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Strip the script/Build.sol worked example, leave the library lean - #138
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rain.deploy is the org's worked example. This repo is the library and now carries no example of its own. Deleted: - script/Build.sol (and the script/ directory with it) - src/generated/CodeGennable.sol, the artifact it produced. Forced, not a choice: rainix's rainix-copy-artifacts.yaml hard-fails any repo that commits src/generated/ without a script/Build.sol. - .github/workflows/build-pointers.yaml, which existed only to call that reusable. - testBuildFileForContractCommittedArtifactIsCurrent, which read the deleted artifact off disk. Rewrote the five interface docstrings that pointed at the deleted workflow, the README paragraphs that described the example, and the two test comments that described a committed artifact. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
WalkthroughThe change removes repository-local artifact-generation workflow and script files. Documentation now directs consumers to ChangesArtifact generation ownership
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk:⚪ Minimal · up to The PR removes the worked example and generated artifact workflow while preserving library and fixture behavior; the only remaining issue is a narrowly inaccurate comment about which tests create scratch files, with no runtime or product impact. No actionable merge-blocking risk remains. Possibly related PRs
Suggested reviewers: 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 inconclusive)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
🧪 Generate unit tests (beta)
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In `@test/lib/LibFs.buildFileForContract.t.sol`:
- Around line 33-37: Revise the scratch-file comment in the test documentation
to apply only to tests that generate files, noting that those generation tests
remove their files afterward. Do not imply that every test in the suite writes
under src/generated/; leave the rejection tests outside that description.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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⛔ Files ignored due to path filters (1)
src/generated/CodeGennable.solis excluded by!**/generated/**
📒 Files selected for processing (9)
.github/workflows/build-pointers.yamlREADME.mdscript/Build.solsrc/interface/IIntegrityToolingV1.solsrc/interface/IOpcodeToolingV1.solsrc/interface/IParserToolingV1.solsrc/interface/ISubParserToolingV1.soltest/concrete/CodeGennable.soltest/lib/LibFs.buildFileForContract.t.sol
💤 Files with no reviewable changes (2)
- .github/workflows/build-pointers.yaml
- script/Build.sol
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Deleting src/generated/CodeGennable.sol means src/generated/ does not exist in a fresh checkout. Two suites wrote into it without creating it, relying on the committed artifact to drag the directory into every clone: neither ln, nor vm.writeFile, nor vm.createDir on a child creates the parent. LibFsIsPresentTest went red on CI, 5 of 6 tests. LibFsBuildFileForContractTest passed on CI only because another test in the same contract creates the directory as a side effect before testBuildFileForContractReplacesExistingContent writes there directly; that one fails under --match-test on a fresh tree. Both now create GENERATED_DIR in setUp, the same arrangement LibCodeGenDescribedByMetaHashConstantStringTest already uses for meta/. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The rejection tests assert that nothing is written and never call cleanup, so "every test writes under src/generated/" was wrong about them. Raised by CodeRabbit on #138. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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`main` removed `testBuildFileForContractCommittedArtifactIsCurrent` in #138, which is the entire deliverable of this branch, and narrowed the `LibCodeGen` import in the same way. The only lines this branch still had over `main` were regressions of #138's other changes to the same file — dropping the `GENERATED_DIR` import and the `setUp` that creates `src/generated/` on a fresh clone, and reverting `cleanup`'s docstring to the pre-#138 text that calls `src/generated/` a committed directory holding a committed artifact. Taking `main`'s file wholesale. This branch is now a no-op against `main`. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This branch rewrote the five tooling-interface docstrings to point at `script/Build.sol` "in this package" as a worked example. #138 deleted that file, and rewrote the same five docstrings to point at rainix's `rainix-copy-artifacts.yaml` as the test and at `rain.deploy`'s `script/Build.sol` as the worked example — closing issue #95 in the process. Taking `main`'s docstrings wholesale. Keeping this branch's text would reintroduce a claim that the package ships a worked example, which is exactly what #138 removed. This branch is now a no-op against `main`. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This branch moved `test/concrete/CodeGennable.sol` to `src/concrete/` so the `script/Build.sol` that shipped in the published package could resolve its import. #138 deleted `script/Build.sol` and `src/generated/CodeGennable.sol` outright, so there is no shipped example left to compile and nothing in the published tree points at `test/`. Keeping the move would now push a test-only fixture into the published package for no consumer. `main`'s layout is taken: `CodeGennable` stays in `test/concrete/`, where `.soldeerignore`'s `/test` keeps it out of the package. This branch is now a no-op against `main`. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Take #138's deletion of script/Build.sol and src/generated/CodeGennable.sol, and drop testBuildFileForContractCommittedArtifactIsCurrent with them: it read the deleted artifact. Re-site the licence and copyright parameters into #112's five-arg buildFileForContract overload, which is where the write now lives, and thread them through the wrapper. testBuildFileForContractCreatesTheDirectory, added on main, passes them too. Take main's testFilePrefixExact docstring, which subsumes the testFilePrefixNamesNoScript main deliberately dropped in 95a1e89.
