Sharkey/tools/migration/nighthike/1.js

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// for Node.js interpret
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const { default: User } = require('../../../built/api/models/user');
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const { default: zip } = require('@prezzemolo/zip')
const migrate = async (user) => {
const result = await User.update(user._id, {
$set: {
'username': user.username.replace(/\-/g, '_'),
'username_lower': user.username_lower.replace(/\-/g, '_')
}
});
return result.ok === 1;
}
async function main() {
const count = await User.count({});
const dop = Number.parseInt(process.argv[2]) || 5
const idop = ((count - (count % dop)) / dop) + 1
return zip(
1,
async (time) => {
console.log(`${time} / ${idop}`)
const doc = await User.find({}, {
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)