tornado-core/downloadKeys.js

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const axios = require('axios')
const path = require('path')
const fs = require('fs')
const files = ['withdraw.json', 'withdraw_proving_key.bin', 'Verifier.sol', 'withdraw_verification_key.json']
const circuitsPath = 'build/circuits'
const contractsPath = 'build/contracts'
async function downloadFile({ url, path }) {
const writer = fs.createWriteStream(path)
const response = await axios({
url,
method: 'GET',
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responseType: 'stream',
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})
response.data.pipe(writer)
return new Promise((resolve, reject) => {
writer.on('finish', resolve)
writer.on('error', reject)
})
}
async function main() {
const release = await axios.get('https://api.github.com/repos/tornadocash/tornado-core/releases/latest')
const { assets } = release.data
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if (!fs.existsSync(circuitsPath)) {
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fs.mkdirSync(circuitsPath, { recursive: true })
fs.mkdirSync(contractsPath, { recursive: true })
}
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for (let asset of assets) {
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if (files.includes(asset.name)) {
console.log(`Downloading ${asset.name} ...`)
await downloadFile({
url: asset.browser_download_url,
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path: path.resolve(__dirname, circuitsPath, asset.name),
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})
}
}
}
main()