# HG changeset patch
# User Jun Wu <quark@fb.com>
# Date 1462824660 -3600
# Node ID 7e98352a37db9c185bebc28f9ae150e2e8c4ca9a
# Parent  025e849d22f0a52844a9631981b817c0af07a278
maps: add the "batchset" method to RevMap

This is a part of the bigger plan to get rid of reading or writing rev_map
directly without going through the RevMap class.

The "batchset" method is like "__setitem__" but set items in batches. It
will be used in rebuildmeta.

diff --git a/hgsubversion/maps.py b/hgsubversion/maps.py
--- a/hgsubversion/maps.py
+++ b/hgsubversion/maps.py
@@ -360,6 +360,19 @@ class RevMap(dict):
         dict.clear(self)
         self._hashes = None
 
+    def batchset(self, items):
+        '''Set items in batches
+
+        items is an array of (rev num, branch, binary hash)
+
+        For performance reason, meta.lastpulled and meta.firstpulled
+        are not updated.
+        '''
+        f = open(self.meta.revmap_file, 'a')
+        f.write(''.join('%s %s %s\n' % (revnum, hex(binhash), br or '')
+                        for revnum, br, binhash in items))
+        f.close()
+
     @classmethod
     def readmapfile(cls, path, missingok=True):
         try: