Add subscription manager

main/commands/all/engineering/nonnativelinkexec.go

@@ -0,0 +1,54 @@
+package engineering
+
+import (
+	"bytes"
+	"flag"
+	"io"
+	"os"
+
+	"github.com/v2fly/v2ray-core/v5/app/subscription/entries/nonnative"
+	"github.com/v2fly/v2ray-core/v5/main/commands/base"
+)
+
+var cmdNonNativeLinkExecInputName *string
+
+var cmdNonNativeLinkExecTemplatePath *string
+
+var cmdNonNativeLinkExec = &base.Command{
+	UsageLine: "{{.Exec}} engineering nonnativelinkexec",
+	Flag: func() flag.FlagSet {
+		fs := flag.NewFlagSet("", flag.ExitOnError)
+		cmdNonNativeLinkExecInputName = fs.String("name", "", "")
+		cmdNonNativeLinkExecTemplatePath = fs.String("templatePath", "", "path for template directory (WARNING: This will not stop templates from reading file outside this directory)")
+		return *fs
+	}(),
+	Run: func(cmd *base.Command, args []string) {
+		cmd.Flag.Parse(args)
+
+		content, err := io.ReadAll(os.Stdin)
+		if err != nil {
+			base.Fatalf("%s", err)
+		}
+		flattenedLink := nonnative.ExtractAllValuesFromBytes(content)
+
+		matcher := nonnative.NewDefMatcher()
+		if *cmdNonNativeLinkExecTemplatePath != "" {
+			osFs := os.DirFS(*cmdNonNativeLinkExecTemplatePath)
+			err = matcher.LoadDefinitions(osFs)
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+		} else {
+			err = matcher.LoadEmbeddedDefinitions()
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+		}
+
+		spec, err := matcher.ExecuteNamed(flattenedLink, *cmdNonNativeLinkExecInputName)
+		if err != nil {
+			base.Fatalf("%s", err)
+		}
+		io.Copy(os.Stdout, bytes.NewReader(spec))
+	},
+}