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# Strict Qt6 Migration Prompt: CMake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies
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This prompt is binding task context. Keep changes minimal, scoped, and reproducible.
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## Required base prompt
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Before making changes, read and apply:
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- ./prompts/combined-migration-subfolder-rti-compact.prompt.md
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If that prompt is stricter, follow it. This prompt overrides it only for build variants: use ON variants only. Do not pursue OFF variants.
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## Module in scope
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Migrate only:
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- cmake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies
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From:
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- ./qt-migration-legatus/qt5-before/qt5-legatus-legacy/Lts/Poxies
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To:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies
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Do not migrate sibling services or unrelated modules.
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## Mandatory build variants
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Only these variants are valid:
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- BUILD_RTI=ON
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- BUILD_GRANTLEE=ON
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Forbidden:
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- BUILD_RTI=OFF
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- BUILD_GRANTLEE=OFF
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Rules:
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- Do not implement, fix, preserve, test, or validate OFF variants.
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- Do not add CMake logic, tests, stubs, or fallbacks for OFF variants.
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- Do not report OFF variants as supported or partially supported.
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- Validation must use BUILD_RTI=ON and BUILD_GRANTLEE=ON.
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## Branches and trees
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Qt6 target branch:
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- features/migrate-modules-in-lts-proxies
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Qt5 legacy branch, if comparison is needed:
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- story/qt6-migration
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Legacy source tree:
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- ./qt-migration-legatus/qt5-before/qt5-legatus-legacy
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Qt6 target tree:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus
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Work in the Qt6 target tree only. Do not modify the Qt5 legacy tree.
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## Scope rules
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Touch files outside the two target service directories only when directly required to configure, generate, build, link, test, or validate these services.
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Allowed outside-scope changes:
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- parent CMakeLists.txt entries for these services
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- central CMake helper fixes required by these services
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- shared include path fixes required by these services
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- RTI, codegen, ndsgen, KTextTemplate, or Grantlee integration fixes required by these services
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- test infrastructure needed by tests for these services
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- new_docker_build.sh changes needed to run those tests
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- minimal Jenkins CI discovery or policy updates needed for those tests
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- relocation of required stubs or forward declarations to allowed directories
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Not allowed:
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- restoring removed modules
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- reintroducing stale dependencies on removed modules
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- removing or disabling active modules to hide failures
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- disabling targets instead of fixing root causes
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- broad refactoring, cleanup, renaming, or modernization
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- warning suppression instead of fixing causes
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- committing generated files
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- consuming generated outputs from the source tree
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- fake success, dummy files, handwritten generated replacements, mocks, placeholders, or generated-output stubs
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## CMake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies:
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- Discover real CMake targets defined under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies when folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies exists.
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- Add every required CMake target under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies to ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/new_docker_build.sh so the validation container builds or validates it.
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- Do not invent CMake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies.
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- Do not add targets that do not exist.
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- If folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies does not exist, has no CMake targets, or a target is intentionally out of scope, report that fact and the reason.
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- Do not weaken validation to make CMake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies pass.
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## Preservation rules
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Preserve module removals from commit:
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- 92ad7d468, "remove all unneeded module listed from Niklas"
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Do not restore removed modules, files, targets, directories, or dependencies.
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Preserve LogViewer reinsert from commit:
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- 1fa789767, "Added LogViewer again"
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Do not remove, disable, or break LogViewer integration.
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Preserve prior IDL warning fixes from commit:
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- be912de9d, "Removes .IDL warnings: multiple enum definitons and builtin-type collisions"
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Do not blindly replay that commit. Use it only as reference. Do not reintroduce removed modules.
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IDL regressions to avoid:
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- multiple enum definitions
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- duplicate enumerators
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- builtin type or keyword collisions
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Check first for duplicate inputs, stale paths, removed-module references, source-tree generated outputs, source/build-tree confusion, and repeated IDL definitions before treating an issue as semantic IDL conflict.
