--------
[verse]
'git-apply' [--stat] [--numstat] [--summary] [--check] [--index] [--apply]
- [--no-add] [--index-info] [--allow-binary-replacement]
- [--reverse] [--reject] [-z] [-pNUM]
- [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>]
- [<patch>...]
+ [--no-add] [--index-info] [--allow-binary-replacement | --binary]
+ [-R | --reverse] [--reject] [-z] [-pNUM] [-CNUM] [--inaccurate-eof]
+ [--whitespace=<nowarn|warn|error|error-all|strip>] [--exclude=PATH]
+ [
--cached] [--verbose] [<patch>...]
DESCRIPTION
-----------
up-to-date, it is flagged as an error. This flag also
causes the index file to be updated.
+--cached::
+ Apply a patch without touching the working tree. Instead, take the
+ cached data, apply the patch, and store the result in the index,
+ without using the working tree. This implies '--index'.
+
--index-info::
Newer git-diff output has embedded 'index information'
for each blob to help identify the original version that
the original version of the blob is available locally,
outputs information about them to the standard output.
---reverse::
+-R, --reverse::
Apply the patch in reverse.
--reject::
- For atomicity, `git apply` fails the whole patch and
+ For atomicity, gitlink:git-apply[1] by default fails the whole patch and
does not touch the working tree when some of the hunks
- do not apply by default. This option makes it apply
- parts of the patch that are applicable, and leave the
+ do not apply. This option makes it apply
- the parts of the patch that are applicable, and send the
- rejected hunks to the standard output of the command.
++ the parts of the patch that are applicable, and leave the
+ rejected hunks in corresponding *.rej files.
-z::
When showing the index information, do not munge paths,
ever ignored.
--apply::
- If you use any of the options marked ``Turns off
- "apply"'' above, git-apply reads and outputs the
+ If you use any of the options marked "Turns off
+ 'apply'" above, gitlink:git-apply[1] reads and outputs the
information you asked without actually applying the
patch. Give this flag after those flags to also apply
the patch.
the result with this option, which would apply the
deletion part but not addition part.
---allow-binary-replacement::
+--allow-binary-replacement, --binary::
When applying a patch, which is a git-enhanced patch
that was prepared to record the pre- and post-image object
name in full, and the path being patched exactly matches
result. This allows binary files to be patched in a
very limited way.
+--exclude=<path-pattern>::
+ Don't apply changes to files matching the given path pattern. This can
+ be useful when importing patchsets, where you want to exclude certain
+ files or directories.
+
--whitespace=<option>::
When applying a patch, detect a new or modified line
that ends with trailing whitespaces (this includes a
line that solely consists of whitespaces). By default,
the command outputs warning messages and applies the
patch.
- When `git-apply` is used for statistics and not applying a
+ When gitlink:git-apply[1] is used for statistics and not applying a
patch, it defaults to `nowarn`.
You can use different `<option>` to control this
behavior:
* `strip` outputs warnings for a few such errors, strips out the
trailing whitespaces and applies the patch.
+--inacurate-eof::
+ Under certain circumstances, some versions of diff do not correctly
+ detect a missing new-line at the end of the file. As a result, patches
+ created by such diff programs do not record incomplete lines
+ correctly. This option adds support for applying such patches by
+ working around this bug.
+
+--verbose::
+ Report progress to stderr. By default, only a message about the
+ current patch being applied will be printed. This option will cause
+ additional information to be reported.
Configuration
-------------
static int check;
static int apply = 1;
static int apply_in_reverse;
+ static int apply_with_reject;
+ static int apply_verbosely;
static int no_add;
static int show_index_info;
static int line_termination = '\n';
static unsigned long p_context = -1;
static const char apply_usage[] =
- "git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
+ "git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-
-reverse] [--reject] [--verbose] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
static enum whitespace_eol {
nowarn_whitespace,
unsigned long newpos, newlines;
const char *patch;
int size;
+ int rejected;
struct fragment *next;
};
char *new_name, *old_name, *def_name;
unsigned int old_mode, new_mode;
int is_rename, is_copy, is_new, is_delete, is_binary;
+ int rejected;
unsigned long deflate_origlen;
int lines_added, lines_deleted;
int score;
struct patch *next;
};
+ static void say_patch_name(FILE *output, const char *pre, struct patch *patch, const char *post)
+ {
+ fputs(pre, output);
+ if (patch->old_name && patch->new_name &&
+ strcmp(patch->old_name, patch->new_name)) {
+ write_name_quoted(NULL, 0, patch->old_name, 1, output);
+ fputs(" => ", output);
+ write_name_quoted(NULL, 0, patch->new_name, 1, output);
+ }
+ else {
+ const char *n = patch->new_name;
+ if (!n)
+ n = patch->old_name;
+ write_name_quoted(NULL, 0, n, 1, output);
+ }
+ fputs(post, output);
+ }
+
#define CHUNKSIZE (8192)
#define SLOP (16)
* form.
