This action depends on GNU tar

[ncfavier]

...because of the --hard-dereference flag, and hence will not work in environments where GNU tar is not available, like minimal containers.

Possible solutions:

• make GitHub Pages accept artifacts containing hard links (is there a technical reason it can't?)
• if GNU tar isn't available, fall back to not using --hard-dereference. This will still work fine in most cases where there are no hard links.
• embrace the dependency, but document it

[yoannchaudet]

I'll be on vacation for a few weeks but dropping a message here before it feels we are not taking a look!

The problem of tar is that there are multiple implementation and they have different options...

We don't accept any links in Pages, hard or symbolic. We also do server side validation to prevent that (it all comes down to security). Having the client (i.e. the action in the runner) use --hard-dereference allows for a seamless conversion for the rare cases someone would include hard links in what they build. Considering dropping the --hard-dereference option to use a common denominator set of tar options (which in practice is dumb, but will also expand the scope of where the action can run).

[sykhro]

+1 on documenting it.