package arguments import ( "github.com/hashicorp/terraform/tfdiags" ) // Output represents the command-line arguments for the output command. type Output struct { // Name identifies which root module output to show. If empty, show all // outputs. Name string // StatePath is an optional path to a state file, from which outputs will // be loaded. StatePath string // ViewType specifies which output format to use: human, JSON, or "raw". ViewType ViewType } // ParseOutput processes CLI arguments, returning an Output value and errors. // If errors are encountered, an Output value is still returned representing // the best effort interpretation of the arguments. func ParseOutput(args []string) (*Output, tfdiags.Diagnostics) { var diags tfdiags.Diagnostics output := &Output{} var jsonOutput, rawOutput bool var statePath string cmdFlags := defaultFlagSet("output") cmdFlags.BoolVar(&jsonOutput, "json", false, "json") cmdFlags.BoolVar(&rawOutput, "raw", false, "raw") cmdFlags.StringVar(&statePath, "state", "", "path") if err := cmdFlags.Parse(args); err != nil { diags = diags.Append(tfdiags.Sourceless( tfdiags.Error, "Failed to parse command-line flags", err.Error(), )) } args = cmdFlags.Args() if len(args) > 1 { diags = diags.Append(tfdiags.Sourceless( tfdiags.Error, "Unexpected argument", "The output command expects exactly one argument with the name of an output variable or no arguments to show all outputs.", )) } if jsonOutput && rawOutput { diags = diags.Append(tfdiags.Sourceless( tfdiags.Error, "Invalid output format", "The -raw and -json options are mutually-exclusive.", )) // Since the desired output format is unknowable, fall back to default jsonOutput = false rawOutput = false } output.StatePath = statePath if len(args) > 0 { output.Name = args[0] } if rawOutput && output.Name == "" { diags = diags.Append(tfdiags.Sourceless( tfdiags.Error, "Output name required", "You must give the name of a single output value when using the -raw option.", )) } switch { case jsonOutput: output.ViewType = ViewJSON case rawOutput: output.ViewType = ViewRaw default: output.ViewType = ViewHuman } return output, diags }