"[<common diff options>] <tree-ish> [<path>...]"
COMMON_DIFF_OPTIONS_HELP;
-int cmd_diff_index(int argc, const char **argv, char **envp)
+int cmd_diff_index(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
int cached = 0;
int i;
+ int result;
- git_config(git_diff_config);
- init_revisions(&rev);
+ init_revisions(&rev, prefix);
+ git_config(git_default_config); /* no "diff" UI options */
rev.abbrev = 0;
argc = setup_revisions(argc, argv, &rev, NULL);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
-
+
if (!strcmp(arg, "--cached"))
cached = 1;
else
usage(diff_cache_usage);
}
+ if (!rev.diffopt.output_format)
+ rev.diffopt.output_format = DIFF_FORMAT_RAW;
+
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.
*/
- if (!rev.pending_objects || rev.pending_objects->next ||
+ if (rev.pending.nr != 1 ||
rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
usage(diff_cache_usage);
- return run_diff_index(&rev, cached);
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
+ result = run_diff_index(&rev, cached);
+ return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
}