[XXX - this is out of date]
In all places where we write the s.file call sccs_setStime()
In check, check for bad timestamps.
In sccs_setStime() - make sure we have a gtime (just always save this but reset it when when we write a gfile) - get the time to use from the last delta that was "content bearing" Use the unfudged date - 2 sec as the timestamp - Set the time if and only if + time(0) >= timestamp + 2 + mtime(gfile) >= timestamp + 2 + mtime(sfile) != timestamp
In get, if file is locked and timestamps are such that it’s likely make is calling get, then do a warning but not a failure. Call sccs_setStime() to fix the timestamps.
I need to go walk the places we call init w/ INIT_FIXSTIME and see why. It seems fairly random.
INIT_FIXSTIME - now the default, only set by check INIT_FIXDTIME - used by delta, undocumented -G option, could be gflags Gets passed down to sccs_dInit() which means use the gfile mtime as checkin time rather than now. - also looks like it was used in sccs_dInit() to make the checkin time be the file timestamp. GET_DTIME - same as INIT_FIXDTIME (not true)
The rules are: - never touch a gfile timestamp except at checkout & GET_DTIME
Goal: use the gfile mtime such that a clone w/ checkout:edit gets you an identical tree w/ identical mtimes.
For ci, always use the gfile timestamp subject to: if (timestamp ⇐ time(0)) timestamp = time(0); // truncate
For commit, always make sure timestamp = max(now(), greatest(all t of all d)) + 1;
INIT_FIXDTIME is gone, we do that by default now if we have a gfile. INIT_FIXSTIME is used only by check, the behavior is default now.
Goals: - s.file time is always sccs_timestamp(s)→date - 2 where sccs_timestamp() is the first "content bearing" delta in the table (li/ld OR merge OR rename BUT NOT xflag/tag)
never touch gfile timestamps unless we are [re]writing gfile
use the gfile timestamp for checkins if possible (truncate down to now, truncate up to last cset + 1 second)
previous goal means that we need to assert that s.ChangeSet always == time of last cset - 2. So we can get the timestamp w/o initing the file. Either that, or we stuff a TIP_TIMESTAMP file in BitKeeper/log and init the changeset if that is missing or is older than s.ChangeSet.
make commit use now() as it’s timestamp
simplify all the TIME flags INIT_FIXDTIME goes away, it’s now the default unless