Merged in master (pull request #26)

fix(init): add custom context manager for pkg resources

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = httpaste-victorykit
-version = 1.0.7-alpha
+version = 1.0.8-alpha
 author = Tiara Rodney
 author_email = t.rodney@victoryk.it
 description = a versatile HTTP pastebin

src/httpaste/__init__.py

@@ -144,14 +144,13 @@ from configparser import ConfigParser
 from ast import literal_eval
 from io import StringIO
 from os import environ
-from importlib.resources import path as pkg_resource_path
 
 from connexion import FlaskApp
 from connexion.resolver import RestyResolver
 
 from httpaste.model import Backend
 from httpaste.backend import get_backend_map
-from httpaste.helper.common import generate_random_string
+from httpaste.helper.common import (generate_random_string, tmp_pkg_resource_text_path)
 from httpaste.helper.http import (
     BadRequestError,
     ForbiddenError,
@@ -303,7 +302,8 @@ def get_flask_app(
     options = {"swagger_ui": server_config.swagger_ui}
 
     #context manager returns a pathlib.Path object
-    with pkg_resource_path('httpaste.schema', 'httpaste.openapi.json') as path:
+    with tmp_pkg_resource_text_path('httpaste.schema', 'httpaste.openapi.json') as path:
+
         application = FlaskApp(__name__, specification_dir=path.parent)
 
         application.add_api(

src/httpaste/helper/common.py

@@ -1,6 +1,11 @@
 from random import choice
 from base64 import b64decode
 from urllib.parse import urljoin
+from importlib.resources import read_text
+from tempfile import mkdtemp
+from pathlib import Path
+from contextlib import contextmanager
+
 
 class DecodeError(Exception):
     """
@@ -30,3 +35,28 @@ def decode(data: str, encoding: str) -> bytes:
 def join_url(base:str, url: str) -> str:
 
     return urljoin(base, url, True)
+
+
+@contextmanager
+def tmp_pkg_resource_text_path(package:str, resource:str) -> Path:
+    """context manager for accessing package resources from a real path
+
+        this applies to the circumstance of the package living inside of an
+        egg and therefore is unable to provide real existing paths to any
+        module that may require it.
+
+        :param package: dot seperated package name
+        :param resource: basename of resource inside package
+
+        :returns: a Path-like object
+    """
+    data = read_text(package, resource)
+    tmp_dirname = mkdtemp()
+    tmp_dirpath = Path(tmp_dirname)
+    tmp_file = tmp_dirpath.joinpath(resource)
+    tmp_file.write_text(data)
+    try:
+        yield tmp_file
+    finally:
+        tmp_file.unlink()
+        tmp_dirpath.rmdir()