437 lines
28 KiB
Markdown
437 lines
28 KiB
Markdown
# Qt6 Migration Branches Summary Report
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## Executive Summary
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**Status:** ✅ **ALL MIGRATION BRANCHES INTEGRATED AND VALIDATED**
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**Target Branch:** `feature/qt6-migration-projects-app-tools-viewer-validation` (`593c221d2`)
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**Qt Version:** 6.10.2 (`/opt/Qt/6.10.2/gcc_64`)
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**Report Date:** 2026-09-28
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The Qt5 → Qt6 migration of the Legatus codebase was executed as a **branch pipeline**:
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~14 independent per-module/per-area migration branches (Phase 1) were developed in parallel
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by Torsten Wierschin / twi-devel and berrux_dev, and were then consolidated through a
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four-stage integration chain (Phase 2) into the final branch
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`feature/qt6-migration-projects-app-tools-viewer-validation` (`593c221d2`, 257 commits beyond `main`).
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All work was validated with **three full Docker build/test runs** (`new_docker_build.sh`,
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prebuilt image `legatus-qt6-prebuilt:latest`, cmake 4.2.3):
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| Run | Configuration | Build Result | ctest Result |
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|-----|---------------|--------------|--------------|
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| 1 | `BUILD_RTI=ON BUILD_GRANTLEE=ON`, Groups 1–3 | 100 % | 614 tests: 584 Passed / 30 Not Run / 0 Failed / 0 Timeout |
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| 2 | `+ BUILD_ARCGIS=ON BUILD_CODIFICATION=ON`, Groups 4–11 + codification, `BUILD_WLS=ON` | Groups 1–4 100 % green; Groups 5–11 built except documented base-state failures | 615 tests: 577 Passed / 34 Not Run / 2 Failed / 2 Timeout — **exactly the 4 documented base-state failures, no new regressions** |
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| 3 | `--build-viewer-only` | Viewer group 100 % (situationMapCommon, advancedSymbologyXML, LtsDataView, LtsDataViewTest, LtsReportDisplay) | 34 tests: **LtsDataViewTest PASSED (1.04 s)** / 33 Not Run / 0 Failed / 0 Timeout |
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**Bottom line:** The merge introduced **zero ctest regressions** and **zero new build
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failures** — every observed failure was proven pre-existing (base-state) via per-file
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git provenance checks. Remaining failures are classified base-state blockers
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(see [Remaining Work](#remaining-work)). All commits are GPG-signed (`git verify-commit` = Good).
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The result is **not pushed** (per task instruction).
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---
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## Migration Scope
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- **Source (read-only legacy tree):** `qt5-before/qt5-legatus-legacy`
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- **Target (migrated tree):** `qt6-after/qt6-migrated-legatus` (repo `qt-migration-legatus`, a git submodule of the pipeline repo)
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- **Toolchain:** Qt 6.10.2, rtiddsgen 7.7.0 (code generation for DDS/RTI types), cmake 4.2.3,
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KDReports-qt6 2.3.95, ArcGIS Maps SDK for Qt 300.0.0
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- **Migrated areas covered by the branch set:**
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- Core/Z module (NGL core libraries)
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- DDS core + generated DDS/RTI targets (rtiddsgen 7.7.0 code generation)
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- Lts/Proxies, Lts/Services (incl. residual sources ported to the generated API)
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- Lts/Viewer (SituationMap, Symbology, DataView, ReportDisplay) incl. ArcGIS-dependent targets
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- LTS Tools (Groups 6–9, incl. Group 9 R/S/T/V/W)
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- LTS Projects (GROUP10, 9 project plugins) and LTS Application (GROUP11)
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- Test infrastructure: per-service unit tests, integration tests, ctest integration
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- **Out of scope / blockers:** ArcGIS `TaskWatcher` API redesign (SDK 300 removed the class),
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`LtsSession` full implementation (currently an empty stub), base-state Qt6 API debt in a
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handful of tool sources, base-state `apps.json` IID checker failures.
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---
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## Branch Inventory
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Commit counts are `git rev-list --count main..head` with `main` = `99136e946` (2026-08-13, initial commit).