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## Stubs and forward declarations
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Any required existing stub, compatibility declaration, or forward declaration must live only under:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/forward-declarations/
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/.forward-declarations/include/
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Rules:
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- Do not leave such files in service directories unless they are real service source files.
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- Do not create or keep stubs for forbidden OFF variants.
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- Do not use stubs or forward declarations as replacements for real RTI, ndsgen, KTextTemplate, or Grantlee outputs in ON builds.
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- Report every moved, removed, or newly referenced stub/forward declaration.
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## Migration checks
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For each cmake target, inspect and migrate only as needed:
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- source and header files
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- CMakeLists.txt and parent CMake registration
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- ui, qrc, resource, plugin, and service metadata
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- RTI IDL, ndsgen, KTextTemplate, and Grantlee inputs/templates
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- tests directly tied to these services
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Fix only real Qt6/C++17 build issues, such as:
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- Qt module imports and target links
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- moc, uic, and rcc handling
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- QRegExp to QRegularExpression when required
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- QTextCodec replacement when required
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- QDesktopWidget or QApplication::desktop() replacement when required
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- QString, QVariant, QMetaType, QDateTime, QAction, QMenu, signal/slot, enum, plugin, or metadata compatibility issues when required
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No opportunistic refactoring or style cleanup.
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## Qt link rules
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No active target in the Qt6 tree may link Qt5 imported targets.
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Search for and fix active uses of:
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- Qt5::
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- find_package(Qt5
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- QT5_
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- Qt5Core
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- Qt5Widgets
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- Qt5Network
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Use Qt6 equivalents. Prefer central CMake helper fixes when the issue is central.
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## Code generation rules
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If generated files are required:
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- reconstruct the real legacy generation flow
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- generate into the build tree
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- consume from the build tree
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- list complete OUTPUT and BYPRODUCTS
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- set correct DEPENDS and MAIN_DEPENDENCY where useful
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- use deterministic WORKING_DIRECTORY
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- use VERBATIM
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- wire generated sources with target_sources
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- wire generated include dirs with target_include_directories
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- ensure compilation depends on generation
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- ensure incremental rebuilds trigger on input/template changes
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Never commit generated .idl, .h, .hpp, or .cpp outputs. Never consume generated outputs from the source tree. Never fabricate generated outputs.
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## Tests
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For every C++ code change, add three meaningful CTest tests where feasible.
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Rules:
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- tests must validate changed behavior, not only compilation
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- tests must be registered with CTest
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- tests must run with BUILD_RTI=ON and BUILD_GRANTLEE=ON
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- do not add OFF-variant tests
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- use deterministic tests without host-local paths
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- if three meaningful tests are impossible, add the maximum meaningful set and explain why
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/new_docker_build.sh changes needed to run those tests
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/new_docker_build.sh changes needed to build or validate required CMake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies
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Preferred location:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/tests
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Use policy-compatible names, for example:
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- test_<name>.cpp
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- <name>_test.cpp
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- <name>test.cpp
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- <name>gtest.cpp
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## Docker and CI
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Authoritative migration Dockerfile:
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- ./app/Dockerfile
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Authoritative validation script:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/new_docker_build.sh
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Do not use other Dockerfiles as task authority.
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Validation container expectations:
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- repository root at /repo, or the script's documented mount path
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- external dependencies under /repo/external, or the script's documented equivalent
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- RTI 7.7 at /repo/external/rti_connext_dds-7.7.0, or documented equivalent
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- ./rti_license.dat mounted read-only if RTI requires it
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- no developer-local paths
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Jenkins CI must be able to discover and run the new tests, or verify that new_docker_build.sh runs them. Inspect and minimally update only if needed:
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- ./qt-migration-legatus/ci/Dockerfile.*
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- ./qt-migration-legatus/ci/check_pr_policies.py
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## Required procedure
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1. Inspect repository state, branch, working tree, submodules, required prompts, service paths, and forward-declaration directories.
