forked from pool/tracker
Accepting request 931183 from GNOME:Next
OBS-URL: https://build.opensuse.org/request/show/931183 OBS-URL: https://build.opensuse.org/package/show/GNOME:Factory/tracker?expand=0&rev=227
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174
5883cebf8d7b2948bcb808162e78a4629ab3315c.patch
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174
5883cebf8d7b2948bcb808162e78a4629ab3315c.patch
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@ -0,0 +1,174 @@
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From 5883cebf8d7b2948bcb808162e78a4629ab3315c Mon Sep 17 00:00:00 2001
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From: Carlos Garnacho <carlosg@gnome.org>
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Date: Mon, 8 Nov 2021 13:27:19 +0100
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Subject: [PATCH] libtracker-sparql: Handle query cancellation on
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TrackerEndpointDBus
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Since the cursor contents are handed via a pipe FD, detect the situation
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where the other end of the pipe gets closed (say, client died or cancelled
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the operation) and cancel the DBus service side operation as well.
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This avoids these operations from finishing to completion if they are
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going nowhere. Now that each pending query request gets its own cancellable,
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ensure these are also cancelled on TrackerEndpointDBus finalization.
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Fixes: https://gitlab.gnome.org/GNOME/tracker/-/issues/264
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---
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src/libtracker-sparql/tracker-endpoint-dbus.c | 68 ++++++++++++++++---
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1 file changed, 60 insertions(+), 8 deletions(-)
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diff --git a/src/libtracker-sparql/tracker-endpoint-dbus.c b/src/libtracker-sparql/tracker-endpoint-dbus.c
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index 527e3f33a..d022c6f04 100644
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--- a/src/libtracker-sparql/tracker-endpoint-dbus.c
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+++ b/src/libtracker-sparql/tracker-endpoint-dbus.c
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@@ -49,6 +49,7 @@
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#include <gio/gunixinputstream.h>
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#include <gio/gunixoutputstream.h>
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#include <gio/gunixfdlist.h>
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+#include <glib-unix.h>
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static const gchar introspection_xml[] =
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"<node>"
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@@ -86,6 +87,10 @@ typedef struct {
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TrackerEndpointDBus *endpoint;
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GDBusMethodInvocation *invocation;
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GDataOutputStream *data_stream;
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+ GCancellable *global_cancellable;
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+ GCancellable *cancellable;
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+ gulong cancellable_id;
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+ GSource *source;
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} QueryRequest;
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typedef struct {
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@@ -175,6 +180,28 @@ tracker_endpoint_dbus_add_prologue (TrackerEndpointDBus *endpoint_dbus,
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}
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}
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+static gboolean
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+fd_watch_cb (gint fd,
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+ GIOCondition condition,
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+ gpointer user_data)
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+{
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+ QueryRequest *request = user_data;
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+
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+ if ((condition & (G_IO_ERR | G_IO_HUP)) != 0) {
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+ g_cancellable_cancel (request->cancellable);
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+ return G_SOURCE_REMOVE;
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+ }
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+
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+ return G_SOURCE_CONTINUE;
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+}
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+
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+static void
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+propagate_cancelled (GCancellable *cancellable,
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+ GCancellable *connected_cancellable)
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+{
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+ g_cancellable_cancel (connected_cancellable);
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+}
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+
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static QueryRequest *
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query_request_new (TrackerEndpointDBus *endpoint,
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GDBusMethodInvocation *invocation,
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@@ -186,6 +213,21 @@ query_request_new (TrackerEndpointDBus *endpoint,
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request = g_new0 (QueryRequest, 1);
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request->invocation = g_object_ref (invocation);
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request->endpoint = endpoint;
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+ request->global_cancellable = g_object_ref (endpoint->cancellable);
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+ request->cancellable = g_cancellable_new ();
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+ request->cancellable_id =
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+ g_cancellable_connect (request->global_cancellable,
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+ G_CALLBACK (propagate_cancelled),
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+ g_object_ref (request->cancellable),
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+ g_object_unref);
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+
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+ request->source = g_unix_fd_source_new (fd, G_IO_ERR | G_IO_HUP);
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+
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+ g_source_set_callback (request->source,
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+ G_SOURCE_FUNC (fd_watch_cb),
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+ request,
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+ NULL);
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+ g_source_attach (request->source, g_main_context_get_thread_default ());
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stream = g_unix_output_stream_new (fd, TRUE);
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buffered_stream = g_buffered_output_stream_new_sized (stream,
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@@ -204,6 +246,14 @@ query_request_new (TrackerEndpointDBus *endpoint,
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static void
