1 files changed, 84 insertions, 0 deletions
diff --git a/panels/common/cc-os-release.c b/panels/common/cc-os-release.c
new file mode 100644
index 0000000..4f04da9
--- /dev/null
+++ b/panels/common/cc-os-release.c
@@ -0,0 +1,84 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2019 Canonical Ltd.
+ *
+ * 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 2 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 "cc-os-release.h"
+
+gchar *
+cc_os_release_get_value (const gchar *key)
+{
+  g_autoptr(GHashTable) values = NULL;
+
+  values = cc_os_release_get_values ();
+  if (values == NULL)
+    return NULL;
+
+  return g_strdup (g_hash_table_lookup (values, key));
+}
+
+GHashTable *
+cc_os_release_get_values (void)
+{
+  g_autoptr(GHashTable) values = NULL;
+  g_autofree gchar *buffer = NULL;
+  g_auto(GStrv) lines = NULL;
+  int i;
+  g_autoptr(GError) error = NULL;
+
+  values = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+  if (!g_file_get_contents ("/etc/os-release", &buffer, NULL, &error))
+    {
+       if (!g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
+         return NULL;
+
+       if (!g_file_get_contents ("/usr/lib/os-release", &buffer, NULL, NULL))
+         return NULL;
+    }
+
+  /* Default values in spec */
+  g_hash_table_insert (values, g_strdup ("NAME"), g_strdup ("Linux"));
+  g_hash_table_insert (values, g_strdup ("ID"), g_strdup ("Linux"));
+  g_hash_table_insert (values, g_strdup ("PRETTY_NAME"), g_strdup ("Linux"));
+
+  lines = g_strsplit (buffer, "\n", -1);
+  for (i = 0; lines[i] != NULL; i++)
+    {
+      gchar *line = lines[i];
+      g_auto(GStrv) tokens = NULL;
+      const gchar *key, *value;
+      g_autofree gchar *unquoted_value = NULL;
+
+      /* Skip comments */
+      if (g_str_has_prefix (line, "#"))
+        continue;
+
+      tokens = g_strsplit (line, "=", 2);
+      if (g_strv_length (tokens) < 2)
+        continue;
+      key = tokens[0];
+      value = tokens[1];
+      unquoted_value = g_shell_unquote (value, NULL);
+      if (unquoted_value != NULL)
+        value = unquoted_value;
+
+      g_hash_table_insert (values, g_strdup (key), g_strdup (value));
+    }
+
+  return g_steal_pointer (&values);
+}