Merge pull request #234 from nix-community/lvm_sort

bors.toml

@@ -11,6 +11,7 @@ status = [
   "check hybrid-tmpfs-on-root [x86_64-linux]",
   "check luks-lvm [x86_64-linux]",
   "check lvm-raid [x86_64-linux]",
+  "check lvm-sizes-sort [x86_64-linux]",
   "check mdadm [x86_64-linux]",
   "check module [x86_64-linux]",
   "check multi-device-no-deps [x86_64-linux]",

example/lvm-sizes-sort.nix

@@ -0,0 +1,69 @@
+{ disks ? [ "/dev/vdb" "/dev/vdc" ], ... }: {
+  disko.devices = {
+    disk = {
+      one = {
+        type = "disk";
+        device = builtins.elemAt disks 0;
+        content = {
+          type = "table";
+          format = "gpt";
+          partitions = [
+            {
+              name = "boot";
+              start = "0";
+              end = "100M";
+              fs-type = "fat32";
+              bootable = true;
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+              };
+            }
+            {
+              name = "primary";
+              start = "100M";
+              end = "100%";
+              content = {
+                type = "lvm_pv";
+                vg = "pool";
+              };
+            }
+          ];
+        };
+      };
+    };
+    lvm_vg = {
+      pool = {
+        type = "lvm_vg";
+        lvs = {
+          aaa = {
+            size = "1M";
+          };
+          zzz = {
+            size = "1M";
+          };
+          root = {
+            size = "100M";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [
+                "defaults"
+              ];
+            };
+          };
+          home = {
+            size = "100%FREE";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/home";
+            };
+          };
+        };
+      };
+    };
+  };
+}

linux-testing-bcachefs.nix

@@ -8,7 +8,7 @@
 buildLinux (args // {
   # NOTE: bcachefs-tools should be updated simultaneously to preserve compatibility
   version = "6.3.0-2023-05-02";
-  
+
   modDirVersion = "6.3.0";
 
   src = fetchFromGitHub {

tests/lvm-sizes-sort.nix

@@ -0,0 +1,10 @@
+{ pkgs ? (import <nixpkgs> { })
+, makeDiskoTest ? (pkgs.callPackage ./lib.nix { }).makeDiskoTest
+}:
+makeDiskoTest {
+  name = "lvm-sizes-sort";
+  disko-config = ../example/lvm-sizes-sort.nix;
+  extraTestScript = ''
+    machine.succeed("mountpoint /home");
+  '';
+}

types/lvm_vg.nix

@@ -44,36 +44,44 @@
       readOnly = true;
       type = diskoLib.jsonType;
       default =
-        diskoLib.deepMergeMap (lv:
-          lib.optionalAttrs (lv.content != null) (lv.content._meta [ "lvm_vg" config.name ])
-        ) (lib.attrValues config.lvs);
+        diskoLib.deepMergeMap
+          (lv:
+            lib.optionalAttrs (lv.content != null) (lv.content._meta [ "lvm_vg" config.name ])
+          )
+          (lib.attrValues config.lvs);
       description = "Metadata";
     };
     _create = diskoLib.mkCreateOption {
       inherit config options;
-      default = _: ''
-        readarray -t lvm_devices < <(cat "$disko_devices_dir"/lvm_${config.name})
-        vgcreate ${config.name} \
-        "''${lvm_devices[@]}"
-        ${lib.concatMapStrings (lv: ''
-          lvcreate \
-            --yes \
-            ${if lib.hasInfix "%" lv.size then "-l" else "-L"} ${lv.size} \
-            -n ${lv.name} \
-            ${lib.optionalString (lv.lvm_type != null) "--type=${lv.lvm_type}"} \
-            ${toString lv.extraArgs} \
-            ${config.name}
-          ${lib.optionalString (lv.content != null) (lv.content._create {dev = "/dev/${config.name}/${lv.name}";})}
-        '') (lib.attrValues config.lvs)}
-      '';
+      default = _:
+        let
+          sortedLvs = lib.sort (a: _: !lib.hasInfix "100%" a.size) (lib.attrValues config.lvs);
+        in
+        ''
+          readarray -t lvm_devices < <(cat "$disko_devices_dir"/lvm_${config.name})
+          vgcreate ${config.name} \
+          "''${lvm_devices[@]}"
+          ${lib.concatMapStrings (lv: ''
+            lvcreate \
+              --yes \
+              ${if lib.hasInfix "%" lv.size then "-l" else "-L"} ${lv.size} \
+              -n ${lv.name} \
+              ${lib.optionalString (lv.lvm_type != null) "--type=${lv.lvm_type}"} \
+              ${toString lv.extraArgs} \
+              ${config.name}
+            ${lib.optionalString (lv.content != null) (lv.content._create {dev = "/dev/${config.name}/${lv.name}";})}
+          '') sortedLvs}
+        '';
     };
     _mount = diskoLib.mkMountOption {
       inherit config options;
       default = _:
         let
-          lvMounts = diskoLib.deepMergeMap (lv:
-            lib.optionalAttrs (lv.content != null) (lv.content._mount { dev = "/dev/${config.name}/${lv.name}"; })
-          ) (lib.attrValues config.lvs);
+          lvMounts = diskoLib.deepMergeMap
+            (lv:
+              lib.optionalAttrs (lv.content != null) (lv.content._mount { dev = "/dev/${config.name}/${lv.name}"; })
+            )
+            (lib.attrValues config.lvs);
         in
         {
           dev = ''
@@ -87,21 +95,25 @@
       internal = true;
       readOnly = true;
       default =
-        map (lv: [
-          (lib.optional (lv.content != null) (lv.content._config "/dev/${config.name}/${lv.name}"))
-          (lib.optional (lv.lvm_type != null) {
-            boot.initrd.kernelModules = [ "dm-${lv.lvm_type}" ];
-          })
-        ]) (lib.attrValues config.lvs);
+        map
+          (lv: [
+            (lib.optional (lv.content != null) (lv.content._config "/dev/${config.name}/${lv.name}"))
+            (lib.optional (lv.lvm_type != null) {
+              boot.initrd.kernelModules = [ "dm-${lv.lvm_type}" ];
+            })
+          ])
+          (lib.attrValues config.lvs);
       description = "NixOS configuration";
     };
     _pkgs = lib.mkOption {
       internal = true;
       readOnly = true;
       type = lib.types.functionTo (lib.types.listOf lib.types.package);
-      default = pkgs: lib.flatten (map (lv:
-        lib.optional (lv.content != null) (lv.content._pkgs pkgs)
-      ) (lib.attrValues config.lvs));
+      default = pkgs: lib.flatten (map
+        (lv:
+          lib.optional (lv.content != null) (lv.content._pkgs pkgs)
+        )
+        (lib.attrValues config.lvs));
       description = "Packages";
     };
   };

