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 t
cd t
hg init
echo 0 > a
echo 0 > b
hg ci -A -m m -d "0 0"
touch nottracked
hg locate a
hg locate NONEXISTENT
hg locate
hg rm a
hg ci -m m -d "0 0"
hg locate a
hg locate NONEXISTENT
hg locate
hg locate -r 0 a
hg locate -r 0 NONEXISTENT
hg locate -r 0