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authorLibravatar Junio C Hamano <gitster@pobox.com>2010-09-29 13:49:18 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2010-09-29 13:49:18 -0700
commit2a1be3f8c41a4eefa8842d01d246ef8111245414 (patch)
tree4db574496c83633746040d89080ae4d7c2c14641
parentMerge branch 'rr/format-patch-count-without-merges' (diff)
parentread-tree: deprecate syntax without tree-ish args (diff)
downloadtgif-2a1be3f8c41a4eefa8842d01d246ef8111245414.tar.xz
Merge branch 'jk/read-tree-empty'
* jk/read-tree-empty: read-tree: deprecate syntax without tree-ish args
-rw-r--r--Documentation/git-read-tree.txt6
-rw-r--r--builtin/read-tree.c10
2 files changed, 14 insertions, 2 deletions
diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt
index 2e78da448f..e88e9c2d55 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 9ad1e66916..eb1e3e7467 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)