Function realmain

cmd/hcldec/main.go:81–254

(args []string)

}

func realmain(args []string) error {

	if *specFile == "" {
		return fmt.Errorf("the --spec=... argument is required")
	}

	var diags hcl.Diagnostics

	specContent, specDiags := loadSpecFile(*specFile)
	diags = append(diags, specDiags...)
	if specDiags.HasErrors() {
		err := diagWr.WriteDiagnostics(diags)
		if err != nil {
			return fmt.Errorf("failed writing diagnostics: %w", err)
		}

		err = flush(diagWr)
		if err != nil {
			return fmt.Errorf("failed flushing diagnostics: %w", err)
		}
		os.Exit(2)
	}

	spec := specContent.RootSpec

	ctx := &hcl.EvalContext{
		Variables: map[string]cty.Value{},
		Functions: map[string]function.Function{},
	}
	for name, val := range specContent.Variables {
		ctx.Variables[name] = val
	}
	for name, f := range specContent.Functions {
		ctx.Functions[name] = f
	}
	if len(*vars) != 0 {
		for i, varsSpec := range *vars {
			var vals map[string]cty.Value
			var valsDiags hcl.Diagnostics
			if strings.HasPrefix(strings.TrimSpace(varsSpec), "{") {
				// literal JSON object on the command line
				vals, valsDiags = parseVarsArg(varsSpec, i)
			} else {
				// path to a file containing either HCL or JSON (by file extension)
				vals, valsDiags = parseVarsFile(varsSpec)
			}
			diags = append(diags, valsDiags...)
			for k, v := range vals {
				ctx.Variables[k] = v
			}
		}
	}

	// If we have empty context elements then we'll nil them out so that
	// we'll produce e.g. "variables are not allowed" errors instead of
	// "variable not found" errors.
	if len(ctx.Variables) == 0 {
		ctx.Variables = nil