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mv: check if <destination> exists in index to handle overwriting

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Originally, moving a sparse file into cone can result in unwarned
overwrite of existing entry. The expected behavior is that if the
<destination> exists in the entry, user should be prompted to supply
a [-f|--force] to carry out the operation, or the operation should
fail.

Add a check mechanism to do that.

Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Shaoxuan Yuan 2022-06-30 10:37:35 +08:00 committed by Junio C Hamano
parent 6645b03ca5
commit 8a26a3915f
2 changed files with 14 additions and 5 deletions
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15
builtin/mv.c
View file

@ -202,11 +202,20 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
bad = _("bad source");
goto act_on_entry;
}
if (!ignore_sparse)
if (!ignore_sparse) {
string_list_append(&only_match_skip_worktree, src);
else
goto act_on_entry;
}
/* Check if dst exists in index */
if (cache_name_pos(dst, strlen(dst)) < 0) {
modes[i] = SPARSE;
goto act_on_entry;
}
if (!force) {
bad = _("destination exists");
goto act_on_entry;
}
modes[i] = SPARSE;
goto act_on_entry;
}
if (!strncmp(src, dst, length) &&

4
t/t7002-mv-sparse-checkout.sh
View file

@ -262,7 +262,7 @@ test_expect_success 'can move out-of-cone file with --sparse' '
test_path_is_file sub/file1
'
test_expect_failure 'refuse to move sparse file to existing destination' '
test_expect_success 'refuse to move sparse file to existing destination' '
test_when_finished "cleanup_sparse_checkout" &&
mkdir folder1 &&
touch folder1/file1 &&
@ -275,7 +275,7 @@ test_expect_failure 'refuse to move sparse file to existing destination' '
test_cmp expect stderr
'
test_expect_failure 'move sparse file to existing destination with --force and --sparse' '
test_expect_success 'move sparse file to existing destination with --force and --sparse' '
test_when_finished "cleanup_sparse_checkout" &&
mkdir folder1 &&
touch folder1/file1 &&