add system setup and verification

cmd/cli/cli.go

@@ -12,6 +12,7 @@ func main() {
 		generateCmd(),
 		webappCmd(),
 		tailwindCmd(),
+		setupCmd(),
 	}
 
 	app := &cli.App{

cmd/cli/commands.go

@@ -283,3 +283,19 @@ func tailwindCmd() *cli.Command {
 		},
 	}
 }
+
+func setupCmd() *cli.Command {
+	return &cli.Command{
+		Name:    "setup",
+		Aliases: []string{"s"},
+		Usage:   "Set up masonry, makes sure all dependencies are installed so Masonry can do its job.",
+		Action: func(c *cli.Context) error {
+			fmt.Printf("Running on %s/%s\n", runtime.GOOS, runtime.GOARCH)
+
+			if err := ensureDependencies(); err != nil {
+				return fmt.Errorf("error ensuring dependencies | %w", err)
+			}
+			return nil
+		},
+	}
+}

cmd/cli/setup.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+// dependency contains the command name and a URL for installation instructions.
+type dependency struct {
+	name       string
+	installURL string
+}
+
+// checkCommandExists returns true if the given command exists in the PATH.
+// If it does not exist, then it prints an instruction message.
+func checkCommandExists(dep dependency) bool {
+	if _, err := exec.LookPath(dep.name); err != nil {
+		fmt.Printf("Dependency missing: %s\n", dep.name)
+		fmt.Printf("  Please install from: %s\n\n", dep.installURL)
+		return false
+	}
+	return true
+}
+
+// ensureDependencies checks that all required tools are installed and then
+// runs the 'go install' command to install the specified packages.
+func ensureDependencies() error {
+	// List your dependencies along with links to instructions.
+	dependencies := []dependency{
+		{"protoc", "https://github.com/protocolbuffers/protobuf/releases"},
+		{"go", "https://go.dev/doc/install"},
+		{"node", "https://nodejs.org/en/download"},
+		{"npm", "https://nodejs.org/en/download"},
+	}
+
+	missing := false
+	for _, dep := range dependencies {
+		if !checkCommandExists(dep) {
+			missing = true
+		}
+	}
+	if missing {
+		return fmt.Errorf("one or more dependencies are missing; please install them before proceeding")
+	}
+
+	// Run the 'go install' command.
+	// We list all packages as arguments. This command is common on all platforms.
+	toInstall := []string{
+		"github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway@latest",
+		"github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2@latest",
+		"google.golang.org/protobuf/cmd/protoc-gen-go@latest",
+		"google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest",
+	}
+
+	fmt.Println("All dependencies found. Running:")
+	fmt.Printf("  go install \n\t%s\n", strings.Join(toInstall, "\n\t"))
+
+	for _, pkg := range toInstall {
+		cmd := exec.Command("go", "install", pkg)
+		// Inherit stdout/stderr so you can see the output.
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err := cmd.Run()
+		if err != nil {
+			return fmt.Errorf("failed to run go install command for package %s: %w", pkg, err)
+		}
+	}
+
+	fmt.Println("Installation of protoc plugins completed successfully.")
+	return nil
+}