gnome.generate_gir: refactor and allow passing multiple libraries

docs/markdown/Gnome-module.md

@@ -67,10 +67,15 @@ executable(
 
 ### gnome.generate_gir()
 
-Generates GObject introspection data. Takes one positional argument,
-the build target you want to build gir data for. There are several
-keyword arguments. Many of these map directly to the `g-ir-scanner`
-tool so see its documentation for more information.
+Generates GObject introspection data.
+
+Takes one or more positional arguments:
+
+Either one or more library objects you want to build gir data for, or a single
+executable object.
+
+There are several keyword arguments. Many of these map directly to the
+`g-ir-scanner` tool so see its documentation for more information.
 
 * `dependencies`: deps to use during introspection scanning
 * `extra_args`: command line arguments to pass to gir compiler

docs/markdown/snippets/generate_gir_multiple_libraries.md

@@ -0,0 +1,7 @@
+## gnome.generate_gir() now optionally accepts multiple libraries
+
+The GNOME module can now generate a single gir for multiple libraries, which
+is something `g-ir-scanner` supported, but had not been exposed yet.
+
+gnome.generate_gir() will now accept multiple positional arguments, if none
+of these arguments are an `Executable` instance.

test cases/frameworks/7 gnome/gir/meson-sample2.c

@@ -0,0 +1,45 @@
+#include "meson-sample2.h"
+
+struct _MesonSample2
+{
+  GObject parent_instance;
+};
+
+G_DEFINE_TYPE (MesonSample2, meson_sample2, G_TYPE_OBJECT)
+
+/**
+ * meson_sample2_new:
+ *
+ * Allocates a new #MesonSample2.
+ *
+ * Returns: (transfer full): a #MesonSample2.
+ */
+MesonSample2 *
+meson_sample2_new (void)
+{
+  return g_object_new (MESON_TYPE_SAMPLE2, NULL);
+}
+
+static void
+meson_sample2_class_init (MesonSample2Class *klass)
+{
+}
+
+static void
+meson_sample2_init (MesonSample2 *self)
+{
+}
+
+/**
+ * meson_sample2_print_message:
+ * @self: a #MesonSample2.
+ *
+ * Prints Hello.
+ *
+ * Returns: Nothing.
+ */
+void
+meson_sample2_print_message (MesonSample2 *self)
+{
+  g_print ("Message: Hello\n");
+}

test cases/frameworks/7 gnome/gir/meson-sample2.h

@@ -0,0 +1,21 @@
+#ifndef MESON_SAMPLE2_H
+#define MESON_SAMPLE2_H
+
+#if !defined (MESON_TEST)
+#error "MESON_TEST not defined."
+#endif
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define MESON_TYPE_SAMPLE2 (meson_sample2_get_type())
+
+G_DECLARE_FINAL_TYPE (MesonSample2, meson_sample2, MESON, SAMPLE2, GObject)
+
+MesonSample2 *meson_sample2_new           (void);
+void          meson_sample2_print_message (MesonSample2 *self);
+
+G_END_DECLS
+
+#endif /* MESON_SAMPLE2_H */

test cases/frameworks/7 gnome/gir/meson.build

@@ -1,6 +1,7 @@
 subdir('dep1')
 
 libsources = ['meson-sample.c', 'meson-sample.h']
+lib2sources = ['meson-sample2.c', 'meson-sample2.h']
 
 girlib = shared_library(
   'gir_lib',
@@ -9,6 +10,13 @@ girlib = shared_library(
   install : true
 )
 
+girlib2 = shared_library(
+  'gir_lib2',
+  sources : lib2sources,
+  dependencies : [gobj],
+  install : true
+)
+
 girexe = executable(
   'girprog',
   sources : 'prog.c',
@@ -19,8 +27,8 @@ girexe = executable(
 fake_dep = dependency('no-way-this-exists', required: false)
 
 gnome.generate_gir(
-  girlib,
-  sources : libsources,
+  girlib, girlib2,
+  sources : libsources + lib2sources,
   nsversion : '1.0',
   namespace : 'Meson',
   symbol_prefix : 'meson',

test cases/frameworks/7 gnome/gir/prog.py

@@ -6,3 +6,6 @@
     dep1 = MesonDep1.Dep1.new()
     dep2 = MesonDep2.Dep2.new("Hello, meson/py!")
     s.print_message(dep1, dep2)
+
+    s2 = Meson.Sample2.new()
+    s2.print_message()