honor XTASK_BIN
in tools/install_*_prerequisites.sh
#5860
Merged
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Merging #5482 introduced breakage I didn't account for: being able to run
install_runner_prerequisites.sh
without having Cargo available, which is used by the a4x2 testbed. This change introduces theXTASK_BIN
environment variable which will be used instead ofcargo xtask
if set.The companion PR in a4x2 is https://github.com/oxidecomputer/testbed/pull/49/files.
Tested that all these work:
./tools/install_builder_prerequisites.sh -y
XTASK_BIN=target/debug/xtask ./tools/install_builder_prerequisites.sh -y
(after building xtask)XTASK_BIN=target/debug/nonexistent-file ./tools/install_builder_prerequisites.sh -y
(correctly fails with ENOENT)