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-rw-r--r--refs.c41
-rw-r--r--refs.h2
-rw-r--r--sha1_name.c16
-rwxr-xr-xt/t1400-update-ref.sh6
4 files changed, 52 insertions, 13 deletions
diff --git a/refs.c b/refs.c
index 6310cf4..60375a7 100644
--- a/refs.c
+++ b/refs.c
@@ -1017,7 +1017,21 @@ int write_ref_sha1(struct ref_lock *lock,
return 0;
}
-int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *sha1)
+static char *ref_msg(const char *line, const char *endp)
+{
+ const char *ep;
+ char *msg;
+
+ line += 82;
+ for (ep = line; ep < endp && *ep != '\n'; ep++)
+ ;
+ msg = xmalloc(ep - line + 1);
+ memcpy(msg, line, ep - line);
+ msg[ep - line] = 0;
+ return msg;
+}
+
+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)
{
const char *logfile, *logdata, *logend, *rec, *lastgt, *lastrec;
char *tz_c;
@@ -1054,6 +1068,14 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
die("Log %s is corrupt.", logfile);
date = strtoul(lastgt + 1, &tz_c, 10);
if (date <= at_time || cnt == 0) {
+ if (msg)
+ *msg = ref_msg(rec, logend);
+ if (cutoff_time)
+ *cutoff_time = date;
+ if (cutoff_tz)
+ *cutoff_tz = tz;
+ if (cutoff_cnt)
+ *cutoff_cnt = reccnt;
if (lastrec) {
if (get_sha1_hex(lastrec, logged_sha1))
die("Log %s is corrupt.", logfile);
@@ -1097,14 +1119,17 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
tz = strtoul(tz_c, NULL, 10);
if (get_sha1_hex(logdata, sha1))
die("Log %s is corrupt.", logfile);
+ if (msg)
+ *msg = ref_msg(logdata, logend);
munmap(log_mapped, st.st_size);
- if (at_time)
- fprintf(stderr, "warning: Log %s only goes back to %s.\n",
- logfile, show_rfc2822_date(date, tz));
- else
- fprintf(stderr, "warning: Log %s only has %d entries.\n",
- logfile, reccnt);
- return 0;
+
+ if (cutoff_time)
+ *cutoff_time = date;
+ if (cutoff_tz)
+ *cutoff_tz = tz;
+ if (cutoff_cnt)
+ *cutoff_cnt = reccnt;
+ return 1;
}
int for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data)
diff --git a/refs.h b/refs.h
index 0e877e8..33450f1 100644
--- a/refs.h
+++ b/refs.h
@@ -42,7 +42,7 @@ extern void unlock_ref(struct ref_lock *lock);
extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
/** 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);
+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);
/* iterate over reflog entries */
typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, const char *, unsigned long, int, const char *, void *);
diff --git a/sha1_name.c b/sha1_name.c
index ae31851..9dfb3ac 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -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);
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index 5637cb5..e48e2b7 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -138,19 +138,19 @@ test_expect_success \
'rm -f o e
git-rev-parse --verify "master@{May 25 2005}" >o 2>e &&
test '"$C"' = $(cat o) &&
- test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
+ test "warning: Log for '\'master\'' only goes back to $ed." = "$(cat e)"'
test_expect_success \
"Query master@{2005-05-25} (before history)" \
'rm -f o e
git-rev-parse --verify master@{2005-05-25} >o 2>e &&
test '"$C"' = $(cat o) &&
- echo test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
+ echo test "warning: Log for '\'master\'' only goes back to $ed." = "$(cat e)"'
test_expect_success \
'Query "master@{May 26 2005 23:31:59}" (1 second before history)' \
'rm -f o e
git-rev-parse --verify "master@{May 26 2005 23:31:59}" >o 2>e &&
test '"$C"' = $(cat o) &&
- test "warning: Log .git/logs/'"$m only goes back to $ed"'." = "$(cat e)"'
+ test "warning: Log for '\''master'\'' only goes back to $ed." = "$(cat e)"'
test_expect_success \
'Query "master@{May 26 2005 23:32:00}" (exactly history start)' \
'rm -f o e