I'm not entirely sold on this. On one hand, it does the desired:
$ ./tarsnap --cachedir empty-cachedir/ -d -f tiny
tarsnap: Cache directory must already exist for -d; check --cachedir and/or run --fsck
On the other hand, it seems messy to #include "chunks.h" in bsdtar.c.
On the gripping hand, glue.c doesn't seem much better. And while I could certainly add functions to multitape etc. to pass the function call down the layers, that seems like overkill. Another option would be to move chunks_directory_exists() to a separate chunks_really_public.h, then only include that one in bsdtar.c.
So this seems to me like the least bad way to implement this, but I don't like it.
I'm not entirely sold on this. On one hand, it does the desired:
On the other hand, it seems messy to
#include "chunks.h"inbsdtar.c.On the gripping hand,
glue.cdoesn't seem much better. And while I could certainly add functions to multitape etc. to pass the function call down the layers, that seems like overkill. Another option would be to movechunks_directory_exists()to a separatechunks_really_public.h, then only include that one inbsdtar.c.So this seems to me like the least bad way to implement this, but I don't like it.