static int apply_with_reject;
static int apply_verbosely;
static int no_add;
-static int show_index_info;
+static const char *fake_ancestor;
static int line_termination = '\n';
static unsigned long p_context = ULONG_MAX;
static const char apply_usage[] =
unsigned int is_rename:1;
struct fragment *fragments;
char *result;
- unsigned long resultsize;
+ size_t resultsize;
char old_sha1_prefix[41];
char new_sha1_prefix[41];
struct patch *next;
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);
+ quote_c_style(patch->old_name, NULL, output, 0);
fputs(" => ", output);
- write_name_quoted(NULL, 0, patch->new_name, 1, output);
- }
- else {
+ quote_c_style(patch->new_name, NULL, output, 0);
+ } else {
const char *n = patch->new_name;
if (!n)
n = patch->old_name;
- write_name_quoted(NULL, 0, n, 1, output);
+ quote_c_style(n, NULL, output, 0);
}
fputs(post, output);
}
#define CHUNKSIZE (8192)
#define SLOP (16)
-static void *read_patch_file(int fd, unsigned long *sizep)
+static void read_patch_file(struct strbuf *sb, int fd)
{
- struct strbuf buf;
-
- strbuf_init(&buf, 0);
- if (strbuf_read(&buf, fd, 0) < 0)
+ if (strbuf_read(sb, fd, 0) < 0)
die("git-apply: read returned %s", strerror(errno));
- *sizep = buf.len;
/*
* Make sure that we have some slop in the buffer
* so that we can do speculative "memcmp" etc, and
* see to it that it is NUL-filled.
*/
- strbuf_grow(&buf, SLOP);
- memset(buf.buf + buf.len, 0, SLOP);
- return strbuf_detach(&buf);
+ strbuf_grow(sb, SLOP);
+ memset(sb->buf + sb->len, 0, SLOP);
}
static unsigned long linelen(const char *buffer, unsigned long size)
{
int len;
const char *start = line;
- char *name;
if (*line == '"') {
+ struct strbuf name;
+
/* Proposed "new-style" GNU patch/diff format; see
* http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
*/
- name = unquote_c_style(line, NULL);
- if (name) {
- char *cp = name;
- while (p_value) {
+ strbuf_init(&name, 0);
+ if (!unquote_c_style(&name, line, NULL)) {
+ char *cp;
+
+ for (cp = name.buf; p_value; p_value--) {
cp = strchr(cp, '/');
if (!cp)
break;
cp++;
- p_value--;
}
if (cp) {
/* name can later be freed, so we need
* to memmove, not just return cp
*/
- memmove(name, cp, strlen(cp) + 1);
+ strbuf_remove(&name, 0, cp - name.buf);
free(def);
- return name;
- }
- else {
- free(name);
- name = NULL;
+ return strbuf_detach(&name, NULL);
}
}
+ strbuf_release(&name);
}
for (;;) {
int deflen = strlen(def);
if (deflen < len && !strncmp(start, def, deflen))
return def;
+ free(def);
}
- name = xmalloc(len + 1);
- memcpy(name, start, len);
- name[len] = 0;
- free(def);
- return name;
+ return xmemdupz(start, len);
}
static int count_slashes(const char *cp)
*/
static char *git_header_name(char *line, int llen)
{
- int len;
const char *name;
const char *second = NULL;
+ size_t len;
line += strlen("diff --git ");
llen -= strlen("diff --git ");
if (*line == '"') {
const char *cp;
- char *first = unquote_c_style(line, &second);
- if (!first)
- return NULL;
+ struct strbuf first;
+ struct strbuf sp;
+
+ strbuf_init(&first, 0);
+ strbuf_init(&sp, 0);
+
+ if (unquote_c_style(&first, line, &second))
+ goto free_and_fail1;
/* advance to the first slash */
- cp = stop_at_slash(first, strlen(first));
- if (!cp || cp == first) {
- /* we do not accept absolute paths */
- free_first_and_fail:
- free(first);
- return NULL;
- }
- len = strlen(cp+1);
- memmove(first, cp+1, len+1); /* including NUL */
+ cp = stop_at_slash(first.buf, first.len);
+ /* we do not accept absolute paths */
+ if (!cp || cp == first.buf)
+ goto free_and_fail1;
+ strbuf_remove(&first, 0, cp + 1 - first.buf);
/* second points at one past closing dq of name.
