Name

SVN::Notify - Subversion activity notification

Synopsis

Use svnnotify in post-commit:

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

svnnotify --repos-path "$1" --revision "$2" \
  --to-cx-regex i10n@example.com=I10N [options]

Use the class in a custom script:

use SVN::Notify;

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

Description

This class may be used for sending email messages for Subversion repository activity. There are a number of different modes supported, and SVN::Notify is fully subclassable, to add new functionality, and offers comprehensive content filtering to easily modify the format of its messages. By default, A list of all the files affected by the commit will be assembled and listed in a single message. An additional option allows diffs to be calculated for the changes and either appended to the message or added as an attachment. See the with_diff and attach_diff options below.

Usage

To use SVN::Notify, simply add a call to svnnotify to your Subversion repository's post-commit script. This script lives in the hooks directory at the root of the repository directory; consult the documentation in post-commit.tmpl for details. Make sure that you specify the complete path to svnnotify, as well as to svnlook and sendmail in the options passed to svnnotify so that everything executes properly. And if you specify any string options, be sure that they are in the encoding specified by the --encoding option, or UTF-8 if you have not specified --encoding.

Windows Usage

To get SVN::Notify to work properly in a post-commit script, you must set the following environment variables, as they will likely not be present inside Apache:

PATH=C:\perl\bin
OS=Windows_NT
SystemRoot=C:\WINDOWS

See Windows Subversion + Apache + TortoiseSVN + SVN::Notify HOWTO for more detailed information on getting SVN::Notify running on Windows. If you have issues with asynchronous execution, try using HookStart.exe to run svnnotify.

Class Interface

Constructor

new

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

Constructs and returns a new SVN::Notify object. This object is a handle on the whole process of collecting meta data and content for the commit email and then sending it. As such, it takes a number of parameters to affect that process.

Each of these parameters has a corresponding command-line option that can be passed to svnnotify. The options have the same names as these parameters, but any underscores you see here should be replaced with dashes when passed to svnnotify. Most also have a corresponding single-character option. On Perl 5.8 and higher, If you pass parameters to new(), they must be decoded into Perl's internal form if they have any non-ASCII characters.

Supported parameters:

repos_path

svnnotify --repos-path "$PATH"
svnnotify -p "$PATH"

The path to the Subversion repository. The path is passed as the first argument when Subversion executes post-commit. So you can simply pass $1 to this parameter if you like. See the documentation in post-commit for details. Required.

revision

svnnotify --revision "$REV"
svnnotify -r "$REV"

The revision number for the current commit. The revision number is passed as the second argument when Subversion executes post-commit. So you can simply pass $2 to this parameter if you like. See the documentation in post-commit for details. Required.

to

svnnotify --to commiters@example.com
svnnotify -t commiters@example.com --to managers@example.com

The address or addresses to which to send the notification email. Can be used multiple times to specify multiple addresses. This parameter is required unless either to_regex_map or to_email_map is specified.

to_regex_map

svnnotify --to-regex-map translate@example.com=L18N \
          -x legal@example.com=License

This parameter specifies a hash reference of email addresses to regular expression strings. SVN::Notify will compile the regular expression strings into regular expression objects, and then send notification messages if and only if the name of one or more of the directories affected by a commit matches the regular expression. This is a good way to have a notification email sent to a particular mail address (or comma-delimited list of addresses) only for certain parts of the subversion tree. This parameter is required unless to or to_email_map is specified.

The command-line options, --to-regex_map and -x, can be specified any number of times, once for each entry in the hash to be passed to new(). The value passed to the option must be in the form of the key and the value separated by an equal sign. Consult the Getopt::Long documentation for more information.

