Forgot some changes

honesty/requirements.py

@@ -0,0 +1,45 @@
+# This is an especially simple version of requirements parsing; we do the simple
+# thing here to avoid extra deps or fragile APIs, at the expense of missing some
+# deps and false-positives.
+
+from glob import glob
+from pathlib import Path
+from typing import Iterator
+
+from packaging.requirements import Requirement
+from packaging.utils import canonicalize_name
+
+# These all have iter- prefixes because I expect a more public api to pick a
+# couple and return sets instead.
+
+
+def _iter_simple_requirements(path: Path) -> Iterator[Requirement]:
+    for line in path.read_text().splitlines():
+        line = line.split("#", 1)[0].strip()
+        if not line:
+            continue
+        if line.startswith("-"):
+            print("Ignoring", line)
+            continue
+
+        # N.b. Requirement does not canonicalize its name
+        yield Requirement(line)
+
+
+def iter_requirement_names(path: Path) -> Iterator[str]:
+    """
+    Returns the canonical names from the given requirements.txt
+    """
+    # TODO support, or document non-support, for git references
+
+    for req in _iter_simple_requirements(path):
+        yield canonicalize_name(req.name)
+
+
+def iter_glob_all_requirement_names(comma_separated_patterns: str) -> Iterator[str]:
+    for pattern in comma_separated_patterns.split(","):
+        if pattern:
+            for filename in sorted(glob(pattern)):
+                # We can't just use Path.glob because you mgiht pass
+                # 'reqs/*.txt' and this is considered a non-relative pattern.
+                yield from iter_requirement_names(Path(filename))

setup.cfg

@@ -40,6 +40,7 @@ install_requires =
     seekablehttpfile >= 0.0.4
     keke
     requests
+    indexurl >= 0.9.1
 
 [options.extras_require]
 dev =