finalizing release

airootfs/usr/share/tmpmodules/initcpio.conf

@@ -23,4 +23,4 @@ kernel: linux
 # filesystem, this has no effect as the file permissions cannot be changed.
 # In this case, ensure the partition is mounted securely.
 #
-be_unsafe: false
+be_unsafe: false

airootfs/usr/share/tmpmodules/mount.conf

@@ -5,16 +5,15 @@
 # target as a usable chroot / "live" system). Filesystems are
 # automatically mounted from the partitioning module. Filesystems
 # listed here are **extra**. The filesystems listed in *extraMounts*
-# are mounted in all target systems. The filesystems listed in
-# *extraMountsEfi* are mounted in the target system **only** if
-# the host machine uses UEFI.
+# are mounted in all target systems.
 ---
 # Extra filesystems to mount. The key's value is a list of entries; each
-# entry has four keys:
+# entry has five keys:
 #   - device    The device node to mount
 #   - fs (optional) The filesystem type to use
 #   - mountPoint Where to mount the filesystem
-#   - options (optional) Extra options to pass to mount(8)
+#   - options (optional) An array of options to pass to mount
+#   - efi (optional) A boolean that when true is only mounted for UEFI installs
 #
 # The device is not mounted if the mountPoint is unset or if the fs is
 # set to unformatted.
@@ -28,29 +27,26 @@ extraMounts:
       mountPoint: /sys
     - device: /dev
       mountPoint: /dev
-      options: bind
+      options: [ bind ]
     - device: tmpfs
       fs: tmpfs
       mountPoint: /run
     - device: /run/udev
       mountPoint: /run/udev
-      options: bind
-
-extraMountsEfi:
+      options: [ bind ]
     - device: efivarfs
       fs: efivarfs
       mountPoint: /sys/firmware/efi/efivars
+      efi: true
 
 # Btrfs subvolumes to create if root filesystem is on btrfs volume.
 # If *mountpoint* is mounted already to another partition, it is ignored.
 # Separate subvolume for swapfile is handled separately and automatically.
 #
 # It is possible to prevent subvolume creation -- this is likely only relevant
 # for the root (/) subvolume -- by giving an empty string as a subvolume
-# name. In this case no subvolume will be created. When using snapper as
-# a rollback mechanism, it is recommended to **not** create a subvolume
-# for root.
-
+# name. In this case no subvolume will be created.
+#
 btrfsSubvolumes:
     - mountPoint: /
       subvolume: /@
@@ -63,3 +59,63 @@ btrfsSubvolumes:
       subvolume: /@cache
     - mountPoint: /var/log
       subvolume: /@log
+
+# The name of the btrfs subvolume holding the swapfile.  This only used when
+# a swapfile is selected and the root filesystem is btrfs
+#
+btrfsSwapSubvol: /@swap
+
+# The mount options used to mount each filesystem.
+#
+# filesystem contains the name of the filesystem or on of three special
+# values, "default", efi" and "btrfs_swap".  The logic is applied in this manner:
+#   - If the partition is the EFI partition, the "efi" entry will be used
+#   - If the fs is btrfs and the subvolume is for the swapfile,
+#     the "btrfs_swap" entry is used
+#   - If the  filesystem is an exact match for filesystem, that entry is used
+#   - If no match is found in the above, the default entry is used
+#   - If there is no match and no default entry, "defaults" is used
+#   - If the mountOptions key is not present, "defaults" is used
+#
+# Each filesystem entry contains 3 keys, all of which are optional
+#   options - An array of mount options that is used on all disk types
+#   ssdOptions - An array of mount options combined with options for ssds
+#   hddOptions - An array of mount options combined with options for hdds
+# If combining these options results in an empty array, "defaults" is used
+#
+# Example 1
+# In this example, there are specific options for ext4 and btrfs filesystems,
+# the EFI partition and the subvolume holding the btrfs swapfile.  All other
+# filesystems use the default entry.  For the btrfs filesystem, there are
+# additional options specific to hdds and ssds
+#
+# mountOptions:
+#    - filesystem: default
+#      options: [ defaults ]
+#    - filesystem: efi
+#      options: [ defaults, umask=0077 ]
+#    - filesystem: ext4
+#      options: [ defaults ]
+#    - filesystem: btrfs
+#      options: [ defaults, compress=zstd:1 ]
+#      ssdOptions: [ discard=async ]
+#      hddOptions: [ autodefrag ]
+#    - filesystem: btrfs_swap
+#      options: [ defaults, noatime ]
+#
+# Example 2
+# In this example there is a single default used by all filesystems
+#
+# mountOptions:
+#    - filesystem: default
+#      options: [ defaults ]
+#
+mountOptions:
+    - filesystem: default
+      options: [ defaults ]
+    - filesystem: efi
+      options: [ defaults, umask=0077 ]
+    - filesystem: btrfs
+      options: [ defaults, compress=zstd:1 ]
+    - filesystem: btrfs_swap
+      options: [ defaults, noatime ]