making stashcp a packge not a module and changing the order for looking the caches.json file (software-3799)

Author: Diego Davila

setup.py

@@ -42,7 +42,7 @@
     # For a discussion on single-sourcing the version across setup.py and the
     # project code, see
     # https://packaging.python.org/en/latest/single_source_version.html
-    version='5.4.1',  # Required
+    version='5.5.0',  # Required
 
     # This is a one-line description or tagline of what your project does. This
     # corresponds to the "Summary" metadata field:
@@ -121,7 +121,8 @@
     # the `py_modules` argument instead as follows, which will expect a file
     # called `my_module.py` to exist:
     #
-    py_modules=["stashcp"],
+    #py_modules=["stashcp"],
+    packages=["stashcp"],
 
     #packages=find_packages(exclude=['contrib', 'docs', 'tests']),  # Required
 
@@ -151,6 +152,7 @@
     #
     # If using Python 2.6 or earlier, then these have to be included in
     # MANIFEST.in as well.
+    package_data={'stashcp': ['caches.json'],},
     #package_data={  # Optional
     #    '': ['bin/caches.json'],
     #},
@@ -160,7 +162,7 @@
     # http://docs.python.org/3.4/distutils/setupscript.html#installing-additional-files
     #
     # In this case, 'data_file' will be installed into '<sys.prefix>/my_data'
-    data_files=[('', ['caches.json'])],  # Optional
+    data_files=[('share/stashcache/', ['stashcp/caches.json'])],
 
     # To provide executable scripts, use entry points in preference to the
     # "scripts" keyword. Entry points provide cross-platform support and allow

stashcp.py stashcp/__init__.pystashcp.py renamed to stashcp/__init__.py

@@ -15,16 +15,16 @@
 from urlparse import urlparse
 
 try:
-    from pkg_resources import resource_string
+    from pkg_resources import resource_filename
 except ImportError as e:
-    resource_string = None
+    resource_filename = None
 
 
 import logging
 from urlparse import urlparse
 
 # Version information for user-agent
-VERSION = "5.4.1"
+VERSION = "5.5.0"
 
 main_redirector = "root://redirector.osgstorage.org"
 stash_origin = "root://stash.osgconnect.net"
@@ -554,12 +554,12 @@ def get_best_stashcache():
         cache_files = [ caches_json_location ]
     else:
         prefix = os.environ.get("OSG_LOCATION", "/")
-        cache_files = [os.path.join(os.path.dirname(os.path.realpath(__file__)), "caches.json"),
-                       os.path.join(prefix, "etc/stashcache/caches.json"),
-                       os.path.join(prefix, "usr/share/stashcache/caches.json")]
-        if resource_string:
+        cache_files = [os.path.join(prefix, "etc/stashcache/caches.json"),
+                       os.path.join(prefix, "usr/share/stashcache/caches.json"),
+                       os.path.join(prefix, "usr/local/share/stashcache/caches.json")]
+        if resource_filename:
             try:
-                cache_files.insert(0, resource_string(__name__, 'caches.json'))
+		cache_files.append(resource_filename(__name__, 'caches.json'))
             except IOError as ioe:
                 logging.debug("Unable to retrieve caches.json using resource string, trying other locations")