From efe1ce41d2f8e2f6eacc37450f517e142e2c6490 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
Date: Wed, 22 Oct 2025 16:40:01 +0100
Subject: [PATCH] build: Use either libgirepository-2.0 or libgirepository-1.0,
 as appropriate

From: Simon McVittie <smcv@debian.org>

pygobject 3.52 and libpeas 1.38 have switched
from libgirepository-1.0 to libgirepository-2.0, and the whole process
(pygobject, libpeas and the application) must agree on a single version
to use. Automatically detect the right one at compile-time.

This checks both the pygobject version and the libpeas version.
Conversely, pygobject is not necessarily guaranteed to be installed
at the time that entangle is compiled, so we can't completely rely
on being able to check its version.

Signed-off-by: Simon McVittie <smcv@debian.org>
---
 meson.build                         | 18 +++++++++++++++++-
 src/backend/meson.build             |  1 +
 src/entangle-main.c                 | 11 +++++++++++
 src/frontend/entangle-application.c | 16 +++++++++++++++-
 src/frontend/meson.build            |  2 +-
 src/meson.build                     |  2 +-
 6 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/meson.build b/meson.build
index a046541..4f24389 100644
--- a/meson.build
+++ b/meson.build
@@ -21,6 +21,7 @@ pango_min_version = '>= 1.40.11'
 gphoto2_min_version = '>= 2.5.0'
 gudev_min_version = '>= 145'
 gobject_introspection_min_version = '>= 1.54.0'
+girepository2_min_version = '>= 2.86'
 lcms2_min_version = '>= 2.0'
 libpeas_min_version = '>= 1.2.0'
 gexiv2_min_version = '>= 0.10'
@@ -43,10 +44,10 @@ pango_dep = dependency('pango', version: pango_min_version)
 pango_cairo_dep = dependency('pangocairo', version: pango_min_version)
 gphoto2_dep = dependency('libgphoto2', version: gphoto2_min_version)
 gudev_dep = dependency('gudev-1.0', version: gudev_min_version)
-gobject_introspection_dep = dependency('gobject-introspection-1.0', version: gobject_introspection_min_version)
 lcms2_dep = dependency('lcms2', version: lcms2_min_version)
 libpeas_dep = dependency('libpeas-1.0', version: libpeas_min_version)
 libpeas_gtk_dep = dependency('libpeas-gtk-1.0', version: libpeas_min_version)
+pygobject_dep = dependency('pygobject-3.0', required: false)
 gexiv2_dep = dependency('gexiv2-0.16', version: gexiv2_016_min_version, required: false)
 if not gexiv2_dep.found()
     gexiv2_dep = dependency('gexiv2', version: gexiv2_min_version)
@@ -59,6 +60,21 @@ libraw_dep = cc.find_library('raw_r')
 gst_dep = dependency('gstreamer-1.0', version: gst_min_version)
 gst_video_dep = dependency('gstreamer-video-1.0', version: gst_min_version)
 
+# pygobject 3.52.x switched from libgirepository-1.0 to libgirepository-2.0,
+# and libpeas 1.38 did the same.
+# pygobject -dev files might not always be installed, but libpeas
+# 1.36 might have that change backported by distros, so check both.
+if (
+  libpeas_dep.version().version_compare('>=1.38')
+  or (pygobject_dep.found() and pygobject_dep.version().version_compare('>=3.52'))
+)
+  girepository_dep = dependency('girepository-2.0', version: girepository2_min_version)
+  girepository_cflags = ['-DGIREPOSITORY_MAJOR_VERSION=2']
+else
+  girepository_dep = dependency('gobject-introspection-1.0', version: gobject_introspection_min_version)
+  girepository_cflags = ['-DGIREPOSITORY_MAJOR_VERSION=1']
+endif
+
 gnome = import('gnome')
 i18n = import('i18n')
 
diff --git a/src/backend/meson.build b/src/backend/meson.build
index c4c28e6..bcd3cf0 100644
--- a/src/backend/meson.build
+++ b/src/backend/meson.build
@@ -121,6 +121,7 @@ entangle_backend_sources += entangle_backend_enum_sources
 entangle_backend_deps = [
   glib_dep,
   gio_dep,
+  girepository_dep,
   gthread_dep,
   gdk_pixbuf_dep,
   gst_dep,
diff --git a/src/entangle-main.c b/src/entangle-main.c
index 970bfee..bfc0f4a 100644
--- a/src/entangle-main.c
+++ b/src/entangle-main.c
@@ -21,7 +21,11 @@
 #include <locale.h>
 #include <stdio.h>
 
