elharo opened a new issue, #188: URL: https://github.com/apache/maven-doap-plugin/issues/188
### Affected version HEAD ### Bug description Per Gemini: To discover, aggregate, or publish RDF metadata describing open-source software projects (using DOAP—Description of a Project—or similar ontologies), the current ecosystem relies on decentralized hosting and modern web registries rather than centralized DOAP-specific directories. Here is how you can publish or locate this metadata today: ### 1. Publishing Open-Source Metadata Instead of registering a project in a standalone directory, publish the DOAP file directly within the project's ecosystem and rely on standard Web of Data mechanisms: * **Host in the Root Repository:** Store the project's `doap.rdf` or `doap.ttl` directly in the root of its public repository (e.g., GitHub, GitLab, or Codeberg). * **Embed Structured Data (JSON-LD):** Embed project metadata using JSON-LD with the [schema.org `SoftwareApplication](https://schema.org/SoftwareApplication?utm_source=gemini)` or [`[SoftwareSourceCode](https://schema.org/SoftwareSourceCode?utm_source=gemini)`](https://schema.org/SoftwareSourceCode?utm_source=gemini) vocabularies in the HTML head of the project's documentation or landing page: ```html <script type="application/ld+json"> { "@context": "https://schema.org";, "@type": "SoftwareSourceCode", "name": "ProjectName", "codeRepository": "https://github.com/example/project";, "programmingLanguage": "Java", "license": "https://www.apache.org/licenses/LICENSE-2.0"; } </script> ``` Search engine crawlers automatically index schema.org metadata. ### 2. Discovering and Querying Open-Source Metadata To retrieve structured metadata across open-source software without defunct directories: * **Wikidata SPARQL Endpoint:** Wikidata maintains structured metadata on thousands of open-source software projects, including properties like homepages, repository locations, software licenses, programming languages, and developers. * Endpoint: `[https://query.wikidata.org/](https://query.wikidata.org/)` * Example SPARQL query for open-source Java projects on Wikidata: ```sparql SELECT ?item ?itemLabel ?repo WHERE { ?item wdt:P31 wd:Q7397; # instance of software wdt:P275 ?license; # has a license wdt:P277 wd:Q251; # programming language: Java wdt:P1324 ?repo. # source code repository SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } } LIMIT 100 ``` * **Package Manager Registries & APIs:** Ecosystem-specific package managers expose structured metadata natively via REST APIs (e.g., Maven Central Search API, PyPI JSON API, or npm Registry API). * **[Software Heritage](https://www.softwareheritage.org/?utm_source=gemini) Graph:** The [Software Heritage](https://www.softwareheritage.org/?utm_source=gemini) project archives public source code repositories along with their metadata, accessible via their Web API and public datasets. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
