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Refactor sqllogictest to extract postgres functionality into a separa…
…te file. Removed dependency on once_cell in favour of LazyLock.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| #![cfg(feature = "postgres")] | ||
|
|
||
| use crate::Options; | ||
| use datafusion_common::Result; | ||
| use log::info; | ||
| use std::env::set_var; | ||
| use std::future::Future; | ||
| use std::sync::LazyLock; | ||
| use std::{env, thread}; | ||
| use testcontainers::core::IntoContainerPort; | ||
| use testcontainers::runners::AsyncRunner; | ||
| use testcontainers::ImageExt; | ||
| use testcontainers_modules::postgres; | ||
| use tokio::sync::mpsc::{UnboundedReceiver, UnboundedSender}; | ||
| use tokio::sync::{mpsc, Mutex}; | ||
| use ContainerCommands::{FetchHost, FetchPort}; | ||
|
|
||
| #[derive(Debug)] | ||
| pub enum ContainerCommands { | ||
| FetchHost, | ||
| FetchPort, | ||
| Stop, | ||
| } | ||
|
|
||
| pub struct Channel<T> { | ||
| pub tx: UnboundedSender<T>, | ||
| pub rx: Mutex<UnboundedReceiver<T>>, | ||
| } | ||
|
|
||
| pub fn channel<T>() -> Channel<T> { | ||
| let (tx, rx) = mpsc::unbounded_channel(); | ||
| Channel { | ||
| tx, | ||
| rx: Mutex::new(rx), | ||
| } | ||
| } | ||
|
|
||
| pub fn execute_blocking<F: Future>(f: F) { | ||
| tokio::runtime::Builder::new_current_thread() | ||
| .enable_all() | ||
| .build() | ||
| .unwrap() | ||
| .block_on(f); | ||
| } | ||
|
|
||
| static POSTGRES_IN: LazyLock<Channel<ContainerCommands>> = LazyLock::new(channel); | ||
| static POSTGRES_HOST: LazyLock<Channel<String>> = LazyLock::new(channel); | ||
| static POSTGRES_PORT: LazyLock<Channel<u16>> = LazyLock::new(channel); | ||
| static POSTGRES_STOPPED: LazyLock<Channel<()>> = LazyLock::new(channel); | ||
|
|
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| pub async fn initialize_postgres_container(options: &Options) -> Result<()> { | ||
| let start_pg_database = options.postgres_runner && !is_pg_uri_set(); | ||
| if start_pg_database { | ||
| info!("Starting postgres db ..."); | ||
|
|
||
| thread::spawn(|| { | ||
| execute_blocking(start_postgres( | ||
| &POSTGRES_IN, | ||
| &POSTGRES_HOST, | ||
| &POSTGRES_PORT, | ||
| &POSTGRES_STOPPED, | ||
| )) | ||
| }); | ||
|
|
||
| POSTGRES_IN.tx.send(FetchHost).unwrap(); | ||
| let db_host = POSTGRES_HOST.rx.lock().await.recv().await.unwrap(); | ||
|
|
||
| POSTGRES_IN.tx.send(FetchPort).unwrap(); | ||
| let db_port = POSTGRES_PORT.rx.lock().await.recv().await.unwrap(); | ||
|
|
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| let pg_uri = format!("postgresql://postgres:postgres@{db_host}:{db_port}/test"); | ||
| info!("Postgres uri is {pg_uri}"); | ||
|
|
||
| set_var("PG_URI", pg_uri); | ||
| } else { | ||
| // close receiver | ||
| POSTGRES_IN.rx.lock().await.close(); | ||
| } | ||
|
|
||
| Ok(()) | ||
| } | ||
|
|
||
| pub async fn terminate_postgres_container() -> Result<()> { | ||
| if !POSTGRES_IN.tx.is_closed() { | ||
| println!("Stopping postgres db ..."); | ||
| POSTGRES_IN.tx.send(ContainerCommands::Stop).unwrap_or(()); | ||
| POSTGRES_STOPPED.rx.lock().await.recv().await; | ||
| } | ||
|
|
||
| Ok(()) | ||
| } | ||
|
|
||
| async fn start_postgres( | ||
| in_channel: &Channel<ContainerCommands>, | ||
| host_channel: &Channel<String>, | ||
| port_channel: &Channel<u16>, | ||
| stopped_channel: &Channel<()>, | ||
| ) { | ||
| info!("Starting postgres test container with user postgres/postgres and db test"); | ||
|
|
||
| let container = postgres::Postgres::default() | ||
| .with_user("postgres") | ||
| .with_password("postgres") | ||
| .with_db_name("test") | ||
| .with_mapped_port(16432, 5432.tcp()) | ||
| .with_tag("17-alpine") | ||
| .start() | ||
| .await | ||
| .unwrap(); | ||
| // uncomment this if you are running docker in docker | ||
| let host = "host.docker.internal".to_string(); | ||
| // let host = container.get_host().await.unwrap().to_string(); | ||
| let port = container.get_host_port_ipv4(5432).await.unwrap(); | ||
|
|
||
| let mut rx = in_channel.rx.lock().await; | ||
| while let Some(command) = rx.recv().await { | ||
| match command { | ||
| FetchHost => host_channel.tx.send(host.clone()).unwrap(), | ||
| FetchPort => port_channel.tx.send(port).unwrap(), | ||
| ContainerCommands::Stop => { | ||
| container.stop().await.unwrap(); | ||
| stopped_channel.tx.send(()).unwrap(); | ||
| rx.close(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fn is_pg_uri_set() -> bool { | ||
| match env::var("PG_URI") { | ||
| Ok(_) => true, | ||
| Err(_) => false, | ||
| } | ||
| } |
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