cmdutil: templating keywords latesttag and latesttagdistance
This can be used for referring to revisions in a reasonable
meaningful, stable and monotonically increasing way, suitable for
releases or builds directly from a repository.
The latest tag is found by searching through untagged ancestors and
finding the latest tagged ancestor based on tag date. The distance is
found from the length of the longest path to the tagged revision.
For example:
hg log -l1 --template '{latesttag}+{latesttagdistance}\n'
can return
1.3.1+197
This is mostly work by Gilles Moris <gilles.moris@free.fr>
bdiff: gradually enable the popularity hack
Patch from Jason Orendorff
The lower the threshold, the stronger the popularity hack's
influence. So at 3999 lines, the hack is disabled; and at 4000 lines,
the hack is enabled at maximum strength (t=4).
No source file in mercurial/crew is over 4000 lines. But there are, oh,
a few such files in Mozilla. I can testify that this hack causes hg to
generate some correct but eyebrow-raising patches.
I think the hack should phase in gradually. The threshold should be high
for small files where we don't need it so much. Like this:
t = (bn < 31000) ? 1000000 / bn : bn / 1000;
That would leave the popularity hack disabled for small files, then
gradually phase it in:
bn < 1000 -- t > bn (popularity hack is completely disabled)
bn == 1000 -- t = 1000 (still effectively disabled)
bn == 2000 -- t = 500 (only hits unusual files)
bn == 10000 -- t = 100 (only hits especially common lines)
bn == 31000 -- t = 31 (hack is at maximum power)
bn == 32000 -- t = 32 (hack could backfire, ease off)
convert/hg: handle bogus copy records (
issue1843)