cube package

.changeset/clean-owls-think.md

@@ -0,0 +1,5 @@
+---
+"barnard59-core": minor
+---
+
+Add support for "late errors" where step authors can call `context.error()` to avoid immediately breaking the pipeline

.changeset/five-cups-wash.md

@@ -0,0 +1,5 @@
+---
+"barnard59-sparql": patch
+---
+
+fix code link in manifest

.changeset/silver-humans-joke.md

@@ -0,0 +1,22 @@
+---
+"barnard59-cube": major
+"barnard59-rdf": major
+---
+
+Move cube operations from package `barnard59-rdf` to the new package `barnard59-cube`.
+
+
+```diff
+<#toObservation> a p:Step;
+  code:implementedBy [ a code:EcmaScriptModule;
+    - code:link <node:barnard59-rdf/cube.js#toObservation>
+    + code:link <node:barnard59-cube/cube.js#toObservation>
+  ].
+
+<#buildCubeShape> a p:Step;
+  code:implementedBy [ a code:EcmaScriptModule;
+    - code:link <node:barnard59-rdf/cube.js#buildCubeShape>
+    + code:link <node:barnard59-code/cube.js#buildCubeShape>
+  ].
+
+```

.changeset/soft-peaches-brake.md

@@ -0,0 +1,5 @@
+---
+"barnard59-env": minor
+---
+
+Added `cube` and `meta` namespaces

.changeset/strong-lions-wait.md

@@ -0,0 +1,5 @@
+---
+"barnard59": patch
+---
+
+include peer dependencies in manifest discovery

.github/workflows/ci.yaml

@@ -12,6 +12,7 @@ jobs:
         package:
           - base
           - core
+          - cube
           - csvw
           - formats
           - ftp

codecov.yml

@@ -6,6 +6,7 @@ flag_management:
     - name: barnard59-base
     - name: barnard59-core
     - name: barnard59-csvw
+    - name: barnard59-cube
     - name: barnard59-formats
     - name: barnard59-ftp
     - name: barnard59-graph-store

packages/cli/lib/discoverManifests.js

@@ -10,6 +10,7 @@ const require = module.createRequire(import.meta.url)
 export default async function * () {
   const packages = findPlugins({
     includeDev: true,
+    includePeer: true,
     filter({ pkg }) {
       return packagePattern.test(pkg.name) && hasManifest(pkg.name)
     },
@@ -19,7 +20,7 @@ export default async function * () {
   if (hasManifest(dir)) {
     const { name, version } = require(`${dir}/package.json`)
     yield {
-      name,
+      name: packagePattern.test(name) ? name.match(packagePattern)[1] : name,
       manifest: rdf.clownface({ dataset: await rdf.dataset().import(rdf.fromFile(`${dir}/manifest.ttl`)) }),
       version,
     }

packages/cli/lib/pipeline.js

@@ -34,7 +34,7 @@ export const desugar = async (dataset, { logger, knownOperations } = {}) => {
       const [quad] = step.dataset.match(step.term)
       const knownStep = knownOperations.get(quad?.predicate)
       if (!knownStep) {
-        logger?.warn(`Operation <${quad?.predicate.value}> not found in known manifests. Have you added the right \`branard59-*\` package as dependency?`)
+        logger?.warn(`Operation <${quad?.predicate.value}> not found in known manifests. Have you added the right \`barnard59-*\` package as dependency?`)
         continue
       }
 

packages/core/lib/factory/pipeline.js

@@ -6,8 +6,8 @@ import { VariableMap } from '../VariableMap.js'
 import createStep from './step.js'
 import createVariables from './variables.js'
 
