Add .dmd file support to todmp for selective module packaging (CMake only)

[Copilot]

The todmp tool now accepts .dmd (DMOD Dependencies) files to specify which modules to include in a DMP package, instead of packaging all modules in a directory.

Note: .dmd file support is only available when building with CMake. When building with Make, only directory-based packaging is supported.

Changes

Core functionality:

• Parse .dmd files using existing dmod_dependencies library
• Filter modules: copy only specified modules to temporary directory before packaging
• Auto-select first module in .dmd as main module (overridable via CLI parameter)
• Conditional compilation: .dmd support wrapped with #ifdef DMOD_ENABLE_DMD_SUPPORT

Build system:

• CMake build: Links dmod_dependencies library and defines DMOD_ENABLE_DMD_SUPPORT
• Make build: No additional dependencies, .dmd support disabled (directory-based packaging only)
• Created Makefile for dmod_dependencies library for future use

Implementation details:

• Use mkdtemp() for secure temp directory creation
• Buffered file copying (64KB chunks) for memory efficiency
• Proper cleanup on all error paths, skip . and .. entries

Documentation:

• Added .dmd usage examples and workflow integration
• Created integration tests covering parsing, filtering, and main module selection
• Documented CMake-only limitation for .dmd support

Usage

With CMake build (includes .dmd support):

# deps.dmd
core_module
network_stack
filesystem

# Creates package with only these 3 modules, core_module as main
todmp myapp deps.dmd ./modules ./myapp.dmp

# Override main module
todmp myapp deps.dmd ./modules ./myapp.dmp network_stack

With Make build (directory-based only):

# Packages all modules in directory
todmp myapp ./modules ./myapp.dmp

Modules must already be downloaded in the input directory - version specifiers in .dmd are ignored during packaging.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Dodać wsparcie dla dmd w todmp</issue_title>
<issue_description>Powinna być możliwość tworzenia paczki na podstawie pliku *.dmd. Z założenia moduły już mają być oczywiście pobrane wcześniej, chodzi tylko o to, żeby wiedzieć które moduły mają być umieszczone w paczce. No i też o to, żeby główny moduł (jeśli nie jest podany w parametrach) to był ten, który jest pierwszy w pliku dmd</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Dodać wsparcie dla dmd w todmp #178

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[JohnAmadis]

@copilot dla make sie nie buduje

[Copilot]

@copilot dla make sie nie buduje

Fixed in commit 7337da4. The .dmd file support is now conditional - it's only available when building with CMake. The Make build works as before without .dmd support.

When building with Make, todmp will only support directory-based packaging (existing functionality). The .dmd file features are available when building with CMake, which properly links the required dmod_dependencies library.