struct apply_state {
const char *prefix;
int prefix_length;
+
+ /* These control what gets looked at and modified */
+ int check; /* preimage must match working tree, don't actually apply */
+ int check_index; /* preimage must match the indexed version */
+ int update_index; /* check_index && apply */
+
+ /* These boolean parameters control how the apply is done */
+ int allow_overlap;
+ int apply_in_reverse;
+ int apply_with_reject;
+ int apply_verbosely;
+ int unidiff_zero;
};
/*
- * --check turns on checking that the working tree matches the
- * files that are being modified, but doesn't apply the patch
* --stat does just a diffstat, and doesn't actually apply
* --numstat does numeric diffstat, and doesn't actually apply
* --index-info shows the old and new index info for paths if available.
- * --index updates the cache as well.
* --cached updates only the cache without ever touching the working tree.
*/
static int newfd = -1;
-static int unidiff_zero;
static int state_p_value = 1;
static int p_value_known;
-static int check_index;
-static int update_index;
static int cached;
static int diffstat;
static int numstat;
static int summary;
-static int check;
static int apply = 1;
-static int apply_in_reverse;
-static int apply_with_reject;
-static int apply_verbosely;
-static int allow_overlap;
static int no_add;
static int threeway;
static int unsafe_paths;
* between a "---" that is part of a patch, and a "---" that starts
* the next patch is to look at the line counts..
*/
-static int parse_fragment(const char *line, unsigned long size,
- struct patch *patch, struct fragment *fragment)
+static int parse_fragment(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ struct patch *patch,
+ struct fragment *fragment)
{
int added, deleted;
int len = linelen(line, size), offset;
if (!deleted && !added)
leading++;
trailing++;
- if (!apply_in_reverse &&
+ if (!state->apply_in_reverse &&
ws_error_action == correct_ws_error)
check_whitespace(line, len, patch->ws_rule);
break;
case '-':
- if (apply_in_reverse &&
+ if (state->apply_in_reverse &&
ws_error_action != nowarn_ws_error)
check_whitespace(line, len, patch->ws_rule);
deleted++;
trailing = 0;
break;
case '+':
- if (!apply_in_reverse &&
+ if (!state->apply_in_reverse &&
ws_error_action != nowarn_ws_error)
check_whitespace(line, len, patch->ws_rule);
added++;
* The (fragment->patch, fragment->size) pair points into the memory given
* by the caller, not a copy, when we return.
*/
-static int parse_single_patch(const char *line, unsigned long size, struct patch *patch)
+static int parse_single_patch(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ struct patch *patch)
{
unsigned long offset = 0;
unsigned long oldlines = 0, newlines = 0, context = 0;
fragment = xcalloc(1, sizeof(*fragment));
fragment->linenr = state_linenr;
- len = parse_fragment(line, size, patch, fragment);
+ len = parse_fragment(state, line, size, patch, fragment);
if (len <= 0)
die(_("corrupt patch at line %d"), state_linenr);
fragment->patch = line;
? patch->new_name
: patch->old_name);
- patchsize = parse_single_patch(buffer + offset + hdrsize,
- size - offset - hdrsize, patch);
+ patchsize = parse_single_patch(state,
+ buffer + offset + hdrsize,
+ size - offset - hdrsize,
+ patch);
if (!patchsize) {
static const char git_binary[] = "GIT binary patch\n";
* without metadata change. A binary patch appears
* empty to us here.
*/
- if ((apply || check) &&
+ if ((apply || state->check) &&
(!patch->is_binary && !metadata_changes(patch)))
die(_("patch with only garbage at line %d"), state_linenr);
}
* apply at applied_pos (counts in line numbers) in "img".
* Update "img" to remove "preimage" and replace it with "postimage".
