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-rw-r--r--builtin/read-tree.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 73c89ed15b..df6c4c8819 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -104,8 +104,8 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
struct unpack_trees_options opts;
int prefix_set = 0;
const struct option read_tree_options[] = {
- { OPTION_CALLBACK, 0, "index-output", NULL, "FILE",
- "write resulting index to <FILE>",
+ { OPTION_CALLBACK, 0, "index-output", NULL, "file",
+ "write resulting index to <file>",
PARSE_OPT_NONEG, index_output_cb },
OPT_SET_INT(0, "empty", &read_empty,
"only empty the index", 1),
@@ -130,6 +130,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
PARSE_OPT_NONEG, exclude_per_directory_cb },
OPT_SET_INT('i', NULL, &opts.index_only,
"don't check the working tree after merging", 1),
+ OPT__DRY_RUN(&opts.dry_run, "don't update the index or the work tree"),
OPT_SET_INT(0, "no-sparse-checkout", &opts.skip_sparse_checkout,
"skip applying sparse checkout filter", 1),
OPT_SET_INT(0, "debug-unpack", &opts.debug_unpack,
@@ -219,7 +220,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
if (unpack_trees(nr_trees, t, &opts))
return 128;
- if (opts.debug_unpack)
+ if (opts.debug_unpack || opts.dry_run)
return 0; /* do not write the index out */
/*