From 67f389b0e130d59d7e125243355f5f58a932a2ec Mon Sep 17 00:00:00 2001 From: Steven Knight Date: Wed, 14 Apr 2010 04:38:34 +0000 Subject: Add a stub compat/_scon_dbm.py module and copy whichdb.whichdb() to dbm.whichdb() if necessary. --- src/engine/MANIFEST.in | 1 + src/engine/SCons/compat/__init__.py | 17 +++++++++++-- src/engine/SCons/compat/_scons_dbm.py | 45 +++++++++++++++++++++++++++++++++++ src/script/sconsign.py | 20 +++++++++------- 4 files changed, 73 insertions(+), 10 deletions(-) create mode 100644 src/engine/SCons/compat/_scons_dbm.py diff --git a/src/engine/MANIFEST.in b/src/engine/MANIFEST.in index 6ed0dd7..e6deb6d 100644 --- a/src/engine/MANIFEST.in +++ b/src/engine/MANIFEST.in @@ -4,6 +4,7 @@ SCons/Builder.py SCons/compat/__init__.py SCons/compat/_scons_builtins.py SCons/compat/_scons_collections.py +SCons/compat/_scons_dbm.py SCons/compat/_scons_hashlib.py SCons/compat/_scons_io.py SCons/compat/_scons_itertools.py diff --git a/src/engine/SCons/compat/__init__.py b/src/engine/SCons/compat/__init__.py index 67d47ee..1792dc4 100644 --- a/src/engine/SCons/compat/__init__.py +++ b/src/engine/SCons/compat/__init__.py @@ -65,13 +65,13 @@ __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__" def import_as(module, name): """ Imports the specified module (from our local directory) as the - specified name. + specified name, returning the loaded module object. """ import imp import os.path dir = os.path.split(__file__)[0] file, filename, suffix_mode_type = imp.find_module(module, [dir]) - imp.load_module(name, file, filename, suffix_mode_type) + return imp.load_module(name, file, filename, suffix_mode_type) try: @@ -139,6 +139,19 @@ else: del _UserString +try: + import dbm +except ImportError: + dbm = import_as('_scons_dbm', 'dbm') +try: + dbm.whichdb +except AttributeError: + # Pre-3.0 Python has no dbm.whichdb function. + import whichdb + dbm.whichdb = whichdb.whichdb + del whichdb + + import fnmatch try: fnmatch.filter diff --git a/src/engine/SCons/compat/_scons_dbm.py b/src/engine/SCons/compat/_scons_dbm.py new file mode 100644 index 0000000..edfe6fd --- /dev/null +++ b/src/engine/SCons/compat/_scons_dbm.py @@ -0,0 +1,45 @@ +# +# __COPYRIGHT__ +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY +# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# + +__doc__ = """ +dbm compatibility module for Python versions that don't have dbm. + +This does not not NOT (repeat, *NOT*) provide complete dbm functionality. +It's just a stub on which to hang just enough pieces of dbm functionality +that the whichdb.whichdb() implementstation in the various 2.X versions of +Python won't blow up even if dbm wasn't compiled in. +""" + +__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__" + +class error(Exception): + pass + +def open(*args, **kw): + raise error() + +# Local Variables: +# tab-width:4 +# indent-tabs-mode:nil +# End: +# vim: set expandtab tabstop=4 shiftwidth=4: diff --git a/src/script/sconsign.py b/src/script/sconsign.py index e119a51..cfba945 100644 --- a/src/script/sconsign.py +++ b/src/script/sconsign.py @@ -172,12 +172,16 @@ sys.path = libs + sys.path # END STANDARD SCons SCRIPT HEADER ############################################################################## -import cPickle +import SCons.compat + +import dbm import imp -import whichdb +import pickle import SCons.SConsign +# Monkey-patch in a whichdb()-like function so any use of dbm.whichdb() +# can detect our internal .dblite format, def my_whichdb(filename): if filename[-7:] == ".dblite": return "SCons.dblite" @@ -189,8 +193,8 @@ def my_whichdb(filename): pass return _orig_whichdb(filename) -_orig_whichdb = whichdb.whichdb -whichdb.whichdb = my_whichdb +_orig_whichdb = dbm.whichdb +dbm.whichdb = my_whichdb def my_import(mname): if '.' in mname: @@ -383,7 +387,7 @@ class Do_SConsignDB: return except KeyboardInterrupt: raise - except cPickle.UnpicklingError: + except pickle.UnpicklingError: sys.stderr.write("sconsign: ignoring invalid `%s' file `%s'\n" % (self.dbm_name, fname)) return except Exception, e: @@ -404,7 +408,7 @@ class Do_SConsignDB: def printentries(self, dir, val): print '=== ' + dir + ':' - printentries(cPickle.loads(val), dir) + printentries(pickle.loads(val), dir) def Do_SConsignDir(name): try: @@ -416,7 +420,7 @@ def Do_SConsignDir(name): sconsign = SCons.SConsign.Dir(fp) except KeyboardInterrupt: raise - except cPickle.UnpicklingError: + except pickle.UnpicklingError: sys.stderr.write("sconsign: ignoring invalid .sconsign file `%s'\n" % (name)) return except Exception, e: @@ -497,7 +501,7 @@ if Do_Call: Do_Call(a) else: for a in args: - dbm_name = whichdb.whichdb(a) + dbm_name = dbm.whichdb(a) if dbm_name: Map_Module = {'SCons.dblite' : 'dblite'} dbm = my_import(dbm_name) -- cgit v0.12