nix-bitcoin/test/lib/copy-src.sh

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# Re-run run-tests.sh in a snapshot copy of the source.
# Maintain /tmp/nix-bitcoin-src as a source cache to minimize copies.
tmp=$(mktemp -d '/tmp/nix-bitcoin-src.XXXXX')
# Move source cache if it exists (atomic)
mv /tmp/nix-bitcoin-src $tmp/src 2>/dev/null || true
atExit() {
# Set the current src as the source cache (atomic)
mv -T $tmp/src /tmp/nix-bitcoin-src 2>/dev/null || true
rm -rf $tmp
}
trap "atExit" EXIT
rsync -a --delete --exclude='.git*' "$scriptDir/../" $tmp/src
echo "Copied src"
_nixBitcoinInCopiedSrc=1 $tmp/src/test/run-tests.sh "${args[@]}"