merge: pass wctx to premerge, filemerge
In the in-memory merge branch. we'll need to call a function (``flushall``) on
the wctx inside of _xmerge.
This prepares the way so it can be done without hacks like ``fcd.ctx()``.
Differential Revision: https://phab.mercurial-scm.org/D449
#!/bin/rc
# 9mail - Mercurial email wrapper for upas/marshal
fn usage {
echo >[1=2] usage: mercurial/9mail -f from to [cc]
exit usage
}
from=()
cc=()
to=()
switch($1){
case -f
from=$2
case *
usage
}
to=($3)
if(~ $#* 4)
cc=(-C $4)
upasname=$from
upas/marshal $cc $to