|  |
| |
This class is a container for a list of OldInfo objects. Because of the behavior
of the OldInfo.__cmp__(),
sorting this list puts the entries into reverse
chronological order.
The constructor takes the pathname of the directory
subtree as an argument, builds the list of OldInfo objects, and sorts them. You can
call the .genFiles() method and
it will generate the contained OldInfo objects in reverse chronological
order.
Again, this class is just about identical to the
corresponding class in the bigfiles.py script; see
Section 7.8, “class BigReport:
The class for the whole application”.
# - - - - - c l a s s O l d R e p o r t - - - - -
class OldReport:
"""Holds the old-files report.
Exports:
OldReport ( dir ):
[ dir is a string ->
if dir names a directory to which we have access ->
return an OldReport object describing all the
accessible files in that directory's subtree
else -> raise OSError ]
.genFiles():
[ generate a sequence of OldInfo objects representing
the files in self, in reverse chronological order
by modification timestamp ]
Class invariants:
.__oldList:
[ a list of information on all the files in self
as OldInfo objects, sorted ]
"""