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use flock automatic lock for upgrade

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fix #1756

Signed-off-by: Adam Monsen <haircut@gmail.com>
This commit is contained in:
Adam Monsen 2022-05-21 13:33:52 -07:00
parent d11d42bb20
commit f77b628c2d
1 changed files with 5 additions and 7 deletions
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12
docker-entrypoint.sh
View file

@ -102,14 +102,15 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
rsync_options="-rlD"
fi
# Prevent multiple images syncing simultaneously:
# If another process is syncing the html folder, wait for
# it to be done, then escape initalization
lock=/var/www/html/nextcloud-init-sync.lock
count=0
limit=10
if [ -f "$lock" ]; then
until [ ! -f "$lock" ] || [ "$count" -gt "$limit" ]
(
if ! flock -n 9; then
until flock -n 9 || [ "$count" -gt "$limit" ]
do
count=$((count+1))
wait=$((count*10))
@ -122,8 +123,6 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
fi
echo "The other process is done, assuming complete initialization"
else
# Prevent multiple images syncing simultaneously
touch $lock
rsync $rsync_options --delete --exclude-from=/upgrade.exclude /usr/src/nextcloud/ /var/www/html/
for dir in config data custom_apps themes; do
@ -211,10 +210,9 @@ if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ] || [ "${NEXTCLOUD_UP
fi
# Initialization done, reset lock
rm $lock
echo "Initializing finished"
fi
) 9> /var/lock/nextcloud-init-sync.lock
fi
fi