download_fuchsia_deps

Author: zijiehe-google-com

DEPS

@@ -107,6 +107,12 @@ vars = {
   # //flutter/tools/gn.
   'mac_sdk_min': '10.14',
 
+  # Checkout Fuchsia dependencies only on Linux. This is the umbrella flag which
+  # controls the behavior of all fuchsia related flags. I.e. any fuchsia related
+  # logic or condition may not work if this flag is False.
+  # TODO(zijiehe): Make this condition more strict to only download fuchsia
+  # dependencies when necessary: b/40935282
+  'download_fuchsia_deps': 'host_os == "linux"',
   # Downloads the fuchsia SDK as listed in fuchsia_sdk_path var. This variable
   # is currently only used for the Fuchsia LSC process and is not intended for
   # local development.
@@ -1013,7 +1019,7 @@ deps = {
         'version': 'L6_XzizcJqjneCvGA941vq-Dpu0FPwhdyfqJ0qXDUG0C'
        }
      ],
-     'condition': 'host_os == "linux" and not download_fuchsia_sdk',
+     'condition': 'download_fuchsia_deps and not download_fuchsia_sdk',
      'dep_type': 'cipd',
    },
 
@@ -1024,7 +1030,7 @@ deps = {
         'version': Var('fuchsia_test_scripts_version'),
        }
      ],
-     'condition': 'host_os == "linux"',
+     'condition': 'download_fuchsia_deps',
      'dep_type': 'cipd',
    },
 
@@ -1035,7 +1041,7 @@ deps = {
         'version': Var('fuchsia_gn_sdk_version'),
        }
      ],
-     'condition': 'host_os == "linux"',
+     'condition': 'download_fuchsia_deps',
      'dep_type': 'cipd',
    },
 
@@ -1129,7 +1135,7 @@ hooks = [
   {
     'name': 'Download Fuchsia SDK',
     'pattern': '.',
-    'condition': 'download_fuchsia_sdk',
+    'condition': 'download_fuchsia_deps and download_fuchsia_sdk',
     'action': [
       'python3',
       'src/flutter/tools/download_fuchsia_sdk.py',
@@ -1244,7 +1250,7 @@ hooks = [
   {
     'name': 'Generate Fuchsia GN build rules',
     'pattern': '.',
-    'condition': 'host_os == "linux"',
+    'condition': 'download_fuchsia_deps',
     'action': [
       'python3',
       'src/flutter/tools/fuchsia/with_envs.py',