Here's an example complements of Matt Doar of how to use to_regex_map to do per-branch matching:

author=`svnlook author $REPOS -r $REV`

# The mail regexes should match all the top-level directories
/usr/bin/svnnotify --repos-path "$REPOS" --revision "$REV" \
-x eng-bar@example.com,${EXTRAS}="^Bar" \
-x eng-foo@example.com,${EXTRAS}="^trunk/Foo|^branches/Foo|^tags/Foo" \
-x $author@example.com="^users" --subject-cx

to_email_map

svnnotify --to-email-map L18N=translate@example.com \
          --to-email-map License=legal@example.com

The inverse of to_regex_map: The regular expression is the hash key and the email address or addresses are the value.

from

svnnotify --from somewhere@example.com
svnnotify -f elsewhere@example.com

The email address to use in the "From" line of the email. If not specified, SVN::Notify will use the username from the commit, as returned by svnlook info.

user_domain

svnnotify --user-domain example.com
svnnotify -D example.net

A domain name to append to the username for the "From" header of the email. During a Subversion commit, the username returned by svnlook info is usually something like a Unix login name. SVN::Notify will use this username in the email "From" header unless the from parameter is specified. If you wish to have the username take the form of a real email address, specify a domain name and SVN::Notify will append \@$domain_name to the username in order to create a real email address. This can be useful if all of your committers have an email address that corresponds to their username at the domain specified by the user_domain parameter.

svnlook

svnnotify --svnlook /path/to/svnlook
svnnotify -l /path/to/svnlook

The location of the svnlook executable. If not specified, SVN::Notify will search through the directories in the $PATH environment variable, plus in /usr/local/bin and /usr/sbin, for an svnlook executable. Specify a full path to svnlook via this option or by setting the $SVNLOOK environment variable if svnlook isn't in your path or to avoid loading File::Spec.

It's important to provide a complete path to svnlook because the environment during the execution of post-commit is anemic, with nary a $PATH environment variable to be found. So if svnnotify appears not to be working at all (and Subversion seems loathe to log when it dies!), make sure that you have specified the complete path to a working svnlook executable.

sendmail

svnnotify --sendmail /path/to/sendmail
svnnotify -s /path/to/sendmail

The location of the sendmail executable. If neither the sendmail nor the smtp parameter is specified, SVN::Notify will search through the directories in the $PATH environment variable, plus in /usr/local/bin and /usr/sbin, for an sendmail executable. Specify a full path to sendmail via this option or by setting the $SENDMAIL environment variable if sendmail isn't in your path or to avoid loading File::Spec. The same caveats as applied to the location of the svnlook executable apply here.

set_sender

svnnotify --set-sender
svnnotify -E

Uses the -f option to sendmail to set the envelope sender address of the email to the same address as is used for the "From" header. If you're also using the from option, be sure to make it only an email address. Don't include any other junk in it, like a sender's name. Ignored when using smtp.

smtp

svnnotify --smtp smtp.example.com

The address for an SMTP server through which to send the notification email. If unspecified, SVN::Notify will use sendmail to send the message. If sendmail is not installed locally (such as on Windows boxes!), you must specify an SMTP server.

smtp_user

svnnotify --smtp-user myuser

The user name for SMTP authentication. If this option is specified, SVN::Notify will use Net::SMTP_auth to send the notification message, and will of course authenticate to the SMTP server.

smtp_pass

svnnotify --smtp-pass mypassword

The password for SMTP authentication. Use in parallel with smtp_user.

smtp_authtype

svnnotify --smtp-authtype authtype

The authentication method to use for authenticating to the SMTP server. The available authentication types include "PLAIN", "NTLM", "CRAM_MD5", and others. Consult the Authen::SASL documentation for a complete list. Defaults to "PLAIN".

encoding

svnnotify --encoding UTF-8
svnnotify -c Big5

The character set typically used on the repository for log messages, file names, and file contents. Used to specify the character set in the email Content-Type headers and, when the language parameter is specified, the $LANG environment variable when launching sendmail. See "Character Encoding Support" for more information. Defaults to "UTF-8".

charset

svnnotify --charset UTF-8

Deprecated. Use encoding instead.

svn_encoding

svnnotify --svn-encoding euc-jp

The character set used in files and log messages managed in Subversion. It's useful to set this option if you store files in Subversion using one character set but want to send notification messages in a different character set. Therefore encoding would be used for the notification message, and svn_encoding would be used to read in data from Subversion. See "Character Encoding Support" for more information. Defaults to the value stored in encoding.

