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Do not unconditionally succeed RUSTC_WRAPPER checks when run by build scripts #13010

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merged 1 commit into from Aug 13, 2022
Merged

Do not unconditionally succeed RUSTC_WRAPPER checks when run by build scripts #13010

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7 changes: 6 additions & 1 deletion crates/rust-analyzer/src/bin/rustc_wrapper.rs
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Expand Up @@ -17,6 +17,11 @@ pub(crate) fn run_rustc_skipping_cargo_checking(
rustc_executable: OsString,
args: Vec<OsString>,
) -> io::Result<ExitCode> {
// `CARGO_CFG_TARGET_ARCH` is only set by cargo when executing build scripts
// We don't want to exit out checks unconditionally with success if a build
// script tries to invoke checks themselves
// See https://github.com/rust-lang/rust-analyzer/issues/12973 for context
let not_invoked_by_build_script = std::env::var_os("CARGO_CFG_TARGET_ARCH").is_none();
let is_cargo_check = args.iter().any(|arg| {
let arg = arg.to_string_lossy();
// `cargo check` invokes `rustc` with `--emit=metadata` argument.
Expand All @@ -29,7 +34,7 @@ pub(crate) fn run_rustc_skipping_cargo_checking(
// The default output filename is CRATE_NAME.rmeta.
arg.starts_with("--emit=") && arg.contains("metadata") && !arg.contains("link")
});
if is_cargo_check {
if not_invoked_by_build_script && is_cargo_check {
return Ok(ExitCode(Some(0)));
}
run_rustc(rustc_executable, args)
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