From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 11 Aug 2017 20:27:07 +0000 (-0700)
Subject: Merge branch 'jk/rev-list-empty-input'
X-Git-Tag: v2.15.0-rc0~184
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8fbaf0b13bc54819445f613e917c44ea52eef804;p=git

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

"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
---

8fbaf0b13bc54819445f613e917c44ea52eef804
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);