[PATCH v3 05/13] ref_transaction_update(): remove "have_old" parameter
From: Michael Haggerty <hidden>
Date: 2016-06-15 23:03:50
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> Reviewed-by: Stefan Beller <redacted> --- branch.c | 5 +++-- builtin/commit.c | 2 +- builtin/fetch.c | 6 ++++-- builtin/receive-pack.c | 2 +- builtin/replace.c | 2 +- builtin/tag.c | 2 +- builtin/update-ref.c | 7 ++++--- fast-import.c | 6 +++--- refs.c | 18 ++++++++---------- refs.h | 6 +++--- sequencer.c | 2 +- walker.c | 2 +- 12 files changed, 31 insertions(+), 29 deletions(-)
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);
--
2.1.4