From 8428e63f3f425b224cd3f6670eb20985163f7680 Mon Sep 17 00:00:00 2001
From: CyberLeo <cyberleo@cyberleo.net>
Date: Sun, 13 May 2012 23:26:44 -0500
Subject: [PATCH] Rework to support multiple overlays and require less
 hardcoding of zpool datasets

---
 apply                                         | 206 ++++++++++++++++++
 .../Mk_bsd.local.mk-strip-perl5-python.patch  |   0
 .../Mk_bsd.local.mk-strip-perl5-python.patch  |   0
 .../deprecated/devel_glib20_Makefile.patch    |   0
 {patch => cdn/patch}/deprecated/refactor      |   0
 .../deprecated/www_squid_Makefile.patch       |   0
 {ports => cdn/ports}/Makefile.local           |   0
 {ports => cdn/ports}/misc-cdn/Makefile        |   0
 .../ports}/misc-cdn/bash-config/Makefile      |   0
 .../ports}/misc-cdn/bash-config/distinfo      |   0
 .../ports}/misc-cdn/bash-config/pkg-descr     |   0
 .../ports}/misc-cdn/crc32sum/Makefile         |   0
 .../ports}/misc-cdn/crc32sum/distinfo         |   0
 .../ports}/misc-cdn/crc32sum/pkg-descr        |   0
 {ports => cdn/ports}/misc-cdn/flag/Makefile   |   0
 {ports => cdn/ports}/misc-cdn/flag/distinfo   |   0
 {ports => cdn/ports}/misc-cdn/flag/pkg-descr  |   0
 .../ports}/misc-cdn/freebsd-rc/Makefile       |   0
 .../ports}/misc-cdn/freebsd-rc/distinfo       |   0
 .../ports}/misc-cdn/freebsd-rc/pkg-descr      |   0
 {ports => cdn/ports}/misc-cdn/shlib/Makefile  |   0
 {ports => cdn/ports}/misc-cdn/shlib/distinfo  |   0
 {ports => cdn/ports}/misc-cdn/shlib/pkg-descr |   0
 .../net/rsync/files/patch-server_pause.patch  |   0
 update                                        | 121 ----------
 25 files changed, 206 insertions(+), 121 deletions(-)
 create mode 100755 apply
 rename {patch => cdn/patch}/Mk_bsd.local.mk-strip-perl5-python.patch (100%)
 rename {patch => cdn/patch}/deprecated/Mk_bsd.local.mk-strip-perl5-python.patch (100%)
 rename {patch => cdn/patch}/deprecated/devel_glib20_Makefile.patch (100%)
 rename {patch => cdn/patch}/deprecated/refactor (100%)
 rename {patch => cdn/patch}/deprecated/www_squid_Makefile.patch (100%)
 rename {ports => cdn/ports}/Makefile.local (100%)
 rename {ports => cdn/ports}/misc-cdn/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/bash-config/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/bash-config/distinfo (100%)
 rename {ports => cdn/ports}/misc-cdn/bash-config/pkg-descr (100%)
 rename {ports => cdn/ports}/misc-cdn/crc32sum/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/crc32sum/distinfo (100%)
 rename {ports => cdn/ports}/misc-cdn/crc32sum/pkg-descr (100%)
 rename {ports => cdn/ports}/misc-cdn/flag/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/flag/distinfo (100%)
 rename {ports => cdn/ports}/misc-cdn/flag/pkg-descr (100%)
