bcachefs support

example/bcachefs.nix

@@ -0,0 +1,39 @@
+{ disks ? [ "/dev/vdb" ], ... }: {
+  disk = {
+    vdb = {
+      device = builtins.elemAt disks 0;
+      type = "disk";
+      content = {
+        type = "table";
+        format = "gpt";
+        partitions = [
+          {
+            type = "partition";
+            name = "ESP";
+            start = "1MiB";
+            end = "100MiB";
+            bootable = true;
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+            };
+          }
+          {
+            name = "root";
+            type = "partition";
+            start = "100MiB";
+            end = "100%";
+            part-type = "primary";
+            content = {
+              type = "filesystem";
+              format = "bcachefs";
+              mountpoint = "/";
+            };
+          }
+        ];
+      };
+    };
+  };
+}
+

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1671788672,
+        "lastModified": 1672756850,
-        "narHash": "sha256-tLkPxJuos3jki2f/TZdHn+NuMQAzN9s2E4QudylQLg0=",
+        "narHash": "sha256-Smbq3+fitwA13qsTMeaaurv09/KVbZfW7m7lINwzDGA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2c74fcd6c5fc14a61de158fb796243543f46b217",
+        "rev": "298add347c2bbce14020fcb54051f517c391196b",
         "type": "github"
       },
       "original": {

tests/bcachefs.nix

@@ -0,0 +1,18 @@
+{ pkgs ? (import <nixpkgs> { })
+, makeDiskoTest ? (pkgs.callPackage ./lib.nix { }).makeDiskoTest
+}:
+makeDiskoTest {
+  disko-config = ../example/bcachefs.nix;
+  extraTestScript = ''
+    machine.succeed("mountpoint /");
+    machine.succeed("lsblk >&2");
+  '';
+  # so that the installer boots with a bcachefs enabled kernel
+  extraConfig = {
+    boot.supportedFilesystems = [ "bcachefs" ];
+    # disable zfs so we can support latest kernel
+    nixpkgs.overlays = [(final: super: {
+      zfs = super.zfs.overrideAttrs(_: {meta.platforms = [];});}
+    )];
+  };
+}

types.nix

@@ -545,6 +545,7 @@ rec {
             else if (config.format == "ext2") then [ pkgs.e2fsprogs ]
             else if (config.format == "ext3") then [ pkgs.e2fsprogs ]
             else if (config.format == "ext4") then [ pkgs.e2fsprogs ]
+            else if (config.format == "bcachefs") then [ pkgs.bcachefs-tools ]
             else []
           );
       };