*/
-static void update_image(struct image *img,
+static void update_image(struct apply_state *state,
+ struct image *img,
int applied_pos,
struct image *preimage,
struct image *postimage)
memcpy(img->line + applied_pos,
postimage->line,
postimage->nr * sizeof(*img->line));
- if (!allow_overlap)
+ if (!state->allow_overlap)
for (i = 0; i < postimage->nr; i++)
img->line[applied_pos + i].flag |= LINE_PATCHED;
img->nr = nr;
* postimage) for the hunk. Find lines that match "preimage" in "img" and
* replace the part of "img" with "postimage" text.
*/
-static int apply_one_fragment(struct image *img, struct fragment *frag,
+static int apply_one_fragment(struct apply_state *state,
+ struct image *img, struct fragment *frag,
int inaccurate_eof, unsigned ws_rule,
int nth_fragment)
{
if (len < size && patch[len] == '\\')
plen--;
first = *patch;
- if (apply_in_reverse) {
+ if (state->apply_in_reverse) {
if (first == '-')
first = '+';
else if (first == '+')
/* Ignore it, we already handled it */
break;
default:
- if (apply_verbosely)
+ if (state->apply_verbosely)
error(_("invalid start of line: '%c'"), first);
applied_pos = -1;
goto out;
* without leading context must match at the beginning.
*/
match_beginning = (!frag->oldpos ||
- (frag->oldpos == 1 && !unidiff_zero));
+ (frag->oldpos == 1 && !state->unidiff_zero));
/*
* A hunk without trailing lines must match at the end.
* from the lack of trailing lines if the patch was generated
* with unidiff without any context.
*/
- match_end = !unidiff_zero && !trailing;
+ match_end = !state->unidiff_zero && !trailing;
pos = frag->newpos ? (frag->newpos - 1) : 0;
preimage.buf = oldlines;
apply = 0;
}
- if (apply_verbosely && applied_pos != pos) {
+ if (state->apply_verbosely && applied_pos != pos) {
int offset = applied_pos - pos;
- if (apply_in_reverse)
+ if (state->apply_in_reverse)
offset = 0 - offset;
fprintf_ln(stderr,
Q_("Hunk #%d succeeded at %d (offset %d line).",
fprintf_ln(stderr, _("Context reduced to (%ld/%ld)"
" to apply fragment at %d"),
leading, trailing, applied_pos+1);
- update_image(img, applied_pos, &preimage, &postimage);
+ update_image(state, img, applied_pos, &preimage, &postimage);
} else {
- if (apply_verbosely)
+ if (state->apply_verbosely)
error(_("while searching for:\n%.*s"),
(int)(old - oldlines), oldlines);
}
return (applied_pos < 0);
}
-static int apply_binary_fragment(struct image *img, struct patch *patch)
+static int apply_binary_fragment(struct apply_state *state,
+ struct image *img,
+ struct patch *patch)
{
struct fragment *fragment = patch->fragments;
unsigned long len;
patch->old_name);
/* Binary patch is irreversible without the optional second hunk */
- if (apply_in_reverse) {
+ if (state->apply_in_reverse) {
if (!fragment->next)
return error("cannot reverse-apply a binary patch "
"without the reverse hunk to '%s'",
* but the preimage prepared by the caller in "img" is freed here
* or in the helper function apply_binary_fragment() this calls.
*/
-static int apply_binary(struct image *img, struct patch *patch)
+static int apply_binary(struct apply_state *state,
+ struct image *img,
+ struct patch *patch)
{
const char *name = patch->old_name ? patch->old_name : patch->new_name;
unsigned char sha1[20];
* apply the patch data to it, which is stored
* in the patch->fragments->{patch,size}.
