How to execute data transformation scripts (like password encryption) during Prisma migration?

I'm using Prisma with MySQL. My current database stores passwords in plain text, and I need to migrate them to bcrypt hashes.

When deploying this change via prisma migrate dev, I need to:

• Update the schema to accommodate hashed passwords.
• Transform existing plaintext passwords to bcrypt hashes.

Question:

Does Prisma provide a way to run custom scripts (e.g., a TypeScript function to hash passwords) during the migration process?

If not, what’s the recommended approach?

This is my schema:

generator client {
  provider = "prisma-client-js"
}
datasource db {
  provider = "mysql"
  url      = env("DATABASE_URL")
}
model User {
  id        String    @id @unique @db.Char(32)  // unsigned UUID
  name      String    @unique @db.VarChar(16)
  password  String    @db.VarChar(32)
//hashedPassword String @db.VarChar(60)
  articles  Article[]
  createdAt DateTime  @default(now())
}
// more...