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Records what libs/vfscommonupdate/project actually cover today (verified: vendorlib -> projectroot lib trees only; _vfscommon.vfs modules+lib only; kit vfs lib_tcl<N> hand-maintained), the design points to settle (per-kit declarative participation - candidate home G-024 mapvfs toml; supersession semantics per G-035; vendorlib/vfs folder-name mismatch; lib_tcl8 coverage), rejected alternatives, and the interim hand-copied tcludp state. Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.commaster
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# G-037 Propagate platform vendor libraries into kit vfs lib_tcl trees via make.tcl |
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Status: proposed |
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Scope: src/make.tcl (new or extended step), src/vendorlib_tcl8 + src/vendorlib_tcl9 (sources), src/vfs/<kit>.vfs/lib_tcl8 + lib_tcl9 (targets), punkcheck tracking |
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Acceptance: with a newer package version placed under src/vendorlib_tcl9/<platform>, one documented make.tcl invocation updates the participating src/vfs/*/lib_tcl9 trees - installing the new package and removing or explicitly retiring the superseded version (no silent mixed-version provision, per the G-035 concerns) - with punkcheck-tracked provenance; which vfs folders participate is explicitly declared per kit rather than blanket-copied (kit vfs package sets may intentionally differ), with the declaration mechanism recorded (candidate home: the G-024 mapvfs toml); a subsequent `make.tcl project` yields kits loading the new version (provable via the tcludp case: built punk902z reports `package require udp` == 1.0.13 with no udp1.0.12 folder remaining in its vfs); the lib_tcl8 tree gets the same treatment or an explicit exclusion rationale in the goal record. |
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## Context |
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Motivating case (2026-07-08, the G-036 wedge remedy): tcludp 1.0.13 was placed in |
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`src/vendorlib_tcl9/win32-x86_64` and `make.tcl libs`, `make.tcl vfscommonupdate`, and |
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`make.tcl project` were all run - yet the rebuilt punk902z still loaded udp 1.0.12, because |
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every kit vfs still carried `lib_tcl9/udp1.0.12`. The upgrade had to be hand-copied into |
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each kit vfs folder (done for punk9win.vfs and punk9win_for_tkruntime.vfs in commit |
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a1b232dc). |
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What the existing targets actually cover (verified in make.tcl at the time of writing): |
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- `libs`/`project` (VENDORLIB steps, make.tcl ~lines 2420-2475): copy `src/vendorlib` -> |
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`<projectroot>/lib`, and `src/vendorlib_tcl<N>/{allplatforms,<platform>}` -> |
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`<projectroot>/lib_tcl<N>/{allplatforms,<platform>}` (punkcheck-tracked). These feed |
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tclsh-based use of the project tree - never the kit vfs folders. |
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- `vfscommonupdate` (~lines 1934-1963): wholesale-replaces `src/vfs/_vfscommon.vfs/modules` |
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and `.../lib` from `<projectroot>/modules` and `<projectroot>/lib`. `_vfscommon.vfs` |
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carries no `lib_tcl<N>` platform tree at all. |
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- Kit vfs `lib_tcl<N>` folders (`punk9win.vfs`, `punk9win_for_tkruntime.vfs`, |
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`punk8win.vfs`, etc.) are hand-maintained; `project` merges `_vfscommon.vfs` over each |
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kit vfs but nothing sources the platform-lib payloads from vendorlib. |
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## Approach (design points to settle) |
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- **Per-kit participation must be declarative, not blanket.** Kit vfs package sets |
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intentionally differ (e.g. punk9win vs punk9win_for_tkruntime vs slim kits), and a |
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vendorlib drop must not force a package into every kit. Candidate home for the |
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declaration: the mapvfs config, especially once G-024 moves it to toml (a per-kit |
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package/include list or a `vendorlib` participation flag). |
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- **Supersession semantics**: installing `foo<newver>` alongside `foo<oldver>` creates |
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mixed-version provision (G-035 territory) - the step should remove or explicitly retire |
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the superseded folder, or refuse with a clear message. Folder-name conventions currently |
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differ (`udp1.0.12` in vfs vs `tcludp1.0.13` in vendorlib) - the sync should make the |
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target name match the source, and tolerate legacy names when detecting supersession |
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(pkgIndex-declared package name/version, not folder name, is the truth). |
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- **Platform axis**: vendorlib platform folders are per-`<platform_generic>` |
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(win32-x86_64 today); kit vfs folders are platform-specific by kit. The step should map |
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vendorlib platform -> the kits built for that platform (mapvfs already knows runtime -> |
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vfs -> output mappings). |
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- **punkcheck provenance** as with the other install steps (skip unchanged, record source). |
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- **lib_tcl8**: same mechanism should serve the tcl8 kits (punk8win.vfs still bundles udp |
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1.0.12 as of 0.4.3 - see G-036 loose ends), or the exclusion is recorded here. |
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## Alternatives considered |
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- Extending `vfscommonupdate` to also sync platform libs into `_vfscommon.vfs` - rejected |
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as-is: `_vfscommon.vfs` is deliberately platform-neutral common payload; platform libs |
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are per-kit and per-platform, so the declaration belongs at the kit/mapvfs level. |
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- Documented manual copy as the permanent process - rejected: silent staleness (the |
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motivating case shipped kits with a known-buggy tcludp through three make invocations |
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with no warning). |
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## Notes |
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- Related goals: G-024 (mapvfs toml - natural home for per-kit declarations), G-026 (vendor |
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provenance policy), G-035 (mixed-version provision characterisation), G-004/G-005 (the |
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no-committed-binaries endgame would reshape where these payloads come from), G-036 (the |
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motivating tcludp upgrade). |
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- Interim state: tcl9 kits carry tcludp1.0.13 (hand-copied, commit a1b232dc); punk8win.vfs |
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still carries udp1.0.12. |
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