make --style=compact look for map-cmdline.compact. change name of key in map file from changelog to changeset. rename command map files to start with map-cmdline. rename ui.logmap to ui.style in hgrc. now --style=foo does this: tries to open foo as file. tries as map-cmdline.foo in template path. tries as foo in template path.

#!/bin/sh

mkdir a
cd a
hg init
echo foo > t1
hg add t1
hg commit -m "1" -d "0 0"

cd ..
hg clone a b

cd a
echo foo > t2
hg add t2
hg commit -m "2" -d "0 0"

cd ../b
echo foo > t3
hg add t3
hg commit -m "3" -d "0 0"

hg push ../a
hg pull ../a
hg push ../a
hg up -m
hg commit -m "4" -d "0 0"
hg push ../a