Load a Pinned Data-Provenance Record — load_provenance • rmoriebricklayer

Reads a data_provenance.json file describing a project's pinned data source: the CKAN endpoint, resource name pattern, expected SHA256, Wayback snapshot, schema, and synthetic-data recipe.

Usage

load_provenance(path)

Arguments

path: Path to the provenance JSON file.

Value

The parsed provenance as a nested list, read with the package's own JSON codec ( bricklayer_json_from_json(), unsimplified), or NULL if the file does not exist.

Examples

prov_file <- tempfile(fileext = ".json")
writeLines('{"dataset": {"title": "demo"}, "sha256": "abc"}', prov_file)
prov <- load_provenance(prov_file)
prov$dataset$title
#> [1] "demo"
load_provenance(file.path(tempdir(), "no-such-file.json"))  # NULL
#> NULL