Ignore invalid requirement files

src/python_inspector/resolve_cli.py

@@ -10,13 +10,15 @@
 #
 
 import json
+import os
 from typing import List
 
 import click
 from packaging.requirements import Requirement
 from tinynetrc import Netrc
 
 from _packagedcode.models import DependentPackage
+from _packagedcode.pypi import PipRequirementsFileHandler
 from _packagedcode.pypi import can_process_dependent_package
 from python_inspector import dependencies
 from python_inspector import utils
@@ -183,15 +185,45 @@ def resolve_dependencies(
     if verbose:
         click.secho(f"Resolving dependencies...")
 
-    netrc = None
     if netrc_file:
+        if not os.path.exists(netrc_file):
+            raise Exception(f"Missing netrc file {netrc_file}")
+
+    if not netrc_file:
+        netrc_file = os.path.join(os.path.expanduser("~"), ".netrc")
+        if not os.path.exists(netrc_file):
+            netrc_file = os.path.join(os.path.expanduser("~"), "_netrc")
+            if not os.path.exists(netrc_file):
+                netrc_file = None
+
+    if netrc_file:
+        if verbose:
+            click.secho(f"Using netrc file {netrc_file}")
         netrc = Netrc(file=netrc_file)
+    else:
+        netrc = None
+
     # TODO: deduplicate me
     direct_dependencies = []
 
     if PYPI_SIMPLE_URL not in index_urls:
         index_urls = tuple([PYPI_SIMPLE_URL]) + tuple(index_urls)
 
+    invalid_requirement_files = []
+
+    for req_file in requirement_files:
+        if not PipRequirementsFileHandler.is_datafile(location=req_file):
+            invalid_requirement_files.append(req_file)
+
+    if invalid_requirement_files:
+        invalid_requirement_files = "\n".join(invalid_requirement_files)
+        click.secho(
+            "The following requirement files are not valid pip "
+            f"requirement file names: \n{invalid_requirement_files}",
+            err=True,
+        )
+        ctx.exit(1)
+
     for req_file in requirement_files:
         deps = dependencies.get_dependencies_from_requirements(requirements_file=req_file)
         for extra_data in dependencies.get_extra_data_from_requirements(requirements_file=req_file):

tests/data/frozen-requirements-pdt-expected.json

@@ -336,7 +336,7 @@
       {
         "key": "pip",
         "package_name": "pip",
-        "installed_version": "22.2.1",
+        "installed_version": "22.2.2",
         "dependencies": []
       }
     ]

tests/data/single-url-except-simple-expected.json

@@ -37,7 +37,7 @@
       "sdist_url": "https://files.pythonhosted.org/packages/59/87/84326af34517fca8c58418d148f2403df25303e02736832403587318e9e8/click-8.1.3.tar.gz"
     },
     {
-      "package": "pkg:pypi/flask@2.1.3",
+      "package": "pkg:pypi/flask@2.2.1",
       "dependencies": [
         "pkg:pypi/click@8.1.3",
         "pkg:pypi/importlib-metadata@4.12.0",
@@ -46,9 +46,9 @@
         "pkg:pypi/werkzeug@2.2.1"
       ],
       "wheel_urls": [
-        "https://files.pythonhosted.org/packages/af/6a/00d144ac1626fbb44c4ff36519712e258128985a5d0ae43344778ae5cbb9/Flask-2.1.3-py3-none-any.whl"
+        "https://files.pythonhosted.org/packages/3c/96/6c896f80f466b7f5e2cfd6d632fe5b0464dcb412757c595a663e59589a93/Flask-2.2.1-py3-none-any.whl"
       ],
-      "sdist_url": "https://files.pythonhosted.org/packages/5b/77/3accd62b8771954e9584beb03f080385b32ddcad30009d2a4fe4068a05d9/Flask-2.1.3.tar.gz"
+      "sdist_url": "https://files.pythonhosted.org/packages/4b/4f/50888944490f2263bd70171e8298c9626675fd3dfd750694a7beaa3484fb/Flask-2.2.1.tar.gz"
     },
     {
       "package": "pkg:pypi/importlib-metadata@4.12.0",

tests/test_cli.py

@@ -44,7 +44,7 @@ def test_cli_with_default_urls():
 
 @pytest.mark.online
 def test_pdt_output():
-    requirements_file = test_env.get_test_loc("pdt.txt")
+    requirements_file = test_env.get_test_loc("pdt-requirements.txt")
     expected_file = test_env.get_test_loc("pdt-expected.json", must_exist=False)
     extra_options = []
     check_requirements_resolution(
@@ -212,6 +212,24 @@ def test_passing_of_json_pdt_and_json_flags():
     run_cli(options=options, expected_rc=1)
 
 
+def test_passing_of_netrc_file_that_does_not_exist():
+    options = ["--specifier", "foo", "--netrc", "bar.txt", "--json", "-"]
+    run_cli(options=options, expected_rc=2)
+
+
+def test_passing_of_wrong_requiremts_file():
+    test_file = test_env.get_temp_file(file_name="pdt.txt", extension="")
+    with open(test_file, "w") as f:
+        f.write("")
+    test_file_2 = test_env.get_temp_file(file_name="setup.py", extension="")
+    with open(test_file_2, "w") as f:
+        f.write("")
+    options = ["--requirement", test_file, "--json", "-", "--requirement", test_file_2]
+    result = run_cli(options=options, expected_rc=1)
+    assert "pdt.txt" in result.output
+    assert "setup.py" in result.output
+
+
 def test_passing_of_no_json_output_flag():
     options = ["--specifier", "foo"]
     run_cli(options=options, expected_rc=1)

tests/test_resolution.py

@@ -145,7 +145,7 @@ def test_without_supported_wheels():
         "pkg:pypi/hyperlink@21.0.0",
         "pkg:pypi/idna@3.3",
         "pkg:pypi/pycparser@2.21",
-        "pkg:pypi/setuptools@63.3.0",
+        "pkg:pypi/setuptools@63.4.1",
         "pkg:pypi/txaio@22.2.1",
     ]