tree 6280a1b82494aea97b3cf1ca1dc3954db6ae8fe7
parent 79fa9926bb71f64b9e7daad7d353278a1af3ce53
author Brian Norris <briannorris@chromium.org> 1684354001 -0700
committer Robert Kolchmeyer <rkolchmeyer@google.com> 1687477486 -0700

scripts: cros_setup_toolchains: Stash temporary structure at |root|

/tmp is moving to a different mount than root (/), so hard links from
root to /tmp will stop working. It'd be rather involved to rewrite this
script to avoid hard links without sacrificing a ton of duplicate I/O
(copying files instead).

But this step is only for SDK/toolchain builders, which necessarily will
perform read/write operations on the SDK. So the concerns that are
driving the SDK-vs-state separation are less relevant here.

BUG=b:282231712
TEST=`sudo cros_setup_toolchains --debug --create-packages \
	   --output-dir /tmp/toolchain-pkgs` with /tmp as a distinct
     mount from /
TEST=chromiumos-sdk-tryjob

Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/4545343
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Brian Norris <briannorris@chromium.org>
(cherry picked from commit ca274dd7eff8fe212acebc1aff76c10698881d47)
Change-Id: I6142684e6bcaa7713283d1a6ed34614979c6c72c