Add logic to export raster files (as COG).

Raster data is not stored in the PostGIS database.  Instead, the mtime
of the target directory is used to determine whether the COG is up to
date.

Add a new flag --metadata-compress for JSON metadata compression (which
also applies to MVT metadata), and --rasterdir for the target raster
directory.

1 files changed, 3 insertions, 2 deletions

diff --git a/export_mvt.py b/export_mvt.py
index 8d90129..e50620f 100644
--- a/export_mvt.py
+++ b/export_mvt.py
@@ -450,7 +450,8 @@ def exportMVT(ds : gdal.Dataset,
               drvname : str = 'MVT',
               default_options : dict[str,Any]|None = None,
               tile_extension : str = '.pbf',
-              compress : bool = False) -> None:
+              compress : bool = False,
+              compress_metadata : bool = False) -> None:
     """Export some layers to MVT."""
     drv = gdal.GetDriverByName(drvname)
     if drv is None:
@@ -588,7 +589,7 @@ def exportMVT(ds : gdal.Dataset,
                                              last_modified=last_modified,
                                              last_updated=creation_time // 1000000),
                        dir_fd=dir_fd,
-                       compress=compress)
+                       compress=compress_metadata)
 
         try:
             # atomically exchange paths