From 1d147bdff0b8132d3aa53a46df8dbab7b673b796 Mon Sep 17 00:00:00 2001 From: Michael Haggerty Date: Tue, 17 Feb 2015 18:00:15 +0100 Subject: ref_transaction_update(): remove "have_old" parameter Instead, verify the reference's old value if and only if old_sha1 is non-NULL. ref_transaction_delete() will get the same treatment in a moment. Signed-off-by: Michael Haggerty Reviewed-by: Stefan Beller Signed-off-by: Junio C Hamano diff --git a/branch.c b/branch.c index 4bab55a..b002435 100644 --- a/branch.c +++ b/branch.c @@ -284,8 +284,9 @@ void create_branch(const char *head, transaction = ref_transaction_begin(&err); if (!transaction || - ref_transaction_update(transaction, ref.buf, sha1, - null_sha1, 0, !forcing, msg, &err) || + ref_transaction_update(transaction, ref.buf, + sha1, forcing ? NULL : null_sha1, + 0, msg, &err) || ref_transaction_commit(transaction, &err)) die("%s", err.buf); ref_transaction_free(transaction); diff --git a/builtin/commit.c b/builtin/commit.c index 7f46713..8afb0ff 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -1767,7 +1767,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) ref_transaction_update(transaction, "HEAD", sha1, current_head ? current_head->object.sha1 : NULL, - 0, !!current_head, sb.buf, &err) || + 0, sb.buf, &err) || ref_transaction_commit(transaction, &err)) { rollback_index_files(); die("%s", err.buf); diff --git a/builtin/fetch.c b/builtin/fetch.c index 7b84d35..719bf4f 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -416,8 +416,10 @@ static int s_update_ref(const char *action, transaction = ref_transaction_begin(&err); if (!transaction || - ref_transaction_update(transaction, ref->name, ref->new_sha1, - ref->old_sha1, 0, check_old, msg, &err)) + ref_transaction_update(transaction, ref->name, + ref->new_sha1, + check_old ? ref->old_sha1 : NULL, + 0, msg, &err)) goto fail; ret = ref_transaction_commit(transaction, &err); diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index e0ce78e..0be50e9 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -971,7 +971,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (ref_transaction_update(transaction, namespaced_name, new_sha1, old_sha1, - 0, 1, "push", + 0, "push", &err)) { rp_error("%s", err.buf); strbuf_release(&err); diff --git a/builtin/replace.c b/builtin/replace.c index 85d39b5..54bf01a 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -172,7 +172,7 @@ static int replace_object_sha1(const char *object_ref, transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, ref, repl, prev, - 0, 1, NULL, &err) || + 0, NULL, &err) || ref_transaction_commit(transaction, &err)) die("%s", err.buf); diff --git a/builtin/tag.c b/builtin/tag.c index 6dc85a9..4194b9a 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -733,7 +733,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix) transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, ref.buf, object, prev, - 0, 1, NULL, &err) || + 0, NULL, &err) || ref_transaction_commit(transaction, &err)) die("%s", err.buf); ref_transaction_free(transaction); diff --git a/builtin/update-ref.c b/builtin/update-ref.c index 9a1659e..1ad6ce1 100644 --- a/builtin/update-ref.c +++ b/builtin/update-ref.c @@ -198,8 +198,9 @@ static const char *parse_cmd_update(struct ref_transaction *transaction, if (*next != line_termination) die("update %s: extra input: %s", refname, next); - if (ref_transaction_update(transaction, refname, new_sha1, old_sha1, - update_flags, have_old, msg, &err)) + if (ref_transaction_update(transaction, refname, + new_sha1, have_old ? old_sha1 : NULL, + update_flags, msg, &err)) die("%s", err.buf); update_flags = 0; @@ -297,7 +298,7 @@ static const char *parse_cmd_verify(struct ref_transaction *transaction, die("verify %s: extra input: %s", refname, next); if (ref_transaction_update(transaction, refname, new_sha1, old_sha1, - update_flags, 1, msg, &err)) + update_flags, msg, &err)) die("%s", err.buf); update_flags = 0; diff --git a/fast-import.c b/fast-import.c index d0bd285..1e72bfb 100644 --- a/fast-import.c +++ b/fast-import.c @@ -1716,7 +1716,7 @@ static int update_branch(struct branch *b) transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, b->name, b->sha1, old_sha1, - 0, 1, msg, &err) || + 0, msg, &err) || ref_transaction_commit(transaction, &err)) { ref_transaction_free(transaction); error("%s", err.buf); @@ -1756,8 +1756,8 @@ static void