opentofu/command/state_pull.go
Martin Atkins ebafa51723 command: Various updates for the new backend package API
This is a rather-messy, complex change to get the "command" package
building again against the new backend API that was updated for
the new configuration loader.

A lot of this is mechanical rewriting to the new API, but
meta_config.go and meta_backend.go in particular saw some major
changes to interface with the new loader APIs and to deal with
the change in order of steps in the backend API.
2018-10-16 18:44:26 -07:00

84 lines
1.7 KiB
Go

package command
import (
"bytes"
"fmt"
"strings"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/cli"
)
// StatePullCommand is a Command implementation that shows a single resource.
type StatePullCommand struct {
Meta
StateMeta
}
func (c *StatePullCommand) Run(args []string) int {
args, err := c.Meta.process(args, true)
if err != nil {
return 1
}
cmdFlags := c.Meta.flagSet("state pull")
if err := cmdFlags.Parse(args); err != nil {
return cli.RunResultHelp
}
args = cmdFlags.Args()
// Load the backend
b, backendDiags := c.Backend(nil)
if backendDiags.HasErrors() {
c.showDiagnostics(backendDiags)
return 1
}
// Get the state
env := c.Workspace()
state, err := b.State(env)
if err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load state: %s", err))
return 1
}
if err := state.RefreshState(); err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load state: %s", err))
return 1
}
s := state.State()
if s == nil {
// Output on "error" so it shows up on stderr
c.Ui.Error("Empty state (no state)")
return 0
}
var buf bytes.Buffer
if err := terraform.WriteState(s, &buf); err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load state: %s", err))
return 1
}
c.Ui.Output(buf.String())
return 0
}
func (c *StatePullCommand) Help() string {
helpText := `
Usage: terraform state pull [options]
Pull the state from its location and output it to stdout.
This command "pulls" the current state and outputs it to stdout.
The primary use of this is for state stored remotely. This command
will still work with local state but is less useful for this.
`
return strings.TrimSpace(helpText)
}
func (c *StatePullCommand) Synopsis() string {
return "Pull current state and output to stdout"
}