app-backup/btrbk: ewarn when upgrading to 0.27

Signed-off-by: Craig Andrews <candrews@gentoo.org>
Package-Manager: Portage-2.3.51, Repoman-2.3.11

diff --git a/app-backup/btrbk/btrbk-0.27.0.ebuild b/app-backup/btrbk/btrbk-0.27.0.ebuild
index 9be9d8c87f3e927cd0bfe09b9f4aca7583de0c8c..f364036c572c2406593d238d527582085a823dff 100644 (file)
--- a/app-backup/btrbk/btrbk-0.27.0.ebuild
+++ b/app-backup/btrbk/btrbk-0.27.0.ebuild
@@ -36,10 +36,33 @@ pkg_preinst() {
        if has_version "<${CATEGORY}/${PN}-0.26.0" ; then
                upgrade_0_26_0_warning="1"
        fi
+       if has_version "<${CATEGORY}/${PN}-0.27.0" ; then
+               upgrade_0_27_0_warning="1"
+       fi
 }
 pkg_postinst() {
        if [[ "${upgrade_0_26_0_warning}" == "1" ]]; then
                ewarn "If you are using raw targets, make sure to run the"
                ewarn "\"raw_suffix2sidecar\" utility in each target directory."
        fi
+       if [[ "${upgrade_0_27_0_warning}" == "1" ]]; then
+               ewarn 'Due to a bugfix in the scheduler [1] [2], previously preserved'
+               ewarn 'monthly/yearly backups could get deleted when upgrading to'
+               ewarn 'btrbk-0.27.0.'
+               ewarn ''
+               ewarn 'Before upgrading to btrbk-0.27.0, make sure to stop all cron jobs'
+               ewarn 'or systemd timers calling btrbk.'
+               ewarn ''
+               ewarn 'After upgrading, run "btrbk prune --dry-run --print-schedule" and'
+               ewarn 'check if any snapshots/backups would get deleted. If you want to'
+               ewarn 'forcibly preserve a snapshot/backup forever, rename it:'
+               ewarn ''
+               ewarn '    mv mysubvol.YYYYMMDD mysubvol.YYYYMMDD.keep_forever'
+               ewarn ''
+               ewarn 'Note that btrbk ignores subvolumes with unknown naming scheme, e.g.'
+               ewarn '(".keep_forever" suffix in the example above).'
+               ewarn ''
+               ewarn '  [1] https://github.com/digint/btrbk/issues/217'
+               ewarn '  [2] https://github.com/digint/btrbk/commit/719fb5f'
+       fi
 }