add cli flag to add missing mods in enabled state

cmd/fml/fml.go

@@ -16,7 +16,7 @@ import (
 type config struct {
 	modsdir, infile, outfile          string
 	mods                              modlist.Modlist
-	clobber, addmissing      bool
+	clobber, addmissing, missingstate bool
 }
 
 var cfg config
@@ -79,6 +79,12 @@ func main() {
 				Required: false,
 				Usage:    "don't automatically add mods missing from infile",
 			},
+			&cli.BoolFlag{
+				Name:     "enable-missing",
+				Aliases:  []string{"e"},
+				Required: false,
+				Usage:    "Missing mods are added in enabled state",
+			},
 		},
 		Before: func(ctx *cli.Context) error {
 			// Setup logger
@@ -93,6 +99,7 @@ func main() {
 			// Bool flags
 			cfg.clobber = ctx.Bool("clobber")
 			cfg.addmissing = !ctx.Bool("no-add-missing")
+			cfg.missingstate = ctx.Bool("enable-missing")
 
 			// Deal with in/out file
 			var in = ctx.String("infile")
@@ -124,7 +131,7 @@ func main() {
 			}
 
 			if cfg.addmissing {
-				err = modlist.AddModsNotInList(cfg.modsdir, &cfg.mods)
+				err = modlist.AddModsNotInList(cfg.modsdir, &cfg.mods, cfg.missingstate)
 				if err != nil {
 					return err
 				}

internal/modlist/modlist.go

@@ -152,7 +152,7 @@ func ReadFromFile(filename string) (Modlist, error) {
 }
 
 // AddModsNotInList finds mod archives in the mod folder that aren't in the modlist, and adds them.
-func AddModsNotInList(modsdir string, mods *Modlist) error {
+func AddModsNotInList(modsdir string, mods *Modlist, state bool) error {
 	r := regexp.MustCompile(fileRegex)
 
 	files, err := os.ReadDir(modsdir)
@@ -167,10 +167,10 @@ func AddModsNotInList(modsdir string, mods *Modlist) error {
 			version := groups[0][2]
 
 			if !mods.HasMod(name) {
-				log.Info("Found %s not in modlist, adding v%s in disabled state.", name, version)
+				log.Infof("Found %s not in modlist, adding v%s in disabled state.", name, version)
 				mods.Mods = append(mods.Mods, Mod{
 					Name:    name,
-					Enabled: false,
+					Enabled: state,
 				})
 			}
 		}