From bf7601fa8d2728969823fb5a6ce24ae47cf4a992 Mon Sep 17 00:00:00 2001 From: otofune Date: Tue, 7 Nov 2017 22:08:21 +0900 Subject: [PATCH] run parallely --- package.json | 1 + tools/migration/use-gridfs.js | 33 +++++++++++---------------------- 2 files changed, 12 insertions(+), 22 deletions(-) diff --git a/package.json b/package.json index cf291fe2b..96831a3c4 100644 --- a/package.json +++ b/package.json @@ -22,6 +22,7 @@ "format": "gulp format" }, "devDependencies": { + "@prezzemolo/zip": "0.0.3", "@types/bcryptjs": "2.4.1", "@types/body-parser": "1.16.7", "@types/chai": "4.0.4", diff --git a/tools/migration/use-gridfs.js b/tools/migration/use-gridfs.js index 106cbd388..228943f49 100644 --- a/tools/migration/use-gridfs.js +++ b/tools/migration/use-gridfs.js @@ -3,6 +3,7 @@ const { default: db } = require('../../built/db/mongodb') const { default: DriveFile, getGridFSBucket } = require('../../built/api/models/drive-file') const { Duplex } = require('stream') +const { default: zip } = require('@prezzemolo/zip') const writeToGridFS = (bucket, buffer, ...rest) => new Promise((resolve, reject) => { const writeStream = bucket.openUploadStreamWithId(...rest) @@ -45,30 +46,18 @@ const migrateToGridFS = async (doc) => { } async function main() { - let i = 0; + const count = await DriveFile.count({}); - const count = await db.get('drive_files').count({}); + const dop = Number.parseInt(process.argv[2]) || 5 - const iterate = async () => { - if (i == count) return true; - console.log(`${i} / ${count}`); - const doc = (await db.get('drive_files').find({}, { limit: 1, skip: i }))[0] - const res = await migrateToGridFS(doc); - if (!res) { - return false; - } else { - i++ - return await iterate(); - } - } - - const res = await iterate(); - - if (res) { - return 'ok'; - } else { - throw 'something happened'; - } + return zip( + 1, + async (time) => { + const doc = await DriveFile.find({}, { limit: dop, skip: time * dop }) + return Promise.all(doc.map(migrateToGridFS)) + }, + ((count - (count % dop)) / dop) + 1 + ) } main().then(console.dir).catch(console.error)