depot/third_party/nixpkgs/pkgs/development/python-modules/pytorch/prefetch.sh
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GitOrigin-RevId: 31ffc50c571e6683e9ecc9dbcbd4a8e9914b4497
2021-09-26 14:46:18 +02:00

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#!/usr/bin/env nix-shell
#!nix-shell -i bash -p nix-prefetch-scripts
version=$1
bucket="https://download.pytorch.org/whl/cu111"
url_and_key_list=(
"x86_64-linux-37 $bucket/torch-${version}%2Bcu111-cp37-cp37m-linux_x86_64.whl torch-${version}-cp37-cp37m-linux_x86_64.whl"
"x86_64-linux-38 $bucket/torch-${version}%2Bcu111-cp38-cp38-linux_x86_64.whl torch-${version}-cp38-cp38-linux_x86_64.whl"
"x86_64-linux-39 $bucket/torch-${version}%2Bcu111-cp39-cp39-linux_x86_64.whl torch-${version}-cp39-cp39-linux_x86_64.whl"
)
hashfile=binary-hashes-"$version".nix
rm -f $hashfile
echo " \"$version\" = {" >> $hashfile
for url_and_key in "${url_and_key_list[@]}"; do
key=$(echo "$url_and_key" | cut -d' ' -f1)
url=$(echo "$url_and_key" | cut -d' ' -f2)
name=$(echo "$url_and_key" | cut -d' ' -f3)
echo "prefetching ${url}..."
hash=$(nix hash to-sri --type sha256 `nix-prefetch-url "$url" --name "$name"`)
echo " $key = {" >> $hashfile
echo " name = \"$name\";" >> $hashfile
echo " url = \"$url\";" >> $hashfile
echo " hash = \"$hash\";" >> $hashfile
echo " };" >> $hashfile
echo
done
echo " };" >> $hashfile
echo "done."