sqlx-cli `prepare` command requires a database URL in offline mode

[tosti007]

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Description

It seems with the release of sqlx-cli 0.9.0 the prepare subcommand always requires a database url to be set, even when SQLX_OFFLINE=true is set.

Reproduction steps

1. Create a new rust project
2. Run

$ env SQLX_OFFLINE=true cargo sqlx prepare --check                                                                     Found `sqlx.toml` in current directory; reading...
error: `--database-url` or `DATABASE_URL` must be set

SQLx version

0.9.0

Enabled SQLx features

default

Database server and version

any

Operating system

linux

Rust version

rustc 1.96.0 (ac68faa20 2026-05-25)