feat(engine): a config section declares its shape once, and the engine resolves its path fields - #279
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WalkthroughThe CLI engine now supports ArkType-based configuration schemas. Schema sections derive validation, field diagnostics, defaults, and provenance-aware relative path resolution. Plain-object results expose Priority: ⬇️ Low Merge Risk: 🟡 Moderate · up to Schema-backed configuration can return incorrectly typed values, rerun custom transformations, or leave paths unresolved. These issues should be corrected before releasing the new API. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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🧪 Generate unit tests (beta)
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In `@packages/cli-engine/src/config-schema.ts`:
- Line 170: Update validateSectionWithSchema to save the existing current value
before assigning the active validation context, then restore that saved value in
the finally block instead of setting current to undefined, preserving outer
validation context during reentrant validation.
- Line 71: Update ConfigSchemaValue and the schema validation/augmentation flow
to reserve or reject user-defined baseDir, while including the generated baseDir
property in the inferred type with matching optionality. Ensure schema-defined
values cannot be overwritten by the generated string augmentation, preserving
validation and the returned type contract.
- Line 147: Update the validation flow around schema(validated) so defaulted
path fields are resolved without invoking the complete schema a second time;
preserve each ArkType morph’s single execution and avoid revalidating
transformed output against its input schema. Add a regression test using a
non-idempotent pipe to verify the schema is evaluated only once.
- Line 74: Update isPlainObject to return true only for objects whose prototype
is Object.prototype or null, while continuing to reject null and arrays. Add a
regression test covering an ArkType schema that accepts a non-plain object,
verifying copyPlainData and validation preserve the object’s identity and data.
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docs/architecture/adrs/0005-config-sections-declare-their-shape.mddocs/architecture/adrs/README.mddocs/reference/error-reference.mdpackages/cli-engine/package.jsonpackages/cli-engine/src/config-schema.tspackages/cli-engine/src/config-section.tspackages/cli-engine/src/exports/index.tspackages/cli-engine/tests/config-schema.test.tspackages/cli-engine/tests/engine.test.tspackages/cli-engine/tests/fixtures/config/schema-chain/child/prisma.config.tspackages/cli-engine/tests/fixtures/config/schema-chain/prisma.config.ts
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…e resolves its path fields
A command family now declares the config section it accepts as a schema,
with the fields that hold paths marked `path`, and the engine derives
validation, the diagnostics naming the field and the file to fix, and
the resolution of every path field from that one declaration.
configSchema is arktype in a scope with one extra keyword: `path`, a
string that validation resolves against the directory of the config
file that declared the value's top-level key, using the provenance the
chain merge already records. defineConfigSection({ name, schema })
derives the validator; a hand-written validate stays available for a
section a schema cannot express. Each arktype error becomes a
CLI.CONFIG_FIELD_INVALID diagnostic with meta.section, meta.field and
where.path. A plain-object section comes back with baseDir, the nearest
declaring file's directory. An absent section validates as {}.
Why: the engine handed sections over as written and families resolved
relative paths against cwd, so contract emit --config ./sub/prisma.config.ts
run from the parent looked for ./contract.prisma in the parent. Only the
family knows which fields are paths; only the engine knows which file
wrote them. The declaration puts the first where the second can use it.
Design: ADR 0005.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Signed-off-by: willbot <w.a.madden+machine@gmail.com>
Signed-off-by: Will Madden <madden@prisma.io>
…ptions forward 0.5.0 reached the registry after #233, so the changed engine ships under 0.6.0. The recorded engine-pin exceptions move with it: they expire when the families release peering 0.6.0 and the follow-up bump pins those releases. The conformance task now also depends on the prisma package build. The import-purity sweep reads packages/prisma/dist, but nothing in the shell depends on that package, so turbo could run the sweep before the build finished and report that no built JavaScript was swept. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>
… validation runs the schema once Review follow-ups on the schema-declared sections: - arktype morphs a literal default when the schema is defined, but a thunk default when it is applied. A relative path default is therefore declared as ["path", "=", () => "./migrations"] and resolves against the nearest file like an authored value; a relative literal default is refused at definition with that guidance. The second schema pass that worked around literal defaults is gone, so no other morph runs twice. - baseDir is part of ConfigSchemaValue and reserved: a section that writes it is refused with a diagnostic naming the field. - Only objects with a plain prototype are copied before validation and extended with baseDir, so a Date, Map or class instance a schema accepts keeps its identity and data. - A validation started from inside another restores the outer context. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>
f973d15 to
37b11fd
Compare
CodeQL read the JSON.stringify of a config value inside a code-shaped error message as code construction from unsanitised input. The message now quotes the value plainly and shows the thunk form with a placeholder. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io>
All four review threads are addressed in f973d15 and later commits; three were confirmed resolved by the reviewer and the fourth (typed, reserved baseDir) is implemented with tests.
