pyrox.dev
1#!/usr/bin/env nix-shell
2#!nix-shell --pure -i bash -p wget -p gnupg -p cacert -p nix
3
4# Update patch set for GNU Bash or Readline.
5
6if [ $# -ne 2 ]
7then
8 echo "Usage: $(basename "$0") PROJECT VERSION"
9 echo ""
10 echo "Update the patch set for PROJECT (one of \`bash' or \`readline') for"
11 echo "the given version (e.g., \`4.0'). Produce \`PROJECT-patches.nix'."
12 exit 1
13fi
14
15PROJECT="$1"
16VERSION="$2"
17DIR=$(dirname "$0")
18VERSION_CONDENSED="$(echo "$VERSION" | sed -es/\\.//g)"
19PATCH_LIST="$DIR/$PROJECT-$VERSION-patches.nix"
20
21set -e
22
23rm -vf "$PATCH_LIST"
24
25# https://savannah.gnu.org/projects/bash/: Group Admins: Chet Ramey
26# https://savannah.gnu.org/users/chet: Download GPG Key
27wget "https://savannah.gnu.org/people/viewgpg.php?user_id=2590" -O gpgkey.asc
28echo "db4041b4d3896b9f21250e6c29861958bd5d4781f521f06beda849a9ed79fae8 gpgkey.asc" > gpgkey.asc.sha256
29sha256sum -c gpgkey.asc.sha256
30gpg --import ./gpgkey.asc
31rm gpgkey.asc{,.sha256}
32
33( echo "# Automatically generated by \`$(basename "$0")'; do not edit." ; \
34 echo "" ; \
35 echo "patch: [" ) \
36>> "$PATCH_LIST"
37
38for i in {001..100}
39do
40 wget -P "$DIR" "ftp.gnu.org/gnu/$PROJECT/$PROJECT-$VERSION-patches/$PROJECT$VERSION_CONDENSED-$i" || break
41 wget -P "$DIR" "ftp.gnu.org/gnu/$PROJECT/$PROJECT-$VERSION-patches/$PROJECT$VERSION_CONDENSED-$i.sig"
42 gpg --verify "$DIR/$PROJECT$VERSION_CONDENSED-$i.sig"
43 hash=$(nix-hash --flat --type sha256 --base32 "$DIR/$PROJECT$VERSION_CONDENSED-$i")
44 echo " (patch \"$i\" \"$hash\")" \
45 >> "$PATCH_LIST"
46
47 rm -f "$DIR/$PROJECT$VERSION_CONDENSED-$i"{,.sig}
48done
49
50echo "]" >> "$PATCH_LIST"
51
52# bash interprets numbers starting with 0 as octals
53echo "Got $((10#$i - 1)) patches."
54echo "Patch list has been written to \`$PATCH_LIST'."