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f40800b3a4
This is part of a general effort to move all of Terraform's non-library package surface under internal in order to reinforce that these are for internal use within Terraform only. If you were previously importing packages under this prefix into an external codebase, you could pin to an earlier release tag as an interim solution until you've make a plan to achieve the same functionality some other way.
128 lines
3.1 KiB
Go
128 lines
3.1 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/internal/command/arguments"
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"github.com/hashicorp/terraform/internal/command/views"
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"github.com/hashicorp/terraform/internal/states"
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"github.com/hashicorp/terraform/internal/tfdiags"
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)
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// OutputCommand is a Command implementation that reads an output
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// from a Terraform state and prints it.
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type OutputCommand struct {
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Meta
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}
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func (c *OutputCommand) Run(rawArgs []string) int {
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// Parse and apply global view arguments
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common, rawArgs := arguments.ParseView(rawArgs)
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c.View.Configure(common)
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// Parse and validate flags
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args, diags := arguments.ParseOutput(rawArgs)
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if diags.HasErrors() {
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c.View.Diagnostics(diags)
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c.View.HelpPrompt("output")
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return 1
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}
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view := views.NewOutput(args.ViewType, c.View)
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// Fetch data from state
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outputs, diags := c.Outputs(args.StatePath)
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if diags.HasErrors() {
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view.Diagnostics(diags)
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return 1
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}
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// Render the view
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viewDiags := view.Output(args.Name, outputs)
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diags = diags.Append(viewDiags)
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view.Diagnostics(diags)
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if diags.HasErrors() {
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return 1
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}
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return 0
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}
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func (c *OutputCommand) Outputs(statePath string) (map[string]*states.OutputValue, tfdiags.Diagnostics) {
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var diags tfdiags.Diagnostics
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// Allow state path override
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if statePath != "" {
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c.Meta.statePath = statePath
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}
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// Load the backend
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b, backendDiags := c.Backend(nil)
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diags = diags.Append(backendDiags)
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if diags.HasErrors() {
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return nil, diags
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}
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// This is a read-only command
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c.ignoreRemoteBackendVersionConflict(b)
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env, err := c.Workspace()
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if err != nil {
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diags = diags.Append(fmt.Errorf("Error selecting workspace: %s", err))
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return nil, diags
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}
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// Get the state
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stateStore, err := b.StateMgr(env)
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if err != nil {
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diags = diags.Append(fmt.Errorf("Failed to load state: %s", err))
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return nil, diags
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}
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if err := stateStore.RefreshState(); err != nil {
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diags = diags.Append(fmt.Errorf("Failed to load state: %s", err))
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return nil, diags
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}
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state := stateStore.State()
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if state == nil {
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state = states.NewState()
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}
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return state.RootModule().OutputValues, nil
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}
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func (c *OutputCommand) Help() string {
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helpText := `
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Usage: terraform [global options] output [options] [NAME]
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Reads an output variable from a Terraform state file and prints
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the value. With no additional arguments, output will display all
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the outputs for the root module. If NAME is not specified, all
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outputs are printed.
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Options:
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-state=path Path to the state file to read. Defaults to
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"terraform.tfstate".
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-no-color If specified, output won't contain any color.
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-json If specified, machine readable output will be
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printed in JSON format.
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-raw For value types that can be automatically
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converted to a string, will print the raw
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string directly, rather than a human-oriented
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representation of the value.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *OutputCommand) Synopsis() string {
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return "Show output values from your root module"
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}
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