package command import ( "fmt" "path/filepath" "strings" "github.com/hashicorp/terraform/config" "github.com/hashicorp/terraform/terraform" ) // ValidateCommand is a Command implementation that validates the terraform files type ValidateCommand struct { Meta } const defaultPath = "." func (c *ValidateCommand) Run(args []string) int { args = c.Meta.process(args, true) var checkVars bool cmdFlags := c.Meta.flagSet("validate") cmdFlags.BoolVar(&checkVars, "check-variables", true, "check-variables") cmdFlags.Usage = func() { c.Ui.Error(c.Help()) } if err := cmdFlags.Parse(args); err != nil { return 1 } args = cmdFlags.Args() var dirPath string if len(args) == 1 { dirPath = args[0] } else { dirPath = "." } dir, err := filepath.Abs(dirPath) if err != nil { c.Ui.Error(fmt.Sprintf( "Unable to locate directory %v\n", err.Error())) } rtnCode := c.validate(dir, checkVars) return rtnCode } func (c *ValidateCommand) Synopsis() string { return "Validates the Terraform files" } func (c *ValidateCommand) Help() string { helpText := ` Usage: terraform validate [options] [dir] Validate the terraform files in a directory. Validation includes a basic check of syntax as well as checking that all variables declared in the configuration are specified in one of the possible ways: -var foo=... -var-file=foo.vars TF_VAR_foo environment variable terraform.tfvars default value If dir is not specified, then the current directory will be used. Options: -check-variables=true If set to true (default), the command will check whether all required variables have been specified. -no-color If specified, output won't contain any color. -var 'foo=bar' Set a variable in the Terraform configuration. This flag can be set multiple times. -var-file=foo Set variables in the Terraform configuration from a file. If "terraform.tfvars" is present, it will be automatically loaded if this flag is not specified. ` return strings.TrimSpace(helpText) } func (c *ValidateCommand) validate(dir string, checkVars bool) int { cfg, err := config.LoadDir(dir) if err != nil { c.Ui.Error(fmt.Sprintf( "Error loading files %v\n", err.Error())) return 1 } err = cfg.Validate() if err != nil { c.Ui.Error(fmt.Sprintf( "Error validating: %v\n", err.Error())) return 1 } if checkVars { mod, err := c.Module(dir) if err != nil { c.Ui.Error(fmt.Sprintf("Failed to load root config module: %s", err)) return 1 } opts := c.contextOpts() opts.Module = mod tfCtx, err := terraform.NewContext(opts) if err != nil { c.Ui.Error(fmt.Sprintf("Error: %v\n", err.Error())) return 1 } if !validateContext(tfCtx, c.Ui) { return 1 } } return 0 }