From 80a6c2073b4d90be3e1be21f86afe7a47d1ac7bc Mon Sep 17 00:00:00 2001 From: Ben Peart Date: Tue, 10 Jul 2018 21:08:22 +0000 Subject: convert log_ref_write_fd() to use strbuf Since we don't care about how many bytes were written, simplify the return value logic. log_ref_write_fd() was written long before strbuf was fleshed out. Remove the old manual buffer management code and replace it with strbuf(). Also update copy_reflog_msg() which is called only by log_ref_write_fd() to use strbuf as it keeps things consistent. Signed-off-by: Ben Peart Signed-off-by: Junio C Hamano --- refs/files-backend.c | 29 ++++++++++------------------- refs/refs-internal.h | 7 +++---- 2 files changed, 13 insertions(+), 23 deletions(-) (limited to 'refs') diff --git a/refs/files-backend.c b/refs/files-backend.c index a9a066dcfb..054306d779 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -1582,26 +1582,17 @@ static int log_ref_write_fd(int fd, const struct object_id *old_oid, const struct object_id *new_oid, const char *committer, const char *msg) { - int msglen, written; - unsigned maxlen, len; - char *logrec; - - msglen = msg ? strlen(msg) : 0; - maxlen = strlen(committer) + msglen + 100; - logrec = xmalloc(maxlen); - len = xsnprintf(logrec, maxlen, "%s %s %s\n", - oid_to_hex(old_oid), - oid_to_hex(new_oid), - committer); - if (msglen) - len += copy_reflog_msg(logrec + len - 1, msg) - 1; - - written = len <= maxlen ? write_in_full(fd, logrec, len) : -1; - free(logrec); - if (written < 0) - return -1; + struct strbuf sb = STRBUF_INIT; + int ret = 0; - return 0; + strbuf_addf(&sb, "%s %s %s", oid_to_hex(old_oid), oid_to_hex(new_oid), committer); + if (msg && *msg) + copy_reflog_msg(&sb, msg); + strbuf_addch(&sb, '\n'); + if (write_in_full(fd, sb.buf, sb.len) < 0) + ret = -1; + strbuf_release(&sb); + return ret; } static int files_log_ref_write(struct files_ref_store *refs, diff --git a/refs/refs-internal.h b/refs/refs-internal.h index dd834314bd..17a526078f 100644 --- a/refs/refs-internal.h +++ b/refs/refs-internal.h @@ -91,11 +91,10 @@ enum peel_status { enum peel_status peel_object(const struct object_id *name, struct object_id *oid); /* - * Copy the reflog message msg to buf, which has been allocated sufficiently - * large, while cleaning up the whitespaces. Especially, convert LF to space, - * because reflog file is one line per entry. + * Copy the reflog message msg to sb while cleaning up the whitespaces. + * Especially, convert LF to space, because reflog file is one line per entry. */ -int copy_reflog_msg(char *buf, const char *msg); +void copy_reflog_msg(struct strbuf *sb, const char *msg); /** * Information needed for a single ref update. Set new_oid to the new -- cgit v1.2.3