[Libguestfs] [nbdkit PATCH 0/2] RFC: tighter filter versions

[Eric Blake]

This is not intended for v1.14.  In fact, we may decide that the
second patch is too gross, although the first one still seems like a
useful improvement in isolation.

I will also point out that all our filters are in-tree, and set the
user-controlled field .version to the current release string.  We
could replace the second patch with a simpler one that just checks
._api_version as an int (as before), but adds the additional
requirement that .version match PACKAGE_VERSION from config.h.  Then
we don't have to hack around ABI changes of the first field member,
but are slightly more protected if we forget to bump ._api_version in
the future.

Eric Blake (2):
  include: Expose nbdkit version information to public
  filters: Stronger version match requirements

 configure.ac                | 15 ++++++++++++-
 server/filters.c            | 32 +++++++++++++++++++++-----
 include/nbdkit-common.h     |  2 ++
 include/nbdkit-filter.h     | 10 ++++-----
 .gitignore                  |  1 +
 include/Makefile.am         |  1 +
 include/nbdkit-version.h.in | 45 +++++++++++++++++++++++++++++++++++++
 7 files changed, 93 insertions(+), 13 deletions(-)
 create mode 100644 include/nbdkit-version.h.in

-- 
2.21.0