 rename {ports => cdn/ports}/misc-cdn/freebsd-rc/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/freebsd-rc/distinfo (100%)
 rename {ports => cdn/ports}/misc-cdn/freebsd-rc/pkg-descr (100%)
 rename {ports => cdn/ports}/misc-cdn/shlib/Makefile (100%)
 rename {ports => cdn/ports}/misc-cdn/shlib/distinfo (100%)
 rename {ports => cdn/ports}/misc-cdn/shlib/pkg-descr (100%)
 rename {ports => cdn/ports}/net/rsync/files/patch-server_pause.patch (100%)
 delete mode 100755 update

diff --git a/apply b/apply
new file mode 100755
index 0000000..4634057
--- /dev/null
+++ b/apply
@@ -0,0 +1,206 @@
+#!/bin/sh -e
+
+# Run as root
+[ "$(id -u)" -eq 0 ] || exec sudo "${0}" "${@}"
+cd "$(dirname "${0}")"
+
+meh() { printf " \033[1;32m*\033[0m %s\n" "${*}"; }
+omg() { printf " \033[1;33m*\033[0m %s\n" "${*}"; }
+wtf() { printf " \033[1;31m*\033[0m %s\n" "${*}"; kill $$; exit 1; }
+
+# Return the zpool name for a given dataset
+zfs_ds_pool() {
+  [ "${1}" ] || return 1
+  echo "${1%%/*}"
+}
+
+# Make sure the datasets have the same pool
+zfs_is_same_pool() {
+  [ "${1}" -a "${2}" ] || return 1
+  [ "$(zfs_ds_pool "${1}")" = "$(zfs_ds_pool "${2}")" ]
+}
+
+# Translate a mountpoint into its containing dataset name
+zfs_mount_to_ds() {
+  [ "${1}" ] || return 1
+  zfs list -H -o name "${1}"
+}
+
+# Returns the mountpoint for a given dataset
+zfs_ds_mount() {
+  [ "${1}" ] || return 1
+  zfs get -H -o value mountpoint "${1}"
+}
+
+# Make sure the passed directory corresponds exactly
+# with its containing dataset's mountpoint
+zfs_is_mountpoint() {
+  [ "${1}" ] || return 1
+  ds="$(zfs_mount_to_ds "${1}")"
+  [ "${ds}" ] || return 1
+  mp="$(zfs_ds_mount "${ds}")"
+  [ "${mp}" = "${1}" ]
+}
+
+# Fetch the origin snapshot for a given dataset
+zfs_ds_origin() {
+  [ "${1}" ] || return 1
+  zfs get -H -o value origin "${1}"
+}
+
+# Fetch the origin dataset for a given dataset
+zfs_ds_origin_ds() {
+  [ "${1}" ] || return 1
+  sn="$(zfs_ds_origin "${1}")"
+  echo "${sn%%@*}"
+}
+
+# List all snapshots for a given dataset, sorted by creation time
+zfs_ds_snapshots() {
+  [ "${1}" ] || return 1
+  zfs list -rHt snapshot -d 1 -o name -s creation "${1}" | sed -e 's/^[^@]*@//'
+}
+
+# Get creation time in seconds since epoch for given dataset
+zfs_ds_creation() {
+  [ "${1}" ] || return 1
+  zfs get -H -p -o value creation "${1}"
+}
+
+zfs_tests() {
+  set +e -x
+  zfs_is_same_pool "mtumishi/srv/ports/upstream/ports" "mtumishi/devel/ports"; echo $?
+
+  zfs_mount_to_ds "/usr/ports"
+  zfs_mount_to_ds "/usr/ports/misc"
+
+  zfs_ds_mount "mtumishi/devel/ports"
+
+  zfs_is_mountpoint "/usr/ports"; echo $?
+  zfs_is_mountpoint "/usr/ports/misc"; echo $?
