tree c9348179152f84aed1607b07f196171d4de93f95
parent 9d5bd99622821e4db762e0230b1fd8434e4e4bdd
author David Fang <fangism@fuchsia.infra.roller.google.com> 1715336096 +0000
committer Copybara-Service <copybara-worker@google.com> 1715336198 -0700

[roll] Roll fuchsia [rbe][rust] Transform args in rspfiles

For dep-scanning, use .rmeta files if they exist,
so that full .rlibs do not need to be downloaded.

Now that --extern args can appear inside rspfiles,
we need to transform them for the purposes of dep-scanning
when using only rmeta files.

e.g. '--extern foolib=path/to/foolib.rlib' becomes
     '--extern foolib=path/to/foolib.rmeta'

Auxiliary rspfiles are written next to their original copies
and the dep-scanning command (and affected rspfiles)
reference these modified rspfiles.  (This can happen recursively.)

The auxiliary rspfiles are cleaned-up, but can be examined with
--save-temps.

Original-Bug: 338256510
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1044458
Original-Revision: 696eb5169b1fd52dd255f76583fb74cad1649694
GitOrigin-RevId: ffb4b788222c4fe81395fe104721b146f9513cb9
Change-Id: If0f1153df69492da4f833c0b239b0a5dfadd8437