return external_diff_cmd;
}
-#define TEMPFILE_PATH_LEN 50
-
static struct diff_tempfile {
const char *name; /* filename external diff should read from */
char hex[41];
char mode[10];
- char tmp_path[TEMPFILE_PATH_LEN];
+ char tmp_path[PATH_MAX];
} diff_temp[2];
static int count_lines(const char *data, int size)
}
/*
- * Given a name and sha1 pair, if the dircache tells us the file in
+ * Given a name and sha1 pair, if the index tells us the file in
* the work tree has that object contents, return true, so that
* prepare_temp_file() does not have to inflate and extract.
*/
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)
}
}
else {
- char type[20];
+ enum object_type type;
struct sha1_size_cache *e;
+ if (size_only && use_size_cache &&
+ (e = locate_size_cache(s->sha1, 1, 0)) != NULL) {
+ s->size = e->size;
+ return 0;
+ }
+
if (size_only) {
- e = locate_size_cache(s->sha1, 1, 0);
- if (e) {
- s->size = e->size;
- return 0;
- }
- if (!sha1_object_info(s->sha1, type, &s->size))
+ type = sha1_object_info(s->sha1, &s->size);
+ if (use_size_cache && 0 < type)
locate_size_cache(s->sha1, 0, s->size);
}
else {
- s->data = read_sha1_file(s->sha1, type, &s->size);
+ s->data = read_sha1_file(s->sha1, &type, &s->size);
s->should_free = 1;
}
}
{
int fd;
- fd = git_mkstemp(temp->tmp_path, TEMPFILE_PATH_LEN, ".diff_XXXXXX");
+ fd = git_mkstemp(temp->tmp_path, PATH_MAX, ".diff_XXXXXX");
if (fd < 0)
die("unable to create temp-file");
if (write_in_full(fd, blob, size) != size)
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)
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,