[gnome-todo] todo-txt: create source file if it is deleted

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 2369228f4be7688a361ec20c210868c3c381aa84
Author: Rohit Kaushik <f2015115 goa bits-pilani ac in>
Date:   Mon Mar 13 19:58:44 2017 +0530

    todo-txt: create source file if it is deleted
    
    This fixes the issue if the source_file that is being used is
    deleted by the user when To Do is not running, in which case
    earlier would have given an error as although the source contains
    the uri to the file but the file is now present at the location.
    
    The fix is to check if file exists and if not create one.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779979

 plugins/todo-txt/gtd-plugin-todo-txt.c |   40 ++++++++++++++++++++++++++++++++
 1 files changed, 40 insertions(+), 0 deletions(-)
---
diff --git a/plugins/todo-txt/gtd-plugin-todo-txt.c b/plugins/todo-txt/gtd-plugin-todo-txt.c
index c48bc22..327da68 100644
--- a/plugins/todo-txt/gtd-plugin-todo-txt.c
+++ b/plugins/todo-txt/gtd-plugin-todo-txt.c
@@ -162,6 +162,7 @@ gtd_plugin_todo_txt_activate (GtdActivatable *activatable)
   GtdPluginTodoTxt *self;
   GtdProviderTodoTxt *provider;
   gchar *source;
+  GError *error = NULL;
 
   self = GTD_PLUGIN_TODO_TXT (activatable);
   source = g_settings_get_string (self->settings, "file");
@@ -179,6 +180,24 @@ gtd_plugin_todo_txt_activate (GtdActivatable *activatable)
       self->source_file = g_file_new_for_uri (source);
     }
 
+  if (!g_file_query_exists (self->source_file, NULL))
+    {
+      g_file_create (self->source_file,
+                     G_FILE_CREATE_NONE,
+                     NULL,
+                     &error);
+
+      if (error)
+        {
+          gtd_manager_emit_error_message (gtd_manager_get_default (),
+                                          _("Cannot create Todo.txt file"),
+                                          error->message);
+
+          g_clear_error (&error);
+          return;
+        }
+    }
+
   provider = gtd_provider_todo_txt_new (self->source_file);
 
   self->providers = g_list_append (self->providers, provider);
@@ -187,6 +206,7 @@ gtd_plugin_todo_txt_activate (GtdActivatable *activatable)
   gtd_plugin_todo_txt_load_source_monitor (self);
 
   g_free (source);
+  g_clear_error (&error);
 }
 
 static void
@@ -244,6 +264,7 @@ gtd_plugin_todo_txt_source_changed_finished_cb (GtdPluginTodoTxt *self)
 {
   GtdProviderTodoTxt *provider;
   gchar *source;
+  GError *error = NULL;
 
   source = g_settings_get_string (self->settings, "file");
 
@@ -260,6 +281,24 @@ gtd_plugin_todo_txt_source_changed_finished_cb (GtdPluginTodoTxt *self)
       self->source_file = g_file_new_for_uri (source);
     }
 
+  if (!g_file_query_exists (self->source_file, NULL))
+    {
+      g_file_create (self->source_file,
+                     G_FILE_CREATE_NONE,
+                     NULL,
+                     &error);
+
+      if (error)
+        {
+          gtd_manager_emit_error_message (gtd_manager_get_default (),
+                                          _("Cannot create Todo.txt file"),
+                                          error->message);
+
+          g_clear_error (&error);
+          return;
+        }
+    }
+
   provider = gtd_provider_todo_txt_new (self->source_file);
   self->providers = g_list_append (self->providers, provider);
 
@@ -268,6 +307,7 @@ gtd_plugin_todo_txt_source_changed_finished_cb (GtdPluginTodoTxt *self)
   g_signal_emit_by_name (self, "provider-added", provider);
 
   g_free (source);
+  g_clear_error (&error);
 }
 
 static void