Re-Introspection: introspect --url outputs additional lines which make output result unusable

[janpio]

In Introspection CI we use introspect --print to get the schema output in the command line instead of it being written to a file. When using Re-Introspection, so with an existing schema file (e.g. to be able to use preview features) this seems to also output 2 additional lines, which make it impossible to just pipe the output somewhere:

λ npx prisma introspect --url "postgresql://prisma:qd58r...tk@introspect...bj.eu-west-1.rds.amazonaws.com:5432/ara...ice?schema=public" --print
Prisma schema loaded from schema.prisma
Datasource "db"
generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["referentialActions"]
}

datasource db {
  provider = "postgresql"
  url      = "postgresql://prisma:qd58rcCywPRS4Stk@introspection-ci-postgres-public.clfeqqifnebj.eu-west-1.rds.amazonaws.com:5432/aragon-notification-service?schema=public"
}

model eventsources {
  eventsource_id   Int             @id @default(autoincrement())
  created_at       DateTime?       @default(now()) @db.Timestamptz(6)
  enabled          Boolean         @default(true)
  contract_address String          @db.VarChar(255)
  kernel_address   String          @db.VarChar(255)
  ...

[janpio]

Current workaround:
sed -e /'Prisma schema loaded from schema.prisma'/d -i schema.prisma && sed -e /'Datasource "db"'/d -i schema.prisma before using and validating the file.

[Jolg42]

Looks like we could fix this by only outputting the scheme when --print is passed.