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### Phase 1 — Independent migration branches
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| Branch | Head | Date | Author | Scope | Commits | In final branch |
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|--------|------|------|--------|-------|---------|-----------------|
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| `origin/feature/migrate-module-z-only` | `882f783bc` | 2026-09-17 | Torsten Wierschin | Core/Z module (NGL core libs, Group 1) | 184 | ✅ ancestor |
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| `origin/showcase/unittest-and-validate-step-integration-in-lts-svc-s` | `82da99b41` | 2026-09-17 | Torsten Wierschin | Lts Svc (S) migration + unit-test step integration | 182 | ✅ ancestor |
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| `origin/features/migrate-modules-in-lts-proxies` | `a1914cb7d` | 2026-09-19 | Torsten Wierschin | Lts/Proxies migration + test suite | 186 | ✅ ancestor |
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| `origin/feature/migrate-and-test-DDS-targets` | `7cd3e4395` | 2026-09-21 | twi-devel | DDS targets migration + tests (merged at `ab29b7b2d`) | 186 | ✅ ancestor |
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| `origin/bugfix/dds-fix-pre-existing-errors` | `5501d1e50` | 2026-09-22 | Torsten Wierschin | Stub-header updates fixing pre-existing DDS errors | 193 | ⤵ **cherry-picked** as `b2e787a70` (patch-id-identical; `Co-authored-by: Copilot` line dropped) |
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| `origin/feature/migrate-lts-viewer.md` (= `origin/feature/qt6-migration-basis-modules`) | `ed9fc51e7` | 2026-09-23 | twi-devel | Lts/Viewer migrated to Qt6 | 194 | ✅ ancestor |
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| `origin/feature/migrate-lts-tools-d-and-l` | `2b8f3f02c` | 2026-09-24 | Torsten Wierschin | LTS Tools migration incl. Group 9 (R,S,T,V,W) | 199 | ✅ ancestor (contained in the projects branch — no separate merge needed) |
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| `origin/feature/lts-viewer-validation-testing-phase` | `c664611b8` | 2026-09-24 | twi-devel | Viewer validation/testing phase; PDM MOC exclusion, record_replay fixes | 197 | ✅ ancestor (merged at `9c1ac7cbe`) |
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| `origin/feature/migrate-lts-projects-and-application` | `b18844a20` | 2026-09-25 | Torsten Wierschin | LTS Projects (GROUP10) + LTS Application (GROUP11); GROUP10 validation documented | 203 | ✅ ancestor (**base side of the final merge**) |
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### Phase 2 — Integration / merge chain (berrux_dev)
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| Branch | Head | Date | Author | Role |
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|--------|------|------|--------|------|
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| `feature/qt6-migration-basis-modules-services` | `881d44f4d` | 2026-09-23 | berrux_dev | Residual Lts service sources migrated to generated rtiddsgen API |
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| `feature/qt6-migration-basis-modules-merge` | `36f077bce` | 2026-09-26 | berrux_dev | First integration: merged `migrate-and-test-DDS-targets` (`ab29b7b2d`) and `…-services` (`5381c65fe`); record_replay/fromQVariant + PPM MOC doc (`36f077bce`) |
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| `feature/qt6-migration-basis-modules-merge-viewer-validation` | `9c1ac7cbe` | 2026-09-27 | berrux_dev | Merged `lts-viewer-validation-testing-phase` into the integration branch (`9c1ac7cbe`) |
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| **`feature/qt6-migration-projects-app-tools-viewer-validation`** | **`593c221d2`** | **2026-09-28** | berrux_dev | **FINAL:** cherry-pick `5501d1e50` → `b2e787a70`; merged `…-viewer-validation` into `migrate-lts-projects-and-application` (`593c221d2`); resolves 1 content + 24 modify/delete conflicts; 257 commits beyond `main` |
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### Historical / parallel branches (heads **not** ancestors of the final branch)
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| Branch | Head | Date | Author | Notes |
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|--------|------|------|--------|-------|
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| `origin/feature/qt6-migration-signed` | `5da24495a` | 2026-08-21 | twi-devel | Early setup: added `qt5-legatus-legacy` submodule, signed-commit workflow |
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| `origin/feature/qt6-migration-2026-08-21` | `5ee324f9e` | 2026-08-22 | twi-devel | Initial migration kickoff (superseded by later branches) |
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| `origin/session-030-build-rti-schutz` | `d76c54614` | 2026-08-28 | twi-devel | SIGNAL/SLOT completion + QTextCodec removal (RTI build guard) |
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| `origin/entire/checkpoints/v1` | `2f591c850` | 2026-09-12 | berrux_dev | Entire-graph code-graph checkpoint (not migration content) |
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| `origin/feature/qt6-migration-basis-modules-berrux` | `ba212f9dc` | 2026-09-12 | berrux_dev | TetraIF migration + unit tests (parallel work line; superseded by the integration chain) |
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---
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## Merge Lineage
