Add enablemod and disablemod commands

README.asciidoc

@@ -242,6 +242,22 @@ instances.
     Runs the `uninstallmod` command followed by the `installmod`
     command
 
+`enablemod <modnum>`::
+`enablemod <modnum>=<modtype>`::
+    Enables the `arkmod_<modnum>` setting in the instance config.
+    modtype defaults to `game`.
+    Mod types:
+
+    `game`;;
+        A mod in `GameModIds`
+
+    `map`;;
+        The `MapModId` mod
+
+    `tc`;;
+    `totalconversion`;;
+        The `TotalConversionMod` mod
+
 `backup`::
     Backs up the saved world and game config files to a compressed
     tar file in the backups directory specified in the config
@@ -495,6 +511,30 @@ the global config.
     the `-StructureDestructionTag=DestroySwampSnowStructures`
     option.
 
+`arkmod_<modnum>=<modtype>`::
+    Specifies a mod that can be enabled or disabled using
+    `enablemod` and `disablemod`.  Note that mod ids specified
+    using these options are in addition to those specified directly
+    in the `ark_GameModIds` option, and override those specified in the
+    `ark_MapModId`, `serverMapMod` and `ark_TotalConversionMod`
+    options.  Options are processed in the order they are specified
+    in the instance config file, and `arkmod_*` options in the
+    common config file are not applied.
+    Mod types:
+
+    `game`;;
+        A mod to be specified in `GameModIds`
+
+    `map`;;
+        The mod to be specified in `MapModId`
+
+    `tc`;;
+    `totalconversion`;;
+        The mod to be specified in `TotalConversionMod`
+
+    `disabled`;;
+        A disabled mod
+
 Common ARK options
 ~~~~~~~~~~~~~~~~~~
 

tools/arkmanager

@@ -1843,6 +1843,37 @@ doUninstallMod(){
   fi
 }
 
+#
+# Enables a mod in the config
+#
+doEnableMod(){
+  local modid="${1%=*}"
+  local modtype="${1#*=}"
+  if [ "$modtype" = "$1" ]; then
+    modtype=game
+  fi
+  local modvar="arkmod_${modid}"
+  if [ -n "${!modvar}" ]; then
+    sed -i "s|^\(${modvar}\)=[^ ]*|\1=${modtype}|" "$configfile"
+  else
+    echo "${modvar}=${modtype}" >>"$configfile"
+  fi
+}
+
+#
+# Disable a mod in the config
+#
+doDisableMod(){
+  local modid="$1"
+  local modvar="arkmod_$modid"
+  if [ "$ark_GameModIds" = *"$modid"* ]; then
+    sed -i "s|^\(ark_GameModIds=\(\|[\"']\)\(\|[^\"' ]*,\)\)${modid},*|\1|" "$configfile"
+  fi
+  if [ -n "$modvar" ]; then
+    sed -i "s|^\(arkmod_${modid}\)=[^ ]*|\1=disabled|" "$configfile"
+  fi
+}
+
 #
 # Removes mod from steamcmd workshop directory
 #
@@ -2506,6 +2537,12 @@ main(){
         installmod)
           doInstallMod "${args[@]}"
         ;;
+        enablemod)
+          doEnableMod "${args[@]}"
+        ;;
+        disablemod)
+          doDisableMod "${args[@]}"
+        ;;
         installmods)
           doInstallAllMods
         ;;