patch: take messages out of the function so that extensions can add entries

patch: take messages out of the function so that extensions can add entries

Extensions will want to have interactive thing for more operations or
particulary want to show more verbs. So this patch takes out the message thing
from the function so that extensions can add verbs to this. The curses one is
also not in any function so extensions can add more actions and verbs there.

Differential Revision: https://phab.mercurial-scm.org/D567

--- a/mercurial/patch.py	Wed Aug 02 21:24:29 2017 -0700
+++ b/mercurial/patch.py	Wed Aug 30 18:19:14 2017 +0530
@@ -996,54 +996,55 @@
     def __repr__(self):
         return '<hunk %r@%d>' % (self.filename(), self.fromline)
 
+messages = {
+    'multiple': {
+        'discard': _("discard change %d/%d to '%s'?"),
+        'record': _("record change %d/%d to '%s'?"),
+        'revert': _("revert change %d/%d to '%s'?"),
+    },
+    'single': {
+        'discard': _("discard this change to '%s'?"),
+        'record': _("record this change to '%s'?"),
+        'revert': _("revert this change to '%s'?"),
+    },
+    'help': {
+        'discard': _('[Ynesfdaq?]'
+                     '$$ &Yes, discard this change'
+                     '$$ &No, skip this change'
+                     '$$ &Edit this change manually'
+                     '$$ &Skip remaining changes to this file'
+                     '$$ Discard remaining changes to this &file'
+                     '$$ &Done, skip remaining changes and files'
+                     '$$ Discard &all changes to all remaining files'
+                     '$$ &Quit, discarding no changes'
+                     '$$ &? (display help)'),
+        'record': _('[Ynesfdaq?]'
+                    '$$ &Yes, record this change'
+                    '$$ &No, skip this change'
+                    '$$ &Edit this change manually'
+                    '$$ &Skip remaining changes to this file'
+                    '$$ Record remaining changes to this &file'
+                    '$$ &Done, skip remaining changes and files'
+                    '$$ Record &all changes to all remaining files'
+                    '$$ &Quit, recording no changes'
+                    '$$ &? (display help)'),
+        'revert': _('[Ynesfdaq?]'
+                    '$$ &Yes, revert this change'
+                    '$$ &No, skip this change'
+                    '$$ &Edit this change manually'
+                    '$$ &Skip remaining changes to this file'
+                    '$$ Revert remaining changes to this &file'
+                    '$$ &Done, skip remaining changes and files'
+                    '$$ Revert &all changes to all remaining files'
+                    '$$ &Quit, reverting no changes'
+                    '$$ &? (display help)')
+    }
+}
+
 def filterpatch(ui, headers, operation=None):
     """Interactively filter patch chunks into applied-only chunks"""
     if operation is None:
         operation = 'record'
-    messages = {
-        'multiple': {
-            'discard': _("discard change %d/%d to '%s'?"),
-            'record': _("record change %d/%d to '%s'?"),
-            'revert': _("revert change %d/%d to '%s'?"),
-        }[operation],
-        'single': {
-            'discard': _("discard this change to '%s'?"),
-            'record': _("record this change to '%s'?"),
-            'revert': _("revert this change to '%s'?"),
-        }[operation],
-        'help': {
-            'discard': _('[Ynesfdaq?]'
-                         '$$ &Yes, discard this change'
-                         '$$ &No, skip this change'
-                         '$$ &Edit this change manually'
-                         '$$ &Skip remaining changes to this file'
-                         '$$ Discard remaining changes to this &file'
-                         '$$ &Done, skip remaining changes and files'
-                         '$$ Discard &all changes to all remaining files'
-                         '$$ &Quit, discarding no changes'
-                         '$$ &? (display help)'),
-            'record': _('[Ynesfdaq?]'
-                        '$$ &Yes, record this change'
-                        '$$ &No, skip this change'
-                        '$$ &Edit this change manually'
-                        '$$ &Skip remaining changes to this file'
-                        '$$ Record remaining changes to this &file'
-                        '$$ &Done, skip remaining changes and files'
-                        '$$ Record &all changes to all remaining files'
-                        '$$ &Quit, recording no changes'
-                        '$$ &? (display help)'),
-            'revert': _('[Ynesfdaq?]'
-                        '$$ &Yes, revert this change'
-                        '$$ &No, skip this change'
-                        '$$ &Edit this change manually'
-                        '$$ &Skip remaining changes to this file'
-                        '$$ Revert remaining changes to this &file'
-                        '$$ &Done, skip remaining changes and files'
-                        '$$ Revert &all changes to all remaining files'
-                        '$$ &Quit, reverting no changes'
-                        '$$ &? (display help)')
-        }[operation]
-    }
 
     def prompt(skipfile, skipall, query, chunk):
         """prompt query, and process base inputs
@@ -1061,7 +1062,7 @@
         if skipfile is not None:
             return skipfile, skipfile, skipall, newpatches
         while True:
-            resps = messages['help']
+            resps = messages['help'][operation]
             r = ui.promptchoice("%s %s" % (query, resps))
             ui.write("\n")
             if r == 8: # ?
@@ -1166,10 +1167,11 @@
             if skipfile is None and skipall is None:
                 chunk.pretty(ui)
             if total == 1:
-                msg = messages['single'] % chunk.filename()
+                msg = messages['single'][operation] % chunk.filename()
             else:
                 idx = pos - len(h.hunks) + i
-                msg = messages['multiple'] % (idx, total, chunk.filename())
+                msg = messages['multiple'][operation] % (idx, total,
+                                                         chunk.filename())
             r, skipfile, skipall, newpatches = prompt(skipfile,
                     skipall, msg, chunk)
             if r: