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bisect: consistently write BISECT_EXPECTED_REV via the refdb

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We're inconsistently writing BISECT_EXPECTED_REV both via the filesystem
and via the refdb, which violates the newly established rules for how
special refs must be treated. This works alright in practice with the
reffiles reference backend, but will cause bugs once we gain additional
backends.

Fix this issue and consistently write BISECT_EXPECTED_REV via the refdb
so that it is no longer a special ref.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2023-12-14 14:37:13 +01:00
committed by Junio C Hamano
parent 70c70de616
commit 0a06892ddd
4 changed files with 9 additions and 29 deletions
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8
builtin/bisect.c
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@ -17,7 +17,6 @@
#include "revision.h"
static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK")
static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START")
static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG")
@ -921,7 +920,6 @@ static enum bisect_error bisect_state(struct bisect_terms *terms, int argc,
const char *state;
int i, verify_expected = 1;
struct object_id oid, expected;
struct strbuf buf = STRBUF_INIT;
struct oid_array revs = OID_ARRAY_INIT;
if (!argc)
@ -976,10 +974,8 @@ static enum bisect_error bisect_state(struct bisect_terms *terms, int argc,
oid_array_append(&revs, &commit->object.oid);
}
if (strbuf_read_file(&buf, git_path_bisect_expected_rev(), 0) < the_hash_algo->hexsz ||
get_oid_hex(buf.buf, &expected) < 0)
if (read_ref("BISECT_EXPECTED_REV", &expected))
verify_expected = 0; /* Ignore invalid file contents */
strbuf_release(&buf);
for (i = 0; i < revs.nr; i++) {
if (bisect_write(state, oid_to_hex(&revs.oid[i]), terms, 0)) {
@ -988,7 +984,7 @@ static enum bisect_error bisect_state(struct bisect_terms *terms, int argc,
}
if (verify_expected && !oideq(&revs.oid[i], &expected)) {
unlink_or_warn(git_path_bisect_ancestors_ok());
unlink_or_warn(git_path_bisect_expected_rev());
delete_ref(NULL, "BISECT_EXPECTED_REV", NULL, REF_NO_DEREF);
verify_expected = 0;
}
}