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Extend read_ref_at() to be usable from places other than sha1_name.

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You can pass an extra argument to the function to receive the
reflog message information.  Also when the log does not go back
beyond the point the user asked, the cut-off time and count are
given back to the caller for emitting the error messages as
appropriately.

We could later add configuration for get_sha1_basic() to make it
an error instead of it being just a warning.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
2007-01-19 01:19:05 -08:00
parent e86eb6668e
commit 16d7cc90dd
4 changed files with 52 additions and 13 deletions
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16
sha1_name.c
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@ -304,6 +304,9 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
/* Is it asking for N-th entry, or approxidate? */
int nth, i;
unsigned long at_time;
unsigned long co_time;
int co_tz, co_cnt;
for (i = nth = 0; 0 <= nth && i < reflog_len; i++) {
char ch = str[at+2+i];
if ('0' <= ch && ch <= '9')
@ -315,7 +318,18 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
at_time = 0;
else
at_time = approxidate(str + at + 2);
read_ref_at(real_ref, at_time, nth, sha1);
if (read_ref_at(real_ref, at_time, nth, sha1, NULL,
&co_time, &co_tz, &co_cnt)) {
if (at_time)
fprintf(stderr,
"warning: Log for '%.*s' only goes "
"back to %s.\n", len, str,
show_rfc2822_date(co_time, co_tz));
else
fprintf(stderr,
"warning: Log for '%.*s' only has "
"%d entries.\n", len, str, co_cnt);
}
}
free(real_ref);