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create an empty file even in case of MetadataKind::None

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This commit is contained in:
Yoshiki Matsuda 2022-05-30 00:46:12 +09:00
parent 7eb64b4901
commit 03de5c4a14
1 changed files with 16 additions and 6 deletions
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22
compiler/rustc_metadata/src/fs.rs
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@ -68,13 +68,24 @@ pub fn encode_and_write_metadata(
.unwrap_or_else(|err| tcx.sess.fatal(&format!("couldn't create a temp dir: {}", err)));
let metadata_tmpdir = MaybeTempDir::new(metadata_tmpdir, tcx.sess.opts.cg.save_temps);
let metadata_filename = metadata_tmpdir.as_ref().join(METADATA_FILENAME);
let need_metadata_file = tcx.sess.opts.output_types.contains_key(&OutputType::Metadata);
let metadata = match metadata_kind {
MetadataKind::None => {
if tcx.sess.opts.json_artifact_notifications {
tcx.sess
.parse_sess
.span_diagnostic
.emit_artifact_notification(&out_filename, "metadata");
if need_metadata_file {
// Though creating the empty file here seems to be meaningless, cargo expects it.
if let Err(e) = std::fs::File::create(&out_filename) {
tcx.sess.fatal(&format!(
"failed to create the file {}: {}",
out_filename.display(),
e
));
}
if tcx.sess.opts.json_artifact_notifications {
tcx.sess
.parse_sess
.span_diagnostic
.emit_artifact_notification(&out_filename, "metadata");
}
}
EncodedMetadata::empty()
}
@ -83,7 +94,6 @@ pub fn encode_and_write_metadata(
let _prof_timer = tcx.sess.prof.generic_activity("write_crate_metadata");
let need_metadata_file = tcx.sess.opts.output_types.contains_key(&OutputType::Metadata);
let (metadata_filename, metadata_tmpdir) = if need_metadata_file {
if let Err(e) = non_durable_rename(&metadata_filename, &out_filename) {
tcx.sess.fatal(&format!("failed to write {}: {}", out_filename.display(), e));