Hi Rodney,
Sorry for not answering your questions! Admittedly, my previous email
was probably more of an introduction to the state of the Shotwell
plug-in system than it was a specific response to your points. Once
again, I apologize. I'll hit your questions one-by-one this time:
> Is there a shared library that the plug-ins link
> to for the Spit.* API/Interfaces?
No. The plug-ins link directly with the Shotwell executable. There's
no stub library or developer package that needs to be installed or
that appears in Synaptic or as a pkg-config module. All of the
references to the word "package" in the Shotwell make files refer to
Vala packages. As you noted, a Vala package isn't a "package" in the
sense of Synaptic or pkg-config. It's just a .vapi file and a .deps
file.
> is there also a .gir being generated for them?
No. Shotwell doesn't use GObject introspection to discover interfaces.
Interface specification is all done directly through .vapi and .deps
files.
> If so, is there a .vapi/.deps being built for those?
Yes. The .vapi and .deps files for the plug-in interfaces are
generated automatically by the Shotwell build system. Simply running
"./configure ; make" will cause the files shotwell-spit-1.0.vapi,
shotwell-spit-1.0.deps, shotwell-publishing-1.0.vapi, and
shotwell-publishing-1.0.deps to appear in the
${SHOTWELL_ROOT}/plugins/ directory. These should be sufficient for
interface specification, at least as far as the Vala compiler is
concerned. If you're curious, the make rules that generate these files
are located in the file ${SHOTWELL_ROOT}/src/plugins/mk/interfaces.mk.
> If so, is there a .pc file to specify CFLAGS/LDFLAGS for linking?
No. The Vala compiler will specify the CFLAGS and LDFLAGS variables
automatically when it invokes gcc as a child process. Right now, if
you want to develop plug-ins in C instead of Vala, you'll need to set
these up manually.
Cheers,
Lucas
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