Useful Patches and Utilities for Bugzilla Are you looking for a way to put your Bugzilla into overdrive? Catch some of the niftiest tricks here in this section.
Apache <filename>mod_rewrite</filename> magic Apache's mod_rewrite module lets you do some truly amazing things with URL rewriting. Here are a couple of examples of what you can do. Make it so if someone types http://www.foo.com/12345, Bugzilla spits back http://www.foo.com/show_bug.cgi?id=12345. Try setting up your VirtualHost section for Bugzilla with a rule like this: RewriteEngine On RewriteRule ^/([0-9]+)$ http://foo.bar.com/show_bug.cgi?id=$1 [L,R] ]]> There are many, many more things you can do with mod_rewrite. As time goes on, I will include many more in the Guide. For now, though, please refer to the mod_rewrite documentation at http://www.apache.org
The setperl.csh Utility You can use the "setperl.csh" utility to quickly and easily change the path to perl on all your Bugzilla files. This is a C-shell script; if you do not have "csh" or "tcsh" in the search path on your system, it will not work! Download the "setperl.csh" utility to your Bugzilla directory and make it executable. bash# cd /your/path/to/bugzilla bash# wget -O setperl.csh 'http://bugzilla.mozilla.org/showattachment.cgi?attach_id=10795' bash# chmod u+x setperl.csh Prepare (and fix) Bugzilla file permissions. bash# chmod u+w * bash# chmod u+x duplicates.cgi bash# chmod a-x bug_status.html Run the script: bash# ./setperl.csh /your/path/to/perl Using Setperl to set your perl path bash# ./setperl.csh /usr/bin/perl
Command-line Bugzilla Queries Users can query Bugzilla from the command line using this suite of utilities. The query.conf file contains the mapping from options to field names and comparison types. Quoted option names are "grepped" for, so it should be easy to edit this file. Comments (#) have no effect; you must make sure these lines do not contain any quoted "option" buglist is a shell script which submits a Bugzilla query and writes the resulting HTML page to stdout. It supports both short options, (such as "-Afoo" or "-Rbar") and long options (such as "--assignedto=foo" or "--reporter=bar"). If the first character of an option is not "-", it is treated as if it were prefixed with "--default=". The columlist is taken from the COLUMNLIST environment variable. This is equivalent to the "Change Columns" option when you list bugs in buglist.cgi. If you have already used Bugzilla, use grep COLUMLIST ~/.netscape/cookies to see your current COLUMNLIST setting. bugs is a simple shell script which calls buglist and extracts the bug numbers from the output. Adding the prefix "http://bugzilla.mozilla.org/buglist.cgi?bug_id=" turns the bug list into a working link if any bugs are found. Counting bugs is easy. Pipe the results through sed -e 's/,/ /g' | wc | awk '{printf $2 "\n"}' Akkana says she has good results piping buglist output through w3m -T text/html -dump Download three files: bash$ wget -O query.conf 'http://bugzilla.mozilla.org/showattachment.cgi?attach_id=26157' bash$ wget -O buglist 'http://bugzilla.mozilla.org/showattachment.cgi?attach_id=26944' bash# wget -O bugs 'http://bugzilla.mozilla.org/showattachment.cgi?attach_id=26215' Make your utilities executable: bash$ chmod u+x buglist bugs
The Quicksearch Utility Quicksearch is a new, experimental feature of the 2.12 release. It consist of two Javascript files, "quicksearch.js" and "localconfig.js", and two documentation files, "quicksearch.html" and "quicksearchhack.html" The index.html page has been updated to include the QuickSearch text box. To take full advantage of the query power, the Bugzilla maintainer must edit "localconfig.js" according to the value sets used in the local installation. Currently, keywords must be hard-coded in localconfig.js. If they are not, keywords are not automatically recognized. This means, if localconfig.js is left unconfigured, that searching for a bug with the "foo" keyword will only find bugs with "foo" in the summary, status whiteboard, product or component name, but not those with the keyword "foo". Workarounds for Bugzilla users: search for '!foo' (this will find only bugs with the keyword "foo" search 'foo,!foo' (equivalent to 'foo OR keyword:foo') When this tool is ported from client-side JavaScript to server-side Perl, the requirement for hard-coding keywords can be fixed. This bug has details.
Hacking Bugzilla The following is a guide for reviewers when checking code into Bugzilla's CVS repostory at mozilla.org. If you wish to submit patches to Bugzilla, you should follow the rules and style conventions below. Any code that does not adhere to these basic rules will not be added to Bugzilla's codebase.
Things that have caused problems and should be avoided Usage of variables in Regular Expressions It is very important that you don't use a variable in a regular expression unless that variable is supposed to contain an expression. This especially applies when using grep. You should use: grep ($_ eq $value, @array); -- NOT THIS -- grep (/$value/, @array); If you need to use a non-expression variable inside of an expression, be sure to quote it properly (using \Q..\E).
Coding Style for Bugzilla While it's true that not all of the code currently in Bugzilla adheres to this (or any) styleguide, it is something that is being worked toward. Therefore, we ask that all new code (submitted patches and new files) follow this guide as closely as possible (if you're only changing 1 or 2 lines, you don't have to reformat the entire file :). The Bugzilla development team has decided to adopt the perl style guide as published by Larry Wall. This giude can be found in Programming Perl (the camel book) or by typing man perlstyle at your favorite shell prompt. What appears below if a brief summary, please refer to the perl style guide if you don't see your question covered here. It is much better to submit a patch which fails these criteria than no patch at all, but please try to meet these minimum standards when submitting code to Bugzilla. Whitespace Bugzilla's prefered indentation is 4 spaces (no tabs, please). Curly braces. The opening brace of a block should be on the same line as the statement that is causing the block and the closing brace should be at the same indentation level as that statement, for example: if ($var) { print "The variable is true"; } else { print "Try again"; } -- NOT THIS -- if ($var) { print "The variable is true"; } else { print "Try again"; } Cookies Bugzilla uses cookies to ease the user experience, but no new patches should require user-side cookies. File Names File names for bugzilla code and support documention should be legal across multiple platforms. \ / : * ? " < > and | are all illegal characters for filenames on various platforms. Also, file names should not have spaces in them as they can cause confusion in CVS and other mozilla.org utilities. Javascript dependencies While Bugzilla uses Javascript to make the user experience easier, no patch to Bugzilla should require Javascript. Schema Changes If you make schema changes, you should modify sanitycheck.cgi to support the new schema. All referential columns should be checked. Taint Mode All new cgis must run in Taint mode (Perl taint and DBI taint), and existing cgi's which run in taint mode must not have taint mode turned off. Templatization Patches to Bugzilla need to support templates so they do not force user interface choices on Bugzilla administrators. Variable Names If a variable is scoped globally ($::variable) its name should be descriptive of what it contains. Local variables can be named a bit looser, provided the context makes their content obvious. For example, $ret could be used as a staging variable for a routine's return value as the line return $ret; will make it blatantly obvious what the variable holds and most likely be shown on the same screen as my $ret = "";. Cross Database Compatability Bugzilla was originally written to work with MySQL and therefore took advantage of some of its features that aren't contained in other RDBMS software. These should be avoided in all new code. Examples of these features are enums and encrypt(). Cross Platform Compatability While Bugzilla was written to be used on Unix based systems (and Unix/Linux is still the only officially supported platform) there are many who desire/need to run Bugzilla on Microsoft Windows boxes. Whenever possible, we should strive not to make the lives of these people any more complicated and avoid doing things that break Bugzilla's ability to run on multiple operating systems.