Transitional commit

Makefile

@@ -17,15 +17,18 @@ testr:
 	go test -race -shuffle on github.com/telemachus/gitmirror/cli
 
 build: lint testr
+	go build -o gitmirror ./cmd/gitmirror/main.go
 	go build -o gitmirror-init  ./cmd/gitmirror-init/main.go
 	go build -o gitmirror-update  ./cmd/gitmirror-update/main.go
 
 install: build
+	mv gitmirror $(HOME)/bin/gitmirror
 	mv gitmirror-init $(HOME)/bin/gitmirror-init
 	mv gitmirror-update $(HOME)/bin/gitmirror-update
 
 clean:
 	go clean -i -r -cache
+	rm gitmirror
 	rm gitmirror-init
 	rm gitmirror-update
 

cli/wrapper.go

@@ -0,0 +1,61 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"syscall"
+)
+
+const (
+	wrapperCmd     = "gitmirror"
+	wrapperVersion = "0.1.0"
+	wrapperUsage   = `usage: gitmirror <command> [options]
+
+The commands are:
+	initialize|init
+	update|up
+	version
+
+Use "gitmirror help <command>" for more information about a command.
+`
+)
+
+// CmdWrapper turns, e.g., `gitmirror update --q` into `gitmirror-update --q`.
+func CmdWrapper(args []string) int {
+	if len(args) < 1 {
+		fmt.Fprint(os.Stderr, wrapperUsage)
+		return exitFailure
+	}
+	switch args[0] {
+	case "initialize", "init":
+		binary, lookErr := exec.LookPath("gitmirror-init")
+		if lookErr != nil {
+			fmt.Fprintf(os.Stdout, "%s: v%s\n", wrapperCmd, lookErr)
+			return exitFailure
+		}
+		cmdArgs := make([]string, 0, len(args))
+		cmdArgs = append(cmdArgs, "gitmirror-init")
+		cmdArgs = append(cmdArgs, args[1:]...)
+		env := os.Environ()
+		execErr := syscall.Exec(binary, cmdArgs, env)
+		if execErr != nil {
+			fmt.Fprintf(os.Stdout, "%s: v%s\n", wrapperCmd, execErr)
+			return exitFailure
+		}
+	case "update", "up":
+		cmdArgs := args[1:]
+		cmd := exec.Command("gitmirror-update", cmdArgs...)
+		err := cmd.Run()
+		if err != nil {
+			fmt.Fprintf(os.Stdout, "%s: v%s\n", wrapperCmd, err)
+			return exitFailure
+		}
+	case "version":
+		fmt.Fprintf(os.Stdout, "%s: v%s\n", wrapperCmd, wrapperVersion)
+	default:
+		fmt.Fprint(os.Stderr, wrapperUsage)
+		return exitFailure
+	}
+	return exitSuccess
+}