mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-23 06:03:40 +00:00
09a4a051e8
SRI hashes (base64 encoded) can contain + sign which is a special character in extended regular expressions so it needs to be escaped.
200 lines
6.8 KiB
Bash
Executable File
200 lines
6.8 KiB
Bash
Executable File
#!/usr/bin/env bash
|
||
set -e
|
||
|
||
scriptName=update-source-versions # do not use the .wrapped name
|
||
|
||
die() {
|
||
echo "$scriptName: error: $1" >&2
|
||
exit 1
|
||
}
|
||
|
||
usage() {
|
||
echo "Usage: $scriptName <attr> <version> [<new-source-hash>] [<new-source-url>]"
|
||
echo " [--version-key=<version-key>] [--system=<system>] [--file=<file-to-update>]"
|
||
echo " [--ignore-same-hash]"
|
||
}
|
||
|
||
args=()
|
||
|
||
for arg in "$@"; do
|
||
case $arg in
|
||
--system=*)
|
||
systemArg="--system ${arg#*=}"
|
||
;;
|
||
--version-key=*)
|
||
versionKey="${arg#*=}"
|
||
;;
|
||
--file=*)
|
||
nixFile="${arg#*=}"
|
||
if [[ ! -f "$nixFile" ]]; then
|
||
die "Could not find provided file $nixFile"
|
||
fi
|
||
;;
|
||
--ignore-same-hash)
|
||
ignoreSameHash="true"
|
||
;;
|
||
--help)
|
||
usage
|
||
exit 0
|
||
;;
|
||
--*)
|
||
echo "$scriptName: Unknown argument: $arg"
|
||
usage
|
||
exit 1
|
||
;;
|
||
*)
|
||
args["${#args[*]}"]=$arg
|
||
;;
|
||
esac
|
||
done
|
||
|
||
attr=${args[0]}
|
||
newVersion=${args[1]}
|
||
newHash=${args[2]}
|
||
newUrl=${args[3]}
|
||
|
||
if (( "${#args[*]}" < 2 )); then
|
||
echo "$scriptName: Too few arguments"
|
||
usage
|
||
exit 1
|
||
fi
|
||
|
||
if (( "${#args[*]}" > 4 )); then
|
||
echo "$scriptName: Too many arguments"
|
||
usage
|
||
exit 1
|
||
fi
|
||
|
||
if [[ -z "$versionKey" ]]; then
|
||
versionKey=version
|
||
fi
|
||
|
||
if [[ -z "$nixFile" ]]; then
|
||
nixFile=$(nix-instantiate $systemArg --eval --strict -A "$attr.meta.position" | sed -re 's/^"(.*):[0-9]+"$/\1/')
|
||
if [[ ! -f "$nixFile" ]]; then
|
||
die "Couldn't evaluate '$attr.meta.position' to locate the .nix file!"
|
||
fi
|
||
fi
|
||
|
||
oldHashAlgo=$(nix-instantiate $systemArg --eval --strict -A "$attr.src.drvAttrs.outputHashAlgo" | tr -d '"')
|
||
oldHash=$(nix-instantiate $systemArg --eval --strict -A "$attr.src.drvAttrs.outputHash" | tr -d '"')
|
||
|
||
if [[ -z "$oldHashAlgo" || -z "$oldHash" ]]; then
|
||
die "Couldn't evaluate old source hash from '$attr.src'!"
|
||
fi
|
||
|
||
if [[ $(grep --count "$oldHash" "$nixFile") != 1 ]]; then
|
||
die "Couldn't locate old source hash '$oldHash' (or it appeared more than once) in '$nixFile'!"
|
||
fi
|
||
|
||
oldUrl=$(nix-instantiate $systemArg --eval -E "with import ./. {}; builtins.elemAt ($attr.src.drvAttrs.urls or [ $attr.src.url ]) 0" | tr -d '"')
|
||
|
||
if [[ -z "$oldUrl" ]]; then
|
||
die "Couldn't evaluate source url from '$attr.src'!"
|
||
fi
|
||
|
||
drvName=$(nix-instantiate $systemArg --eval -E "with import ./. {}; lib.getName $attr" | tr -d '"')
|
||
oldVersion=$(nix-instantiate $systemArg --eval -E "with import ./. {}; $attr.${versionKey} or (lib.getVersion $attr)" | tr -d '"')
|
||
|
||
if [[ -z "$drvName" || -z "$oldVersion" ]]; then
|
||
die "Couldn't evaluate name and version from '$attr.name'!"
|
||
fi
|
||
|
||
if [[ "$oldVersion" = "$newVersion" ]]; then
|
||
echo "$scriptName: New version same as old version, nothing to do." >&2
|
||
exit 0
|
||
fi
|
||
|
||
# Escape regex metacharacter that are allowed in store path names
|
||
oldVersionEscaped=$(echo "$oldVersion" | sed -re 's|[.+]|\\&|g')
|
||
oldUrlEscaped=$(echo "$oldUrl" | sed -re 's|[${}.+]|\\&|g')
|
||
|
||
if [[ $(grep --count --extended-regexp "^\s*(let\b)?\s*$versionKey\s*=\s*\"$oldVersionEscaped\"" "$nixFile") = 1 ]]; then
|
||
pattern="/\b$versionKey\b\s*=/ s|\"$oldVersionEscaped\"|\"$newVersion\"|"
|
||
elif [[ $(grep --count --extended-regexp "^\s*(let\b)?\s*name\s*=\s*\"[^\"]+-$oldVersionEscaped\"" "$nixFile") = 1 ]]; then
|
||
pattern="/\bname\b\s*=/ s|-$oldVersionEscaped\"|-$newVersion\"|"
|
||
else
|
||
die "Couldn't figure out where out where to patch in new version in '$attr'!"