diff_encoding

svnnotify --diff-encoding iso-2022-jp

The character set used by files in Subversion, and thus present in the the diff. It's useful to set this option if you store files in Subversion using one character write log messages in a different character set. Therefore svn_encoding would be used to read the log message and diff_encoding would be used to read the diff from Subversion. See "Character Encoding Support" for more information. Defaults to the value stored in svn_encoding.

language

svnnotify --language fr
svnnotify -g i-klingon

The language typically used on the repository for log messages, file names, and file contents. Used to specify the email Content-Language header and to set the $LANG environment variable to $notify->language . '.' . $notify->encoding before executing svnlook and sendmail (but not for sending data to Net::SMTP). Undefined by default, meaning that no Content-Language header is output and the $LANG environment variable will not be set. See "Character Encoding Support" for more information.

with_diff

svnnotify --with-diff
svnnotify -d

A boolean value specifying whether or not to include the output of svnlook diff in the notification email. The diff will be inline at the end of the email unless the attach_diff parameter specifies a true value.

attach_diff

svnnotify --attach-diff
svnnotify -a

A boolean value specifying whether or not to attach the output of svnlook diff to the notification email. Rather than being inline in the body of the email, this parameter causes SVN::Notify to attach the diff as a separate file, named for the user who triggered the commit and the date and time UTC at which the commit took place. Specifying this parameter to a true value implicitly sets the with_diff parameter to a true value.

diff_switches

svnnotify --diff-switches '--no-diff-added'
svnnotify -w '--no-diff-deleted'

Switches to pass to svnlook diff, such as --no-diff-deleted and --no-diff-added. And who knows, maybe someday it will support the same options as svn diff, such as --diff-cmd and --extensions. Only relevant when used with with_diff or attach_diff.

reply_to

svnnotify --reply-to devlist@example.com
svnnotify -R developers@example.net

The email address to use in the "Reply-To" header of the notification email. No "Reply-To" header will be added to the email if no value is specified for the reply_to parameter.

add_headers

svnnotify --add-header X-Approve=letMeIn

Add a header to the notification email message. The header name and its value must be separated by an equals sign. Specify the option multiple times in order to add multiple headers. Headers with the same names are allowed. Not to be confused with the --header option, which adds introductory text to the beginning of the email body.

subject_prefix

svnnotify --subject-prefix [Devlist]
svnnotify -P [%d (Our-Developers)]

An optional string to prepend to the beginning of the subject line of the notification email. If it contains '%d', it will be used to place the revision number; otherwise it will simply be prepended to the subject, which will contain the revision number in brackets.

subject_cx

svnnotify --subject-cx
svnnotify -C

A boolean value indicating whether or not to include a the context of the commit in the subject line of the email. In a commit that affects multiple files, the context will be the name of the shortest directory affected by the commit. This should indicate up to how high up the Subversion repository tree the commit had an effect. If the commit affects a single file, then the context will simply be the name of that file.

strip_cx_regex

svnnotify --strip-cx-regex '^trunk/'
svnnotify --strip-cx-regex '^trunk/' --strip-cx-regex '^branches/'
svnnotify -X '^trunk'
svnnotify -X '^trunk' -X '^branches'

One or more regular expressions to be used to strip out parts of the subject context. This can be useful for very deep Subversion trees, where the commits you're sending will always be sent from a particular subtree, so you'd like to remove part of the tree. Used only if subject_cx is set to a true value. Pass an array reference if calling new() directly.

no_first_line

svnnotify --no-first-line
svnnotify -O

Omits the first line of the log message from the subject. This is most useful when used in combination with the subject_cx parameter, so that just the commit context is displayed in the subject and no part of the log message.

header

svnnotify --header 'SVN::Notify is brought to you by Kineticode.

Adds a specified text to each message as a header at the beginning of the body of the message. Not to be confused with the --add-header option, which adds a header to the headers section of the email.

footer

svnnotify --footer 'Copyright (R) by Kineticode, Inc.'

Adds a specified text to each message as a footer at the end of the body of the message.

max_sub_length

svnnotify --max-sub-length 72
svnnotify -i 76

The maximum length of the notification email subject line. SVN::Notify includes the first line of the commit log message, or the first sentence of the message (defined as any text up to the string ". "), whichever is shorter. This could potentially be quite long. To prevent the subject from being over a certain number of characters, specify a maximum length here, and SVN::Notify will truncate the subject to the last word under that length.

max_diff_length

svnnotify --max-diff-length 1024

The maximum length of the diff (attached or in the body). The diff output is truncated at the last line under the maximum character count specified and then outputs an additional line indicating that the maximum diff size was reached and output truncated. This is helpful when a large diff output could cause a message to bounce due to message size.

handler

svnnotify --handler HTML
svnnotify -H HTML

Specify the subclass of SVN::Notify to be constructed and returned, and therefore to handle the notification. Of course you can just use a subclass directly, but this parameter is designed to make it easy to just use SVN::Notify->new without worrying about loading subclasses, such as in svnnotify. Be sure to read the documentation for your subclass of choice, as there may be additional parameters and existing parameters may behave differently.

filters

svnnotify --filter Trac -F My::Filter

SVN::Notify->new( %params, filters => ['Markdown', 'My::Filter'] );

Specify a more module to be loaded in the expectation that it defines output filters. For example, SVN::Notify::Filter::Trac loads a filter that converts log messages from Trac's markup format to HTML. SVN::Notify::Filter::Markdown, available on CPAN, does the same for Markdown format. Check CPAN for other SVN::Notify filter modules.

This command-line option can be specified more than once to load multiple filters. The filters parameter to new() should be an array reference of modules names. If a value contains "::", it is assumed to be a complete module name. Otherwise, it is assumed to be in the SVN::Notify::Filter name space. See SVN::Notify::Filter for details on writing your own output filters (it's really easy, I promise!).

author_url

svnnotify --author-url 'http://svn.example.com/changelog/~author=%s/repos'
svnnotify --A 'mailto:%s@example.com'

If a URL is specified for this parameter, then it will be used to create a link for the current author. The URL can have the "%s" format where the author's username should be put into the URL.

revision_url

svnnotify --revision-url 'http://svn.example.com/changelog/?cs=%s'
svnnotify -U 'http://svn.example.com/changelog/?cs=%s'

If a URL is specified for this parameter, then it will be used to create a link to the Subversion browser URL corresponding to the current revision number. It will also be used to create links to any other revision numbers mentioned in the commit message. The URL must have the "%s" format where the Subversion revision number should be put into the URL.

svnweb_url

svnnotify --svnweb-url 'http://svn.example.com/index.cgi/revision/?rev=%s'
svnnotify -S 'http://svn.example.net/index.cgi/revision/?rev=%s'

Deprecated. Use revision_url instead.

viewcvs_url

svnnotify --viewcvs-url 'http://svn.example.com/viewcvs/?rev=%s&view=rev'

Deprecated. Use revision_url instead.

ticket_map

svnnotify --ticket-map '\[?#\s*(\d+)\s*\]?=http://example.com/ticket?id=%s' \
          --ticket-map 'rt=http://rt.cpan.org/NoAuth/Bugs.html?id=%s' \
          --ticket-map '\b([A-Z0-9]+-\d+)\b=http://jira/browse/%s'

Specifies a mapping between a regular expression and a URL. The regular expression should return a single match to be interpolated into the URL, which should be a sprintf format using "%s" to place the match (usually the ticket identifier) from the regex. The command-line option may be specified any number of times for different ticketing systems. To the API, it must be passed as a hash reference.

The first example matches "[#1234]" or "#1234" or "[# 1234]". This regex should be as specific as possible, preferably wrapped in "\b" to match word boundaries. If you're using SVN::Notify::HTML, be sure to read its documentation for a different regular expression requirement!

