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127 lines
3.6 KiB
Go
127 lines
3.6 KiB
Go
package command
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import (
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"fmt"
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"strings"
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"github.com/hashicorp/terraform/terraform"
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"github.com/mitchellh/cli"
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)
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// StateMvCommand is a Command implementation that shows a single resource.
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type StateMvCommand struct {
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Meta
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StateMeta
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}
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func (c *StateMvCommand) Run(args []string) int {
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args = c.Meta.process(args, true)
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var backupPath string
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cmdFlags := c.Meta.flagSet("state show")
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cmdFlags.StringVar(&backupPath, "backup", "", "backup")
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cmdFlags.StringVar(&c.Meta.statePath, "state", DefaultStateFilename, "path")
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cmdFlags.StringVar(&c.Meta.stateOutPath, "state-out", "", "path")
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if err := cmdFlags.Parse(args); err != nil {
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return cli.RunResultHelp
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}
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args = cmdFlags.Args()
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if len(args) != 2 {
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c.Ui.Error("Exactly two arguments expected.\n")
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return cli.RunResultHelp
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}
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state, err := c.StateMeta.State(&c.Meta)
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if err != nil {
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c.Ui.Error(fmt.Sprintf(errStateLoadingState, err))
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return cli.RunResultHelp
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}
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stateReal := state.State()
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if stateReal == nil {
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c.Ui.Error(fmt.Sprintf(errStateNotFound))
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return 1
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}
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filter := &terraform.StateFilter{State: stateReal}
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results, err := filter.Filter(args[0])
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if err != nil {
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c.Ui.Error(fmt.Sprintf(errStateMv, err))
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return cli.RunResultHelp
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}
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if err := stateReal.Remove(args[0]); err != nil {
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c.Ui.Error(fmt.Sprintf(errStateMv, err))
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return 1
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}
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if err := stateReal.Add(args[0], args[1], results[0].Value); err != nil {
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c.Ui.Error(fmt.Sprintf(errStateMv, err))
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return 1
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}
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if err := state.WriteState(stateReal); err != nil {
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c.Ui.Error(fmt.Sprintf(errStateMvPersist, err))
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return 1
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}
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if err := state.PersistState(); err != nil {
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c.Ui.Error(fmt.Sprintf(errStateMvPersist, err))
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return 1
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}
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c.Ui.Output(fmt.Sprintf(
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"Moved %s to %s", args[0], args[1]))
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return 0
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}
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func (c *StateMvCommand) Help() string {
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helpText := `
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Usage: terraform state mv [options] ADDRESS ADDRESS
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Move an item in the state to another location within the same state.
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This command is useful for module refactors (moving items into a module)
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or generally renaming of resources.
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This command creates a timestamped backup of the state on every invocation.
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This can't be disabled. Due to the destructive nature of this command,
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the backup is ensured by Terraform for safety reasons.
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This command can't currently move an item from one state file to a
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completely new state file, but this functionality will come in an update.
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Options:
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-backup=PATH Path where Terraform should write the backup
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state. This can't be disabled. If not set, Terraform
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will write it to the same path as the statefile with
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a backup extension.
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-state=PATH Path to a Terraform state file to use to look
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up Terraform-managed resources. By default it will
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use the state "terraform.tfstate" if it exists.
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-state-out=PATH Path to the destination state file to move the item
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to. This defaults to the same statefile. This will
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overwrite the destination state file.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *StateMvCommand) Synopsis() string {
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return "Move an item in the state"
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}
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const errStateMv = `Error moving state: %[1]s
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Please ensure your addresses and state paths are valid. No
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state was persisted. Your existing states are untouched.`
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const errStateMvPersist = `Error saving the state: %s
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The state wasn't saved properly. If the error happening after a partial
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write occurred, a backup file will have been created. Otherwise, the state
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is in the same state it was when the operation started.`
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