Re-sites the orphaned-artifact refusal onto main's current `LibFs`: - `buildFileForContract` is now the six-arg call applied to `GENERATED_DIR` over a seven-arg `dir` overload (#112), builds the whole file content before touching disk (#100), and unlinks in a `while` loop (#127). The check goes into the shared body, after `vm.createDir` because it is a read of that directory, and before the unlink so a refusal leaves the existing artifact where it found it. - `requireNoOrphanedArtifact(vm, contractName)` is that check applied to `GENERATED_DIR`, over a private `requireNoOrphanedArtifactIn`, mirroring `pathForContract` / `pathForContractIn`. The overload reads the directory it writes into rather than always `GENERATED_DIR`. - The test moves from `test/lib/` to `test/src/lib/` (#56), and its calls carry the licence and copyright `filePrefix` now takes (#135). - `InvalidContractName` / `isContractNameSlow` are `InvalidIdentifier` / `isIdentifierSlow`, and forge-std is 1.16.2. - The README's "Generated paths" section anchors ahead of "Formatter requirements": the worked-example section it sat under is gone (#138) and the publish section it appended to was rewritten (#140). Drops the hand-set `[package].version = "0.2.0"` and the README paragraph that justified it. Autopublish owns the version. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Closes#57
Closes#95
Human ruling, 2026-08-17: "lets remove the Build.sol 'as a worked example' and
make the repo lean, rain.deploy is a fine worked example". The worked example
leaves this repo entirely. Nothing replaces it here.
What changed
Deleted
script/Build.sol— the worked example. The wholescript/directorygoes with it; nothing else was in there.
src/generated/CodeGennable.sol— the artifactBuild.solproduced.This is forced, not a choice. rainix's
rainix-copy-artifacts.yamlreusablehard-fails any repo that commits
src/generated/without ascript/Build.sol, verified atrainix-copy-artifacts.yaml:The two cannot be separated.
.github/workflows/build-pointers.yaml— a 9-line wrapper whose entirejob was calling that reusable. With no
Build.solit has nothing toregenerate.
testBuildFileForContractCommittedArtifactIsCurrentintest/lib/LibFs.buildFileForContract.t.sol— it readsrc/generated/CodeGennable.soloff disk viavm.readFile(LibFs.pathForContract("CodeGennable")). With the artifact goneit reads a file that no longer exists. Its
LibCodeGenimport went with it;the file still imports
InvalidContractNamefrom the same path.Rewritten, because the deletions would otherwise leave the prose dangling
IIntegrityToolingV1,IOpcodeToolingV1,IParserToolingV1(twice) andISubParserToolingV1, allof which ended "See .github/workflows/build-pointers.yaml for an example of
such a test." They now name the mechanism (rainix's
rainix-copy-artifacts.yaml, which regenerates from the consumer'sscript/Build.soland fails on any diff) and carry a full URL torain.deploy'sscript/Build.solas the worked example.README.md, two places. Thescript/Build.solparagraph keeps the factit carried — the path is not a free choice, because the reusable regenerates
from that exact path and hard-fails a repo that commits
src/generated/without one — reframed as a rule this library imposes on consumers, with
rain.deploynamed as the worked example. The## Developsection's"Regenerate the committed example artifact" block and its
forge script script/Build.solcommand are replaced by a description of whatsrc/generated/is now: a scratch directory the suite creates on demand andempties again.
