Re: [PATCH v3 0/3] interpret-trailers: add --where, --if-exists, --if-missing

Paolo Bonzini [off-list ref] writes:

From: Paolo Bonzini <pbonzini@redhat.com>

These options are useful to experiment with "git interpret-trailers"
without having to tinker with .gitconfig (Junio said git should ahve
done this first and only added configuration afterwards).  It can
be useful in the case where you want a different placement for the trailer,
or for scripts/aliases that don't want to rely on specific .gitconfig
settings.

Compared to v2, the main change is that option order on the command-line
is respected.  That is,

	--trailer 'acked-by: foo' --where end --trailer 'signed-off-by: me'

will only apply where=end to the second trailer.  Likewise,

	--where end --trailer 'signed-off-by: me' --no-where \
	--trailer 'acked-by: foo'

will only apply it to the first, reverting to trailer.*.where for the
"acked-by" trailer.

I am getting the following in my build after merging these to 'pu'.

trailer.c: In function 'apply_arg_if_exists':
trailer.c:270:2: error: enumeration value 'EXISTS_DEFAULT' not handled in switch [-Werror=switch]
  switch (arg_tok->conf.if_exists) {
  ^
trailer.c: In function 'apply_arg_if_missing':
trailer.c:307:2: error: enumeration value 'MISSING_DEFAULT' not handled in switch [-Werror=switch]
  switch (arg_tok->conf.if_missing) {
  ^
trailer.c: In function 'process_command_line_args':
trailer.c:717:3: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
   int separator_pos = find_separator(string, cl_separators);
   ^
cc1: all warnings being treated as errors
m