Firestore: make FirebaseFirestore build on Android

The android build seems to not need the absl, upb, or SSL/crypto
libraries. Extract the absl, upb, and their dependencies into a separate
Windows conditional group. Use the same pattern as the other libraries
for SSL/crypto where we use a generator expression. Add an additional
cast for the error code type difference.

Author: compnerd

CMakeLists.txt

@@ -139,84 +139,87 @@ target_compile_options(FirebaseFirestore PRIVATE
   -cxx-interoperability-mode=default)
 target_link_libraries(FirebaseFirestore PUBLIC
   FirebaseCore
-  absl_bad_optional_access
-  absl_bad_variant_access
-  absl_base
-  absl_city
-  absl_cord
-  absl_cord_internal
-  absl_cordz_functions
-  absl_cordz_handle
-  absl_cordz_info
-  absl_crc_cord_state
-  absl_crc_cpu_detect
-  absl_crc_internal
-  absl_crc32c
-  absl_flags_commandlineflag_internal
-  absl_flags_commandlineflag
-  absl_flags_config
-  absl_flags_internal
-  absl_flags_marshalling
-  absl_flags_private_handle_accessor
-  absl_flags_program_name
-  absl_flags_reflection
-  absl_graphcycles_internal
-  absl_hash
-  absl_int128
-  absl_kernel_timeout_internal
-  absl_low_level_hash
-  absl_malloc_internal
-  absl_random_internal_platform
-  absl_random_internal_pool_urbg
-  absl_random_internal_randen
-  absl_random_internal_randen_hwaes
-  absl_random_internal_randen_hwaes_impl
-  absl_random_internal_randen_slow
-  absl_random_internal_seed_material
-  absl_random_seed_gen_exception
-  absl_raw_hash_set
-  absl_raw_logging_internal
-  absl_spinlock_wait
-  absl_stacktrace
-  absl_status
-  absl_statusor
-  absl_str_format_internal
-  absl_strerror
-  absl_string_view
-  absl_strings
-  absl_strings_internal
-  absl_symbolize
-  absl_synchronization
-  absl_throw_delegate
-  absl_time
-  absl_time_zone
-  address_sorting
-  cares
-  crypto
-  firebase
-  firebase_rest_lib
-  firestore_core
-  firestore_nanopb
-  firestore_protos_nanopb
-  firestore_util
-  flatbuffers
-  gpr
-  grpc
-  grpc++
-  leveldb
-  protobuf-nanopb
-  re2
-  snappy
-  ssl
-  upb_base_lib
-  upb_json_lib
-  upb_mem_lib
-  upb_message_lib
-  upb_textformat_lib
-  utf8_range_lib
-  utf8_validity
+  $<$<PLATFORM_ID:Windows>:crypto>
   $<$<PLATFORM_ID:Windows>:libcurl>
+  $<$<PLATFORM_ID:Windows>:ssl>
   $<$<PLATFORM_ID:Windows>:zlibstatic>)
+if(WIN32)
+  target_link_libraries(FirebaseFirestore PUBLIC
+    absl_bad_optional_access
+    absl_bad_variant_access
+    absl_base
+    absl_city
+    absl_cord
+    absl_cord_internal
+    absl_cordz_functions
+    absl_cordz_handle
+    absl_cordz_info
+    absl_crc_cord_state
+    absl_crc_cpu_detect
+    absl_crc_internal
+    absl_crc32c
+    absl_flags_commandlineflag_internal
+    absl_flags_commandlineflag
+    absl_flags_config
+    absl_flags_internal
+    absl_flags_marshalling
+    absl_flags_private_handle_accessor
+    absl_flags_program_name
+    absl_flags_reflection
+    absl_graphcycles_internal
+    absl_hash
+    absl_int128
+    absl_kernel_timeout_internal
+    absl_low_level_hash
+    absl_malloc_internal
+    absl_random_internal_platform
+    absl_random_internal_pool_urbg
+    absl_random_internal_randen
+    absl_random_internal_randen_hwaes
+    absl_random_internal_randen_hwaes_impl
+    absl_random_internal_randen_slow
+    absl_random_internal_seed_material
+    absl_random_seed_gen_exception
+    absl_raw_hash_set
+    absl_raw_logging_internal
+    absl_spinlock_wait
+    absl_stacktrace
+    absl_status
+    absl_statusor
+    absl_str_format_internal
+    absl_strerror
+    absl_string_view
+    absl_strings
+    absl_strings_internal
+    absl_symbolize
+    absl_synchronization
+    absl_throw_delegate
+    absl_time
+    absl_time_zone
+    address_sorting
+    cares
+    firebase
+    firebase_rest_lib
+    firestore_core
+    firestore_nanopb
+    firestore_protos_nanopb
+    firestore_util
+    flatbuffers
+    gpr
+    grpc
+    grpc++
+    leveldb
+    protobuf-nanopb
+    re2
+    snappy
+    upb_base_lib
+    upb_json_lib
+    upb_mem_lib
+    upb_message_lib
+    upb_textformat_lib
+    utf8_range_lib
+    utf8_validity)
+endif()
 
 add_library(FirebaseFunctions SHARED
   Sources/FirebaseFunctions/FunctionsErrorCode.swift

Sources/FirebaseFirestore/FirestoreErrorCode.swift

@@ -30,7 +30,7 @@ extension FirestoreErrorCode: RawRepresentable {
 
 extension FirestoreErrorCode {
   init(_ error: firebase.firestore.Error, errorMessage: String?) {
-    self.init((code: error.rawValue, message: errorMessage ?? "\(error.rawValue)"))
+    self.init((code: numericCast(error.rawValue), message: errorMessage ?? "\(error.rawValue)"))
   }
 
   init?(_ error: firebase.firestore.Error?, errorMessage: UnsafePointer<CChar>?) {

Sources/FirebaseFirestore/Timestamp+Swift.swift

@@ -1,7 +1,9 @@
 // SPDX-License-Identifier: BSD-3-Clause
 import Foundation
+#if os(Windows)
 import WinSDK
 import CRT
+#endif
 
 public typealias Timestamp = firebase.Timestamp
 private let NanoSecondsPerSecond = 1_000_000_000