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Make fork-off-substrate greate again #141

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s0me0ne-unkn0wn wants to merge 1 commit into from
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Make fork-off-substrate greate again #141

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24 changes: 21 additions & 3 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ require("dotenv").config();
const { ApiPromise } = require('@polkadot/api');
const { HttpProvider } = require('@polkadot/rpc-provider');
const { xxhashAsHex } = require('@polkadot/util-crypto');
const bjson = require('big-json');
const execFileSync = require('child_process').execFileSync;
const execSync = require('child_process').execSync;
const binaryPath = path.join(__dirname, 'data', 'binary');
Expand Down Expand Up @@ -48,7 +49,7 @@ const skippedModulesPrefix = ['System', 'Session', 'Babe', 'Grandpa', 'GrandpaFi

async function fixParachinStates (api, forkedSpec) {
const skippedKeys = [
api.query.parasScheduler.sessionStartBlock.key()
api.query.paraScheduler.sessionStartBlock.key()
];
for (const k of skippedKeys) {
delete forkedSpec.genesis.raw.top[k];
Expand Down Expand Up @@ -120,7 +121,17 @@ async function main() {
execSync(binaryPath + ` build-spec --chain ${forkChain} --raw > ` + forkedSpecPath);
}

let storage = JSON.parse(fs.readFileSync(storagePath, 'utf8'));
console.log(chalk.green('Parsing storage'));
let storage = await new Promise((resolve, reject) => {
fs.createReadStream(storagePath, 'utf8')
.pipe(bjson.createParseStream()
.on('data', function(data) {
resolve(data);
})
.on('error', function() {
reject();
}));
});
let originalSpec = JSON.parse(fs.readFileSync(originalSpecPath, 'utf8'));
let forkedSpec = JSON.parse(fs.readFileSync(forkedSpecPath, 'utf8'));

Expand Down Expand Up @@ -150,7 +161,14 @@ async function main() {
forkedSpec.genesis.raw.top['0x5c0d1176a568c1f92944340dbfed9e9c530ebca703c85910e7164cb7d1c9e47b'] = '0xd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d';
}

fs.writeFileSync(forkedSpecPath, JSON.stringify(forkedSpec, null, 4));
console.log(chalk.green('Writing forked spec (this may take a while)'));
await new Promise((resolve, reject) => {
bjson.createStringifyStream({ body: forkedSpec })
.pipe(fs.createWriteStream(forkedSpecPath)
.on('end', function() {
resolve();
}));
});

console.log('Forked genesis generated successfully. Find it at ./data/fork.json');
process.exit();
Expand Down
131 changes: 131 additions & 0 deletions package-lock.json
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1 change: 1 addition & 0 deletions package.json
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Expand Up @@ -25,6 +25,7 @@
"homepage": "https://github.com/maxsam4/fork-off-substrate#readme",
"dependencies": {
"@polkadot/api": "^6.8.1",
"big-json": "^3.2.0",
"chalk": "^4.1.2",
"cli-progress": "^3.9.1",
"dotenv": "^10.0.0"
Expand Down