Enable detection of when Viking is run for the very first time.

[andy/viking.git] / src / globals.c

diff --git a/src/globals.c b/src/globals.c
index 6a921ebdaab4b0ae8069f391c0c991f81dc0621c..8abc2fe88ca2ee101298a24045404bc8532392c6 100644 (file)
--- a/src/globals.c
+++ b/src/globals.c
@@ -32,6 +32,7 @@
 #include "globals.h"
 #include "preferences.h"
 #include "math.h"
+#include "dir.h"
 
 gboolean vik_debug = FALSE;
 gboolean vik_verbose = FALSE;
@@ -124,6 +125,34 @@ static VikLayerParam startup_prefs[] = {
 };
 /* End of Options static stuff */
 
+/**
+ * Detect when Viking is run for the very first time
+ * Call this very early in the startup sequence to ensure subsequent correct results
+ * The return value is cached, since later on the test will no longer be true
+ */
+gboolean a_vik_very_first_run ()
+{
+  static gboolean vik_very_first_run_known = FALSE;
+  static gboolean vik_very_first_run = FALSE;
+
+  // use cached result if available
+  if ( vik_very_first_run_known )
+    return vik_very_first_run;
+
+  gchar *dir = a_get_viking_dir_no_create();
+  // NB: will need extra logic if default dir gets changed e.g. from ~/.viking to ~/.config/viking
+  if ( dir ) {
+    // If directory exists - Viking has been run before
+    vik_very_first_run = ! g_file_test ( dir, G_FILE_TEST_EXISTS );
+    g_free ( dir );
+  }
+  else
+    vik_very_first_run = TRUE;
+  vik_very_first_run_known = TRUE;
+
+  return vik_very_first_run;
+}
+
 void a_vik_preferences_init ()
 {
   g_debug ( "VIKING VERSION as number: %d", viking_version_to_number (VIKING_VERSION) );