This function will most often be called by log_ref_write_1(), which
wants to append to the reflog file. In that case, it is silly to close
the file only for the caller to reopen it immediately. So, in the case
that the file was opened, pass the open file descriptor back to the
caller.
Signed-off-by: Michael Haggerty <mhagger@xxxxxxxxxxxx>
---
refs/files-backend.c | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 2cc9489..5937099 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2591,19 +2591,23 @@ static int open_or_create_logfile(const char *path, void *cb)
}
/*
- * Create a reflog for a ref. If force_create = 0, the reflog will
- * only be created for certain refs (those for which
- * should_autocreate_reflog returns non-zero. Otherwise, create it
- * regardless of the ref name. Fill in *err and return -1 on failure.
+ * Create a reflog for a ref. Store its path to *logfile. If
+ * force_create = 0, only create the reflog for certain refs (those
+ * for which should_autocreate_reflog returns non-zero). Otherwise,
+ * create it regardless of the reference name. If the logfile already
+ * existed or was created, return 0 and set *logfd to the file
+ * descriptor opened for appending to the file. If no logfile exists
+ * and we decided not to create one, return 0 and set *logfd to -1. On
+ * failure, fill in *err and return -1.
*/
-static int log_ref_setup(const char *refname, struct strbuf *logfile, struct strbuf *err, int force_create)
+static int log_ref_setup(const char *refname,
+ struct strbuf *logfile, int *logfd,
+ struct strbuf *err, int force_create)
{
- int logfd;
-
strbuf_git_path(logfile, "logs/%s", refname);
if (force_create || should_autocreate_reflog(refname)) {
- if (raceproof_create_file(logfile->buf, open_or_create_logfile, &logfd) < 0) {
+ if (raceproof_create_file(logfile->buf, open_or_create_logfile, logfd) < 0) {
if (errno == ENOENT) {
strbuf_addf(err, "unable to create directory for %s: "
"%s", logfile->buf, strerror(errno));
@@ -2617,11 +2621,10 @@ static int log_ref_setup(const char *refname, struct strbuf *logfile, struct str
return -1;
} else {
adjust_shared_perm(logfile->buf);
- close(logfd);
}
} else {
- logfd = open(logfile->buf, O_APPEND | O_WRONLY, 0666);
- if (logfd < 0) {
+ *logfd = open(logfile->buf, O_APPEND | O_WRONLY, 0666);
+ if (*logfd < 0) {
if (errno == ENOENT || errno == EISDIR) {
/*
* The logfile doesn't already exist,
@@ -2636,7 +2639,6 @@ static int log_ref_setup(const char *refname, struct strbuf *logfile, struct str
}
} else {
adjust_shared_perm(logfile->buf);
- close(logfd);
}
}
@@ -2647,8 +2649,11 @@ int safe_create_reflog(const char *refname, int force_create, struct strbuf *err
{
int ret;
struct strbuf sb = STRBUF_INIT;
+ int fd;
- ret = log_ref_setup(refname, &sb, err, force_create);
+ ret = log_ref_setup(refname, &sb, &fd, err, force_create);
+ if (!ret && fd >= 0)
+ close(fd);
strbuf_release(&sb);
return ret;
}
@@ -2684,17 +2689,17 @@ static int log_ref_write_1(const char *refname, const unsigned char *old_sha1,
struct strbuf *logfile, int flags,
struct strbuf *err)
{
- int logfd, result, oflags = O_APPEND | O_WRONLY;
+ int logfd, result;
if (log_all_ref_updates < 0)
log_all_ref_updates = !is_bare_repository();
- result = log_ref_setup(refname, logfile, err, flags & REF_FORCE_CREATE_REFLOG);
+ result = log_ref_setup(refname, logfile, &logfd, err,
+ flags & REF_FORCE_CREATE_REFLOG);
if (result)
return result;
- logfd = open(logfile->buf, oflags);
if (logfd < 0)
return 0;
result = log_ref_write_fd(logfd, old_sha1, new_sha1,
--
2.7.0
--
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