nixpkgs/pkgs/servers/x11/xorg/generate-expr-from-tarballs.pl

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#! /usr/bin/perl -w
# Typical command to generate the list of tarballs:
# export i="mirror://xorg/X11R7.7/src/everything/"; cat $(PRINT_PATH=1 nix-prefetch-url $i | tail -n 1) | perl -e 'while (<>) { if (/(href|HREF)="([^"]*.bz2)"/) { print "$ENV{'i'}$2\n"; }; }' | sort > tarballs-7.7.list
# manually update extra.list
# then run: cat tarballs-7.7.list extra.list old.list | perl ./generate-expr-from-tarballs.pl
# tarballs-x.y.list is generated + changes for individual packages
# extra.list are packages not contained in the tarballs
# old.list are packages that used to be part of the tarballs
use strict;
my $tmpDir = "/tmp/xorg-unpack";
my %pkgURLs;
my %pkgHashes;
my %pkgNames;
my %pkgRequires;
my %pcMap;
my %extraAttrs;
my @missingPCs = ("fontconfig", "libdrm", "libXaw", "zlib", "perl", "python", "mesa", "mkfontscale", "mkfontdir", "bdftopcf", "libxslt", "openssl", "gperf", "m4");
$pcMap{$_} = $_ foreach @missingPCs;
$pcMap{"freetype2"} = "freetype";
$pcMap{"libpng12"} = "libpng";
$pcMap{"libpng"} = "libpng";
$pcMap{"dbus-1"} = "dbus";
$pcMap{"uuid"} = "libuuid";
$pcMap{"libudev"} = "udev";
$pcMap{"gl"} = "mesa";
$pcMap{"\$PIXMAN"} = "pixman";
$pcMap{"\$RENDERPROTO"} = "renderproto";
$pcMap{"\$DRI3PROTO"} = "dri3proto";
$pcMap{"\$DRI2PROTO"} = "dri2proto";
my $downloadCache = "./download-cache";
$ENV{'NIX_DOWNLOAD_CACHE'} = $downloadCache;
mkdir $downloadCache, 0755;
while (<>) {
chomp;
my $tarball = "$_";
print "\nDOING TARBALL $tarball\n";
my $pkg;
if ($tarball =~ s/:([a-zA-Z0-9_]+)$//) {
$pkg = $1;
} else {
$tarball =~ /\/((?:(?:[A-Za-z0-9]|(?:-[^0-9])|(?:-[0-9]*[a-z]))+))[^\/]*$/;
die unless defined $1;
$pkg = $1;
$pkg =~ s/-//g;
#next unless $pkg eq "xcbutil";
}
$tarball =~ /\/([^\/]*)\.tar\.bz2$/;
my $pkgName = $1;
print " $pkg $pkgName\n";
if (defined $pkgNames{$pkg}) {
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print " SKIPPING\n";
next;
}
$pkgURLs{$pkg} = $tarball;
$pkgNames{$pkg} = $pkgName;
my ($hash, $path) = `PRINT_PATH=1 QUIET=1 nix-prefetch-url '$tarball'`;
chomp $hash;
chomp $path;
$pkgHashes{$pkg} = $hash;
print "\nunpacking $path\n";
system "rm -rf '$tmpDir'";
mkdir $tmpDir, 0700;
system "cd '$tmpDir' && tar xfj '$path'";
die "cannot unpack `$path'" if $? != 0;
print "\n";
my $pkgDir = `echo $tmpDir/*`;
chomp $pkgDir;
my $provides = `find $pkgDir -name "*.pc.in"`;
my @provides2 = split '\n', $provides;
my @requires = ();
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foreach my $pcFile (@provides2) {
my $pc = $pcFile;
$pc =~ s/.*\///;
$pc =~ s/.pc.in//;
print "PROVIDES $pc\n";
die "collision with $pcMap{$pc}" if defined $pcMap{$pc};
$pcMap{$pc} = $pkg;
open FOO, "<$pcFile" or die;
while (<FOO>) {
if (/Requires:(.*)/) {
my @reqs = split ' ', $1;
foreach my $req (@reqs) {
next unless $req =~ /^[a-z]+$/;
print "REQUIRE (from $pc): $req\n";
push @requires, $req;
}
}
}
close FOO;
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}
my $file;
{
local $/;
open FOO, "cd '$tmpDir'/* && grep -v '^ *#' configure.ac |";
$file = <FOO>;
close FOO;
}
if ($file =~ /XAW_CHECK_XPRINT_SUPPORT/) {
push @requires, "libXaw";
}
if ($file =~ /zlib is required/ || $file =~ /AC_CHECK_LIB\(z\,/) {
push @requires, "zlib";
}
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if ($file =~ /Perl is required/) {
push @requires, "perl";
}
if ($file =~ /AC_PATH_PROG\(BDFTOPCF/) {
push @requires, "bdftopcf";
}
if ($file =~ /AC_PATH_PROG\(MKFONTSCALE/) {
push @requires, "mkfontscale";
}
if ($file =~ /AC_PATH_PROG\(MKFONTDIR/) {
push @requires, "mkfontdir";
}
if ($file =~ /AM_PATH_PYTHON/) {
push @requires, "python";
}
if ($file =~ /AC_PATH_PROG\(FCCACHE/) {
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# Don't run fc-cache.
