YunoHost-Apps/mattermost_ynh
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Merge pull request #92 from YunoHost-Apps/fix-upgrade-failure

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upgrade: attempt to restore backup only if it was correctly saved
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Pierre de La Morinerie 2018-02-05 10:49:12 +05:30 committed by GitHub
commit 652c3a8251
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1 changed files with 22 additions and 6 deletions
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18
scripts/upgrade
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@ -36,16 +36,32 @@ logs_path="/var/log/$app"
#================================================= #=================================================
# Backup the current version of the app # Backup the current version of the app
ynh_backup_before_upgrade # (NB: `tee` uses process substitution rather than a pipe,
# to avoid spawning a subshell that would not save global
# variables defined by `ynh_backup_before_upgrade`.)
ynh_backup_before_upgrade > >(tee "upgrade.log")
# Ensure the backup can be restored
if grep -q "mattermost: Warning$" "upgrade.log"; then
can_restore_backup=false
else
can_restore_backup=true
fi
# If the upgrade fails… # If the upgrade fails…
ynh_clean_setup () { ynh_clean_setup () {
if [ "$can_restore_backup" = true ]; then
# Stop attempting to restart the app # Stop attempting to restart the app
if $(sudo systemctl -q is-active "$app"); then if $(sudo systemctl -q is-active "$app"); then
sudo systemctl stop "$app" sudo systemctl stop "$app"
fi fi
# Restore the backup # Restore the backup
ynh_restore_upgradebackup ynh_restore_upgradebackup
else
# Backup restoration is not available:
# let's try at least to restart the server.
sudo systemctl start "$app"
fi
} }
# Exit if an error occurs during the execution of the script # Exit if an error occurs during the execution of the script