+
+  zfs_ds_origin "mtumishi/devel/ports"
+  zfs_ds_origin_ds "mtumishi/devel/ports"
+
+  zfs_ds_snapshots "mtumishi/srv/ports/upstream/ports"
+
+  zfs_ds_creation "mtumishi/devel/ports"
+  set +x -e
+}
+
+ports_tree_valid() {
+  [ "${1}" ] || return 1
+  [ -f "${1}/COPYRIGHT" -a -f "${1}/Makefile" -a -d "${1}/Mk" ]
+}
+
+overlays() {
+  ( cd "${overlay_fs}"
+    ls -1 | while read ovl
+    do
+      [ -d "${ovl}" -a -d "${ovl}/ports" -a -d "${ovl}/patch" ] || continue
+      echo "${ovl}"
+    done
+  )
+}
+
+#zfs_tests
+#exit
+
+# Location of overlays (Defaults to directory containing this script)
+overlay_fs="$(realpath "$(dirname "${0}")")"
+
+# Target ports tree (Defaults to /usr/ports)
+ports_fs="/usr/ports"
+
+# Upstream ports tree (Defaults to ../upstream/ports)
+upstream_fs="$(realpath "${overlay_fs}/../upstream/ports")"
+
+# Dataset to hold temporary datasets (defaults to dataset holding overlays)
+temp_ds="$(zfs_mount_to_ds "${overlay_fs}")"
+prep_ds="${temp_ds}/prepare"
+
+# Compute upstream dataset name from upstream filesystem
+zfs_is_mountpoint "${upstream_fs}" || { echo "Upstream filesystem ${upstream_fs} is not a ZFS dataset" >&2; exit 1; }
+upstream_ds="$(zfs_mount_to_ds "${upstream_fs}")"
+[ "${upstream_ds}" ] || { echo "Unable to get dataset for ${upstream_fs}" >&2; exit 1; }
+
+# Compute target ports dataset name; synthesize a new one if nonexistent
+if zfs_is_mountpoint "${ports_fs}"
+then
+  ports_ds="$(zfs_mount_to_ds "${ports_fs}")"
+  [ "$(zfs_ds_origin_ds "${ports_ds}")" = "${upstream_ds}" ] || wtf "Ports dataset is not a descendent of upstream dataset"
+else
+  # Compute a temporary dataset name for ports tree
+  ports_ds="${temp_ds}/liveports"
+  create_ports=true
+  omg "Unable to get dataset for ${ports_fs}; ports tree will be placed here instead:"
+  omg " ${ports_ds}"
+  omg "Make sure you move it to where you want it afterwards!"
+fi
+
+# Get most recent upstream snapshot; whine if it's more than 24 hours old
+upstream_snap="$(zfs_ds_snapshots "${upstream_ds}" | tail -n 1)"
+[ "${upstream_snap}" ] || wtf "No snapshots available for ${upstream_ds}"
+upstream_snap_age="$(( $(date +%s) - $(zfs_ds_creation "${upstream_ds}@${upstream_snap}") ))"
+[ "${upstream_snap_age}" -le 86400 ] || omg "Snapshot is stale! (${upstream_snap_age} seconds)"
+
+# Make sure the snapshot actually looks like a ports tree
+ports_tree_valid "${upstream_fs}/.zfs/snapshot/${upstream_snap}" || wtf "This sure is an odd-looking ports tree... ${upstream_fs}"
+
+# Make sure nothing is /
+[ "${ports_fs}" -a "${ports_fs}" != '/' ] || wtf "ports_fs is / ?!"
+[ "${upstream_fs}" -a "${upstream_fs}" != '/' ] || wtf "usptream_fs is / ?!"
+
+# All tests pass! Now perform the overlay
+
+meh Clone
+zfs clone "${upstream_ds}@${upstream_snap}" "${prep_ds}" || wtf "Clone failed"
+zfs set atime=off "${prep_ds}" || wtf "atimes failed"
+prep_fs="$(zfs_ds_mount "${prep_ds}")"
+
+overlays | while read ovl
+do
+  meh "=> Applying ${ovl} <="
+
+  meh Overlay
+  ( cd "${overlay_fs}/${ovl}/ports"; find * | cpio -pR root:wheel "${prep_fs}" ) || wtf "overlay failed"
+
+  meh Patch
+  for patch in "${overlay_fs}/${ovl}/patch"/*.patch
+  do
+    meh "... ${patch##*/}"
+    ( cd "${prep_fs}"; patch -p0 ) < "${patch}" || wtf "patch failed"
+  done
+done
+
+meh Install
+zfs set readonly=on "${prep_ds}" || wtf "readonly failed"
+
+# Remember and unmount any null-mounts of the filesystem that is about to be replaced
+umount_and_generate_mount_lines() {
+  mount | grep '(nullfs, ' | grep "^${ports_fs} " | while read null_src null_on null_dst null_opt
+  do
+    # Figure out if mount is read-only
+    mount_flags=""
+    case "${null_opt}" in
+    *read-only*) mount_flags="-r"
+    esac
+    # Craft a mount line
+    echo "echo '${null_dst}'; /sbin/mount -t nullfs ${mount_flags} '${null_src}' '${null_dst}';"
+    meh "Unmounting ${null_dst}" >&2
+    /sbin/umount "${null_dst}"
+  done
+}
+remount_cmd="$(umount_and_generate_mount_lines)"
+
+# Half of this is conditional on the old ports tree's existence
+[ "${create_ports}" ] || zfs set mountpoint=legacy "${ports_ds}" || wtf "failed hiding old ports"
+zfs set mountpoint="${ports_fs}" "${prep_ds}" || wtf "failed mounting new ports"
+[ "${create_ports}" ] || zfs destroy "${ports_ds}" || wtf "failed destroying old ports"
+zfs rename "${prep_ds}" "${ports_ds}" || wtf "failed renaming ports"
+
+# Remount null-mounts of this filesystem
+[ "${remount_cmd}" ] && meh "Remounting filesystems"
+eval "${remount_cmd}"
+
+echo "All done!"
