From f6e90cd7f909659bc5e2d2739638c739c187b0e0 Mon Sep 17 00:00:00 2001
From: Harry Kalodner <harry@offchainlabs.com>
Date: Sun, 6 Mar 2022 14:48:55 -0500
Subject: [PATCH] Switch from std::filesystem to boost

---
 packages/arb-avm-cpp/data_storage/CMakeLists.txt     |  2 +-
 .../data_storage/include/data_storage/arbcore.hpp    |  8 +++++++-
 packages/arb-avm-cpp/data_storage/src/arbcore.cpp    | 12 ++++++++----
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/packages/arb-avm-cpp/data_storage/CMakeLists.txt b/packages/arb-avm-cpp/data_storage/CMakeLists.txt
index 3a9827cbc3..f973c6b11b 100644
--- a/packages/arb-avm-cpp/data_storage/CMakeLists.txt
+++ b/packages/arb-avm-cpp/data_storage/CMakeLists.txt
@@ -92,7 +92,7 @@ target_include_directories(data_storage PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/../external
 )
 
-target_link_libraries(data_storage PUBLIC avm avm_values cavm Threads::Threads OpenSSL::Crypto)
+target_link_libraries(data_storage PUBLIC avm avm_values cavm Threads::Threads OpenSSL::Crypto Boost::filesystem)
 
 target_code_coverage(data_storage AUTO ALL)
 
diff --git a/packages/arb-avm-cpp/data_storage/include/data_storage/arbcore.hpp b/packages/arb-avm-cpp/data_storage/include/data_storage/arbcore.hpp
index fa155949f3..a14aa88aa9 100644
--- a/packages/arb-avm-cpp/data_storage/include/data_storage/arbcore.hpp
+++ b/packages/arb-avm-cpp/data_storage/include/data_storage/arbcore.hpp
@@ -51,6 +51,12 @@ struct Slice;
 class ColumnFamilyHandle;
 }  // namespace rocksdb
 
+namespace boost {
+namespace filesystem {
+class path;
+}  // namespace filesystem
+}  // namespace boost
+
 struct InitializeResult {
     rocksdb::Status status;
     bool finished;
@@ -529,7 +535,7 @@ class ArbCore {
         uint256_t& number);
     std::variant<rocksdb::Status, CheckpointVariant> getLastCheckpoint(
         ReadTransaction& tx);
-    void saveRocksdbCheckpoint(const std::filesystem::path& save_rocksdb_path,
+    void saveRocksdbCheckpoint(const boost::filesystem::path& save_rocksdb_path,
                                ReadTransaction& tx);
     void setCoreError(const std::string& message);
     bool threadBody(ThreadDataStruct& thread_data);
diff --git a/packages/arb-avm-cpp/data_storage/src/arbcore.cpp b/packages/arb-avm-cpp/data_storage/src/arbcore.cpp
index f362a422c8..dc39bc7678 100644
--- a/packages/arb-avm-cpp/data_storage/src/arbcore.cpp
+++ b/packages/arb-avm-cpp/data_storage/src/arbcore.cpp
@@ -29,6 +29,9 @@
 #include <data_storage/value/value.hpp>
 #include <data_storage/value/valuecache.hpp>
 
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
+
 #include <sys/stat.h>
 #include <ethash/keccak.hpp>
 #include <filesystem>
@@ -369,8 +372,9 @@ InitializeResult ArbCore::applyConfig() {
     }
 
     if (coreConfig.database_save_on_startup) {
-        std::filesystem::path save_rocksdb_path(coreConfig.database_save_path);
-        std::filesystem::create_directories(save_rocksdb_path);
+        boost::filesystem::path save_rocksdb_path(
+            coreConfig.database_save_path);
+        boost::filesystem::create_directories(save_rocksdb_path);
         ReadTransaction tx(data_storage);
         saveRocksdbCheckpoint(save_rocksdb_path, tx);
     }
@@ -1850,7 +1854,7 @@ void ArbCore::operator()() {
         thread_data.next_rocksdb_save_timepoint =
             std::chrono::steady_clock::now() +
             std::chrono::seconds(coreConfig.database_save_interval);
-        std::filesystem::create_directories(coreConfig.database_save_path);
+        boost::filesystem::create_directories(coreConfig.database_save_path);
     }
 
     try {
@@ -1878,7 +1882,7 @@ void ArbCore::operator()() {
 #endif
 }
 void ArbCore::saveRocksdbCheckpoint(
-    const std::filesystem::path& save_rocksdb_path,
+    const boost::filesystem::path& save_rocksdb_path,
     ReadTransaction& tx) {
     struct stat info;
     if ((stat(save_rocksdb_path.c_str(), &info) != 0) &&