#include "ll-merge.h"
#include "rerere.h"
+struct apply_state {
+ const char *prefix;
+ int prefix_length;
+
+ /* These control what gets looked at and modified */
+ int cached; /* apply to the index only */
+ 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 control cosmetic aspect of the output */
+ int diffstat; /* just show a diffstat, and don't actually 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 const char *prefix;
-static int prefix_length = -1;
static int newfd = -1;
-static int unidiff_zero;
-static int p_value = 1;
+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;
static const char *patch_input_file;
static struct strbuf root = STRBUF_INIT;
-static int read_stdin = 1;
-static int options;
static void parse_whitespace_option(const char *option)
{
* file (and how) we're patching right now.. The "is_xxxx"
* things are flags, where -1 means "don't know yet".
*/
-static int linenr = 1;
+static int state_linenr = 1;
/*
* This represents one "hunk" from a patch, starting with
* Given the string after "--- " or "+++ ", guess the appropriate
* p_value for the given patch.
*/
-static int guess_p_value(const char *nameline)
+static int guess_p_value(struct apply_state *state, const char *nameline)
{
char *name, *cp;
int val = -1;
cp = strchr(name, '/');
if (!cp)
val = 0;
- else if (prefix) {
+ else if (state->prefix) {
/*
* Does it begin with "a/$our-prefix" and such? Then this is
* very likely to apply to our directory.
*/
- if (!strncmp(name, prefix, prefix_length))
- val = count_slashes(prefix);
+ if (!strncmp(name, state->prefix, state->prefix_length))
+ val = count_slashes(state->prefix);
else {
cp++;
- if (!strncmp(cp, prefix, prefix_length))
- val = count_slashes(prefix) + 1;
+ if (!strncmp(cp, state->prefix, state->prefix_length))
+ val = count_slashes(state->prefix) + 1;
}
}
free(name);
* files, we can happily check the index for a match, but for creating a
* new file we should try to match whatever "patch" does. I have no idea.
*/
-static void parse_traditional_patch(const char *first, const char *second, struct patch *patch)
+static void parse_traditional_patch(struct apply_state *state,
+ const char *first,
+ const char *second,
+ struct patch *patch)
{
char *name;
second += 4; /* skip "+++ " */
if (!p_value_known) {
int p, q;
- p = guess_p_value(first);
- q = guess_p_value(second);
+ p = guess_p_value(state, first);
+ q = guess_p_value(state, second);
if (p < 0) p = q;
if (0 <= p && p == q) {
- p_value = p;
+ state_p_value = p;
p_value_known = 1;
}
}
if (is_dev_null(first)) {
patch->is_new = 1;
patch->is_delete = 0;
- name = find_name_traditional(second, NULL, p_value);
+ name = find_name_traditional(second, NULL, state_p_value);
patch->new_name = name;
} else if (is_dev_null(second)) {
patch->is_new = 0;
patch->is_delete = 1;
- name = find_name_traditional(first, NULL, p_value);
+ name = find_name_traditional(first, NULL, state_p_value);
patch->old_name = name;
} else {
char *first_name;
- first_name = find_name_traditional(first, NULL, p_value);
- name = find_name_traditional(second, first_name, p_value);
+ first_name = find_name_traditional(first, NULL, state_p_value);
+ name = find_name_traditional(second, first_name, state_p_value);
free(first_name);
if (has_epoch_timestamp(first)) {
patch->is_new = 1;
}
}
if (!name)
- die(_("unable to find filename in patch at line %d"), linenr);
+ die(_("unable to find filename in patch at line %d"), state_linenr);
}
static int gitdiff_hdrend(const char *line, struct patch *patch)
#define DIFF_OLD_NAME 0
#define DIFF_NEW_NAME 1
-static char *gitdiff_verify_name(const char *line, int isnull, char *orig_name, int side)
+static void gitdiff_verify_name(const char *line, int isnull, char **name, int side)
{
- if (!orig_name && !isnull)
- return find_name(line, NULL, p_value, TERM_TAB);
+ if (!*name && !isnull) {
+ *name = find_name(line, NULL, state_p_value, TERM_TAB);
+ return;
+ }
- if (orig_name) {
- int len = strlen(orig_name);
+ if (*name) {
+ int len = strlen(*name);
char *another;
if (isnull)
die(_("git apply: bad git-diff - expected /dev/null, got %s on line %d"),
- orig_name, linenr);
- another = find_name(line, NULL, p_value, TERM_TAB);
- if (!another || memcmp(another, orig_name, len + 1))
+ *name, state_linenr);
+ another = find_name(line, NULL, state_p_value, TERM_TAB);
+ if (!another || memcmp(another, *name, len + 1))
die((side == DIFF_NEW_NAME) ?