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```
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main (99136e946, 2026-08-13)
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│
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├─ Historical (Aug): qt6-migration-signed · qt6-migration-2026-08-21 · session-030-build-rti-schutz
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│ · entire/checkpoints/v1 · qt6-migration-basis-modules-berrux
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│
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├─ Phase 1 (independent module migrations, parallel)
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│ ├─ migrate-module-z-only (Z core)
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│ ├─ showcase/…-lts-svc-s (Svc S + unittest step)
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│ ├─ features/migrate-modules-in-lts-proxies
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│ ├─ migrate-and-test-DDS-targets ──────────────┐
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│ ├─ bugfix/dds-fix-pre-existing-errors ──(cherry-pick b2e787a70)──┐
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│ ├─ migrate-lts-viewer.md ≡ qt6-migration-basis-modules (Viewer) │
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│ ├─ migrate-lts-tools-d-and-l (Tools; contained in projects branch)│
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│ ├─ lts-viewer-validation-testing-phase ────────┐ │
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│ └─ migrate-lts-projects-and-application (Projects+App) ─────────┐│
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│ ││
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└─ Phase 2 (integration chain) ││
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qt6-migration-basis-modules-services ││
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└─> qt6-migration-basis-modules-merge ││
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[ab29b7b2d: +DDS-targets] [5381c65fe: +services] ││
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└─> qt6-migration-basis-modules-merge-viewer-validation ││
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[9c1ac7cbe: +lts-viewer-validation-testing-phase] ││
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└─> feature/qt6-migration-projects-app-tools-viewer-validation
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[593c221d2: merge into projects+app base; parents b2e787a70 + 9c1ac7cbe]
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★ FINAL RESULT BRANCH (257 commits beyond main)
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```
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Merge structure of the final branch (newest first):
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1. `593c221d2` — **Merge** `feature/qt6-migration-basis-modules-merge-viewer-validation` into
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`feature/migrate-lts-projects-and-application` (parents `b2e787a70` + `9c1ac7cbe`);
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signed; 2-line message; sole author/committer.
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2. `b2e787a70` — **Cherry-pick** of `5501d1e50` (stub-header updates; original author
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Torsten Wierschin preserved; `Co-authored-by: Copilot` line dropped; signed).
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3. `9c1ac7cbe` — **Merge** `feature/lts-viewer-validation-testing-phase` into
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`feature/qt6-migration-basis-modules-merge`.
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4. `5381c65fe` — **Merge** `feature/qt6-migration-basis-modules-services` into
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`feature/qt6-migration-basis-modules`.
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5. `ab29b7b2d` — **Merge** `origin/feature/migrate-and-test-DDS-targets` into
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`feature/qt6-migration-basis-modules`.
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---
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## Changes Made (Aggregate, by Area)
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Per-area detail lives in the in-tree reports; this summary aggregates the changes that
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landed in the final branch through the branch set:
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1. **Core/Z module** — NGL core libraries (nglcoreapplication, nglDB, nglTools, nglSettings,
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NGLLogger, LtsUtilsCore, LtsCoordTrans, LtsCommandLineParser, codegen_base) migrated to
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Qt6 (`Qt6::` targets, no `Qt5::` references). Report: `BUILD_STATUS_REPORT.md`.
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2. **DDS / RTI code generation** — migration to rtiddsgen 7.7.0 generated API; residual Lts
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service sources completed against the generated API; stub headers updated to include
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generated files (cherry-picked `5501d1e50`); record_replay `fromQVariant` for plain
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enums; PPM MOC exclusion documented. Report: `DDS_MIGRATION_REPORT.md`,
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`DDS_MIGRATION_STATUS.md`, `DDS_MIGRATION_SUMMARY.md`.
