fix(fs): use libuv for recursive cpSync to avoid VirtioFS EACCES - #65547
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Fix verified RED->GREEN. fs.cpSync recursive copy fails EACCES on Docker VirtioFS bind mounts via std::filesystem 0200 intermediate at node_file.cc:4205. libstdc++ creates dest with 0200 then fchmod, VirtioFS blocks. Single-file path at 4015 correctly uses uv_fs_copyfile when mode != 0. Fixes: nodejs#65497 Signed-off-by: Jeremy Schoemaker <jeremy@shoemoney.com> Assisted-by: Claude <noreply@anthropic.com>
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Fixes recursive cpSync EACCES on Docker VirtioFS bind mounts.
Bug: CpSyncCopyDir at src/node_file.cc:4205 uses std::filesystem::copy_file which libstdc++ implements by creating dest with 0200 then fchmod. VirtioFS blocks the 0200 creation with EACCES. Single-file path at 4015 already avoids this by using uv_fs_copyfile when mode != 0.
Fix: Use uv_fs_copyfile with mode 0 for recursive regular-file copies, preserving force, errorOnExist and skipExisting semantics via UV_FS_COPYFILE_EXCL and an exists check. Mirrors the single-file path fix.
Evidence: Verified RED before and GREEN after. All 42 test/parallel/test-fs-cp-sync* tests pass sequentially.
Fixes: #65497
Signed-off-by: Jeremy Schoemaker (jeremy@shoemoney.com)
Assisted-by: Claude