die if defined $extraAttrs{$pkg};
$extraAttrs{$pkg} = " preInstall = \"installFlags=(FCCACHE=true)\"; ";
}
my $isFont;
if ($file =~ /XORG_FONT_BDF_UTILS/) {
push @requires, "bdftopcf", "mkfontdir";
$isFont = 1;
}
if ($file =~ /XORG_FONT_SCALED_UTILS/) {
push @requires, "mkfontscale", "mkfontdir";
$isFont = 1;
}
if ($file =~ /XORG_FONT_UCS2ANY/) {
push @requires, "fontutil", "mkfontscale";
$isFont = 1;
}
if ($isFont) {
$extraAttrs{$pkg} = " configureFlags = \"--with-fontrootdir=\$(out)/lib/X11/fonts\"; ";
}
sub process {
my $requires = shift;
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my $s = shift;
$s =~ s/\[/\ /g;
$s =~ s/\]/\ /g;
$s =~ s/\,/\ /g;
foreach my $req (split / /, $s) {
next if $req eq ">=";
#next if $req =~ /^\$/;
next if $req =~ /^[0-9]/;
next if $req =~ /^\s*$/;
next if $req eq '$REQUIRED_MODULES';
next if $req eq '$REQUIRED_LIBS';
next if $req eq '$XDMCP_MODULES';
next if $req eq '$XORG_MODULES';
print "REQUIRE: $req\n";
push @{$requires}, $req;
}
}
#process \@requires, $1 while $file =~ /PKG_CHECK_MODULES\([^,]*,\s*[\[]?([^\)\[]*)/g;
process \@requires, $1 while $file =~ /PKG_CHECK_MODULES\([^,]*,([^\)\,]*)/g;
process \@requires, $1 while $file =~ /MODULES=\"(.*)\"/g;
process \@requires, $1 while $file =~ /REQUIRED_LIBS=\"(.*)\"/g;
process \@requires, $1 while $file =~ /REQUIRED_MODULES=\"(.*)\"/g;
process \@requires, $1 while $file =~ /REQUIRES=\"(.*)\"/g;
process \@requires, $1 while $file =~ /X11_REQUIRES=\'(.*)\'/g;
process \@requires, $1 while $file =~ /XDMCP_MODULES=\"(.*)\"/g;
process \@requires, $1 while $file =~ /XORG_MODULES=\"(.*)\"/g;
process \@requires, $1 while $file =~ /NEEDED=\"(.*)\"/g;
process \@requires, $1 while $file =~ /ivo_requires=\"(.*)\"/g;
process \@requires, $1 while $file =~ /XORG_DRIVER_CHECK_EXT\([^,]*,([^\)]*)\)/g;
push @requires, "libxslt" if $pkg =~ /libxcb/;
push @requires, "gperf", "m4", "xproto" if $pkg =~ /xcbutil/;
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print "REQUIRES $pkg => @requires\n";
$pkgRequires{$pkg} = \@requires;
print "done\n";
}
print "\nWRITE OUT\n";
open OUT, ">default.nix";
print OUT "";
print OUT <<EOF;
# THIS IS A GENERATED FILE. DO NOT EDIT!
args: with args;
let
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mkDerivation = name: attrs:
let newAttrs = (overrides."\${name}" or (x: x)) attrs;
stdenv = newAttrs.stdenv or args.stdenv;
in stdenv.mkDerivation (removeAttrs newAttrs [ "stdenv" ]);
overrides = import ./overrides.nix {inherit args xorg;};
xorg = rec {
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inherit pixman;
EOF
foreach my $pkg (sort (keys %pkgURLs)) {
print "$pkg\n";
my %requires = ();
my $inputs = "";
foreach my $req (sort @{$pkgRequires{$pkg}}) {
if (defined $pcMap{$req}) {
# Some packages have .pc that depends on itself.
next if $pcMap{$req} eq $pkg;
if (!defined $requires{$pcMap{$req}}) {
$inputs .= "$pcMap{$req} ";
$requires{$pcMap{$req}} = 1;
}
} else {
print " NOT FOUND: $req\n";
}
}
my $extraAttrs = $extraAttrs{"$pkg"};
$extraAttrs = "" unless defined $extraAttrs;
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print OUT <<EOF
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$pkg = (mkDerivation "$pkg" {
name = "$pkgNames{$pkg}";
builder = ./builder.sh;
src = fetchurl {
url = $pkgURLs{$pkg};
sha256 = "$pkgHashes{$pkg}";
};
buildInputs = [pkgconfig $inputs];$extraAttrs
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}) // {inherit $inputs;};
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EOF
}
print OUT "}; in xorg\n";
close OUT;