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refs: split log_ref_write logic into log_ref_setup

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Separation of the logic for testing and preparing the reflogs from
function log_ref_write to a new non static new function: log_ref_setup.

This allows to be performed from outside the first all reasonable checks
and procedures for writing reflogs.

Signed-off-by: Erick Mattos <erick.mattos@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Erick Mattos 2010-05-21 21:28:36 -03:00 committed by Junio C Hamano
parent feb98d1342
commit 859c30175f
2 changed files with 52 additions and 34 deletions
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83
refs.c
View File

@ -1258,52 +1258,67 @@ static int copy_msg(char *buf, const char *msg)
return cp - buf;
}
int log_ref_setup(const char *ref_name, char **log_file)
{
int logfd, oflags = O_APPEND | O_WRONLY;
char logfile[PATH_MAX];
git_snpath(logfile, sizeof(logfile), "logs/%s", ref_name);
*log_file = logfile;
if (log_all_ref_updates &&
(!prefixcmp(ref_name, "refs/heads/") ||
!prefixcmp(ref_name, "refs/remotes/") ||
!prefixcmp(ref_name, "refs/notes/") ||
!strcmp(ref_name, "HEAD"))) {
if (safe_create_leading_directories(*log_file) < 0)
return error("unable to create directory for %s",
*log_file);
oflags |= O_CREAT;
}
logfd = open(*log_file, oflags, 0666);
if (logfd < 0) {
if (!(oflags & O_CREAT) && errno == ENOENT)
return 0;
if ((oflags & O_CREAT) && errno == EISDIR) {
if (remove_empty_directories(*log_file)) {
return error("There are still logs under '%s'",
*log_file);
}
logfd = open(*log_file, oflags, 0666);
}
if (logfd < 0)
return error("Unable to append to %s: %s",
*log_file, strerror(errno));
}
adjust_shared_perm(*log_file);
close(logfd);
return 0;
}
static int log_ref_write(const char *ref_name, const unsigned char *old_sha1,
const unsigned char *new_sha1, const char *msg)
{
int logfd, written, oflags = O_APPEND | O_WRONLY;
int logfd, result, written, oflags = O_APPEND | O_WRONLY;
unsigned maxlen, len;
int msglen;
char log_file[PATH_MAX];
char *log_file;
char *logrec;
const char *committer;
if (log_all_ref_updates < 0)
log_all_ref_updates = !is_bare_repository();
git_snpath(log_file, sizeof(log_file), "logs/%s", ref_name);
if (log_all_ref_updates &&
(!prefixcmp(ref_name, "refs/heads/") ||
!prefixcmp(ref_name, "refs/remotes/") ||
!prefixcmp(ref_name, "refs/notes/") ||
!strcmp(ref_name, "HEAD"))) {
if (safe_create_leading_directories(log_file) < 0)
return error("unable to create directory for %s",
log_file);
oflags |= O_CREAT;
}
logfd = open(log_file, oflags, 0666);
if (logfd < 0) {
if (!(oflags & O_CREAT) && errno == ENOENT)
return 0;
if ((oflags & O_CREAT) && errno == EISDIR) {
if (remove_empty_directories(log_file)) {
return error("There are still logs under '%s'",
log_file);
}
logfd = open(log_file, oflags, 0666);
}
if (logfd < 0)
return error("Unable to append to %s: %s",
log_file, strerror(errno));
}
adjust_shared_perm(log_file);
result = log_ref_setup(ref_name, &log_file);
if (result)
return result;
logfd = open(log_file, oflags);
if (logfd < 0)
return 0;
msglen = msg ? strlen(msg) : 0;
committer = git_committer_info(0);
maxlen = strlen(committer) + msglen + 100;

3
refs.h
View File

@ -68,6 +68,9 @@ extern void unlock_ref(struct ref_lock *lock);
/** Writes sha1 into the ref specified by the lock. **/
extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
/** Setup reflog before using. **/
int log_ref_setup(const char *ref_name, char **log_file);
/** Reads log for the value of ref during at_time. **/
extern int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *sha1, char **msg, unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt);