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update-source-version: update cargo hash if exists #392827

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update-source-version: update cargo hash if exists #392827

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45 changes: 45 additions & 0 deletions pkgs/common-updater/scripts/update-source-version
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Original file line number Diff line number Diff line change
Expand Up @@ -283,9 +283,54 @@ if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace temporary source hash of '$attr' to the final source hash!"
fi

cargoHashExists=$(nix-instantiate $systemArg --eval --strict -E "let pkgs = $importTree; in builtins.hasAttr \"cargoHash\" pkgs.$attr")

if [[ "$cargoHashExists" = "true" ]]; then
# Get old cargo hash though $attr.cargoHash
oldCargoHash=$(nix-instantiate $systemArg --eval --strict -A "$attr.cargoHash" | tr -d '"')
if [[ -z "$oldCargoHash" ]]; then
die "Couldn't evaluate old cargo hash from '$attr.cargoHash'!"
fi
if [[ $(grep --count "$oldCargoHash" "$nixFile") != 1 ]]; then
die "Couldn't locate old cargo hash '$oldCargoHash' (or it appeared more than once) in '$nixFile'!"
fi

# Replace cargo hash with temporary hash
oldCargoHashEscaped=$(echo "$oldCargoHash" | sed -re 's|[+]|\\&|g')
tempCargoHash="sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
tempCargoHashEscaped=$(echo "$tempCargoHash" | sed -re 's|[+]|\\&|g')
sed -i.cargohash.cmp "$nixFile" -re "s|\"$oldCargoHashEscaped\"|\"$tempCargoHash\"|"
if cmp -s "$nixFile" "$nixFile.cargohash.cmp"; then
die "Failed to replace cargo hash of '$attr' to a temporary hash!"
fi

# Compute new cargo hash
nix-build $systemArg --no-out-link -A "$attr.cargoDeps" 2>"$attr.cargohash.fetchlog" >/dev/null || true
# FIXME: use nix-build --hash here once https://github.com/NixOS/nix/issues/1172 is fixed
newCargoHash=$(
sed '1,/hash mismatch in fixed-output derivation/d' "$attr.cargohash.fetchlog" \
| grep --perl-regexp --only-matching 'got: +[: ]\K.+'
)
if [[ -z "$newCargoHash" ]]; then
cat "$attr.cargohash.fetchlog" >&2
die "Couldn't figure out new cargo hash of '$attr'!"
fi

# Replace temporary cargo hash with the new one
sed -i.cargohash.cmp "$nixFile" -re "s|\"$tempCargoHashEscaped\"|\"$newCargoHash\"|"
if cmp -s "$nixFile" "$nixFile.cargohash.cmp"; then
die "Failed to replace temporary cargo hash of '$attr' to the final cargo hash!"
fi
fi

rm -f "$nixFile.cmp"
rm -f "$attr.fetchlog"

if [[ "$cargoHashExists" = "true" ]]; then
rm -f "$nixFile.cargohash.cmp"
rm -f "$attr.cargohash.fetchlog"
fi

if [ -n "$printChanges" ]; then
printf '[{"attrPath":"%s","oldVersion":"%s","newVersion":"%s","files":["%s"]}]\n' "$attr" "$oldVersion" "$newVersion" "$nixFile"
fi