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* feat: Implement comprehensive Ubuntu/Debian server update script This commit introduces a major overhaul of the server update script, adding a wide range of new features and improvements: - Adds support for configuration file to customize script behavior - Implements detailed logging to both log file and JSON format - Adds color and Unicode symbols for better visual appeal - Tracks performance metrics and statistics during the update process - Includes default configuration with various options to enable/disable features - Adds helper functions for formatting and displaying content - Checks for and installs missing dependencies (e.g., `bc` for calculations) - Provides a decorative header with version information and branding - Improves overall code structure and readability These changes aim to make the script more user-friendly, configurable, and robust, providing a comprehensive solution for keeping Ubuntu and Debian servers up-to-date. * feat(update-ubuntu-or-debian-server): Enhance README with new features and details This commit significantly enhances the README file for the "update-ubuntu-or-debian-server" script. The key changes include: - Added badges for license and last commit - Expanded the table of contents with more detailed sections - Provided a comprehensive overview of the script's features, including core functionality, safety and security, monitoring and reporting, and configuration management - Detailed the prerequisites and automatic dependency installation - Included quick start instructions for both basic usage and manual installation - Documented the available command-line options - Provided information about the configuration, system health checks, security features, performance monitoring, email notifications, automation and scheduling, file locations, advanced usage, troubleshooting, contributing, license, support, and version history These changes aim to make the README more informative, user-friendly, and comprehensive, helping users better understand the capabilities and usage of the script. * feat: Improve backup script and table of contents formatting This commit includes the following changes: 1. Update the table of contents in the README.md file to remove the emoji prefixes and improve the formatting. 2. Modify the backup script (run.sh) to use a more robust method for capturing the package selections. Instead of using `dpkg --get-selections >`, the script now uses `sudo sh -c "dpkg --get-selections > ..."` to ensure proper file redirection. 3. Enhance the progress bar implementation in the backup script to use floating-point precision for the sleep interval, with a minimum value of 0.05 seconds. This ensures a smoother progress display, even for short backup durations. * feat(maintenance-window): Improve maintenance window handling The changes in this commit improve the handling of the maintenance window in the script. The previous implementation had issues with maintenance windows that crossed midnight. The new implementation converts the times to minutes since midnight and handles both the normal case (start <= end) and the wrap-around case (start > end) correctly. Additionally, the commit moves the "check_problematic_packages" function call to before the package updates, ensuring that any problematic packages are identified and excluded before the system is updated. * feat(config): Safely parse configuration file Implement a more secure way to load the configuration file by parsing it line by line and only allowing known configuration variables to be set. This prevents the execution of arbitrary commands that could be present in the configuration file. * feat(server-config): Update configuration variable handling Modify the script to use `printf -v` to safely set configuration variables and export them. This ensures that variables are properly initialized and available for use throughout the script. * feat(update-ubuntu-or-debian-server): Improve retry logic and progress reporting The changes in this commit improve the retry logic and progress reporting in the `update-ubuntu-or-debian-server/run.sh` script. The key changes are: - Refactor the `retry_operation` function to accept the command as an array, making it more flexible and easier to use. - Update the `retry_operation` function to store the failed commands in the `FAILED_OPERATIONS` array. - Improve the progress reporting by using the `show_progress_bar` function instead of `show_progress` for the package list update. - Update the package upgrade and full upgrade steps to use the improved `retry_operation` function. - Update the package autoremoval and cache cleanup steps to use the improved `retry_operation` function. These changes aim to make the script more robust and provide better feedback to the user during the update process. * feat(logging): Improve JSON logging with jq or manual escaping The changes in this commit improve the JSON logging functionality in the script. If the `jq` command is available, it is used to generate the JSON log entries. If `jq` is not available, the script falls back to manual escaping of the log message to ensure proper JSON formatting. * feat: Use indirect variable expansion for config value The changes update the way the script retrieves the configuration value for auto-proceeding. Instead of using `eval echo`, it now uses indirect variable expansion to directly access the value of the configuration variable.
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