From 0ac619c39a7e119efdfa3a75546aefee41f4113c Mon Sep 17 00:00:00 2001
From: js-nano <62746467+js-nano@users.noreply.github.com>
Date: Thu, 14 Mar 2024 13:32:08 +0000
Subject: [PATCH] Retry gRPC CMake configuration if it fails

The gRPC CMake configuration step can fail to due to a failure when downloading third party archives.  These failures are expected, and the user is instructed to retry.  So, if configuration fails, retry it

Also set the `gRPC_DOWNLOAD_ARCHIVES` CMake flag to `False`, to avoid downloading these unnecessary archives in the first place, in versions of gRPC that understand the flag
---
 recipes/grpc/all/conanfile.py | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/recipes/grpc/all/conanfile.py b/recipes/grpc/all/conanfile.py
index 1d39ab202a3b0..ee416f1a4550c 100644
--- a/recipes/grpc/all/conanfile.py
+++ b/recipes/grpc/all/conanfile.py
@@ -1,7 +1,7 @@
 import os
 
 from conan import ConanFile
-from conan.errors import ConanInvalidConfiguration
+from conan.errors import ConanInvalidConfiguration, ConanException
 from conan.tools.apple import is_apple_os
 from conan.tools.build import cross_building, valid_min_cppstd, check_min_cppstd
 from conan.tools.cmake import cmake_layout, CMake, CMakeToolchain, CMakeDeps
@@ -174,6 +174,11 @@ def generate(self):
         tc.cache_variables["gRPC_BUILD_GRPC_PYTHON_PLUGIN"] = self.options.python_plugin
         tc.cache_variables["gRPC_BUILD_GRPC_RUBY_PLUGIN"] = self.options.ruby_plugin
 
+        # Never download unnecessary archives
+        # (supported in gRPC >= 1.62.0)
+        tc.cache_variables["gRPC_DOWNLOAD_ARCHIVES"] = False
+
+
         # Consumed targets (abseil) via interface target_compiler_feature can propagate newer standards
         if not valid_min_cppstd(self, self._cxxstd_required):
             tc.cache_variables["CMAKE_CXX_STANDARD"] = self._cxxstd_required
@@ -207,7 +212,13 @@ def _patch_sources(self):
     def build(self):
         self._patch_sources()
         cmake = CMake(self)
-        cmake.configure()
+
+        # The CMake configure step can fail spuriously, but succeed on a retry
+        try:
+            cmake.configure()
+        except ConanException:
+            cmake.configure()
+
         cmake.build()
 
     def package(self):