From: Junio C Hamano <gitster@pobox.com>
Date: Sun, 10 Sep 2017 08:02:48 +0000 (+0900)
Subject: Merge branch 'jk/rev-list-empty-input' into maint
X-Git-Tag: v2.14.2~41
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/c2a3bb47f0a5cf8537b3d79cd01b11a5726afb02

Merge branch 'jk/rev-list-empty-input' into maint

"git log --tag=no-such-tag" showed log starting from HEAD, which
has been fixed---it now shows nothing.

* jk/rev-list-empty-input:
revision: do not fallback to default when rev_input_given is set
rev-list: don't show usage when we see empty ref patterns
revision: add rev_input_given flag
t6018: flesh out empty input/output rev-list tests
---

c2a3bb47f0a5cf8537b3d79cd01b11a5726afb02
diff --cc builtin/rev-list.c
index e8f5048903,1e9cc59488..95b4128250
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@@ -350,9 -348,10 +350,10 @@@ int cmd_rev_list(int argc, const char *
  		/* Only --header was specified */
  		revs.commit_format = CMIT_FMT_RAW;
  
 -	if ((!revs.commits &&
 +	if ((!revs.commits && reflog_walk_empty(revs.reflog_info) &&
  	     (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) &&
- 	      !revs.pending.nr)) ||
+ 	      !revs.pending.nr) &&
+ 	     !revs.rev_input_given) ||
  	    revs.diff)
  		usage(rev_list_usage);