aqbanking: Move sources into a common sources.nix

The upstream URLs unfortunately aren't canonical, so let's have a
sources.nix which contains the release IDs used by the upstream sites to
associate a version of a particular package.

We're then going to create an updater script which should update the
sources.nix from there on.

Signed-off-by: aszlig <[e-mail]>
Cc: @cillianderoiste, @urkud

pkgs/development/libraries/aqbanking/default.nix

···
   version = "5.6.10";
 
   src = let
-    releaseNum = 206; # Change this on update
-    qstring = "package=03&release=${toString releaseNum}&file=01";
+    inherit ((import ./sources.nix).aqbanking) sha256 releaseId;
+    qstring = "package=03&release=${releaseId}&file=01";
     mkURLs = map (base: "${base}/sites/download/download.php?${qstring}");
   in fetchurl {
     name = "${name}.tar.gz";
     urls = mkURLs [ "http://www.aquamaniac.de" "http://www2.aquamaniac.de" ];
-    sha256 = "1x0isvpk43rq2zlyyb9p0kgjmqv7yq07vgkiprw3f5sjkykvxw6d";
+    inherit sha256;
   };
 
   postPatch = ''

pkgs/development/libraries/aqbanking/gwenhywfar.nix

···
   version = "4.15.3";
 
   src = let
-    releaseNum = 201; # Change this on update
-    qstring = "package=01&release=${toString releaseNum}&file=01";
+    inherit ((import ./sources.nix).gwenhywfar) sha256 releaseId;
+    qstring = "package=01&release=${releaseId}&file=01";
     mkURLs = map (base: "${base}/sites/download/download.php?${qstring}");
   in fetchurl {
     name = "${name}.tar.gz";
     urls = mkURLs [ "http://www.aquamaniac.de" "http://www2.aquamaniac.de" ];
-    sha256 = "0fp67s932x66xfljb26zbrn8ambbc5y5c3hllr6l284nr63qf3ka";
+    inherit sha256;
   };
 
   postPatch = let

pkgs/development/libraries/aqbanking/libchipcard.nix

···
   version = "5.0.4";
 
   src = let
-    releaseNum = 200; # Change this on update
-    qstring = "package=02&release=${toString releaseNum}&file=01";
+    inherit ((import ./sources.nix).libchipcard) sha256 releaseId;
+    qstring = "package=02&release=${releaseId}&file=01";
     mkURLs = map (base: "${base}/sites/download/download.php?${qstring}");
   in fetchurl {
     name = "${name}.tar.gz";
     urls = mkURLs [ "http://www.aquamaniac.de" "http://www2.aquamaniac.de" ];
-    sha256 = "0fj2h39ll4kiv28ch8qgzdbdbnzs8gl812qnm660bw89rynpjnnj";
+    inherit sha256;
   };
 
   nativeBuildInputs = [ pkgconfig ];

pkgs/development/libraries/aqbanking/sources.nix

···
+{
+  gwenhywfar.version = "4.15.3";
+  gwenhywfar.sha256 = "0fp67s932x66xfljb26zbrn8ambbc5y5c3hllr6l284nr63qf3ka";
+  gwenhywfar.releaseId = "201";
+  libchipcard.version = "5.0.4";
+  libchipcard.sha256 = "0fj2h39ll4kiv28ch8qgzdbdbnzs8gl812qnm660bw89rynpjnnj";
+  libchipcard.releaseId = "200";
+  aqbanking.version = "5.6.10";
+  aqbanking.sha256 = "1x0isvpk43rq2zlyyb9p0kgjmqv7yq07vgkiprw3f5sjkykvxw6d";
+  aqbanking.releaseId = "206";
+}