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3. **Lts/Proxies** — full proxies migration with test suite. Reports:
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`LTS_PROXIES_MIGRATION_REPORT.md`, `PROXIES_MIGRATION_REPORT.md`.
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4. **Lts/Viewer** — SituationMap/Symbology/DataView/ReportDisplay migrated;
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ArcGIS-dependent targets (situationMapCommon, advancedSymbology, advancedSymbologyXML)
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adapted to ArcGIS Maps SDK for Qt 300.0.0; PDM migration cleared the `svcPdmClient`
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MOC blocker. Report: `VIEWER_MIGRATION_STATUS.md`.
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5. **LTS Tools (Groups 6–9)** — Qt6 migration of all tool groups incl. Group 9 (R,S,T,V,W);
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9 base-state mechanical fixes folded in during validation (FindArcGIS `APPEND`,
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`QUuid` ×3, ArcGIS SDK include, logger init, Qt5-isms ×4).
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6. **LTS Projects / Application (Groups 10–11)** — 9 project plugins and application
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targets migrated; GROUP10 validation documented. Report:
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`GROUP10_VALIDATION_RESULTS.md`.
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7. **Merge engineering (final merge)** — resolved **1 content conflict**
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(`new_docker_build.sh`, 3 hunks, union strategy — Group-6 log line kept, text-only)
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and **24 modify/delete conflicts** (resolved as deletions; 24/24 verified by content
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match against the deleting side's blob).
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8. **Test infrastructure** — ctest integration across groups; per-service unit tests;
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`LtsDataViewTest` viewer hard-requirement test (passes).
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Report: `CTEST-INTEGRATION-STATUS.md`, `INTEGRATION_TEST_REPORT.md`.
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---
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## Test Results
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### Run 1 — basic (BUILD_RTI=ON BUILD_GRANTLEE=ON, Groups 1–3)
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- ✅ Build 100 % for Groups 1–3.
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- ✅ ctest: **614 = 584 Passed + 30 Not Run + 0 Failed + 0 Timeout.**
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- ✅ `svcPdmClient` now builds (MOC blocker cleared by the viewer-validation PDM migration).
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### Run 2 — ArcGIS + Tools + codification (Groups 4–11, +BUILD_WLS=ON)
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- ✅ Groups 1–4: 100 % green.
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- ⚠️ `advancedSymbology`: 9 base-state mechanical fixes folded in (see Changes Made §5);
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final base-state blocker: **`TaskWatcher` removed from ArcGIS SDK 300.0.0**
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(semantic redesign required — reported, not fixed; out of merge scope).
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- ✅ Continuation (Groups 5–11 minus advancedSymbology) built; ctest **615 =
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577 Passed + 34 Not Run + 2 Failed + 2 Timeout**.
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- ✅ The 2 Failed + 2 Timeout are **exactly** the 4 documented base-state failures:
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`bld_vwm_test` (Failed), `bld_vwm_xml_test` (Failed), `bld_bsm_test` (Timeout),
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`taboc_serialtest` (Timeout). **No new ctest regressions from the merge.**
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- ✅ `LtsDataViewTest` built and PASSED (not in the Not-Run list).
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- ✅ All 34 Not-Run tests are pre-existing classes (e.g. duplicate `dds*_smoke`/`dds*_gtest`
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placeholder registrations from `DdsUnitTestsPlaceholder`).
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### Run 3 — viewer-only (`--build-viewer-only`)
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- ✅ Viewer group 100 %: situationMapCommon, advancedSymbologyXML, LtsDataView,
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LtsDataViewTest, LtsReportDisplay.
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- ✅ ctest 34 = **1 PASSED (`LtsDataViewTest`, 1.04 s — hard requirement met)** +
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33 Not Run (pre-existing viewer-only class) + 0 Failed + 0 Timeout.
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- ✅ Script exit code 8 = ctest "Not Run present" status (expected, not a failure).
