adds main file

Author: Chris Cooper

main.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"sort"
+)
+
+var (
+	inFile  string
+	outFile string
+)
+
+func init() {
+	flag.StringVar(&inFile, "f", "", "The file to read from to generate parameters")
+	flag.StringVar(&outFile, "o", "", "Optional: Specify a file name to write out parameters")
+}
+
+func main() {
+	flag.Parse()
+
+	if inFile == "" {
+		fmt.Fprintln(os.Stderr, "Missing required argument -f")
+	}
+
+	m := make(map[string]interface{})
+	data, err := ioutil.ReadFile(inFile)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
+	err = json.Unmarshal(data, &m)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
+
+	if _, ok := m["Parameters"]; !ok {
+		fmt.Fprintln(os.Stderr, "Parameters not found in file")
+		os.Exit(-1)
+	}
+
+	params := m["Parameters"].(map[string]interface{})
+
+	keys := make([]string, 0)
+
+	for k := range params {
+		keys = append(keys, k)
+	}
+
+	sort.Strings(keys)
+
+	s := "[\n"
+
+	for _, k := range keys {
+		s += fmt.Sprintf(`	{
+		"ParameterKey": "%s",
+		"ParameterValue": ""
+	},
+`, k)
+	}
+
+	s += "\n]"
+
+	if outFile != "" {
+		err = ioutil.WriteFile(outFile, []byte(data), 0644)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+		}
+	} else {
+		fmt.Print(s)
+	}
+
+}