oracle-instantclient: 12.2.0.1.0 -> 19.3.0.0.0

It's now possible to download Oracle Instant Client without having to
click a checkbox to agree to the license, and then log in with an Oracle
account to start the download, at least on Linux (for now).

Darwin still seems to be at 18.1, and version numbers haven't been that
aligned recently, so allow different version numbers per platform.

pkgs/development/libraries/oracle-instantclient/default.nix

@@ -1,46 +1,95 @@
-{ stdenv, requireFile, autoPatchelfHook, fixDarwinDylibNames, unzip, libaio, makeWrapper, odbcSupport ? false, unixODBC }:
+{ stdenv
+, fetchurl
+, requireFile
+, autoPatchelfHook
+, fixDarwinDylibNames
+, unzip
+, libaio
+, makeWrapper
+, odbcSupport ? true
+, unixODBC
+}:
 
 assert odbcSupport -> unixODBC != null;
 
 let
   inherit (stdenv.lib) optional optionals optionalString;
 
-  baseVersion = "12.2";
-  version = "${baseVersion}.0.1.0";
-
-  requireSource = component: arch: version: rel: hash: (requireFile rec {
-    name = "instantclient-${component}-${arch}-${version}" + (optionalString (rel != "") "-${rel}") + ".zip";
-    url = "http://www.oracle.com/technetwork/database/database-technologies/instant-client/downloads/index.html";
-    sha256 = hash;
-  });
-
   throwSystem = throw "Unsupported system: ${stdenv.hostPlatform.system}";
 
+  # assemble list of components
+  components = [ "basic" "sdk" "sqlplus" ] ++ optional odbcSupport "odbc";
+
+  # determine the version number, there might be different ones per architecture
+  version = {
+    "x86_64-linux" = "19.3.0.0.0";
+    "x86_64-darwin" = "18.1.0.0.0";
+  }."${stdenv.hostPlatform.system}" or throwSystem;
+
+  # hashes per component and architecture
+  hashes = {
+    "x86_64-linux" = {
+      "basic"   = "1yk4ng3a9ka1mzgfph9br6rwclagbgfvmg6kja11nl5dapxdzaxy";
+      "sdk"     = "115v1gqr0czy7dcf2idwxhc6ja5b0nind0mf1rn8iawgrw560l99";
+      "sqlplus" = "0zj5h84ypv4n4678kfix6jih9yakb277l9hc0819iddc0a5slbi5";
+      "odbc"    = "1g1z6pdn76dp440fh49pm8ijfgjazx4cvxdi665fsr62h62xkvch";
+    };
+    "x86_64-darwin" = {
+      "basic"   = "fac3cdaaee7526f6c50ff167edb4ba7ab68efb763de24f65f63fb48cc1ba44c0";
+      "sdk"     = "98e6d797f1ce11e59b042b232f62380cec29ec7d5387b88a9e074b741c13e63a";
+      "sqlplus" = "02e66dc52398fced75e7efcb6b4372afcf617f7d88344fb7f0f4bb2bed371f3b";
+      "odbc"    = "5d0cdd7f9dd2e27affbc9b36ef9fc48e329713ecd36905fdd089366e365ae8a2";
+    };
+  }."${stdenv.hostPlatform.system}" or throwSystem;
+
+  # rels per component and architecture, optional
+  rels = {
+    "x86_64-darwin" = {
+      "sdk" = "2";
+    };
+  }."${stdenv.hostPlatform.system}" or {};
+
+  # convert platform to oracle architecture names
   arch = {
     "x86_64-linux" = "linux.x64";
     "x86_64-darwin" = "macos.x64";
   }."${stdenv.hostPlatform.system}" or throwSystem;
 