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### Base-state build failures (all proven pre-existing via per-file git provenance)
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| # | Area | Failing targets | Root cause (all pre-merge) |
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|---|------|-----------------|----------------------------|
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| a | LtsSession | `LtsSession.so` link fail → cascades Splash, OperatorApplication, LtsFileDialog, LtsFileDialogTest (no own errors) | Empty-namespace stub `lts_session_lock_handler.cpp` (commit `b1ff11043`, pre-merge) + `Core::Interface::Ftc::create` not linked. Legacy tree has a 290-line implementation. |
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| b | Qt6 API debt (tools) | LogViewer, ProjectSettingsEditor, AdlerWebSocketSimulator, qledline → cascades displayPanelSimulator | Base-state Qt6 API debt (`Qt::TextColorRole`, `QtWidgets/QAction` misuse, `QString::SkipEmptyParts`, `setMargin`) |
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| c | Stale generated-DDS naming | ddsview, aarApp, ParticipantDataGenerator, tDataSampleGenerator/Receiver | Sources use pre-regeneration DDS accessor naming; `omg::types::optional` misuse |
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| d | CnrProxyTester | CnrProxyTester | `mainwindow.ui` missing (autouic) |
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| e | Apps.json IID checker | Ets / Ahtc / Qatar / L400P2 plugins | PRE_BUILD `LtsAppDescriptorChecker` fails: `apps.json` IIDs (e.g. `tln.view`) have no matching `*_gui_plugin.h`; `EventTimelineClassic` removed pre-merge (`92ad7d468`) |
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| f | 16 missing make targets | 5 project plugins, thp_viewer, videoimport, AsmWorkstationCertifier, 8 GROUP7/9 array entries | (f1) `NGL_COMPILE_RESOURCES` contains a `return()` inside the macro → silently skips the following `NGL_ADD_LIBRARY` (verified via `cmake --trace-source`); (f2) thp_viewer disabled (VLC unavailable, pre-merge comment); (f3) videoimport commented out (pre-merge); (f4) AsmWorkstationCertifier skipped (no botan2 in prebuilt image); (f5) 8 CMake array entries use class names instead of actual target names (`QLedLine`→`qledline`, `QLedMatrix`→`qledmatrix`, `Times`→`ctime`/`stime`, `TopicDiscover`→`topicdiscover`, `VapixConfig`→`vapixconfig`, `SqlBrowser`→`sqlbrowser`, `TextEditorTest`→`textEditorTest`, `TrajectoryWidget`→`TrajectoryShader`) — the real targets exist and build |
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**Merge-regression check: all failing files have zero diff against the merge base
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(`fd3e5e838`) from either parent branch — i.e. none of them were touched by either side
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of the merge. The merge introduced no regressions.**
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---
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## Technical Challenges & Solutions
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### Challenge 1: 25 merge conflicts (1 content + 24 modify/delete)
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**Problem:** The two merge sides diverged heavily on the tooling build script and
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deleted/restructured many files.
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**Solution:** Dry run in a throwaway worktree first; `new_docker_build.sh` resolved with a
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union strategy across 3 hunks (both sides' additions kept, text-only, script checks
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re-run: `bash -n`, `--help`, unknown-option handling, target sets); the 24 modify/delete
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conflicts resolved as deletions with a **24/24 content-match verification** against the
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deleting side's blob before staging.
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### Challenge 2: `CMAKE_PREFIX_PATH` semicolons mangled by docker `bash -c`
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**Problem:** Unquoted `;` separators were split by the shell, poisoning the build cache
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(32 configure errors `Target "Qt6::Location" not found`).
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**Solution:** Quote the prefix in the docker command. A fresh build dir with the exact
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script flags configured cleanly (0 errors), proving cache poisoning was the sole cause.
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Harmless in practice because the script does `rm -rf build4` at every run start.
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### Challenge 3: `NGL_COMPILE_RESOURCES` silently drops targets
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**Problem:** 5 project plugins reported "No rule to make target" although their
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CMakeLists looked complete.
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**Solution:** `cmake --trace-source` proved the macro's internal `return()` (intended as
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"macro done") is treated by CMake as return-from-CMakeLists, skipping the subsequent
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`NGL_ADD_LIBRARY`. Documented as a base-state blocker (working plugins use
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`NGL_ADD_BIG_RESOURCES`); not fixed in this merge (out of scope).
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### Challenge 4: ArcGIS `TaskWatcher` removed in SDK 300.0.0
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**Problem:** `advancedSymbology` uses `TaskWatcher`; the SDK removed the class with a
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semantic `QFuture` redesign.
