bazel-contrib · brandjon · Mar 4, 2020 · Feb 23, 2020 · Mar 4, 2020
diff --git a/packaging/piptool.py b/packaging/piptool.py
@@ -105,6 +105,10 @@ def pip_main(argv):
 parser.add_argument('--extra_pip_args', action='store',
                    help=('Extra arguments to pass down to pip.'))

+def sort_wheels(whls):
+  """Sorts a list of wheels deterministically."""
+  return sorted(whls, key=lambda w: w.distribution() + '_' + w.version())
+
 def determine_possible_extras(whls):
  """Determines the list of possible "extras" for each .whl

@@ -153,7 +157,7 @@ def is_possible(distro, extra):
  return {
    whl: [
      extra
-      for extra in whl.extras()
+      for extra in sorted(whl.extras())
      if is_possible(whl.distribution(), extra)
    ]
    for whl in whls
@@ -177,7 +181,7 @@ def list_whls():
        if fname.endswith('.whl'):
          yield os.path.join(root, fname)

-  whls = [Wheel(path) for path in list_whls()]
+  whls = sort_wheels(Wheel(path) for path in list_whls())
  possible_extras = determine_possible_extras(whls)

  def repository_name(wheel):

diff --git a/tools/piptool.par b/tools/piptool.par