From 8c0235ebf2ea51f95a23ce544ca45e83e93e2646 Mon Sep 17 00:00:00 2001
From: Jose Henrique <jose.henrique.ivan@gmail.com>
Date: Sat, 26 Jul 2025 21:55:47 -0300
Subject: [PATCH] updating script

---
 nas-gdrive-backup.sh | 131 +++++++++++++++++++++++--------------------
 1 file changed, 71 insertions(+), 60 deletions(-)

diff --git a/nas-gdrive-backup.sh b/nas-gdrive-backup.sh
index 09433a6..d796fa1 100644
--- a/nas-gdrive-backup.sh
+++ b/nas-gdrive-backup.sh
@@ -33,27 +33,6 @@ clean_up() {
 
 trap clean_up EXIT
 
-# Check if 7z is installed
-if ! which 7z; then
-    log "ERROR: 7z is not installed"
-    exit 1
-fi
-
-# Check if rclone is installed
-if ! which rclone; then
-    log "ERROR: rclone is not installed"
-    exit 1
-fi
-
-# Create meta directory if it doesn't exist
-if [ ! -d "$META_DIR" ]; then
-    log "Creating meta directory: $META_DIR"
-    mkdir -p "$META_DIR"
-fi
-
-# Fix permissions for the meta directory (777 recursively)
-chmod -R 777 "$META_DIR"
-
 create_7z() {
     local folder="$1"
     local archive_name="$2"
@@ -81,57 +60,86 @@ upload_to_gdrive() {
     fi
 }
 
-# Loop through each folder in the backup source
-for folder in "$BACKUP_SOURCE"/*; do
-    if [ -d "$folder" ]; then
-        log "Processing folder: $folder"
-        # Get the sha256 checksum of the folder
-        CHECKSUM=$(find "$folder" -type f -exec sha256sum {} + | sha256sum | awk '{print $1}')
-        META_FILE="$META_DIR/$(basename "$folder").sha256"
-        # Check if the checksum file exists
-        if [ -f "$META_FILE" ]; then
-            # Read the previous checksum from the file
-            PREV_CHECKSUM=$(cat "$META_FILE")
-            # Compare the checksums
-            if [ "$CHECKSUM" != "$PREV_CHECKSUM" ]; then
-                log "Changes detected in $folder - creating new archive"
+main() {
+    # Check if 7z is installed
+    if ! which 7z > /dev/null; then
+        log "ERROR: 7z is not installed"
+        exit 1
+    fi
+
+    # Check if rclone is installed
+    if ! which rclone > /dev/null; then
+        log "ERROR: rclone is not installed"
+        exit 1
+    fi
+
+    # Create meta directory if it doesn't exist
+    if [ ! -d "$META_DIR" ]; then
+        log "Creating meta directory: $META_DIR"
+        mkdir -p "$META_DIR"
+    fi
+
+    # Fix permissions for the meta directory (777 recursively)
+    chmod -R 777 "$META_DIR"
+
+    # Loop through each folder in the backup source
+    for folder in "$BACKUP_SOURCE"/*; do
+        if [ -d "$folder" ]; then
+            log "Processing folder: $folder"
+            # Get the sha256 checksum of the folder
+            CHECKSUM=$(find "$folder" -type f -exec sha256sum {} + | sha256sum | awk '{print $1}')
+            META_FILE="$META_DIR/$(basename "$folder").sha256"
+            # Check if the checksum file exists
+            if [ -f "$META_FILE" ]; then
+                # Read the previous checksum from the file
+                PREV_CHECKSUM=$(cat "$META_FILE")
+                # Compare the checksums
+                if [ "$CHECKSUM" != "$PREV_CHECKSUM" ]; then
+                    log "Changes detected in $folder - creating new archive"
+
+                    create_7z "$folder" "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
+                    upload_to_gdrive "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
+
+                    # Update the checksum file
+                    echo "$CHECKSUM" > "$META_FILE"
+                    
+                    # Remove the temporary archive file
+                    log "Removing temporary archive file"
+                    rm "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
+                else
+                    log "No changes detected in $folder"
+                fi
+            else
+                log "No previous checksum found for $folder - creating new archive"
 
                 create_7z "$folder" "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
                 upload_to_gdrive "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
-
-                # Update the checksum file
-                echo "$CHECKSUM" > "$META_FILE"
                 
+                # Create a checksum file for the folder
+                echo "$CHECKSUM" > "$META_FILE"
+
                 # Remove the temporary archive file
                 log "Removing temporary archive file"
                 rm "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
-            else
-                log "No changes detected in $folder"
             fi
         else
-            log "No previous checksum found for $folder - creating new archive"
-
-            create_7z "$folder" "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
-            upload_to_gdrive "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
-            
-            # Create a checksum file for the folder
-            echo "$CHECKSUM" > "$META_FILE"
-
-            # Remove the temporary archive file
-            log "Removing temporary archive file"
-            rm "$TMP_DIR/$(basename "$folder")_$ARCHIVE_NAME"
+            log "Skipping $folder, not a directory"
         fi
-    else
-        log "Skipping $folder, not a directory"
-    fi
-    log ""
-done
+        log ""
+    done
 
-log "Backup process completed successfully"
+    # Fix permissions for the meta directory (777 recursively)
+    chmod -R 777 "$META_DIR"
 
-# Exit with success
-exit 0
+    log "Backup process completed successfully"
 
+    # Exit with success
+    exit 0
+}
+
+###########################
+### Installation script ###
+###########################
 # Function to install a dependency if not already installed
 install_dependency() {
     local package="$1"
@@ -255,4 +263,7 @@ install_script() {
 
     # Exit with success
     exit 0
-}
\ No newline at end of file
+}
+
+main "$@"
+exit 0
\ No newline at end of file