test/concrete/CodeGennable.sol— the contract stays. Its NatSpec said itwas "used by
script/Build.solas a way to show an example"; it is nowdescribed as what it is, the empty contract the suite deploys when it needs an
address holding code. It is used by
LibCodeGen.bytecodeHashConstantString.t.soland at eight sites inLibFs.buildFileForContract.t.sol, and its name is asserted on inLibCodeGen.requireContractName.t.sol:38and used as a contract name inLibCodeGen.describedByMetaHashConstantString.t.sol:65, so it is not renamed.test/lib/LibFs.buildFileForContract.t.sol:33— thecleanupdocstringsaid
src/generated/"is a committed directory in this repo" and that no testname "is
CodeGennable(the committed artifact)". Neither is true after thisPR.
The committed artifact was silently load-bearing for the directory itself
Deleting
src/generated/CodeGennable.solmeanssrc/generated/does not existin a fresh checkout at all. Two suites wrote into it without creating it,
relying entirely on the committed artifact having dragged the directory into
every clone. Neither
ln, norvm.writeFile, norvm.createDiron a childcreates the parent.
This was not caught by the first local run — that tree already had the directory
on disk from an earlier run — and it went red on CI. Both are now fixed on this
branch, with a
setUpthat createsGENERATED_DIR, copying the arrangementLibCodeGenDescribedByMetaHashConstantStringTestalready uses formeta/forexactly this reason:
test/src/lib/LibFs.isPresent.t.sol— five of its six tests failed on CI(
ln: failed to create symbolic link 'src/generated/LibFsIsPresentDangling.sol': No such file or directory, and the same forvm.createDir/vm.writeFile). Itbuilds symlinks and files directly at
src/generated/<name>and never wentthrough
buildFileForContract.test/lib/LibFs.buildFileForContract.t.sol— CI did not catch thisone, and it is real:
testBuildFileForContractReplacesExistingContentcallsvm.writeFileat thegenerated path before any
buildFileForContractin that test. It passed onCI only because another test in the same contract runs earlier and creates the
directory as a side effect. Measured in isolation on a tree with no
src/generated/:A
--match-testor--reruninvocation on a fresh clone would have hit it. Itis fixed rather than left to intra-suite ordering.
The
setUpalso addsGENERATED_DIRto that file'sLibFsimport.Deliberately not touched
test/lib/LibCodeGen.requireContractName.t.sol:34— "Everyscript/Build.solin the Rain org passes the concrete contract's own name".Re-read in context: it is about what consumers pass, and consumers still
have a
script/Build.sol(that is the whole point of the paragraph above).Still accurate, left alone.
.audit/scope.json— a snapshot of an audit run againstauditedCommit7aa85a4, a past commit. Its file list namingscript/Build.soland.github/workflows/build-pointers.yamlis correct for that commit.Editing it would falsify a historical record. Not an oversight — a decision.
.soldeerignore— checked entry by entry; this PR's deletions make none ofthem dead.
.githubstill haspackage-release.yamlandrainix.yaml;/test,/audit,/cache,/dependenciesand the rest are untouched./scriptwas never listed, which is whyscript/has been shipping in thepublished package; that stops by deletion, not by an ignore entry. The
pre-existing dead entries (
.vscode,/docs) are .soldeerignore carries entries for .vscode and /docs, paths that have never existed in this repo #91's scope, not this PR's,and are left alone.
.gas-snapshot— tracked and 0 bytes (wc -c .gas-snapshot→0).Deleting a test changes nothing in an empty file and there is nothing to
regenerate. Dead gas-snapshot apparatus: an empty tracked .gas-snapshot plus three config entries servicing it, and no snapshot taken anywhere #84 is correct that the apparatus is dead; fixing that is Dead gas-snapshot apparatus: an empty tracked .gas-snapshot plus three config entries servicing it, and no snapshot taken anywhere #84's
scope.