_("git apply: bad git-diff - inconsistent new filename on line %d") :
- _("git apply: bad git-diff - inconsistent old filename on line %d"), linenr);
+ _("git apply: bad git-diff - inconsistent old filename on line %d"), state_linenr);
free(another);
- return orig_name;
} else {
/* expect "/dev/null" */
if (memcmp("/dev/null", line, 9) || line[9] != '\n')
- die(_("git apply: bad git-diff - expected /dev/null on line %d"), linenr);
- return NULL;
+ die(_("git apply: bad git-diff - expected /dev/null on line %d"), state_linenr);
}
}
static int gitdiff_oldname(const char *line, struct patch *patch)
{
- patch->old_name = gitdiff_verify_name(line, patch->is_new, patch->old_name,
- DIFF_OLD_NAME);
+ gitdiff_verify_name(line, patch->is_new, &patch->old_name,
+ DIFF_OLD_NAME);
return 0;
}
static int gitdiff_newname(const char *line, struct patch *patch)
{
- patch->new_name = gitdiff_verify_name(line, patch->is_delete, patch->new_name,
- DIFF_NEW_NAME);
+ gitdiff_verify_name(line, patch->is_delete, &patch->new_name,
+ DIFF_NEW_NAME);
return 0;
}
{
patch->is_copy = 1;
free(patch->old_name);
- patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+ patch->old_name = find_name(line, NULL, state_p_value ? state_p_value - 1 : 0, 0);
return 0;
}
{
patch->is_copy = 1;
free(patch->new_name);
- patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+ patch->new_name = find_name(line, NULL, state_p_value ? state_p_value - 1 : 0, 0);
return 0;
}
{
patch->is_rename = 1;
free(patch->old_name);
- patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+ patch->old_name = find_name(line, NULL, state_p_value ? state_p_value - 1 : 0, 0);
return 0;
}
{
patch->is_rename = 1;
free(patch->new_name);
- patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+ patch->new_name = find_name(line, NULL, state_p_value ? state_p_value - 1 : 0, 0);
return 0;
}
int nslash;
int i;
- if (!p_value)
+ if (!state_p_value)
return (llen && line[0] == '/') ? NULL : line;
- nslash = p_value;
+ nslash = state_p_value;
for (i = 0; i < llen; i++) {
int ch = line[i];
if (ch == '/' && --nslash <= 0)
line += len;
size -= len;
- linenr++;
- for (offset = len ; size > 0 ; offset += len, size -= len, line += len, linenr++) {
+ state_linenr++;
+ for (offset = len ; size > 0 ; offset += len, size -= len, line += len, state_linenr++) {
static const struct opentry {
const char *str;
int (*fn)(const char *, struct patch *);
return offset;
}
-static int find_header(const char *line, unsigned long size, int *hdrsize, struct patch *patch)
+static int find_header(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ int *hdrsize,
+ struct patch *patch)
{
unsigned long offset, len;
patch->is_new = patch->is_delete = -1;
patch->old_mode = patch->new_mode = 0;
patch->old_name = patch->new_name = NULL;
- for (offset = 0; size > 0; offset += len, size -= len, line += len, linenr++) {
+ for (offset = 0; size > 0; offset += len, size -= len, line += len, state_linenr++) {
unsigned long nextlen;
len = linelen(line, size);
if (parse_fragment_header(line, len, &dummy) < 0)
continue;
die(_("patch fragment without header at line %d: %.*s"),
- linenr, (int)len-1, line);
+ state_linenr, (int)len-1, line);
}
if (size < len + 6)
"%d leading pathname component (line %d)",
"git diff header lacks filename information when removing "
"%d leading pathname components (line %d)",
- p_value),
- p_value, linenr);
+ state_p_value),
+ state_p_value, state_linenr);
patch->old_name = xstrdup(patch->def_name);
patch->new_name = xstrdup(patch->def_name);
}
