convert: rename sink hascommit to hascommitforsplicemap

The name 'hascommit' sounds like something generic ... but it might
also throw exceptions in specific cases and it is thus (apparently)
only useful for splicemap.

hgext/convert/common.py

@@ -260,8 +260,10 b' class converter_sink(object):'
         """
         pass
 
-    def hascommit(self, rev):
-        """Return True if the sink contains rev"""
+    def hascommitforsplicemap(self, rev):
+        """This method is for the special needs for splicemap handling and not
+        for general use. Returns True if the sink contains rev, aborts on some
+        special cases."""
         raise NotImplementedError
 
 class commandline(object):

hgext/convert/convcmd.py

@@ -193,7 +193,7 b' class converter(object):'
         """
         for c in sorted(splicemap):
             if c not in parents:
-                if not self.dest.hascommit(self.map.get(c, c)):
+                if not self.dest.hascommitforsplicemap(self.map.get(c, c)):
                     # Could be in source but not converted during this run
                     self.ui.warn(_('splice map revision %s is not being '
                                    'converted, ignoring\n') % c)
@@ -201,7 +201,7 b' class converter(object):'
             pc = []
             for p in splicemap[c]:
                 # We do not have to wait for nodes already in dest.
-                if self.dest.hascommit(self.map.get(p, p)):
+                if self.dest.hascommitforsplicemap(self.map.get(p, p)):
                     continue
                 # Parent is not in dest and not being converted, not good
                 if p not in parents:

hgext/convert/hg.py

@@ -253,7 +253,7 b' class mercurial_sink(converter_sink):'
             destmarks[bookmark] = bin(updatedbookmark[bookmark])
         destmarks.write()
 
-    def hascommit(self, rev):
+    def hascommitforsplicemap(self, rev):
         if rev not in self.repo and self.clonebranches:
             raise util.Abort(_('revision %s not found in destination '
                                'repository (lookups with clonebranches=true '

hgext/convert/subversion.py

@@ -1300,7 +1300,7 b' class svn_sink(converter_sink, commandli'
         self.ui.warn(_('writing Subversion tags is not yet implemented\n'))
         return None, None
 
-    def hascommit(self, rev):
+    def hascommitforsplicemap(self, rev):
         # This is not correct as one can convert to an existing subversion
         # repository and childmap would not list all revisions. Too bad.
         if rev in self.childmap: