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convert "oidcmp() != 0" to "!oideq()"

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This is the flip side of the previous two patches: checking
for a non-zero oidcmp() can be more strictly expressed as
inequality. Like those patches, we write "!= 0" in the
coccinelle transformation, which covers by isomorphism the
more common:

  if (oidcmp(E1, E2))

As with the previous two patches, this patch can be achieved
almost entirely by running "make coccicheck"; the only
differences are manual line-wrap fixes to match the original
code.

There is one thing to note for anybody replicating this,
though: coccinelle 1.0.4 seems to miss the case in
builtin/tag.c, even though it's basically the same as all
the others. Running with 1.0.7 does catch this, so
presumably it's just a coccinelle bug that was fixed in the
interim.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2018-08-28 17:22:48 -04:00
committed by Junio C Hamano
parent e3ff0683e2
commit 9001dc2a74
31 changed files with 55 additions and 49 deletions
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8
sequencer.c
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@ -1188,7 +1188,7 @@ static int parse_head(struct commit **head)
current_head = lookup_commit_reference(the_repository, &oid);
if (!current_head)
return error(_("could not parse HEAD"));
if (oidcmp(&oid, &current_head->object.oid)) {
if (!oideq(&oid, &current_head->object.oid)) {
warning(_("HEAD %s is not a commit!"),
oid_to_hex(&oid));
}
@ -3034,7 +3034,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
struct commit_list *p = commit->parents->next;
for (j = to_merge; j && p; j = j->next, p = p->next)
if (oidcmp(&j->item->object.oid,
if (!oideq(&j->item->object.oid,
&p->item->object.oid)) {
can_fast_forward = 0;
break;
@ -3566,7 +3566,7 @@ static int commit_staged_changes(struct replay_opts *opts,
if (get_oid_hex(rev.buf, &to_amend))
return error(_("invalid contents: '%s'"),
rebase_path_amend());
if (!is_clean && oidcmp(&head, &to_amend))
if (!is_clean && !oideq(&head, &to_amend))
return error(_("\nYou have uncommitted changes in your "
"working tree. Please, commit them\n"
"first and then run 'git rebase "
@ -4545,7 +4545,7 @@ int skip_unnecessary_picks(void)
if (item->commit->parents->next)
break; /* merge commit */
parent_oid = &item->commit->parents->item->object.oid;
if (oidcmp(parent_oid, oid))
if (!oideq(parent_oid, oid))
break;
oid = &item->commit->object.oid;
}