*/
for (len = 0 ; ; len++) {
- char c = name[len];
-
- switch (c) {
+ switch (name[len]) {
default:
continue;
case '\n':
llen = linelen(buffer, size);
used += llen;
linenr++;
- if (llen == 1)
+ if (llen == 1) {
+ /* consume the blank line */
+ buffer++;
+ size--;
break;
+ }
/* Minimum line is "A00000\n" which is 7-byte long,
* and the line length must be multiple of 5 plus 2.
*/
lines = 0;
pos = frag->newpos;
for (;;) {
- offset = find_offset(buf, desc->size, oldlines, oldsize, pos, &lines);
+ offset = find_offset(buf, desc->size,
+ oldlines, oldsize, pos, &lines);
if (match_end && offset + oldsize != desc->size)
offset = -1;
if (match_beginning && offset)
/* Warn if it was necessary to reduce the number
* of context lines.
*/
- if ((leading != frag->leading) || (trailing != frag->trailing))
- fprintf(stderr, "Context reduced to (%ld/%ld) to apply fragment at %d\n",
+ if ((leading != frag->leading) ||
+ (trailing != frag->trailing))
+ fprintf(stderr, "Context reduced to (%ld/%ld)"
+ " to apply fragment at %d\n",
leading, trailing, pos + lines);
if (size > alloc) {
desc->buffer = buf;
}
desc->size = size;
- memmove(buf + offset + newsize, buf + offset + oldsize, size - offset - newsize);
+ memmove(buf + offset + newsize,
+ buf + offset + oldsize,
+ size - offset - newsize);
memcpy(buf + offset, newlines, newsize);
offset = 0;
"without the reverse hunk to '%s'",
patch->new_name
? patch->new_name : patch->old_name);
- fragment = fragment;
+ fragment = fragment->next;
}
data = (void*) fragment->patch;
switch (fragment->binary_patch_method) {
write_sha1_file_prepare(desc->buffer, desc->size, blob_type,
sha1, hdr, &hdrlen);
if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix))
- return error("binary patch to '%s' creates incorrect result", name);
+ return error("binary patch to '%s' creates incorrect result (expecting %s, got %s)", name, patch->new_sha1_prefix, sha1_to_hex(sha1));
}
return 0;
return apply_binary(desc, patch);
while (frag) {
- if (apply_one_fragment(desc, frag, patch->inaccurate_eof) < 0)
- return error("patch failed: %s:%ld",
- name, frag->oldpos);
+ if (apply_one_fragment(desc, frag, patch->inaccurate_eof)) {
+ error("patch failed: %s:%ld", name, frag->oldpos);
+ if (!apply_with_reject)
+ return -1;
+ frag->rejected = 1;
+ }
frag = frag->next;
}
return 0;
desc.size = size;
desc.alloc = alloc;
desc.buffer = buf;
+
if (apply_fragments(&desc, patch) < 0)
- return -1;
+ return -1; /* note with --reject this succeeds. */
/* NUL terminate the result */
if (desc.alloc <= desc.size)
struct cache_entry *ce = NULL;
int ok_if_exists;
+ patch->rejected = 1; /* we will drop this after we succeed */
if (old_name) {
int changed = 0;
int stat_ret = 0;
if (apply_data(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)
{
struct patch *prev_patch = NULL;
- int error = 0;
+ int err = 0;
for (prev_patch = NULL; patch ; patch = patch->next) {
- error |= check_patch(patch, prev_patch);
+ if (apply_verbosely)
+ say_patch_name(stderr,
+ "Checking patch ", patch, "...\n");
+ err |= check_patch(patch, prev_patch);
prev_patch = patch;
}
- return error;
+ return err;
}
static void show_index_list(struct patch *list)
if (phase == 0)
remove_file(patch);
if (phase == 1)
- create_file(patch);
+ create_file(patch);
+ }
+
+ static int write_out_one_reject(struct patch *patch)
+ {
+ FILE *rej;
+ char namebuf[PATH_MAX];
+ struct fragment *frag;
+ int cnt = 0;
+
+ for (cnt = 0, frag = patch->fragments; frag; frag = frag->next) {
+ if (!frag->rejected)
+ continue;
+ cnt++;
+ }
+
+ if (!cnt) {
+ if (apply_verbosely)
+ say_patch_name(stderr,
+ "Applied patch ", patch, " cleanly.\n");
+ return 0;
+ }
+
+ /* This should not happen, because a removal patch that leaves
+ * contents are marked "rejected" at the patch level.
