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https://mailman.svn.sourceforge.net/svnroot/mailman/branches/tmp-sqlalchemy-branch
................
r8114 | bwarsaw | 2006-12-06 00:16:54 -0500 (Wed, 06 Dec 2006) | 44 lines
Initial take on using SQLAlchemy to store list data in lieu of Python pickles.
While all the list data (including OldStyleMemberships attributes) are stored
in the database, many attributes are stored as PickleTypes binary data. This
isn't idea but it gets things working until a more sophisticated schema can be
developed.
MailList class is now a new-style class, as is required by SQLAlchemy. This
makes several things, er, interesting. Rip out all the low-level pickle
reading and writing stuff. Hook SA transaction events into Lock() and
Unlock(). Move the hooking of the _memberadaptor into InitTempVars(), which
gets called by the SQLAlchemy hooks (MailList.__init__() never is).
Add an initialize.py module which centralizes all the initialization bits that
command line scripts have to do, including configuration, logging, and atabase
initialization.
This change also converts bin/withlist to mmshell wrapper.
Update to SQLAlchemy 0.3.1.
Revamp paths.py.in considerably. There were several problems with the old
way. We no longer disable default loading of site-packages so we don't need
to add Python's site-packages back to sys.path. Also, because
site.addsitedir() causes things like .pth paths to be /appended/ to sys.path,
they actually won't override any site-installed packages. E.g. if SQLAlchemy
is installed in the system Python, our version will not override. IIUC,
setuptools-based packages can be configured to work properly in the face of
package versions, however not all packages we currently depend on are
setuptools-based. So instead, we steal a bit of stuff from site.py but change
things so the prepend .pth stuff to sys.path.
Update several modules to use True/False and whitespace normalization.
Convert from mm_cfg to config object. Modernize a few coding constructs.
Add a couple of exceptions to handle database problems.
In the export script, include the widget type in the elements. This helped in
my stupid little throw away conversion script, but I think it will be more
generally useful.
Add an interact.py module which refactors interactive interpreter access.
Mostly this is used by withlist -i, but it lets us import Mailman.interact and
drop into a prompt just about anywhere (e.g. debugging).
................
r8115 | bwarsaw | 2006-12-07 09:13:56 -0500 (Thu, 07 Dec 2006) | 22 lines
Start to flesh out more of the SQLAlchemy mechanisms.
Added a MailList.__new__() which hooks instantiation to use a query on
dbcontext to get an existing mailing list. A 'no-args' call means we're doing
a Create(), though eventually that will change too.
For now, disable the CheckVersion() call. Eventually this will be folded into
schema migration.
list_exists(): Rewrite to use the dbcontext query to determine if the named
mailing list exists or not. Requires the fqdn_listname.
Eradicate two failed member adaptors: BDBMemberAdaptor and SAMemberships.
Change the way the DBContext holds onto tables. It now keeps a dictionary
mapping the table's name to the SA Table instance. This makes it easier to
look up and use the individual tables.
Add 'web_page_url' as an attribute managed by SA, and remove a debugging
print.
................
r8116 | bwarsaw | 2006-12-11 07:27:47 -0500 (Mon, 11 Dec 2006) | 29 lines
Rework the whole dbcontext and transaction framework. SA already handles
nested transactions so we don't have to worry about them. However, we do have
the weird situation where some transactions are tied to MailList
.Lock()/.Unlock()/.Save() and some are tied to non-mlist actions. So now we
use an @txn decorator to put methods in a session transaction, but then we
also hook into the above MailList methods as possibly sub-transactions. We
use a weakref subclass to manage the MailList interface, with a dictionary
mapping MailList fqdn_listnames against transactions. The weakrefs come in by
giving us a callback when a MailList gets derefed such that we're guaranteed
to rollback any outstanding transaction.
Also, we have one global DBContext instance but rather than force the rest of
Mailman to deal with context objects, instead we expose API methods on that
object into the Mailman.database module, which the rest of the code will use.
Such methods must be prepended with 'api_' to get exposed this way.
bin/rmlist now works with the SA-backend. I refactored the code here so that
other code (namely, the test suite) can more easily and consistently remove a
mailing list. This isn't the best place for it ultimately, but it's good
enough for now.
New convenience functions Utils.split_listname(), .fqdn_listname().
Convert testall to use Mailman.initialize.initialize(). Not all tests work,
but I'm down to only 8 failures and 7 errors. Also, do a better job of
recovering from failures in setUp().
MailList.__new__() now takes keyword arguments.
