# HG changeset patch
# User Durham Goode <durham@fb.com>
# Date 1434056176 25200
# Node ID 6aa31a3b0506247e054b99c3a92ff6e15bb3bad8
# Parent  efcefc3522bd92e14362ad661f49cc3037919269
gitimport: add save frequency config

If the importer encountered an error half way through a large import, all the
commits are saved, but the mapfile is not written, so the process starts over
from the beginning when run again.

This adds the option for a config value that will save the map file every X
commits. I thought about just hard coding this to 100 or something, but doing it
this way seems a little less invasive.

diff --git a/hggit/git_handler.py b/hggit/git_handler.py
--- a/hggit/git_handler.py
+++ b/hggit/git_handler.py
@@ -703,10 +703,14 @@
         else:
             self.ui.status(_("no changes found\n"))
 
+        mapsavefreq = self.ui.configint('hggit', 'mapsavefrequency', 0)
         for i, csha in enumerate(commits):
             self.ui.progress('importing', i, total=total, unit='commits')
             commit = commit_cache[csha]
             self.import_git_commit(commit)
+            if mapsavefreq and i % mapsavefreq == 0:
+                self.ui.debug(_("saving mapfile\n"))
+                self.save_map(self.map_file)
         self.ui.progress('importing', None, total=total, unit='commits')
 
         # TODO if the tags cache is used, remove any dangling tag references
diff --git a/tests/test-clone.t b/tests/test-clone.t
--- a/tests/test-clone.t
+++ b/tests/test-clone.t
@@ -54,6 +54,12 @@
      summary:     add alpha
   
 
+clone with mapsavefreq set
+  $ rm -rf hgrepo-b
+  $ hg clone -r beta gitrepo hgrepo-b --config hggit.mapsavefrequency=1 --debug | grep saving
+  saving mapfile
+  saving mapfile
+
 clone empty repo
   $ git init empty
   Initialized empty Git repository in $TESTTMP/empty/.git/