nixpkgs/pkgs/applications/editors/jetbrains/update.pl

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#!/usr/bin/env nix-shell
#!nix-shell -i perl -p perl perlPackages.LWPProtocolhttps perlPackages.FileSlurp
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use strict;
use List::Util qw(reduce);
use File::Slurp;
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use LWP::Simple;
sub semantic_less {
my ($a, $b) = @_;
$a =~ s/\b(\d+)\b/sprintf("%010s", $1)/eg;
$b =~ s/\b(\d+)\b/sprintf("%010s", $1)/eg;
return $a lt $b;
}
sub get_latest_versions {
my @channels = get("http://www.jetbrains.com/updates/updates.xml") =~ /(<channel .+?<\/channel>)/gs;
my %h = {};
for my $ch (@channels) {
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my ($id) = $ch =~ /^<channel id="[^"]+" name="([^"]+)"/;
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my @builds = $ch =~ /(<build .+?<\/build>)/gs;
my $latest_build = reduce {
my ($aversion) = $a =~ /^<build [^>]*version="([^"]+)"/; die "no version in $a" unless $aversion;
my ($bversion) = $b =~ /^<build [^>]*version="([^"]+)"/; die "no version in $b" unless $bversion;
semantic_less($aversion, $bversion) ? $b : $a;
} @builds;
next unless $latest_build;
# version as in download url
my ($version) = $latest_build =~ /^<build [^>]*version="([^"]+)"/;
my ($fullNumber) = $latest_build =~ /^<build [^>]*fullNumber="([^"]+)"/;
my $latest_version_full1 = "$version-$fullNumber";
$latest_version_full1 =~ s/\s*EAP//;
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my ($latest_version) = $latest_build =~ /^<build [^>]*version="([^"]+)"/;
($latest_version) = $latest_build =~ /^<build [^>]*fullNumber="([^"]+)"/ if $latest_version =~ / /;
$h{$id} = $latest_version;
$h{"full1_" . $id} = $latest_version_full1;
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}
return %h;
}
my %latest_versions = get_latest_versions();
# for my $ch (sort keys %latest_versions) {
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# print("$ch $latest_versions{$ch}\n");
# }
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sub update_nix_block {
my ($block) = @_;
my ($channel) = $block =~ /update-channel\s*=\s*"([^"]+)"/;
if ($channel) {
if ($latest_versions{$channel}) {
my ($version) = $block =~ /version\s*=\s*"([^"]+)"/;
die "no version in $block" unless $version;
if ($version eq $latest_versions{$channel}) {
print("$channel is up to date at $version\n");
} else {
print("updating $channel: $version -> $latest_versions{$channel}\n");
my ($url) = $block =~ /url\s*=\s*"([^"]+)"/;
# try to interpret some nix
my ($name) = $block =~ /name\s*=\s*"([^"]+)"/;
$name =~ s/\$\{version\}/$latest_versions{$channel}/;
$url =~ s/\$\{name\}/$name/;
$url =~ s/\$\{version\}/$latest_versions{$channel}/;
die "$url still has some interpolation" if $url =~ /\$/;
my ($sha256) = get("$url.sha256") =~ /^([0-9a-f]{64})/;
my $version_string = $latest_versions{$channel};
unless ( $sha256 ) {
my $full_version = $latest_versions{"full1_" . $channel};
$url =~ s/$version_string/$full_version/;
($sha256) = get("$url.sha256") =~ /^([0-9a-f]{64})/;
$version_string = $full_version;
}
die "invalid sha256 in $url.sha256" unless $sha256;
my ($sha256Base32) = readpipe("nix-hash --type sha256 --to-base32 $sha256");
chomp $sha256Base32;
print "Jetbrains published SHA256: $sha256\n";
print "Conversion into base32 yields: $sha256Base32\n";
$block =~ s#version\s*=\s*"([^"]+)".+$#version = "$version_string"; /* updated by script */#m;
$block =~ s#sha256\s*=\s*"([^"]+)".+$#sha256 = "$sha256Base32"; /* updated by script */#m;
}
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} else {
warn "unknown update-channel $channel";
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}
}
return $block;
}
my $nix = read_file 'default.nix';
$nix =~ s/(= build\w+ rec \{.+?\n \};\n)/update_nix_block($1)/gse;
write_file 'default.nix', $nix;