+#if GIREPOSITORY_MAJOR_VERSION >= 2
+#include <girepository/girepository.h>
+#else
 #include <girepository.h>
+#endif
 #include <glib/gi18n.h>
 #include <gst/gst.h>
 #include <gtk/gtk.h>
@@ -80,7 +84,14 @@ main(int argc, char **argv)
     gst_init(NULL, NULL);
 
     if (ins) {
+#if GIREPOSITORY_MAJOR_VERSION >= 2
+        GStrv args = g_strsplit(ins, ",", 2);
+
+        gi_repository_dump(args[0], args[1], NULL);
+        g_strfreev(args);
+#else
         g_irepository_dump(ins, NULL);
+#endif
         return 0;
     }
 
diff --git a/src/frontend/entangle-application.c b/src/frontend/entangle-application.c
index 3e3e1af..c6a9f2c 100644
--- a/src/frontend/entangle-application.c
+++ b/src/frontend/entangle-application.c
@@ -33,6 +33,12 @@
 #include "entangle-preferences-display.h"
 #include "entangle-preferences.h"
 
+#if GIREPOSITORY_MAJOR_VERSION >= 2
+#include <girepository/girepository.h>
+#else
+#include <girepository.h>
+#endif
+
 /**
  * SECTION:entangle-application
  * @Short_description: Global application state base class
@@ -55,6 +61,7 @@ struct _EntangleApplication
     EntangleHelpAbout *about;
     EntangleCameraSupport *devices;
 
+    GIRepository *giRepository;
     PeasEngine *pluginEngine;
     PeasExtensionSet *pluginExt;
 };
@@ -149,6 +156,7 @@ entangle_application_finalize(GObject *object)
         g_object_unref(app->pluginEngine);
     if (app->pluginExt)
         g_object_unref(app->pluginExt);
+    g_clear_object(&app->giRepository);
 
     G_OBJECT_CLASS(entangle_application_parent_class)->finalize(object);
 }
@@ -470,7 +478,13 @@ entangle_application_init(EntangleApplication *app)
     app->activeCameras = entangle_camera_list_new_active();
     app->supportedCameras = entangle_camera_list_new_supported();
 
-    g_irepository_require(g_irepository_get_default(), "Peas", "1.0", 0, NULL);
+#if GIREPOSITORY_MAJOR_VERSION >= 2
+    app->giRepository = gi_repository_dup_default();
+    gi_repository_require(app->giRepository, "Peas", "1.0", 0, NULL);
+#else
+    app->giRepository = g_object_ref(g_irepository_get_default());
+    g_irepository_require(app->giRepository, "Peas", "1.0", 0, NULL);
+#endif
 
     userdir =
         g_build_filename(g_get_user_config_dir(), "entangle/plugins", NULL);
diff --git a/src/frontend/meson.build b/src/frontend/meson.build
index 81310c8..46cc364 100644
--- a/src/frontend/meson.build
+++ b/src/frontend/meson.build
@@ -108,7 +108,7 @@ entangle_frontend_cflags = [
     '-DPKGDATADIR="' + entangle_pkgdatadir + '"',
     '-DLIBDIR="' + entangle_libdir + '"',
     '-DVERSION="' + meson.project_version() + '"',
-]
+] + girepository_cflags
 
 entangle_frontend = shared_library(
   'entangle_frontend',
diff --git a/src/meson.build b/src/meson.build
index d488402..e01e2e1 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -23,7 +23,7 @@ entangle_cflags = [
     '-DDATADIR="' + entangle_datadir + '"',
     '-DLOCALE_DIR="' + entangle_localedir + '"',
     '-DGETTEXT_PACKAGE="entangle"',
-]
+] + girepository_cflags
 
 entangle = executable(
   'entangle',
-- 
2.53.0

