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authorcharles kerr <charlesk@canonical.com>2016-01-01 12:14:40 -0600
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2021-08-28 10:17:14 +0200
commitc5f9fe4e21d24581aad7bfd7b73fb060aaf440ff (patch)
tree5a20be0a3367905a42a42a489ad548ee5d0ee9d4 /src/datafiles.c
parent522fdc6abbfee52dec5c6b0194cf87ffcc0f3dcd (diff)
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add an XDG friendly way of finding app-specific datafiles
Diffstat (limited to 'src/datafiles.c')
-rw-r--r--src/datafiles.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/datafiles.c b/src/datafiles.c
new file mode 100644
index 0000000..dba8048
--- /dev/null
+++ b/src/datafiles.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2015 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
+ *
+ * Authors:
+ * Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include "datafiles.h"
+
+static const gchar*
+get_directory_prefix_for_type (DatafileType type)
+{
+ switch (type)
+ {
+ case DATAFILE_TYPE_SOUND:
+ return "sounds";
+
+ default:
+ g_critical("unknown type");
+ return "";
+ }
+}
+
+static gchar*
+test_directory_for_file(const char* dir, DatafileType type, const char* basename)
+{
+ gchar* filename = g_build_filename(dir,
+ GETTEXT_PACKAGE,
+ get_directory_prefix_for_type(type),
+ basename,
+ NULL);
+
+ g_debug("looking for \"%s\" at \"%s\"", basename, filename);
+ if (g_file_test(filename, G_FILE_TEST_EXISTS))
+ return filename;
+
+ g_free(filename);
+ return NULL;
+}
+
+gchar*
+datafile_find(DatafileType type, const char * basename)
+{
+ gchar * filename;
+ const gchar * user_data_dir;
+ const gchar * const * system_data_dirs;
+ gsize i;
+
+ user_data_dir = g_get_user_data_dir();
+ if ((filename = test_directory_for_file(user_data_dir, type, basename)))
+ return filename;
+
+ system_data_dirs = g_get_system_data_dirs();
+ for (i=0; system_data_dirs && system_data_dirs[i]; ++i)
+ if ((filename = test_directory_for_file(system_data_dirs[i], type, basename)))
+ return filename;
+
+ return NULL;
+}