if (!patch->is_delete && !patch->new_name)
die("git diff header lacks filename information "
- "(line %d)", linenr);
+ "(line %d)", state_linenr);
patch->is_toplevel_relative = 1;
*hdrsize = git_hdr_len;
return offset;
continue;
/* Ok, we'll consider it a patch */
- parse_traditional_patch(line, line+len, patch);
+ parse_traditional_patch(state, line, line+len, patch);
*hdrsize = len + nextlen;
- linenr += 2;
+ state_linenr += 2;
return offset;
}
return -1;
{
unsigned result = ws_check(line + 1, len - 1, ws_rule);
- record_ws_error(result, line + 1, len - 2, linenr);
+ record_ws_error(result, line + 1, len - 2, state_linenr);
}
/*
* 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;
/* Parse the thing.. */
line += len;
size -= len;
- linenr++;
+ state_linenr++;
added = deleted = 0;
for (offset = len;
0 < size;
- offset += len, size -= len, line += len, linenr++) {
+ offset += len, size -= len, line += len, state_linenr++) {
if (!oldlines && !newlines)
break;
len = linelen(line, size);
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;
int len;
fragment = xcalloc(1, sizeof(*fragment));
- fragment->linenr = linenr;
- len = parse_fragment(line, size, patch, fragment);
+ fragment->linenr = state_linenr;
+ len = parse_fragment(state, line, size, patch, fragment);
if (len <= 0)
- die(_("corrupt patch at line %d"), linenr);
+ die(_("corrupt patch at line %d"), state_linenr);
fragment->patch = line;
fragment->size = len;
oldlines += fragment->oldlines;
else
return NULL;
- linenr++;
+ state_linenr++;
buffer += llen;
while (1) {
int byte_length, max_byte_length, newsize;
llen = linelen(buffer, size);
used += llen;
- linenr++;
+ state_linenr++;
if (llen == 1) {
/* consume the blank line */
buffer++;
free(data);
*status_p = -1;
error(_("corrupt binary patch at line %d: %.*s"),
- linenr-1, llen-1, buffer);
+ state_linenr-1, llen-1, buffer);
return NULL;
}
forward = parse_binary_hunk(&buffer, &size, &status, &used);
if (!forward && !status)
/* there has to be one hunk (forward hunk) */
- return error(_("unrecognized binary patch at line %d"), linenr-1);
+ return error(_("unrecognized binary patch at line %d"), state_linenr-1);
if (status)
/* otherwise we already gave an error message */
return status;
return used;
}
-static void prefix_one(char **name)
+static void prefix_one(struct apply_state *state, char **name)
{
char *old_name = *name;
if (!old_name)
return;
- *name = xstrdup(prefix_filename(prefix, prefix_length, *name));
+ *name = xstrdup(prefix_filename(state->prefix, state->prefix_length, *name));
free(old_name);
}
-static void prefix_patch(struct patch *p)
+static void prefix_patch(struct apply_state *state, struct patch *p)
{
- if (!prefix || p->is_toplevel_relative)
+ if (!state->prefix || p->is_toplevel_relative)
return;
- prefix_one(&p->new_name);
- prefix_one(&p->old_name);
+ prefix_one(state, &p->new_name);
+ prefix_one(state, &p->old_name);
}
/*
it->util = exclude ? NULL : (void *) 1;
}
-static int use_patch(struct patch *p)
+static int use_patch(struct apply_state *state, struct patch *p)
{
const char *pathname = p->new_name ? p->new_name : p->old_name;
int i;
/* Paths outside are not touched regardless of "--include" */
- if (0 < prefix_length) {
+ if (0 < state->prefix_length) {
int pathlen = strlen(pathname);
- if (pathlen <= prefix_length ||
- memcmp(prefix, pathname, prefix_length))
+ if (pathlen <= state->prefix_length ||
+ memcmp(state->prefix, pathname, state->prefix_length))
return 0;
}
* Return the number of bytes consumed, so that the caller can call us
* again for the next patch.