|
||
fi
|
||
|
||
if [[ "$oldHash" =~ ^(sha256|sha512)[:-] ]]; then
|
||
# Handle the possible SRI-style hash attribute (in the form ${type}${separator}${hash})
|
||
# True SRI uses dash as a separator and only supports base64, whereas Nix’s SRI-style format uses a colon and supports all the same encodings like regular hashes (16/32/64).
|
||
# To keep this program reasonably simple, we will upgrade Nix’s format to SRI.
|
||
oldHashAlgo="${BASH_REMATCH[1]}"
|
||
sri=true
|
||
elif [[ "$oldHashAlgo" = "null" ]]; then
|
||
# Some fetcher functions support SRI-style `hash` attribute in addition to legacy type-specific attributes. When `hash` is used `outputHashAlgo` is null so let’s complain when SRI-style hash value was not detected.
|
||
die "Unable to figure out hashing scheme from '$oldHash' in '$attr'!"
|
||
fi
|
||
|
||
case "$oldHashAlgo" in
|
||
# Lengths of hex-encoded hashes
|
||
sha256) hashLength=64 ;;
|
||
sha512) hashLength=128 ;;
|
||
*) die "Unhandled hash algorithm '$oldHashAlgo' in '$attr'!" ;;
|
||
esac
|
||
|
||
# Make a temporary all-zeroes hash of $hashLength characters
|
||
tempHash=$(printf '%0*d' "$hashLength" 0)
|
||
|
||
if [[ -n "$sri" ]]; then
|
||
# SRI hashes only support base64
|
||
# SRI hashes need to declare the hash type as part of the hash
|
||
tempHash="$(nix to-sri --type "$oldHashAlgo" "$tempHash")"
|
||
fi
|
||
|
||
# Escape regex metacharacter that are allowed in hashes (+)
|
||
oldHashEscaped=$(echo "$oldHash" | sed -re 's|[+]|\\&|g')
|
||
tempHashEscaped=$(echo "$tempHash" | sed -re 's|[+]|\\&|g')
|
||
|
||
# Replace new version
|
||
sed -i.bak "$nixFile" -re "$pattern"
|
||
if cmp -s "$nixFile" "$nixFile.bak"; then
|
||
die "Failed to replace version '$oldVersion' to '$newVersion' in '$attr'!"
|
||
fi
|
||
|
||
# Replace new URL
|
||
if [[ -n "$newUrl" ]]; then
|
||
sed -i "$nixFile" -re "s|\"$oldUrlEscaped\"|\"$newUrl\"|"
|
||
|
||
if cmp -s "$nixFile" "$nixFile.bak"; then
|
||
die "Failed to replace source URL '$oldUrl' to '$newUrl' in '$attr'!"
|
||
fi
|
||
fi
|
||
|
||
sed -i "$nixFile" -re "s|\"$oldHashEscaped\"|\"$tempHash\"|"
|
||
if cmp -s "$nixFile" "$nixFile.bak"; then
|
||
die "Failed to replace source hash of '$attr' to a temporary hash!"
|
||
fi
|
||
|
||
# If new hash not given on the command line, recalculate it ourselves.
|
||
if [[ -z "$newHash" ]]; then
|
||
nix-build $systemArg --no-out-link -A "$attr.src" 2>"$attr.fetchlog" >/dev/null || true
|
||
# FIXME: use nix-build --hash here once https://github.com/NixOS/nix/issues/1172 is fixed
|
||
newHash=$(sed '1,/hash mismatch in fixed-output derivation/d' "$attr.fetchlog" | grep --perl-regexp --only-matching 'got: +.+[:-]\K.+')
|
||
|
||
if [[ -n "$sri" ]]; then
|
||
# nix-build preserves the hashing scheme so we can just convert the result to SRI using the old type
|
||
newHash="$(nix to-sri --type "$oldHashAlgo" "$newHash")"
|
||
fi
|
||
fi
|
||
|
||
if [[ -z "$newHash" ]]; then
|
||
cat "$attr.fetchlog" >&2
|
||
die "Couldn't figure out new hash of '$attr.src'!"
|
||
fi
|
||
|
||
if [[ -z "${ignoreSameHash}" && "$oldVersion" != "$newVersion" && "$oldHash" = "$newHash" ]]; then
|
||
mv "$nixFile.bak" "$nixFile"
|
||
die "Both the old and new source hashes of '$attr.src' were equivalent. Please fix the package's source URL to be dependent on '\${version}'!"
|
||
fi
|
||
|
||
sed -i "$nixFile" -re "s|\"$tempHashEscaped\"|\"$newHash\"|"
|
||
if cmp -s "$nixFile" "$nixFile.bak"; then
|
||
die "Failed to replace temporary source hash of '$attr' to the final source hash!"
|
||
fi
|
||
|
||
rm -f "$nixFile.bak"
|
||
rm -f "$attr.fetchlog"
|