drop databases

.gitignore

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+*.exe

README.md

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+# rmMongodbDatabases
+
+simple Go code to drop databases in mongodb
+
+usage:
+```
+./rmMongodbDatabases databasename1 databasename2 databasename3
+```

errors.go

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+package main
+
+import "log"
+
+func check(err error) {
+	if err != nil {
+		log.Println(err)
+	}
+}

main.go

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+package main
+
+import (
+	"os"
+
+	"github.com/fatih/color"
+	mgo "gopkg.in/mgo.v2"
+)
+
+const mongoip = "127.0.0.1:27017"
+
+func main() {
+	session, err := getSession()
+	check(err)
+
+	var databases []string
+	if len(os.Args) > 1 {
+		for i, arg := range os.Args {
+			if i > 0 {
+				databases = append(databases, arg)
+			}
+		}
+	}
+	for _, database := range databases {
+		db := getDatabase(session, database)
+		color.Yellow("delete database: " + database)
+		err := db.DropDatabase()
+		check(err)
+	}
+}
+
+func getSession() (*mgo.Session, error) {
+	session, err := mgo.Dial("mongodb://" + mongoip)
+	if err != nil {
+		panic(err)
+	}
+	//defer session.Close()
+
+	// Optional. Switch the session to a monotonic behavior.
+	session.SetMode(mgo.Monotonic, true)
+
+	// Optional. Switch the session to a monotonic behavior.
+	session.SetMode(mgo.Monotonic, true)
+
+	return session, err
+}
+func getDatabase(session *mgo.Session, database string) *mgo.Database {
+
+	D := session.DB(database)
+	return D
+}
+func getCollection(session *mgo.Session, database string, collection string) *mgo.Collection {
+
+	c := session.DB(database).C(collection)
+	return c
+}