How to enable "Revert Local Changes" to run automatically

[raf77raf]

I have a scenario with 3 servers, where servers A and B are configured as “Send & Receive” for the /homefiles folder, and on server C the /homefiles folder is set as “Receive Only.”

Suppose a person or an application modifies, deletes, or adds a folder or file in the /homefiles folder on server C. I would like this action to be reverted immediately, without needing to open the Syncthing GUI and click the “Revert Local Changes” button — essentially, an automatic “Revert Local Changes” action.

Is it possible to configure it this way?

[tomasz86 (Tomasz Wilczyński)]

This isn’t possible within Syncthing itself. You would to trigger the API to have this done somewhat automatically (see https://docs.syncthing.net/dev/rest).

[chaos]

And you can script this to run at intervals.

[raf77raf]

Using the APIs:

curl -k -X POST -H “X-API-Key: ${API_KEY}” “https://127.0.0.1:8384/rest/db/scan?folder=${FOLDER_ID}”

curl -k -X POST -H “X-API-Key: ${API_KEY}” “https://127.0.0.1:8384/rest/db/revert?folder=${FOLDER_ID}”

I was successful in reverting changes, deletions, or creations in the ROOT folder (/var/www/html), but if the change is made in subfolders within the root folder (/var/www/html/teste/testefolder), even forcing a scan does not revert the changes.

Even when running it through the GUI, it’s not reverting.

Here’s a suggestion: We use SyncThing to synchronize folders and files of front-end web applications on clustered servers, as well as back-end servers. We have difficulties reverting changes.

• Segue um script:

vi /usr/local/bin/syncthing-SPA-teste-autorevert.sh

#!/bin/bash

WATCHDIR="/var/www/html"
API_KEY="JrF2UmGYeDA34rspAwcDHM2vvTPnNnbE"
FOLDER_ID="SPA-teste"

inotifywait -m -r -e create -e delete -e modify --format '%w%f %e' "$WATCHDIR" |
while read FILE EVENT; do
  sleep 5
  curl -k -X POST -H "X-API-Key: ${API_KEY}" \
    "https://127.0.0.1:8384/rest/db/scan?folder=${FOLDER_ID}" >/dev/null 2>&1
  curl -k -X POST -H "X-API-Key: ${API_KEY}" \
    "https://127.0.0.1:8384/rest/db/revert?folder=${FOLDER_ID}" >/dev/null 2>&1
  echo "$(date ‘+%F %T’) Detectado: $EVENT em $FILE"
done

• Service for automated execution:

vi /etc/systemd/system/syncthing-SPA-teste-autorevert.service

[Unit]
Description=Syncthing Auto Revert for Receive-Only Folder
After=network.target syncthing.service
Wants=syncthing.service

[Service]
Type=simple
ExecStart=/usr/local/bin/syncthing-SPA-teste-autorevert.sh
Restart=always
RestartSec=3
User=root

[Install]
WantedBy=multi-user.target

• To activate and run the service:

systemctl daemon-reload
systemctl enable syncthing-SPA-teste-autorevert.service
systemctl restart syncthing-SPA-teste-autorevert.service
watch systemctl status syncthing-SPA-teste-autorevert.service