Re: [libvirt] [PATCHv5 13/23] blockjob: allow for existing files

This copies some of the checks from snapshots regarding testing when a file already exists. In the process, I noticed snapshots had hard-to-read logic, as well as a missing sanity check: REUSE_EXT should require the destination to already be present. * src/qemu/qemu_driver.c (qemuDomainBlockRebase): Allow REUSE_EXT flag. (qemuDomainBlockCopy): Wire up flag, and add some sanity checks. (qemuDomainSnapshotDiskPrepare): Require destination on REUSE_EXT. --- was 13/18 in v4 v5: improve logic readability src/qemu/qemu_driver.c | 50 ++++++++++++++++++++++++++++++++++++++++++----- 1 files changed, 44 insertions(+), 6 deletions(-)