backupserver.sh

backupserver.sh

#!/bin/bash

# Function to prompt for input with auto-completion
prompt_for_paths() {
    local prompt_message="$1"
    local result_var="$2"
    local input
    # Enable readline's file name completion
    read -e -a input -p "$prompt_message: "
    # Join array into space-separated string
    local joined_input="${input[@]}"
    # Set the result variable using indirect reference
    eval "$result_var=\"\$joined_input\""
}

# Prompt for backup directory (with completion)
read -e -p "Enter the backup directory: " BACKUP_DIR

# Prompt for source directories (with completion, multiple supported)
prompt_for_paths "Enter the source directories (space-separated, use TAB to complete)" SOURCE_DIRS

# Prompt for files to exclude (with completion, multiple supported)
prompt_for_paths "Enter files to exclude (space-separated, use TAB to complete)" EXCLUDE_FILES

# Prompt for archive name (no completion needed)
read -e -p "Enter the archive name [var_backup]: " ARCHIVE_NAME
ARCHIVE_NAME=${ARCHIVE_NAME:-var_backup}

# Prompt for maximum size of each archive part (no completion needed)
read -e -p "Enter maximum size of each archive part [3G]: " MAX_SIZE
MAX_SIZE=${MAX_SIZE:-3G}

mkdir -p "$BACKUP_DIR"

# Build tar exclude options
EXCLUDE_ARGS=()
for file in $EXCLUDE_FILES; do
    EXCLUDE_ARGS+=(--exclude="$file")
done

# Tar up the source directories
tar czf - "${EXCLUDE_ARGS[@]}" $SOURCE_DIRS | \
    7z a -v"$MAX_SIZE" -mx=9 -si "$BACKUP_DIR/$ARCHIVE_NAME.tar.7z"

if [ $? -eq 0 ]; then
    echo "Backup completed successfully."
else
    echo "Backup failed."
fi