*/
-static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
+static int parse_chunk(struct apply_state *state, char *buffer, unsigned long size, struct patch *patch)
{
int hdrsize, patchsize;
- int offset = find_header(buffer, size, &hdrsize, patch);
+ int offset = find_header(state, buffer, size, &hdrsize, patch);
if (offset < 0)
return offset;
- prefix_patch(patch);
+ prefix_patch(state, patch);
- if (!use_patch(patch))
+ if (!use_patch(state, patch))
patch->ws_rule = 0;
else
patch->ws_rule = whitespace_rule(patch->new_name
? 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";
if (llen == sizeof(git_binary) - 1 &&
!memcmp(git_binary, buffer + hd, llen)) {
int used;
- linenr++;
+ state_linenr++;
used = parse_binary(buffer + hd + llen,
size - hd - llen, patch);
if (used < 0)
int len = strlen(binhdr[i]);
if (len < size - hd &&
!memcmp(binhdr[i], buffer + hd, len)) {
- linenr++;
+ state_linenr++;
patch->is_binary = 1;
patchsize = llen;
break;
* 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"), linenr);
+ die(_("patch with only garbage at line %d"), state_linenr);
}
return offset + hdrsize + patchsize;
fixed = preimage->buf;
for (i = reduced = ctx = 0; i < postimage->nr; i++) {
- size_t len = postimage->line[i].len;
+ size_t l_len = postimage->line[i].len;
if (!(postimage->line[i].flag & LINE_COMMON)) {
/* an added line -- no counterparts in preimage */
- memmove(new, old, len);
- old += len;
- new += len;
+ memmove(new, old, l_len);
+ old += l_len;
+ new += l_len;
continue;
}
/* a common context -- skip it in the original postimage */
- old += len;
+ old += l_len;
/* and find the corresponding one in the fixed preimage */
while (ctx < preimage->nr &&
}
/* and copy it in, while fixing the line length */
- len = preimage->line[ctx].len;
- memcpy(new, fixed, len);
- new += len;
- fixed += len;
- postimage->line[i].len = len;
+ l_len = preimage->line[ctx].len;
+ memcpy(new, fixed, l_len);
+ new += l_len;
+ fixed += l_len;
+ postimage->line[i].len = l_len;
ctx++;
}
postimage->nr -= reduced;
}
+static int line_by_line_fuzzy_match(struct image *img,
+ struct image *preimage,
+ struct image *postimage,
+ unsigned long try,
+ int try_lno,
+ int preimage_limit)
+{
+ int i;
+ size_t imgoff = 0;
+ size_t preoff = 0;
+ size_t postlen = postimage->len;
+ size_t extra_chars;
+ char *buf;
+ char *preimage_eof;
+ char *preimage_end;
+ struct strbuf fixed;
+ char *fixed_buf;
+ size_t fixed_len;
+
+ for (i = 0; i < preimage_limit; i++) {
+ size_t prelen = preimage->line[i].len;
+ size_t imglen = img->line[try_lno+i].len;
+
+ if (!fuzzy_matchlines(img->buf + try + imgoff, imglen,
+ preimage->buf + preoff, prelen))
+ return 0;
+ if (preimage->line[i].flag & LINE_COMMON)
+ postlen += imglen - prelen;
+ imgoff += imglen;
+ preoff += prelen;
+ }
+
+ /*
+ * Ok, the preimage matches with whitespace fuzz.
+ *
+ * imgoff now holds the true length of the target that
+ * matches the preimage before the end of the file.
+ *
+ * Count the number of characters in the preimage that fall
+ * beyond the end of the file and make sure that all of them
+ * are whitespace characters. (This can only happen if
+ * we are removing blank lines at the end of the file.)
+ */
+ buf = preimage_eof = preimage->buf + preoff;
+ for ( ; i < preimage->nr; i++)
+ preoff += preimage->line[i].len;
+ preimage_end = preimage->buf + preoff;
+ for ( ; buf < preimage_end; buf++)
+ if (!isspace(*buf))
+ return 0;
+
+ /*
+ * Update the preimage and the common postimage context
+ * lines to use the same whitespace as the target.
+ * If whitespace is missing in the target (i.e.
+ * if the preimage extends beyond the end of the file),
+ * use the whitespace from the preimage.
+ */
+ extra_chars = preimage_end - preimage_eof;
+ strbuf_init(&fixed, imgoff + extra_chars);
+ strbuf_add(&fixed, img->buf + try, imgoff);
+ strbuf_add(&fixed, preimage_eof, extra_chars);
+ fixed_buf = strbuf_detach(&fixed, &fixed_len);
+ update_pre_post_images(preimage, postimage,
+ fixed_buf, fixed_len, postlen);
+ return 1;
+}
+
static int match_fragment(struct image *img,
struct image *preimage,
struct image *postimage,
* fuzzy matching. We collect all the line length information because
* we need it to adjust whitespace if we match.
