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Merge pull request 'Phase 2 PR 61 -- Close V1_ARCHIVE_STATUS.md: Streams D + E done' (#60) from phase-2-pr61-scrub-v1-archive-residue into v2

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2026-04-18 23:22:58 -04:00
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# V1 Archive Status (Phase 2 Stream D, 2026-04-18)
# V1 Archive Status — CLOSED (Phase 2 Streams D + E complete)
This document inventories every v1 surface that's been **functionally superseded** by v2 but
**physically retained** in the build until the deletion PR (Phase 2 PR 3). Rationale: cascading
references mean a single deletion is high blast-radius; archive-marking lets the v2 stack ship
on its own merits while the v1 surface stays as parity reference.
> **Status as of 2026-04-18: the v1 archive has been fully removed from the tree.**
> This document is retained as historical record of the Phase 2 Stream D / E closure.
## Archived projects
## Final state
| Path | Status | Replaced by | Build behavior |
|---|---|---|---|
| `src/ZB.MOM.WW.OtOpcUa.Host/` | Archive (executable in build) | `OtOpcUa.Server` + `Driver.Galaxy.Host` + `Driver.Galaxy.Proxy` | Builds; not deployed by v2 install scripts |
| `src/ZB.MOM.WW.OtOpcUa.Historian.Aveva/` | Archive (plugin in build) | TODO: port into `Driver.Galaxy.Host/Backend/Historian/` (Task B.1.h follow-up) | Builds; loaded only by archived Host |
| `tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive/` | Archive | `Driver.Galaxy.E2E` + per-component test projects | `<IsTestProject>false</IsTestProject>` — `dotnet test slnx` skips |
| `tests/ZB.MOM.WW.OtOpcUa.IntegrationTests/` | Archive | `Driver.Galaxy.E2E` | `<IsTestProject>false</IsTestProject>` — `dotnet test slnx` skips |
All five v1 archive directories have been deleted:
## How to run the archived suites explicitly
| Path | Deleted | Replaced by |
|---|---|---|
| `src/ZB.MOM.WW.OtOpcUa.Host/` | ✅ | `OtOpcUa.Server` + `Driver.Galaxy.Host` + `Driver.Galaxy.Proxy` |
| `src/ZB.MOM.WW.OtOpcUa.Historian.Aveva/` | ✅ | `Driver.Galaxy.Host/Backend/Historian/` (ported in Phase 3 PRs 51-55) |
| `tests/ZB.MOM.WW.OtOpcUa.Historian.Aveva.Tests/` | ✅ | `Driver.Galaxy.Host.Tests/Historian/` |
| `tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive/` | ✅ | Per-component `*.Tests` projects + `Driver.Galaxy.E2E` |
| `tests/ZB.MOM.WW.OtOpcUa.IntegrationTests/` | ✅ | `Driver.Galaxy.E2E` + `Driver.Modbus.IntegrationTests` |
```powershell
# v1 unit tests (494):
dotnet test tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive
## Closure timeline
# v1 integration tests (6):
dotnet test tests/ZB.MOM.WW.OtOpcUa.IntegrationTests
```
- **PR 2 (2026-04-18, phase-2-stream-d)** — archive-marked the four v1 projects with
`<IsTestProject>false</IsTestProject>` so solution builds and `dotnet test slnx` bypassed
them. Capture: `docs/v2/implementation/exit-gate-phase-2-final.md`.
- **Phase 3 PR 18 (2026-04-18)** — deleted the archived project source trees. Leftover
`bin/` and `obj/` residue remained on disk from pre-deletion builds.
- **Phase 2 PR 61 (2026-04-18, this closure PR)** — scrubbed the empty residue directories
and confirmed `dotnet build ZB.MOM.WW.OtOpcUa.slnx` clean with 0 errors.
Both still pass on this dev box — they're the parity reference for Phase 2 PR 3's deletion
decision.
## Parity validation (Stream E)
## Deletion plan (Phase 2 PR 3)
The original 494 v1 tests + 6 v1 integration tests are **not** preserved in the v2 branch.
Their parity-bar role is now filled by:
Pre-conditions:
- [ ] `Driver.Galaxy.E2E` test count covers the v1 IntegrationTests' 6 integration scenarios
at minimum (currently 7 tests; expand as needed)
- [ ] `Driver.Galaxy.Host/Backend/Historian/` ports the Wonderware Historian plugin
so `MxAccessGalaxyBackend.HistoryReadAsync` returns real data (Task B.1.h)
- [ ] Operator review on a separate PR — destructive change
Steps:
1. `git rm -r src/ZB.MOM.WW.OtOpcUa.Host/`
2. `git rm -r src/ZB.MOM.WW.OtOpcUa.Historian.Aveva/`
(or move it under Driver.Galaxy.Host first if the lift is part of the same PR)
3. `git rm -r tests/ZB.MOM.WW.OtOpcUa.Tests.v1Archive/`
4. `git rm -r tests/ZB.MOM.WW.OtOpcUa.IntegrationTests/`
5. Edit `ZB.MOM.WW.OtOpcUa.slnx` — remove the four project lines
6. `dotnet build ZB.MOM.WW.OtOpcUa.slnx` → confirm clean
7. `dotnet test ZB.MOM.WW.OtOpcUa.slnx` → confirm 470+ pass / 1 baseline (or whatever the
current count is plus any new E2E coverage)
8. Commit: "Phase 2 Stream D — delete v1 archive (Host + Historian.Aveva + v1Tests + IntegrationTests)"
9. PR 3 against `v2`, link this doc + exit-gate-phase-2-final.md
10. One reviewer signoff
- `Driver.Galaxy.E2E` — cross-FX subprocess parity (spawns the net48 x86 Galaxy.Host.exe
+ connects via real named pipe, exercises every `IDriver` capability through the
supervisor). Stability-findings regression tests (4 × 2026-04-13 findings) live here.
- Per-component `*.Tests` projects — cover the code that moved out of the monolith into
discrete v2 projects. Running `dotnet test ZB.MOM.WW.OtOpcUa.slnx` executes all of them
as one solution-level gate.
- `Driver.Modbus.IntegrationTests` — adds Modbus TCP driver coverage that didn't exist in
v1 (DL205, S7-1500, Mitsubishi MELSEC via pymodbus sim profiles — PRs 30, 56-60).
- Live-stack smoke tests (`Driver.Galaxy.E2E/LiveStack/`) — optional, gated on presence
of the `OtOpcUaGalaxyHost` service + Galaxy repository on the dev box (PRs 33, 36, 37).
## Rollback
If Phase 2 PR 3 surfaces downstream consumer regressions, `git revert` the deletion commit
restores the four projects intact. The v2 stack continues to ship from the v2 branch.
`git revert` of the deletion commits restores the projects intact. The v2 stack continues
to ship from the `v2` branch regardless.