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pathspec: add copy_pathspec

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Because free_pathspec wants to free "items" pointer in the pathspec
structure, a simple structure assignment is not enough if you want to
copy an existing pathspec into another.  Freeing the original will
damage the copy unless a deep copy is made.

Note that the strings in pathspec->items->match and the array
pathspec->raw[] are still shared between the original and the copy.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2013-07-14 15:35:27 +07:00
committed by Junio C Hamano
parent f01d9820e7
commit e4d92cdcd9
3 changed files with 16 additions and 6 deletions
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13
builtin/mv.c
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@ -15,8 +15,9 @@ static const char * const builtin_mv_usage[] = {
NULL
};
static const char **copy_pathspec(const char *prefix, const char **pathspec,
int count, int base_name)
static const char **internal_copy_pathspec(const char *prefix,
const char **pathspec,
int count, int base_name)
{
int i;
const char **result = xmalloc((count + 1) * sizeof(const char *));
@ -81,17 +82,17 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
if (read_cache() < 0)
die(_("index file corrupt"));
source = copy_pathspec(prefix, argv, argc, 0);
source = internal_copy_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
dest_path = copy_pathspec(prefix, argv + argc, 1, 0);
dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
destination = copy_pathspec(dest_path[0], argv, argc, 1);
destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = copy_pathspec(dest_path[0], argv, argc, 1);
destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
} else {
if (argc != 1)
die("destination '%s' is not a directory", dest_path[0]);