From 3904c764784c7a64c647f9545b7061febe53118c Mon Sep 17 00:00:00 2001
From: Awiteb <a@4rs.nl>
Date: Fri, 3 May 2024 13:22:42 +0300
Subject: [PATCH] Support database backup and restore

---
 Justfile | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/Justfile b/Justfile
index bbfd6d7..c35bdc7 100644
--- a/Justfile
+++ b/Justfile
@@ -7,19 +7,42 @@
 
 # Stop the instance [aliases: s]
 @stop:
-    sudo docker-compose rm -f -s
+    sudo docker-compose stop
 
 # Restart the instance
 @restart:
     sudo docker-compose restart
 
 # Create Backup file [aliases: b]
-@backup backup_name: stop && run
+@backup backup_name:
     #!/usr/bin/env bash
-    FILES="data postgresdata Justfile docker-compose.yml README.md"
+    DATABASE_BACKUP_FILE="synapse-postgres-backup-$(date +%d-%m-%Y"_"%H%M%S).sql.gz"
+    sudo docker-compose exec postgresql bash -c "export PGPASSWORD=somepassword && pg_dump -U synapse synapse" | \
+        gzip -9 > $DATABASE_BACKUP_FILE
+    FILES="data postgresdata Justfile docker-compose.yml README.md $DATABASE_BACKUP_FILE"
     7z a -t7z -m0=lzma2 -mx=9 -mfb=64 -md=32m -ms=on -mhe=on -p {{backup_name}}.7z $FILES
+    rm -fr $DATABASE_BACKUP_FILE
     echo "Backup done..."
 
+# Restore Backup file
+@restore backup_name: stop && run
+    #!/usr/bin/env bash
+    7z x {{backup_name}}.7z -aoa
+    DATABASE_BACKUP_FILE=$(ls synapse-postgres-backup-*.sql.gz)
+    DATABASE_FILE=$(echo $DATABASE_BACKUP_FILE | sed 's/.gz//')
+    # Run the database to write the sql file to the container
+    sudo docker-compose up -d postgresql
+
+    gunzip -k $DATABASE_BACKUP_FILE && \
+        sudo docker cp $DATABASE_FILE postgresql_synapse:/pg-backup.sql && \
+        sudo docker-compose exec postgresql bash -c "export PGPASSWORD=somepassword && dropdb -U synapse synapse --force && createdb -U synapse synapse && psql -U synapse synapse < pg-backup.sql"
+    rm -fr $DATABASE_FILE
+    rm -fr $DATABASE_BACKUP_FILE
+
+    # Stop the database container (it will be started by the run command)
+    sudo docker-compose stop postgresql
+    echo "Restore done..."
+
 
 [private]
 alias r := run
@@ -27,4 +50,5 @@ alias r := run
 alias s := stop
 [private]
 alias b := backup
-
+[private]
+alias re := restore
\ No newline at end of file