diff --git a/patch/Mk_bsd.local.mk-strip-perl5-python.patch b/cdn/patch/Mk_bsd.local.mk-strip-perl5-python.patch
similarity index 100%
rename from patch/Mk_bsd.local.mk-strip-perl5-python.patch
rename to cdn/patch/Mk_bsd.local.mk-strip-perl5-python.patch
diff --git a/patch/deprecated/Mk_bsd.local.mk-strip-perl5-python.patch b/cdn/patch/deprecated/Mk_bsd.local.mk-strip-perl5-python.patch
similarity index 100%
rename from patch/deprecated/Mk_bsd.local.mk-strip-perl5-python.patch
rename to cdn/patch/deprecated/Mk_bsd.local.mk-strip-perl5-python.patch
diff --git a/patch/deprecated/devel_glib20_Makefile.patch b/cdn/patch/deprecated/devel_glib20_Makefile.patch
similarity index 100%
rename from patch/deprecated/devel_glib20_Makefile.patch
rename to cdn/patch/deprecated/devel_glib20_Makefile.patch
diff --git a/patch/deprecated/refactor b/cdn/patch/deprecated/refactor
similarity index 100%
rename from patch/deprecated/refactor
rename to cdn/patch/deprecated/refactor
diff --git a/patch/deprecated/www_squid_Makefile.patch b/cdn/patch/deprecated/www_squid_Makefile.patch
similarity index 100%
rename from patch/deprecated/www_squid_Makefile.patch
rename to cdn/patch/deprecated/www_squid_Makefile.patch
diff --git a/ports/Makefile.local b/cdn/ports/Makefile.local
similarity index 100%
rename from ports/Makefile.local
rename to cdn/ports/Makefile.local
diff --git a/ports/misc-cdn/Makefile b/cdn/ports/misc-cdn/Makefile
similarity index 100%
rename from ports/misc-cdn/Makefile
rename to cdn/ports/misc-cdn/Makefile
diff --git a/ports/misc-cdn/bash-config/Makefile b/cdn/ports/misc-cdn/bash-config/Makefile
similarity index 100%
rename from ports/misc-cdn/bash-config/Makefile
rename to cdn/ports/misc-cdn/bash-config/Makefile
diff --git a/ports/misc-cdn/bash-config/distinfo b/cdn/ports/misc-cdn/bash-config/distinfo
similarity index 100%
rename from ports/misc-cdn/bash-config/distinfo
rename to cdn/ports/misc-cdn/bash-config/distinfo
diff --git a/ports/misc-cdn/bash-config/pkg-descr b/cdn/ports/misc-cdn/bash-config/pkg-descr
similarity index 100%
rename from ports/misc-cdn/bash-config/pkg-descr
rename to cdn/ports/misc-cdn/bash-config/pkg-descr
diff --git a/ports/misc-cdn/crc32sum/Makefile b/cdn/ports/misc-cdn/crc32sum/Makefile
similarity index 100%
rename from ports/misc-cdn/crc32sum/Makefile
rename to cdn/ports/misc-cdn/crc32sum/Makefile
diff --git a/ports/misc-cdn/crc32sum/distinfo b/cdn/ports/misc-cdn/crc32sum/distinfo
similarity index 100%
rename from ports/misc-cdn/crc32sum/distinfo
rename to cdn/ports/misc-cdn/crc32sum/distinfo
diff --git a/ports/misc-cdn/crc32sum/pkg-descr b/cdn/ports/misc-cdn/crc32sum/pkg-descr
similarity index 100%
rename from ports/misc-cdn/crc32sum/pkg-descr
rename to cdn/ports/misc-cdn/crc32sum/pkg-descr
diff --git a/ports/misc-cdn/flag/Makefile b/cdn/ports/misc-cdn/flag/Makefile
similarity index 100%
rename from ports/misc-cdn/flag/Makefile
rename to cdn/ports/misc-cdn/flag/Makefile
diff --git a/ports/misc-cdn/flag/distinfo b/cdn/ports/misc-cdn/flag/distinfo
