[gnome-software/1649-support-appstream-merging: 94/103] gs-plugin-appstream: Move gathering of system appstream dirs into a common place




commit 08feeed6c60785b06ee81c56918baaa0932d48a5
Author: Milan Crha <mcrha redhat com>
Date:   Thu Mar 31 12:01:30 2022 +0200

    gs-plugin-appstream: Move gathering of system appstream dirs into a common place
    
    This will be used in a following commit to read merge components
    from these directories.

 lib/gs-appstream.c                 | 107 +++++++++++++++++++++++++++++++++++++
 lib/gs-appstream.h                 |   1 +
 plugins/core/gs-plugin-appstream.c |  98 +++------------------------------
 3 files changed, 114 insertions(+), 92 deletions(-)
---
diff --git a/lib/gs-appstream.c b/lib/gs-appstream.c
index ed73ebad5..f455ac811 100644
--- a/lib/gs-appstream.c
+++ b/lib/gs-appstream.c
@@ -9,6 +9,7 @@
 
 #include "config.h"
 
+#include <glib/gstdio.h>
 #include <gnome-software.h>
 #include <locale.h>
 
@@ -1954,6 +1955,112 @@ gs_appstream_load_desktop_files (XbBuilder      *builder,
        return TRUE;
 }
 
+static void
+gs_add_appstream_catalog_location (GPtrArray *locations,
+                                  const gchar *root)
+{
+       g_autofree gchar *catalog_path = NULL;
+       g_autofree gchar *catalog_legacy_path = NULL;
+       gboolean ignore_legacy_path = FALSE;
+
+       catalog_path = g_build_filename (root, "swcatalog", NULL);
+       catalog_legacy_path = g_build_filename (root, "app-info", NULL);
+
+       /* ignore compatibility symlink if one exists, so we don't scan the same location twice */
+       if (g_file_test (catalog_legacy_path, G_FILE_TEST_IS_SYMLINK)) {
+               g_autofree gchar *link_target = g_file_read_link (catalog_legacy_path, NULL);
+               if (link_target != NULL) {
+                       if (g_strcmp0 (link_target, catalog_path) == 0) {
+                               ignore_legacy_path = TRUE;
+                               g_debug ("Ignoring legacy AppStream catalog location '%s'.", 
catalog_legacy_path);
+                       }
+               }
+       }
+
+       g_ptr_array_add (locations,
+                        g_build_filename (catalog_path, "xml", NULL));
+       g_ptr_array_add (locations,
+                        g_build_filename (catalog_path, "yaml", NULL));
+
+       if (!ignore_legacy_path) {
+               g_ptr_array_add (locations,
+                                g_build_filename (catalog_legacy_path, "xml", NULL));
+               g_ptr_array_add (locations,
+                                g_build_filename (catalog_legacy_path, "xmls", NULL));
+               g_ptr_array_add (locations,
+                                g_build_filename (catalog_legacy_path, "yaml", NULL));
+       }
+}
+
+GPtrArray *
+gs_appstream_get_appstream_data_dirs (void)
+{
+       GPtrArray *appstream_data_dirs = g_ptr_array_new_with_free_func (g_free);
+#ifdef ENABLE_EXTERNAL_APPSTREAM
+       g_autoptr(GSettings) settings = g_settings_new ("org.gnome.software");
+#endif
+       g_autofree gchar *state_cache_dir = NULL;
+       g_autofree gchar *state_lib_dir = NULL;
+
+       /* add search paths */
+       gs_add_appstream_catalog_location (appstream_data_dirs, DATADIR);
+
+       state_cache_dir = g_build_filename (LOCALSTATEDIR, "cache", NULL);
+       gs_add_appstream_catalog_location (appstream_data_dirs, state_cache_dir);
+       state_lib_dir = g_build_filename (LOCALSTATEDIR, "lib", NULL);
+       gs_add_appstream_catalog_location (appstream_data_dirs, state_lib_dir);
+
+#ifdef ENABLE_EXTERNAL_APPSTREAM
+       /* check for the corresponding setting */
+       if (!g_settings_get_boolean (settings, "external-appstream-system-wide")) {
+               g_autofree gchar *user_catalog_path = NULL;
+               g_autofree gchar *user_catalog_old_path = NULL;
+
+               /* migrate data paths */
+               user_catalog_path = g_build_filename (g_get_user_data_dir (), "swcatalog", NULL);
+               user_catalog_old_path = g_build_filename (g_get_user_data_dir (), "app-info", NULL);
+               if (g_file_test (user_catalog_old_path, G_FILE_TEST_IS_DIR) &&
+                   !g_file_test (user_catalog_path, G_FILE_TEST_IS_DIR)) {
+                       g_debug ("Migrating external AppStream user location.");
+                       if (g_rename (user_catalog_old_path, user_catalog_path) == 0) {
+                               g_autofree gchar *user_catalog_xml_path = NULL;
+                               g_autofree gchar *user_catalog_xml_old_path = NULL;
+
+                               user_catalog_xml_path = g_build_filename (user_catalog_path, "xml", NULL);
+                               user_catalog_xml_old_path = g_build_filename (user_catalog_path, "xmls", 
NULL);
+                               if (g_file_test (user_catalog_xml_old_path, G_FILE_TEST_IS_DIR)) {
+                                       if (g_rename (user_catalog_xml_old_path, user_catalog_xml_path) != 0)
+                                               g_warning ("Unable to migrate external XML data location from 
'%s' to '%s': %s",
+                                                       user_catalog_xml_old_path, user_catalog_xml_path, 
g_strerror (errno));
+                               }
+                       } else {
+                               g_warning ("Unable to migrate external data location from '%s' to '%s': %s",
+                                          user_catalog_old_path, user_catalog_path, g_strerror (errno));
+                       }
+               }
+
+               /* add modern locations only */
+               g_ptr_array_add (appstream_data_dirs,
+                               g_build_filename (user_catalog_path, "xml", NULL));
+               g_ptr_array_add (appstream_data_dirs,
+                               g_build_filename (user_catalog_path, "yaml", NULL));
+       }
+#endif
+
+       /* Add the normal system directories if the installation prefix
+        * is different from normal — typically this happens when doing
+        * development builds. It’s useful to still list the system apps
+        * during development. */
+       if (g_strcmp0 (DATADIR, "/usr/share") != 0)
+               gs_add_appstream_catalog_location (appstream_data_dirs, "/usr/share");
+       if (g_strcmp0 (LOCALSTATEDIR, "/var") != 0) {
+               gs_add_appstream_catalog_location (appstream_data_dirs, "/var/cache");
+               gs_add_appstream_catalog_location (appstream_data_dirs, "/var/lib");
+       }
+
+       return appstream_data_dirs;
+}
+
 void
 gs_appstream_component_add_keyword (XbBuilderNode *component, const gchar *str)
 {
diff --git a/lib/gs-appstream.h b/lib/gs-appstream.h
index 59da0151a..87b48857c 100644
--- a/lib/gs-appstream.h
+++ b/lib/gs-appstream.h
@@ -69,6 +69,7 @@ gboolean       gs_appstream_load_desktop_files        (XbBuilder      *builder,
                                                         gboolean       *out_any_loaded,
                                                         GCancellable   *cancellable,
                                                         GError         **error);
+GPtrArray      *gs_appstream_get_appstream_data_dirs   (void);
 void            gs_appstream_component_add_extra_info  (XbBuilderNode  *component);
 void            gs_appstream_component_add_keyword     (XbBuilderNode  *component,
                                                         const gchar    *str);
diff --git a/plugins/core/gs-plugin-appstream.c b/plugins/core/gs-plugin-appstream.c
index e0d5a75b1..0c49146cb 100644
--- a/plugins/core/gs-plugin-appstream.c
+++ b/plugins/core/gs-plugin-appstream.c
@@ -10,7 +10,6 @@
 #include <config.h>
 
