zfsLegacyCrypto: remove

This package was only mandatory for migration for people on zfsUnstable
in nixos unstable.

nixos/modules/rename.nix

@@ -256,6 +256,7 @@ with lib;
     (mkRemovedOptionModule [ "fonts" "fontconfig" "forceAutohint" ] "")
     (mkRemovedOptionModule [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ] "")
     (mkRemovedOptionModule [ "virtualisation" "xen" "qemu" ] "You don't need this option anymore, it will work without it.")
+    (mkRemovedOptionModule [ "boot" "zfs" "enableLegacyCrypto" ] "The corresponding package was removed from nixpkgs.")
 
     # ZSH
     (mkRenamedOptionModule [ "programs" "zsh" "enableSyntaxHighlighting" ] [ "programs" "zsh" "syntaxHighlighting" "enable" ])

nixos/modules/tasks/filesystems/zfs.nix

@@ -23,11 +23,7 @@ let
 
   kernel = config.boot.kernelPackages;
 
-  packages = if config.boot.zfs.enableLegacyCrypto then {
-    spl = kernel.splLegacyCrypto;
-    zfs = kernel.zfsLegacyCrypto;
-    zfsUser = pkgs.zfsLegacyCrypto;
-  } else if config.boot.zfs.enableUnstable then {
+  packages = if config.boot.zfs.enableUnstable then {
     spl = kernel.splUnstable;
     zfs = kernel.zfsUnstable;
     zfsUser = pkgs.zfsUnstable;
@@ -117,27 +113,6 @@ in
           '';
       };
 
-      enableLegacyCrypto = mkOption {
-        type = types.bool;
-        default = false;
-        description = ''
-          Enabling this option will allow you to continue to use the old format for
-          encrypted datasets. With the inclusion of stability patches the format of
-          encrypted datasets has changed. They can still be accessed and mounted but
-          in read-only mode mounted. It is highly recommended to convert them to
-          the new format.
-
-          This option is only for convenience to people that cannot convert their
-          datasets to the new format yet and it will be removed in due time.
-
-          For migration strategies from old format to this new one, check the Wiki:
-          https://nixos.wiki/wiki/NixOS_on_ZFS#Encrypted_Dataset_Format_Change
-
-          See https://github.com/zfsonlinux/zfs/pull/6864 for more details about
-          the stability patches.
-          '';
-      };
-
       extraPools = mkOption {
         type = types.listOf types.str;
         default = [];

pkgs/os-specific/linux/spl/default.nix

@@ -73,11 +73,4 @@ in
       sha256 = "07qlx7l23y696gzyy7ynly7n1141w66y21gkmxiia2xwldj8klkx";
       patches = [ ./install_prefix.patch ];
     };
-
-    splLegacyCrypto = common {
-      version = "2018-01-24";
-      rev = "23602fdb39e1254c669707ec9d2d0e6bcdbf1771";
-      sha256 = "09py2dwj77f6s2qcnkwdslg5nxb3hq2bq39zpxpm6msqyifhl69h";
-      patches = [ ./install_prefix.patch ];
-    };
 }

pkgs/os-specific/linux/zfs/default.nix

@@ -9,7 +9,7 @@
 , gawk, gnugrep, gnused, systemd
 
 # Kernel dependencies
-, kernel ? null, spl ? null, splUnstable ? null, splLegacyCrypto ? null
+, kernel ? null, spl ? null, splUnstable ? null
 }:
 
 with stdenv.lib;
@@ -194,28 +194,4 @@ in {
 
     spl = splUnstable;
   };
-
-  # TODO: Remove this module before 18.09
-  # also remove boot.zfs.enableLegacyCrypto
-  zfsLegacyCrypto = common {
-    # comment/uncomment if breaking kernel versions are known
-    incompatibleKernelVersion = null;
-
-    # this package should point to a version / git revision compatible with the latest kernel release
-    version = "2018-02-01";
-
-    rev = "4c46b99d24a6e71b3c72462c11cb051d0930ad60";
-    sha256 = "011lcp2x44jgfzqqk2gjmyii1v7rxcprggv20prxa3c552drsx3c";
-    isUnstable = true;
-
-    extraPatches = [
-      (fetchpatch {
-        url = "https://github.com/Mic92/zfs/compare/4c46b99d24a6e71b3c72462c11cb051d0930ad60...nixos-zfs-2018-02-01.patch";
-        sha256 = "1gqmgqi39qhk5kbbvidh8f2xqq25vj58i9x0wjqvcx6a71qj49ch";
-      })
-    ];
-
-    spl = splLegacyCrypto;
-  };
-
 }

pkgs/top-level/all-packages.nix

@@ -14024,7 +14024,7 @@ with pkgs;
     sch_cake = callPackage ../os-specific/linux/sch_cake { };
 
     inherit (callPackage ../os-specific/linux/spl {})
-      splStable splUnstable splLegacyCrypto;
+      splStable splUnstable;
 
     spl = splStable;
 
@@ -14057,7 +14057,7 @@ with pkgs;
     inherit (callPackage ../os-specific/linux/zfs {
       configFile = "kernel";
       inherit kernel spl;
-     }) zfsStable zfsUnstable zfsLegacyCrypto;
+     }) zfsStable zfsUnstable;
 
      zfs = zfsStable;
   });
@@ -14605,7 +14605,7 @@ with pkgs;
 
   inherit (callPackage ../os-specific/linux/zfs {
     configFile = "user";
-  }) zfsStable zfsUnstable zfsLegacyCrypto;
+  }) zfsStable zfsUnstable;
 
   zfs = zfsStable;