+ */
+ if (!patch->new_name)
+ die("internal error");
+
+ /* Say this even without --verbose */
+ say_patch_name(stderr, "Applying patch ", patch, " with");
+ fprintf(stderr, " %d rejects...\n", cnt);
+
+ cnt = strlen(patch->new_name);
+ if (ARRAY_SIZE(namebuf) <= cnt + 5) {
+ cnt = ARRAY_SIZE(namebuf) - 5;
+ fprintf(stderr,
+ "warning: truncating .rej filename to %.*s.rej",
+ cnt - 1, patch->new_name);
+ }
+ memcpy(namebuf, patch->new_name, cnt);
+ memcpy(namebuf + cnt, ".rej", 5);
+
+ rej = fopen(namebuf, "w");
+ if (!rej)
+ return error("cannot open %s: %s", namebuf, strerror(errno));
+
+ /* Normal git tools never deal with .rej, so do not pretend
+ * this is a git patch by saying --git nor give extended
+ * headers. While at it, maybe please "kompare" that wants
+ * the trailing TAB and some garbage at the end of line ;-).
+ */
+ fprintf(rej, "diff a/%s b/%s\t(rejected hunks)\n",
+ patch->new_name, patch->new_name);
+ for (cnt = 1, frag = patch->fragments;
+ frag;
+ cnt++, frag = frag->next) {
+ if (!frag->rejected) {
+ fprintf(stderr, "Hunk #%d applied cleanly.\n", cnt);
+ continue;
+ }
+ fprintf(stderr, "Rejected hunk #%d.\n", cnt);
+ fprintf(rej, "%.*s", frag->size, frag->patch);
+ if (frag->patch[frag->size-1] != '\n')
+ fputc('\n', rej);
+ }
+ fclose(rej);
+ return -1;
}
- static void write_out_results(struct patch *list, int skipped_patch)
+ static int write_out_results(struct patch *list, int skipped_patch)
{
int phase;
+ int errs = 0;
+ struct patch *l;
if (!list && !skipped_patch)
- die("No changes");
+ return error("No changes");
for (phase = 0; phase < 2; phase++) {
- struct patch *l = list;
+ l = list;
while (l) {
- write_out_one_result(l, phase);
+ if (l->rejected)
+ errs = 1;
+ else {
+ write_out_one_result(l, phase);
+ if (phase == 1 && write_out_one_reject(l))
+ errs = 1;
+ }
l = l->next;
}
}
+ return errs;
}
static struct lock_file lock_file;
die("unable to read index file");
}
- if ((check || apply) && check_patch_list(list) < 0)
+ if ((check || apply) &&
+ check_patch_list(list) < 0 &&
+ !apply_with_reject)
exit(1);
- if (apply)
- write_out_results(list, skipped_patch);
+ if (apply && write_out_results(list, skipped_patch))
+ exit(1);
if (show_index_info)
show_index_list(list);
int i;
int read_stdin = 1;
int inaccurate_eof = 0;
+ int errs = 0;
const char *whitespace_option = NULL;
int fd;
if (!strcmp(arg, "-")) {
- apply_patch(0, "<stdin>", inaccurate_eof);
+ errs |= apply_patch(0, "<stdin>", inaccurate_eof);
read_stdin = 0;
continue;
}
apply_in_reverse = 1;
continue;
}
+ if (!strcmp(arg, "--reject")) {
+ apply = apply_with_reject = apply_verbosely = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--verbose")) {
+ apply_verbosely = 1;
+ continue;
+ }
if (!strcmp(arg, "--inaccurate-eof")) {
inaccurate_eof = 1;
continue;
usage(apply_usage);
read_stdin = 0;
set_default_whitespace_mode(whitespace_option);
- apply_patch(fd, arg, inaccurate_eof);