*/
- if (apply_binary_fragment(img, patch))
+ if (apply_binary_fragment(state, img, patch))
return error(_("binary patch does not apply to '%s'"),
name);
return 0;
}
-static int apply_fragments(struct image *img, struct patch *patch)
+static int apply_fragments(struct apply_state *state, struct image *img, struct patch *patch)
{
struct fragment *frag = patch->fragments;
const char *name = patch->old_name ? patch->old_name : patch->new_name;
int nth = 0;
if (patch->is_binary)
- return apply_binary(img, patch);
+ return apply_binary(state, img, patch);
while (frag) {
nth++;
- if (apply_one_fragment(img, frag, inaccurate_eof, ws_rule, nth)) {
+ if (apply_one_fragment(state, img, frag, inaccurate_eof, ws_rule, nth)) {
error(_("patch failed: %s:%ld"), name, frag->oldpos);
- if (!apply_with_reject)
+ if (!state->apply_with_reject)
return -1;
frag->rejected = 1;
}
#define SUBMODULE_PATCH_WITHOUT_INDEX 1
-static int load_patch_target(struct strbuf *buf,
+static int load_patch_target(struct apply_state *state,
+ struct strbuf *buf,
const struct cache_entry *ce,
struct stat *st,
const char *name,
unsigned expected_mode)
{
- if (cached || check_index) {
+ if (cached || state->check_index) {
if (read_file_or_gitlink(ce, buf))
return error(_("read of %s failed"), name);
} else if (name) {
* applying a non-git patch that incrementally updates the tree,
* we read from the result of a previous diff.
*/
-static int load_preimage(struct image *image,
+static int load_preimage(struct apply_state *state,
+ struct image *image,
struct patch *patch, struct stat *st,
const struct cache_entry *ce)
{
/* We have a patched copy in memory; use that. */
strbuf_add(&buf, previous->result, previous->resultsize);
} else {
- status = load_patch_target(&buf, ce, st,
+ status = load_patch_target(state, &buf, ce, st,
patch->old_name, patch->old_mode);
if (status < 0)
return status;
* the current contents of the new_name. In no cases other than that
* this function will be called.
*/
-static int load_current(struct image *image, struct patch *patch)
+static int load_current(struct apply_state *state,
+ struct image *image,
+ struct patch *patch)
{
struct strbuf buf = STRBUF_INIT;
int status, pos;
if (verify_index_match(ce, &st))
return error(_("%s: does not match index"), name);
- status = load_patch_target(&buf, ce, &st, name, mode);
+ status = load_patch_target(state, &buf, ce, &st, name, mode);
if (status < 0)
return status;
else if (status)
return 0;
}
-static int try_threeway(struct image *image, struct patch *patch,
- struct stat *st, const struct cache_entry *ce)
+static int try_threeway(struct apply_state *state,
+ struct image *image,
+ struct patch *patch,
+ struct stat *st,
+ const struct cache_entry *ce)
{
unsigned char pre_sha1[20], post_sha1[20], our_sha1[20];
struct strbuf buf = STRBUF_INIT;
img = strbuf_detach(&buf, &len);
prepare_image(&tmp_image, img, len, 1);
/* Apply the patch to get the post image */
- if (apply_fragments(&tmp_image, patch) < 0) {
+ if (apply_fragments(state, &tmp_image, patch) < 0) {
clear_image(&tmp_image);
return -1;
}
/* our_sha1[] is ours */
if (patch->is_new) {
- if (load_current(&tmp_image, patch))
+ if (load_current(state, &tmp_image, patch))
return error("cannot read the current contents of '%s'",
patch->new_name);
} else {
- if (load_preimage(&tmp_image, patch, st, ce))
+ if (load_preimage(state, &tmp_image, patch, st, ce))
return error("cannot read the current contents of '%s'",
patch->old_name);
}
return 0;
}
-static int apply_data(struct patch *patch, struct stat *st, const struct cache_entry *ce)
+static int apply_data(struct apply_state *state, struct patch *patch,
+ struct stat *st, const struct cache_entry *ce)
{
struct image image;
- if (load_preimage(&image, patch, st, ce) < 0)
+ if (load_preimage(state, &image, patch, st, ce) < 0)
return -1;
if (patch->direct_to_threeway ||
- apply_fragments(&image, patch) < 0) {
+ apply_fragments(state, &image, patch) < 0) {
/* Note: with --reject, apply_fragments() returns 0 */
- if (!threeway || try_threeway(&image, patch, st, ce) < 0)
+ if (!threeway || try_threeway(state, &image, patch, st, ce) < 0)
return -1;
}
patch->result = image.buf;
* check_patch() separately makes sure (and errors out otherwise) that
* the path the patch creates does not exist in the current tree.
