protobuf: refactoring

Versions 3.x use a common derivation such as 2.x versions.

pkgs/development/libraries/protobuf/3.0.0-beta-2.nix

@@ -1,43 +1,6 @@
-{ stdenv, fetchFromGitHub , autoreconfHook, zlib, gmock }:
-
-stdenv.mkDerivation rec {
-  name = "protobuf-${version}";
+{ callPackage, ... }:
 
+callPackage ./generic-v3.nix {
   version = "3.0.0-beta-2";
-  # make sure you test also -A pythonPackages.protobuf
-  src = fetchFromGitHub {
-    owner = "google";
-    repo = "protobuf";
-    rev = "v${version}";
-    sha256 = "0cbr1glgma5vakabsjwcs41pcnn8yphhn037l0zd121zb9gdaqc1";
-  };
-
-  postPatch = ''
-    rm -rf gmock
-    cp -r ${gmock.source} gmock
-    chmod -R a+w gmock
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    substituteInPlace src/google/protobuf/testing/googletest.cc \
-      --replace 'tmpnam(b)' '"'$TMPDIR'/foo"'
-  '';
-
-  buildInputs = [ autoreconfHook zlib ];
-
-  enableParallelBuilding = true;
-
-  doCheck = true;
-
-  meta = {
-    description = "Google's data interchange format";
-    longDescription =
-      ''Protocol Buffers are a way of encoding structured data in an efficient
-        yet extensible format. Google uses Protocol Buffers for almost all of
-        its internal RPC protocols and file formats.
-      '';
-    license = stdenv.lib.licenses.bsd3;
-    platforms = stdenv.lib.platforms.unix;
-    homepage = https://developers.google.com/protocol-buffers/;
-  };
-
-  passthru.version = version;
+  sha256 = "0cbr1glgma5vakabsjwcs41pcnn8yphhn037l0zd121zb9gdaqc1";
 }

pkgs/development/libraries/protobuf/3.0.nix

@@ -1,43 +1,6 @@
-{ stdenv, fetchFromGitHub , autoreconfHook, zlib, gmock }:
-
-stdenv.mkDerivation rec {
-  name = "protobuf-${version}";
+{ callPackage, ... }:
 
+callPackage ./generic-v3.nix {
   version = "3.0.0";
-  # make sure you test also -A pythonPackages.protobuf
-  src = fetchFromGitHub {
-    owner = "google";
-    repo = "protobuf";
-    rev = "v${version}";
-    sha256 = "05qkcl96lkdama848m7q3nzzzdckjc158iiyvgmln0zi232xx7g7";
-  };
-
-  postPatch = ''
-    rm -rf gmock
-    cp -r ${gmock.source} gmock
-    chmod -R a+w gmock
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    substituteInPlace src/google/protobuf/testing/googletest.cc \
-      --replace 'tmpnam(b)' '"'$TMPDIR'/foo"'
-  '';
-
-  buildInputs = [ autoreconfHook zlib ];
-
-  enableParallelBuilding = true;
-
-  doCheck = true;
-
-  meta = {
-    description = "Google's data interchange format";
-    longDescription =
-      ''Protocol Buffers are a way of encoding structured data in an efficient
-        yet extensible format. Google uses Protocol Buffers for almost all of
-        its internal RPC protocols and file formats.
-      '';
-    license = stdenv.lib.licenses.bsd3;
-    platforms = stdenv.lib.platforms.unix;
-    homepage = https://developers.google.com/protocol-buffers/;
-  };
-
-  passthru.version = version;
+  sha256 = "05qkcl96lkdama848m7q3nzzzdckjc158iiyvgmln0zi232xx7g7";
 }

pkgs/development/libraries/protobuf/generic-v3.nix

@@ -0,0 +1,47 @@
+{ stdenv
+, fetchFromGitHub
+, autoreconfHook, zlib, gmock
+, version, sha256
+, ...
+}:
+
+stdenv.mkDerivation rec {
+  name = "protobuf-${version}";
+
+  # make sure you test also -A pythonPackages.protobuf
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "protobuf";
+    rev = "v${version}";
+    inherit sha256;
+  };
+
+  postPatch = ''
+    rm -rf gmock
+    cp -r ${gmock.source} gmock
+    chmod -R a+w gmock
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace src/google/protobuf/testing/googletest.cc \
+      --replace 'tmpnam(b)' '"'$TMPDIR'/foo"'
+  '';
+
+  buildInputs = [ autoreconfHook zlib ];
+
+  enableParallelBuilding = true;
+
+  doCheck = true;
+
+  meta = {
+    description = "Google's data interchange format";
+    longDescription =
+      ''Protocol Buffers are a way of encoding structured data in an efficient
+        yet extensible format. Google uses Protocol Buffers for almost all of
+        its internal RPC protocols and file formats.
+      '';
+    license = stdenv.lib.licenses.bsd3;
+    platforms = stdenv.lib.platforms.unix;
+    homepage = https://developers.google.com/protocol-buffers/;
+  };
+
+  passthru.version = version;
+}