pulumi/cmd/stack_output.go
Joe Duffy 1681119339
Add a stack output command (#675)
This change adds a `pulumi stack output` command.  When passed no
arguments, it prints all stack output properties, in exactly the
same format as `pulumi stack` does (just without all the other stuff).
More importantly, if you pass a specific output property, a la
`pulumi stack output clusterARN`, just that property will be printed,
in a scriptable-friendly manner.  This will help us automate wiring
multiple layers of stacks together during deployments.

This fixes pulumi/pulumi#659.
2017-12-08 13:14:58 -08:00

50 lines
1.3 KiB
Go

// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
package cmd
import (
"fmt"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/pulumi/pulumi/pkg/util/cmdutil"
)
func newStackOutputCmd() *cobra.Command {
return &cobra.Command{
Use: "output [property-name]",
Args: cmdutil.MaximumNArgs(1),
Short: "Show a stack's output properties",
Long: "Show a stack's output properties.\n" +
"\n" +
"By default, this command lists all output properties exported from a stack.\n" +
"If a specific property-name is supplied, just that property's value is shown.",
Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
// Fetch the current stack and its output properties.
s, err := requireCurrentStack()
if err != nil {
return err
}
res, outputs := getRootStackResource(s.Snapshot())
if res == nil || outputs == nil {
return errors.New("current stack has no output properties")
}
// If there is an argument, just print that property. Else, print them all (similar to `pulumi stack`).
if len(args) > 0 {
name := args[0]
v, has := outputs[name]
if has {
fmt.Printf("%v\n", v)
} else {
return errors.Errorf("current stack does not have output property '%v'", name)
}
} else {
printStackOutputs(outputs)
}
return nil
}),
}
}