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2. Compare Qt5 source services with Qt6 targets. Classify files as already migrated, missing, stale, generated, intentionally removed, build-only, or needing Qt6 adaptation.
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3. Identify dependencies, generated inputs, Qt modules, parent CMake entries, removed-module references, LogViewer interactions, and required stub/forward-declaration relocations.
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4. Apply the smallest valid migration changes.
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5. Add required CTest tests for C++ changes.
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6. Review RTI, ndsgen, KTextTemplate, and Grantlee generation paths.
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7. Check regressions: Qt5 links, removed modules, LogViewer, IDL warnings, source-tree generated consumption, stale artifacts, and misplaced stubs.
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8. Validate in Docker with BUILD_RTI=ON and BUILD_GRANTLEE=ON.
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9. Run CTest in the validated build directory.
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10. Check Jenkins/policy compatibility.
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11. Report factual status.
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Do not overwrite uncommitted user changes. If they block safe work, report the blocker.
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## Required validation
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From:
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- ./qt-migration-legatus/qt6-after/qt6-migrated-legatus
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Run:
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```bash
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BUILD_RTI=ON BUILD_GRANTLEE=ON ./new_docker_build.sh
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```
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CTest must run as part of validation. If a direct clean build is useful, use:
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```bash
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cmake -S /repo/qt-migration-legatus/qt6-after/qt6-migrated-legatus -B /repo/build-rti-on-grantlee-on -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBUILD_RTI=ON -DBUILD_GRANTLEE=ON
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cmake --build /repo/build-rti-on-grantlee-on --parallel
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ctest --test-dir /repo/build-rti-on-grantlee-on --output-on-failure
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```
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Also check whether this file exists and run it only if present:
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```bash
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./new_docker-build.h
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```
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If it is absent or a typo, report that. Do not invent a replacement.
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Do not run or validate OFF variants.
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## Success criteria
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Success requires:
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- cmake targets migrated or confirmed already correct
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- cmake targets included in the Qt6 build
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- configure, build, and CTest pass with BUILD_RTI=ON and BUILD_GRANTLEE=ON
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- new_docker_build.sh runs the relevant tests and fails on test failure
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- Jenkins/policy discovery accepts the new tests and validation changes
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- no active Qt5 imported target links remain for these services
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- generated outputs are build-tree only and freshly produced when required
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- no generated outputs are committed or consumed from the source tree
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- no fake generated files, dummy files, mocks, placeholders, or stubbed generated outputs exist
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- required stubs/forward declarations are only in allowed directories
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- removed modules remain removed
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- LogViewer remains preserved
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- RoutingServiceNG prompt rules are followed
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- RTI/codegen and Grantlee/KTextTemplate success is real, not stale or faked
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## If blocked
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Do not fake success. Report:
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- failing command
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- key error output
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- affected service
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- category: project, path, merge, CMake, Qt API, codegen, Docker, RTI/license, Grantlee/KTextTemplate, test, CTest, Jenkins CI, stub relocation, or environment
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- what was fixed safely
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- what remains blocked
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- whether stale artifacts were ruled out
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- whether generated files were involved
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- exact missing files, targets, or generator step
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- whether tests and CTest integration succeeded
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- whether Docker validation and Jenkins discovery succeeded
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## Final report
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Keep it short. Include:
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- status: validated, partially validated, or blocked
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- cmake targets under folder ./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Proxies migrated or already correct
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- files changed
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- C++ files changed
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- tests added per C++ change
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- CTest registration changes
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- CMake and generator changes
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- stub/forward-declaration moves or removals
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- Docker and Jenkins CI changes
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- Qt5 references removed or remaining
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- confirmation that removed modules were not restored
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- confirmation that LogViewer was preserved
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- exact validation commands and results
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- result of new_docker-build.h if present
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- remaining blockers or risks
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Reference in new issue
Block a user