Update package build system to hatchling

.gitignore

@@ -52,39 +52,16 @@ nosetests.xml
 *.out
 *.app
 
-# various built ms2gt files
-ms2gt/src/fornav/fornav
-ms2gt/src/grid_convert/grid_convert
-ms2gt/src/gridsize/gridsize
-ms2gt/src/ll2cr/ll2cr
-ms2gt/src/ll2xy/ll2xy
-ms2gt/src/lle2cre/lle2cre
-ms2gt/src/mapx/trunk/cdb_edit
-ms2gt/src/mapx/trunk/cdb_list
-ms2gt/src/mapx/trunk/crtest
-ms2gt/src/mapx/trunk/gacct
-ms2gt/src/mapx/trunk/gridloc
-ms2gt/src/mapx/trunk/gtest
-ms2gt/src/mapx/trunk/irregrid
-ms2gt/src/mapx/trunk/macct
-ms2gt/src/mapx/trunk/mapenum
-ms2gt/src/mapx/trunk/mtest
-ms2gt/src/mapx/trunk/regrid
-ms2gt/src/mapx/trunk/resamp
-ms2gt/src/mapx/trunk/ungrid
-ms2gt/src/mapx/trunk/wdbtocdb
-ms2gt/src/mapx/trunk/xytest
-ms2gt/src/projection/projection
-ms2gt/src/utils/apply_mask
-ms2gt/src/utils/extract_region
-ms2gt/src/utils/insert_region
-ms2gt/src/utils/make_mask
-ms2gt/src/xy2ll/xy2ll
-
 # PyCharm configs
 .idea
 
+# Image Editing Tools
+*.xcf
+
 # Example images should not be added to the repository
 doc/source/_static/example_images
 doc/source/dev_guide/api/*.rst
 doc/source/grids_list.rst
+
+# Polar2Grid Bundles being compared against
+polar2grid-swbundle-*

pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
-requires = ["setuptools>=45"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [project]
 name = "polar2grid"
@@ -50,11 +50,15 @@ Project-URL = "https://github.com/ssec/polar2grid/"
 polar2grid = "polar2grid.__main__:p2g_main"
 geo2grid = "polar2grid.__main__:g2g_main"
 
-[tool.setuptools]
-include-package-data = true
+[tool.hatch.build.targets.sdist]
+only-include = [
+    "polar2grid",
+    "NEWS.rst",
+    "NEWS_GEO2GRID.rst",
+]
 
-[tool.setuptools.packages]
-find = {}
+[tool.hatch.build.targets.wheel]
+packages = ["polar2grid"]
 
 [tool.pytest.ini_options]
 minversion = 6.0