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query_request_free (QueryRequest *request)
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{
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+ g_cancellable_disconnect (request->global_cancellable,
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+ request->cancellable_id);
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+ g_object_unref (request->global_cancellable);
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+
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+ g_source_destroy (request->source);
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+ g_source_unref (request->source);
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+ g_object_unref (request->cancellable);
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+
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g_output_stream_close (G_OUTPUT_STREAM (request->data_stream),
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NULL, NULL);
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@@ -305,7 +355,7 @@ write_cursor (QueryRequest *request,
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values = g_new0 (const char *, n_columns);
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offsets = g_new0 (glong, n_columns);
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- while (tracker_sparql_cursor_next (cursor, NULL, &inner_error)) {
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+ while (tracker_sparql_cursor_next (cursor, request->cancellable, &inner_error)) {
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glong cur_offset = -1;
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if (!g_data_output_stream_put_int32 (request->data_stream, n_columns,
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@@ -397,8 +447,10 @@ finish_query (GObject *source_object,
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TrackerSparqlCursor *cursor = TRACKER_SPARQL_CURSOR (source_object);
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GError *error = NULL;
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- if (!g_task_propagate_boolean (G_TASK (res), &error))
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- g_critical ("Error writing cursor: %s\n", error->message);
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+ if (!g_task_propagate_boolean (G_TASK (res), &error)) {
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+ if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
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+ g_critical ("Error writing cursor: %s\n", error->message);
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+ }
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g_object_unref (cursor);
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g_clear_error (&error);
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@@ -423,7 +475,7 @@ query_cb (GObject *object,
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return;
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}
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- task = g_task_new (cursor, request->endpoint->cancellable, finish_query, NULL);
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+ task = g_task_new (cursor, request->cancellable, finish_query, NULL);
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g_task_set_task_data (task, request, (GDestroyNotify) query_request_free);
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g_task_run_in_thread (task, handle_cursor_reply);
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g_object_unref (task);
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@@ -448,7 +500,7 @@ stmt_execute_cb (GObject *object,
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return;
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}
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- task = g_task_new (cursor, request->endpoint->cancellable, finish_query, NULL);
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+ task = g_task_new (cursor, request->cancellable, finish_query, NULL);
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g_task_set_task_data (task, request, (GDestroyNotify) query_request_free);
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g_task_run_in_thread (task, handle_cursor_reply);
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g_object_unref (task);
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@@ -645,11 +697,11 @@ endpoint_dbus_iface_method_call (GDBusConnection *connection,
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TrackerSparqlStatement *stmt;
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stmt = create_statement (conn, query, arguments,
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- endpoint_dbus->cancellable,
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+ request->cancellable,
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&error);
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if (stmt) {
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tracker_sparql_statement_execute_async (stmt,
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- endpoint_dbus->cancellable,
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+ request->cancellable,
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stmt_execute_cb,
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request);
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/* Statements are single use here... */
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@@ -662,7 +714,7 @@ endpoint_dbus_iface_method_call (GDBusConnection *connection,
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} else {
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tracker_sparql_connection_query_async (conn,
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query,
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- endpoint_dbus->cancellable,
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+ request->cancellable,
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query_cb,
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request);
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}
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--
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GitLab
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@ -1,3 +1,10 @@
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-------------------------------------------------------------------
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Fri Nov 12 20:59:27 UTC 2021 - Bjørn Lie <bjorn.lie@gmail.com>
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- Add 5883cebf8d7b2948bcb808162e78a4629ab3315c.patch:
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libtracker-sparql: Handle query cancellation on
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TrackerEndpointDBus (glgo#GNOME/tracker#264).
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-------------------------------------------------------------------
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Tue Nov 9 08:25:17 UTC 2021 - Alynx Zhou <alynx.zhou@suse.com>
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@ -30,6 +30,8 @@ URL: https://wiki.gnome.org/Projects/Tracker
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Source0: https://download.gnome.org/sources/tracker/3.2/%{name}-%{version}.tar.xz
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# PATCH-FIX-UPSTREAM tracker-fix-actual-0-path-matches.patch bsc#1191207, glgo#GNOME/tracker#337 alynx.zhou@suse.com -- Fix no metadata available when using tracker3 info
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Patch1: tracker-fix-actual-0-path-matches.patch
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# PATCH-FIX-UPSTREAM 5883cebf8d7b2948bcb808162e78a4629ab3315c.patch -- libtracker-sparql: Handle query cancellation on TrackerEndpointDBus
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Patch2: https://gitlab.gnome.org/GNOME/tracker/-/commit/5883cebf8d7b2948bcb808162e78a4629ab3315c.patch
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BuildRequires: asciidoc
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BuildRequires: fdupes
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