Allow drive paths already in the jailer rootfs#510
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Before, when providing a drive which is already in the jailer rootfs, the LinkFilesHandler would fail trying to hard-link the file to the path where it is already linked. This commit makes it so that we skip the hard-link step in this case. This change allows provisioning virtual drive contents via FUSE, so that the drive contents can be lazily fetched from a remote server. The FUSE mount needs to be set up in the chroot ahead of time, because FUSE files can't be hard-linked across filesystem boundaries. Signed-off-by: Brandon Duffany <brandon@buildbuddy.io>
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Before, when providing a drive which is already in the jailer
rootfs, the LinkFilesHandler would fail trying to hard-link the
file to the path where it is already linked.
This commit makes it so that we skip the hard-link step in this case.
This change allows provisioning virtual drive contents via FUSE, so
that the drive contents can be lazily fetched from a remote server.
The FUSE mount needs to be set up in the chroot ahead of time,
because FUSE files can't be hard-linked across filesystem boundaries.