From 023cd127951dc06dc0fae5449083b5133bc4ff3a Mon Sep 17 00:00:00 2001
From: Adam Simpkins <simpkins@fb.com>
Date: Wed, 20 Nov 2019 15:59:33 -0800
Subject: [PATCH] getdeps: automatically detect if a build appears to be
 Facebook-internal

Summary:
Automatically detect the `--facebook-internal` flag based on the current
repository project name.

Reviewed By: wez

Differential Revision: D18621358

fbshipit-source-id: f2b3018169b151811eec455863a8bfc17667d4d8
---
 build/fbcode_builder/getdeps.py           | 8 +++++++-
 build/fbcode_builder/getdeps/buildopts.py | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/build/fbcode_builder/getdeps.py b/build/fbcode_builder/getdeps.py
index 8e2d1184b..92c14087f 100755
--- a/build/fbcode_builder/getdeps.py
+++ b/build/fbcode_builder/getdeps.py
@@ -729,7 +729,13 @@ def parse_args():
         "--facebook-internal",
         help="Setup the build context as an FB internal build",
         action="store_true",
-        default=False,
+        default=None,
+    )
+    add_common_arg(
+        "--no-facebook-internal",
+        help="Perform a non-FB internal build, even when in an fbsource repository",
+        action="store_false",
+        dest="facebook_internal",
     )
 
     ap = argparse.ArgumentParser(
diff --git a/build/fbcode_builder/getdeps/buildopts.py b/build/fbcode_builder/getdeps/buildopts.py
index b79beb272..8e376fd9c 100644
--- a/build/fbcode_builder/getdeps/buildopts.py
+++ b/build/fbcode_builder/getdeps/buildopts.py
@@ -154,7 +154,7 @@ class BuildOptions(object):
     def is_linux(self):
         return self.host_type.is_linux()
 
-    def get_context_generator(self, host_tuple=None, facebook_internal=False):
+    def get_context_generator(self, host_tuple=None, facebook_internal=None):
         """ Create a manifest ContextGenerator for the specified target platform. """
         if host_tuple is None:
             host_type = self.host_type
@@ -163,6 +163,12 @@ class BuildOptions(object):
         else:
             host_type = HostType.from_tuple_string(host_tuple)
 
+        # facebook_internal is an Optional[bool]
+        # If it is None, default to assuming this is a Facebook-internal build if
+        # we are running in an fbsource repository.
+        if facebook_internal is None:
+            facebook_internal = self.fbsource_dir is not None
+
         return ContextGenerator(
             {
                 "os": host_type.ostype,