datetime: Add test application for missing TZ pixmaps

https://bugzilla.gnome.org/show_bug.cgi?id=630261

panels/datetime/Makefile.am

@@ -68,6 +68,18 @@ INCLUDES = 						\
 	-DDATADIR="\"$(uidir)\""			\
 	$(NULL)
 
+noinst_PROGRAMS = test-timezone
+
+test_timezone_SOURCES = test-timezone.c tz.c tz.h
+test_timezone_LDADD = $(PANEL_LIBS)
+test_timezone_CFLAGS = $(PANEL_CFLAGS)
+
+all: check
+
+check: test-timezone
+	# FIXME remove "|| :" when we have all the necessary pixmaps
+	$(builddir)/test-timezone $(srcdir)/data || :
+
 ccpanelsdir = $(PANELS_DIR)
 ccpanels_LTLIBRARIES = libdate_time.la
 

panels/datetime/test-timezone.c

@@ -0,0 +1,47 @@
+#include "tz.h"
+
+int main (int argc, char **argv)
+{
+	TzDB *db;
+	GPtrArray *locs;
+	guint i;
+	char *pixmap_dir;
+	int retval = 0;
+
+	if (argc == 2) {
+		pixmap_dir = g_strdup (argv[1]);
+	} else if (argc == 1) {
+		pixmap_dir = g_strdup ("data/");
+	} else {
+		g_message ("Usage: %s [PIXMAP DIRECTORY]", argv[0]);
+		return 1;
+	}
+
+	db = tz_load_db ();
+	locs = tz_get_locations (db);
+	for (i = 0; i < locs->len ; i++) {
+		TzLocation *loc = locs->pdata[i];
+		TzInfo *info;
+		char *filename, *path;
+		gdouble selected_offset;
+
+		info = tz_info_from_location (loc);
+		selected_offset = tz_location_get_utc_offset (loc)
+			/ (60.0*60.0) + ((info->daylight) ? -1.0 : 0.0);
+
+		filename = g_strdup_printf ("timezone_%g.png", selected_offset);
+		path = g_build_filename (pixmap_dir, filename, NULL);
+
+		if (g_file_test (path, G_FILE_TEST_IS_REGULAR) == FALSE) {
+			g_message ("File '%s' missing for zone '%s'", filename, loc->zone);
+			retval = 1;
+		}
+
+		g_free (filename);
+		g_free (path);
+	}
+	tz_db_free (db);
+	g_free (pixmap_dir);
+
+	return retval;
+}