…ngine resolves its paths (prisma#30372) ## At a glance The `orm` section of `prisma.config.ts` is declared once, with the fields that are paths marked as such: ```ts // packages/1-framework/3-tooling/config-loader/src/orm-section.ts export const ormConfigSchema = configSchema({ family: { kind: "'family'", ...descriptorFields, emission: 'object' }, target: { kind: "'target'", ...targetLikeFields }, adapter: { kind: "'adapter'", ...targetLikeFields }, 'driver?': { kind: "'driver'", ...targetLikeFields }, 'extensions?': [{ kind: "'extension'", ...targetLikeFields }, '[]'], 'db?': { 'connection?': 'unknown' }, 'contract?': { source: { load: 'Function', 'inputs?': 'path[]', 'format?': 'string' }, output: ['path', '=', () => 'src/prisma/contract.json'], }, migrations: [{ dir: ['path', '=', () => './migrations'] }, '=', () => ({})], 'formatter?': { 'indent?': "number.integer >= 1 | 'tab'", 'newline?': "'LF' | 'CRLF'" }, }).narrow(/* familyId and targetId agreement across descriptors */); ``` Given this project and this invocation: ``` exp/ sub/ prisma.config.ts # orm: ormConfig({ contract: './contract.prisma', migrations: { dir: './migrations' } }) contract.prisma ``` | Run from | Command | Before | After | | --------- | ------------------------------------------------------ | -------------------------------------------------------------- | ------------------------------ | | `exp/sub` | `prisma contract emit --config ./prisma.config.ts` | writes `exp/sub/contract.json` | same | | `exp` | `prisma contract emit --config ./sub/prisma.config.ts` | `CONTRACT.SOURCE_LOAD_FAILED`: looks for `exp/contract.prisma` | writes `exp/sub/contract.json` | Config files are unchanged. ## The decision A relative path in `prisma.config.ts` is relative to the file that wrote it. Only the ORM knows which of its fields are paths; only the CLI engine knows which file wrote each value, because its chain merge records that per key. The schema declaration puts the first where the second can use it. The engine derives validation, a `CLI.CONFIG_FIELD_INVALID` diagnostic per bad field naming the file to fix, and the resolution of every `path` field, from the one declaration; the ORM writes no validation, resolution, or path-anchoring code. This is [prisma/prisma-cli ADR 0005](https://github.com/prisma/prisma-cli/blob/main/docs/architecture/adrs/0005-config-sections-declare-their-shape.md), shipped in engine 0.6.0 by prisma/prisma-cli#279; every product that mounts commands declares its section this way. ## Why it broke The ORM's own `prisma` bin resolved config paths in its loader against the config file. The unified `prisma` CLI loads the config through the engine's loader, which handed the `orm` section over as written; the ORM's command wrapper then resolved paths itself, and the only directory it could see was the working directory. The same defect existed a second time in `projectConfigPathFor`, which rebuilt `<cwd>/prisma.config.ts` to find the project's `package.json` and, from a parent directory, read the wrong manifest. ## What changes - **`@internal/config-loader`** declares `ormConfigSchema` and `ormConfigSection` (`defineConfigSection({ name: 'orm', schema })`). It is the lowest package that can depend on the engine; `@internal/cli` and `@internal/cli-telemetry` consume the section from it. Path defaults are thunks, which arktype evaluates when the default is applied, so they resolve against the config file like authored values. - **Descriptors are declared references.** A control descriptor is a runtime object the config file constructs: `create` closes over module state, and its codec tables, contract serializer and migration hooks rely on their prototypes and on `this`. The schema declares each descriptor, and `db.connection`, with the engine's `reference(schema)` (prisma/prisma-cli#284), so the command receives the object the config file built. The schema checks only a descriptor's identifying fields: `kind`, `id`, `familyId`, `version`, `create`, and `targetId` or `emission`. Every value not declared a reference is copied before paths are resolved and defaults applied. Cross-descriptor rules (`familyId` and `targetId` agreement, the removed `extensionPacks` key) are one function, which the schema's `narrow` and the loader both call. - **A codec without params has no `paramsSchema`.** A codec that took no params used to declare `paramsSchema = voidParamsSchema`, a shared schema accepting only `undefined`, and `isParameterized` asked whether a descriptor's schema was that exact object. A copied descriptor carries a copy of that schema, so every codec on it reported itself parameterized, which is how `db init` failed with `Invalid typeParams for codec 'pg/text@1'`. `paramsSchema` is now `StandardSchemaV1<P> | undefined`, a codec without params sets it to `undefined`, and `isParameterized` is `paramsSchema !