convert: enable deterministic conversion progress bar for git

hgext/convert/git.py

@@ -263,6 +263,9 b' class convert_git(converter_source):'
                    rev=version)
         return c
 
+    def numcommits(self):
+        return len([None for _ in self.gitopen('git rev-list --all')])
+
     def gettags(self):
         tags = {}
         alltags = {}
@@ -342,4 +345,3 b' class convert_git(converter_source):'
     def checkrevformat(self, revstr, mapname='splicemap'):
         """ git revision string is a 40 byte hex """
         self.checkhexformat(revstr, mapname)
-

tests/test-convert-git.t

@@ -56,12 +56,12 b' Remove the directory, then try to replac'
   >   --config progress.refresh=0 --config progress.width=60 \
   > --datesort git-repo
   \r (no-eol) (esc)
-  scanning [ <=>                                          ] 1\r (no-eol) (esc)
-  scanning [  <=>                                         ] 2\r (no-eol) (esc)
-  scanning [   <=>                                        ] 3\r (no-eol) (esc)
-  scanning [    <=>                                       ] 4\r (no-eol) (esc)
-  scanning [     <=>                                      ] 5\r (no-eol) (esc)
-  scanning [      <=>                                     ] 6\r (no-eol) (esc)
+  scanning [======>                                     ] 1/6\r (no-eol) (esc)
+  scanning [=============>                              ] 2/6\r (no-eol) (esc)
+  scanning [=====================>                      ] 3/6\r (no-eol) (esc)
+  scanning [============================>               ] 4/6\r (no-eol) (esc)
+  scanning [===================================>        ] 5/6\r (no-eol) (esc)
+  scanning [===========================================>] 6/6\r (no-eol) (esc)
                                                               \r (no-eol) (esc)
   \r (no-eol) (esc)
   converting [                                          ] 0/6\r (no-eol) (esc)