Revert gmbuffer.js, improved tags a bit more, some more pagination work

commands/tags.js

@@ -12,7 +12,8 @@ exports.run = async (message, args) => {
       if (args[1] === undefined) return `${message.author.mention}, you need to provide the name of the tag you want to add!`;
       if (blacklist.includes(args[1].toLowerCase())) return `${message.author.mention}, you can't make a tag with that name!`;
       if (tags.has(args[1].toLowerCase())) return `${message.author.mention}, this tag already exists!`;
-      await setTag(args.slice(2).join(" "), args[1].toLowerCase(), message, guild);
+      var result = await setTag(args.slice(2).join(" "), args[1].toLowerCase(), message, guild);
+      if (result) return result;
       return `${message.author.mention}, the tag \`${args[1].toLowerCase()}\` has been added!`;
     case "delete":
     case "remove":
@@ -66,13 +67,18 @@ exports.run = async (message, args) => {
 };
 
 const setTag = async (content, name, message, guild) => {
-  if (content === undefined || content.length === 0) return `${message.author.mention}, you need to provide the content of the tag!`;
+  if ((!content || content.length === 0) && message.attachments.length === 0) return `${message.author.mention}, you need to provide the content of the tag!`;
-  if (message.attachments.length !== 0) {
+  if (message.attachments.length !== 0 && content) {
     guild.tags.set(name, { content: `${content} ${message.attachments[0].url}`, author: message.author.id });
+    await guild.save();
+  } else if (message.attachments.length !== 0) {
+    guild.tags.set(name, { content: message.attachments[0].url, author: message.author.id });
+    await guild.save();
   } else {
     guild.tags.set(name, { content: content, author: message.author.id });
-  }
     await guild.save();
+  }
+  return;
 };
 
 exports.aliases = ["t", "tag", "ta"];

utils/gmbuffer.js

@@ -1,9 +1,10 @@
 // workaround for a gm bug where it doesn't output buffers properly
 // https://github.com/aheckmann/gm/issues/572#issuecomment-293768810
-module.exports = async (data, format) => {
+module.exports = (data, format) => {
+  return new Promise((resolve, reject) => {
     if (format) {
       data.stream(format, (err, stdout, stderr) => {
-      if (err) throw err;
+        if (err) return reject(err);
         const chunks = [];
         stdout.on("data", (chunk) => {
           chunks.push(chunk);
@@ -11,15 +12,15 @@ module.exports = async (data, format) => {
         // these are 'once' because they can and do fire multiple times for multiple errors,
         // but this is a promise so you'll have to deal with them one at a time
         stdout.once("end", () => {
-        return Buffer.concat(chunks);
+          resolve(Buffer.concat(chunks));
         });
         stderr.once("data", (data) => {
-        throw data;
+          reject(String(data));
         });
       });
     } else {
       data.stream((err, stdout, stderr) => {
-      if (err) throw err;
+        if (err) return reject(err);
         const chunks = [];
         stdout.on("data", (chunk) => {
           chunks.push(chunk);
@@ -27,11 +28,12 @@ module.exports = async (data, format) => {
         // these are 'once' because they can and do fire multiple times for multiple errors,
         // but this is a promise so you'll have to deal with them one at a time
         stdout.once("end", () => {
-        return Buffer.concat(chunks);
+          resolve(Buffer.concat(chunks));
         });
         stderr.once("data", (data) => {
-        throw data;
+          reject(String(data));
         });
       });
     }
+  });
 };

utils/pagination/pagination.js

@@ -45,6 +45,7 @@ const paginationEmbed = async (message, pages, timeout = 120000) => {
           if (manageMessages) msg.removeReaction("▶", userID);
           break;
         case "🗑":
+          reactionCollector.emit("end");
           currentPage.delete();
           return;
         default:
@@ -52,7 +53,7 @@ const paginationEmbed = async (message, pages, timeout = 120000) => {
       }
     }
   });
-  reactionCollector.on("end", () => {
+  reactionCollector.once("end", () => {
     try {
       currentPage.removeReactions();
     } catch (e) {