bjoernager/rust
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Auto merge of #83846 - torhovland:issue-10971, r=davidtwco

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Added the --temps-dir option

Fixes #10971.

The new `--temps-dir` option puts intermediate files in a user-specified directory. This provides a fix for the issue where parallel invocations of rustc would overwrite each other's intermediate files.

No files are kept in the intermediate directory unless `-C save-temps=yes`.

If additional files are specifically requested using `--emit asm,llvm-bc,llvm-ir,obj,metadata,link,dep-info,mir`, these will be put in the output directory rather than the intermediate directory.

This is a backward-compatible change, i.e. if `--temps-dir` is not specified, the behavior is the same as before.
This commit is contained in:
bors 2021-11-11 02:52:32 +00:00
commit 9dbbbb12c0
9 changed files with 72 additions and 5 deletions
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8
compiler/rustc_interface/src/passes.rs
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@ -692,6 +692,7 @@ pub fn prepare_outputs(
&compiler.input,
&compiler.output_dir,
&compiler.output_file,
&compiler.temps_dir,
&krate.attrs,
sess,
);
@ -722,6 +723,13 @@ pub fn prepare_outputs(
}
}
if let Some(ref dir) = compiler.temps_dir {
if fs::create_dir_all(dir).is_err() {
sess.err("failed to find or create the directory specified by `--temps-dir`");
return Err(ErrorReported);
}
}
write_out_deps(sess, boxed_resolver, &outputs, &output_paths);
let only_dep_info = sess.opts.output_types.contains_key(&OutputType::DepInfo)