* find the second name.
second++;
if (line + llen <= second)
- goto free_first_and_fail;
+ goto free_and_fail1;
if (*second == '"') {
- char *sp = unquote_c_style(second, NULL);
- if (!sp)
- goto free_first_and_fail;
- cp = stop_at_slash(sp, strlen(sp));
- if (!cp || cp == sp) {
- free_both_and_fail:
- free(sp);
- goto free_first_and_fail;
- }
+ if (unquote_c_style(&sp, second, NULL))
+ goto free_and_fail1;
+ cp = stop_at_slash(sp.buf, sp.len);
+ if (!cp || cp == sp.buf)
+ goto free_and_fail1;
/* They must match, otherwise ignore */
- if (strcmp(cp+1, first))
- goto free_both_and_fail;
- free(sp);
- return first;
+ if (strcmp(cp + 1, first.buf))
+ goto free_and_fail1;
+ strbuf_release(&sp);
+ return strbuf_detach(&first, NULL);
}
/* unquoted second */
cp = stop_at_slash(second, line + llen - second);
if (!cp || cp == second)
- goto free_first_and_fail;
+ goto free_and_fail1;
cp++;
- if (line + llen - cp != len + 1 ||
- memcmp(first, cp, len))
- goto free_first_and_fail;
- return first;
+ if (line + llen - cp != first.len + 1 ||
+ memcmp(first.buf, cp, first.len))
+ goto free_and_fail1;
+ return strbuf_detach(&first, NULL);
+
+ free_and_fail1:
+ strbuf_release(&first);
+ strbuf_release(&sp);
+ return NULL;
}
/* unquoted first name */
name = stop_at_slash(line, llen);
if (!name || name == line)
return NULL;
-
name++;
/* since the first name is unquoted, a dq if exists must be
*/
for (second = name; second < line + llen; second++) {
if (*second == '"') {
- const char *cp = second;
+ struct strbuf sp;
const char *np;
- char *sp = unquote_c_style(second, NULL);
-
- if (!sp)
- return NULL;
- np = stop_at_slash(sp, strlen(sp));
- if (!np || np == sp) {
- free_second_and_fail:
- free(sp);
- return NULL;
- }
+
+ strbuf_init(&sp, 0);
+ if (unquote_c_style(&sp, second, NULL))
+ goto free_and_fail2;
+
+ np = stop_at_slash(sp.buf, sp.len);
+ if (!np || np == sp.buf)
+ goto free_and_fail2;
np++;
- len = strlen(np);
- if (len < cp - name &&
+
+ len = sp.buf + sp.len - np;
+ if (len < second - name &&
!strncmp(np, name, len) &&
isspace(name[len])) {
/* Good */
- memmove(sp, np, len + 1);
- return sp;
+ strbuf_remove(&sp, 0, np - sp.buf);
+ return strbuf_detach(&sp, NULL);
}
- goto free_second_and_fail;
+
+ free_and_fail2:
+ strbuf_release(&sp);
+ return NULL;
}
}
break;
}
if (second[len] == '\n' && !memcmp(name, second, len)) {
- char *ret = xmalloc(len + 1);
- memcpy(ret, name, len);
- ret[len] = 0;
- return ret;
+ return xmemdupz(name, len);
}
}
}
static void show_stats(struct patch *patch)
{
- const char *prefix = "";
- char *name = patch->new_name;
- char *qname = NULL;
- int len, max, add, del, total;
+ struct strbuf qname;
+ char *cp = patch->new_name ? patch->new_name : patch->old_name;
+ int max, add, del;
- if (!name)
- name = patch->old_name;
-
- if (0 < (len = quote_c_style(name, NULL, NULL, 0))) {
- qname = xmalloc(len + 1);
- quote_c_style(name, qname, NULL, 0);
- name = qname;
- }
+ strbuf_init(&qname, 0);
+ quote_c_style(cp, &qname, NULL, 0);
/*
* "scale" the filename
*/
- len = strlen(name);
max = max_len;
if (max > 50)
max = 50;
- if (len > max) {
- char *slash;
- prefix = "...";
- max -= 3;
- name += len - max;
- slash = strchr(name, '/');
- if (slash)
- name = slash;
+
+ if (qname.len > max) {
+ cp = strchr(qname.buf + qname.len + 3 - max, '/');
+ if (!cp)
+ cp = qname.buf + qname.len + 3 - max;
+ strbuf_splice(&qname, 0, cp - qname.buf, "...", 3);
}
- len = max;
+
+ if (patch->is_binary) {
+ printf(" %-*s | Bin\n", max, qname.buf);
+ strbuf_release(&qname);
+ return;
+ }
+
+ printf(" %-*s |", max, qname.buf);
+ strbuf_release(&qname);
/*
* scale the add/delete
*/
- max = max_change;
- if (max + len > 70)
- max = 70 - len;
-
+ max = max + max_change > 70 ? 70 - max : max_change;
add = patch->lines_added;
del = patch->lines_deleted;
- total = add + del;
if (max_change > 0) {
- total = (total * max + max_change / 2) / max_change;
+ int total = ((add + del) * max + max_change / 2) / max_change;
add = (add * max + max_change / 2) / max_change;
del = total - add;
}
- if (patch->is_binary)
- printf(" %s%-*s | Bin\n", prefix, len, name);
- else
- printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
- len, name, patch->lines_added + patch->lines_deleted,
- add, pluses, del, minuses);
- free(qname);
+ printf("%5d %.*s%.*s\n", patch->lines_added + patch->lines_deleted,