similarity index 100%
rename from ports/misc-cdn/flag/distinfo
rename to cdn/ports/misc-cdn/flag/distinfo
diff --git a/ports/misc-cdn/flag/pkg-descr b/cdn/ports/misc-cdn/flag/pkg-descr
similarity index 100%
rename from ports/misc-cdn/flag/pkg-descr
rename to cdn/ports/misc-cdn/flag/pkg-descr
diff --git a/ports/misc-cdn/freebsd-rc/Makefile b/cdn/ports/misc-cdn/freebsd-rc/Makefile
similarity index 100%
rename from ports/misc-cdn/freebsd-rc/Makefile
rename to cdn/ports/misc-cdn/freebsd-rc/Makefile
diff --git a/ports/misc-cdn/freebsd-rc/distinfo b/cdn/ports/misc-cdn/freebsd-rc/distinfo
similarity index 100%
rename from ports/misc-cdn/freebsd-rc/distinfo
rename to cdn/ports/misc-cdn/freebsd-rc/distinfo
diff --git a/ports/misc-cdn/freebsd-rc/pkg-descr b/cdn/ports/misc-cdn/freebsd-rc/pkg-descr
similarity index 100%
rename from ports/misc-cdn/freebsd-rc/pkg-descr
rename to cdn/ports/misc-cdn/freebsd-rc/pkg-descr
diff --git a/ports/misc-cdn/shlib/Makefile b/cdn/ports/misc-cdn/shlib/Makefile
similarity index 100%
rename from ports/misc-cdn/shlib/Makefile
rename to cdn/ports/misc-cdn/shlib/Makefile
diff --git a/ports/misc-cdn/shlib/distinfo b/cdn/ports/misc-cdn/shlib/distinfo
similarity index 100%
rename from ports/misc-cdn/shlib/distinfo
rename to cdn/ports/misc-cdn/shlib/distinfo
diff --git a/ports/misc-cdn/shlib/pkg-descr b/cdn/ports/misc-cdn/shlib/pkg-descr
similarity index 100%
rename from ports/misc-cdn/shlib/pkg-descr
rename to cdn/ports/misc-cdn/shlib/pkg-descr
diff --git a/ports/net/rsync/files/patch-server_pause.patch b/cdn/ports/net/rsync/files/patch-server_pause.patch
similarity index 100%
rename from ports/net/rsync/files/patch-server_pause.patch
rename to cdn/ports/net/rsync/files/patch-server_pause.patch
diff --git a/update b/update
deleted file mode 100755
index fd38bc3..0000000
--- a/update
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/bin/sh
-
-# Run as root
-[ "$(id -u)" -eq 0 ] || exec sudo "${0}" "${@}"
-cd "$(dirname "${0}")"
-
-[ "${1}" = "-n" ] && NO_SYNC=true
-
-meh() { printf " \033[1;32m*\033[0m %s\n" "${*}"; }
-omg() { printf " \033[1;33m*\033[0m %s\n" "${*}"; }
-wtf() { printf " \033[1;31m*\033[0m %s\n" "${*}"; kill $$; exit 1; }
-
-sync="rsync://paka/freebsd-ports"
-
-sync_opts="--archive --compress --delete --hard-links --sparse --stats --verbose"
-
-zpool="amani"
-
-ports=${zpool}/ports
-upstream=${zpool}/srcs/freebsd/ports/upstream
-prepare=${zpool}/srcs/freebsd/ports/prepare
-
-today="$(date +%Y-%m-%d)"
-upstream_fs="$(zfs get -H -o value mountpoint "${upstream}")"
-
-# Check if target ports tree actually exists; otherwise, assume it's safe to replace
-if zfs list "${ports}" >&- 2>&-
-then
-  ports_exists="YES"
-  ports_origin="$(zfs get -H -o value origin "${ports}")"
-  ports_origin="${ports_origin%%@*}"
-  ports_fs="$(zfs get -H -o value mountpoint "${ports}")"
-
-  # Make sure the ports tree is a descendent of the ports upstream
-  [ "${ports_origin}" = "${upstream}" ] || wtf "Target ${ports} is not a child of ${upstream}
-  (is ${ports_origin})"
