add support for copying over the default config file... This is

in preparation to add support for configuring this module..

casimport/__init__.py

@@ -23,6 +23,7 @@
 # SUCH DAMAGE.
 
 import contextlib
+import filecmp
 import functools
 import glob
 import hashlib
@@ -341,8 +342,18 @@ class CASFinder(MetaPathFinder, Loader):
 			exec(data, module.__dict__)
 
 def defaultinit(casf):
-	cachedir = pathlib.Path.home() / '.casimport_cache'
-	cachedir.mkdir(exist_ok=True)
+	basedir = pathlib.Path.home() / '.casimport'
+
+	conffile = basedir / 'casimport.conf'
+	if not conffile.exists():
+		basedir.mkdir(exist_ok=True)
+		import casimport
+		with importlib.resources.path(casimport,
+		    'default.conf') as defconf:
+			shutil.copy(defconf, conffile)
+
+	cachedir = basedir / 'cache'
+	cachedir.mkdir(parents=True, exist_ok=True)
 
 	casf.register(FileDirCAS(cachedir))
 	casf.register(IPFSCAS())
@@ -458,18 +469,24 @@ class Test(unittest.TestCase):
 	def test_defaultinit(self):
 		temphome = self.tempdir / 'home'
 		temphome.mkdir()
-		cachedir = temphome / '.casimport_cache'
+		defcachedir = temphome / '.casimport' / 'cache'
 
+		# testing w/ default config
 		with tempset(os.environ, 'HOME', str(temphome)):
 			with CASFinder() as f:
 				# Setup the defaults
 				defaultinit(f)
 
+				# That the default.conf file got copied over.
+				filecmp.cmp(defcachedir.parent /
+				    'casimport.conf',
+				    pathlib.Path(__file__).parent / 'default.conf')
+
 				# that the cache got created
-				self.assertTrue(cachedir.is_dir())
+				self.assertTrue(defcachedir.is_dir())
 
 				# and that when hello.py is copied to the cache
-				shutil.copy(self.fixtures / 'hello.py', cachedir)
+				shutil.copy(self.fixtures / 'hello.py', defcachedir)
 
 				# it can be imported
 				from cas.v1_f_330884aa2febb5e19fb7194ec6a69ed11dd3d77122f1a5175ee93e73cf0161c3 import hello
@@ -525,10 +542,16 @@ class Test(unittest.TestCase):
 				    'load_mod_aliases', f.load_mod_aliases):
 					defaultinit(f)
 
+					# XXX - fix this so this is properly
+					# used.  It's using other methods to
+					# work currently
+
 					# and that hello.py is in the cache
 					shutil.copy(self.fixtures / 'hello.py',
 					    cachedir)
 
+					self.assertNotIn('randpkg', sys.modules)
+
 					# that the import is successful
 					import randpkg
 
@@ -570,6 +593,8 @@ class Test(unittest.TestCase):
 
 				# and pulled in the method
 				self.assertTrue(hasattr(randpkg, 'hello'))
+
+				del sys.modules['randpkg']
 		finally:
 			sys.path.remove(fixdir)
 

casimport/default.conf

@@ -0,0 +1,32 @@
+[casimport]
+# List of priority to search for files to import
+#
+# Each item is a name of a section which defines the properties of that
+# item.  This allows for multiple caches to be defines, such as a
+# read-only one vs a local writable one.
+
+module_prio = homecache, ipfsgw, https
+
+[homecache]
+# Default cache is in the user's home directory.
+
+type = cache
+dir = ~/.casimport/cache
+
+#size = 10MB
+
+[ipfsgw]
+# The ipfs module converts ipfs://cidvX urls into a gateway call.
+# This could be configured to be the local ipfs gateway if you run
+# one.  If the local gateway isn't running all the time, one could
+# configure a backup gateway that uses one of the common public
+# gateways: https://ipfs.github.io/public-gateway-checker/
+
+type = ipfs
+gateway = https://gateway.ipfs.io/ipfs/
+
+[https]
+# This is just to handle https requests.  Without this, they won't be
+# resolved.
+
+type = https