REUSE.toml— no annotation becomes dead..github/workflows/**/stillcovers two workflows; neither deleted
.solfile was annotated there (bothcarried their own SPDX headers).
reuse lintpasses, 46/46 files.slither.config.json— neither deleted path was the subject of an entry.It carries
detectors_to_excludeandfilter_paths: "forge-std"and nothingelse.
slither .is clean.What is no longer guarded, and how it can regress silently
src/generated/CodeGennable.sollived insidesrc, soforge buildcompiledit and
forge fmt --checkformatted it. That made the committed artifact theonly end-to-end proof in this repo that what
LibCodeGenandLibFsemit is(a) compilable Solidity and (b) already formatter-clean. The unit suite asserts
on emitted strings; nothing else in this repo compiles or formats the output.
After this PR that proof is gone from this repo, and it is not replaced. A
change to
LibCodeGen.filePrefix(), or to theMAX_LINE_LENGTH/NEWLINE_DUE_TO_MAX_LENGTHwrapping arithmetic, that emits Solidity which doesnot compile — or which
forge fmtwould reflow — leaves the whole suite heregreen,
forge fmt --checkgreen andslither .green. Nothing in this repoobserves it.
rain.deploycatches it downstream on its own next regeneration: itsscript/Build.solwrites into a committedsrc/generated/, itsforge buildcompiles that, and
rainix-copy-artifactsregenerates and diffs. That is a realsignal, but it is slower and out of this repo.
No replacement is invented here — no compile-the-output test, no fixture, no
smaller example. That is exactly the scope the ruling removes. The gap is the
accepted cost of this PR.
Issue relationships
testBuildFileForContractCommittedArtifactIsCurrentchecks only the header, never the generated artifact body #57 — "testBuildFileForContractCommittedArtifactIsCurrentchecksonly the header, never the generated artifact body". Closed by deletion of
the subject, not by fixing the assertion.
testBuildFileForContractCommittedArtifactIsCurrentchecks only the header, never the generated artifact body #57's proposed fix was to importBuildfromscript/Build.sol, callnew Build().run()and compare the wholeregenerated file; that fix cannot exist after this PR, because neither the
script nor the committed artifact it compared does. The weak assertion is gone
because the test is gone.
.github/workflows/build-pointers.yaml, which.soldeerignorestrips from thepublished package". All five interface docstrings point consumers at .github/workflows/build-pointers.yaml, which .soldeerignore strips from the published package #95's problem is entirely the five docstrings; its
.soldeerignore:4citation is the measured cause (.githubis excluded), nota second defect, and its proposed fix touches only the five sites. All five now
carry a full
https://github.com/rainlanguage/...URL and no repo-relativepath, so they resolve identically from this repo and from
dependencies/rain-sol-codegen-<version>/src/interface/. That is the whole ofwhat All five interface docstrings point consumers at .github/workflows/build-pointers.yaml, which .soldeerignore strips from the published package #95 asks for, so it closes.
constant caches for prebuilt function-pointer tables") is contradicted by two
things:
LibCodeGen's surface (11 emitting functions, only 5 about functionpointers) and "the repo's own committed example", which contains zero function
pointers. This PR removes the second leg — there is no committed example any
more — and leaves the first leg standing untouched. The opening is not
rewritten here; that is README's opening describes only the function-pointer use case, contradicted by LibCodeGen's surface and by the repo's own committed example #87's own scope. Nothing in the opening became newly
false because of this PR.
published package ships
script/Build.sol, whoseimport {CodeGennable} from "../test/concrete/CodeGennable.sol"cannot resolvebecause
.soldeerignoreexcludes/test. Deletingscript/removes thatbroken file from the package. The published package is never compiled as published, and ships a file whose import it excludes #76's actual subject is the shape, not the
symptom — "the published package is never compiled as published", and nothing
here adds that CI job — so it is not closed and no claim is made on it.
touched" notes above.
