undef/git-commit-vandalism
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mv: let 'git mv file no-such-dir/' error out

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Git used to trim the trailing slash, and make the command equivalent
to 'git mv file no-such-dir', which created the file no-such-dir
(while the trailing slash explicitly stated that it could only be a
directory).

This patch skips the trailing slash removal for the destination
path.  The path with its trailing slash is passed to rename(2),
which errors out with the appropriate message:

  $ git mv file no-such-dir/
  fatal: renaming 'file' failed: Not a directory

Original-patch-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matthieu Moy 2013-12-03 09:32:04 +01:00 committed by Junio C Hamano
parent a155a5f075
commit c57f6281ff
2 changed files with 45 additions and 7 deletions
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23
builtin/mv.c
View File

@ -16,9 +16,12 @@ static const char * const builtin_mv_usage[] = {
NULL
};
#define DUP_BASENAME 1
#define KEEP_TRAILING_SLASH 2
static const char **internal_copy_pathspec(const char *prefix,
const char **pathspec,
int count, int base_name)
int count, unsigned flags)
{
int i;
const char **result = xmalloc((count + 1) * sizeof(const char *));
@ -27,11 +30,12 @@ static const char **internal_copy_pathspec(const char *prefix,
for (i = 0; i < count; i++) {
int length = strlen(result[i]);
int to_copy = length;
while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
while (!(flags & KEEP_TRAILING_SLASH) &&
to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
to_copy--;
if (to_copy != length || base_name) {
if (to_copy != length || flags & DUP_BASENAME) {
char *it = xmemdupz(result[i], to_copy);
if (base_name) {
if (flags & DUP_BASENAME) {
result[i] = xstrdup(basename(it));
free(it);
} else
@ -87,16 +91,21 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
source = internal_copy_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
dest_path = internal_copy_pathspec(prefix, argv + argc, 1, 0);
/*
* Keep trailing slash, needed to let
* "git mv file no-such-dir/" error out.
*/
dest_path = internal_copy_pathspec(prefix, argv + argc, 1,
KEEP_TRAILING_SLASH);
submodule_gitfile = xcalloc(argc, sizeof(char *));
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = internal_copy_pathspec(dest_path[0], argv, argc, 1);
destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
} else {
if (argc != 1)
die("destination '%s' is not a directory", dest_path[0]);

29
t/t7001-mv.sh
View File

@ -70,6 +70,35 @@ test_expect_success \
rm -f idontexist untracked1 untracked2 \
path0/idontexist path0/untracked1 path0/untracked2 \
.git/index.lock
rmdir path1
test_expect_success \
'moving to absent target with trailing slash' \
'test_must_fail git mv path0/COPYING no-such-dir/ &&
test_must_fail git mv path0/COPYING no-such-dir// &&
git mv path0/ no-such-dir/ &&
test_path_is_dir no-such-dir'
test_expect_success \
'clean up' \
'git reset --hard'
test_expect_success \
'moving to existing untracked target with trailing slash' \
'mkdir path1 &&
git mv path0/ path1/ &&
test_path_is_dir path1/path0/'
test_expect_success \
'moving to existing tracked target with trailing slash' \
'mkdir path2 &&
>path2/file && git add path2/file &&
git mv path1/path0/ path2/ &&
test_path_is_dir path2/path0/'
test_expect_success \
'clean up' \
'git reset --hard'
test_expect_success \
'adding another file' \