diff options
Diffstat (limited to 'internal/apply/fs.go')
| -rw-r--r-- | internal/apply/fs.go | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/internal/apply/fs.go b/internal/apply/fs.go index 56737e8..a8feccc 100644 --- a/internal/apply/fs.go +++ b/internal/apply/fs.go @@ -108,13 +108,12 @@ func moveFile(src, dst string) error { if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil { return err } - // Item 16 (fix round 2026-09-12, plan 5 Task 2): this guard must hold - // independently of runFileStep's own pre-check, layered rather than - // moved - the exact arrangement that produced plan 4's Task 5 Critical, - // where a helper that replaced silently was trusted because some caller - // had checked. Placed immediately before the operation that would - // otherwise clobber dst, the same way copyFile's own guard sits right - // before its rename into place. + // This guard must hold independently of runFileStep's own pre-check, + // layered rather than moved: trusting that some caller already checked + // is exactly what lets a silently replacing helper cause harm. Placed + // immediately before the operation that would otherwise clobber dst, + // the same way copyFile's own guard sits right before its rename into + // place. if err := refuseIfExists(dst); err != nil { return err } @@ -132,7 +131,7 @@ func moveFile(src, dst string) error { } // renameFile renames src to dst, refusing on its own when dst already -// exists rather than trusting that a caller checked first (item 16, same +// exists rather than trusting that a caller checked first (the same // reasoning as moveFile's guard above): a bare os.Rename silently replaces // an occupied destination, and runFileStep's own pre-check must not be the // only thing standing between a rename step and that. |