*/
-static int check_preimage(struct patch *patch, struct cache_entry **ce, struct stat *st)
+static int check_preimage(struct apply_state *state,
+ struct patch *patch,
+ struct cache_entry **ce,
+ struct stat *st)
{
const char *old_name = patch->old_name;
struct patch *previous = NULL;
return error(_("%s: %s"), old_name, strerror(errno));
}
- if (check_index && !previous) {
+ if (state->check_index && !previous) {
int pos = cache_name_pos(old_name, strlen(old_name));
if (pos < 0) {
if (patch->is_new < 0)
#define EXISTS_IN_INDEX 1
#define EXISTS_IN_WORKTREE 2
-static int check_to_create(const char *new_name, int ok_if_exists)
+static int check_to_create(struct apply_state *state,
+ const char *new_name,
+ int ok_if_exists)
{
struct stat nst;
- if (check_index &&
+ if (state->check_index &&
cache_name_pos(new_name, strlen(new_name)) >= 0 &&
!ok_if_exists)
return EXISTS_IN_INDEX;
}
}
-static int path_is_beyond_symlink_1(struct strbuf *name)
+static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *name)
{
do {
unsigned int change;
continue;
/* otherwise, check the preimage */
- if (check_index) {
+ if (state->check_index) {
struct cache_entry *ce;
ce = cache_file_exists(name->buf, name->len, ignore_case);
return 0;
}
-static int path_is_beyond_symlink(const char *name_)
+static int path_is_beyond_symlink(struct apply_state *state, const char *name_)
{
int ret;
struct strbuf name = STRBUF_INIT;
assert(*name_ != '\0');
strbuf_addstr(&name, name_);
- ret = path_is_beyond_symlink_1(&name);
+ ret = path_is_beyond_symlink_1(state, &name);
strbuf_release(&name);
return ret;
* Check and apply the patch in-core; leave the result in patch->result
* for the caller to write it out to the final destination.
*/
-static int check_patch(struct patch *patch)
+static int check_patch(struct apply_state *state, struct patch *patch)
{
struct stat st;
const char *old_name = patch->old_name;
patch->rejected = 1; /* we will drop this after we succeed */
- status = check_preimage(patch, &ce, &st);
+ status = check_preimage(state, patch, &ce, &st);
if (status)
return status;
old_name = patch->old_name;
if (new_name &&
((0 < patch->is_new) || patch->is_rename || patch->is_copy)) {
- int err = check_to_create(new_name, ok_if_exists);
+ int err = check_to_create(state, new_name, ok_if_exists);
if (err && threeway) {
patch->direct_to_threeway = 1;
* is not deposited to a path that is beyond a symbolic link
* here.