 #include <glib/gi18n.h>
-#include <glib/gstdio.h>
 #include <errno.h>
 #include <gnome-software.h>
 #include <xmlb.h>
@@ -488,42 +487,6 @@ gs_plugin_appstream_load_appstream (GsPluginAppstream  *self,
        return TRUE;
 }
 
-static void
-gs_add_appstream_catalog_location (GPtrArray *locations, const gchar *root)
-{
-       g_autofree gchar *catalog_path = NULL;
-       g_autofree gchar *catalog_legacy_path = NULL;
-       gboolean ignore_legacy_path = FALSE;
-
-       catalog_path = g_build_filename (root, "swcatalog", NULL);
-       catalog_legacy_path = g_build_filename (root, "app-info", NULL);
-
-       /* ignore compatibility symlink if one exists, so we don't scan the same location twice */
-       if (g_file_test (catalog_legacy_path, G_FILE_TEST_IS_SYMLINK)) {
-               g_autofree gchar *link_target = g_file_read_link (catalog_legacy_path, NULL);
-               if (link_target != NULL) {
-                       if (g_strcmp0 (link_target, catalog_path) == 0) {
-                               ignore_legacy_path = TRUE;
-                               g_debug ("Ignoring legacy AppStream catalog location '%s'.", 
catalog_legacy_path);
-                       }
-               }
-       }
-
-       g_ptr_array_add (locations,
-                        g_build_filename (catalog_path, "xml", NULL));
-       g_ptr_array_add (locations,
-                        g_build_filename (catalog_path, "yaml", NULL));
-
-       if (!ignore_legacy_path) {
-               g_ptr_array_add (locations,
-                                g_build_filename (catalog_legacy_path, "xml", NULL));
-               g_ptr_array_add (locations,
-                                g_build_filename (catalog_legacy_path, "xmls", NULL));
-               g_ptr_array_add (locations,
-                                g_build_filename (catalog_legacy_path, "yaml", NULL));
-       }
-}
-
 static void
 gs_add_appstream_metainfo_location (GPtrArray *locations, const gchar *root)
 {
@@ -546,7 +509,7 @@ gs_plugin_appstream_check_silo (GsPluginAppstream  *self,
        g_autoptr(GRWLockReaderLocker) reader_locker = NULL;
        g_autoptr(GRWLockWriterLocker) writer_locker = NULL;
        g_autoptr(GPtrArray) parent_appdata = g_ptr_array_new_with_free_func (g_free);
-       g_autoptr(GPtrArray) parent_appstream = g_ptr_array_new_with_free_func (g_free);
+       g_autoptr(GPtrArray) parent_appstream = NULL;
        const gchar *const *locales = g_get_language_names ();
        g_autoptr(GMainContext) old_thread_default = NULL;
 