== undefined`, which no copy can change. Type-param validation still rejects `typeParams` for such a codec with `RUNTIME.TYPE_PARAMS_INVALID`. `voidParamsSchema` is removed; [`upgrade-instructions/pending/codec-without-params-schema/extension/`](https://github.com/prisma/orm/blob/feat/orm-config-schema/upgrade-instructions/pending/codec-without-params-schema/extension/instructions.md) tells extension authors how to follow. - **The ORM's bin** hands the engine each evaluated file with its sections as written (`loadConfigFiles`); the engine validates the merged section with that provenance before a command runs. `loadConfig` runs the same schema for the language server and the vite plugin, wrapping each field diagnostic as `CONFIG.VALIDATION_FAILED` with the subsection it concerns, so `requireConfigSections` keeps working. - **Commands** read absolute paths and `baseDir`. The command wrapper's cwd finalisation, `finalize-config.ts`, `collectConfigIssues` and its hand-written descriptor checks, and `projectConfigPathFor` are deleted. The migration path helpers take only the config. Control API operations that located the project through `configPath` take `projectDir`; `resolveMigrationPaths` takes the config. - **`@prisma/cli-engine` moves to 0.6.1** (0.6.0 plus prisma/prisma-cli#280 and #284: a schema declares the values it keeps as references) in `@internal/cli`, `@internal/config-loader`, `@prisma/orm-toolchain`'s peer, the four extension packages, and the integration test package. The `defineConfig` → `definePrismaConfig` rename the bump requires landed separately in prisma#30129. Examples and fixture apps consume published packages and keep their pins. - **Diagnostics under the unified CLI change code.** A malformed `orm` field is now reported by the engine as `CLI.CONFIG_FIELD_INVALID` (one per field, `meta.section: 'orm'`, `meta.field` the dotted path, `where.path` the config file that declared it) under `CLI.CONFIG_SECTION_INVALID`. `CONFIG.VALIDATION_FAILED` remains what the ORM's own loader raises for the language server and the vite plugin. The error reference records the split; the two integration files that asserted the old code are updated. - **Docs**: `config-validation-and-normalization.mdc` now describes the schema as the single home of structural rules, `loadConfigFiles`/`loadConfig` as evaluation plus diagnostics, and path resolution as the schema's job; the CLI Style Guide says relative paths in the config file resolve against the file that wrote them, with `--output-path` the one path relative to cwd; the loader README follows. The arktype rule now says to read the arktype docs before building validation machinery and never to read arktype's compiled node tree, and `docs/reference/arktype-usage.md` records what a transformation does to its input: any pipe or default makes arktype clone the whole input, and the default clone rebuilds plain objects and class instances. The codec authoring guide, the two codec ADRs and the package READMEs declare codecs without params with `paramsSchema = undefined`. ## Tests - `framework-components/test/materialize-codec.test.ts`: a descriptor copied the way arktype's default clone copies it keeps `isParameterized` for codecs with and without params (this test fails before the change), and a codec without params rejects `typeParams`. - `config-loader/test/orm-section.test.ts`: the schema accepts a valid config, supplies the migrations dir and default contract output, records `baseDir`, resolves inputs, output and migrations dir against the config file, leaves absolute paths alone, keeps a descriptor's class instances and functions, and the source's `load`, as the file built them (closures, prototypes and `this` survive), reports missing descriptors and descriptor field problems, family and target mismatches on target, adapter, driver and extensions, the removed `extensionPacks` key, contract, migrations and formatter problems, keeps fields the schema does not name on descriptors and on the contract source, and never throws on hostile input. `load.test.ts` still passes unchanged apart from the finalise module going away. - `@internal/cli`: `contract emit` and `migration plan` reached with `--config sub/prisma.config.ts` from the parent read and write under `sub/`, the plan test exercising the manifest walk from `baseDir`; the bin loader hands the engine the requested file with paths as written; ORM command tests seed the engine with a `prisma.config.ts` in the run directory through one shared helper so the engine validates the seed as it would a real file. Verified locally against a build of prisma/prisma-cli#280 overlaid on the installed engine: | Package | Result | | --- | --- | | `@internal/config` | 5 tests | | `@internal/config-loader` | 53 tests | | `@internal/cli` | 116 files, 1484 tests | | `@internal/cli-telemetry` (incl. the real-Postgres e2e) | 113 tests | | `@internal/vite-plugin-contract-emit` | 31 tests | | extensions (paradedb, pgvector, supabase, postgis) | 390 tests | | integration | 788 files, 4224 tests | | all package suites after the codec change | 83 tasks; the first run's 7 failures (tests that expected every codec to have a schema, and a bundled comment naming an internal package) fixed and rerun green | | repo | build, typecheck, lint, `lint:deps`, `lint:casts`, rules lints, `fixtures:check`, upgrade coverage pass | CI on this PR is red until `@prisma/cli-engine@0.6.1` is published and the pin here moves to it; the earlier red run (270 integration failures) was arktype's default clone rebuilding descriptors, which 0.6.1 fixes. Verified locally with a 0.6.1 build: `config-loader` (53), the CLI package (1484), and the config-related integration files (200) pass. 