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Make CSV import/export compatible across Python versions (also RDBMS journals) (issue 2550976, issue 2550975).
The roundup-admin export and import commands are used for migrating
between different database backends. It is desirable that they should
be usable also for migrations between Python 2 and Python 3, and in
some cases (e.g. with the anydbm backend) this may be required.
To be usable for such migrations, the format of the generated CSV
files needs to be stable, meaning the same as currently used with
Python 2. The export process uses repr() to produce the fields in the
CSV files and eval() to convert them back to Python data structures.
repr() of strings with non-ASCII characters produces different results
for Python 2 and Python 3.
This patch adds repr_export and eval_import functions to
roundup/anypy/strings.py which provide the required operations that
are just repr() and eval() in Python 2, but are more complicated in
Python 3 to use data representations compatible with Python 2. These
functions are then used in the required places for export and import.
repr() and eval() are also used in storing the dict of changed values
in the journal for the RDBMS backends. It is similarly desirable that
the database be compatible between Python 2 and Python 3, so that
export and import do not need to be used for a migration between
Python versions for non-anydbm back ends. Thus, this patch changes
rdbms_common.py in the places involved in storing journals in the
database, not just in those involved in import/export.
Given this patch, import/export with non-ASCII characters appear based
on some limited testing to work across Python versions, and an
instance using the sqlite backend appears to be compatible between
Python versions without needing import/export, *if* the sessions/otks
databases (which use anydbm) are deleted when changing Python version.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Sun, 02 Sep 2018 23:48:04 +0000 |
| parents | c54720396f40 |
| children | 247f176f9020 |
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.TH ROUNDUP-SERVER 1 "27 July 2004" .SH NAME roundup-server \- start roundup web server .SH SYNOPSIS \fBroundup-server\fP [\fIoptions\fP] [\fBname=\fP\fItracker home\fP]* .SH OPTIONS .TP \fB-C\fP \fIfile\fP Use options read from the configuration file (see below). .TP \fB-n\fP \fIhostname\fP Sets the host name or IP address to listen on. Default is localhost (127.0.0.1). Use 0.0.0.0 to listen on all interfaces on the system. .TP \fB-p\fP \fIport\fP Sets the port to listen on (default: 8080). .TP \fB-d\fP \fIfile\fP Daemonize, and write the server's PID to the nominated file. .TP \fB-l\fP \fIfile\fP Sets a filename to log to (instead of stdout). This is required if the -d option is used. .TP \fB-i\fP \fIfile\fP Sets a filename to use as a template for generating the tracker index page. The variable "trackers" is available to the template and is a dict of all configured trackers. .TP \fB-s\fP Enables to use of SSL. .TP \fB-e\fP \fIfile\fP Sets a filename containing the PEM file to use for SSL. If left blank, a temporary self-signed certificate will be used. .TP \fB-N\fP Log client machine names instead of IP addresses (much slower). .TP \fB-u\fP \fIUID\fP Runs the Roundup web server as this UID. .TP \fB-g\fP \fIGID\fP Runs the Roundup web server as this GID. .TP \fB-d\fP \fIPIDfile\fP Run the server in the background and write the server's PID to the file indicated by PIDfile. The -l option \fBmust\fP be specified if -d is used. .TP \fB-v\fP Print version and exit. .TP \fB-h\fP Print help and exit. .TP \fBname=\fP\fItracker home\fP Sets the tracker home(s) to use. The \fBname\fP variable is how the tracker is identified in the URL (it's the first part of the URL path). The \fItracker home\fP variable is the directory that was identified when you did "roundup-admin init". You may specify any number of these name=home pairs on the command-line. For convenience, you may edit the TRACKER_HOMES variable in the roundup-server file instead. Make sure the name part doesn't include any url-unsafe characters like spaces, as these confuse the cookie handling in browsers like IE. .SH EXAMPLES .TP .B roundup-server -p 9000 bugs=/var/tracker reqs=/home/roundup/group1 Start the server on port \fB9000\fP serving two trackers; one under \fB/bugs\fP and one under \fB/reqs\fP. .SH CONFIGURATION FILE See the "admin_guide" in the Roundup "doc" directory. .SH AUTHOR This manpage was written by Bastian Kleineidam <calvin@debian.org> for the Debian distribution of roundup. The main author of roundup is Richard Jones <richard@users.sourceforge.net>.