return name;
}
-static char *find_name(const char *line, char *def, int p_value, int terminate)
+static char *find_name_gnu(const char *line, char *def, int p_value)
{
- int len;
- const char *start = NULL;
+ struct strbuf name = STRBUF_INIT;
+ char *cp;
- if (p_value == 0)
- start = line;
+ /*
+ * Proposed "new-style" GNU patch/diff format; see
+ * http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
+ */
+ if (unquote_c_style(&name, line, NULL)) {
+ strbuf_release(&name);
+ return NULL;
+ }
- if (*line == '"') {
- struct strbuf name = STRBUF_INIT;
+ for (cp = name.buf; p_value; p_value--) {
+ cp = strchr(cp, '/');
+ if (!cp) {
+ strbuf_release(&name);
+ return NULL;
+ }
+ cp++;
+ }
- /*
- * Proposed "new-style" GNU patch/diff format; see
- * http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
- */
- if (!unquote_c_style(&name, line, NULL)) {
- char *cp;
+ /* name can later be freed, so we need
+ * to memmove, not just return cp
+ */
+ strbuf_remove(&name, 0, cp - name.buf);
+ free(def);
+ if (root)
+ strbuf_insert(&name, 0, root, root_len);
+ return squash_slash(strbuf_detach(&name, NULL));
+}
- for (cp = name.buf; p_value; p_value--) {
- cp = strchr(cp, '/');
- if (!cp)
- break;
- cp++;
- }
- if (cp) {
- /* name can later be freed, so we need
- * to memmove, not just return cp
- */
- strbuf_remove(&name, 0, cp - name.buf);
- free(def);
- if (root)
- strbuf_insert(&name, 0, root, root_len);
- return squash_slash(strbuf_detach(&name, NULL));
- }
- }
- strbuf_release(&name);
+static size_t tz_len(const char *line, size_t len)
+{
+ const char *tz, *p;
+
+ if (len < strlen(" +0500") || line[len-strlen(" +0500")] != ' ')
+ return 0;
+ tz = line + len - strlen(" +0500");
+
+ if (tz[1] != '+' && tz[1] != '-')
+ return 0;
+
+ for (p = tz + 2; p != line + len; p++)
+ if (!isdigit(*p))
+ return 0;
+
+ return line + len - tz;
+}
+
+static size_t date_len(const char *line, size_t len)
+{
+ const char *date, *p;
+
+ if (len < strlen("72-02-05") || line[len-strlen("-05")] != '-')
+ return 0;
+ p = date = line + len - strlen("72-02-05");
+
+ if (!isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
+ !isdigit(*p++) || !isdigit(*p++)) /* Not a date. */
+ return 0;
+
+ if (date - line >= strlen("19") &&
+ isdigit(date[-1]) && isdigit(date[-2])) /* 4-digit year */
+ date -= strlen("19");
+
+ return line + len - date;
+}
+
+static size_t short_time_len(const char *line, size_t len)
+{
+ const char *time, *p;
+
+ if (len < strlen(" 07:01:32") || line[len-strlen(":32")] != ':')
+ return 0;
+ p = time = line + len - strlen(" 07:01:32");
+
+ /* Permit 1-digit hours? */
+ if (*p++ != ' ' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
+ !isdigit(*p++) || !isdigit(*p++)) /* Not a time. */
+ return 0;
+
+ return line + len - time;
+}
+
+static size_t fractional_time_len(const char *line, size_t len)
+{
+ const char *p;
+ size_t n;
+
+ /* Expected format: 19:41:17.620000023 */
+ if (!len || !isdigit(line[len - 1]))
+ return 0;
+ p = line + len - 1;
+
+ /* Fractional seconds. */
+ while (p > line && isdigit(*p))
+ p--;
+ if (*p != '.')
