Add config module.

config/config.go

@@ -0,0 +1,53 @@
+package config
+
+import (
+	"flag"
+	"log"
+	"io/ioutil"
+	"launchpad.net/goyaml"
+)
+
+var config map[string]interface{}
+
+func GetSafe(key string) (interface{}, bool) {
+	value, ok := config[key]
+	return value, ok
+}
+
+func Get(key string) interface{} {
+	return config[key]
+}
+
+func GetInt(key string) int {
+	value, ok := GetSafe(key)
+	if ok {
+		value_int, ok := value.(int)
+		if ok {
+			return value_int
+		}
+	}
+	return 0
+}
+
+func GetString(key string) string {
+	value, ok := GetSafe(key)
+	if ok {
+		value_string, ok := value.(string)
+		if ok {
+			return value_string
+		}
+	}
+	return ""
+}
+
+func init() {
+	log.Println("Start config")
+	config = make(map[string]interface{})
+	config_file := flag.String("config", "pilosa.yaml", "Path to config file.")
+	flag.Parse()
+	data, err := ioutil.ReadFile(*config_file)
+	if err != nil {
+		log.Fatal("Problem with config file. ", err)
+	}
+	goyaml.Unmarshal(data, &config)
+}

deps.json

@@ -19,6 +19,11 @@
         "version": "87bcc4729f2c5a08d2513ad10684c6bbd256380f",
         "type": "git"
     },
+    "goyaml": {
+        "repo": "launchpad.net/goyaml",
+        "version": "50",
+        "type": "bzr"
+    },
     "lru": {
         "repo": "github.com/golang/groupcache/lru",
         "version": "d781998583680cda80cf61e0b37dd0cd8da2eb52",