int nparents, color_diff;
const char **label_path;
struct diff_words_data *diff_words;
+ int *found_changesp;
};
static void free_diff_words_data(struct emit_callback *ecbdata)
const char *set = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
+ *(ecbdata->found_changesp) = 1;
+
if (ecbdata->label_path[0]) {
const char *name_a_tab, *name_b_tab;
if (complete_rewrite) {
emit_rewrite_diff(name_a, name_b, one, two,
o->color_diff);
+ o->found_changes = 1;
goto free_ab_and_return;
}
}
else
printf("Binary files %s and %s differ\n",
lbl[0], lbl[1]);
+ o->found_changes = 1;
}
else {
/* Crazy xdl interfaces.. */
memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.label_path = lbl;
ecbdata.color_diff = o->color_diff;
+ ecbdata.found_changesp = &o->found_changes;
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
xecfg.ctxlen = o->context;
xecfg.flags = XDL_EMIT_FUNCNAMES;
return e;
}
+static int populate_from_stdin(struct diff_filespec *s)
+{
+#define INCREMENT 1024
+ char *buf;
+ unsigned long size;
+ int got;
+
+ size = 0;
+ buf = NULL;
+ while (1) {
+ buf = xrealloc(buf, size + INCREMENT);
+ got = xread(0, buf + size, INCREMENT);
+ if (!got)
+ break; /* EOF */
+ if (got < 0)
+ return error("error while reading from stdin %s",
+ strerror(errno));
+ size += got;
+ }
+ s->should_munmap = 0;
+ s->data = buf;
+ s->size = size;
+ s->should_free = 1;
+ return 0;
+}
+
/*
* While doing rename detection and pickaxe operation, we may need to
* grab the data for the blob (or file) for our own in-core comparison.
char *buf;
unsigned long size;
+ if (!strcmp(s->path, "-"))
+ return populate_from_stdin(s);
+
if (lstat(s->path, &st) < 0) {
if (errno == ENOENT) {
err_empty:
return err;
}
}
- s->size = st.st_size;
+ s->size = xsize_t(st.st_size);
if (!s->size)
goto empty;
if (size_only)
if (S_ISLNK(st.st_mode)) {
int ret;
char buf[PATH_MAX + 1]; /* ought to be SYMLINK_MAX */
+ size_t sz = xsize_t(st.st_size);
if (sizeof(buf) <= st.st_size)
die("symlink too long: %s", name);
- ret = readlink(name, buf, st.st_size);
+ ret = readlink(name, buf, sz);
if (ret < 0)
die("readlink(%s)", name);
- prep_temp_blob(temp, buf, st.st_size,
+ prep_temp_blob(temp, buf, sz,
(one->sha1_valid ?
one->sha1 : null_sha1),
(one->sha1_valid ?
if (DIFF_FILE_VALID(one)) {
if (!one->sha1_valid) {
struct stat st;
+ if (!strcmp(one->path, "-")) {
+ hashcpy(one->sha1, null_sha1);
+ return;
+ }
if (lstat(one->path, &st) < 0)
die("stat %s", one->path);
if (index_path(one->sha1, one->path, &st, 0))
if (options->abbrev <= 0 || 40 < options->abbrev)
options->abbrev = 40; /* full */
+ /*
+ * It does not make sense to show the first hit we happened
+ * to have found. It does not make sense not to return with
+ * exit code in such a case either.
+ */
+ if (options->quiet) {
+ options->output_format = DIFF_FORMAT_NO_OUTPUT;
+ options->exit_with_status = 1;
+ }
+
+ /*
+ * If we postprocess in diffcore, we cannot simply return
+ * upon the first hit. We need to run diff as usual.
+ */
+ if (options->pickaxe || options->filter)
+ options->quiet = 0;
+
return 0;
}
options->color_diff = options->color_diff_words = 1;
else if (!strcmp(arg, "--no-renames"))
options->detect_rename = 0;
+ else if (!strcmp(arg, "--exit-code"))
+ options->exit_with_status = 1;
+ else if (!strcmp(arg, "--quiet"))
+ options->quiet = 1;
else
return 0;
return 1;
/* user says num divided by scale and we say internally that
* is MAX_SCORE * num / scale.
*/
- return (num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale);
+ return (int)((num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale));
}
int diff_scoreopt_parse(const char *opt)
p->status = DIFF_STATUS_RENAMED;
}
else if (hashcmp(p->one->sha1, p->two->sha1) ||
- p->one->mode != p->two->mode)
+ p->one->mode != p->two->mode ||
+ is_null_sha1(p->one->sha1))
p->status = DIFF_STATUS_MODIFIED;
else {
/* This is a "no-change" entry and should not
void diffcore_std(struct diff_options *options)
{
+ if (options->quiet)
+ return;
if (options->break_opt != -1)
diffcore_break(options->break_opt);
if (options->detect_rename)
diffcore_order(options->orderfile);
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
-}
-
-void diffcore_std_no_resolve(struct diff_options *options)
-{
- if (options->pickaxe)
- diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
- if (options->orderfile)
- diffcore_order(options->orderfile);
- diffcore_apply_filter(options->filter);
+ options->has_changes = !!diff_queued_diff.nr;
}
+
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
fill_filespec(two, sha1, mode);
diff_queue(&diff_queued_diff, one, two);
+ options->has_changes = 1;
}
void diff_change(struct diff_options *options,
fill_filespec(two, new_sha1, new_mode);
diff_queue(&diff_queued_diff, one, two);
+ options->has_changes = 1;
}
void diff_unmerge(struct diff_options *options,