issue2551142 - Import of retired node ... unique constraint failure. Title: Import of retired node with username after active node fails with unique constraint failure. More fixes needed for mysql and postgresql. mysql: add unique constraint for (keyvalue, __retired__) when creating class in the database. On schema change if class is changed, remove the unique constraint too. upgrade version of rdbms database from 5 to 6 to add constraint to all version 5 databases that were created as version 5 and didn't get the unique constraint. Make no changes on version 5 databases upgraded from version 4, the upgrade process to 5 added the constraint. Make no changes to other databases (sqlite, postgres) during upgrade from version 5 to 6. postgres: Handle the exception raised on unique constraint violation. The exception invalidates the database connection so it can't be used to recover from the exception. Added two new database methods: checkpoint_data - performs a db.commit under postgres does nothing on other backends restore_connection_on_error - does a db.rollback on postgres, does nothing on other backends with the rollback() done on the connection I can use the database connection to fixup the import that failed on the unique constraint. This makes postgres slower but without the commit after every imported object, the rollback will delete all the entries done up to this point. Trying to figure out how to make the caller do_import batch and recover from this failure is beyond me. Also dismissed having to process the export csv file before importing. Pushing that onto a user just seems wrong. Also since import/export isn't frequently done the lack of surprise on having a failing import and reduced load/frustration for the user seems worth it. Also the import can be run in verbose mode where it prints out a row as it is processed, so it may take a while, ut the user can get feedback. db_test-base.py: add test for upgrade from 5 to 6.

#! /usr/bin/env python
#
# Copyright 2004 Richard Jones (richard@mechanicalcat.net)

"""Extract translatable strings from tracker templates"""

from __future__ import print_function
import os
import sys


# --- patch sys.path to make sure 'import roundup' finds correct version
import os.path as osp

thisdir = osp.dirname(osp.abspath(__file__))
rootdir = osp.dirname(osp.dirname(thisdir))
if (osp.exists(thisdir + '/__init__.py') and
        osp.exists(rootdir + '/roundup/__init__.py')):
    # the script is located inside roundup source code
    sys.path.insert(0, rootdir)
# --/


from roundup.i18n import _
from roundup.cgi.TAL import talgettext

# name of message template file.
# i don't think this will ever need to be changed, but still...
TEMPLATE_FILE = "messages.pot"


def run():
    # return unless command line arguments contain single directory path
    if (len(sys.argv) != 2) or (sys.argv[1] in ("-h", "--help")):
        print(_("Usage: %(program)s <tracker home>") %
              {"program": sys.argv[0]})
        return
    # collect file paths of html templates
    home = os.path.abspath(sys.argv[1])
    htmldir = os.path.join(home, "html")
    if os.path.isdir(htmldir):
        # glob is not used because i want to match file names
        # without case sensitivity, and that is easier done this way.
        htmlfiles = [filename for filename in os.listdir(htmldir)
                     if os.path.isfile(os.path.join(htmldir, filename))
                     and filename.lower().endswith(".html")]
    else:
        htmlfiles = []
    # return if no html files found
    if not htmlfiles:
        print(_("No tracker templates found in directory %s") % home)
        return
    # change to locale dir to have relative source references
    locale = os.path.join(home, "locale")
    if not os.path.isdir(locale):
        os.mkdir(locale)
    os.chdir(locale)
    # tweak sys.argv as this is the only way to tell talgettext what to do
    # Note: unix-style paths used instead of os.path.join deliberately
    sys.argv[1:] = ["-o", TEMPLATE_FILE] \
        + ["../html/" + filename for filename in htmlfiles]
    # run
    talgettext.main()


if __name__ == "__main__":
    run()

# vim: set et sts=4 sw=4 :