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3aaa1e9d04
There was no cancellation context for a plan, so it would always have to run to completion as SIGINT was being swallowed. Move the shutdown channel to the command Meta since it's used in multiple commands.
157 lines
3.6 KiB
Go
157 lines
3.6 KiB
Go
package command
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import (
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"bufio"
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"fmt"
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"strings"
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"github.com/hashicorp/terraform/backend"
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"github.com/hashicorp/terraform/config"
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"github.com/hashicorp/terraform/helper/wrappedstreams"
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"github.com/hashicorp/terraform/repl"
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"github.com/mitchellh/cli"
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)
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// ConsoleCommand is a Command implementation that applies a Terraform
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// configuration and actually builds or changes infrastructure.
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type ConsoleCommand struct {
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Meta
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}
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func (c *ConsoleCommand) Run(args []string) int {
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args, err := c.Meta.process(args, true)
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if err != nil {
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return 1
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}
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cmdFlags := c.Meta.flagSet("console")
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cmdFlags.StringVar(&c.Meta.statePath, "state", DefaultStateFilename, "path")
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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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configPath, err := ModulePath(cmdFlags.Args())
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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// Load the module
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mod, err := c.Module(configPath)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load root config module: %s", err))
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return 1
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}
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var conf *config.Config
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if mod != nil {
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conf = mod.Config()
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}
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// Load the backend
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b, err := c.Backend(&BackendOpts{
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Config: conf,
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})
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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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// We require a local backend
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local, ok := b.(backend.Local)
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if !ok {
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c.Ui.Error(ErrUnsupportedLocalOp)
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return 1
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}
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// Build the operation
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opReq := c.Operation()
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opReq.Module = mod
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// Get the context
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ctx, _, err := local.Context(opReq)
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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// Setup the UI so we can output directly to stdout
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ui := &cli.BasicUi{
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Writer: wrappedstreams.Stdout(),
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ErrorWriter: wrappedstreams.Stderr(),
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}
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// IO Loop
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session := &repl.Session{
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Interpolater: ctx.Interpolater(),
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}
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// Determine if stdin is a pipe. If so, we evaluate directly.
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if c.StdinPiped() {
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return c.modePiped(session, ui)
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}
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return c.modeInteractive(session, ui)
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}
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func (c *ConsoleCommand) modePiped(session *repl.Session, ui cli.Ui) int {
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var lastResult string
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scanner := bufio.NewScanner(wrappedstreams.Stdin())
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for scanner.Scan() {
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// Handle it. If there is an error exit immediately
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result, err := session.Handle(strings.TrimSpace(scanner.Text()))
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if err != nil {
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ui.Error(err.Error())
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return 1
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}
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// Store the last result
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lastResult = result
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}
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// Output the final result
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ui.Output(lastResult)
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return 0
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}
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func (c *ConsoleCommand) Help() string {
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helpText := `
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Usage: terraform console [options] [DIR]
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Starts an interactive console for experimenting with Terraform
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interpolations.
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This will open an interactive console that you can use to type
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interpolations into and inspect their values. This command loads the
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current state. This lets you explore and test interpolations before
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using them in future configurations.
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This command will never modify your state.
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DIR can be set to a directory with a Terraform state to load. By
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default, this will default to the current working directory.
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Options:
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-state=path Path to read state. Defaults to "terraform.tfstate"
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-var 'foo=bar' Set a variable in the Terraform configuration. This
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flag can be set multiple times.
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-var-file=foo Set variables in the Terraform configuration from
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a file. If "terraform.tfvars" or any ".auto.tfvars"
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files are present, they will be automatically loaded.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *ConsoleCommand) Synopsis() string {
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return "Interactive console for Terraform interpolations"
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}
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