Prepare Firestore for upgrading the iOS SDK dependency to M115.

cmake/external/firestore.cmake

@@ -13,59 +13,26 @@
 # limitations under the License.
 
 include(ExternalProject)
+include(FindPythonInterp)
 
 if(TARGET firestore)
   return()
 endif()
 
-function(GetReleasedDep version)
-  message("Getting released firebase-ios-sdk @ ${version}")
-  ExternalProject_Add(
-    firestore
+ExternalProject_Add(
+  firestore
 
-    DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
-    URL https://github.com/firebase/firebase-ios-sdk/archive/${version}.tar.gz
+  DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
+  GIT_REPOSITORY https://github.com/firebase/firebase-ios-sdk
+  GIT_TAG 582b384c99a5dd24331161d436fdb6fd088fa833
+  GIT_SHALLOW ON
 
-    PREFIX ${PROJECT_BINARY_DIR}
-
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND ""
-    INSTALL_COMMAND ""
-    TEST_COMMAND ""
-    PATCH_COMMAND patch -Np1 -i ${CMAKE_CURRENT_LIST_DIR}/firestore_snappy.patch.txt
-    HTTP_HEADER "${EXTERNAL_PROJECT_HTTP_HEADER}"
-    )
-endfunction()
-
-function(GetTag t)
-  message("Getting firebase-ios-sdk from ${t}")
-  ExternalProject_Add(
-    firestore
-
-    DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
-    GIT_REPOSITORY "https://github.com/firebase/firebase-ios-sdk.git"
-    GIT_TAG ${t}
-    GIT_SHALLOW "ON"
-
-    PREFIX ${PROJECT_BINARY_DIR}
-
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND ""
-    INSTALL_COMMAND ""
-    TEST_COMMAND ""
-    PATCH_COMMAND patch -Np1 -i ${CMAKE_CURRENT_LIST_DIR}/firestore_snappy.patch.txt
-    HTTP_HEADER "${EXTERNAL_PROJECT_HTTP_HEADER}"
-    )
-endfunction()
-
-if((NOT FIRESTORE_DEP_SOURCE) OR (FIRESTORE_DEP_SOURCE STREQUAL "RELEASED"))
-  # Get from released dependency by default
-  GetReleasedDep("CocoaPods-8.12.1")
-else()
-  if(FIRESTORE_DEP_SOURCE STREQUAL "TIP")
-    GetTag("origin/master")
-  else()
-    GetTag(${FIRESTORE_DEP_SOURCE})
-  endif()
-endif()
+  PREFIX ${PROJECT_BINARY_DIR}
 
+  CONFIGURE_COMMAND ""
+  BUILD_COMMAND ""
+  INSTALL_COMMAND ""
+  TEST_COMMAND ""
+  PATCH_COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/firestore_patch.py --leveldb-version-from ${CMAKE_CURRENT_LIST_DIR}/leveldb.cmake
+  HTTP_HEADER "${EXTERNAL_PROJECT_HTTP_HEADER}"
+)

cmake/external/firestore_patch.py

@@ -0,0 +1,122 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Modify the version in leveldb.cmake from the Firebase iOS SDK to match the
+version from this C++ SDK.
+"""
+
+import argparse
+import os
+import pathlib
+import re
+from typing import List, Tuple
+
+
+VERSION_PATTERN = r"\s*set\s*\(\s*version\s+([^)\s]+)\s*\)\s*"
+VERSION_EXPR = re.compile(VERSION_PATTERN, re.IGNORECASE)
+URL_HASH_PATTERN = r"\s*URL_HASH\s+([0-9a-zA-Z=]+)\s*"
+URL_HASH_EXPR = re.compile(URL_HASH_PATTERN, re.IGNORECASE)
+
+
+def main() -> None:
+  (src_file, dest_file) = parse_args()
+
+  leveldb_version = load_value(src_file, VERSION_EXPR)
+  url_hash = load_value(src_file, URL_HASH_EXPR)
+
+  set_value(dest_file, VERSION_EXPR, leveldb_version)
+  set_value(dest_file, URL_HASH_EXPR, url_hash)
+
+
+def parse_args() -> Tuple[pathlib.Path, pathlib.Path]:
+  arg_parser = argparse.ArgumentParser()
+  arg_parser.add_argument("--leveldb-version-from", required=True)
+  arg_parser.add_argument("--leveldb-version-to")
+
+  parsed_args = arg_parser.parse_args()
+
+  leveldb_cmake_src_file = pathlib.Path(parsed_args.leveldb_version_from)
+
+  if parsed_args.leveldb_version_to:
+    leveldb_cmake_dest_file = pathlib.Path(parsed_args.leveldb_version_to)
+  else:
+    leveldb_cmake_dest_file = pathlib.Path.cwd() \
+      / "cmake" / "external" / "leveldb.cmake"
+
+  return (leveldb_cmake_src_file, leveldb_cmake_dest_file)
+
+
+def load_value(file_: pathlib.Path, expr: re.Pattern) -> str:
+  value = None
+  value_line = None
+  value_line_number = None
+
+  with file_.open("rt", encoding="utf8") as f:
+    for (line_number, line) in enumerate(f, start=1):
+      match = expr.fullmatch(line)
+      if not match:
+        continue
+      elif value is not None:
+        raise RegexMatchError(
+          f"Multiple lines matching regex {expr.pattern} found in "
+          f"{file_}: line {value_line_number}, {value_line.strip()} "
+          f"and line {line_number}, {line.strip()}")
+
+      value = match.group(1).strip()
+      value_line = line
+      value_line_number = line_number
+
+  if value is None:
+    raise RegexMatchError(
+      f"No line matching regex {expr.pattern} found in {file_}")
+
+  return value
+
+
+def set_value(file_: pathlib.Path, expr: re.Pattern, version: str) -> None:
+  with file_.open("rt", encoding="utf8") as f:
+    lines = list(f)
+
+  matching_line = None
+  matching_line_number = None
+
+  for (line_number, line) in enumerate(lines, start=1):
+    match = expr.fullmatch(line)
+    if not match:
+      continue
+    elif matching_line is not None:
+      raise RegexMatchError(
+        f"Multiple lines matching regex {expr.pattern} found in "
+        f"{file_}: line {matching_line_number}, {matching_line.strip()} "
+        f"and line {line_number}, {line.strip()}")
+
+    lines[line_number - 1] = line[:match.start(1)] + version + line[match.end(1):]
+    matching_line = line
+    matching_line_number = line_number
+
+  if matching_line is None:
+    raise RegexMatchError(
+      f"No line matching regex {expr.pattern} found in {file_}")
+
+  with file_.open("wt", encoding="utf8") as f:
+    f.writelines(lines)
+
+
+class RegexMatchError(Exception):
+  pass
+
+
+if __name__ == "__main__":
+  main()