add support for stats files

re: #42

gridded_glm/libexec/gridded_glm/_minute_gridder.py

@@ -54,6 +54,7 @@ from lmatools.grid.make_grids import dlonlat_at_grid_center, grid_h5flashfiles
 from glmtools.grid.make_grids import grid_GLM_flashes
 from glmtools.io.glm import parse_glm_filename
 from lmatools.grid.fixed import get_GOESR_grid, get_GOESR_coordsys
+from statistics import create_statistics_file
 
 import logging
 log = logging.getLogger(__name__)
@@ -387,18 +388,29 @@ def grid_minute(minute, args):
                               check_categories=False, # check_categories is there because of that issue I mentioned where DQF is all valid all the time so there is no way to detect empty tiles unless we ignore the "category" products
                               environment_prefix=args.system_environment_prefix_tiles,
                               compress=True)
+            
+            create_statistics_file(tile_files=glob(f"{tempdir_path}/*_GLM-L2-GLM*-M?_G??_T??_*.nc"), minute=minute + timedelta(minutes=1))
 
     # pick up output files from the tempdir
     # output looks like: CG_GLM-L2-GLMC-M3_G17_T03_20200925160040.nc
     log.debug("files in {}".format(tempdir_path))
     log.debug(os.listdir(tempdir_path))
     log.debug("moving output to {}".format(args.output_dir))
+
     tiled_path = os.path.join(tempdir_path, '{}_GLM-L2-GLM*-M?_G??_T??_*.nc'.format(args.system_environment_prefix_tiles))
     tiled_files = glob(tiled_path)
     for f in tiled_files:
         add_gglm_attrs(f, glm_filenames)
         shutil.move(f, os.path.join(args.output_dir, os.path.basename(f)))
+
+    stats_path = os.path.join(tempdir_path, '{}_GLM-L2-GLM*-M?_G??_statistics_*.nc'.format(args.system_environment_prefix_tiles))
+    stats_files = glob(stats_path)
+    for f in stats_files:
+        add_gglm_attrs(f, glm_filenames)
+        shutil.move(f, os.path.join(args.output_dir, os.path.basename(f)))
+
     for f in gridded_files:
+        # we add gglm attributes above
         shutil.move(f, os.path.join(args.output_dir, os.path.basename(f)))
 
     # tempdir cleans itself up via atexit, above