Improved 'dependency cycle' warning

From now on libalpm informs user about packages which will be
installed/removed in wrong order.

Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 0c79a25b..ac07c0b7 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -187,7 +187,14 @@ alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, pmtranstype_t mode)
 				vertex = nextchild;
 			}
 			else if(nextchild->state == -1) {
-				_alpm_log(PM_LOG_WARNING, _("dependency cycle detected\n"));
+				pmpkg_t *vertexpkg = vertex->data;
+				pmpkg_t *childpkg = nextchild->data;
+				_alpm_log(PM_LOG_WARNING, _("dependency cycle detected:\n"));
+				if(mode == PM_TRANS_TYPE_REMOVE) {
+					_alpm_log(PM_LOG_WARNING, _("%s will be removed after its %s dependency\n"), vertexpkg->name, childpkg->name);
+				} else {
+					_alpm_log(PM_LOG_WARNING, _("%s will be installed before its %s dependency\n"), vertexpkg->name, childpkg->name);
+				}
 			}
 		}
 		if(!found) {