nixpkgs/pkgs/applications/misc/electrum/update.nix
Joachim Fasting fc1129c8af
electrum: implement crude updater
Takes care of the tedium of checking signatures & whatnot.  Does not update
checksum for the tests yet ...

Usage
  $ nix-shell maintainers/scripts/update.nix --argstr package electrum

Warning: dumps cruft to $PWD
2019-05-17 12:36:29 +02:00

60 lines
1.1 KiB
Nix

{ lib
, writeScript
, common-updater-scripts
, bash
, coreutils
, curl
, gnugrep
, gnupg
, gnused
, nix
}:
with lib;
let
downloadPageUrl = "https://download.electrum.org";
signingKeys = ["6694 D8DE 7BE8 EE56 31BE D950 2BD5 824B 7F94 70E6"];
in
writeScript "update-electrum" ''
#! ${bash}/bin/bash
set -eu -o pipefail
export PATH=${makeBinPath [
common-updater-scripts
coreutils
curl
gnugrep
gnupg
gnused
nix
]}
version=$(curl -L --list-only -- '${downloadPageUrl}' \
| grep -Po '<a href="\K([[:digit:]]+\.?)+' \
| sort -Vu \
| tail -n1)
srcName=Electrum-$version
srcFile=$srcName.tar.gz
srcUrl="${downloadPageUrl}/$version/$srcFile"
sigUrl=$srcUrl.asc
sigFile=$srcFile.asc
[[ -e "$srcFile" ]] || curl -L -o "$srcFile" -- "$srcUrl"
[[ -e "$sigFile" ]] || curl -L -o "$sigFile" -- "$sigUrl"
export GNUPGHOME=$PWD/gnupg
mkdir -m 700 -p "$GNUPGHOME"
gpg --batch --recv-keys ${concatStringsSep " " (map (x: "'${x}'") signingKeys)}
gpg --batch --verify "$sigFile" "$srcFile"
sha256=$(nix-prefetch-url --type sha256 "file://$PWD/$srcFile")
update-source-version electrum "$version" "$sha256"
''