/ 
SVN-Notify-2.58
River stage one • 8 direct dependents • 8 total dependents
/ SVN::Notify::HTML

Name

SVN::Notify::HTML - Subversion activity HTML notification

Synopsis

Use svnnotify in post-commit:

svnnotify --repos-path "$1" --revision "$2" \
  --to developers@example.com --handler HTML [options]

Use the class in a custom script:

use SVN::Notify::HTML;

my $notifier = SVN::Notify::HTML->new(%params);
$notifier->prepare;
$notifier->execute;

Description

This subclass of SVN::Notify sends HTML formatted email messages for Subversion activity, rather than the default plain text.

Prerequisites

In addition to the modules required by SVN::Notify, this class requires:

HTML::Entities

Usage

To use SVN::Notify::HTML, simply follow the instructions in SVN::Notify, but when using svnnotify, specify --handler HTML.

Class Interface

Constructor

new

my $notifier = SVN::Notify::HTML->new(%params);

Constructs and returns a new SVN::Notify object. All parameters supported by SVN::Notity are supported here, but SVN::Notify::HTML supports a few additional parameters:

linkize
svnnotify --linkize

A boolean attribute to specify whether or not to "linkize" the SVN log message--that is, to turn any URLs or email addresses in the log message into links.

css_url
svnnotify --css-url http://example.com/svnnotify.css

URL for a CSS file that will can style the HTML output by SVN::Notify::HTML or its subclasses. Note that the URL will be added to the output via a <link rel="stylesheet"> tag after the CSS generated by SVN::Notify::HTML or its subclasses. What that means is that the CSS file specified by css_url need not completely style the HTML, but simply override the default settings. This approach nicely takes advantage of the "cascading" abilities of CSS.

ticket_regex
svnnotify --ticket-regex '(BUG-(\d+))'

This attribute is inherited from SVN::Notify, but its semantics are slightly different: it should return two matches instead of one: the text to linkify and the ticket ID itself. For example, '(BUG-(\d+))' will match "BUG-1234567", and "BUG-1234567" will be used for the link text, while "1234567" will be used to fill in the ticket_url format string. The first set of parentheses capture the whole string, while the parentheses around \d+ match the number only. Also note that it is wise to use "\b" on either side of the regular expression to insure that you don't get spurious matches. So a better version would be '\b(BUG-(\d+))\b'.

As a fallback, if your regular expression returns only a single match string, it will be used both for the link text and for the the ticket URL generated from ticket_url. For example, '\bBUG-(\d+)\b' would make a link only of the number in 'BUG-1234567', as only the number has been captured by the regular expression. But two matches are of course recommended (and likely to work better, as well).

You can use more complicated regular expressions if commit messages are likely to format ticket numbers in various ways. For example, this regular expression:

\b\[?\s*(Ticket\s*#\s*(\d+))\s*\]?\b'

Will match:

 String Matched           Link Text        Ticket Number
--------------------|--------------------|---------------
 [Ticket#1234]         [Ticket#1234]       1234
 [ Ticket # 1234 ]     [ Ticket # 1234 ]   1234
 Ticket #1234          Ticket #1234        1234
 Ticket # 1234         Ticket  #1234       1234

In any of these cases, you can see that the match is successful, properly creates the link text (simply using the text as typed in by the committer, and correctly extracts the ticket number for use in the URL.

To learn more about the power of Regular expressions, I highly recommend _Mastering Regular Expressions, Second Edition_, by Jeffrey Friedl.

Class Methods

content_type

Returns the content type of the notification message, "text/html". Used to set the Content-Type header for the message.

Instance Interface

Instance Methods

start_body

$notifier->start_body($file_handle);

This method starts the body of the notification message. It outputs the opening <html>, <head>, <style>, and <body> tags. Note that if the language attribute is set to a value, it will be specified in the <html> tag.

If the header attribute is set, start_body() outputs it between <div> tags with the ID "header". Furthermore, if the header happens to start with the character "<", start_body() assumes that it contains valid HTML and therefore will not escape it.

output_css

$notifier->output_css($file_handle);

This method starts outputs the CSS for the HTML message. It is called by start_body(), and which wraps the output of output_css() in the appropriate <style> tags.

output_metadata

$notifier->output_metadata($file_handle);

This method outputs a definition list containting the metadata of the commit, including the revision number, author (user), and date of the revision. If the svnweb_url or viewcvs_url attribute has been set, then the appropriate URL for the revision will be used to turn the revision number into a link.

output_log_message

$notifier->output_log_message($file_handle);

Outputs the commit log message in <pre> tags, and the label "Log Message" in <h3> tags. If the bugzilla_url attribute is set, then any strings like "Bug 2" or "bug # 567" will be turned into links.

output_file_lists

$notifier->output_log_message($file_handle);

Outputs the lists of modified, added, deleted, files, as well as the list of files for which properties were changed as unordered lists. The labels used for each group are pulled in from the file_label_map() class method and output in <h3> tags.

end_body

$notifier->end_body($file_handle);

Closes out the body of the email by outputting the closing </body> and </html> tags. Designed to be called when the body of the message is complete, and before any call to output_attached_diff().

If the footer attribute is set, end_body() outputs it between <div> tags with the ID "footer". Furthermore, if the footer happens to end with the character "<", end_body() assumes that it contains valid HTML and therefore will not escape it.

output_diff

$notifier->output_diff($out_file_handle, $diff_file_handle);

Sends the output of svnlook diff to the specified file handle for inclusion in the notification message. The diff is output between <pre> tags, and Each line of the diff file is escaped by HTML::Entities::encode_entities(). The diff data will be read from $diff_file_handle and printed to $out_file_handle.

Accessors

In addition to those supported by SVN::Notify, SVN::Notify::HTML supports the following accessors:

linkize

my $linkize = $notifier->linkize;
$notifier = $notifier->linkize($linkize);

Gets or sets the value of the linkize attribute.

css_url

my $css_url = $notifier->css_url;
$notifier = $notifier->css_url($css_url);

Gets or sets the value of the css_url attribute.

See Also

SVN::Notify

Author

David Wheeler <david@kineticode.com>

Copyright and License

Copyright (c) 2004-2006 Kineticode, Inc. All Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.