2106 

  2107 # A list of state files kept by multistep operations like graft.

  2108 # Since graft cannot be aborted, it is considered 'clearable' by update.

  2109 # note: bisect is intentionally excluded

  2110 # (state file, clearable, error, hint)

  2111 unfinishedstates = [

  2112     ('graftstate', True, _('graft in progress'),

  2113      _("use 'hg graft --continue' or 'hg update' to abort"))

  2114     ]

  2115 

  2116 def checkunfinished(repo):

  2117     '''Look for an unfinished multistep operation, like graft, and abort

  2118     if found. It's probably good to check this right before

  2119     bailifchanged().

  2120     '''

  2121     for f, clearable, msg, hint in unfinishedstates:

  2122         if repo.vfs.exists(f):

  2123             raise util.Abort(msg, hint=hint)

  2124 

  2125 def clearunfinished(repo):

  2126     '''Check for unfinished operations (as above), and clear the ones

  2127     that are clearable.

  2128     '''

  2129     for f, clearable, msg, hint in unfinishedstates:

  2130         if not clearable and repo.vfs.exists(f):

  2131             raise util.Abort(msg, hint=hint)

  2132     for f, clearable, msg, hint in unfinishedstates:

  2133         if clearable and repo.vfs.exists(f):

  2134             util.unlink(repo.join(f))