Merge pull request #13636 from mpscholten/undmg2

undmg: init at 1.0.0

pkgs/tools/archivers/undmg/default.nix

···
+{ stdenv, fetchFromGitHub, zlib, bzip2 }:
+
+stdenv.mkDerivation rec {
+  version = "1.0.2";
+  name = "undmg-${version}";
+
+  src = fetchFromGitHub {
+    owner = "matthewbauer";
+    repo = "undmg";
+    rev = "refs/tags/v${version}";
+    sha256 = "0w9vwvj9zbpsjkg251bwv9y10wjyjmh54q2piklz74w64rlbqblr";
+    name = "undmg-${version}";
+  };
+
+  buildInputs = [ zlib bzip2 ];
+
+  setupHook = ./setup-hook.sh;
+
+  installFlags = "PREFIX=\${out}";
+
+  meta = {
+    homepage = https://github.com/matthewbauer/undmg;
+    description = "Extract a DMG file";
+    license = stdenv.lib.licenses.gpl3;
+    platforms = stdenv.lib.platforms.all;
+  };
+}

pkgs/tools/archivers/undmg/setup-hook.sh

···
+unpackCmdHooks+=(_tryUnpackDmg)
+_tryUnpackDmg() {
+    if ! [[ "$curSrc" =~ \.dmg$ ]]; then return 1; fi
+    undmg < "$curSrc"
+}

pkgs/top-level/all-packages.nix

···
 
   unzipNLS = lowPrio (unzip.override { enableNLS = true; });
 
+  undmg = callPackage ../tools/archivers/undmg { };
+
   uptimed = callPackage ../tools/system/uptimed { };
 
   urjtag = callPackage ../tools/misc/urjtag {