Add Go runner

go/gilded-rose.go

@@ -1,7 +1,5 @@
 package main
 
-import "fmt"
-
 type Item struct {
 	name            string
 	sellIn, quality int
@@ -16,12 +14,6 @@ var items = []Item{
 	Item{"Conjured Mana Cake", 3, 6},
 }
 
-func main() {
-	fmt.Println("OMGHAI!")
-	// fmt.Print(items)
-	GildedRose()
-}
-
 func GildedRose() {
 	for i := 0; i < len(items); i++ {
 

go/runner.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	inFile := os.Args[1]
+	outFile := os.Args[2]
+	fmt.Printf("Reading from: %v.  Writing to: %v\n", inFile, outFile)
+	dat, err := ioutil.ReadFile(inFile)
+	if err != nil {
+		panic(err)
+	}
+	lines := strings.Split(string(dat), "\n")
+	items = nil
+	for i := 0; i < len(lines); i++ {
+		if !strings.HasPrefix(lines[i], ";") && (lines[i] != "") {
+			pieces := strings.Split(lines[i], "__")
+			name := pieces[0]
+			sellIn, _ := strconv.Atoi(pieces[1])
+			quality, _ := strconv.Atoi(pieces[2])
+			items = append(items, Item{name, sellIn, quality})
+		}
+	}
+
+	GildedRose()
+
+	var outStrings []string
+	for i := 0; i < len(items); i++ {
+		outStrings = append(outStrings, fmt.Sprintf("%v__%v__%v", items[i].name, items[i].sellIn, items[i].quality))
+	}
+	err = ioutil.WriteFile(outFile, []byte(strings.Join(outStrings, "\n")), 06444)
+	if err != nil {
+		panic(err)
+	}
+}