Fix requirement parsing for local dir with extras

Fixes #47

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2017-2021 Arkadiusz Bokowy <[email protected]>
+Copyright (c) 2017-2022 Arkadiusz Bokowy <[email protected]>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/flake8_requirements/checker.py

@@ -18,7 +18,7 @@
 from .modules import STDLIB_PY3
 
 # NOTE: Changing this number will alter package version as well.
-__version__ = "1.5.2"
+__version__ = "1.5.3"
 __license__ = "MIT"
 
 LOG = getLogger('flake8.plugin.requirements')
@@ -433,6 +433,9 @@ def discover_project_root_dir(cls):
     _requirement_match_option = re.compile(
         r"(-[\w-]+)(.*)").match
 
+    _requirement_match_extras = re.compile(
+        r"(.*?)\s*(\[[^]]+\])").match
+
     _requirement_match_spec = re.compile(
         r"(.*?)\s+--(global-option|install-option|hash)").match
 
@@ -509,6 +512,11 @@ def resolve_requirement(cls, requirement, max_depth=0, path=None):
             requirement = os.path.basename(requirement)
             if requirement.split()[0] == ".":
                 requirement = ""
+            # It seems that the parse_requirements() function does not like
+            # ".[foo,bar]" syntax (current directory with extras).
+            extras_match = cls._requirement_match_extras(requirement)
+            if extras_match is not None and extras_match.group(1) == ".":
+                requirement = ""
 
         # Extract requirement specifier (skip in-line options).
         spec_match = cls._requirement_match_spec(requirement)

test/test_requirements.txt

@@ -30,4 +30,5 @@ git+git://github.com/path/to/package-two@master#egg=package-two&subdirectory=src
 --editable /opt/whiteBox  # Local proprietary package
 
 ###### Install THIS project in a develop mode ######
+--editable .[foo,bar]
 --editable .