# HG changeset patch
# User Siddharth Agarwal <sid0@fb.com>
# Date 1448065074 28800
# Node ID 09139ccf3085e5a5acf9bb2cd70f66668fe93703
# Parent  6373330155b28512762406b53b0d39fee07a736e
mergestate: add a method to return updated/merged/removed counts

This will not only allow us to remove a bunch of duplicate code in applyupdates
in an upcoming patch, it will also allow the resolve interface to be a lot
simpler: it doesn't need to return the dirstate action to applyupdates.

diff -r 6373330155b2 -r 09139ccf3085 mercurial/merge.py
--- a/mercurial/merge.py	Fri Nov 20 16:32:47 2015 -0800
+++ b/mercurial/merge.py	Fri Nov 20 16:17:54 2015 -0800
@@ -490,6 +490,20 @@
         Returns the exit code of the merge."""
         return self._resolve(False, dfile, wctx, labels=labels)[1]
 
+    def counts(self):
+        """return counts for updated, merged and removed files in this
+        session"""
+        updated, merged, removed = 0, 0, 0
+        for r, action in self._results.itervalues():
+            if r is None:
+                updated += 1
+            elif r == 0:
+                if action == 'r':
+                    removed += 1
+                else:
+                    merged += 1
+        return updated, merged, removed
+
 def _checkunknownfile(repo, wctx, mctx, f, f2=None):
     if f2 is None:
         f2 = f