Issue 180: Fix not parsing pip.conf index urls

src/python_inspector/api.py

@@ -10,6 +10,7 @@
 #
 
 import os
+import subprocess
 from netrc import netrc
 from typing import Dict
 from typing import List
@@ -72,6 +73,42 @@ def to_dict(self, generic_paths=False):
         }
 
 
+def pip_conf_get_index_urls() -> list:
+    """
+    Returns a list of index_urls as provided by `pip config get`.
+    If none, it returns an empty list.
+    """
+
+    # Get index URLS from pip and split them into lists.
+    # Index URLs are split by whitespace
+    base_pip = ["python", "-m", "pip"]
+    config = ["config", "get"]
+    pip_index_url_cmd = base_pip + config + ["global.index-url"]
+    pip_extra_index_url_cmd = base_pip + config + ["global.extra-index-url"]
+    index_urls = subprocess.run(pip_index_url_cmd, capture_output=True)
+    if index_urls.returncode != 0:
+        index_urls = []
+    else:
+        index_urls = index_urls.stdout.decode("utf-8").split()
+    extra_index_urls = subprocess.run(pip_extra_index_url_cmd,
+                                      capture_output=True)
+    if extra_index_urls.returncode != 0:
+        extra_index_urls = []
+    else:
+        extra_index_urls = extra_index_urls.stdout.decode("utf-8").split()
+
+    # Extract index urls from environment variables
+    pip_index_url_env = [] if os.getenv("PIP_INDEX_URL") is None \
+        else os.getenv("PIP_INDEX_URL").split()
+    pip_extra_index_url_env = [] if os.getenv("PIP_EXTRA_INDEX_URL") is None \
+        else os.getenv("PIP_EXTRA_INDEX_URL").split()
+    pip_env_urls = pip_index_url_env + pip_extra_index_url_env
+
+    all_index_urls = [url for url in index_urls + extra_index_urls +
+                      pip_env_urls if url != ""]
+    return all_index_urls
+
+
 def resolve_dependencies(
     requirement_files=tuple(),
     setup_py_file=None,
@@ -146,6 +183,11 @@ def resolve_dependencies(
 
     files = []
 
+    pip_conf_index_urls = pip_conf_get_index_urls()
+
+    if pip_conf_index_urls != []:
+        index_urls = tuple(pip_conf_index_urls) + tuple(index_urls)
+
     if PYPI_SIMPLE_URL not in index_urls:
         index_urls = tuple([PYPI_SIMPLE_URL]) + tuple(index_urls)