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author | SZEDER Gábor <szeder.dev@gmail.com> | 2020-06-05 16:00:27 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2020-06-08 22:28:49 +0300 |
commit | 0ee3cb888dc4da900b2e701ef8106205d8963ffb (patch) | |
tree | 743114e1377cea3c3d3f3063debaa838ef942104 /revision.c | |
parent | 1df15f8dee5c637c9013d11d5b8e72e189a04f06 (diff) |
diff.h: drop diff_tree_oid() & friends' return value
ll_diff_tree_oid() has only ever returned 0 [1], so it's return value
is basically useless. It's only caller diff_tree_oid() has only ever
returned the return value of ll_diff_tree_oid() as-is [2], so its
return value is just as useless. Most of diff_tree_oid()'s callers
simply ignore its return value, except:
- diff_root_tree_oid() is a thin wrapper around diff_tree_oid() and
returns with its return value, but all of diff_root_tree_oid()'s
callers ignore its return value.
- rev_compare_tree() and rev_same_tree_as_empty() do look at the
return value in a condition, but, since the return value is always
0, the former's < 0 condition is never fulfilled, while the
latter's >= 0 condition is always fulfilled.
So let's drop the return value of ll_diff_tree_oid(), diff_tree_oid()
and diff_root_tree_oid(), and drop those conditions from
rev_compare_tree() and rev_same_tree_as_empty() as well.
[1] ll_diff_tree_oid() and its ancestors have been returning only 0
ever since it was introduced as diff_tree() in 9174026cfe (Add
"diff-tree" program to show which files have changed between two
trees., 2005-04-09).
[2] diff_tree_oid() traces back to diff-tree.c:main() in 9174026cfe as
well.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'revision.c')
-rw-r--r-- | revision.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/revision.c b/revision.c index cbf4b61aa6..c644c66091 100644 --- a/revision.c +++ b/revision.c @@ -791,9 +791,7 @@ static int rev_compare_tree(struct rev_info *revs, tree_difference = REV_TREE_SAME; revs->pruning.flags.has_changes = 0; - if (diff_tree_oid(&t1->object.oid, &t2->object.oid, "", - &revs->pruning) < 0) - return REV_TREE_DIFFERENT; + diff_tree_oid(&t1->object.oid, &t2->object.oid, "", &revs->pruning); if (!nth_parent) if (bloom_ret == 1 && tree_difference == REV_TREE_SAME) @@ -804,7 +802,6 @@ static int rev_compare_tree(struct rev_info *revs, static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit) { - int retval; struct tree *t1 = get_commit_tree(commit); if (!t1) @@ -812,9 +809,9 @@ static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit) tree_difference = REV_TREE_SAME; revs->pruning.flags.has_changes = 0; - retval = diff_tree_oid(NULL, &t1->object.oid, "", &revs->pruning); + diff_tree_oid(NULL, &t1->object.oid, "", &revs->pruning); - return retval >= 0 && (tree_difference == REV_TREE_SAME); + return tree_difference == REV_TREE_SAME; } struct treesame_state { |