Comprehensive application overhaul: Refactor architecture and add configurability (v0.4.0)

.github/workflows/appimage.yml

@@ -21,6 +21,7 @@ jobs:
 
     - name: Build the Go application
       run: |
+        go mod download
         GOOS=linux go build -o cycles
 
     - name: Prepare AppDir
@@ -42,10 +43,10 @@ jobs:
 
     - name: Build AppImage
       run: |
-        ./appimagetool-x86_64.AppImage --appimage-extract-and-run AppDir/ cycles-0.3.4-x86_64.AppImage
+        ./appimagetool-x86_64.AppImage --appimage-extract-and-run AppDir/ cycles-0.4.0-x86_64.AppImage
 
     - name: Upload AppImage
       uses: actions/upload-artifact@v2
       with:
         name: Cycles-AppImage
-        path: cycles-0.3.4-x86_64.AppImage
+        path: cycles-0.4.0-x86_64.AppImage

CHANGELOG.md

@@ -0,0 +1,51 @@
+# Changelog
+
+All notable changes to the Cycles project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.4.0] - 2025-10-14
+
+### Added
+- Command-line flags for customization:
+  - `--columns`: Configure number of columns in grid layout (default: 4)
+  - `--interval`: Set update interval (default: 2s)
+  - `--history`: Configure number of historical data points (default: 30)
+  - `--logical`: Toggle between logical and physical cores (default: true)
+- Unit tests for core functionality
+- Proper error handling and logging throughout the application
+- Configuration system for managing application settings
+
+### Changed
+- Refactored codebase into multiple files for better organization:
+  - `config.go`: Configuration management
+  - `theme.go`: Theme and color management
+  - `tile.go`: CoreTile structure and methods
+  - `sysinfo.go`: System information retrieval
+  - `graphics.go`: Graph rendering utilities
+  - `main.go`: Application orchestration
+- Improved error messages with proper logging
+- Updated version number from 0.3.4 to 0.4.0
+- Enhanced code documentation and comments
+- Updated README with comprehensive setup instructions
+
+### Fixed
+- Improved theme detection logic for graph colors
+- Better error handling for icon loading
+- More robust CPU frequency reading
+
+### Technical Improvements
+- Separated concerns for better code maintainability
+- Added test coverage for formatting functions and utilities
+- Cleaner main function with configuration-driven behavior
+- Removed unused code and comments
+
+## [0.3.4] - Previous Version
+
+### Features
+- Basic CPU monitoring for each core
+- Real-time utilization graphs
+- Frequency display for each core
+- Fixed 4-column grid layout
+- 2-second update interval