color: colorize based on output labels instead of parsing output
By overriding ui.write(), ui.write_err(), ui.popbuffer(), and ui.label(),
the color extension can avoid parsing command output and simply colorize
output based on labels.
As before, the color extension provides a list of default colors for
core commands/labels. Other extensions can provide their own defaults by
specifying a colortable dict (similar to cmdtable).
In this process, --color is promoted to a global option and the deprecated
--no-color option is removed.
#!/bin/sh
mkdir t
cd t
hg init
mkdir a
echo foo > a/a
echo bar > a/b
hg ci -Am "0"
hg co -C 0
hg mv a b
hg ci -m "1 mv a/ b/"
hg co -C 0
echo baz > a/c
echo quux > a/d
hg add a/c
hg ci -m "2 add a/c"
hg merge --debug 1
echo a/* b/*
hg st -C
hg ci -m "3 merge 2+1"
hg debugrename b/c
hg co -C 1
hg merge --debug 2
echo a/* b/*
hg st -C
hg ci -m "4 merge 1+2"
hg debugrename b/c