Init.

go.mod

@@ -0,0 +1,3 @@
+module github.com/k1574/gomtool
+
+go 1.18

m/cmd/test/main.go

@@ -0,0 +1,25 @@
+package main
+
+import(
+	"github.com/k1574/gomtool/m/multitool"
+	"strconv"
+	"fmt"
+)
+
+var(
+	tools = multitool.Tools{
+		"echo" : func(args []string) {
+			fmt.Println(args)
+		},
+		"sum" : func(args []string) {
+			one, _ := strconv.Atoi(args[1])
+			two, _ := strconv.Atoi(args[2])
+			fmt.Println(one + two)
+		},
+	}
+)
+
+func main() {
+	multitool.Main("test", tools)
+}
+

m/multitool/main.go

@@ -0,0 +1,39 @@
+package multitool
+
+import(
+	"fmt"
+	"os"
+	"path"
+)
+
+
+type Tools map[string] func(args []string)
+
+func Main(name string, m Tools) {
+	var(
+		utilName string
+		args []string
+	)
+
+	if binBase := path.Base(os.Args[0]) ; binBase != name {
+		utilName = binBase
+		args = os.Args[:]
+	} else {
+		if len(os.Args)<2  {
+			for k, _ := range m {
+				fmt.Printf("%s\n", k)
+			}
+			os.Exit(0)
+		}
+		utilName = os.Args[1]
+		args = os.Args[1:]
+	}
+
+	if _, ok := m[utilName] ; !ok {
+		fmt.Printf("%s: No such uitl as '%s'.\n", os.Args[0], utilName )
+		os.Exit(1)
+	}
+
+	m[utilName](args)
+}
+

readme

@@ -0,0 +1,4 @@
+# gomtool
+
+Go multitool package. Suits the task of multiple programs in one like in "goblin".
+