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A module's directory is never shared code, held or not (hq issue 278)

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The merge of mesh-catalog 7f99fb4a rebuilt 103 modules with the build agent in tier 0, and ADR
0236 recorded it as "a change to the build agent rebuilds most of the catalogue". The agent had
not changed: modules/showcase/index.ts had. showcase is the catalogue's reference module, held
by no machine, and its manifest was not in the merge, so whatTheMergeTouched read the file as
shared code and rebuilt everything built from the repository (88 came out byte-identical). The
agent stood first only because everything is built by it.

Whether a directory is a module is a fact of the repository at the merge commit, so the forge's
announcer now says it: module_dirs, the changed files' directories holding a module.json there,
with module_dirs_said. A changed file inside one is that module's business; only a file in no
such directory is shared. An announcer that does not say keeps the old rule. `plans` what-if
takes the same list as module-dirs.

And a regression for the open question: nothing depends on the build agent except by being
built by it, and built-by never widens a plan, so a change to the agent - manifest or program -
rebuilds the agent alone; what moved beside it is ordered after it.
This commit is contained in:
jochen
2026-10-06 19:55:25 +02:00
parent 4635341a9d
commit b1e02aca1b
8 changed files with 208 additions and 6 deletions
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internal/catalogue/verbs.go
+5 -3
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@@ -109,9 +109,11 @@ var ControllerVerbs = []Verb{
"repository": "owner/repository: the plan a merge there would produce, saving nothing (what-if); with paths or modules",
"paths": "with repository: the files the merge would change, comma-separated, from the repository's root",
"modules": "with repository: or the modules it would change, comma-separated",
"limit": "how many plans to list (default 10); only when listing",
"why": "with stop or close: why it is ended by hand — required, and recorded in the hand-act log (novox/hq to-be 45 §7)",
"cause": "with stop or close: the cause in a word, or a condition's kind (optional)",
"module-dirs": "with repository and paths: the directories holding a module.json at the commit, comma-separated, " +
"as the forge's announcer says them (novox/hq issue 278); without it, a directory is a module only when the paths hold its manifest",
"limit": "how many plans to list (default 10); only when listing",
"why": "with stop or close: why it is ended by hand — required, and recorded in the hand-act log (novox/hq to-be 45 §7)",
"cause": "with stop or close: the cause in a word, or a condition's kind (optional)",
}, nil)},
{Name: "plan", Description: "What one machine would run, and why: the declaration the mesh would send it — " +
"or, with files, the files it would be given.",