-async function createPipelineContext(ptr, { basePath, context, logger, variables }) {
-  return { ...context, basePath, logger, variables }
+async function createPipelineContext(ptr, { basePath, context, logger, variables, error }) {
+  return { error, ...context, basePath, logger, variables }
 }
 
 async function createPipelineVariables(ptr, { basePath, context, loaderRegistry, logger, variables }) {
@@ -35,8 +35,15 @@ function createPipeline(ptr, {
   ptr = context.env.clownface({ dataset: ptr.dataset, term: ptr.term })
 
   const onInit = async pipeline => {
+    function error(err) {
+      logger.error(err)
+      if (!pipeline.error) {
+        pipeline.error = err
+      }
+    }
+
     variables = await createPipelineVariables(ptr, { basePath, context, loaderRegistry, logger, variables })
-    context = await createPipelineContext(ptr, { basePath, context, logger, variables })
+    context = await createPipelineContext(ptr, { basePath, context, logger, variables, error })
 
     logVariables(ptr, context, variables)
 

packages/core/lib/run.js

@@ -20,6 +20,9 @@ async function run(pipeline, { end = false, resume = false } = {}) {
         pipeline.logger.on('finish', () => resolve())
       })
 
+      if (pipeline.error) {
+        throw pipeline.error
+      }
       pipeline.logger.end()
       await p
     } catch (err) {

packages/cube/README.md

@@ -0,0 +1,85 @@
+# barnard59-cube
+
+This package provides operations and commands for RDF cubes in Barnard59 Linked Data pipelines.
+The `manifest.ttl` file contains a full list of all operations included in this package. 
+
+## Operations
+
+### `cube/buildCubeShape`
+
+TBD
+
+### `cube/toObservation`
+
+TBD
+
+
+## Commands
+
+## Cube validation
+
+The following pipelines retrieve and validate cube observations and their constraints.
+
+### fetch constraint
+
+Pipeline `fetch-constraint` queries a given SPARQL endpoint to retrieve 
+a [concise bounded description](https://docs.stardog.com/query-stardog/#describe-queries) of the `cube:Constraint` part of a given cube.
+
+```bash
+npx barnard59 cube fetch-constraint \
+  --cube https://agriculture.ld.admin.ch/agroscope/PRIFm8t15/2 \
+  --endpoint https://int.lindas.admin.ch/query
+```
+
+
+This pipeline is useful mainly for cubes published with [cube creator](https://github.com/zazuko/cube-creator) (if the cube definition is manually crafted, likely it's already available as a local file).
+
+
+### check constraint
+
+Pipeline `check-constraint` validates the input constraint against the shapes provided with the `profile` variable (the default profile is https://cube.link/latest/shape/standalone-constraint-constraint).
+
+The pipeline reads the constraint from `stdin`, allowing input from a local file (as in the following example) as well as from the output of the `fetch-constraint` pipeline (in most cases it's useful to have the constraint in a local file because it's needed also for the `check-observations` pipeline).
+
+```bash
+cat myConstraint.ttl \
+| npx barnard59 cube check-constraint \
+    --profile https://cube.link/v0.1.0/shape/standalone-constraint-constraint
+```
+SHACL reports for violations are written to `stdout`.
+
+
+### fetch observations
+
+Pipeline `fetch-observations` queries a given SPARQL endpoint to retrieve the observations of a given cube.
+
+```bash
+npx barnard59 cube fetch-observations \
+    --cube https://agriculture.ld.admin.ch/agroscope/PRIFm8t15/2 \
+    --endpoint https://int.lindas.admin.ch/query
+```
+Results are written to `stdout`.
+
+### check observations
+
+Pipeline `check-observations` validates the input observations against the shapes provided with the `constraint` variable.
+
+The pipeline reads the observations from `stdin`, allowing input from a local file (as in the following example) as well as from the output of the `fetch-observations` pipeline.
+
+```bash
+cat myObservations.ttl \
+| npx barnard59 cube check-observations \
+    --constraint myConstraint.ttl
+```
+
+To enable validation, the pipeline adds to the constraint a `sh:targetClass` property with value `cube:Observation`, requiring that each observation has an explicit `rdf:type`.
+
+To leverage streaming, input is split and validated in little batches of adjustable size (the default is 50 and likely it's appropriate in most cases). This allows the validation of very big cubes because observations are not loaded in memory all at once. To ensure triples for the same observation are adjacent (hence processed in the same batch), the input is sorted by subject (and in case the input is large the sorting step relies on temporary local files).
+
+SHACL reports for violations are written to `stdout`.
+
+To limit the output size, there is also a `maxViolations` option to stop validation when the given number of violations is reached.
+
+### Known issues
+
+Command `check-constraint` may fail if there are `sh:in` constraints with too many values.