Add --all-extras flag to pip-compile

piptools/scripts/compile.py

@@ -401,6 +401,8 @@ def cli(
     # Parsing/collecting initial requirements
     ###
 
+    extras = tuple(itertools.chain.from_iterable(ex.split(",") for ex in extras))
+
     constraints: List[InstallRequirement] = []
     setup_file_found = False
     for src_file in src_files:
@@ -442,6 +444,14 @@ def cli(
                     for req in metadata.get_all("Requires-Dist") or []
                 ]
             )
+            # Since "*" is not a valid extra there is no risk confusing an actual extra
+            # for the wildcard.
+            # https://peps.python.org/pep-0508/#grammar
+            if "*" in extras:
+                if len(extras) != 1:
+                    msg = "--extra=* only makes sense if it is the only --extra"
+                    raise click.BadParameter(msg)
+                extras = tuple(metadata.get_all("Provides-Extra"))
         else:
             constraints.extend(
                 parse_requirements(
@@ -452,8 +462,6 @@ def cli(
                 )
             )
 
-    extras = tuple(itertools.chain.from_iterable(ex.split(",") for ex in extras))
-
     if extras and not setup_file_found:
         msg = "--extra has effect only with setup.py and PEP-517 input formats"
         raise click.BadParameter(msg)

tests/test_cli_compile.py

@@ -2190,6 +2190,44 @@ def test_multiple_extras(fake_dists, runner, make_module, fname, content, extra_
     assert "extra ==" not in out.stderr
 
 
+@pytest.mark.network
+@pytest.mark.parametrize(("fname", "content"), METADATA_TEST_CASES)
+def test_wildcard_extras(fake_dists, runner, make_module, fname, content):
+    """
+    Test passing wildcard `--extra` includes all applicable extras.
+    """
+    meta_path = make_module(fname=fname, content=content)
+    out = runner.invoke(
+        cli,
+        [
+            "-n",
+            "--extra",
+            "*",
+            "--find-links",
+            fake_dists,
+            "--no-annotate",
+            "--no-emit-options",
+            "--no-header",
+            meta_path,
+        ],
+    )
+    assert out.exit_code == 0, out.stderr
+    assert (
+        dedent(
+            """\
+        small-fake-a==0.1
+        small-fake-b==0.2
+        small-fake-c==0.3
+        small-fake-d==0.4
+        small-fake-e==0.5
+        small-fake-f==0.6
+        Dry-run, so nothing updated.
+        """
+        )
+        == out.stderr
+    )
+
+
 def test_extras_fail_with_requirements_in(runner, tmpdir):
     """
     Test that passing `--extra` with `requirements.in` input file fails.