................
r8117 | bwarsaw | 2006-12-11 22:58:06 -0500 (Mon, 11 Dec 2006) | 7 lines
Unit test repairs; even though the unit tests are still pretty fragile,
everything now passes with the SQLAlchemy storage of list data.
Added missing 'personalize' column. Converted mailmanctl and qrunner to
initialize() interface. Fixed _cookie_path() to not fail if SCRIPT_NAME is
not in the environment.
................
r8118 | bwarsaw | 2006-12-27 18:45:41 -0500 (Wed, 27 Dec 2006) | 21 lines
Utils.list_names(): Use a database query to get all the list names.
dbcontext.py: Added api_get_list_names() to support Utils.list_names().
listdata.py: Added two additional MailList attributes which need to be stored
in the database. The first is 'admin_member_chunksize' which isn't modifiable
from the web. The second is 'password' which holds the list's password.
HTMLFormatObject: item strings can now be unicodes.
bin/list_lists.py: Must call initialize() to get the database properly
initialized, not just config.load(). This will be a common theme.
SecurityManager.py:
- Remove md5 and crypt support
- Added mailman.debug logger, though it will be only used during
debugging.
- The 'secret' can be a unicode now.
- A few coding style updates; repr() instead of backticks, 'key in dict'
instead of 'dict.has_key(key)'
................
r8119 | bwarsaw | 2006-12-27 19:13:09 -0500 (Wed, 27 Dec 2006) | 2 lines
genaliases.py: config.load() -> initialize()
................
r8120 | bwarsaw | 2006-12-27 19:17:26 -0500 (Wed, 27 Dec 2006) | 9 lines
Blocked revisions 8113 via svnmerge
........
r8113 | bwarsaw | 2006-12-05 23:54:30 -0500 (Tue, 05 Dec 2006) | 3 lines
Initialized merge tracking via "svnmerge" with revisions "1-8112" from
https://mailman.svn.sourceforge.net/svnroot/mailman/branches/tmp-sqlalchemy-branch
........
................
r8121 | bwarsaw | 2006-12-28 23:34:52 -0500 (Thu, 28 Dec 2006) | 20 lines
Remove SIGTERM handling from all the CGI scripts. This messes with HTTPRunner
because when you issue "mailmanctl stop" after the signal handler has been
installed, the process will get a SIGTERM, the signal handler will run, and
the process will exit with a normal zero code. This will cause mailmanctl to
try to restart the HTTPRunner.
I don't think we need that stuff at all when running under wsgi with a
SQLAlchemy backend. If mailmanctl kills the HTTPRunner in the middle of the
process, I believe (but have not tested) that the transaction should get
properly rolled back at process exit. We need to make sure about this, and
also we need to test the signal handling functionality under traditional CGI
environment (if we even still want to support that).
Also, make sure that we don't try to initialize the loggers twice in qrunner.
This was the cause of all the double entries in logs/qrunner.
Fix a coding style nit in mailmanctl.py.
De-DOS-ify line endings in loginit.py.
................
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traces of our crufty old Syslog. Most of this work was purely mechanical,
except for:
1) Initializing the loggers. For this, there's a new module
Mailman/loginit.py (yes all modules from now on will use PEP 8
names). We can't call this 'logging.py' because that will
interfere with importing the stdlib module of the same name (can
you say Python 2.5 and absolute imports?).
If you want to write log messages both to the log file and to
stderr, pass True to loginit.initialize(). This will turn on
propagation of log messages to the parent 'mailman' logger, which
is set up to print to stderr. This is how bin/qrunner works when
not running as a subprocess of mailmanctl.
2) The driver script. I had to untwist the StampedLogger stuff and
implement differently printing exceptions and such to log/error
because standard logging objects don't have a write() method. So
we write to a cStringIO and then pass that to the logger.
3) SMTPDirect.py because of the configurability of the log messages.
This required changing SafeDict into a dict subclass (which is
better than using UserDicts anyway -- yay Python 2.3!). It's
probably still possible to flummox things up if you change the
name of the loggers in the SMTP_LOG_* variables in mm_cfg.py.
However, the worst you can do is cause output to go to stderr and
not go to a log file.
Note too that all entry points into the Mailman system must call
Mailman.loginit.initialize() or the log output will go to stderr
(which may occasionally be what you want). Currently all CGIs and
qrunners should be working properly.
I wish I could have tested all code paths that touch the logger, but
that's infeasible. I have tested this, but it's possible that there
were some mistakes in the translation.
- Mailman.Bouncers.BounceAPI.Stop is a singleton, but not a class
instance any more.
- True/False code cleanup, PEP 8 import restructuring, whitespace
normalization, and copyright year updates, as appropriate.
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