+ return 0;
+
+ /* Hours, minutes, and whole seconds. */
+ n = short_time_len(line, p - line);
+ if (!n)
+ return 0;
+
+ return line + len - p + n;
+}
+
+static size_t trailing_spaces_len(const char *line, size_t len)
+{
+ const char *p;
+
+ /* Expected format: ' ' x (1 or more) */
+ if (!len || line[len - 1] != ' ')
+ return 0;
+
+ p = line + len;
+ while (p != line) {
+ p--;
+ if (*p != ' ')
+ return line + len - (p + 1);
}
- for (;;) {
+ /* All spaces! */
+ return len;
+}
+
+static size_t diff_timestamp_len(const char *line, size_t len)
+{
+ const char *end = line + len;
+ size_t n;
+
+ /*
+ * Posix: 2010-07-05 19:41:17
+ * GNU: 2010-07-05 19:41:17.620000023 -0500
+ */
+
+ if (!isdigit(end[-1]))
+ return 0;
+
+ n = tz_len(line, end - line);
+ end -= n;
+
+ n = short_time_len(line, end - line);
+ if (!n)
+ n = fractional_time_len(line, end - line);
+ end -= n;
+
+ n = date_len(line, end - line);
+ if (!n) /* No date. Too bad. */
+ return 0;
+ end -= n;
+
+ if (end == line) /* No space before date. */
+ return 0;
+ if (end[-1] == '\t') { /* Success! */
+ end--;
+ return line + len - end;
+ }
+ if (end[-1] != ' ') /* No space before date. */
+ return 0;
+
+ /* Whitespace damage. */
+ end -= trailing_spaces_len(line, end - line);
+ return line + len - end;
+}
+
+static char *find_name_common(const char *line, char *def, int p_value,
+ const char *end, int terminate)
+{
+ int len;
+ const char *start = NULL;
+
+ if (p_value == 0)
+ start = line;
+ while (line != end) {
char c = *line;
- if (isspace(c)) {
+ if (!end && isspace(c)) {
if (c == '\n')
break;
if (name_terminate(start, line-start, c, terminate))
return squash_slash(xmemdupz(start, len));
}
+static char *find_name(const char *line, char *def, int p_value, int terminate)
+{
+ if (*line == '"') {
+ char *name = find_name_gnu(line, def, p_value);
+ if (name)
+ return name;
+ }
+
+ return find_name_common(line, def, p_value, NULL, terminate);
+}
+
+static char *find_name_traditional(const char *line, char *def, int p_value)
+{
+ size_t len = strlen(line);
+ size_t date_len;
+
+ if (*line == '"') {
+ char *name = find_name_gnu(line, def, p_value);
+ if (name)
+ return name;
+ }
+
+ len = strchrnul(line, '\n') - line;
+ date_len = diff_timestamp_len(line, len);
+ if (!date_len)
+ return find_name_common(line, def, p_value, NULL, TERM_TAB);
+ len -= date_len;
+
+ return find_name_common(line, def, p_value, line + len, 0);
+}
+
static int count_slashes(const char *cp)
{
int cnt = 0;
if (is_dev_null(nameline))
return -1;
- name = find_name(nameline, NULL, 0, TERM_SPACE | TERM_TAB);
+ name = find_name_traditional(nameline, NULL, 0);
if (!name)
return -1;
cp = strchr(name, '/');
if (is_dev_null(first)) {
patch->is_new = 1;
patch->is_delete = 0;
- name = find_name(second, NULL, p_value, TERM_SPACE | TERM_TAB);
+ name = find_name_traditional(second, NULL, p_value);
patch->new_name = name;
} else if (is_dev_null(second)) {
patch->is_new = 0;
patch->is_delete = 1;
- name = find_name(first, NULL, p_value, TERM_SPACE | TERM_TAB);
+ name = find_name_traditional(first, NULL, p_value);
patch->old_name = name;
} else {
- name = find_name(first, NULL, p_value, TERM_SPACE | TERM_TAB);
- name = find_name(second, name, p_value, TERM_SPACE | TERM_TAB);
+ name = find_name_traditional(first, NULL, p_value);
+ name = find_name_traditional(second, name, p_value);
if (has_epoch_timestamp(first)) {
patch->is_new = 1;
patch->is_delete = 0;
unsigned long len;
void *dst;
+ if (!fragment)
+ return error("missing binary patch data for '%s'",
+ patch->new_name ?
+ patch->new_name :
+ patch->old_name);
+
/* Binary patch is irreversible without the optional second hunk */
if (apply_in_reverse) {
if (!fragment->next)