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MySQL backend fixes for Python 3.
With Python 2, text sent to and from MySQL is treated as bytes in
Python. The database may be recorded by MySQL as having some other
encoding (latin1 being the default in some MySQL versions - Roundup
does not set an encoding explicitly, unlike in back_postgresql), but
as long as MySQL's notion of the connection encoding agrees with its
notion of the database encoding, no conversions actually take place
and the bytes are stored and returned as-is.
With Python 3, text sent to and from MySQL is treated as Python
Unicode strings. When the database and connection encoding is latin1,
that means the bytes stored in the database under Python 2 are
interpreted as latin1 and converted from that to Unicode, producing
incorrect results for any non-ASCII characters; furthermore, if trying
to store new non-ASCII data in the database under Python 3, any
non-latin1 characters produce errors.
This patch arranges for both the connection and database character
sets to be UTF-8 when using Python 3, and documents a need to export
and import the database when moving from Python 2 to Python 3 with
this backend.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Sun, 16 Sep 2018 16:19:20 +0000 |
| parents | c75defc1c2f0 |
| children | 9c3ec0a5c7fc |
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#! /usr/bin/env python ''' Usage: %s <tracker home> <priority> <issue title> Create a new issue in the given tracker. Input is taken from STDIN to create the initial issue message (which may be empty). Issues will be created as the current user (%s) if they exist as a Roundup user, or "admin" otherwise. ''' from __future__ import print_function import sys, os, pwd from roundup import instance, mailgw, date # open the instance username = pwd.getpwuid(os.getuid())[0] if len(sys.argv) < 3: print("Error: Not enough arguments") print(__doc__.strip()%(sys.argv[0], username)) sys.exit(1) tracker_home = sys.argv[1] issue_priority = sys.argv[2] issue_title = ' '.join(sys.argv[3:]) # get the message, if any message_text = sys.stdin.read().strip() # open the tracker tracker = instance.open(tracker_home) db = tracker.open('admin') db.tx_Source = "cli" uid = db.user.lookup('admin') try: # try to open the tracker as the current user uid = db.user.lookup(username) db.close() db = tracker.open(username) except KeyError: pass try: # handle the message messages = [] if message_text: summary, x = mailgw.parseContent(message_text, 0, 0) msg = db.msg.create(content=message_text, summary=summary, author=uid, date=date.Date()) messages = [msg] # now create the issue db.issue.create(title=issue_title, priority=issue_priority, messages=messages) db.commit() finally: db.close() # vim: set filetype=python ts=4 sw=4 et si
