diff options
| -rw-r--r-- | Documentation/git-read-tree.txt | 6 | ||||
| -rw-r--r-- | builtin/read-tree.c | 10 |
2 files changed, 14 insertions, 2 deletions
diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index 2e78da448..e88e9c2d5 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -11,7 +11,7 @@ SYNOPSIS 'git read-tree' [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] [-u [--exclude-per-directory=<gitignore>] | -i]] [--index-output=<file>] [--no-sparse-checkout] - <tree-ish1> [<tree-ish2> [<tree-ish3>]] + (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]]) DESCRIPTION @@ -114,6 +114,10 @@ OPTIONS Disable sparse checkout support even if `core.sparseCheckout` is true. +--empty:: + Instead of reading tree object(s) into the index, just empty + it. + <tree-ish#>:: The id of the tree object(s) to be read/merged. diff --git a/builtin/read-tree.c b/builtin/read-tree.c index 9ad1e6691..eb1e3e746 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -16,6 +16,7 @@ #include "resolve-undo.h" static int nr_trees; +static int read_empty; static struct tree *trees[MAX_UNPACK_TREES]; static int list_tree(unsigned char *sha1) @@ -32,7 +33,7 @@ static int list_tree(unsigned char *sha1) } static const char * const read_tree_usage[] = { - "git read-tree [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] [-u [--exclude-per-directory=<gitignore>] | -i]] [--no-sparse-checkout] [--index-output=<file>] <tree-ish1> [<tree-ish2> [<tree-ish3>]]", + "git read-tree [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] [-u [--exclude-per-directory=<gitignore>] | -i]] [--no-sparse-checkout] [--index-output=<file>] (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]])", NULL }; @@ -106,6 +107,8 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { 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), OPT__VERBOSE(&opts.verbose_update), OPT_GROUP("Merging"), OPT_SET_INT('m', NULL, &opts.merge, @@ -166,6 +169,11 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) die("failed to unpack tree object %s", arg); stage++; } + if (nr_trees == 0 && !read_empty) + warning("read-tree: emptying the index with no arguments is deprecated; use --empty"); + else if (nr_trees > 0 && read_empty) + die("passing trees as arguments contradicts --empty"); + if (1 < opts.index_only + opts.update) die("-u and -i at the same time makes no sense"); if ((opts.update||opts.index_only) && !opts.merge) |