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**Solution:** 9 base-state mechanical fixes folded in (FindArcGIS include-path `APPEND`,
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`QUuid` ×3, SDK include, logger init, Qt5-isms ×4); the `TaskWatcher` redesign itself is
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reported as a base-state blocker — a semantic port, not a mechanical fix.
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### Challenge 5: `LtsSession` link failure cascade
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**Problem:** `LtsSession.so` fails to link (empty stub `lts_session_lock_handler.cpp`,
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pre-merge commit `b1ff11043`), cascading to Splash/OperatorApplication/LtsFileDialog targets.
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**Solution:** Reported as a base-state blocker. Fix = porting the 290-line legacy
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Qt5 implementation and wiring the Core client — out of merge scope; silently stubbing
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would hide real behavior.
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### Challenge 6: ctest exit-code semantics and duplicate placeholder tests
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**Problem:** Exit code 8 ("Not Run present") looks like a failure; 34 Not-Run tests
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include duplicate same-named `dds*_smoke`/`dds*_gtest` registrations against never-built
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executables (`DdsUnitTestsPlaceholder`).
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**Solution:** Verified the Not-Run set is exactly the pre-existing class (base-state);
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exit 8 treated as expected status, not a regression signal. Regression criterion =
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**new** Failed/Timeout beyond the documented base-state class.
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### Challenge 7: GPG signing in a submodule with worktree-relative signers file
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**Problem:** `gpg.ssh.allowedsignersfile` points at `ci/allowed_signers` (worktree-relative);
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signing/verification had to be proven end-to-end before committing.
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**Solution:** Verified `git verify-commit` = Good on the cherry-pick (`b2e787a70`) and the
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merge commit (`593c221d2`, ED25519). A pre-existing 8-U signature-gate blocker on the
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projects side is documented (see Remaining Work).
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### Challenge 8: Non-incremental build directory
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**Problem:** Diagnostic configure runs polluted the `build4` cache.
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**Solution:** Confirmed the script deletes and recreates `build4` on every run start
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(line 1196), so each run is fresh; contamination could not affect run results.
|
||
|
||
---
|
||
|
||
## Build Instructions
|
||
|
||
All runs use `qt6-after/qt6-migrated-legatus/new_docker_build.sh` with the prebuilt image
|
||
`legatus-qt6-prebuilt:latest` (mounts the pipeline repo at `/workspace`,
|
||
`rti_license.dat`, and `external/` read-only).
|
||
|
||
```bash
|
||
cd /home/nkana/repo/qt6-migration-pipeline/qt-migration-legatus/qt6-after/qt6-migrated-legatus
|
||
|
||
# Run 1 — basic (Groups 1-3), RTI + Grantlee
|
||
./new_docker_build.sh ON --grantlee --group1 --group2 --group3 --docker-image legatus-qt6-prebuilt:latest
|
||
|
||
# Run 2 — ArcGIS + Tools + codification (Groups 4-11), RTI + Grantlee + ArcGIS + Codification + WLS
|
||
./new_docker_build.sh ON --grantlee --arcgis --codification \
|
||
--group4 --group5 --group6 --group7 --group8 --group9 --group10 --group11 \
|
||
--cmake_build_flags "-DBUILD_WLS=ON" \
|
||
--docker-image legatus-qt6-prebuilt:latest
|
||
|
||
# Run 3 — viewer only (skips Groups 1-4, implies --group5 --codification; ctest runs)
|
||
./new_docker_build.sh ON --grantlee --arcgis --build-viewer-only \
|
||
--docker-image legatus-qt6-prebuilt:latest
|
||
```
|
||
|
||
Useful variants: `--no-ctest` (skip tests), `--tests-only` (ctest only),
|
||
`--integration-test` (integration tests only: `test_z_*`, `bld_*`, `tab_*`, `wls_*`),
|
||
`--build-prebuilt-image` (rebuild the image).
|
||
|
||
In-container configure is:
|
||
`cmake .. -DBUILD_TESTING=ON -DBUILD_ALL=ON -DBUILD_SV=ON -DBUILD_WS=ON -DBUILD_AAR=ON -DBUILD_RTI=ON -DBUILD_GRANTLEE=ON -DBUILD_ARCGIS=<run> -DBUILD_CODIFICATION=<run> -DBUILD_VIEWER_ONLY=<run 3> -DCMAKE_CXX_STANDARD=17 -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/opt/Qt/6.10.2/gcc_64;<ArcGIS SDK>;/usr/local"`.
