[polari/wip/fmuellner/tracker: 4/15] tool: Add polari-log-tool helper tool



commit bdbb172371c263d8aca6c518b1258c4fad5fef1e
Author: Florian Müllner <fmuellner gnome org>
Date:   Sun Jul 23 03:15:57 2017 +0200

    tool: Add polari-log-tool helper tool
    
    For debugging, it's helpful to be able to easily run queries against
    Polari's DB, so add a small CLI tool to allow that.

 src/meson.build       |   8 +++-
 src/polari-log-tool.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 116 insertions(+), 1 deletion(-)
---
diff --git a/src/meson.build b/src/meson.build
index c71156b..97ffa63 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -101,10 +101,16 @@ libpolari = shared_library('polari-1.0', libsources + lib_nongir_sources + lib_r
 
 libpolari_dep = declare_dependency(
   include_directories: include_directories('lib'),
-  dependencies: [gio, gtk3, telepathy_glib],
+  dependencies: [gio, gtk3, telepathy_glib, tracker],
   link_with: libpolari
 )
 
+polari_log_tool = executable('polari-log-tool', 'polari-log-tool.c',
+  dependencies: libpolari_dep,
+  install_rpath: pkglibdir,
+  install: true
+)
+
 gnome.generate_gir(libpolari,
   sources: libsources,
   nsversion: '1.0',
diff --git a/src/polari-log-tool.c b/src/polari-log-tool.c
new file mode 100644
index 0000000..57a7f61
--- /dev/null
+++ b/src/polari-log-tool.c
@@ -0,0 +1,109 @@
+/* polari-tpl-importer.c
+ *
+ * Copyright (C) 2017 Florian Müllner <fmuellner gnome org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "lib/polari-util.h"
+
+static guint status = 0;
+
+static int
+handle_query (int argc,
+              char *argv[])
+{
+  TrackerSparqlConnection *connection;
+  TrackerSparqlCursor *cursor;
+  GError *error = NULL;
+  char *sparql;
+
+  connection = polari_util_get_tracker_connection (NULL);
+
+  sparql = argv[1];
+
+  cursor = tracker_sparql_connection_query (connection, sparql, NULL, &error);
+
+  if (error)
+    {
+      g_printerr ("%s", error->message);
+      g_error_free (error);
+      return 1;
+    }
+
+  while (tracker_sparql_cursor_next (cursor, NULL, NULL))
+    {
+      int i;
+
+      for (i = 0; i < tracker_sparql_cursor_get_n_columns (cursor); i++)
+        {
+          switch (tracker_sparql_cursor_get_value_type (cursor, i))
+            {
+            case TRACKER_SPARQL_VALUE_TYPE_STRING:
+            case TRACKER_SPARQL_VALUE_TYPE_DATETIME:
+            case TRACKER_SPARQL_VALUE_TYPE_URI:
+              g_print ("%s\t", tracker_sparql_cursor_get_string (cursor, i, NULL));
+              break;
+            case TRACKER_SPARQL_VALUE_TYPE_INTEGER:
+              g_print ("%ld\t", tracker_sparql_cursor_get_integer (cursor, i));
+              break;
+            case TRACKER_SPARQL_VALUE_TYPE_DOUBLE:
+              g_print ("%.3f\t", tracker_sparql_cursor_get_double (cursor, i));
+              break;
+            case TRACKER_SPARQL_VALUE_TYPE_BOOLEAN:
+              g_print ("%s\t", tracker_sparql_cursor_get_boolean (cursor, i) ? "true" : "false");
+            case TRACKER_SPARQL_VALUE_TYPE_BLANK_NODE:
+            case TRACKER_SPARQL_VALUE_TYPE_UNBOUND:
+              g_print ("\t");
+              break;
+            }
+          g_print ("\n");
+        }
+    }
+
+  return status;
+}
+
+static void
+usage ()
+{
+  g_printerr ("Usage:\n");
+  g_printerr ("  polari-log-tool COMMAND ARGS\n");
+  g_printerr ("\n");
+  g_printerr ("Commands:\n");
+  g_printerr ("  query          Run a sparql query\n");
+}
+
+int
+main (int   argc,
+      char *argv[])
+{
+  const char *command;
+
+  g_set_prgname ("polari-log-tool");
+  g_set_application_name ("Polari Log Tool");
+
+  if (argc < 2)
+    {
+      usage ();
+      return 1;
+    }
+
+  command = argv[1];
+  argc -= 1;
+  argv += 1;
+
+  if (g_str_equal (command, "query"))
+    return handle_query (argc, argv);
+}


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