Replace boost::filesystem with std:filesystem (#169)

CMakeLists.txt

@@ -52,7 +52,7 @@ set(Boost_USE_STATIC_LIBS OFF)
 set(Boost_USE_MULTITHREADED ON)
 set(Boost_USE_STATIC_RUNTIME OFF)
 set(Boost_PYTHON_VERSION ${Python_VERSION})
-find_package(Boost COMPONENTS system iostreams filesystem python REQUIRED)
+find_package(Boost COMPONENTS iostreams python REQUIRED)
 
 # Interface library for flags and library dependencies
 add_library(spt3g INTERFACE)

core/src/dataio.cxx

@@ -9,7 +9,7 @@
 #include <boost/iostreams/device/file_descriptor.hpp>
 #include <boost/iostreams/device/array.hpp>
 #include <boost/iostreams/device/back_inserter.hpp>
-#include <boost/filesystem.hpp>
+#include <filesystem>
 
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -223,24 +223,24 @@ g3_check_input_path(const std::string &path)
 	if (path.find("://") != path.npos)
 		return;
 
-	boost::filesystem::path fpath(path);
-	if (!boost::filesystem::exists(fpath) ||
-	    !boost::filesystem::is_regular_file(fpath))
+	std::filesystem::path fpath(path);
+	if (!std::filesystem::exists(fpath) ||
+	    !std::filesystem::is_regular_file(fpath))
 		log_fatal("Could not find file %s", path.c_str());
 }
 
 void
 g3_check_output_path(const std::string &path)
 {
-	boost::filesystem::path fpath(path);
+	std::filesystem::path fpath(path);
 
 	if (fpath.empty())
 		log_fatal("Empty file path");
 
 	if (!fpath.has_parent_path())
 		return;
 
-	if (!boost::filesystem::exists(fpath.parent_path()))
+	if (!std::filesystem::exists(fpath.parent_path()))
 		log_fatal("Parent path does not exist: %s",
 		    fpath.parent_path().string().c_str());
 }

deps/install_boost.sh

@@ -35,7 +35,7 @@ if [ ! -e b2 ]; then
         --prefix=${PREFIX} \
         --with-python=$(which python3) \
         --with-python-root=$(python3-config --prefix) \
-        --with-libraries="system,iostreams,filesystem,python,regex"
+        --with-libraries="iostreams,python,regex"
 fi
 
 echo "Building boost..."