|
||
|
||
---
|
||
|
||
## Dependencies
|
||
|
||
### Qt 6.10.2 (required)
|
||
Core, Widgets, Gui, Network, Sql, Xml, Test, Location, Network, Sensors (cmake configs
|
||
present in the prebuilt image), plus KTextTemplate/Grantlee replacement (`BUILD_GRANTLEE`).
|
||
|
||
### External
|
||
| Dependency | Version / Note |
|
||
|------------|----------------|
|
||
| rtiddsgen (RTI DDS) | 7.7.0 — generated code for DDS/RTI types; `rti_license.dat` mounted |
|
||
| ArcGIS Maps SDK for Qt | 300.0.0 — `BUILD_ARCGIS=ON` (run 2, run 3) |
|
||
| KDReports-qt6 | 2.3.95 — required for `BUILD_CODIFICATION=ON` |
|
||
| cmake | 4.2.3 (prebuilt image) |
|
||
| botan2 | **absent** in prebuilt image → AsmWorkstationCertifier skipped (base-state) |
|
||
| VLC | unavailable → `thp_viewer` disabled (pre-merge decision) |
|
||
|
||
---
|
||
|
||
## Remaining Work
|
||
|
||
### High priority
|
||
1. **ArcGIS `TaskWatcher` redesign** in `advancedSymbology` — semantic port to the
|
||
SDK 300.0.0 `QFuture`-based API (reported base-state blocker).
|
||
2. **`LtsSession` implementation** — port the 290-line legacy implementation of
|
||
`lts_session_lock_handler.cpp` and wire `Core::Interface::Ftc::create`; unblocks the
|
||
Splash/OperatorApplication/LtsFileDialog cascade.
|
||
3. **Merge-regression-free integration is done, but the final branch is NOT pushed**
|
||
(per task instruction) — pushing + the pre-existing 8-U signature-gate fix on the
|
||
projects side are the next integration steps.
|
||
|
||
### Medium priority
|
||
4. Qt6 API debt in tool sources (LogViewer, ProjectSettingsEditor,
|
||
AdlerWebSocketSimulator, qledline).
|
||
5. Stale generated-DDS accessor naming (ddsview, aarApp, ParticipantDataGenerator,
|
||
tDataSampleGenerator/Receiver) — regenerate or adapt to the rtiddsgen 7.7.0 API.
|
||
6. `apps.json` IID consistency (`LtsAppDescriptorChecker`): re-add matching
|
||
`*_gui_plugin.h` or drop the stale IIDs for Ets/Ahtc/Qatar/L400P2.
|
||
7. `CnrProxyTester` — restore missing `mainwindow.ui`.
|
||
|
||
### Low priority
|
||
8. Fix the 8 CMake array entries using class names instead of target names (GROUP7/9) —
|
||
real targets already build.
|
||
9. Decide whether `NGL_COMPILE_RESOURCES`' `return()` is a macro bug (5 plugins silently
|
||
not built) vs. intended — align with `NGL_ADD_BIG_RESOURCES`.
|
||
10. Clean up `DdsUnitTestsPlaceholder` duplicate test registrations; provide botan2 /
|
||
VLC in the prebuilt image if AsmWorkstationCertifier / thp_viewer should build.
|
||
11. `mainwindow.ui`-style autouic gaps and the `ddsview`/`aarApp` naming follow-ups.
|
||
|
||
---
|
||
|
||
## Lessons Learned
|
||
|
||
- **Prove provenance before fixing:** every base-state failure was verified with a
|
||
per-file `git diff --name-only <merge-base>..<branch>` check — 0 files touched by
|
||
either side. This turned "the build is red" into a precise, defensible blocker list
|
||
instead of speculative merge fixes.
|
||
- **Dry-run merges in a worktree:** the 1 content + 24 modify/delete conflicts were fully
|
||
mapped (with 24/24 content-match verification) before the real merge was started.
|
||
- **`return()` inside a CMake macro is CMakeLists-level control flow** — a classic
|
||
silent-target-drop trap; `cmake --trace-source` is the definitive diagnostic.
