tests/test-rename-merge1.out

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.

checkout
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
created new head
merge
  searching for copies back to rev 1
  unmatched files in local:
   c2
  unmatched files in other:
   b
   b2
  all copies found (* = to merge, ! = divergent):
   c2 -> a2 !
   b -> a *
   b2 -> a2 !
  checking for directory renames
 a2: divergent renames -> dr
resolving manifests
 overwrite None partial False
 ancestor af1939970a1c local 044f8520aeeb+ remote 85c198ef2f6c
 a: remote moved to b -> m
 b2: remote created -> g
preserving a for resolve of b
removing a
update: a 1/3 files (33.33%)
picked tool 'internal:merge' for b (binary False symlink False)
merging a and b to b
my b@044f8520aeeb+ other b@85c198ef2f6c ancestor a@af1939970a1c
 premerge successful
update: a2 2/3 files (66.67%)
warning: detected divergent renames of a2 to:
 c2
 b2
update: b2 3/3 files (100.00%)
getting b2
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
M b
  a
M b2
R a
C c2
blahblah
   rev    offset  length   base linkrev nodeid       p1           p2
     0         0      67      0       1 57eacc201a7f 000000000000 000000000000
     1        67      72      1       3 4727ba907962 000000000000 57eacc201a7f
b renamed from a:dd03b83622e78778b403775d0d074b9ac7387a66