投稿やメッセージなどに添付されていないドライブのファイルをすべて削除するツールを実装

cli/clean-drive.js

+const sequential = require('promise-sequential');
+const { default: DriveFile, deleteDriveFile } = require('../built/models/drive-file');
+const { default: Note } = require('../built/models/note');
+const { default: MessagingMessage } = require('../built/models/messaging-message');
+const { default: User } = require('../built/models/user');
+
+async function main() {
+	const promiseGens = [];
+
+	const count = await DriveFile.count({});
+
+	let prev;
+
+	for (let i = 0; i < count; i++) {
+		promiseGens.push(() => new Promise(async (res, rej) => {
+			const file = await DriveFile.findOne(prev ? {
+				_id: { $gt: prev._id }
+			} : {}, {
+				sort: {
+					_id: 1
+				}
+			});
+
+			prev = file;
+
+			console.log(`scanning ${file._id}`);
+
+			const attachingUsersCount = await User.count({
+				$or: [{
+					avatarId: file._id
+				}, {
+					bannerId: file._id
+				}]
+			}, { limit: 1 });
+			if (attachingUsersCount !== 0) return res();
+
+			const attachingNotesCount = await Note.count({
+				mediaIds: file._id
+			}, { limit: 1 });
+			if (attachingNotesCount !== 0) return res();
+
+			const attachingMessagesCount = await MessagingMessage.count({
+				fileId: file._id
+			}, { limit: 1 });
+			if (attachingMessagesCount !== 0) return res();
+
+			console.log(`deleting ${file._id}`);
+
+			deleteDriveFile(file).then(res).catch(rej);
+		}));
+	}
+
+	return await sequential(promiseGens);
+}
+
+main().then(console.dir).catch(console.error);

package.json

@@ -165,6 +165,7 @@
 		"os-utils": "0.0.14",
 		"progress-bar-webpack-plugin": "1.11.0",
 		"prominence": "0.2.0",
+		"promise-sequential": "^1.1.1",
 		"pug": "2.0.3",
 		"punycode": "2.1.0",
 		"qrcode": "1.2.0",