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Add SQLX_OFFLINE env variable to force metadata usage

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This commit is contained in:
Jonas Platte 2020-07-16 16:59:11 +02:00 committed by Ryan Leckey
parent f75891725f
commit 4c394de70b
2 changed files with 20 additions and 5 deletions
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9
sqlx-cli/README.md
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@ -51,7 +51,8 @@ $ sqlx migration run
Compares the migration history of the running database against the `migrations/` folder and runs
any scripts that are still pending.
#### Enable building in "offline" mode with `query!()`
#### Enable building in "offline" mode with `query!()`
Note: must be run as `cargo sqlx`.
```bash
@ -74,3 +75,9 @@ cargo sqlx prepare --check
```
Exits with a nonzero exit status if the data in `sqlx-data.json` is out of date with the current
database schema and queries in the project. Intended for use in Continuous Integration.
#### Force building in offline mode
To make sure an accidentally-present `DATABASE_URL` environment variable or `.env` file does not
result in `cargo build` (trying to) access the database, you can set the `SQLX_OFFLINE` environment
variable.

16
sqlx-macros/src/query/mod.rs
View file

@ -35,11 +35,14 @@ pub fn expand_input(input: QueryMacroInput) -> crate::Result<TokenStream> {
}
// if `dotenv` wasn't initialized by the above we make sure to do it here
match dotenv::var("DATABASE_URL").ok() {
Some(db_url) => expand_from_db(input, &db_url),
match (
dotenv::var("SQLX_OFFLINE").is_ok(),
dotenv::var("DATABASE_URL"),
) {
(false, Ok(db_url)) => expand_from_db(input, &db_url),
#[cfg(feature = "offline")]
None => {
_ => {
let data_file_path = std::path::Path::new(&manifest_dir).join("sqlx-data.json");
if data_file_path.exists() {
@ -54,7 +57,12 @@ pub fn expand_input(input: QueryMacroInput) -> crate::Result<TokenStream> {
}
#[cfg(not(feature = "offline"))]
None => Err("`DATABASE_URL` must be set to use query macros".into()),
(true, _) => {
Err("The cargo feature `offline` has to be enabled to use `SQLX_OFFLINE`".into())
}
#[cfg(not(feature = "offline"))]
(false, Err(_)) => Err("`DATABASE_URL` must be set to use query macros".into()),
}
}