A judgement call I was handed, and disagreed with after measuring
The brief's position was to add
src/generatedto.gitignore, on the reasoningthat "today the committed artifact is what stopped scratch from looking like an
untracked-file mess". I measured that premise and it is false, so the entry
is not in this PR. Three pieces of evidence:
The committed artifact never suppressed anything. On
origin/main(
2b3fb07), in a clean worktree with the artifact present:Scratch under
src/generated/was always untracked and always visible. Theentry would not restore a property that main had; it would remove one.
The tree is clean without it. On this branch, after a full
nix develop -c forge test:git status --porcelainis empty andls -A src/generatedprints nothing. Every test removes its own file, and anempty directory is invisible to git. The entry is not load-bearing on the
normal path.
meta/is the in-repo precedent for exactly this shape, and it isdeliberately not ignored.
test/lib/LibCodeGen.describedByMetaHashConstantString.t.sol:34states the design in as many words: "
meta/holds no committed file, sonothing in a fresh clone creates it ... Every fixture below is removed again,
which leaves the directory empty and so invisible to git." After this PR
src/generated/is the same kind of directory asmeta/. Ignoring one andnot the other splits one arrangement into two.
The entry changes behaviour only on the abnormal path — an interrupted or failed
run — and there it hides a leftover
.solfile thatforge build,forge fmt --checkandslither .all still compile and lint, in a directory.soldeerignoredoes not exclude from the published package. That noise is thesignal, so it is left visible. If you want the entry anyway, say so and it is one
line.
QA
library behaviour. It deletes one test
(
testBuildFileForContractCommittedArtifactIsCurrent) and rewrites commentsand docs. A "fails on base" check is meaningless for a deletion; the equivalent
verification is the count delta, measured below:
main142 → branch 141, same18 suites, no other test added or removed. The two
setUpfunctions arediscriminated the other way round, and it is measured: with them removed, on a
tree with no
src/generated/,forge test --match-path 'test/src/lib/LibFs.isPresent.t.sol'is 5 failed / 1passed and
forge test --match-test testBuildFileForContractReplacesExistingContentis 1 failed; with them, 6 passed and 1 passed. Both failure outputs are quoted
above.
setUpbodies were mutated by deletion — thestrongest available mutation for a one-statement function — and both are
KILLED, by the isolated runs quoted above. Nothing else: no other executable
line is added by this PR, so there is no other new line whose mutation a test
could observe. That absence is the same fact as the "what is no longer guarded"
section, stated from the mutation side: the end-to-end compile/format proof
that the committed artifact provided is gone and is deliberately not replaced.
main— the expectedcontent is the literal committed text plus
address.codehash, deliberatelynot
LibCodeGen's own output, per that file's docstring. For this PR's ownclaims the oracles are external and quoted above: rainix's
rainix-copy-artifacts.yamlsource for thesrc/generated/-without-Build.solhard-fail, the issue bodies of
testBuildFileForContractCommittedArtifactIsCurrentchecks only the header, never the generated artifact body #57/All five interface docstrings point consumers at .github/workflows/build-pointers.yaml, which .soldeerignore strips from the published package #95/README's opening describes only the function-pointer use case, contradicted by LibCodeGen's surface and by the repo's own committed example #87/The published package is never compiled as published, and ships a file whose import it excludes #76/.soldeerignore carries entries for .vscode and /docs, paths that have never existed in this repo #91/Dead gas-snapshot apparatus: an empty tracked .gas-snapshot plus three config entries servicing it, and no snapshot taken anywhere #84 read in full, and themeasured command output in this section.
entirely with no dangling reference. Covered: the script, its artifact, its
workflow and the test that read it are deleted; all five interface docstrings,
both README passages and both stale test comments are rewritten;
.audit/scope.json,.soldeerignore,.gas-snapshot,REUSE.toml,slither.config.jsonandrequireContractName.t.sol:34were each checked andeach verified to need no change, with the reason stated above. The
.gitignoreitem was measured and argued rather than applied — see the judgement-call
section. Not covered, and deliberately out of scope: README's opening describes only the function-pointer use case, contradicted by LibCodeGen's surface and by the repo's own committed example #87's README opening,
.soldeerignore carries entries for .vscode and /docs, paths that have never existed in this repo #91's dead
.soldeerignoreentries, Dead gas-snapshot apparatus: an empty tracked .gas-snapshot plus three config entries servicing it, and no snapshot taken anywhere #84's gas-snapshot apparatus, and The published package is never compiled as published, and ships a file whose import it excludes #76'scompile-the-package-as-published CI job.
