Remove obsolete cache/flat_list.py

This module has been obsolete and useless for many years, which is
especially obvious since it was missing INHERITED from its
auxdbkey_order and it did not write any eclass metadata.

diff --git a/pym/portage/cache/flat_list.py b/pym/portage/cache/flat_list.py
deleted file mode 100644 (file)
index c88a004..0000000
--- a/pym/portage/cache/flat_list.py
+++ /dev/null
@@ -1,135 +0,0 @@
-# Copyright 2005-2011 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-from portage.cache import fs_template
-from portage.cache import cache_errors
-from portage import os
-from portage import _encodings
-from portage import _unicode_decode
-from portage import _unicode_encode
-import errno
-import io
-import stat
-import sys
-
-if sys.hexversion >= 0x3000000:
-       long = int
-
-# Coerce to unicode, in order to prevent TypeError when writing
-# raw bytes to TextIOWrapper with python2.
-_setitem_fmt = _unicode_decode("%s\n")
-
-# store the current key order *here*.
-class database(fs_template.FsBased):
-
-       autocommits = True
-
-       # do not screw with this ordering. _eclasses_ needs to be last
-       auxdbkey_order=('DEPEND', 'RDEPEND', 'SLOT', 'SRC_URI',
-               'RESTRICT',  'HOMEPAGE',  'LICENSE', 'DESCRIPTION',
-               'KEYWORDS',  'IUSE', 'REQUIRED_USE',
-               'PDEPEND',   'PROVIDE', 'EAPI', 'PROPERTIES',
-               'DEFINED_PHASES', 'HDEPEND')
-
-       def __init__(self, *args, **config):
-               super(database,self).__init__(*args, **config)
-               self.location = os.path.join(self.location, 
-                       self.label.lstrip(os.path.sep).rstrip(os.path.sep))
-
-               if len(self._known_keys) > len(self.auxdbkey_order) + 2:
-                       raise Exception("less ordered keys then auxdbkeys")
-               if not os.path.exists(self.location):
-                       self._ensure_dirs()
-
-
-       def _getitem(self, cpv):
-               d = {}
-               try:
-                       myf = io.open(_unicode_encode(os.path.join(self.location, cpv),
-                               encoding=_encodings['fs'], errors='strict'),
-                               mode='r', encoding=_encodings['repo.content'],
-                               errors='replace')
-                       for k,v in zip(self.auxdbkey_order, myf):
-                               d[k] = v.rstrip("\n")
-               except (OSError, IOError) as e:
-                       if errno.ENOENT == e.errno:
-                               raise KeyError(cpv)
-                       raise cache_errors.CacheCorruption(cpv, e)
-
-               try:
-                       d["_mtime_"] = os.fstat(myf.fileno())[stat.ST_MTIME]
-               except OSError as e:    
-                       myf.close()
-                       raise cache_errors.CacheCorruption(cpv, e)
-               myf.close()
-               return d
-
-
-       def _setitem(self, cpv, values):
-               s = cpv.rfind("/")
-               fp=os.path.join(self.location,cpv[:s],".update.%i.%s" % (os.getpid(), cpv[s+1:]))
-               try:
-                       myf = io.open(_unicode_encode(fp,
-                               encoding=_encodings['fs'], errors='strict'),
-                               mode='w', encoding=_encodings['repo.content'],
-                               errors='backslashreplace')
-               except (OSError, IOError) as e:
-                       if errno.ENOENT == e.errno:
-                               try:
-                                       self._ensure_dirs(cpv)
-                                       myf = io.open(_unicode_encode(fp,
-                                               encoding=_encodings['fs'], errors='strict'),
-                                               mode='w', encoding=_encodings['repo.content'],
-                                               errors='backslashreplace')
-                               except (OSError, IOError) as e:
-                                       raise cache_errors.CacheCorruption(cpv, e)
-                       else:
-                               raise cache_errors.CacheCorruption(cpv, e)
-               
-
-               for x in self.auxdbkey_order:
-                       myf.write(_setitem_fmt % (values.get(x, ""),))
-
-               myf.close()
-               self._ensure_access(fp, mtime=values["_mtime_"])
-               #update written.  now we move it.
-               new_fp = os.path.join(self.location,cpv)
-               try:
-                       os.rename(fp, new_fp)
-               except (OSError, IOError) as e:
-                       os.remove(fp)
-                       raise cache_errors.CacheCorruption(cpv, e)
-
-
-       def _delitem(self, cpv):
-               try:
-                       os.remove(os.path.join(self.location,cpv))
-               except OSError as e:
-                       if errno.ENOENT == e.errno:
-                               raise KeyError(cpv)
-                       else:
-                               raise cache_errors.CacheCorruption(cpv, e)
-
-
-       def __contains__(self, cpv):
-               return os.path.exists(os.path.join(self.location, cpv))
-
-
-       def __iter__(self):
-               """generator for walking the dir struct"""
-               dirs = [self.location]
-               len_base = len(self.location)
-               while len(dirs):
-                       for l in os.listdir(dirs[0]):
-                               if l.endswith(".cpickle"):
-                                       continue
-                               p = os.path.join(dirs[0],l)
-                               st = os.lstat(p)
-                               if stat.S_ISDIR(st.st_mode):
-                                       dirs.append(p)
-                                       continue
-                               yield p[len_base+1:]
-                       dirs.pop(0)
-
-
-       def commit(self):       pass