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Merge branch 'en/rev-parse-invalid-range'

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"git rev-parse Y..." etc. misbehaved when given endpoints were
not committishes.

* en/rev-parse-invalid-range:
  rev-parse: check lookup'ed commit references for NULL
This commit is contained in:
Junio C Hamano
2018-06-01 15:06:39 +09:00
parent caf0c98c63 0ed556d38f
commit 7cb4a974d3
2 changed files with 14 additions and 2 deletions
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8
builtin/rev-parse.c
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@ -282,6 +282,10 @@ static int try_difference(const char *arg)
struct commit *a, *b;
a = lookup_commit_reference(&start_oid);
b = lookup_commit_reference(&end_oid);
if (!a || !b) {
*dotdot = '.';
return 0;
}
exclude = get_merge_bases(a, b);
while (exclude) {
struct commit *commit = pop_commit(&exclude);
@ -328,12 +332,12 @@ static int try_parent_shorthands(const char *arg)
return 0;
*dotdot = 0;
if (get_oid_committish(arg, &oid)) {
if (get_oid_committish(arg, &oid) ||
!(commit = lookup_commit_reference(&oid))) {
*dotdot = '^';
return 0;
}
commit = lookup_commit_reference(&oid);
if (exclude_parent &&
exclude_parent > commit_list_count(commit->parents)) {
*dotdot = '^';