Everything below ran via
nix develop -c, foundry and reuse and slither from theflake. Branch
2026-08-17-strip-worked-exampleoff liveorigin/main(
2b3fb07), fresh clone, no rebase.forge test— before and afterorigin/main(2b3fb07), clean worktree:This branch, run with
src/generated/deleted first so the tree is what a freshclone actually gives (
ls: cannot access 'src/generated': No such file or directory):A drop of exactly one test, in the same 18 suites — the deleted
testBuildFileForContractCommittedArtifactIsCurrent, and nothing else. That isthe predicted 141. The two
setUpfunctions add no test.The first push of this branch went red on
rainix / test / testwith 5 failures,all of them the missing-directory defect described above. The first local run had
missed it because that working tree already had
src/generated/on disk from anearlier run; the rerun above deletes the directory first, which is the condition
CI runs under.
Isolated fresh-tree runs, each starting from
rm -rf src/generatedBoth fail without the
setUp, with the errors quoted above.forge fmt --checkNo diff. (Two unrelated warnings on stderr, present on
maintoo: the foundrynightly notice and
unknown config section in foundry.toml: [package].)reuse lintslither .Zero findings.
slither.config.jsonneeded no edit; neither deleted path was thesubject of an entry in it.
Clean tree after a full test run
The directory is recreated by the run and left empty, so git sees nothing.
Semantic sweep, not just grep-zero
grep -rnover the tree (excluding.git,dependencies,out,cache) forBuild.sol,build-pointers,committedandexample:build-pointerssurvives only in.audit/scope.json, which is thehistorical audit snapshot and is deliberately unedited.
Build.solmention is either therain.deployURL, or astatement about what a consumer's
script/Build.solmust be named — bothstill true — or
.audit/scope.json.is about consumer repos,
rain.deploy, or the literal-oracle rule in the testsuite. None describes an example in this repo.
CodeRabbit
CodeRabbit's check reports
pass / Review rate limited, which is an absence ofreview rather than a passed one — but it did post one thread, found via GraphQL
rather than via the check:
test/lib/LibFs.buildFileForContract.t.sol:47, "Scope the scratch-file commentto file-generating tests". Valid, and fixed in
0445cb3. Thecleanupdocstring this PR rewrote said "Every test writes under
src/generated/", andthe rejection tests in that file assert that nothing is written and never call
cleanupat all. Reworded to say what is true of each half. Thread resolved.Zero unresolved threads at the time of writing.
Mutation
Two executable lines are added by this PR, both
vm.createDir(GENERATED_DIR, true)in a
setUp. Each was mutated by deletion — the only mutation a one-statementfunction has — and each is KILLED, measured rather than assumed, by the
isolated fresh-tree runs above:
test/src/lib/LibFs.isPresent.t.solsetUp'svm.createDirtestIsPresentFile,testIsPresentDirectory,testIsPresentSymlink,testIsPresentDanglingSymlink,testBuildFileForContractReplacesDanglingSymlink(5 of 6, on a tree with nosrc/generated/)test/lib/LibFs.buildFileForContract.t.solsetUp'svm.createDirtestBuildFileForContractReplacesExistingContent, under--match-teston a tree with nosrc/generated/These are the pre-fix states, so the "mutants" are literally the two red runs
quoted above rather than a re-derivation of them.
Nothing else. The rest of the PR is deletions, comments and docs; no other
executable line changes, so there is no other line whose mutation a test could
observe. That absence is the same fact as "what is no longer guarded" above,
stated from the mutation side.