147 lines
3.1 KiB
Go
147 lines
3.1 KiB
Go
package command
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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"github.com/hashicorp/terraform/command/format"
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"github.com/hashicorp/terraform/terraform"
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)
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// ShowCommand is a Command implementation that reads and outputs the
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// contents of a Terraform plan or state file.
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type ShowCommand struct {
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Meta
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}
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func (c *ShowCommand) Run(args []string) int {
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var moduleDepth int
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args = c.Meta.process(args, false)
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cmdFlags := flag.NewFlagSet("show", flag.ContinueOnError)
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c.addModuleDepthFlag(cmdFlags, &moduleDepth)
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
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if err := cmdFlags.Parse(args); err != nil {
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return 1
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}
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args = cmdFlags.Args()
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if len(args) > 1 {
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c.Ui.Error(
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"The show command expects at most one argument with the path\n" +
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"to a Terraform state or plan file.\n")
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cmdFlags.Usage()
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return 1
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}
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var planErr, stateErr error
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var path string
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var plan *terraform.Plan
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var state *terraform.State
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if len(args) > 0 {
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path = args[0]
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f, err := os.Open(path)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error loading file: %s", err))
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return 1
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}
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defer f.Close()
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plan, err = terraform.ReadPlan(f)
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if err != nil {
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if _, err := f.Seek(0, 0); err != nil {
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c.Ui.Error(fmt.Sprintf("Error reading file: %s", err))
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return 1
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}
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plan = nil
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planErr = err
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}
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if plan == nil {
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state, err = terraform.ReadState(f)
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if err != nil {
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stateErr = err
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}
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}
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} else {
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// Load the backend
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b, err := c.Backend(nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load backend: %s", err))
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return 1
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}
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env := c.Env()
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// Get the state
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stateStore, err := b.State(env)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load state: %s", err))
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return 1
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}
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if err := stateStore.RefreshState(); err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load state: %s", err))
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return 1
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}
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state = stateStore.State()
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if state == nil {
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c.Ui.Output("No state.")
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return 0
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}
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}
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if plan == nil && state == nil {
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c.Ui.Error(fmt.Sprintf(
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"Terraform couldn't read the given file as a state or plan file.\n"+
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"The errors while attempting to read the file as each format are\n"+
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"shown below.\n\n"+
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"State read error: %s\n\nPlan read error: %s",
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stateErr,
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planErr))
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return 1
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}
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if plan != nil {
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c.Ui.Output(format.Plan(&format.PlanOpts{
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Plan: plan,
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Color: c.Colorize(),
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ModuleDepth: moduleDepth,
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}))
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return 0
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}
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c.Ui.Output(format.State(&format.StateOpts{
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State: state,
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Color: c.Colorize(),
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ModuleDepth: moduleDepth,
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}))
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return 0
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}
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func (c *ShowCommand) Help() string {
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helpText := `
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Usage: terraform show [options] [path]
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Reads and outputs a Terraform state or plan file in a human-readable
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form. If no path is specified, the current state will be shown.
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Options:
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-module-depth=n Specifies the depth of modules to show in the output.
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By default this is -1, which will expand all.
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-no-color If specified, output won't contain any color.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *ShowCommand) Synopsis() string {
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return "Inspect Terraform state or plan"
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}
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