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add for_each_reflog_ent() iterator

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Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-12-18 01:18:16 -08:00
parent 5b85143ba5
commit 2ff81662c2
2 changed files with 29 additions and 0 deletions
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25
refs.c
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@ -1091,3 +1091,28 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
logfile, show_rfc2822_date(date, tz));
return 0;
}
void for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data)
{
const char *logfile;
FILE *logfp;
char buf[1024];
logfile = git_path("logs/%s", ref);
logfp = fopen(logfile, "r");
if (!logfp)
return;
while (fgets(buf, sizeof(buf), logfp)) {
unsigned char osha1[20], nsha1[20];
int len;
/* old SP new SP name <email> SP time TAB msg LF */
len = strlen(buf);
if (len < 83 || buf[len-1] != '\n' ||
get_sha1_hex(buf, osha1) || buf[40] != ' ' ||
get_sha1_hex(buf + 41, nsha1) || buf[81] != ' ')
continue; /* corrupt? */
fn(osha1, nsha1, buf+82, cb_data);
}
fclose(logfp);
}

4
refs.h
View file

@ -44,6 +44,10 @@ extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, cons
/** 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);
/* iterate over reflog entries */
typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, char *, void *);
void for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data);
/** Returns 0 if target has the right format for a ref. **/
extern int check_ref_format(const char *target);