types/table.nix

@@ -65,9 +65,11 @@
       readOnly = true;
       type = lib.types.functionTo diskoLib.jsonType;
       default = dev:
-        lib.foldr lib.recursiveUpdate {} (lib.imap (index: partition:
-          lib.optionalAttrs (partition.content != null) (partition.content._meta dev)
-        ) config.partitions);
+        lib.foldr lib.recursiveUpdate { } (lib.imap
+          (index: partition:
+            lib.optionalAttrs (partition.content != null) (partition.content._meta dev)
+          )
+          config.partitions);
       description = "Metadata";
     };
     _create = diskoLib.mkCreateOption {
@@ -99,9 +101,11 @@
       inherit config options;
       default = { dev }:
         let
-          partMounts = lib.foldr lib.recursiveUpdate {} (lib.imap (index: partition:
-            lib.optionalAttrs (partition.content != null) (partition.content._mount { dev = diskoLib.deviceNumbering dev index; })
-          ) config.partitions);
+          partMounts = lib.foldr lib.recursiveUpdate { } (lib.imap
+            (index: partition:
+              lib.optionalAttrs (partition.content != null) (partition.content._mount { dev = diskoLib.deviceNumbering dev index; })
+            )
+            config.partitions);
         in
         {
           dev = partMounts.dev or "";
@@ -112,9 +116,11 @@
       internal = true;
       readOnly = true;
       default = dev:
-        lib.imap (index: partition:
-          lib.optional (partition.content != null) (partition.content._config (diskoLib.deviceNumbering dev index))
-        ) config.partitions;
+        lib.imap
+          (index: partition:
+            lib.optional (partition.content != null) (partition.content._config (diskoLib.deviceNumbering dev index))
+          )
+          config.partitions;
       description = "NixOS configuration";
     };
     _pkgs = lib.mkOption {
@@ -122,9 +128,11 @@
       readOnly = true;
       type = lib.types.functionTo (lib.types.listOf lib.types.package);
       default = pkgs:
-        [ pkgs.parted pkgs.systemdMinimal ] ++ lib.flatten (map (partition:
-          lib.optional (partition.content != null) (partition.content._pkgs pkgs)
-        ) config.partitions);
+        [ pkgs.parted pkgs.systemdMinimal ] ++ lib.flatten (map
+          (partition:
+            lib.optional (partition.content != null) (partition.content._pkgs pkgs)
+          )
+          config.partitions);
       description = "Packages";
     };
   };

types/zfs_fs.nix

@@ -33,7 +33,7 @@
       internal = true;
       readOnly = true;
       type = lib.types.functionTo diskoLib.jsonType;
-      default = dev: {};
+      default = dev: { };
       description = "Metadata";
     };
     _create = diskoLib.mkCreateOption {

types/zpool.nix

@@ -85,7 +85,7 @@
               zpool import -l -R ${config.mountRoot} '${config.name}'
             ${lib.concatMapStrings (x: x.dev or "") (lib.attrValues datasetMounts)}
           '';
-          fs = (datasetMounts.fs or {}) // lib.optionalAttrs (config.mountpoint != null) {
+          fs = (datasetMounts.fs or { }) // lib.optionalAttrs (config.mountpoint != null) {
             ${config.mountpoint} = ''
               if ! findmnt ${config.name} "${rootMountPoint}${config.mountpoint}" > /dev/null 2>&1; then
                 mount ${config.name} "${rootMountPoint}${config.mountpoint}" \