cmd/mbf: daemon command

This services internal/pkg artifact IR with Rosa OS extensions originating from another process.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/mbf/main.go

@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"io"
 	"log"
+	"net"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -69,11 +70,20 @@ func main() {
 
 	var (
 		flagQuiet bool
+
+		addr net.UnixAddr
 	)
 	c := command.New(os.Stderr, log.Printf, "mbf", func([]string) error {
 		msg.SwapVerbose(!flagQuiet)
 		cm.ctx, cm.msg = ctx, msg
 		cm.base = os.ExpandEnv(cm.base)
+
+		addr.Net = "unix"
+		addr.Name = os.ExpandEnv(addr.Name)
+		if addr.Name == "" {
+			addr.Name = "daemon"
+		}
+
 		return nil
 	}).Flag(
 		&flagQuiet,
@@ -102,6 +112,10 @@ func main() {
 		),
 		"Do not restrict networked cure containers from connecting to host "+
 			"abstract UNIX sockets",
+	).Flag(
+		&addr.Name,
+		"socket", command.StringFlag("$MBF_DAEMON_SOCKET"),
+		"Pathname of socket to bind to",
 	)
 
 	c.NewCommand(
@@ -267,6 +281,19 @@ func main() {
 			)
 	}
 
+	c.NewCommand(
+		"daemon",
+		"Service artifact IR with Rosa OS extensions",
+		func(args []string) error {
+			ul, err := net.ListenUnix("unix", &addr)
+			if err != nil {
+				return err
+			}
+			log.Printf("listening on pathname socket at %s", addr.Name)
+			return serve(ctx, log.Default(), &cm, ul)
+		},
+	)
+
 	{
 		var (
 			flagGentoo   string
@@ -374,6 +401,7 @@ func main() {
 			flagDump   string
 			flagEnter  bool
 			flagExport string
+			flagRemote bool
 		)
 		c.NewCommand(
 			"cure",
@@ -450,6 +478,13 @@ func main() {
 							"sh",
 						)
 					})
+
+				case flagRemote:
+					pathname, err := cureRemote(ctx, &addr, rosa.Std.Load(p))
+					if err == nil {
+						log.Println(pathname)
+					}
+					return err
 				}
 			},
 		).
@@ -467,6 +502,11 @@ func main() {
 				&flagEnter,
 				"enter", command.BoolFlag(false),
 				"Enter cure container with an interactive shell",
+			).
+			Flag(
+				&flagRemote,
+				"daemon", command.BoolFlag(false),
+				"Cure artifact on the daemon",
 			)
 	}