# Release Scope Analysis - Qt6 Migration First Release

## Date: 2026-10-07
## Branch: story/release-at-16-oct-2026

## Module Sets

### R (All Qt6-migrated modules)
Top-level modules in qt6-migrated-legatus:
- TetraIF
- Z
- Lts (with subdirectories: Common, DDS, Services, Proxies, Plugins, Viewer, Projects, Tools, Application)

### M (Modules to be released per prompt)
- TetraIF
- Z
- Lts/Common

### S (Minimal release set = M + dependencies)

**S = M** (no external dependencies required)

All dependencies of M modules are contained within M:

#### TetraIF dependencies:
- CoPrtCnv (internal to TetraIF directory)
- NGLLogger (Z/src) ✓ in M
- nglwidgets (Z/src) ✓ in M
- nglapplication (Z/src) ✓ in M
- ngltools (Z/src) ✓ in M
- Qt6::Core, Qt6::Gui, Qt6::Network (system Qt6)

#### Z/src dependencies:
- Qt6::Core, Qt6::Gui, Qt6::Network, Qt6::Widgets, Qt6::Sql (system Qt6)
- No inter-Z dependencies that would require additional modules

#### Lts/Common dependencies:
- NGLLogger (Z/src) ✓ in M
- ngltools (Z/src) ✓ in M
- nglsettings (Z/src) ✓ in M
- nglapplication (Z/src) ✓ in M
- nglcoreapplication (Z/src) ✓ in M
- PluginInterfaces (Lts/Common/internal) ✓ in M
- LtsWidgets (Lts/Common/internal) ✓ in M
- LtsCoordTrans (Lts/Common/internal) ✓ in M
- LtsUtilsCoreHeaderOnly (Lts/Common/internal) ✓ in M
- Qt6::Core (system Qt6)

#### Conditional dependencies:
- **ddscore** (Lts/Services/GROUP1): Only required when BUILD_RTI=ON
  - LtsCoordinate: uses `$<IF:$<TARGET_EXISTS:ddscore>,ddscore,>` (conditional)
  - LtsSession: uses `$<$<BOOL:${BUILD_RTI}>:ddscore>` (conditional)
  - LtsUtilsCore/LtsUtilsGuiDds: link to ddscore (conditional on BUILD_RTI)
  
  **Recommendation**: For first release, set BUILD_RTI=OFF to avoid requiring Lts/Services
  **Alternative**: Include GROUP1 (ddscore, svcCoreClient) in S if RTI support is required

#### Excluded dependencies (NOT in S):
- **Lts/Viewer/SituationMap**: Required by LtsElevation but LtsElevation is NOT in M
  - LtsElevation is one of 28 Lts/Common submodules
  - Since LtsElevation is not a required release module, its external dependencies are excluded
  - LtsElevation will be excluded from the release build

## Build Group Mapping

Current build groups in new_docker_build.sh:
```
GROUP1: Lts/Services (ddscore, svcCoreClient, etc.) - EXCLUDE (unless BUILD_RTI=ON)
GROUP2: Lts/Proxies - EXCLUDE
GROUP3: Z/src (all Z modules) - INCLUDE (part of M)
GROUP4: Lts/DDS - EXCLUDE
GROUP5: Lts/Common - INCLUDE (part of M)
GROUP6: Lts/Tools - EXCLUDE
GROUP7: Lts/Plugins - EXCLUDE
GROUP8: Lts/Viewer - EXCLUDE
GROUP9: Lts/Projects - EXCLUDE
GROUP10: Lts/Application - EXCLUDE
GROUP11: TetraIF - INCLUDE (part of M)
```

## Required Changes

### 1. new_docker_build.sh
- Set BUILD_GROUP3=ON (Z/src)
- Set BUILD_GROUP5=ON (Lts/Common)
- Set BUILD_GROUP11=ON (TetraIF)
- Set all other BUILD_GROUP*=OFF
- Set BUILD_RTI=OFF (to avoid ddscore dependency)
- Modify Lts/Common build to exclude LtsElevation (depends on Lts/Viewer)

### 2. rpmbuild/make_rpm_ubuntu26.py
- Update to only package S modules
- Exclude non-S module paths

### 3. jenkins-ci-rme/
- Update pipeline to only build/test S modules
- Update artifact paths

### 4. CMakeLists.txt (optional)
- May need to modify Lts/Common/CMakeLists.txt to conditionally exclude LtsElevation
- Or control via MIGRATE_MODULE variable

## Validation Plan

1. Build with modified new_docker_build.sh
2. Run CTest for S modules
3. Verify RPM packages only contain S modules
4. Verify Jenkins pipeline only builds S modules

## Files to Modify

1. `qt-migration-legatus/qt6-after/qt6-migrated-legatus/new_docker_build.sh`
2. `rpmbuild/make_rpm_ubuntu26.py`
3. `jenkins-ci-rme/` (specific files TBD)
4. Potentially `qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Common/CMakeLists.txt`

## Commit Strategy

Per commit-policy.prompt.md:
- Separate commits for each repository
- Signed commits required
- Repositories:
  - qt6-migration-pipeline (main)
  - qt-migration-legatus (submodule)
  - rpmbuild (submodule)
  - jenkins-ci-rme (submodule)