nixpkgs/pkgs/tools/package-management/dpkg/default.nix
rnhmjoj 61b7cab481
treewide: use perl.withPackages when possible
Since 03eaa48 added perl.withPackages, there is a canonical way to
create a perl interpreter from a list of libraries, for use in script
shebangs or generic build inputs. This method is declarative (what we
are doing is clear), produces short shebangs[1] and needs not to wrap
existing scripts.

Unfortunately there are a few exceptions that I've found:

  1. Scripts that are calling perl with the -T switch. This makes perl
  ignore PERL5LIB, which is what perl.withPackages is using to inform
  the interpreter of the library paths.

  2. Perl packages that depends on libraries in their own path. This
  is not possible because perl.withPackages works at build time. The
  workaround is to add `-I $out/${perl.libPrefix}` to the shebang.

In all other cases I propose to switch to perl.withPackages.

[1]: https://lwn.net/Articles/779997/
2021-03-31 21:35:37 +02:00

76 lines
2.4 KiB
Nix

{ lib, stdenv, fetchurl, perl, zlib, bzip2, xz, makeWrapper, coreutils }:
stdenv.mkDerivation rec {
pname = "dpkg";
version = "1.20.7.1";
src = fetchurl {
url = "mirror://debian/pool/main/d/dpkg/dpkg_${version}.tar.xz";
sha256 = "sha256-Cq0t5of3l++OvavHuv0W3BSX8c4jvZFG+apz85alY28=";
};
configureFlags = [
"--disable-dselect"
"--with-admindir=/var/lib/dpkg"
"PERL_LIBDIR=$(out)/${perl.libPrefix}"
(lib.optionalString stdenv.isDarwin "--disable-linker-optimisations")
(lib.optionalString stdenv.isDarwin "--disable-start-stop-daemon")
];
preConfigure = ''
# Nice: dpkg has a circular dependency on itself. Its configure
# script calls scripts/dpkg-architecture, which calls "dpkg" in
# $PATH. It doesn't actually use its result, but fails if it
# isn't present, so make a dummy available.
touch $TMPDIR/dpkg
chmod +x $TMPDIR/dpkg
PATH=$TMPDIR:$PATH
for i in $(find . -name Makefile.in); do
substituteInPlace $i --replace "install-data-local:" "disabled:" ;
done
'';
patchPhase = ''
patchShebangs .
# Dpkg commands sometimes calls out to shell commands
substituteInPlace lib/dpkg/dpkg.h \
--replace '"dpkg-deb"' \"$out/bin/dpkg-deb\" \
--replace '"dpkg-split"' \"$out/bin/dpkg-split\" \
--replace '"dpkg-query"' \"$out/bin/dpkg-query\" \
--replace '"dpkg-divert"' \"$out/bin/dpkg-divert\" \
--replace '"dpkg-statoverride"' \"$out/bin/dpkg-statoverride\" \
--replace '"dpkg-trigger"' \"$out/bin/dpkg-trigger\" \
--replace '"dpkg"' \"$out/bin/dpkg\" \
--replace '"debsig-verify"' \"$out/bin/debsig-verify\" \
--replace '"rm"' \"${coreutils}/bin/rm\" \
--replace '"cat"' \"${coreutils}/bin/cat\" \
--replace '"diff"' \"${coreutils}/bin/diff\"
'';
buildInputs = [ perl zlib bzip2 xz ];
nativeBuildInputs = [ makeWrapper perl ];
postInstall =
''
for i in $out/bin/*; do
if head -n 1 $i | grep -q perl; then
substituteInPlace $i --replace \
"${perl}/bin/perl" "${perl}/bin/perl -I $out/${perl.libPrefix}"
fi
done
mkdir -p $out/etc/dpkg
cp -r scripts/t/origins $out/etc/dpkg
'';
meta = with lib; {
description = "The Debian package manager";
homepage = "https://wiki.debian.org/Teams/Dpkg";
license = licenses.gpl2Plus;
platforms = platforms.unix;
maintainers = with maintainers; [ siriobalmelli ];
};
}