squirrel-sql: Add jtds as a driver. (#147191)

Co-authored-by: Sandro <[e-mail]>

pkgs/servers/sql/mssql/jdbc/jtds.nix

···
+{lib, stdenv, fetchurl, unzip}:
+
+stdenv.mkDerivation rec {
+  pname = "jtds";
+  version = "1.3.1";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/jtds/${version}/${pname}-${version}-dist.zip";
+    sha256 = "sha256-eV0P8QdjfuHXzYssH8yHhynuH0Clg7MAece2Up3S9M0";
+  };
+
+  sourceRoot = ".";
+
+  installPhase = ''
+    mkdir -p $out/share/java
+    cp jtds-*.jar $out/share/java/jtds-jdbc.jar
+  '';
+
+  nativeBuildInputs = [ unzip ];
+
+  meta = with lib; {
+    description = "Pure Java (type 4) JDBC 3.0 driver for Microsoft SQL Server";
+    homepage = "http://jtds.sourceforge.net/";
+    license = licenses.lgpl21;
+    platforms = platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

···
   squeak = callPackage ../development/compilers/squeak { };
 
   squirrel-sql = callPackage ../development/tools/database/squirrel-sql {
-    drivers = [ mssql_jdbc mysql_jdbc postgresql_jdbc ];
+    drivers = [ jtds_jdbc mssql_jdbc mysql_jdbc postgresql_jdbc ];
   };
 
   stalin = callPackage ../development/compilers/stalin { };
···
   mysql_jdbc = callPackage ../servers/sql/mysql/jdbc { };
 
   mssql_jdbc = callPackage ../servers/sql/mssql/jdbc { };
+  jtds_jdbc = callPackage ../servers/sql/mssql/jdbc/jtds.nix { };
 
   azuredatastudio = callPackage ../applications/misc/azuredatastudio { };