From 98f353c4050978390e22129d242fdf788649465e Mon Sep 17 00:00:00 2001
From: zseri <zseri.devel@ytrizja.de>
Date: Mon, 15 Mar 2021 17:18:21 +0100
Subject: [PATCH] rpm2targz: init at 9.0.0.5g

---
 pkgs/tools/archivers/rpm2targz/default.nix | 55 ++++++++++++++++++++++
 pkgs/top-level/all-packages.nix            |  2 +
 2 files changed, 57 insertions(+)
 create mode 100644 pkgs/tools/archivers/rpm2targz/default.nix

diff --git a/pkgs/tools/archivers/rpm2targz/default.nix b/pkgs/tools/archivers/rpm2targz/default.nix
new file mode 100644
index 000000000000..ac5b132d7ab4
--- /dev/null
+++ b/pkgs/tools/archivers/rpm2targz/default.nix
@@ -0,0 +1,55 @@
+{ bzip2
+, coreutils
+, cpio
+, fetchurl
+, gnutar
+, gzip
+, lib
+, stdenv
+, xz
+, zstd
+}:
+
+let
+  shdeps = [
+    bzip2
+    coreutils
+    cpio
+    gnutar
+    gzip
+    xz
+    zstd
+  ];
+
+in stdenv.mkDerivation rec {
+  pname = "rpm2targz";
+  version = "2021.03.16";
+
+  # git repo: https://gitweb.gentoo.org/proj/rpm2targz.git/
+  src = fetchurl {
+    url = "https://dev.gentoo.org/~vapier/dist/${pname}-${version}.tar.xz";
+    hash = "sha256-rcV+o9V2wWKznqSW2rA8xgnpQ02kpK4te6mYvLRC5vQ=";
+  };
+
+  buildInputs = shdeps;
+
+  postPatch = ''
+    substituteInPlace rpm2targz --replace "=\"rpmoffset\"" "=\"$out/bin/rpmoffset\""
+    # rpm2targz relies on the executable name
+    # to guess what compressor it should use
+    # this is more reliable than wrapProgram
+    sed -i -e '2iexport PATH="${lib.makeBinPath shdeps}"' rpm2targz
+  '';
+
+  preBuild = ''
+    makeFlagsArray+=(prefix=$out)
+  '';
+
+  meta = with lib; {
+    description = "Convert a .rpm file to a .tar.gz archive";
+    homepage = "http://slackware.com/config/packages.php";
+    license = licenses.bsd1;
+    maintainers = with maintainers; [ zseri ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 668f8ed4ae11..fcb565eb7f4e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7727,6 +7727,8 @@ in
     gperf = gperf_3_0;
   };
 
+  rpm2targz = callPackage ../tools/archivers/rpm2targz { };
+
   rpmextract = callPackage ../tools/archivers/rpmextract { };
 
   rrdtool = callPackage ../tools/misc/rrdtool { };