+ add, pluses, del, minuses);
}
static int read_old_data(struct stat *st, const char *path, struct strbuf *buf)
{
- int fd;
-
switch (st->st_mode & S_IFMT) {
case S_IFLNK:
strbuf_grow(buf, st->st_size);
strbuf_setlen(buf, st->st_size);
return 0;
case S_IFREG:
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return error("unable to open %s", path);
- if (strbuf_read(buf, fd, st->st_size) < 0) {
- close(fd);
- return -1;
- }
- close(fd);
+ if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
+ return error("unable to open or read %s", path);
convert_to_git(path, buf->buf, buf->len, buf);
return 0;
default:
if (apply_fragments(&buf, patch) < 0)
return -1; /* note with --reject this succeeds. */
- patch->result = buf.buf;
- patch->resultsize = buf.len;
+ patch->result = strbuf_detach(&buf, &patch->resultsize);
if (0 < patch->is_delete && patch->resultsize)
return error("removal patch leaves file contents");
return -1;
return 0;
}
- return ce_match_stat(ce, st, 1);
+ return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID);
}
static int check_patch(struct patch *patch, struct patch *prev_patch)
return 0;
}
-static void show_index_list(struct patch *list)
+/* Build an index that contains the just the files needed for a 3way merge */
+static void build_fake_ancestor(struct patch *list, const char *filename)
{
struct patch *patch;
+ struct index_state result = { 0 };
+ int fd;
/* Once we start supporting the reverse patch, it may be
* worth showing the new sha1 prefix, but until then...
for (patch = list; patch; patch = patch->next) {
const unsigned char *sha1_ptr;
unsigned char sha1[20];
+ struct cache_entry *ce;
const char *name;
name = patch->old_name ? patch->old_name : patch->new_name;
if (0 < patch->is_new)
- sha1_ptr = null_sha1;
+ continue;
else if (get_sha1(patch->old_sha1_prefix, sha1))
/* git diff has no index line for mode/type changes */
if (!patch->lines_added && !patch->lines_deleted) {
else
sha1_ptr = sha1;
- printf("%06o %s ",patch->old_mode, sha1_to_hex(sha1_ptr));
- if (line_termination && quote_c_style(name, NULL, NULL, 0))
- quote_c_style(name, NULL, stdout, 0);
- else
- fputs(name, stdout);
- putchar(line_termination);
+ ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0);
+ if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))
+ die ("Could not add %s to temporary index", name);
}
+
+ fd = open(filename, O_WRONLY | O_CREAT, 0666);
+ if (fd < 0 || write_index(&result, fd) || close(fd))
+ die ("Could not write temporary index to %s", filename);
+
+ discard_index(&result);
}
static void stat_patch_list(struct patch *patch)
if (patch->is_binary)
printf("-\t-\t");
else
- printf("%d\t%d\t",
- patch->lines_added, patch->lines_deleted);
- if (line_termination && quote_c_style(name, NULL, NULL, 0))
- quote_c_style(name, NULL, stdout, 0);
- else
- fputs(name, stdout);
- putchar(line_termination);
+ printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
+ write_name_quoted(name, stdout, line_termination);
}
}
static int apply_patch(int fd, const char *filename, int inaccurate_eof)
{
- unsigned long offset, size;
- char *buffer = read_patch_file(fd, &size);
+ size_t offset;
+ struct strbuf buf;
struct patch *list = NULL, **listp = &list;
int skipped_patch = 0;
+ strbuf_init(&buf, 0);
patch_input_file = filename;
- if (!buffer)
- return -1;
+ read_patch_file(&buf, fd);
offset = 0;
- while (size > 0) {
+ while (offset < buf.len) {
struct patch *patch;
int nr;
patch = xcalloc(1, sizeof(*patch));
patch->inaccurate_eof = inaccurate_eof;
- nr = parse_chunk(buffer + offset, size, patch);
+ nr = parse_chunk(buf.buf + offset, buf.len - offset, patch);
if (nr < 0)
break;
if (apply_in_reverse)
skipped_patch++;
}
offset += nr;
- size -= nr;
}
if (whitespace_error && (new_whitespace == error_on_whitespace))
if (apply && write_out_results(list, skipped_patch))
exit(1);
- if (show_index_info)
- show_index_list(list);
+ if (fake_ancestor)
+ build_fake_ancestor(list, fake_ancestor);
if (diffstat)
stat_patch_list(list);
if (summary)
summary_patch_list(list);
- free(buffer);
+ strbuf_release(&buf);
return 0;
}
apply = 1;
continue;
}
- if (!strcmp(arg, "--index-info")) {
+ if (!strcmp(arg, "--build-fake-ancestor")) {
apply = 0;
- show_index_info = 1;
+ if (++i >= argc)
+ die ("need a filename");
+ fake_ancestor = argv[i];
continue;
}
if (!strcmp(arg, "-z")) {