t6120-describe: correct test repo history graph in comment

At the top of 't6120-describe.sh' an ASCII graph illustrates the
repository's history used in this test script.  This graph is a bit
misleading, because it swapped the second merge commit's first and
second parents.

When describing/naming a commit it does make a difference which parent
is the first and which is the second/Nth, so update this graph to
accurately represent that second merge.

While at it, move this history graph from the 'test_description'
variable to a regular comment.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2019-11-12 11:38:09 +01:00 committed by Junio C Hamano
parent da72936f54
commit d91ce887c9

View File

@ -1,15 +1,16 @@
#!/bin/sh
test_description='test describe
test_description='test describe'
# o---o-----o----o----o-------o----x
# \ D,R e /
# \---o-------------o-'
# \ B /
# `-o----o----o-'
# A c
#
# First parent of a merge commit is on the same line, second parent below.
B
.--------------o----o----o----x
/ / /
o----o----o----o----o----. /
\ A c /
.------------o---o---o
D,R e
'
. ./test-lib.sh
check_describe () {