*/
- if (!patch->is_delete && path_is_beyond_symlink(patch->new_name))
+ if (!patch->is_delete && path_is_beyond_symlink(state, patch->new_name))
return error(_("affected file '%s' is beyond a symbolic link"),
patch->new_name);
- if (apply_data(patch, &st, ce) < 0)
+ if (apply_data(state, patch, &st, ce) < 0)
return error(_("%s: patch does not apply"), name);
patch->rejected = 0;
return 0;
}
-static int check_patch_list(struct patch *patch)
+static int check_patch_list(struct apply_state *state, struct patch *patch)
{
int err = 0;
prepare_symlink_changes(patch);
prepare_fn_table(patch);
while (patch) {
- if (apply_verbosely)
+ if (state->apply_verbosely)
say_patch_name(stderr,
_("Checking patch %s..."), patch);
- err |= check_patch(patch);
+ err |= check_patch(state, patch);
patch = patch->next;
}
return err;
}
}
-static void remove_file(struct patch *patch, int rmdir_empty)
+static void remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty)
{
- if (update_index) {
+ if (state->update_index) {
if (remove_file_from_cache(patch->old_name) < 0)
die(_("unable to remove %s from index"), patch->old_name);
}
}
}
-static void add_index_file(const char *path, unsigned mode, void *buf, unsigned long size)
+static void add_index_file(struct apply_state *state,
+ const char *path,
+ unsigned mode,
+ void *buf,
+ unsigned long size)
{
struct stat st;
struct cache_entry *ce;
int namelen = strlen(path);
unsigned ce_size = cache_entry_size(namelen);
- if (!update_index)
+ if (!state->update_index)
return;
ce = xcalloc(1, ce_size);
die_errno(_("unable to write file '%s' mode %o"), path, mode);
}
-static void add_conflicted_stages_file(struct patch *patch)
+static void add_conflicted_stages_file(struct apply_state *state,
+ struct patch *patch)
{
int stage, namelen;
unsigned ce_size, mode;
struct cache_entry *ce;
- if (!update_index)
+ if (!state->update_index)
return;
namelen = strlen(patch->new_name);
ce_size = cache_entry_size(namelen);
}
}
-static void create_file(struct patch *patch)
+static void create_file(struct apply_state *state, struct patch *patch)
{
char *path = patch->new_name;
unsigned mode = patch->new_mode;
create_one_file(path, mode, buf, size);
if (patch->conflicted_threeway)
- add_conflicted_stages_file(patch);
+ add_conflicted_stages_file(state, patch);
else
- add_index_file(path, mode, buf, size);
+ add_index_file(state, path, mode, buf, size);
}
/* phase zero is to remove, phase one is to create */
-static void write_out_one_result(struct patch *patch, int phase)
+static void write_out_one_result(struct apply_state *state,
+ struct patch *patch,
+ int phase)
{
if (patch->is_delete > 0) {
if (phase == 0)
- remove_file(patch, 1);
+ remove_file(state, patch, 1);
return;
}
if (patch->is_new > 0 || patch->is_copy) {
if (phase == 1)
- create_file(patch);
+ create_file(state, patch);
return;
}
/*
* thing: remove the old, write the new
*/
if (phase == 0)
- remove_file(patch, patch->is_rename);
+ remove_file(state, patch, patch->is_rename);
if (phase == 1)
- create_file(patch);
+ create_file(state, patch);
}
-static int write_out_one_reject(struct patch *patch)
+static int write_out_one_reject(struct apply_state *state, struct patch *patch)
{
FILE *rej;
char namebuf[PATH_MAX];
}
if (!cnt) {
- if (apply_verbosely)
+ if (state->apply_verbosely)
say_patch_name(stderr,
_("Applied patch %s cleanly."), patch);
return 0;
return -1;
}
-static int write_out_results(struct patch *list)
+static int write_out_results(struct apply_state *state, struct patch *list)
{
int phase;
int errs = 0;
if (l->rejected)
errs = 1;
else {
- write_out_one_result(l, phase);
+ write_out_one_result(state, l, phase);
if (phase == 1) {
- if (write_out_one_reject(l))
+ if (write_out_one_reject(state, l))
errs = 1;
if (l->conflicted_threeway) {
string_list_append(&cpath, l->new_name);
free_patch(patch);
