50 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // for Node.js interpret
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| 
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| const { default: User } = require('../built/models/user');
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| const { default: Following } = require('../built/models/following');
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| const { default: zip } = require('@prezzemolo/zip')
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| 
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| const migrate = async (following) => {
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| 	const follower = await User.findOne({ _id: following.followerId });
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| 	const followee = await User.findOne({ _id: following.followeeId });
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| 	const result = await Following.update(following._id, {
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| 		$set: {
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| 			stalk: true,
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| 			_follower: {
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| 				host: follower.host,
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| 				inbox: follower.host != null ? follower.inbox : undefined
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| 			},
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| 			_followee: {
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| 				host: followee.host,
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| 				inbox: followee.host != null ? followee.inbox : undefined
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| 			}
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| 		}
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| 	});
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| 	return result.ok === 1;
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| }
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| 
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| async function main() {
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| 	const count = await Following.count({});
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| 
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| 	const dop = Number.parseInt(process.argv[2]) || 5
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| 	const idop = ((count - (count % dop)) / dop) + 1
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| 
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| 	return zip(
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| 		1,
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| 		async (time) => {
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| 			console.log(`${time} / ${idop}`)
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| 			const doc = await Following.find({}, {
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| 				limit: dop, skip: time * dop
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| 			})
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| 			return Promise.all(doc.map(migrate))
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| 		},
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| 		idop
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| 	).then(a => {
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| 		const rv = []
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| 		a.forEach(e => rv.push(...e))
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| 		return rv
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| 	})
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| }
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| 
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| main().then(console.dir).catch(console.error)
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