Optionally, the key value can be a placeholder for a regular expression used internally by SVN::Notify to match strings typically used for well-known ticketing systems. Those keys are:

rt: Matches Request Tracker (RT) ticket references of the form "Ticket # 12", "ticket 6", "RT # 52", "rt 52", "RT-Ticket # 213" or even "Ticket#1066".
bugzilla: Matches Bugzilla bug references of the form "Bug # 12" or "bug 6" or even "Bug#1066".
jira: Matches JIRA references of the form "JRA-1234".
gnats: Matches GnatsWeb references of the form "PR 1234".

rt_url

svnnotify --rt-url 'http://rt.cpan.org/NoAuth/Bugs.html?id=%s'
svnnotify -T 'http://rt.perl.org/NoAuth/Bugs.html?id=%s'

A shortcut for --ticket-map 'rt=$url' provided for backwards compatibility.

bugzilla_url

svnnotify --bugzilla-url 'http://bugzilla.mozilla.org/show_bug.cgi?id=%s'
svnnotify -B 'http://bugs.bricolage.cc/show_bug.cgi?id=%s'

A shortcut for --ticket-map 'bugzilla=$url' provided for backwards compatibility.

jira_url

svnnotify --jira-url 'http://jira.atlassian.com/secure/ViewIssue.jspa?key=%s'
svnnotify -J 'http://nagoya.apache.org/jira/secure/ViewIssue.jspa?key=%s'

A shortcut for --ticket-map 'jira=$url' provided for backwards compatibility.

gnats_url

svnnotify --gnats-url 'http://gnatsweb.example.com/cgi-bin/gnatsweb.pl?cmd=view&pr=%s'
svnnotify -G 'http://gnatsweb.example.com/cgi-bin/gnatsweb.pl?cmd=view&pr=%s'

A shortcut for --ticket-map 'gnats=$url' provided for backwards compatibility.

ticket_url

svnnotify --ticket-url 'http://ticket.example.com/showticket.html?id=%s'

Deprecated. Use ticket_map, instead.

ticket_regex

svnnotify --ticket-regex '\[?#\s*(\d+)\s*\]?'

Deprecated. Use ticket_map, instead.

verbose

svnnotify --verbose -V

A value between 0 and 3 specifying how verbose SVN::Notify should be. The default is 0, meaning that SVN::Notify will be silent. A value of 1 causes SVN::Notify to output some information about what it's doing, while 2 and 3 each cause greater verbosity. To set the verbosity on the command line, simply pass the --verbose or -V option once for each level of verbosity, up to three times. Output from SVN::Notify is sent to STDOUT.

boundary

The boundary to use between email body text and attachments. This is normally generated by SVN::Notify.

subject

The subject of the email to be sent. This attribute is normally generated by prepare_subject().

Class Methods

content_type

my $content_type = SVN::Notify->content_type;

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

register_attributes

SVN::Notify::Subclass->register_attributes(
    foo_attr => 'foo-attr=s',
    bar      => 'bar',
    bat      => undef,
);

This class method is used by subclasses to register new attributes. Pass in a list of key/value pairs, where the keys are the attribute names and the values are option specifications in the format required by Getopt::Long. SVN::Notify will create accessors for each attribute, and if the corresponding value is defined, it will be used by the get_options() class method to get a command-line option value.

See <LSVN::Notify::HTML|SVN::Notify::HTML> for an example usage of register_attributes().

get_options

my $options = SVN::Notify->get_options;

Parses the command-line options in @ARGV to a hash reference suitable for passing as the parameters to new(). See "new" for a complete list of the supported parameters and their corresponding command-line options.

This method use Getopt::Long to parse @ARGV. It then looks for any handler and filter options and, if it finds any, loads the appropriate classes and parses any options they requires from @ARGV. Subclasses and filter classes should use register_attributes() to register any attributes and options they require.

