68 lines
1.4 KiB
JavaScript
68 lines
1.4 KiB
JavaScript
// for Node.js interpret
|
|
|
|
const { default: DriveFile, getGridFSBucket } = require('../../built/api/models/drive-file')
|
|
const { default: zip } = require('@prezzemolo/zip')
|
|
|
|
const _gm = require('gm');
|
|
const gm = _gm.subClass({
|
|
imageMagick: true
|
|
});
|
|
|
|
const migrate = doc => new Promise(async (res, rej) => {
|
|
const bucket = await getGridFSBucket();
|
|
|
|
const readable = bucket.openDownloadStream(doc._id);
|
|
|
|
gm(readable)
|
|
.setFormat('ppm')
|
|
.resize(1, 1)
|
|
.toBuffer(async (err, buffer) => {
|
|
if (err) rej(err);
|
|
const r = buffer.readUInt8(buffer.length - 3);
|
|
const g = buffer.readUInt8(buffer.length - 2);
|
|
const b = buffer.readUInt8(buffer.length - 1);
|
|
|
|
const result = await DriveFile.update(doc._id, {
|
|
$set: {
|
|
'metadata.properties.average_color': [r, g, b]
|
|
}
|
|
})
|
|
|
|
res(result.ok === 1);
|
|
});
|
|
});
|
|
|
|
async function main() {
|
|
const query = {
|
|
contentType: {
|
|
$in: [
|
|
'image/png',
|
|
'image/jpeg'
|
|
]
|
|
}
|
|
}
|
|
|
|
const count = await DriveFile.count(query);
|
|
|
|
const dop = Number.parseInt(process.argv[2]) || 5
|
|
const idop = ((count - (count % dop)) / dop) + 1
|
|
|
|
return zip(
|
|
1,
|
|
async (time) => {
|
|
console.log(`${time} / ${idop}`)
|
|
const doc = await DriveFile.find(query, {
|
|
limit: dop, skip: time * dop
|
|
})
|
|
return Promise.all(doc.map(migrate))
|
|
},
|
|
idop
|
|
).then(a => {
|
|
const rv = []
|
|
a.forEach(e => rv.push(...e))
|
|
return rv
|
|
})
|
|
}
|
|
|
|
main().then(console.dir).catch(console.error)
|