Add foundation for cross-platform hot-reload system by isolating
loaded modules from source files using a temporary directory.
Changes:
- Add configurable tmp directory parameter to stk_init()
(defaults to mods/.tmp/ if not specified)
- Copy all modules from mods/ to .tmp/ on initialization
- Load modules exclusively from .tmp/ directory
- Clean up .tmp/ directory on shutdown
- Add cross-platform file operations:
* platform_mkdir() - create directories
* platform_copy_file() - copy files
* platform_remove_file() - delete files
* platform_remove_dir() - delete directory and contents
- Improve BSD kqueue implementation to detect file overwrites
(adds individual file watches with NOTE_WRITE)
This isolates the loaded shared libraries from source files,
preventing segfaults when users overwrite mods using cp/copy
operations. The actual reload logic remains unimplemented
(marked as TODO in stk_poll switch cases).
- Use fixed STK_PATH_MAX and STK_MOD_ID_BUFFER throughout for predictable memory
- Filter by platform-specific extensions (.so/.dll/.dylib) with compile-time length
- Add RELOAD event detection and is_module_loaded() helper
- Maintain feature parity across all platforms
- Split Makefile into gmake.mk (Linux/Windows) and bmake.mk (BSD/macOS)
- Added config.mk for shared variables.
- Added build.sh and build.bat dispatchers.
- Retains old build behavior with dependency tracking.
- Added kqueue directory watching code for other unix like OSes
(FreeBSD, OpenBSD, MacOS, etc)
- Since much of the code for Linux and other *nix OSes was the same,
some refactoring was done to not have duplicate code.
- Use STK_MOD_LOAD/STK_MOD_UNLOAD for Windows events
- Map FILE_ACTION_ADDED/MODIFIED/RENAMED_NEW_NAME to load
- Map FILE_ACTION_REMOVED/RENAMED_OLD_NAME to unload
- Add stk_module_ids array to track module IDs by filename.
- extract_module_id() extracts module ID from it's filename.
- Enables tracking of file changes of already loaded modules.