Metadata/review

[maawoo]

• Correctly set meta['prod']['RTCAlgorithm'] and meta['prod']['geoCorrAccuracy_rRMSE'] depending on condition, else they will be set to None (5932675, 7ae00eb)
• Remove meta['prod']['file...'] entries. These are now handled by the xml and stac modules. (b6b27d1)
• New entry for DEM Ground Sample Distance (GSD): meta['prod']['demGSD'] (4282d31)
  • XML: Always included as <s1-nrb:ProcessingInformation>/<s1-nrb:DEMGroundSamplingDistance> (4282d31)
  • STAC: Only included for asset with role 'digital-elevation-model' as RasterBand.spatial_resolution (b1f831c)
• Rename variable tifs to assets in metadata parsing functions + general improvements in handling assets (ea4ba54)
• XML: Include VRT assets (ea4ba54)
• STAC: Use pystac.MediaType.XML for VRT assets (d66e134)
• STAC: Change order of properties (1f4caad)
• STAC: Require pystac >= 1.8.0 and implement new extensions:
  • pystac.extensions.mgrs.MgrsExtension (4c9219c)
  • pystac.extensions.file.FileExtension (c874e88)
  • pystac.extensions.raster.RasterExtension (42f217f)
  • pystac.extensions.classification.ClassificationExtension (bb63fdd)
• STAC: New helper functions that bring some needed order to the generation of asset metadata in stac.product_json
  • _asset_get_key_title (09f6851)
  • _asset_handle_raster_ext (bb63fdd)
• Rename ITEM_MAP and SAMPLE_MAP in metadata.mapping (4fabc8f, af0e948)
• Rename etree_from_sid and extract_pslr_islr in metadata.extract (db0cc98)
• Reorganize modules (e.g., main function at the top):
  • metadata.extract (8d36590)
  • metadata.xml (173c35a)
  • metadata.stac (d3ab71d)
• metadata.extract: upstream fixes of invalid STAC fields (6fd639c)
• STAC: fix title of noise-power assets (b82c475)
  • closes STAC Item-Assets: Differentiate between Noise Power assets in asset title #118
• STAC/XML: fix created-datetime of assets (2886102, 640c40b)
  • closes Invalid dates in STAC metadata #119
• STAC/XML: Exclude fields if None in METADATA-section of config file (cf87893)
• Some other minor clean-ups, improvements and bug fixes

[maawoo]

This PR has now grown enough and is ready to be merged soon in my opinion. @johntruckenbrodt how do you want to proceed and to which degree do you want (or rather have time) to review?

I have run some tests today and checked product and source metadata (for cases of 1 and 2 source files) and everything works smoothly on my end. I've also validated the STAC metadata as suggested by @jonas-eberle in #119. Excluding the card4l schema (not mature enough) and errors due to placeholder null hrefs, I've not encountered any issues.

[johntruckenbrodt]

Awesome! Thanks a lot @maawoo. This is quite a large and important piece of work. I won't go through all of it, you are much deeper into metadata than I am.