Add validators schema and code templates

src/templates/go.handlebars

@@ -0,0 +1,47 @@
+package main
+
+import (
+    "flag"
+    "fmt"
+    "os"
+)
+
+var version = "{{spec.version}}"
+
+{{#each spec.globalOptions}}
+var {{goVarName name}} {{#if (eq type "string")}}string{{else if (eq type "number")}}int{{else if (eq type "boolean")}}bool{{else}}string{{/if}}
+{{/each}}
+
+func main() {
+    {{#each spec.globalOptions}}
+    flag.{{#if (eq type "string")}}StringVar{{else if (eq type "number")}}IntVar{{else if (eq type "boolean")}}BoolVar{{else}}StringVar{{/if}}(&{{goVarName name}}, "{{name}}", {{#if default}}{{toJson default}}{{else}}nil{{/if}}, "{{escape description}}")
+    {{/each}}
+
+    flag.Usage = func() {
+        fmt.Fprintf(os.Stderr, "{{spec.name}} - {{spec.description}}\\n\\nUsage:\\n  %s [options] <command> [args]\\n\\nOptions:\\n", os.Args[0])
+        flag.PrintDefaults()
+        fmt.Fprintf(os.Stderr, "\\nCommands:\\n")
+        {{#each spec.commands}}
+        fmt.Fprintf(os.Stderr, "  %-15s %s\\n", "{{name}}", "{{escape description}}")
+        {{/each}}
+    }
+
+    flag.Parse()
+
+    args := flag.Args()
+    if len(args) < 1 {
+        flag.Usage()
+        os.Exit(1)
+    }
+
+    switch args[0] {
+    {{#each spec.commands}}
+    case "{{name}}":
+        fmt.Println("Command: {{name}}")
+    {{/each}}
+    default:
+        fmt.Printf("Unknown command: %s\\n", args[0])
+        flag.Usage()
+        os.Exit(1)
+    }
+}