nixpkgs/pkgs/common-updater/scripts/update-source-version
Jan Tojnar e628b43a9c common-updater-scripts: fix silent error on 404
When TOFU was unable to download the file, there would be no hash
in the fetch log, causing the grep to fail. Since the script
is set to errexit, it would terminate the processing without
any output. Let’s instead print the fetch log.
2022-09-27 02:19:25 +02:00

274 lines
10 KiB
Bash
Executable File
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/usr/bin/env bash
set -e
scriptName=update-source-version # do not use the .wrapped name
die() {
echo "$scriptName: error: $1" >&2
exit 1
}
usage() {
echo "Usage: $scriptName <attr> <version> [<new-source-hash>] [<new-source-url>]"
echo " [--version-key=<version-key>] [--source-key=<source-key>]"
echo " [--system=<system>] [--file=<file-to-update>] [--rev=<revision>]"
echo " [--ignore-same-hash] [--print-changes]"
}
args=()
for arg in "$@"; do
case $arg in
--system=*)
system="${arg#*=}"
systemArg="--system ${arg#*=}"
;;
--version-key=*)
versionKey="${arg#*=}"
;;
--source-key=*)
sourceKey="${arg#*=}"
;;
--file=*)
nixFile="${arg#*=}"
if [[ ! -f "$nixFile" ]]; then
die "Could not find provided file $nixFile"
fi
;;
--rev=*)
newRevision="${arg#*=}"
;;
--ignore-same-hash)
ignoreSameHash="true"
;;
--print-changes)
printChanges="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=${args[3]}
# Third-party repositories might not accept arguments in their default.nix.
importTree="(let tree = import ./.; in if builtins.isFunction tree then tree {} else tree)"
if (( "${#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 "$sourceKey" ]]; then
sourceKey=src
fi
# Allow finding packages among flake outputs in repos using flake-compat.
pname=$(nix-instantiate $systemArg --eval --strict -A "$attr.name" || echo)
if [[ -z "$pname" ]]; then
if [[ -z "$system" ]]; then
system=$(nix-instantiate --eval -E 'builtins.currentSystem' | tr -d '"')
fi
pname=$(nix-instantiate $systemArg --eval --strict -A "packages.$system.$attr.name" || echo)
if [[ -n "$pname" ]]; then
attr="packages.$system.$attr"
else
pname=$(nix-instantiate $systemArg --eval --strict -A "legacyPackages.$system.$attr.name" || echo)
if [[ -n "$pname" ]]; then
attr="legacyPackages.$system.$attr"
else
die "Could not find attribute '$attr'!"
fi
fi
fi
if [[ -z "$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 '$attr.meta.position' to locate the .nix file!"
fi
# flake-compat will return paths in the Nix store, we need to correct for that.
possiblyOutPath=$(nix-instantiate $systemArg --eval -E "with $importTree; outPath" 2>/dev/null | tr -d '"')
if [[ -n "$possiblyOutPath" ]]; then
outPathEscaped=$(echo "$possiblyOutPath" | sed 's#[$^*\\.[|]#\\&#g')
pwdEscaped=$(echo "$PWD" | sed 's#[$^*\\.[|]#\\&#g')
nixFile=$(echo "$nixFile" | sed "s|^$outPathEscaped|$pwdEscaped|")
fi
fi
oldHashAlgo=$(nix-instantiate $systemArg --eval --strict -A "$attr.$sourceKey.drvAttrs.outputHashAlgo" | tr -d '"')
oldHash=$(nix-instantiate $systemArg --eval --strict -A "$attr.$sourceKey.drvAttrs.outputHash" | tr -d '"')
if [[ -z "$oldHashAlgo" || -z "$oldHash" ]]; then
die "Couldn't evaluate old source hash from '$attr.$sourceKey'!"
fi
if [[ $(grep --count "$oldHash" "$nixFile") != 1 ]]; then
die "Couldn't locate old source hash '$oldHash' (or it appeared more than once) in '$nixFile'!"
fi
oldVersion=$(nix-instantiate $systemArg --eval -E "with $importTree; $attr.${versionKey} or (builtins.parseDrvName $attr.name).version" | tr -d '"')
if [[ -z "$oldVersion" ]]; then
die "Couldn't find out the old version of '$attr'!"
fi
if [[ "$oldVersion" = "$newVersion" ]]; then
echo "$scriptName: New version same as old version, nothing to do." >&2
if [ -n "$printChanges" ]; then
printf '[]\n'
fi
exit 0
fi
if [[ -n "$newRevision" ]]; then
oldRevision=$(nix-instantiate $systemArg --eval -E "with $importTree; $attr.$sourceKey.rev" | tr -d '"')
if [[ -z "$oldRevision" ]]; then
die "Couldn't evaluate source revision from '$attr.$sourceKey'!"
fi
fi
# Escape regex metacharacter that are allowed in store path names
oldVersionEscaped=$(echo "$oldVersion" | 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}${hash})
# True SRI uses dash as a separator and only supports base64, whereas Nixs SRI-style format uses a colon and supports all the same encodings like regular hashes (16/32/64).