+ errs |= apply_patch(fd, arg, inaccurate_eof);
close(fd);
}
set_default_whitespace_mode(whitespace_option);
if (read_stdin)
- apply_patch(0, "<stdin>", inaccurate_eof);
+ errs |= apply_patch(0, "<stdin>", inaccurate_eof);
if (whitespace_error) {
if (squelch_whitespace_errors &&
squelch_whitespace_errors < whitespace_error) {
int squelched =
whitespace_error - squelch_whitespace_errors;
- fprintf(stderr, "warning: squelched %d whitespace error%s\n",
+ fprintf(stderr, "warning: squelched %d "
+ "whitespace error%s\n",
squelched,
squelched == 1 ? "" : "s");
}
die("Unable to write new index file");
}
- return 0;
+ return !!errs;
}
return deflated;
}
- static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
+ static void emit_binary_diff_body(mmfile_t *one, mmfile_t *two)
{
void *cp;
void *delta;
unsigned long deflate_size;
unsigned long data_size;
- printf("GIT binary patch\n");
/* We could do deflated delta, or we could do just deflated two,
* whichever is smaller.
*/
free(data);
}
+ static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
+ {
+ printf("GIT binary patch\n");
+ emit_binary_diff_body(one, two);
+ emit_binary_diff_body(two, one);
+ }
+
#define FIRST_FEW_BYTES 8000
static int mmfile_is_binary(mmfile_t *mf)
{
{
if (mode) {
spec->mode = canon_mode(mode);
- memcpy(spec->sha1, sha1, 20);
+ hashcpy(spec->sha1, sha1);
spec->sha1_valid = !is_null_sha1(sha1);
}
}
if ((lstat(name, &st) < 0) ||
!S_ISREG(st.st_mode) || /* careful! */
ce_match_stat(ce, &st, 0) ||
- memcmp(sha1, ce->sha1, 20))
+ hashcmp(sha1, ce->sha1))
return 0;
/* we return 1 only when we can stat, it is a regular file,
* stat information matches, and sha1 recorded in the cache
while (last > first) {
int cmp, next = (last + first) >> 1;
e = sha1_size_cache[next];
- cmp = memcmp(e->sha1, sha1, 20);
+ cmp = hashcmp(e->sha1, sha1);
if (!cmp)
return e;
if (cmp < 0) {
sizeof(*sha1_size_cache));
e = xmalloc(sizeof(struct sha1_size_cache));
sha1_size_cache[first] = e;
- memcpy(e->sha1, sha1, 20);
+ hashcpy(e->sha1, sha1);
e->size = size;
return e;
}
}
}
else
- memset(one->sha1, 0, 20);
+ hashclr(one->sha1);
}
static void run_diff(struct diff_filepair *p, struct diff_options *o)
;
}
- if (memcmp(one->sha1, two->sha1, 20)) {
+ if (hashcmp(one->sha1, two->sha1)) {
int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
len += snprintf(msg + len, sizeof(msg) - len,
* dealing with a change.
*/
if (one->sha1_valid && two->sha1_valid &&
- !memcmp(one->sha1, two->sha1, sizeof(one->sha1)))
+ !hashcmp(one->sha1, two->sha1))
return 1; /* no change */
if (!one->sha1_valid && !two->sha1_valid)
return 1; /* both look at the same file on the filesystem. */
if (!p->status)
p->status = DIFF_STATUS_RENAMED;
}
- else if (memcmp(p->one->sha1, p->two->sha1, 20) ||
+ else if (hashcmp(p->one->sha1, p->two->sha1) ||
p->one->mode != p->two->mode)
p->status = DIFF_STATUS_MODIFIED;
else {