sqlx/sqlx-cli/src/database.rs
Austin Bonander bc3e70545b
sqlite improvements (#1965)
* use direct blocking calls for SQLite in `sqlx_macros`
    * this also ensures the database is closed properly, cleaning up tempfiles
* don't send `PRAGMA journal_mode` unless set
    * this previously defaulted to WAL mode which is a permanent setting
      on databases which doesn't necessarily apply to all use-cases
    * changing into or out of WAL mode acquires an exclusive lock on the database
      that can't be waited on by `sqlite3_busy_timeout()`
    * for consistency, `sqlx-cli` commands that create databases will still
      create SQLite databases in WAL mode; added a flag to disable this.
* in general, don't send `PRAGMA`s unless different than default
    * we were sending a bunch of `PRAGMA`s with their default values just to enforce
      an execution order on them, but we can also do this by inserting empty slots
      for their keys into the `IndexMap`
* add error code to `SqliteError` printout
* document why `u64` is not supported
2022-07-12 13:59:37 -07:00

82 lines
2.4 KiB
Rust

use crate::migrate;
use crate::opt::ConnectOpts;
use console::style;
use promptly::{prompt, ReadlineError};
use sqlx::any::Any;
use sqlx::migrate::MigrateDatabase;
pub async fn create(connect_opts: &ConnectOpts) -> anyhow::Result<()> {
// NOTE: only retry the idempotent action.
// We're assuming that if this succeeds, then any following operations should also succeed.
let exists = crate::retry_connect_errors(connect_opts, Any::database_exists).await?;
if !exists {
#[cfg(feature = "sqlite")]
sqlx::sqlite::CREATE_DB_WAL.store(
connect_opts.sqlite_create_db_wal,
std::sync::atomic::Ordering::Release,
);
Any::create_database(&connect_opts.database_url).await?;
}
Ok(())
}
pub async fn drop(connect_opts: &ConnectOpts, confirm: bool) -> anyhow::Result<()> {
if confirm && !ask_to_continue(connect_opts) {
return Ok(());
}
// NOTE: only retry the idempotent action.
// We're assuming that if this succeeds, then any following operations should also succeed.
let exists = crate::retry_connect_errors(connect_opts, Any::database_exists).await?;
if exists {
Any::drop_database(&connect_opts.database_url).await?;
}
Ok(())
}
pub async fn reset(
migration_source: &str,
connect_opts: &ConnectOpts,
confirm: bool,
) -> anyhow::Result<()> {
drop(connect_opts, confirm).await?;
setup(migration_source, connect_opts).await
}
pub async fn setup(migration_source: &str, connect_opts: &ConnectOpts) -> anyhow::Result<()> {
create(connect_opts).await?;
migrate::run(migration_source, connect_opts, false, false).await
}
fn ask_to_continue(connect_opts: &ConnectOpts) -> bool {
loop {
let r: Result<String, ReadlineError> = prompt(format!(
"Drop database at {}? (y/n)",
style(&connect_opts.database_url).cyan()
));
match r {
Ok(response) => {
if response == "n" || response == "N" {
return false;
} else if response == "y" || response == "Y" {
return true;
} else {
println!(
"Response not recognized: {}\nPlease type 'y' or 'n' and press enter.",
response
);
}
}
Err(e) => {
println!("{}", e);
return false;
}
}
}
}