Fixed #28257 -- Confirmed support for GDAL 2.2

Additionally, a test has been updated to account for small SRS WKT differences.
Thanks Tim Graham for writing the doc part.

django/contrib/gis/gdal/libgdal.py

@@ -21,10 +21,10 @@ if lib_path:
     lib_names = None
 elif os.name == 'nt':
     # Windows NT shared libraries
-    lib_names = ['gdal201', 'gdal20', 'gdal111', 'gdal110', 'gdal19']
+    lib_names = ['gdal202', 'gdal201', 'gdal20', 'gdal111', 'gdal110', 'gdal19']
 elif os.name == 'posix':
     # *NIX library names.
-    lib_names = ['gdal', 'GDAL', 'gdal2.1.0', 'gdal2.0.0', 'gdal1.11.0', 'gdal1.10.0', 'gdal1.9.0']
+    lib_names = ['gdal', 'GDAL', 'gdal2.2.0', 'gdal2.1.0', 'gdal2.0.0', 'gdal1.11.0', 'gdal1.10.0', 'gdal1.9.0']
 else:
     raise ImproperlyConfigured('GDAL is unsupported on OS "%s".' % os.name)
 

docs/ref/contrib/gis/install/geolibs.txt

@@ -10,7 +10,7 @@ Program                   Description                           Required
 ========================  ====================================  ================================  ===================================
 :doc:`GEOS <../geos>`     Geometry Engine Open Source           Yes                               3.5, 3.4, 3.3
 `PROJ.4`_                 Cartographic Projections library      Yes (PostgreSQL and SQLite only)  4.9, 4.8, 4.7, 4.6, 4.5, 4.4
-:doc:`GDAL <../gdal>`     Geospatial Data Abstraction Library   Yes                               2.1, 2.0, 1.11, 1.10, 1.9
+:doc:`GDAL <../gdal>`     Geospatial Data Abstraction Library   Yes                               2.2, 2.1, 2.0, 1.11, 1.10, 1.9
 :doc:`GeoIP <../geoip2>`  IP-based geolocation library          No                                2
 `PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             2.3, 2.2, 2.1
 `SpatiaLite`__            Spatial extensions for SQLite         Yes (SQLite only)                 4.3, 4.2, 4.1, 4.0
@@ -34,6 +34,7 @@ totally fine with GeoDjango. Your mileage may vary.
     GDAL 1.11.0 2014-04-25
     GDAL 2.0.0 2015-06
     GDAL 2.1.0 2016-04
+    GDAL 2.2.0 2017-05
     PostGIS 2.1.0 2013-08-17
     PostGIS 2.2.0 2015-10-17
     PostGIS 2.3.0 2016-09-26

tests/gis_tests/gdal_tests/test_ds.py

@@ -1,4 +1,5 @@
 import os
+import re
 import unittest
 
 from django.contrib.gis.gdal import (
@@ -9,17 +10,26 @@ from django.contrib.gis.gdal.field import OFTInteger, OFTReal, OFTString
 
 from ..test_data import TEST_DATA, TestDS, get_ds_file
 
+wgs_84_wkt = (
+    'GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_1984",'
+    '6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",'
+    '0.017453292519943295]]'
+)
+# Using a regex because of small differences depending on GDAL versions.
+# AUTHORITY part has been added in GDAL 2.2.
+wgs_84_wkt_regex = (
+    r'^GEOGCS\["GCS_WGS_1984",DATUM\["WGS_1984",SPHEROID\["WGS_(19)?84",'
+    r'6378137,298.257223563\]\],PRIMEM\["Greenwich",0\],UNIT\["Degree",'
+    r'0.017453292519943295\](,AUTHORITY\["EPSG","4326"\])?\]$'
+)
+
 # List of acceptable data sources.
 ds_list = (
     TestDS(
         'test_point', nfeat=5, nfld=3, geom='POINT', gtype=1, driver='ESRI Shapefile',
         fields={'dbl': OFTReal, 'int': OFTInteger, 'str': OFTString},
         extent=(-1.35011, 0.166623, -0.524093, 0.824508),  # Got extent from QGIS
-        srs_wkt=(
-            'GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_1984",'
-            '6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",'
-            '0.017453292519943295]]'
-        ),
+        srs_wkt=wgs_84_wkt,
         field_values={
             'dbl': [float(i) for i in range(1, 6)],
             'int': list(range(1, 6)),
@@ -48,11 +58,7 @@ ds_list = (
         driver='ESRI Shapefile',
         fields={'float': OFTReal, 'int': OFTInteger, 'str': OFTString},
         extent=(-1.01513, -0.558245, 0.161876, 0.839637),  # Got extent from QGIS
-        srs_wkt=(
-            'GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_1984",'
-            '6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",'
-            '0.017453292519943295]]'
-        ),
+        srs_wkt=wgs_84_wkt,
     )
 )
 
@@ -210,11 +216,7 @@ class DataSourceTest(unittest.TestCase):
 
                     # Making sure the SpatialReference is as expected.
                     if hasattr(source, 'srs_wkt'):
-                        self.assertEqual(
-                            source.srs_wkt,
-                            # Depending on lib versions, WGS_84 might be WGS_1984
-                            g.srs.wkt.replace('SPHEROID["WGS_84"', 'SPHEROID["WGS_1984"')
-                        )
+                        self.assertIsNotNone(re.match(wgs_84_wkt_regex, g.srs.wkt))
 
     def test06_spatial_filter(self):
         "Testing the Layer.spatial_filter property."