From 9a7042d2de2260ca3026ce5d608637607d7040b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?K=C3=B3nya=20M=C3=A1rton?= <konyamarci52@protonmail.com>
Date: Mon, 1 Mar 2021 23:07:05 +0100
Subject: [PATCH] added script

---
 calibre-remote.desktop |  10 ++++
 calibre-remote.sh      | 113 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 123 insertions(+)
 create mode 100644 calibre-remote.desktop
 create mode 100755 calibre-remote.sh

diff --git a/calibre-remote.desktop b/calibre-remote.desktop
new file mode 100644
index 0000000..36a1ead
--- /dev/null
+++ b/calibre-remote.desktop
@@ -0,0 +1,10 @@
+[Desktop Entry]
+Name=Calibre Remote
+GenericName=Remote e-book library management
+Comment=It's Calibre, but configured to work with a remote Calibre library
+Exec=calibre-remote
+Terminal=true
+Icon=calibre-gui
+Type=Application
+Categories=Office;
+StartupNotify=false
diff --git a/calibre-remote.sh b/calibre-remote.sh
new file mode 100755
index 0000000..9eb0e1c
--- /dev/null
+++ b/calibre-remote.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+
+# Declaring the folder and database paths
+LOCAL_CALIBRE_DB="<path to the locally stored metadata.db>"
+REMOTE_CALIBRE_DB="<path to the remotely stored metadata.db>"
+REMOTE_CALIBRE_LIBRARY="<path to the remote library root folder>"
+
+# Declaring Calibre-Web db reconnect URL (leave it to "NaN" if not used)
+CALIBRE_WEB_URL="NaN"
+
+# The function that will handle starting Calibre and copying the metadata.db after Calibre exits
+start_calibre() {
+    echo "Starting up Calibre..."
+    
+    # Calling Calibre with the set remote library
+    calibre --with-library $CALIBRE_LIBRARY_DIRECTORY
+    
+    echo "Calibre exited!"
+    
+    # Checking if the user edited anything
+    if ! cmp $LOCAL_CALIBRE_DB $REMOTE_CALIBRE_DB >/dev/null 2>&1; then
+        # If the user edited anything copying the new metadata.db to the server automatically
+        echo "Local database edited. Copying it to remote database..."
+        cp -f $LOCAL_CALIBRE_DB $REMOTE_CALIBRE_DB
+        echo "Copied!"
+        if [[ $CALIBRE_WEB_URL = "NaN" ]]; then
+            echo "Calibre-Web URL not defined. Proceeding without reconnecting Calibre-Web to database."
+        else
+            curl $CALIBRE_WEB_URL
+            echo "Calibre-Web reconnected to database."
+        fi
+        read -n 1 -s -r -p "Press any key to exit..."
+        exit
+    else
+        # If nothing was edited prompt the user if they want to copy metadata.db or not
+        echo "You did not edit the the database, so it is not necessarry to overwrite remote db. Do you want to? (y/n)"
+        read ANSWER
+        if [[ $ANSWER = "y" ]]; then
+            cp -f $LOCAL_CALIBRE_DB $REMOTE_CALIBRE_DB
+            echo "Copied!"
+            if [[ $CALIBRE_WEB_URL = "NaN" ]]; then
+                echo "Calibre-Web URL not defined. Proceeding without reconnecting Calibre-Web to database."
+            else
+                curl $CALIBRE_WEB_URL
+                echo "Calibre-Web reconnected to database."
+            fi
+            read -n 1 -s -r -p "Press any key to exit..."
+            exit
+            
+        else
+            echo "Database won't be copied!"
+            read -n 1 -s -r -p "Press any key to exit..."
+            exit
+        fi
+    fi
+}
+
+# Checking if the remote library is mounted
+if [ -d $REMOTE_CALIBRE_LIBRARY ]; then
+    CALIBRE_LIBRARY_DIRECTORY=$REMOTE_CALIBRE_LIBRARY
+    echo "Remote library found: $CALIBRE_LIBRARY_DIRECTORY"
+    
+    # Checking if metadata.db is present on the local storage
+    if [ -f $LOCAL_CALIBRE_DB ]; then
+        
+        # If local metadata.db exists check if the remote metadata.db was edited on the server
+        if ! cmp $LOCAL_CALIBRE_DB $REMOTE_CALIBRE_DB >/dev/null 2>&1; then
+            # If it was edited, prompting the user if they want to copy the remote one to the local storage
+            echo "Remote and local databases are different. Do you want to overwrite local db? (y/n): "
+            read ANSWER
+            if [[ $ANSWER = "y" ]]; then
+                cp -f $REMOTE_CALIBRE_DB $LOCAL_CALIBRE_DB
+            else
+                echo "Cannot start Calibre without an up-to-date database!"
+                read -n 1 -s -r -p "Press any key to exit..."
+                exit 1
+            fi
+        fi
+        
+        # Setting up the env variable for Calibre
+        export CALIBRE_OVERRIDE_DATABASE_PATH=$LOCAL_CALIBRE_DB
+        echo "Metadata db found: $CALIBRE_OVERRIDE_DATABASE_PATH"
+        
+        # Start Calibre with the correct remote Library path and local metadata.db path
+        start_calibre
+        
+    else
+        # If local metadata.db doesn't exists copy it from the server
+        echo "Metadata db not found, trying to copy it from remote server..."
+        if [ -f $REMOTE_CALIBRE_DB ]; then
+            cp $REMOTE_CALIBRE_DB $LOCAL_CALIBRE_DB
+            echo "Database copied succesfully\!"
+            export CALIBRE_OVERRIDE_DATABASE_PATH=$LOCAL_CALIBRE_DB
+            echo "Metadata db now exists: $CALIBRE_OVERRIDE_DATABASE_PATH"
+            
+            # Start Calibre with the correct remote Library path and local metadata.db path
+            start_calibre
+            
+        else
+            # If the remote metadata.db cannot be found exit the program
+            echo "Cannot find database on remote server!"
+            read -n 1 -s -r -p "Press any key to exit..."
+            exit 1
+        fi
+    fi
+    
+else
+    # If the remote library cannot be found exit the program
+    echo "Remote library not found!"
+    read -n 1 -s -r -p "Press any key to exit..."
+    echo "Exiting..."
+    exit 1
+fi