# To keep this program reasonably simple, we will upgrade Nixs format to SRI.
oldHashAlgo="${BASH_REMATCH[1]}"
sri=true
elif [[ "$oldHashAlgo" = "null" ]]; then
# Some fetcher functions support SRI-style `hash` attribute in addition to legacy type-specific attributes. When `hash` is used `outputHashAlgo` is null so lets complain when SRI-style hash value was not detected.
die "Unable to figure out hashing scheme from '$oldHash' in '$attr'!"
fi
case "$oldHashAlgo" in
# Choose a temporary hash for given algorithm.
# Not using all-zeroes hash, since that is sometimes
# used for clean-up when updating multi-source packages.
# Created by hashing “update-source-version” string.
sha256) tempHash=AzH1rZFqEH8sovZZfJykvsEmCedEZWigQFHWHl6/PdE= ;;
sha512) tempHash=KFj9Fvco4AuCgLJIGRnVzyssRf7VGP2oi5CkH6ADvj75ow3am3h8pxefOgQlO+i33Q/BBnG/ST/F7B/0BvWHxw== ;;
*) die "Unhandled hash algorithm '$oldHashAlgo' in '$attr'!" ;;
esac
if [[ -n "$sri" ]]; then
# SRI hashes only support base64
# SRI hashes need to declare the hash type as part of the hash
tempHash="$(nix --extra-experimental-features nix-command hash to-sri --type "$oldHashAlgo" "$tempHash" 2>/dev/null \
|| nix to-sri --type "$oldHashAlgo" "$tempHash" 2>/dev/null)" \
|| die "Failed to convert hash to SRI representation!"
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.cmp "$nixFile" -re "$pattern"
if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace version '$oldVersion' to '$newVersion' in '$attr'!"
fi
# Replace new URL
if [[ -n "$newUrl" ]]; then
oldUrl=$(nix-instantiate $systemArg --eval -E "with $importTree; builtins.elemAt ($attr.$sourceKey.drvAttrs.urls or [ $attr.$sourceKey.url ]) 0" | tr -d '"')
if [[ -z "$oldUrl" ]]; then
die "Couldn't evaluate source url from '$attr.$sourceKey'!"
fi
# Escape regex metacharacter that are allowed in store path names
oldUrlEscaped=$(echo "$oldUrl" | sed -re 's|[${}.+]|\\&|g')
sed -i.cmp "$nixFile" -re "s|\"$oldUrlEscaped\"|\"$newUrl\"|"
if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace source URL '$oldUrl' to '$newUrl' in '$attr'!"
fi
fi
sed -i.cmp "$nixFile" -re "s|\"$oldHashEscaped\"|\"$tempHash\"|"
if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace source hash of '$attr' to a temporary hash!"
fi
# Replace new revision, if given
if [[ -n "$newRevision" ]]; then
sed -i.cmp "$nixFile" -re "s|\"$oldRevision\"|\"$newRevision\"|"
if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace source revision '$oldRevision' to '$newRevision' in '$attr'!"
fi
fi
# If new hash not given on the command line, recalculate it ourselves.
if [[ -z "$newHash" ]]; then
nix-build $systemArg --no-out-link -A "$attr.$sourceKey" 2>"$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.+' \
|| true # handled below
)
if [[ -n "$newHash" && -n "$sri" ]]; then
# nix-build preserves the hashing scheme so we can just convert the result to SRI using the old type
newHash="$(nix --extra-experimental-features nix-command hash to-sri --type "$oldHashAlgo" "$newHash" 2>/dev/null \
|| nix to-sri --type "$oldHashAlgo" "$newHash" 2>/dev/null)" \
|| die "Failed to convert hash to SRI representation!"
fi
fi
if [[ -z "$newHash" ]]; then
cat "$attr.fetchlog" >&2
die "Couldn't figure out new hash of '$attr.$sourceKey'!"
fi
if [[ -z "${ignoreSameHash}" && "$oldVersion" != "$newVersion" && "$oldHash" = "$newHash" ]]; then
die "Both the old and new source hashes of '$attr.$sourceKey' were equivalent. Please fix the package's source URL to be dependent on '\${version}'!"
fi
sed -i.cmp "$nixFile" -re "s|\"$tempHashEscaped\"|\"$newHash\"|"
if cmp -s "$nixFile" "$nixFile.cmp"; then
die "Failed to replace temporary source hash of '$attr' to the final source hash!"
fi
rm -f "$nixFile.cmp"
rm -f "$attr.fetchlog"
if [ -n "$printChanges" ]; then
printf '[{"attrPath":"%s","oldVersion":"%s","newVersion":"%s","files":["%s"]}]\n' "$attr" "$oldVersion" "$newVersion" "$nixFile"
fi