From 51f1d330a4de8551063bab5aba5080f93842155c Mon Sep 17 00:00:00 2001
From: pictuga <contact@pictuga.com>
Date: Sun, 5 Dec 2021 12:09:01 +0100
Subject: [PATCH] Fn to access data_files & pkg files

---
 morss/feeds.py | 22 +++++++---------------
 morss/util.py  | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 15 deletions(-)
 create mode 100644 morss/util.py

diff --git a/morss/feeds.py b/morss/feeds.py
index 906db4d..b3c13c9 100644
--- a/morss/feeds.py
+++ b/morss/feeds.py
@@ -17,9 +17,7 @@
 
 import csv
 import json
-import os.path
 import re
-import sys
 from copy import deepcopy
 from datetime import datetime
 from fnmatch import fnmatch
@@ -30,6 +28,7 @@ from dateutil import tz
 from lxml import etree
 
 from .readabilite import parse as html_parse
+from .util import *
 
 json.encoder.c_make_encoder = None
 
@@ -52,7 +51,7 @@ except NameError:
 
 def parse_rules(filename=None):
     if not filename:
-        filename = os.path.join(os.path.dirname(__file__), 'feedify.ini')
+        filename = pkg_path('feedify.ini')
 
     config = RawConfigParser()
     config.read(filename)
@@ -66,18 +65,9 @@ def parse_rules(filename=None):
             # for each rule
 
             if rules[section][arg].startswith('file:'):
-                paths = [os.path.join(sys.prefix, 'share/morss/www', rules[section][arg][5:]),
-                    os.path.join(os.path.dirname(__file__), '../www', rules[section][arg][5:]),
-                    os.path.join(os.path.dirname(__file__), '../..', rules[section][arg][5:])]
-
-                for path in paths:
-                    try:
-                        file_raw = open(path).read()
-                        file_clean = re.sub('<[/?]?(xsl|xml)[^>]+?>', '', file_raw)
-                        rules[section][arg] = file_clean
-
-                    except IOError:
-                        pass
+                file_raw = open(data_path(rules[section][arg][5:])).read()
+                file_clean = re.sub('<[/?]?(xsl|xml)[^>]+?>', '', file_raw)
+                rules[section][arg] = file_clean
 
             elif '\n' in rules[section][arg]:
                 rules[section][arg] = rules[section][arg].split('\n')[1:]
@@ -810,6 +800,8 @@ class FeedJSON(Feed, ParserJSON):
 
 
 if __name__ == '__main__':
+    import sys
+
     from . import crawler
 
     req = crawler.adv_get(sys.argv[1] if len(sys.argv) > 1 else 'https://www.nytimes.com/', follow='rss')
diff --git a/morss/util.py b/morss/util.py
new file mode 100644
index 0000000..7f887e8
--- /dev/null
+++ b/morss/util.py
@@ -0,0 +1,50 @@
+# This file is part of morss
+#
+# Copyright (C) 2013-2020 pictuga <contact@pictuga.com>
+#
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option) any
+# later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along
+# with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import os.path
+import sys
+
+
+def pkg_path(path=''):
+    return os.path.join(os.path.dirname(__file__), path)
+
+
+data_path_base = None
+
+
+def data_path(path=''):
+    global data_path_base
+
+    if data_path_base is not None:
+        return os.path.join(data_path_base, path)
+
+    bases = [
+        os.path.join(sys.prefix, 'share/morss/www'),
+        os.path.join(pkg_path(), './../../../../share/morss/www'),
+        os.path.join(pkg_path(), '../www'),
+        os.path.join(pkg_path(), '../..')
+    ]
+
+    for base in bases:
+        full_path = os.path.join(base, path)
+
+        if os.path.isfile(full_path):
+            data_path_base = base
+            return data_path(path)
+
+    else:
+        raise IOError()