After that, on Perl 5.8 and later, it decodes all of the string option from the encoding specified by the encoding option or UTF-8. This allows options to be passed to SVN::Notify in that encoding and end up being displayed properly in the resulting notification message.

file_label_map

my $map = SVN::Notify->file_label_map;

Returns a hash reference of the labels to be used for the lists of files. A hash reference of file lists is stored in the files attribute after prepare_files() has been called. The hash keys in that list correspond to Subversion status codes, and these are mapped to their appropriate labels by the hash reference returned by this method:

{ U => 'Modified Paths',
  A => 'Added Paths',
  D => 'Removed Paths',
  _ => 'Property Changed'
}

find_exe

my $exe = SVN::Notify->find_exe($exe_name);

This method searches through the system path, as well as the extra directories /usr/local/bin and /usr/sbin (because they're common paths for svnlook and sendmail for an executable file with the name $exe_name. The first one it finds is returned with its full path. If none is found, find_exe() returns undef.

Instance Interface

Instance Methods

prepare

$notifier->prepare;

Prepares the SVN::Notify object, collecting all the data it needs in preparation for sending the notification email. Really it's just a shortcut for:

$notifier->prepare_recipients;
$notifier->prepare_contents;
$notifier->prepare_files;
$notifier->prepare_subject;

Only it returns after the call to prepare_recipients() if there are no recipients (that is, as when recipients are specified solely by the to_regex_map or to_email_map parameter and none of the regular expressions match any of the affected directories).

prepare_recipients

$notifier->prepare_recipients;

Collects and prepares a list of the notification recipients. The recipients are a combination of the value passed to the to parameter as well as any email addresses specified as keys in the hash reference passed to_regex_map parameter or values passed to the to_email_map parameter, where the corresponding regular expressions stored in the hash matches one or more of the names of the directories affected by the commit.

If the subject_cx parameter to new() has a true value, prepare_recipients() also determines the directory name to use for the context.

prepare_contents

$notifier->prepare_contents;

Prepares the contents of the commit message, including the name of the user who triggered the commit (and therefore the contents of the "From" header to be used in the email) and the log message.

prepare_files

$notifier->prepare_files;

Prepares the lists of files affected by the commit, sorting them into their categories: modified files, added files, and deleted files. It also compiles a list of files wherein a property was set, which might have some overlap with the list of modified files (if a single commit both modified a file and set a property on it).

If the subject_cx parameter was specified and a single file was affected by the commit, then prepare_files() will also specify that file name as the context to be used in the subject line of the commit email.

prepare_subject

$notifier->prepare_subject;

Prepares the subject line for the notification email. This method must be called after prepare_recipients() and prepare_files(), since each of those methods potentially sets up the context for use in the the subject line. The subject may have a prefix defined by the subject_prefix parameter to new(), it has the revision number, it might have the context if the subject_cx specified a true value, and it will have the first sentence or line of the commit, whichever is shorter. The subject may then be truncated to the maximum length specified by the max_sub_length parameter.

execute

$notifier->execute;

Sends the notification message. This involves opening a file handle to sendmail or a tied file handle connected to an SMTP server and passing it to output(). This is the main method used to send notifications or execute any other actions in response to Subversion activity.

output

$notifier->output($file_handle);
$notifier->output($file_handle, $no_headers);

Called internally by execute() to output a complete email message. The file a file handle, so that output() and its related methods can print directly to the email message. The optional second argument, if true, will suppress the output of the email headers.

Really output() is a simple wrapper around a number of other method calls. It is thus essentially a shortcut for:

$notifier->output_headers($out) unless $no_headers;
$notifier->output_content_type($out);
$notifier->start_body($out);
$notifier->output_metadata($out);
$notifier->output_log_message($out);
$notifier->output_file_lists($out);
if ($notifier->with_diff) {
    my $diff_handle = $self->diff_handle;
    if ($notifier->attach_diff) {
        $notifier->end_body($out);
        $notifier->output_attached_diff($out, $diff_handle);
    } else {
        $notifier->output_diff($out, $diff_handle);
        $notifier->end_body($out);
    }
} else {
    $notifier->end_body($out);
}
$notifier->end_message($out);

output_headers

$notifier->output_headers($file_handle);

Outputs the headers for the notification message headers. Should be called only once for a single email message.

output_content_type

$notifier->output_content_type($file_handle);

Outputs the content type and transfer encoding headers. These demarcate the body of the message. If the attach_diff parameter was set to true, then a boundary string will be generated and the Content-Type set to "multipart/mixed" and stored as the boundary attribute.

