package command import ( "fmt" "os" "github.com/hashicorp/terraform/config" "github.com/hashicorp/terraform/terraform" "github.com/mitchellh/cli" ) // DefaultStateFilename is the default filename used for the state file. const DefaultStateFilename = "terraform.tfstate" func ContextArg( path string, statePath string, opts *terraform.ContextOpts) (*terraform.Context, error) { // First try to just read the plan directly from the path given. f, err := os.Open(path) if err == nil { plan, err := terraform.ReadPlan(f) f.Close() if err == nil { return plan.Context(opts), nil } } if statePath != "" { if _, err := os.Stat(statePath); err != nil { return nil, fmt.Errorf( "There was an error reading the state file. The path\n"+ "and error are shown below. If you're trying to build a\n"+ "brand new infrastructure, explicitly pass the '-init'\n"+ "flag to Terraform to tell it it is okay to build new\n"+ "state.\n\n"+ "Path: %s\n"+ "Error: %s", statePath, err) } } // Load up the state var state *terraform.State if statePath != "" { f, err := os.Open(statePath) if err == nil { state, err = terraform.ReadState(f) f.Close() } if err != nil { return nil, fmt.Errorf("Error loading state: %s", err) } } config, err := config.LoadDir(path) if err != nil { return nil, fmt.Errorf("Error loading config: %s", err) } if err := config.Validate(); err != nil { return nil, fmt.Errorf("Error validating config: %s", err) } opts.Config = config opts.State = state ctx := terraform.NewContext(opts) if _, err := ctx.Plan(nil); err != nil { return nil, fmt.Errorf("Error running plan: %s", err) } return ctx, nil } func validateContext(ctx *terraform.Context, ui cli.Ui) bool { if ws, es := ctx.Validate(); len(ws) > 0 || len(es) > 0 { ui.Output( "There are warnings and/or errors related to your configuration. Please\n" + "fix these before continuing.\n") if len(ws) > 0 { ui.Output("Warnings:\n") for _, w := range ws { ui.Output(fmt.Sprintf(" * %s", w)) } if len(es) > 0 { ui.Output("") } } if len(es) > 0 { ui.Output("Errors:\n") for _, e := range es { ui.Output(fmt.Sprintf(" * %s", e)) } } return false } return true }