Remove ability to use_goma via autoninja.

Doesn't run a build if use_goma is true, point to reclient docs.  Turns
off use_goma for linux and mac builds.  Windows will follow in 2-3 weeks.

Bug: b/277197166
Change-Id: Icf000ee5e4bdfeba82cadbbf2e02e7cd728e89b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5272474
Reviewed-by: Ben Segall <bentekkie@google.com>
Reviewed-by: Ramy Medhat <abdelaal@google.com>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Michael Savigny <msavigny@google.com>

autoninja.py

@@ -332,6 +332,46 @@ def main(args):
         use_goma = False
 
     if use_goma:
+        # Display a warning that goma is being deprecated, every time a build
+        # is executed with 'use_goma.
+        # Further changes to encourage switching may follow.
+        if sys.platform.startswith("win"):
+            print(
+                "The gn arg use_goma=true will be removed on Feb 21st. "
+                "Please use `use_remoteexec=true` instead. See "
+                "https://chromium.googlesource.com/chromium/src/+/main/docs/"
+                "windows_build_instructions.md#use-reclient "
+                "for setup instructions.",
+                file=sys.stderr,
+            )
+
+            t = 5
+            while t > 0:
+                print(
+                    f"The build will start in {t} seconds.",
+                    file=sys.stderr,
+                )
+                time.sleep(1)
+                t = t - 1
+        elif sys.platform == "darwin":
+            print(
+                "The gn arg `use_goma=true` is no longer supported. "
+                "Please use `use_remoteexec=true` instead. "
+                "If you are a googler see http://go/building-chrome-mac"
+                "#using-remote-execution for setup instructions. ",
+                file=sys.stderr,
+            )
+            sys.exit(1)
+        else:
+            print(
+                "The gn arg `use_goma=true` is no longer supported. "
+                "Please use `use_remoteexec=true` instead. See "
+                "https://chromium.googlesource.com/chromium/src/+/main/docs/"
+                "linux/build_instructions.md#use-reclient for setup instructions.",
+                file=sys.stderr,
+            )
+            sys.exit(1)
+
         gomacc_file = ("gomacc.exe"
                        if sys.platform.startswith("win") else "gomacc")
         goma_dir = os.environ.get("GOMA_DIR",
@@ -361,44 +401,7 @@ def main(args):
                     # script.
                     print("false")
                 sys.exit(1)
-        # Display a warning that goma is being deprecated, every time a build
-        # is executed with 'use_goma.
-        # Further changes to encourage switching may follow.
-        if sys.platform.startswith("win"):
-            print(
-                "The gn arg use_goma=true will be deprecated by EOY 2023. "
-                "Please use `use_remoteexec=true` instead. See "
-                "https://chromium.googlesource.com/chromium/src/+/main/docs/"
-                "windows_build_instructions.md#use-reclient "
-                "for setup instructions.",
-                file=sys.stderr,
-            )
-        elif sys.platform == "darwin":
-            print(
-                "The gn arg use_goma=true will be removed on Feb 7th 2024. "
-                "Please use `use_remoteexec=true` instead. "
-                "If you are a googler see http://go/building-chrome-mac"
-                "#using-remote-execution for setup instructions. ",
-                file=sys.stderr,
-            )
-        else:
-            print(
-                "The gn arg use_goma=true will be removed on Feb 7th 2024. "
-                "Please use `use_remoteexec=true` instead. See "
-                "https://chromium.googlesource.com/chromium/src/+/main/docs/"
-                "linux/build_instructions.md#use-reclient for setup instructions.",
-                file=sys.stderr,
-            )
-        if not sys.platform.startswith("win"):
-            # Artificial build delay is for linux/mac for now.
-            t = 5
-            while t > 0:
-                print(
-                    f"The build will start in {t} seconds.",
-                    file=sys.stderr,
-                )
-                time.sleep(1)
-                t = t - 1
+
 
 
     # A large build (with or without goma) tends to hog all system resources.

tests/autoninja_test.py

@@ -73,6 +73,55 @@ class AutoninjaTest(trial_dir.TestCase):
         self.assertEqual(args[args.index('-C') + 1], out_dir)
         self.assertIn('base', args)
 
+    @mock.patch('sys.platform', 'linux')
+    def test_autoninja_goma_not_supported_linux(self):
+        """
+        Test that when specifying use_goma=true and on linux, the
+        message that goma is not supported is displayed.
+        """
+        goma_dir = os.path.join(self.root_dir, 'goma_dir')
+        with mock.patch.dict(os.environ, {"GOMA_DIR": goma_dir}):
+            out_dir = os.path.join('out', 'dir')
+            write(os.path.join(out_dir, 'args.gn'), 'use_goma=true')
+            write(
+                os.path.join(
+                    'goma_dir', 'gomacc.exe'
+                    if sys.platform.startswith('win') else 'gomacc'), 'content')
+            with contextlib.redirect_stderr(io.StringIO()) as f:
+                with self.assertRaises(SystemExit):
+                    self.assertEqual(
+                        autoninja.main(['autoninja.py', '-C', out_dir]), 1)
+                self.maxDiff = None
+                print(f.getvalue())
+                self.assertIn(
+                    "The gn arg `use_goma=true` is no longer supported.",
+                    f.getvalue())
+
+    @mock.patch('sys.platform', 'darwin')
+    def test_autoninja_goma_not_supported_mac(self):
+        """
+        Test that when specifying use_goma=true and on mac, the
+        message that goma is not supported is displayed.
+        """
+        goma_dir = os.path.join(self.root_dir, 'goma_dir')
+        with mock.patch.dict(os.environ, {"GOMA_DIR": goma_dir}):
+            out_dir = os.path.join('out', 'dir')
+            write(os.path.join(out_dir, 'args.gn'), 'use_goma=true')
+            write(
+                os.path.join(
+                    'goma_dir', 'gomacc.exe'
+                    if sys.platform.startswith('win') else 'gomacc'), 'content')
+            with contextlib.redirect_stderr(io.StringIO()) as f:
+                with self.assertRaises(SystemExit):
+                    self.assertEqual(
+                        autoninja.main(['autoninja.py', '-C', out_dir]), 1)
+                self.maxDiff = None
+                print(f.getvalue())
+                self.assertIn(
+                    "The gn arg `use_goma=true` is no longer supported.",
+                    f.getvalue())
+
+    @mock.patch('sys.platform', 'win')
     def test_autoninja_goma(self):
         """
         Test that when specifying use_goma=true, autoninja verifies that Goma