mirror of
https://github.com/git/git
synced 2024-08-25 02:35:46 +00:00
builtin-apply: keep information about files to be deleted
Example correct diff generated by `diff -M -B' might look like this: diff --git a/file1 b/file2 similarity index 100% rename from file1 rename to file2 diff --git a/file2 b/file1 similarity index 100% rename from file2 rename to file1 Information about removing `file2' comes after information about creation of new `file2' (renamed from `file1'). Existing implementation isn't able to apply such patch, because it has to know in advance which files will be removed. This patch populates fn_table with information about removal of files before calling check_patch() for each patch to be applied. Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
parent
1d49f0d1a1
commit
e8141fcf54
|
@ -2271,6 +2271,25 @@ static struct patch *in_fn_table(const char *name)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* item->util in the filename table records the status of the path.
|
||||
* Usually it points at a patch (whose result records the contents
|
||||
* of it after applying it), but it could be PATH_WAS_DELETED for a
|
||||
* path that a previously applied patch has already removed.
|
||||
*/
|
||||
#define PATH_TO_BE_DELETED ((struct patch *) -2)
|
||||
#define PATH_WAS_DELETED ((struct patch *) -1)
|
||||
|
||||
static int to_be_deleted(struct patch *patch)
|
||||
{
|
||||
return patch == PATH_TO_BE_DELETED;
|
||||
}
|
||||
|
||||
static int was_deleted(struct patch *patch)
|
||||
{
|
||||
return patch == PATH_WAS_DELETED;
|
||||
}
|
||||
|
||||
static void add_to_fn_table(struct patch *patch)
|
||||
{
|
||||
struct string_list_item *item;
|
||||
|
@ -2291,7 +2310,22 @@ static void add_to_fn_table(struct patch *patch)
|
|||
*/
|
||||
if ((patch->new_name == NULL) || (patch->is_rename)) {
|
||||
item = string_list_insert(patch->old_name, &fn_table);
|
||||
item->util = (struct patch *) -1;
|
||||
item->util = PATH_WAS_DELETED;
|
||||
}
|
||||
}
|
||||
|
||||
static void prepare_fn_table(struct patch *patch)
|
||||
{
|
||||
/*
|
||||
* store information about incoming file deletion
|
||||
*/
|
||||
while (patch) {
|
||||
if ((patch->new_name == NULL) || (patch->is_rename)) {
|
||||
struct string_list_item *item;
|
||||
item = string_list_insert(patch->old_name, &fn_table);
|
||||
item->util = PATH_TO_BE_DELETED;
|
||||
}
|
||||
patch = patch->next;
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -2304,8 +2338,8 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *
|
|||
struct patch *tpatch;
|
||||
|
||||
if (!(patch->is_copy || patch->is_rename) &&
|
||||
((tpatch = in_fn_table(patch->old_name)) != NULL)) {
|
||||
if (tpatch == (struct patch *) -1) {
|
||||
(tpatch = in_fn_table(patch->old_name)) != NULL && !to_be_deleted(tpatch)) {
|
||||
if (was_deleted(tpatch)) {
|
||||
return error("patch %s has been renamed/deleted",
|
||||
patch->old_name);
|
||||
}
|
||||
|
@ -2399,10 +2433,9 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s
|
|||
assert(patch->is_new <= 0);
|
||||
|
||||
if (!(patch->is_copy || patch->is_rename) &&
|
||||
(tpatch = in_fn_table(old_name)) != NULL) {
|
||||
if (tpatch == (struct patch *) -1) {
|
||||
(tpatch = in_fn_table(old_name)) != NULL && !to_be_deleted(tpatch)) {
|
||||
if (was_deleted(tpatch))
|
||||
return error("%s: has been deleted/renamed", old_name);
|
||||
}
|
||||
st_mode = tpatch->new_mode;
|
||||
} else if (!cached) {
|
||||
stat_ret = lstat(old_name, st);
|
||||
|
@ -2410,6 +2443,9 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s
|
|||
return error("%s: %s", old_name, strerror(errno));
|
||||
}
|
||||
|
||||
if (to_be_deleted(tpatch))
|
||||
tpatch = NULL;
|
||||
|
||||
if (check_index && !tpatch) {
|
||||
int pos = cache_name_pos(old_name, strlen(old_name));
|
||||
if (pos < 0) {
|
||||
|
@ -2471,6 +2507,7 @@ static int check_patch(struct patch *patch)
|
|||
const char *new_name = patch->new_name;
|
||||
const char *name = old_name ? old_name : new_name;
|
||||
struct cache_entry *ce = NULL;
|
||||
struct patch *tpatch;
|
||||
int ok_if_exists;
|
||||
int status;
|
||||
|
||||
|
@ -2481,7 +2518,8 @@ static int check_patch(struct patch *patch)
|
|||
return status;
|
||||
old_name = patch->old_name;
|
||||
|
||||
if (in_fn_table(new_name) == (struct patch *) -1)
|
||||
if ((tpatch = in_fn_table(new_name)) &&
|
||||
(was_deleted(tpatch) || to_be_deleted(tpatch)))
|
||||
/*
|
||||
* A type-change diff is always split into a patch to
|
||||
* delete old, immediately followed by a patch to
|
||||
|
@ -2533,6 +2571,7 @@ static int check_patch_list(struct patch *patch)
|
|||
{
|
||||
int err = 0;
|
||||
|
||||
prepare_fn_table(patch);
|
||||
while (patch) {
|
||||
if (apply_verbosely)
|
||||
say_patch_name(stderr,
|
||||
|
|
|
@ -31,7 +31,7 @@ test_expect_success 'diff -M -B' '
|
|||
|
||||
'
|
||||
|
||||
test_expect_failure 'apply' '
|
||||
test_expect_success 'apply' '
|
||||
git apply diff
|
||||
'
|
||||
|
||||
|
|
Loading…
Reference in a new issue