-  srcs = {
+  # calculate the filename of a single zip file
-    "x86_64-linux" = [
+  srcFilename = component: arch: version: rel:
-      (requireSource "basic" arch version "" "5015e3c9fba84e009f7519893f798a1622c37d1ae2c55104ff502c52a0fe5194")
+    "instantclient-${component}-${arch}-${version}" +
-      (requireSource "sdk" arch version "" "7f404c3573c062ce487a51ac4cfe650c878d7edf8e73b364ec852645ed1098cb")
+    (optionalString (rel != "") "-${rel}") +
-      (requireSource "sqlplus" arch version "" "d49b2bd97376591ca07e7a836278933c3f251875c215044feac73ba9f451dfc2") ]
+    (optionalString (arch == "linux.x64") "dbru") + # ¯\_(ツ)_/¯
-      ++ optional odbcSupport (requireSource "odbc" arch version "2" "365a4ae32c7062d9fbc3fb41add748e7881f774484a175a4b41a2c294ce9095d");
+    ".zip";
-    "x86_64-darwin" = [
-      (requireSource "basic" arch version "2" "3ed3102e5a24f0da638694191edb34933309fb472eb1df21ad5c86eedac3ebb9")
-      (requireSource "sdk" arch version "2" "e0befca9c4e71ebc9f444957ffa70f01aeeec5976ea27c40406471b04c34848b")
-      (requireSource "sqlplus" arch version "2" "d147cbb5b2a954fdcb4b642df4f0bd1153fd56e0f56e7fa301601b4f7e2abe0e") ]
-      ++ optional odbcSupport (requireSource "odbc" arch version "2" "1805c1ab6c8c5e8df7bdcc35d7f2b94c329ecf4dff9bde55d5f9b159ecd8b64e");
-  }."${stdenv.hostPlatform.system}" or throwSystem;
 
+  # fetcher for the clickthrough artifacts (requiring manual download)
+  fetchClickThrough =  srcFilename: hash: (requireFile {
+    name = srcFilename;
+    url = "https://www.oracle.com/database/technologies/instant-client/downloads.html";
+    sha256 = hash;
+  });
+
+  # fetcher for the non clickthrough artifacts
+  fetchSimple = srcFilename: hash: fetchurl {
+    url = "https://download.oracle.com/otn_software/linux/instantclient/193000/${srcFilename}";
+    sha256 = hash;
+  };
+
+  # pick the appropriate fetcher depending on the platform
+  fetcher = if stdenv.hostPlatform.system == "x86_64-linux" then fetchSimple else fetchClickThrough;
+
+  # assemble srcs
+  srcs = map (component:
+    (fetcher (srcFilename component arch version rels."${component}" or "") hashes."${component}" or ""))
+  components;
+
+  pname = "oracle-instantclient";
   extLib = stdenv.hostPlatform.extensions.sharedLibrary;
-in stdenv.mkDerivation rec {
+in stdenv.mkDerivation {
-  inherit version srcs;
+  inherit pname version srcs;
-  name = "oracle-instantclient-${version}";
 
   buildInputs = [ stdenv.cc.cc.lib ]
-    ++ optionals (stdenv.isLinux) [ libaio ]
+    ++ optional stdenv.isLinux libaio
     ++ optional odbcSupport unixODBC;
 
   nativeBuildInputs = [ makeWrapper unzip ]
@@ -52,20 +101,22 @@ in stdenv.mkDerivation rec {
   unpackCmd = "unzip $curSrc";
 
   installPhase = ''
-    mkdir -p "$out/"{bin,include,"share/java","share/${name}/demo/"} $lib/lib
+    mkdir -p "$out/"{bin,include,lib,"share/java","share/${pname}-${version}/demo/"} $lib/lib
     install -Dm755 {adrci,genezi,uidrvci,sqlplus} $out/bin
     install -Dm644 *${extLib}* $lib/lib
-
     install -Dm644 *.jar $out/share/java
     install -Dm644 sdk/include/* $out/include
-    install -Dm644 sdk/demo/* $out/share/${name}/demo
+    install -Dm644 sdk/demo/* $out/share/${pname}-${version}/demo
 
+    # provide alias
+    ln -sfn $out/bin/sqlplus $out/bin/sqlplus64
+  '';
+
+  postFixup = ''
     # PECL::oci8 will not build without this
     # this symlink only exists in dist zipfiles for some platforms
     ln -sfn $out/lib/libclntsh${extLib}.12.1 $out/lib/libclntsh${extLib}
-  '';
+  '' + optionalString stdenv.isDarwin ''
-
-  postFixup = optionalString stdenv.isDarwin ''
     for exe in "$out/bin/"* ; do
       if [ ! -L "$exe" ]; then
         install_name_tool -add_rpath "$lib/lib" "$exe"