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#!/usr/bin/env nix-shell
#!nix-shell -I nixpkgs=./. -i bash -p curl jq nix-prefetch common-updater-scripts nix coreutils
# shellcheck shell=bash
set -euo pipefail
VERSION=$(curl -s https://api.github.com/repos/facebook/buck2/releases \
| jq -r 'sort_by(.created_at) | reverse |
(map
(select ((.prerelease == true) and (.name != "latest"))) |
first
) | .name')
PRELUDE_HASH=$(curl -sLo - "https://github.com/facebook/buck2/releases/download/${VERSION}/prelude_hash")
PRELUDE_DL_URL="https://github.com/facebook/buck2-prelude/archive/${PRELUDE_HASH}.tar.gz"
echo "Latest buck2 prerelease: $VERSION"
echo "Compatible buck2-prelude hash: $PRELUDE_HASH"
ARCHS=(
"x86_64-linux:x86_64-unknown-linux-musl"
"x86_64-darwin:x86_64-apple-darwin"
"aarch64-linux:aarch64-unknown-linux-musl"
"aarch64-darwin:aarch64-apple-darwin"
)
NFILE=pkgs/development/tools/build-managers/buck2/default.nix
HFILE=pkgs/development/tools/build-managers/buck2/hashes.json
rm -f "$HFILE" && touch "$HFILE"
PRELUDE_SHA256HASH="$(nix-prefetch-url --type sha256 "$PRELUDE_DL_URL")"
PRELUDE_SRIHASH="$(nix hash to-sri --type sha256 "$PRELUDE_SHA256HASH")"
printf "{ \"_comment\": \"@generated by pkgs/development/tools/build-managers/buck2/update.sh\"\n" >> "$HFILE"
printf ", \"_prelude\": \"$PRELUDE_SRIHASH\"\n" >> "$HFILE"
for arch in "${ARCHS[@]}"; do
IFS=: read -r arch_name arch_target <<< "$arch"
sha256hash="$(nix-prefetch-url --type sha256 "https://github.com/facebook/buck2/releases/download/${VERSION}/buck2-${arch_target}.zst")"
srihash="$(nix hash to-sri --type sha256 "$sha256hash")"
echo ", \"$arch_name\": \"$srihash\"" >> "$HFILE"
done
echo "}" >> "$HFILE"
sed -i \
'0,/version\s*=\s*".*";/s//version = "'"$VERSION"'";/' \
"$NFILE"
sed -i \
'0,/prelude-hash\s*=\s*".*";/s//prelude-hash = "'"$PRELUDE_HASH"'";/' \
"$NFILE"
echo "Done; wrote $HFILE and updated version in $NFILE."
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