gtkdoc: Add `ignore_headers` positional argument

Not all headers are public, or contain public types. GTK-Doc allows
adding headers to be ignored during the "scan" phase, by passing the
`--ignore-headers` command line argument to gtkdoc-scan.

Currently, you can do something like:

  ignored_headers = [ 'foo-private.h', 'bar-private.h', ]

  gnome.gtkdoc(...
               scan_args: [
                 '--ignore-headers=' + ' '.join(ignored_headers),
               ],
               ...)

But it does not guarantee escaping rules and it's definitely not nice.

We can add a simpler version of that mechanism through a new positional
argument, `ignore_headers`, which behaves like `content_files` or
`html_assets`, and takes an array of header files to ignore:

  gnome.gtkdoc(...
               ignore_headers: ignored_headers,
               ...)

0 files changed, 0 insertions, 0 deletions