From 2ff81662c2fb2679f841c09a28bd80c0a63011ac Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Mon, 18 Dec 2006 01:18:16 -0800 Subject: [PATCH] add for_each_reflog_ent() iterator Signed-off-by: Junio C Hamano --- refs.c | 25 +++++++++++++++++++++++++ refs.h | 4 ++++ 2 files changed, 29 insertions(+) diff --git a/refs.c b/refs.c index a101ff3bf..b67b1f011 100644 --- a/refs.c +++ b/refs.c @@ -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 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); +} diff --git a/refs.h b/refs.h index 51aab1e6b..de43cc768 100644 --- a/refs.h +++ b/refs.h @@ -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); -- 2.30.2