read-tree: note about dropping split-index mode or index version

diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 1a6122d3ae29609c30c26959fbb1ff799e13a4b2..8102aaa9248d55055761f9899903cac2a2c7cc1e 100644 (file)
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -11,6 +11,7 @@
 #include "parse-options.h"
 #include "diff.h"
 #include "revision.h"
+#include "split-index.h"
 
 #define DO_REVS                1
 #define DO_NOREV       2
@@ -775,6 +776,15 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                                : "false");
                                continue;
                        }
+                       if (!strcmp(arg, "--shared-index-path")) {
+                               if (read_cache() < 0)
+                                       die(_("Could not read the index"));
+                               if (the_index.split_index) {
+                                       const unsigned char *sha1 = the_index.split_index->base_sha1;
+                                       puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
+                               }
+                               continue;
+                       }
                        if (starts_with(arg, "--since=")) {
                                show_datestring("--max-age=", arg+8);
                                continue;