|
||
- **Quote `CMAKE_PREFIX_PATH` in docker `bash -c`** — unquoted semicolons are shell
|
||
word separators, not cmake list separators.
|
||
- **Non-incremental build dirs remove an entire class of cache-poisoning bugs** — but
|
||
only if diagnostics use separate build dirs (the script's `rm -rf build4` saved the runs).
|
||
- **Cherry-pick equivalence is checkable:** identical `git patch-id --stable` proved
|
||
`b2e787a70` ≡ `5501d1e50` content-wise while allowing attribution-line cleanup.
|
||
- **Signed commits in a submodule** need the worktree-relative `allowed_signers` file in
|
||
place; verify with `git verify-commit` before trusting the pipeline.
|
||
- **ctest "Not Run" (exit 8) is a status, not a failure** — regression criteria must be
|
||
defined as *new* Failed/Timeout beyond the documented base-state class.
|
||
|
||
---
|
||
|
||
## Recommendations
|
||
|
||
### For Future Migrations
|
||
- Define the **base-state failure class** (Failed/Timeout/Not-Run inventory) *before*
|
||
merging; it becomes the objective regression gate.
|
||
- Keep **one validation Docker image + one build script** as the single source of truth;
|
||
per-run variation only via documented flags (`--arcgis`, `--codification`,
|
||
`--build-viewer-only`, `--cmake_build_flags`).
|
||
- **Freeze the legacy tree as read-only** and record it in every report — it is the
|
||
reference for provenance checks and stub ports (e.g. LtsSession).
|
||
- Record **per-branch FINAL-REPORTs** at the pipeline root (as done for each merge
|
||
prompt) — they make the aggregate summary trivial to compile.
|
||
- Prefer **GPG-signed commits from the start** of each branch; retrofitting the signers
|
||
file mid-pipeline creates gate friction (the 8-U blocker).
|
||
|
||
### For the Legatus Merge Specifically
|
||
- Land the final branch (`593c221d2`) only after (a) the 8-U signature-gate is resolved
|
||
on the projects side and (b) the two high-priority blockers (TaskWatcher, LtsSession)
|
||
have an owner or are accepted as known-red with documentation.
|
||
- Add a **regression-gate job** to CI that re-runs Runs 1–3 on every push and fails only
|
||
on *new* Failed/Timeout beyond the documented base-state class.
|
||
- Track the 16 missing make targets as a single follow-up ticket (they are all
|
||
mechanical: name fixes + macro fix + two disabled subdirs).
|
||
|
||
---
|
||
|
||
## Conclusion
|
||
|
||
**✅ The Qt5 → Qt6 6.10.2 migration pipeline is complete at branch level.** All 14
|
||
independent migration branches were integrated through a 4-stage merge chain into the
|
||
final branch `feature/qt6-migration-projects-app-tools-viewer-validation` (`593c221d2`,
|
||
257 commits beyond `main`, GPG-signed throughout). Three full Docker validation runs
|
||
(basic, ArcGIS/Tools/codification, viewer-only) confirm that the merge introduced
|
||
**zero build regressions and zero ctest regressions**: every red target and every
|
||
Failed/Timeout test is a documented, git-proven base-state issue. The hard viewer
|
||
requirement (`LtsDataViewTest`) passes. The two semantic blockers (ArcGIS `TaskWatcher`
|
||
redesign, `LtsSession` implementation) are reported with root cause and fix scope, and
|
||
the remaining work is tracked by priority above.
|
||
|
||
**Next steps:** push the final branch (currently withheld per task instruction),
|
||
resolve the 8-U signature gate on the projects side, then assign owners for the two
|
||
high-priority blockers.
|
||
|
||
---
|
||
|
||
*Report generated: 2026-09-28*
|
||
*Final branch: `feature/qt6-migration-projects-app-tools-viewer-validation` @ `593c221d2` (257 commits beyond `main`)*
|
||
*Build: `new_docker_build.sh` + `legatus-qt6-prebuilt:latest` (3 validation runs, all green within the base-state class)*
|
||
*Qt Version: 6.10.2*
|
||
*Test Pass Rate: Run 1 584/584 active Passed · Run 2 577/579 active Passed (2 Failed/2 Timeout = base-state) · Run 3 LtsDataViewTest Passed (hard requirement)*
|