chains/tools/schemaCheck.js

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const fs = require("fs")
const Ajv = require("ajv")
const ajv = new Ajv()
const schema = require("./schema/chainSchema.json")
const chainFiles = fs.readdirSync("../_data/chains/")
// https://chainagnostic.org/CAIPs/caip-2
const parseChainId = (chainId) =>
/^(?<namespace>[-a-z0-9]{3,8})-(?<reference>[-a-zA-Z0-9]{1,32})$/u.exec(
chainId
)
const filesWithErrors = []
for (const chainFile of chainFiles) {
const fileLocation = `../_data/chains/${chainFile}`
const fileData = fs.readFileSync(fileLocation, "utf8")
const fileDataJson = JSON.parse(fileData)
const fileName = chainFile.split(".")[0]
const parsedChainId = parseChainId(fileName)?.groups
const chainIdFromFileName = parsedChainId?.reference
if (chainIdFromFileName != fileDataJson.chainId) {
throw new Error(`File Name does not match with ChainID in ${chainFile}`)
}
const valid = ajv.validate(schema, fileDataJson)
if (!valid) {
console.error(ajv.errors)
filesWithErrors.push(chainFile)
}
}
if (filesWithErrors.length > 0) {
throw new Error(
`Invalid JSON Schema in ${
filesWithErrors.length
} files at ${filesWithErrors.join(",")}`
)
}