dump_tags(void) strbuf_reset(&ref_name); strbuf_addf(&ref_name, "refs/tags/%s", t->name); - if (ref_transaction_update(transaction, ref_name.buf, t->sha1, - NULL, 0, 0, msg, &err)) { + if (ref_transaction_update(transaction, ref_name.buf, + t->sha1, NULL, 0, msg, &err)) { failure |= error("%s", err.buf); goto cleanup; } diff --git a/refs.c b/refs.c index e3a2ba8..e88817c 100644 --- a/refs.c +++ b/refs.c @@ -3654,7 +3654,7 @@ int ref_transaction_update(struct ref_transaction *transaction, const char *refname, const unsigned char *new_sha1, const unsigned char *old_sha1, - unsigned int flags, int have_old, const char *msg, + unsigned int flags, const char *msg, struct strbuf *err) { struct ref_update *update; @@ -3664,9 +3664,6 @@ int ref_transaction_update(struct ref_transaction *transaction, if (transaction->state != REF_TRANSACTION_OPEN) die("BUG: update called for transaction that is not open"); - if (have_old && !old_sha1) - die("BUG: have_old is true but old_sha1 is NULL"); - if (!is_null_sha1(new_sha1) && check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { strbuf_addf(err, "refusing to update ref with bad name %s", @@ -3676,7 +3673,7 @@ int ref_transaction_update(struct ref_transaction *transaction, update = add_update(transaction, refname); hashcpy(update->new_sha1, new_sha1); - if (have_old) { + if (old_sha1) { hashcpy(update->old_sha1, old_sha1); flags |= REF_HAVE_OLD; } @@ -3693,7 +3690,7 @@ int ref_transaction_create(struct ref_transaction *transaction, struct strbuf *err) { return ref_transaction_update(transaction, refname, new_sha1, - null_sha1, flags, 1, msg, err); + null_sha1, flags, msg, err); } int ref_transaction_delete(struct ref_transaction *transaction, @@ -3702,8 +3699,9 @@ int ref_transaction_delete(struct ref_transaction *transaction, unsigned int flags, int have_old, const char *msg, struct strbuf *err) { - return ref_transaction_update(transaction, refname, null_sha1, - old_sha1, flags, have_old, msg, err); + return ref_transaction_update(transaction, refname, + null_sha1, have_old ? old_sha1 : NULL, + flags, msg, err); } int update_ref(const char *action, const char *refname, @@ -3715,8 +3713,8 @@ int update_ref(const char *action, const char *refname, t = ref_transaction_begin(&err); if (!t || - ref_transaction_update(t, refname, sha1, oldval, flags, - !!oldval, action, &err) || + ref_transaction_update(t, refname, sha1, oldval, + flags, action, &err) || ref_transaction_commit(t, &err)) { const char *str = "update_ref failed for ref '%s': %s"; diff --git a/refs.h b/refs.h index 92b8597..dced4c9 100644 --- a/refs.h +++ b/refs.h @@ -265,8 +265,8 @@ struct ref_transaction *ref_transaction_begin(struct strbuf *err); /* * Add a reference update to transaction. new_sha1 is the value that * the reference should have after the update, or null_sha1 if it should - * be deleted. If have_old is true, then old_sha1 holds the value - * that the reference should have had before the update, or zeros if + * be deleted. If old_sha1 is non-NULL, then it is the value + * that the reference should have had before the update, or null_sha1 if * it must not have existed beforehand. * Function returns 0 on success and non-zero on failure. A failure to update * means that the transaction as a whole has failed and will need to be @@ -276,7 +276,7 @@ int ref_transaction_update(struct ref_transaction *transaction, const char *refname, const unsigned char *new_sha1, const unsigned char *old_sha1, - unsigned int flags, int have_old, const char *msg, + unsigned int flags, const char *msg, struct strbuf *err); /* diff --git a/sequencer.c b/sequencer.c index 77a1266..32aa05e 100644 --- a/sequencer.c +++ b/sequencer.c @@ -252,7 +252,7 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from, if (!transaction || ref_transaction_update(transaction, "HEAD", to, unborn ? null_sha1 : from, - 0, 1, sb.buf, &err) || + 0, sb.buf, &err) || ref_transaction_commit(transaction, &err)) { ref_transaction_free(transaction); error("%s", err.buf); diff --git a/walker.c b/walker.c index 483da4e..58ffeca 100644 --- a/walker.c +++ b/walker.c @@ -299,7 +299,7 @@ int walker_fetch(struct walker *walker, int targets, char **target, strbuf_reset(&refname); strbuf_addf(&refname, "refs/%s", write_ref[i]); if (ref_transaction_update(transaction, refname.buf, - &sha1[20 * i], NULL, 0, 0, + &sha1[20 * i], NULL, 0, msg ? msg : "fetch (unknown)", &err)) { error("%s", err.buf); -- cgit v0.10.2-6-g49f6