color: pass 'ui' to 'win32print'

Same logic as before,'win32print' relies on some data we will move on the 'ui'
object soon, we update the API beforehand for clarity.

mercurial/color.py

@@ -423,11 +423,11 b" if pycompat.osname == 'nt':"
             ansire = re.compile('\033\[([^m]*)m([^\033]*)(.*)',
                                 re.MULTILINE | re.DOTALL)
 
-    def win32print(writefunc, *msgs, **opts):
+    def win32print(ui, writefunc, *msgs, **opts):
         for text in msgs:
-            _win32print(text, writefunc, **opts)
+            _win32print(ui, text, writefunc, **opts)
 
-    def _win32print(text, writefunc, **opts):
+    def _win32print(ui, text, writefunc, **opts):
         label = opts.get('label', '')
         attr = origattr
 

mercurial/ui.py

@@ -805,7 +805,7 b' class ui(object):'
         elif self._colormode == 'win32':
             # windows color printing is its own can of crab, defer to
             # the color module and that is it.
-            color.win32print(self._write, *args, **opts)
+            color.win32print(self, self._write, *args, **opts)
         else:
             msgs = args
             if self._colormode is not None:
@@ -831,7 +831,7 b' class ui(object):'
         elif self._colormode == 'win32':
             # windows color printing is its own can of crab, defer to
             # the color module and that is it.
-            color.win32print(self._write_err, *args, **opts)
+            color.win32print(self, self._write_err, *args, **opts)
         else:
             msgs = args
             if self._colormode is not None: