gh-1070: Build 6613 considers profile directory read-only under certain conditions

Author: alabuzhev

far/changelog

@@ -1,3 +1,8 @@
+--------------------------------------------------------------------------------
+drkns 2026-02-04 20:37:59+00:00 - build 6642
+
+1. gh-1070: Build 6613 considers profile directory read-only under certain conditions.
+
 --------------------------------------------------------------------------------
 drkns 2026-02-03 00:20:49+00:00 - build 6641
 

far/platform.fs.cpp

@@ -58,6 +58,7 @@ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "common.hpp"
 #include "common/algorithm.hpp"
 #include "common/scope_exit.hpp"
+#include "common/uuid.hpp"
 
 // External:
 
@@ -2572,7 +2573,11 @@ WARNING_POP()
 
 	bool can_create_file_in(string_view const DirectoryName)
 	{
-		return create_file(DirectoryName, FILE_ADD_FILE, file_share_all, nullptr, OPEN_EXISTING)? true : false;
+		return
+			// without a temporary file, see https://devblogs.microsoft.com/oldnewthing/20251203-00/?p=111836
+			create_file(DirectoryName, FILE_ADD_FILE, file_share_all, nullptr, OPEN_EXISTING) ||
+			// just in case, with a temporary file, for non-trivial setups like gh-1070
+			create_file(path::join(DirectoryName, ::uuid::str(uuid::generate())), GENERIC_WRITE, file_share_all, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE);
 	}
 
 	bool CreateSymbolicLinkInternal(string_view const Object, string_view const Target, DWORD Flags)

far/vbuild.m4

@@ -1 +1 @@
-6641
+6642