Generator for AppStream metadata

 AppStream is a cross-distribution effort for creating and sharing
 metadata of software components available in the package repositories
 of a distribution.
 It provides specifications for an unified software component metadata format
 and provides tools to read, write and validate the metadata.
 .
 This package contains a tool to generate distribution metadata from package
 repositories.
 It will extract icons, download screenshots, validate and transform the
 metadata and return XML or YAML files that can be read by AppStream clients,
 such as software centers.
 The `appstream-generator` will also generate issue reports as JSON documents
 and HTML pages.