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cargo-pgrx: build Postgres in parallel during cargo pgrx init #2291

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cargo-pgrx: build Postgres in parallel during cargo pgrx init #2291

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03b4661
cargo-pgrx: build Postgres in parallel during `cargo pgrx init`
philippemnoel May 15, 2026
5564934
cargo fmt
philippemnoel May 15, 2026
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27 changes: 17 additions & 10 deletions cargo-pgrx/src/command/init.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -88,20 +88,23 @@ pub(crate) struct Init {
jobserver: OnceLock<jobslot::Client>,
}

impl Init {
/// Resolve the make job count: explicit `--jobs`, else the host's
/// available parallelism, else 1. Used to size the jobserver and to
/// pass `-jN` to `make` (without `-jN`, GNU make ignores the jobserver
/// auth in MAKEFLAGS and stays serial).
fn resolved_jobs(&self) -> usize {
self.jobs
.or_else(|| std::thread::available_parallelism().map(NonZeroUsize::get).ok())
.unwrap_or(1)
}
}

impl CommandExecute for Init {
#[tracing::instrument(level = "error", skip(self))]
fn execute(self) -> eyre::Result<()> {
self.jobserver
.set(
jobslot::Client::new(
self.jobs
.or_else(|| {
std::thread::available_parallelism().map(NonZeroUsize::get).ok()
})
.unwrap_or(1),
)
.expect("failed to create jobserver"),
)
.set(jobslot::Client::new(self.resolved_jobs()).expect("failed to create jobserver"))
.unwrap();

let mut versions = HashMap::new();
Expand Down Expand Up @@ -497,6 +500,8 @@ fn make_postgres(pg_config: &PgConfig, pgdir: &Path, init: &Init) -> eyre::Resul
let mut command = std::process::Command::new("make");

command
.arg("-j")
.arg(init.resolved_jobs().to_string())
.arg("world-bin")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
Expand Down Expand Up @@ -541,6 +546,8 @@ fn make_install_postgres(version: &PgConfig, pgdir: &Path, init: &Init) -> eyre:
let mut command = std::process::Command::new("make");

command
.arg("-j")
.arg(init.resolved_jobs().to_string())
.arg("install-world-bin")
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::piped())
Expand Down
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