🤖 Generated with [Claude Code](https://claude.com/claude-code) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Configuration diagnostics now identify the affected field, section, and config file. * Relative paths in config files—including extended configs—resolve from the file that declares them. Command-line output paths remain relative to the working directory. * Config loading retains details about each file in an extended configuration chain. * **Bug Fixes** * Malformed configuration sections receive more specific diagnostics, while commands can proceed when errors affect sections they do not read. * **Breaking Changes** * Legacy configuration-validation exports and config-path operation options are no longer available. * `voidParamsSchema` is no longer exported. Codecs without parameters should set `paramsSchema` to `undefined`; non-empty type parameters are rejected, while empty parameters are accepted. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Signed-off-by: willbot <w.a.madden+machine@gmail.com> Signed-off-by: Will Madden <madden@prisma.io> Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
At a glance
A command family declares its config section once, marking the fields that are paths:
The engine derives everything else from that declaration. Given this project and this invocation:
the handler receives:
The decision
A relative path in a config file is relative to that file. Only the family knows which of its fields are paths; only the engine knows which file wrote each value, because the chain merge from #233 records that provenance per top-level key. The schema declaration puts the first where the second can use it. No family writes validation, resolution, or path-anchoring code, and every product that mounts commands declares its section the same way. ADR 0005 records the decision and the four designs it replaced.
What changes
configSchema: arktype'stypein a scope with one extra keyword,path. Apathvalue is resolved during validation against the directory of the file that declared its top-level key; an absolute value passes through. Optional keys, defaults, unions, andnarrowfor cross-field rules are arktype's as is.defineConfigSection({ name, schema })derives the validator.{ name, validate }remains for a section a schema cannot express; that validator resolves its own paths throughresolveSectionPath.CLI.CONFIG_FIELD_INVALIDwithmeta.section,meta.field, andwhere.pathnaming the file that declared the field, so on a chain the user is told which file to fix. Registered in the error reference.baseDir: a plain-object section comes back frozen with the nearest declaring file's directory, typed on the validated value, for commands that need the project's location. The key is reserved; a section that writes it is refused.pathdefault is declared as a thunk,['path', '=', () => './migrations']: arktype evaluates and morphs a thunk when the default is applied, so it resolves against the nearest file like an authored value, while a literal default is morphed once at schema definition and would be stored unresolved, so a relative literal is refused at definition with that guidance.{}: all-optional schemas accept it, a required field is reported by name.2.2.3and moves to 0.6.0, since 0.5.0 reached the registry after prisma.config.ts is discovered up to the repo root and merged, most local value winning #233. The recorded engine-pin exceptions from prisma.config.ts is discovered up to the repo root and merged, most local value winning #233 move to 0.6.0 with it and expire when the families release peering it.turbo.json: theconformancetask now also depends onprisma#build. Its import-purity sweep readspackages/prisma/dist, but nothing in the shell depends on that package, so the sweep could run before the build finished and report that nothing was swept, which is what failed this PR's first CI run.Tests
tests/config-schema.test.ts: a path resolves against its declaring file andbaseDiris recorded and typed; a nested path resolves against the file that declared its top-level key; a thunk path default resolves against the nearest file and a relative literal default is refused at definition; a morph other thanpathruns exactly once;baseDirwritten by a file is refused; a non-plain value such as aDatekeeps its identity; a nested validation started by a morph does not lose the outer context; an absent section is the empty section; wrong types produce diagnostics naming field and file; a missing required field is named; a frozen value validates; hostile input never throws; and end to end through the harness, a two-file discovery chain resolves the parent's./migrationsunder the parent and the child's./distunder the child.pnpm --filter @prisma/cli-engine test: 39 files, 945 tests. Shell package tests, script tests, repository typecheck, lint, and the error-reference completeness check pass.Consumer side
A follow-up in prisma/orm declares the
ormsection withconfigSchema, deletes its hand-written validation and path resolution, and stops anchoring its migration path helpers on cwd. Under ADR 0004's exact peers, the ORM release that adopts the schema moves its engine peer to the engine that ships this; the engine ships first.🤖 Generated with Claude Code