src/bootchooser: support the changed output of efibootmgr 18

Since efibootmgr 18, the default output of `efibootmgr` is now more
verbose [1], which breaks the assumptions made by RAUC in regards to
parsing the output. This issue is also affecting others [2].

Fix the parsing logic by unconditionally removing anything after a tab
in the detected name part of the boot entry, so that the unused data
part is discarded.
Emit a debug message for each found boot entry, as this helps in
detecting issues in the future.

[1] rhboot/efibootmgr@8ec3e9d
[2] rhboot/efibootmgr#169

Signed-off-by: David Runge <[email protected]>

src/bootchooser.c

@@ -1159,11 +1159,20 @@ static gboolean efi_bootorder_get(GList **bootorder_entries, GList **all_entries
 	}
 
 	while (g_match_info_matches(match)) {
+		gchar *tab_point = NULL;
 		efi_bootentry *entry = g_new0(efi_bootentry, 1);
 		entry->num = g_match_info_fetch(match, 1);
 		entry->name = g_match_info_fetch(match, 2);
+
+		/* Remove anything after a tab, as it is most likely path
+		 * information which we don't need. */
+		tab_point = strchr(entry->name, '\t');
+		if (tab_point)
+			*tab_point = '\0';
+
 		entries = g_list_append(entries, entry);
 		g_match_info_next(match, NULL);
+		g_debug("Detected EFI boot entry %s: %s", entry->num, entry->name);
 	}
 
 	g_clear_pointer(&regex, g_regex_unref);