exec/tfexec"
)

func main() {
	var dst = "/Users/takuro.saito/work/core-infra/terraform/aws/tools/slack-command/"
	var ctx context.Context
	ctx = context.Background()

	tf, err := tfexec.NewTerraform(dst, "")
	if err != nil {
		panic(err)
	}

	fmt.Println("init")
	err = tf.Init(ctx)
	if err != nil {
		panic(err)
	}
}

❯ go run main.go
init
panic: 
Error: Failed to select workspace: input not a valid number




goroutine 1 [running]:
main.main()
        /var/tmp/path/to/main.go:23 +0x133
exit status 2

[paultyng]

Looks like we'll need to wrap list, show, select at the very least, if not the new/delete yet.