break;
}
- if (apply_in_reverse)
+ if (state->apply_in_reverse)
reverse_patches(patch);
if (use_patch(state, patch)) {
patch_stats(patch);
listp = &patch->next;
}
else {
- if (apply_verbosely)
+ if (state->apply_verbosely)
say_patch_name(stderr, _("Skipped patch '%s'."), patch);
free_patch(patch);
skipped_patch++;
if (whitespace_error && (ws_error_action == die_on_ws_error))
apply = 0;
- update_index = check_index && apply;
- if (update_index && newfd < 0)
+ state->update_index = state->check_index && apply;
+ if (state->update_index && newfd < 0)
newfd = hold_locked_index(&lock_file, 1);
- if (check_index) {
+ if (state->check_index) {
if (read_cache() < 0)
die(_("unable to read index file"));
}
- if ((check || apply) &&
- check_patch_list(list) < 0 &&
- !apply_with_reject)
+ if ((state->check || apply) &&
+ check_patch_list(state, list) < 0 &&
+ !state->apply_with_reject)
exit(1);
- if (apply && write_out_results(list)) {
- if (apply_with_reject)
+ if (apply && write_out_results(state, list)) {
+ if (state->apply_with_reject)
exit(1);
/* with --3way, we still need to write the index out */
return 1;
N_("show number of added and deleted lines in decimal notation")),
OPT_BOOL(0, "summary", &summary,
N_("instead of applying the patch, output a summary for the input")),
- OPT_BOOL(0, "check", &check,
+ OPT_BOOL(0, "check", &state.check,
N_("instead of applying the patch, see if the patch is applicable")),
- OPT_BOOL(0, "index", &check_index,
+ OPT_BOOL(0, "index", &state.check_index,
N_("make sure the patch is applicable to the current index")),
OPT_BOOL(0, "cached", &cached,
N_("apply a patch without touching the working tree")),
{ OPTION_CALLBACK, 0, "ignore-whitespace", NULL, NULL,
N_("ignore changes in whitespace when finding context"),
PARSE_OPT_NOARG, option_parse_space_change },
- OPT_BOOL('R', "reverse", &apply_in_reverse,
+ OPT_BOOL('R', "reverse", &state.apply_in_reverse,
N_("apply the patch in reverse")),
- OPT_BOOL(0, "unidiff-zero", &unidiff_zero,
+ OPT_BOOL(0, "unidiff-zero", &state.unidiff_zero,
N_("don't expect at least one line of context")),
- OPT_BOOL(0, "reject", &apply_with_reject,
+ OPT_BOOL(0, "reject", &state.apply_with_reject,
N_("leave the rejected hunks in corresponding *.rej files")),
- OPT_BOOL(0, "allow-overlap", &allow_overlap,
+ OPT_BOOL(0, "allow-overlap", &state.allow_overlap,
N_("allow overlapping hunks")),
- OPT__VERBOSE(&apply_verbosely, N_("be verbose")),
+ OPT__VERBOSE(&state.apply_verbosely, N_("be verbose")),
OPT_BIT(0, "inaccurate-eof", &options,
N_("tolerate incorrectly detected missing new-line at the end of file"),
INACCURATE_EOF),
argc = parse_options(argc, argv, state.prefix, builtin_apply_options,
apply_usage, 0);
- if (apply_with_reject && threeway)
+ if (state.apply_with_reject && threeway)
die("--reject and --3way cannot be used together.");
if (cached && threeway)
die("--cached and --3way cannot be used together.");
if (threeway) {
if (is_not_gitdir)
die(_("--3way outside a repository"));
- check_index = 1;
+ state.check_index = 1;
}
- if (apply_with_reject)
- apply = apply_verbosely = 1;
- if (!force_apply && (diffstat || numstat || summary || check || fake_ancestor))
+ if (state.apply_with_reject)
+ apply = state.apply_verbosely = 1;
+ if (!force_apply && (diffstat || numstat || summary || state.check || fake_ancestor))
apply = 0;
- if (check_index && is_not_gitdir)
+ if (state.check_index && is_not_gitdir)
die(_("--index outside a repository"));
if (cached) {
if (is_not_gitdir)
die(_("--cached outside a repository"));
- check_index = 1;
+ state.check_index = 1;
}
- if (check_index)
+ if (state.check_index)
unsafe_paths = 0;
for (i = 0; i < argc; i++) {
whitespace_error);
}
- if (update_index) {
+ if (state.update_index) {
if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("Unable to write new index file"));
}