Build script for testing cargo pipelining

build.sh

#!/usr/bin/env sh

# Switch to the nightly builds
rustup default nightly
rustc -V
cargo -V

# Baseline runs without pipelining
unset CARGO_BUILD_PIPELINING
echo -n "Initial run to populate ccache..."
./mach -l build.log build > /dev/null
echo "done"

echo "Baseline run without pipelining"
echo "==============================="
echo "CARGO_BUILD_PIPELINING=$CARGO_BUILD_PIPELINING"
multitime -q -n 6 -r 'echo done && echo -n clobbering... && ./mach clobber && echo done && echo -n building...' ./mach -l build.log build

echo ""
echo "Running with pipelining"
echo "======================="
export CARGO_BUILD_PIPELINING=true
echo "CARGO_BUILD_PIPELINING=$CARGO_BUILD_PIPELINING"
multitime -q -n 6 -r 'echo done && echo -n clobbering... && ./mach clobber && echo done && echo -n building...' ./mach -l build.log build

unset CARGO_BUILD_PIPELINING

rustup default stable