diff options
| -rw-r--r-- | compiler/rustc_driver_impl/src/lib.rs | 13 | ||||
| -rw-r--r-- | compiler/rustc_middle/src/ty/context.rs | 5 |
2 files changed, 10 insertions, 8 deletions
diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index 21b9542d0e1..6fb01bf415a 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -64,6 +64,7 @@ use rustc_session::lint::{Lint, LintId}; use rustc_session::output::{CRATE_TYPES, collect_crate_types, invalid_output_for_target}; use rustc_session::{EarlyDiagCtxt, Session, config, filesearch}; use rustc_span::FileName; +use rustc_span::def_id::LOCAL_CRATE; use rustc_target::json::ToJson; use rustc_target::spec::{Target, TargetTuple}; use time::OffsetDateTime; @@ -392,14 +393,10 @@ pub fn run_compiler(at_args: &[String], callbacks: &mut (dyn Callbacks + Send)) } fn dump_feature_usage_metrics(tcxt: TyCtxt<'_>, metrics_dir: &Path) { - let output_filenames = tcxt.output_filenames(()); - let mut metrics_file_name = std::ffi::OsString::from("unstable_feature_usage_metrics-"); - let mut metrics_path = output_filenames.with_directory_and_extension(metrics_dir, "json"); - let metrics_file_stem = - metrics_path.file_name().expect("there should be a valid default output filename"); - metrics_file_name.push(metrics_file_stem); - metrics_path.pop(); - metrics_path.push(metrics_file_name); + let hash = tcxt.crate_hash(LOCAL_CRATE); + let crate_name = tcxt.crate_name(LOCAL_CRATE); + let metrics_file_name = format!("unstable_feature_usage_metrics-{crate_name}-{hash}.json"); + let metrics_path = metrics_dir.join(metrics_file_name); if let Err(error) = tcxt.features().dump_feature_usage_metrics(metrics_path) { // FIXME(yaahc): once metrics can be enabled by default we will want "failure to emit // default metrics" to only produce a warning when metrics are enabled by default and emit diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 1efe36a0910..162ca1f4af8 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1807,10 +1807,15 @@ impl<'tcx> TyCtxt<'tcx> { // - needs_metadata: for putting into crate metadata. // - instrument_coverage: for putting into coverage data (see // `hash_mir_source`). + // - metrics_dir: metrics use the strict version hash in the filenames + // for dumped metrics files to prevent overwriting distinct metrics + // for similar source builds (may change in the future, this is part + // of the proof of concept impl for the metrics initiative project goal) cfg!(debug_assertions) || self.sess.opts.incremental.is_some() || self.needs_metadata() || self.sess.instrument_coverage() + || self.sess.opts.unstable_opts.metrics_dir.is_some() } #[inline] |