int diff_rename_limit_default = -1;
+int git_diff_config(const char *var, const char *value)
+{
+ if (!strcmp(var, "diff.renamelimit")) {
+ diff_rename_limit_default = git_config_int(var, value);
+ return 0;
+ }
+
+ return git_default_config(var, value);
+}
+
static char *quote_one(const char *str)
{
int needlen;
if (memcmp(one->sha1, two->sha1, 20)) {
char one_sha1[41];
- const char *index_fmt = o->full_index ? "index %s..%s" : "index %.7s..%.7s";
+ int abbrev = o->full_index ? 40 : DIFF_DEFAULT_INDEX_ABBREV;
memcpy(one_sha1, sha1_to_hex(one->sha1), 41);
len += snprintf(msg + len, sizeof(msg) - len,
- index_fmt, one_sha1, sha1_to_hex(two->sha1));
+ "index %.*s..%.*s",
+ abbrev, one_sha1, abbrev,
+ sha1_to_hex(two->sha1));
if (one->mode == two->mode)
len += snprintf(msg + len, sizeof(msg) - len,
" %06o", one->mode);
}
if (options->setup & DIFF_SETUP_USE_SIZE_CACHE)
use_size_cache = 1;
+ if (options->abbrev <= 0 || 40 < options->abbrev)
+ options->abbrev = 40; /* full */
return 0;
}
}
else if (!strcmp(arg, "--find-copies-harder"))
options->find_copies_harder = 1;
+ else if (!strcmp(arg, "--abbrev"))
+ options->abbrev = DIFF_DEFAULT_ABBREV;
+ else if (!strncmp(arg, "--abbrev=", 9))
+ options->abbrev = strtoul(arg + 9, NULL, 10);
else
return 0;
return 1;
static int parse_num(const char **cp_p)
{
- int num, scale, ch, cnt;
+ unsigned long num, scale;
+ int ch, dot;
const char *cp = *cp_p;
- cnt = num = 0;
+ num = 0;
scale = 1;
- while ('0' <= (ch = *cp) && ch <= '9') {
- if (cnt++ < 5) {
- /* We simply ignore more than 5 digits precision. */
- scale *= 10;
- num = num * 10 + ch - '0';
+ dot = 0;
+ for(;;) {
+ ch = *cp;
+ if ( !dot && ch == '.' ) {
+ scale = 1;
+ dot = 1;
+ } else if ( ch == '%' ) {
+ scale = dot ? scale*100 : 100;
+ cp++; /* % is always at the end */
+ break;
+ } else if ( ch >= '0' && ch <= '9' ) {
+ if ( scale < 100000 ) {
+ scale *= 10;
+ num = (num*10) + (ch-'0');
+ }
+ } else {
+ break;
}
cp++;
}
*cp_p = cp;
- /* special case: -M100 would mean 1.0 not 0.1 */
- if (num == 100 && scale == 1000)
- return MAX_SCORE;
-
/* user says num divided by scale and we say internally that
* is MAX_SCORE * num / scale.
*/
- return (MAX_SCORE * num / scale);
+ return (num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale);
}
int diff_scoreopt_parse(const char *opt)
free(p);
}
+/* This is different from find_unique_abbrev() in that
+ * it needs to deal with 0{40} SHA1.
+ */
+const char *diff_unique_abbrev(const unsigned char *sha1, int len)
+{
+ int abblen;
+ const char *abbrev;
+ if (len == 40)
+ return sha1_to_hex(sha1);
+
+ abbrev = find_unique_abbrev(sha1, len);
+ if (!abbrev) {
+ if (!memcmp(sha1, null_sha1, 20)) {
+ char *buf = sha1_to_hex(null_sha1);
+ if (len < 37)
+ strcpy(buf + len, "...");
+ return buf;
+ }
+ else
+ return sha1_to_hex(sha1);
+ }
+ abblen = strlen(abbrev);
+ if (abblen < 37) {
+ static char hex[41];
+ if (len < abblen && abblen <= len + 2)
+ sprintf(hex, "%s%.*s", abbrev, len+3-abblen, "..");
+ else
+ sprintf(hex, "%s...", abbrev);
+ return hex;
+ }
+ return sha1_to_hex(sha1);
+}
+
static void diff_flush_raw(struct diff_filepair *p,
int line_termination,
int inter_name_termination,
- int output_format)
+ struct diff_options *options)
{
int two_paths;
char status[10];
+ int abbrev = options->abbrev;
const char *path_one, *path_two;
+ int output_format = options->output_format;
path_one = p->one->path;
path_two = p->two->path;
}
if (output_format != DIFF_FORMAT_NAME_STATUS) {
printf(":%06o %06o %s ",
- p->one->mode, p->two->mode, sha1_to_hex(p->one->sha1));
- printf("%s ", sha1_to_hex(p->two->sha1));
+ p->one->mode, p->two->mode,
+ diff_unique_abbrev(p->one->sha1, abbrev));
+ printf("%s ",
+ diff_unique_abbrev(p->two->sha1, abbrev));
}
printf("%s%c%s", status, inter_name_termination, path_one);
if (two_paths)
case DIFF_FORMAT_NAME_STATUS:
diff_flush_raw(p, line_termination,
inter_name_termination,
- diff_output_format);
+ options);
break;
case DIFF_FORMAT_NAME:
diff_flush_name(p,