*/
- if (ws_ignore_action == ignore_ws_change) {
- size_t imgoff = 0;
- size_t preoff = 0;
- size_t postlen = postimage->len;
- size_t extra_chars;
- char *preimage_eof;
- char *preimage_end;
- for (i = 0; i < preimage_limit; i++) {
- size_t prelen = preimage->line[i].len;
- size_t imglen = img->line[try_lno+i].len;
-
- if (!fuzzy_matchlines(img->buf + try + imgoff, imglen,
- preimage->buf + preoff, prelen))
- return 0;
- if (preimage->line[i].flag & LINE_COMMON)
- postlen += imglen - prelen;
- imgoff += imglen;
- preoff += prelen;
- }
-
- /*
- * Ok, the preimage matches with whitespace fuzz.
- *
- * imgoff now holds the true length of the target that
- * matches the preimage before the end of the file.
- *
- * Count the number of characters in the preimage that fall
- * beyond the end of the file and make sure that all of them
- * are whitespace characters. (This can only happen if
- * we are removing blank lines at the end of the file.)
- */
- buf = preimage_eof = preimage->buf + preoff;
- for ( ; i < preimage->nr; i++)
- preoff += preimage->line[i].len;
- preimage_end = preimage->buf + preoff;
- for ( ; buf < preimage_end; buf++)
- if (!isspace(*buf))
- return 0;
-
- /*
- * Update the preimage and the common postimage context
- * lines to use the same whitespace as the target.
- * If whitespace is missing in the target (i.e.
- * if the preimage extends beyond the end of the file),
- * use the whitespace from the preimage.
- */
- extra_chars = preimage_end - preimage_eof;
- strbuf_init(&fixed, imgoff + extra_chars);
- strbuf_add(&fixed, img->buf + try, imgoff);
- strbuf_add(&fixed, preimage_eof, extra_chars);
- fixed_buf = strbuf_detach(&fixed, &fixed_len);
- update_pre_post_images(preimage, postimage,
- fixed_buf, fixed_len, postlen);
- return 1;
- }
+ if (ws_ignore_action == ignore_ws_change)
+ return line_by_line_fuzzy_match(img, preimage, postimage,
+ try, try_lno, preimage_limit);
if (ws_error_action != correct_ws_error)
return 0;
* 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 (state->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(_("path %s has been renamed/deleted"), old_name);
if (previous) {
st_mode = previous->new_mode;
- } else if (!cached) {
+ } else if (!state->cached) {
stat_ret = lstat(old_name, st);
if (stat_ret && errno != ENOENT)
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)
if (checkout_target(&the_index, *ce, st))
return -1;
}
- if (!cached && verify_index_match(*ce, st))
+ if (!state->cached && verify_index_match(*ce, st))
return error(_("%s: does not match index"), old_name);
- if (cached)
+ if (state->cached)
st_mode = (*ce)->ce_mode;
} else if (stat_ret < 0) {
if (patch->is_new < 0)
return error(_("%s: %s"), old_name, strerror(errno));
}
- if (!cached && !previous)
+ if (!state->cached && !previous)
st_mode = ce_mode_from_stat(*ce, st->st_mode);
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;
- if (cached)
+ if (state->cached)
return 0;
if (!lstat(new_name, &nst)) {
}
}
-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);
}
- if (!cached) {
+ if (!state->cached) {
if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) {
remove_path(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);
get_sha1_hex(s, ce->sha1))
die(_("corrupt patch for submodule %s"), path);
} else {
- if (!cached) {
+ if (!state->cached) {
if (lstat(path, &st) < 0)
die_errno(_("unable to stat newly created file '%s'"),
path);
* which is true 99% of the time anyway. If they don't,
* we create them and try again.
