Say when --track is useful in the git-checkout docs.

diff --git a/builtin-checkout-index.c b/builtin-checkout-index.c
index afe4b0e4520f47f1dace1383bfc2b364b1b1def0..75377b9cab75ac75c6d5d7f79fdcf64bdb27cff2 100644 (file)
--- a/builtin-checkout-index.c
+++ b/builtin-checkout-index.c
@@ -36,6 +36,7 @@
  * of "-a" causing problems (not possible in the above example,
  * but get used to it in scripting!).
  */
+#include "builtin.h"
 #include "cache.h"
 #include "strbuf.h"
 #include "quote.h"
@@ -202,10 +203,7 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix)
                if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) {
                        state.refresh_cache = 1;
                        if (newfd < 0)
-                               newfd = hold_lock_file_for_update
-                                       (&lock_file, get_index_file(), 1);
-                       if (newfd < 0)
-                               die("cannot open index.lock file.");
+                               newfd = hold_locked_index(&lock_file, 1);
                        continue;
                }
                if (!strcmp(arg, "-z")) {
@@ -302,7 +300,7 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix)
 
        if (0 <= newfd &&
            (write_cache(newfd, active_cache, active_nr) ||
-            close(newfd) || commit_lock_file(&lock_file)))
+            close(newfd) || commit_locked_index(&lock_file)))
                die("Unable to write new index file");
        return 0;
 }