rev-parse --disambiguate=<prefix>
The new option allows you to feed an ambiguous prefix and enumerate
all the objects that share it as a prefix of their object names.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t1512-rev-parse-disambiguation.sh b/t/t1512-rev-parse-disambiguation.sh
index 6de3cb0..3ed7558 100755
--- a/t/t1512-rev-parse-disambiguation.sh
+++ b/t/t1512-rev-parse-disambiguation.sh
@@ -252,4 +252,13 @@
test_must_fail git log 000000000...
'
+test_expect_success 'rev-parse --disambiguate' '
+ # The test creates 16 objects that share the prefix and two
+ # commits created by commit-tree in earlier tests do not share
+ # the prefix.
+ git rev-parse --disambiguate=000000000 >actual &&
+ test "$(wc -l <actual)" = 16 &&
+ test "$(sed -e "s/^\(.........\).*/\1/" actual | sort -u)" = 000000000
+'
+
test_done