*/
-static void create_one_file(char *path, unsigned mode, const char *buf, unsigned long size)
+static void create_one_file(struct apply_state *state,
+ char *path,
+ unsigned mode,
+ const char *buf,
+ unsigned long size)
{
- if (cached)
+ if (state->cached)
return;
if (!try_create_file(path, mode, buf, size))
return;
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;
if (!mode)
mode = S_IFREG | 0644;
- create_one_file(path, mode, buf, size);
+ create_one_file(state, 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);
#define INACCURATE_EOF (1<<0)
#define RECOUNT (1<<1)
-static int apply_patch(int fd, const char *filename, int options)
+static int apply_patch(struct apply_state *state,
+ int fd,
+ const char *filename,
+ int options)
{
size_t offset;
struct strbuf buf = STRBUF_INIT; /* owns the patch text */
patch = xcalloc(1, sizeof(*patch));
patch->inaccurate_eof = !!(options & INACCURATE_EOF);
patch->recount = !!(options & RECOUNT);
- nr = parse_chunk(buf.buf + offset, buf.len - offset, patch);
+ nr = parse_chunk(state, buf.buf + offset, buf.len - offset, patch);
if (nr < 0) {
free_patch(patch);
break;
}
- if (apply_in_reverse)
+ if (state->apply_in_reverse)
reverse_patches(patch);
- if (use_patch(patch)) {
+ if (use_patch(state, patch)) {
patch_stats(patch);
*listp = 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;
if (fake_ancestor)
build_fake_ancestor(list, fake_ancestor);
- if (diffstat)
+ if (state->diffstat)
stat_patch_list(list);
if (numstat)
static int option_parse_p(const struct option *opt,
const char *arg, int unset)
{
- p_value = atoi(arg);
+ state_p_value = atoi(arg);
p_value_known = 1;
return 0;
}
return 0;
}
-int cmd_apply(int argc, const char **argv, const char *prefix_)
+static void init_apply_state(struct apply_state *state, const char *prefix)
+{
+ memset(state, 0, sizeof(*state));
+ state->prefix = prefix;
+ state->prefix_length = state->prefix ? strlen(state->prefix) : 0;
+
+ git_apply_config();
+ if (apply_default_whitespace)
+ parse_whitespace_option(apply_default_whitespace);
+ if (apply_default_ignorewhitespace)
+ parse_ignorewhitespace_option(apply_default_ignorewhitespace);
+}
+
+static void clear_apply_state(struct apply_state *state)
+{
+ /* empty for now */
+}
+
+int cmd_apply(int argc, const char **argv, const char *prefix)
{
int i;
int errs = 0;
int is_not_gitdir = !startup_info->have_repository;
int force_apply = 0;
+ int options = 0;
+ int read_stdin = 1;
+ struct apply_state state;
const char *whitespace_option = NULL;
0, option_parse_p },
OPT_BOOL(0, "no-add", &no_add,
N_("ignore additions made by the patch")),
- OPT_BOOL(0, "stat", &diffstat,
+ OPT_BOOL(0, "stat", &state.diffstat,
N_("instead of applying the patch, output diffstat for the input")),
OPT_NOOP_NOARG(0, "allow-binary-replacement"),
OPT_NOOP_NOARG(0, "binary"),
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,
+ OPT_BOOL(0, "cached", &state.cached,
N_("apply a patch without touching the working tree")),
OPT_BOOL(0, "unsafe-paths", &unsafe_paths,
N_("accept a patch that touches outside the working area")),
{ 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),
OPT_END()
};
- prefix = prefix_;
- prefix_length = prefix ? strlen(prefix) : 0;
- git_apply_config();
- if (apply_default_whitespace)
- parse_whitespace_option(apply_default_whitespace);
- if (apply_default_ignorewhitespace)
- parse_ignorewhitespace_option(apply_default_ignorewhitespace);
+ init_apply_state(&state, prefix);
- argc = parse_options(argc, argv, prefix, builtin_apply_options,
+ 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)
+ if (state.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 && (state.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 (state.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++) {
int fd;
if (!strcmp(arg, "-")) {
- errs |= apply_patch(0, "<stdin>", options);
+ errs |= apply_patch(&state, 0, "<stdin>", options);
read_stdin = 0;
continue;
- } else if (0 < prefix_length)
- arg = prefix_filename(prefix, prefix_length, arg);
+ } else if (0 < state.prefix_length)
+ arg = prefix_filename(state.prefix,
+ state.prefix_length,
+ arg);
fd = open(arg, O_RDONLY);
if (fd < 0)
die_errno(_("can't open patch '%s'"), arg);
read_stdin = 0;
set_default_whitespace_mode(whitespace_option);
- errs |= apply_patch(fd, arg, options);
+ errs |= apply_patch(&state, fd, arg, options);
close(fd);
}
set_default_whitespace_mode(whitespace_option);
if (read_stdin)
- errs |= apply_patch(0, "<stdin>", options);
+ errs |= apply_patch(&state, 0, "<stdin>", options);
if (whitespace_error) {
if (squelch_whitespace_errors &&
squelch_whitespace_errors < whitespace_error) {
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"));
}
+ clear_apply_state(&state);
+
return !!errs;
}