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nixpkgs/pkgs/shells/bash/update-patch-set.sh
Tim Steinbach d63ddacf93
bash: Use nix-shell in update script
The script assumed that `wget` was available in the environment
along with common CA certificates.
Replaced the detection of GPG, which is not necessary anymore.
Added pulling the public key bash releases and patches are signed with,
without which we cannot verify signatures.
2020-10-15 19:34:49 -04:00

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#!/usr/bin/env nix-shell
#!nix-shell --pure -i bash -p wget -p gnupg -p cacert
# Update patch set for GNU Bash or Readline.
if [ $# -ne 2 ]
then
echo "Usage: $(basename $0) PROJECT VERSION"
echo ""
echo "Update the patch set for PROJECT (one of \`bash' or \`readline') for"
echo "the given version (e.g., \`4.0'). Produce \`PROJECT-patches.nix'."
exit 1
fi
PROJECT="$1"
VERSION="$2"
VERSION_CONDENSED="$(echo $VERSION | sed -es/\\.//g)"
PATCH_LIST="$PROJECT-$VERSION-patches.nix"
set -e
start=1
end=100 # must be > 99 for correct padding
rm -vf "$PATCH_LIST"
wget "https://tiswww.case.edu/php/chet/gpgkey.asc"
echo "4ef5051ce7200241e65d29c11eb57df8 gpgkey.asc" > gpgkey.asc.md5
md5sum -c gpgkey.asc.md5
gpg --import ./gpgkey.asc
rm gpgkey.asc{,.md5}
( echo "# Automatically generated by \`$(basename $0)'; do not edit." ; \
echo "" ; \
echo "patch: [" ) \
>> "$PATCH_LIST"
for i in `seq -w $start $end`
do
wget ftp.gnu.org/gnu/$PROJECT/$PROJECT-$VERSION-patches/$PROJECT$VERSION_CONDENSED-$i || break
wget ftp.gnu.org/gnu/$PROJECT/$PROJECT-$VERSION-patches/$PROJECT$VERSION_CONDENSED-$i.sig
gpg --verify $PROJECT$VERSION_CONDENSED-$i.sig
echo "(patch \"$i\" \"$(nix-hash --flat --type sha256 --base32 $PROJECT$VERSION_CONDENSED-$i)\")" \
>> "$PATCH_LIST"
rm -f $PROJECT$VERSION_CONDENSED-$i{,.sig}
done
echo "]" >> "$PATCH_LIST"
echo "Got $(expr $i - 1) patches."
echo "Patch list has been written to \`$PATCH_LIST'."