Change:
<del> { stdenv, callPackage, fetchurl, makeDesktopItem, makeWrapper, patchelf , coreutils, gnugrep, which, git, python, unzip, p7zip , androidsdk, jdk }: assert stdenv.isLinux; let mkIdeaProduct = callPackage ./common.nix { }; buildClion = { name, version, src, license, description, wmClass }: (mkIdeaProduct rec { inherit name version src wmClass jdk; product = "CLion"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/clion/"; inherit description license; longDescription = '' Enhancing productivity for every C and C++ developer on Linux, OS X and Windows. ''; maintainers = with maintainers; [ edwtjo ]; platforms = platforms.linux; }; }); buildIdea = { name, version, src, license, description, wmClass }: (mkIdeaProduct rec { inherit name version src wmClass jdk; product = "IDEA"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/idea/"; inherit description license; longDescription = '' IDE for Java SE, Groovy & Scala development Powerful environment for building Google Android apps Integration with JUnit, TestNG, popular SCMs, Ant & Maven. ''; maintainers = with maintainers; [ edwtjo ]; platforms = platforms.linux; }; }); buildRubyMine = { name, version, src, license, description, wmClass }: (mkIdeaProduct rec { inherit name version src wmClass jdk; product = "RubyMine"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/ruby/"; inherit description license; longDescription = description; maintainers = with maintainers; [ edwtjo ]; platforms = platforms.linux; }; }); buildPhpStorm = { name, version, src, license, description, wmClass }: (mkIdeaProduct { inherit name version src wmClass jdk; product = "PhpStorm"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/phpstorm/"; inherit description license; longDescription = '' PhpStorm provides an editor for PHP, HTML and JavaScript with on-the-fly code analysis, error prevention and automated refactorings for PHP and JavaScript code. ''; maintainers = with maintainers; [ schristo ]; platforms = platforms.linux; }; }); buildWebStorm = { name, version, src, license, description, wmClass }: (mkIdeaProduct { inherit name version src wmClass jdk; product = "WebStorm"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/webstorm/"; inherit description license; longDescription = '' WebStorm provides an editor for HTML, JavaScript (incl. Node.js), and CSS with on-the-fly code analysis, error prevention and automated refactorings for JavaScript code. ''; maintainers = with maintainers; [ abaldeau ]; platforms = platforms.linux; }; }); buildPycharm = { name, version, src, license, description, wmClass }: (mkIdeaProduct rec { inherit name version src wmClass jdk; product = "PyCharm"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/pycharm/"; inherit description license; longDescription = '' Python IDE with complete set of tools for productive development with Python programming language. In addition, the IDE provides high-class capabilities for professional Web development with Django framework and Google App Engine. It has powerful coding assistance, navigation, a lot of refactoring features, tight integration with various Version Control Systems, Unit testing, powerful all-singing all-dancing Debugger and entire customization. PyCharm is developer driven IDE. It was developed with the aim of providing you almost everything you need for your comfortable and productive development! ''; maintainers = with maintainers; [ jgeerds ]; platforms = platforms.linux; }; }).override { propagatedUserEnvPkgs = [ python ]; }; buildDataGrip = { name, version, src, license, description, wmClass }: (mkIdeaProduct { inherit name version src wmClass jdk; product = "DataGrip"; meta = with stdenv.lib; { homepage = "https://www.jetbrains.com/datagrip/"; inherit description license; longDescription = '' DataGrip is a new IDE from JetBrains built for database admins. It allows you to quickly migrate and refactor relational databases, construct efficient, statically checked SQL queries and much more. ''; maintainers = with maintainers; [ loskutov ]; platforms = platforms.linux; }; }); in { clion = buildClion rec { name = "clion-${version}"; version = "2016.3.3"; description  = "C/C++ IDE. New. Intelligent. Cross-platform"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/cpp/CLion-${version}.tar.gz"; sha256 = "1zziyg0y51lfybflq83qwd94wcypkv4gh0cdkwfybbk4yidpnz05"; }; wmClass = "jetbrains-clion"; }; clion1 = buildClion rec { name = "clion-${version}"; version = "1.2.5"; description  = "C/C++ IDE. New. Intelligent. Cross-platform"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/cpp/${name}.tar.gz"; sha256 = "0ll1rcnnbd1if6x5rp3qw35lvp5zdzmvyg9n1lha89i34xiw36jp"; }; wmClass = "jetbrains-clion"; }; idea14-community = buildIdea rec { name = "idea-community-${version}"; version = "14.1.7"; description = "Integrated Development Environment (IDE) by Jetbrains, community edition"; license = stdenv.lib.licenses.asl20; src = fetchurl { url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz"; sha256 = "1i4mdjm9dd6zvxlpdgd3bqg45ir0cfc9hl55cdc0hg5qwbz683fz"; }; wmClass = "jetbrains-idea-ce"; }; idea-community = buildIdea rec { name = "idea-community-${version}"; version = "2017.1"; description = "Integrated Development Environment (IDE) by Jetbrains, community edition"; license = stdenv.lib.licenses.asl20; src = fetchurl { url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz"; sha256 = "0pfsf7ykwixvljcmrv4gldaaflf13brch70cd6xpax0m89vm22vm"; }; wmClass = "jetbrains-idea-ce"; }; idea14-ultimate = buildIdea rec { name = "idea-ultimate-${version}"; version = "14.1.7"; description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/idea/ideaIU-${version}.tar.gz"; sha256 = "1hhga1i2zbsipgq283gn19kv9n94inhr1bxh2yx19gz7yr4r49d2"; }; wmClass = "jetbrains-idea"; }; idea15-ultimate = buildIdea rec { name = "idea-ultimate-${version}"; version = "15.0.6"; description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/idea/ideaIU-${version}.tar.gz"; sha256 = "012aap2qn0jx4x34bdv9ivrsr86vvf683srb5vpj27hc4l6rw6ll"; }; wmClass = "jetbrains-idea"; }; idea-ultimate = buildIdea rec { name = "idea-ultimate-${version}"; version = "2017.1"; description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/idea/ideaIU-${version}.tar.gz"; sha256 = "1858jhmyyb7nhx08yxbn5bfgx9m32r8yqwjxjw17rf8gnfvs8225"; }; wmClass = "jetbrains-idea"; }; ruby-mine = buildRubyMine rec { name = "ruby-mine-${version}"; version = "2016.3.2"; description = "The Most Intelligent Ruby and Rails IDE"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz"; sha256 = "1fqlrvhlk09z8nx68qv4nqs5n8ldia3lixsl6r04gsfyl1a69sb6"; }; wmClass = "jetbrains-rubymine"; }; ruby-mine7 = buildRubyMine rec { name = "ruby-mine-${version}"; version = "7.1.5"; description = "The Most Intelligent Ruby and Rails IDE"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz"; sha256 = "04fcxj1xlap9mxmwf051s926p2darlj5kwl4lms2gy5d8b2lhd5l"; }; wmClass = "jetbrains-rubymine"; }; ruby-mine8 = buildRubyMine rec { name = "ruby-mine-${version}"; version = "8.0.4"; description = "The Most Intelligent Ruby and Rails IDE"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz"; sha256 = "0hipxib7377232w1jbf8h98bmh0djkllsrq3lq0w3fdxqglma43a"; }; wmClass = "jetbrains-rubymine"; }; pycharm-community = buildPycharm rec { name = "pycharm-community-${version}"; version = "2017.1"; description = "PyCharm Community Edition"; license = stdenv.lib.licenses.asl20; src = fetchurl { url = "https://download.jetbrains.com/python/${name}.tar.gz"; sha256 = "14p6f15n0927awgpsdsdqgmdfbbwkykrw5xggz5hnfl7d05i4sb6"; }; wmClass = "jetbrains-pycharm-ce"; }; pycharm-professional = buildPycharm rec { name = "pycharm-professional-${version}"; version = "2017.1"; description = "PyCharm Professional Edition"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/python/${name}.tar.gz"; sha256 = "1rvic3njsq480pslhw6rxld7jngchihkplq3dfnmkr2h9gx26lkf"; }; wmClass = "jetbrains-pycharm"; }; phpstorm = buildPhpStorm rec { name = "phpstorm-${version}"; version = "2017.1"; description = "Professional IDE for Web and PHP developers"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/webide/PhpStorm-${version}.tar.gz"; sha256 = "1ynffm5x8fqq2r71rr9rbvdifbwbvbhqb2x1hkyy4az38gxal1bm"; }; wmClass = "jetbrains-phpstorm"; }; phpstorm10 = buildPhpStorm rec { name = "phpstorm-${version}"; version = "10.0.4"; description = "Professional IDE for Web and PHP developers"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/webide/PhpStorm-${version}.tar.gz"; sha256 = "0fi042zvjpg5pn2mnhj3bbrdkl1b9vmhpf2l6ca4nr0rhjjv7dsm"; }; wmClass = "jetbrains-phpstorm"; }; webstorm = buildWebStorm rec { name = "webstorm-${version}"; version = "2017.1"; description = "Professional IDE for Web and JavaScript development"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz"; sha256 = "e651ad78ff9de92bb5b76698eeca1e02ab0f0c36209908074fa4a6b48586071c"; }; wmClass = "jetbrains-webstorm"; }; webstorm10 = buildWebStorm rec { name = "webstorm-${version}"; version = "10.0.5"; description = "Professional IDE for Web and JavaScript development"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz"; sha256 = "0a5s6f99wyql5pgjl94pf4ljdbviik3b8dbr1s6b7c6jn1gk62ic"; }; wmClass = "jetbrains-webstorm"; }; webstorm11 = buildWebStorm rec { name = "webstorm-${version}"; version = "11.0.4"; description = "Professional IDE for Web and JavaScript development"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz"; sha256 = "17agyqdyz6naxyx6p0y240ar93gja0ypw01nm2qmfzvh7ch03r24"; }; wmClass = "jetbrains-webstorm"; }; datagrip = buildDataGrip rec { name = "datagrip-${version}"; version = "2016.3.2"; description = "Your Swiss Army Knife for Databases and SQL"; license = stdenv.lib.licenses.unfree; src = fetchurl { url = "https://download.jetbrains.com/datagrip/${name}.tar.gz"; sha256 = "19njb6i7nl6szql7cy99jmig59b304c6im3988p1dd8dj2j6csv3"; }; wmClass = "jetbrains-datagrip"; }; } </del>

Discussion:
JetBrains IDEs are currently at which is kind of confusing because the packages here aren't all under name. For example WebStorm, PhpStorm, PyCharm and so on - these are properties of JetBrains. Therefore I think it will be good to move all them under and rename to .
Do you want to make a pull request?