From: Michael Froman <mfroman@mozilla.com>
Date: Mon, 20 Jun 2022 22:34:00 +0000
Subject: Bug 1775143 - pt7 - (mirror) a62f6186e9d6 r=ng

(skip-generation)

Depends on D149820

Differential Revision: https://phabricator.services.mozilla.com/D149821
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/243ea5e6411dc1b769419c07045e78d61f406541
---
 toolchain/win/setup_toolchain.py | 75 +++++++++++++++++---------------
 1 file changed, 39 insertions(+), 36 deletions(-)

diff --git a/toolchain/win/setup_toolchain.py b/toolchain/win/setup_toolchain.py
index c1d2fa2ce..1ff3608f0 100644
--- a/toolchain/win/setup_toolchain.py
+++ b/toolchain/win/setup_toolchain.py
@@ -239,10 +239,10 @@ def main():
 
   cpus = ('x86', 'x64', 'arm', 'arm64')
   assert target_cpu in cpus
-  vc_bin_dir = ''
-  vc_lib_path = ''
-  vc_lib_atlmfc_path = ''
-  vc_lib_um_path = ''
+  vc_bin_dir = 'fake_path/cl.exe'
+  vc_lib_path = 'fake_path/lib'
+  vc_lib_atlmfc_path = 'fake_path/atlmfc'
+  vc_lib_um_path = 'fake_path/lib_um'
   include = ''
   lib = ''
 
@@ -258,39 +258,43 @@ def main():
   def q(s):  # Quote s if it contains spaces or other weird characters.
     return s if re.match(r'^[a-zA-Z0-9._/\\:-]*$', s) else '"' + s + '"'
 
-  for cpu in cpus:
-    if cpu == target_cpu:
-      # Extract environment variables for subprocesses.
-      env = _LoadToolchainEnv(cpu, toolchain_root, win_sdk_path, target_store)
-      env['PATH'] = runtime_dirs + os.pathsep + env['PATH']
-
-      vc_bin_dir = FindFileInEnvList(env, 'PATH', os.pathsep, 'cl.exe')
-      vc_lib_path = FindFileInEnvList(env, 'LIB', ';', 'msvcrt.lib')
-      vc_lib_atlmfc_path = FindFileInEnvList(
-          env, 'LIB', ';', 'atls.lib', optional=True)
-      vc_lib_um_path = FindFileInEnvList(env, 'LIB', ';', 'user32.lib')
-
-      # The separator for INCLUDE here must match the one used in
-      # _LoadToolchainEnv() above.
-      include = [p.replace('"', r'\"') for p in env['INCLUDE'].split(';') if p]
-      include = list(map(relflag, include))
-
-      lib = [p.replace('"', r'\"') for p in env['LIB'].split(';') if p]
-      lib = list(map(relflag, lib))
-
-      include_I = ' '.join([q('/I' + i) for i in include])
-      include_imsvc = ' '.join([q('-imsvc' + i) for i in include])
-      libpath_flags = ' '.join([q('-libpath:' + i) for i in lib])
-
-      if (environment_block_name != ''):
-        env_block = _FormatAsEnvironmentBlock(env)
-        with open(environment_block_name, 'w') as f:
-          f.write(env_block)
-
+#   for cpu in cpus:
+#     if cpu == target_cpu:
+#       # Extract environment variables for subprocesses.
+#       env = _LoadToolchainEnv(cpu, toolchain_root, win_sdk_path, target_store)
+#       env['PATH'] = runtime_dirs + os.pathsep + env['PATH']
+# 
+#       vc_bin_dir = FindFileInEnvList(env, 'PATH', os.pathsep, 'cl.exe')
+#       vc_lib_path = FindFileInEnvList(env, 'LIB', ';', 'msvcrt.lib')
+#       vc_lib_atlmfc_path = FindFileInEnvList(
+#           env, 'LIB', ';', 'atls.lib', optional=True)
+#       vc_lib_um_path = FindFileInEnvList(env, 'LIB', ';', 'user32.lib')
+# 
+#       # The separator for INCLUDE here must match the one used in
+#       # _LoadToolchainEnv() above.
+#       include = [p.replace('"', r'\"') for p in env['INCLUDE'].split(';') if p]
+#       include = list(map(relflag, include))
+# 
+#       lib = [p.replace('"', r'\"') for p in env['LIB'].split(';') if p]
+#       lib = list(map(relflag, lib))
+# 
+#       include_I = ' '.join([q('/I' + i) for i in include])
+#       include_imsvc = ' '.join([q('-imsvc' + i) for i in include])
+#       libpath_flags = ' '.join([q('-libpath:' + i) for i in lib])
+# 
+#       if (environment_block_name != ''):
+#         env_block = _FormatAsEnvironmentBlock(env)
+#         with open(environment_block_name, 'w') as f:
+#           f.write(env_block)
+
+# We don't really use any of this information so it can be skipped altogether
+  env = {}
+  env['PATH'] = ''
+  include_I = include
+  include_imsvc = include
+  libpath_flags = ''
   print('vc_bin_dir = ' + gn_helpers.ToGNString(vc_bin_dir))
-  assert include_I
   print('include_flags_I = ' + gn_helpers.ToGNString(include_I))
-  assert include_imsvc
   if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', 1))) and win_sdk_path:
     print('include_flags_imsvc = ' +
           gn_helpers.ToGNString(q('/winsysroot' + relflag(toolchain_root))))
@@ -303,7 +307,6 @@ def main():
     print('vc_lib_atlmfc_path = ' + gn_helpers.ToGNString(vc_lib_atlmfc_path))
   print('vc_lib_um_path = ' + gn_helpers.ToGNString(vc_lib_um_path))
   print('paths = ' + gn_helpers.ToGNString(env['PATH']))
-  assert libpath_flags
   print('libpath_flags = ' + gn_helpers.ToGNString(libpath_flags))