Hello Rob, Is there a way to create an empty tar archive with toybox? I tried:
$ ./toybox tar czf foo.tar.gz -T /dev/null tar: empty archive It seems that this comes from from https://github.com/gfto/toybox/blob/75ebbd1571c85a06c0f4767beb7c20a19068f0b6/toys/pending/tar.c#L763 . Background The reason I ask is that I want to do this: tar czf out.tar.gz -T filelist.txt But filelist.txt could be empty and I expect it to create an empty archive. If toybox can't create empty archive when -T is empty, I have to use the following workaround instead (untested pseudocode): if [ -s filelist.txt ]; then tar czf out.tar.gz -T filelist.txt else gzip < /dev/null > out.tar.gz fi ... which works, but it is not quite gracefully handled IMO. As a reference, GNU tar 1.35 does the following: # This fails $ tar czf out.tar.gz tar: Cowardly refusing to create an empty archive # This succeeds $ tar czf out.tar.gz -T /dev/null -- Hong, Yifan <e...@google.com>
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