@@ -603,69 +566,20 @@ gs_plugin_appstream_check_silo (GsPluginAppstream  *self,
                xb_builder_fixup_set_max_depth (fixup2, 2);
                xb_builder_source_add_fixup (source, fixup2);
                xb_builder_import_source (builder, source);
-       } else {
-               g_autofree gchar *state_cache_dir = NULL;
-               g_autofree gchar *state_lib_dir = NULL;
 
+               /* Nothing to watch in the tests */
+               parent_appstream = g_ptr_array_new_with_free_func (g_free);
+       } else {
                /* add search paths */
-               gs_add_appstream_catalog_location (parent_appstream, DATADIR);
+               parent_appstream = gs_appstream_get_appstream_data_dirs ();
                gs_add_appstream_metainfo_location (parent_appdata, DATADIR);
 
-               state_cache_dir = g_build_filename (LOCALSTATEDIR, "cache", NULL);
-               gs_add_appstream_catalog_location (parent_appstream, state_cache_dir);
-               state_lib_dir = g_build_filename (LOCALSTATEDIR, "lib", NULL);
-               gs_add_appstream_catalog_location (parent_appstream, state_lib_dir);
-
-#ifdef ENABLE_EXTERNAL_APPSTREAM
-               /* check for the corresponding setting */
-               if (!g_settings_get_boolean (self->settings, "external-appstream-system-wide")) {
-                       g_autofree gchar *user_catalog_path = NULL;
-                       g_autofree gchar *user_catalog_old_path = NULL;
-
-                       /* migrate data paths */
-                       user_catalog_path = g_build_filename (g_get_user_data_dir (), "swcatalog", NULL);
-                       user_catalog_old_path = g_build_filename (g_get_user_data_dir (), "app-info", NULL);
-                       if (g_file_test (user_catalog_old_path, G_FILE_TEST_IS_DIR) &&
-                           !g_file_test (user_catalog_path, G_FILE_TEST_IS_DIR)) {
-                               g_debug ("Migrating external AppStream user location.");
-                               if (g_rename (user_catalog_old_path, user_catalog_path) == 0) {
-                                       g_autofree gchar *user_catalog_xml_path = NULL;
-                                       g_autofree gchar *user_catalog_xml_old_path = NULL;
-
-                                       user_catalog_xml_path = g_build_filename (user_catalog_path, "xml", 
NULL);
-                                       user_catalog_xml_old_path = g_build_filename (user_catalog_path, 
"xmls", NULL);
-                                       if (g_file_test (user_catalog_xml_old_path, G_FILE_TEST_IS_DIR)) {
-                                               if (g_rename (user_catalog_xml_old_path, 
user_catalog_xml_path) != 0)
-                                                       g_warning ("Unable to migrate external XML data 
location from '%s' to '%s': %s",
-                                                               user_catalog_xml_old_path, 
user_catalog_xml_path, g_strerror (errno));
-                                       }
-                               } else {
-                                       g_warning ("Unable to migrate external data location from '%s' to 
'%s': %s",
-                                                  user_catalog_old_path, user_catalog_path, g_strerror 
(errno));
-                               }
-
-                       }
-
-                       /* add modern locations only */
-                       g_ptr_array_add (parent_appstream,
-                                       g_build_filename (user_catalog_path, "xml", NULL));
-                       g_ptr_array_add (parent_appstream,
-                                       g_build_filename (user_catalog_path, "yaml", NULL));
-               }
-#endif
-
                /* Add the normal system directories if the installation prefix
                 * is different from normal — typically this happens when doing
                 * development builds. It’s useful to still list the system apps
                 * during development. */
-               if (g_strcmp0 (DATADIR, "/usr/share") != 0) {
-                       gs_add_appstream_catalog_location (parent_appstream, "/usr/share");
+               if (g_strcmp0 (DATADIR, "/usr/share") != 0)
                        gs_add_appstream_metainfo_location (parent_appdata, "/usr/share");
-               }
-               if (g_strcmp0 (LOCALSTATEDIR, "/var") != 0) {
-                       gs_add_appstream_catalog_location (parent_appstream, "/var/cache");
-                       gs_add_appstream_catalog_location (parent_appstream, "/var/lib");
-               }
 
                /* import all files */
                for (guint i = 0; i < parent_appstream->len; i++) {


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