-fi
-ports_fs="${ports_fs:-/usr/ports}"
-
-if [ -z "${NO_SYNC}" ]
-then
-  # Compute the next available snapshot
-  last_snapshot="$(zfs list -rHt snapshot -o name "${upstream}" | grep "@${today}_" | sort | tail -n 1 | sed -e 's/^.*_\([0-9]\{2\}\)$/\1/')"
-  if [ "${last_snapshot}" ]
-  then
-    snapshot="$(printf "${today}_%02u" "$(( ${last_snapshot} + 1 ))")"
-    echo "${today}_${last_snapshot} -> ${snapshot}"
-  else
-    snapshot="${today}_00"
-    echo "None -> ${snapshot}"
-  fi
-else
-  # Don't bother creating a new snapshot if the tree will not be synchronized
-  last_snapshot="$(zfs list -rHt snapshot -o name "${upstream}" | sort | tail -n 1)"
-  snapshot="${last_snapshot##*@}"
-  echo "Using existing snapshot ${snapshot}"
-fi
-
-# Bail out if anything is /
-[ -z "${ports_fs}" ] && wtf "ports_fs is / ?!"
-[ -z "${upstream_fs}" ] && wtf "upstream_fs is / ?!"
-[ -z "${ports_fs}"  -o -z "${upstream_fs}" ] && wtf "Writing to /? Are you nuts?"
-
-if [ -z "${NO_SYNC}" ]
-then
-  meh "Update"
-  rsync ${sync_opts} "${sync}/" "${upstream_fs}/" || wtf "update failed"
-
-  meh "Snapshot"
-  zfs snapshot "${upstream}@${snapshot}" || wtf "snapshot failed"
-fi
-
-meh "Clone"
-zfs clone "${upstream}@${snapshot}" "${prepare}" || wtf "clone failed"
-zfs set atime=off "${prepare}" || wtf "atime-off failed"
-
-# Resolve filesystem mountpoints, now that everything should exist
-prepare_fs="$(zfs get -H -o value mountpoint "${prepare}")"
-
-meh "Overlay"
-( cd ports; find * | cpio -pR root:wheel "${prepare_fs}" ) || wtf "overlay failed"
-
-meh "Patch"
-for patch in patch/*.patch
-do
-  meh "... ${patch}"
-  ( cd "${prepare_fs}"; patch -p0 ) < "${patch}" || wtf "patch failed"
-done
-
-meh "Install"
-zfs set readonly=on "${prepare}" || wtf "readonly failed"
-
-# Remember and unmount any null-mounts of the filesystem that is about to be replaced
-umount_and_generate_mount_lines() {
-  mount | grep '(nullfs, ' | grep "^/usr/ports " | while read null_src null_on null_dst null_opt
-  do
-    # Figure out if mount is read-only
-    mount_flags=""
-    case "${null_opt}" in
-    *read-only*) mount_flags="-r"
-    esac
-    # Craft a mount line
-    echo "echo '${null_dst}'; /sbin/mount -t nullfs ${mount_flags} '${null_src}' '${null_dst}';"
-    meh "Unmounting ${null_dst}" >&2
-    /sbin/umount "${null_dst}"
-  done
-}
-remount_cmd="$(umount_and_generate_mount_lines)"
-
-# Half of this is conditional on the old ports tree's existence
-[ -z "${ports_exists}" ] || zfs rename "${ports}" "${ports}-bak" || wtf "backup rename failed"
-zfs rename "${prepare}" "${ports}" || wtf "rename prepare -> ports failed"
-[ -z "${ports_exists}" ] || zfs inherit mountpoint "${ports}-bak" || wtf "inherit failed"
-zfs set mountpoint="${ports_fs}" "${ports}" || wtf "mountpoint failed"
-[ -z "${ports_exists}" ] || zfs destroy "${ports}-bak" || wtf "destroy failed"
-
-# Remount null-mounts of this filesystem
-[ "${remount_cmd}" ] && meh "Remounting filesystems"
-eval "${remount_cmd}"
-
-meh "All done"
-- 
2.42.0