After that, this method outputs the content type returned by content_type(), the character set specified by the encoding attribute, and a Content-Transfer-Encoding of "8bit". Subclasses can either rely on this functionality or override this method to provide their own content type headers.

start_body

$notifier->start_body($file_handle);

This method starts the body of the notification message, which means that it outputs the contents of the header attribute, if there are any. Otherwise it outputs nothing, but see subclasses for other behaviors.

output_metadata

$notifier->output_metadata($file_handle);

This method outputs the metadata of the commit, including the revision number, author (user), and date of the revision. If the author_url or revision_url attributes have been set, then the appropriate URL(s) for the revision will also be output.

output_log_message

$notifier->output_log_message($file_handle);

Outputs the commit log message, as well as the label "Log Message".

output_file_lists

$notifier->output_file_lists($file_handle);

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

end_body

$notifier->end_body($file_handle);

Closes out the body of the email by outputting the contents of the footer attribute, if any, and then a couple of newlines. Designed to be called when the body of the message is complete, and before any call to output_attached_diff().

output_diff

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

Reads diff data from $diff_file_handle and outputs it to to $out_file_handle.

output_attached_diff

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

Reads diff data from $diff_file_handle and outputs it to to $out_file_handle as an attachment.

end_message

$notifier->end_message($file_handle);

Outputs the final part of the message,. In this case, that means only a boundary if the attach_diff parameter is true. Designed to be called after any call to output_attached_diff().

run_ticket_map

$notifier->run_ticket_map( \&callback, @params );

Loops over the ticket systems you have defined, calling the $callback function for each one, passing to it the regex, url and @params specified as its parameters.

run_filters

$data = $notifier->run_filters( $output_type => $data );

Runs the filters for $output_type on $data. Used internally by SVN::Notify and by subclasses.

filters_for

my $filters = $notifier->filters_for( $output_type );

Returns an array reference of of the filters loaded for $output_type. Returns undef if there are no filters have been loaded for $output_type.

diff_handle

my $diff = $notifier->diff_handle;
while (<$diff>) { print }

Returns a file handle reference providing access to the the commit diff. It will usually be passed as the second argument to output_diff() or output_attached_diff().

Accessors

repos_path

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

Gets or sets the value of the repos_path attribute.

revision

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

Gets or sets the value of the revision attribute.

to

my $to = $notifier->to;
$notifier = $notifier->to($to);
my @tos = $notifier->to;
$notifier = $notifier->to(@tos);

Gets or sets the list of values stored in the to attribute. In a scalar context, it returns only the first value in the list, for backwards compatibility with older versions of SVN::Notify. In list context, it of course returns the entire list. Pass in one or more values to set all of the values for the to attribute.

to_regex_map

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

Gets or sets the value of the to_regex_map attribute, which is a hash reference of email addresses mapped to regular expressions.

to_email_map

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

Gets or sets the value of the to_email_map attribute, which is a hash reference of regular expressions mapped to email addresses.

from

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

Gets or sets the value of the from attribute.

user_domain

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

Gets or sets the value of the user_domain attribute.

svnlook

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

Gets or sets the value of the svnlook attribute.

sendmail

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

Gets or sets the value of the sendmail attribute.

set_sender

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

Gets or sets the value of the set_sender attribute.

smtp

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

Gets or sets the value of the smtp attribute.

encoding

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

Gets or sets the value of the encoding attribute. charset is an alias preserved for backward compatibility.

svn_encoding

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

Gets or sets the value of the svn_encoding attribute.

diff_encoding

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

Gets or sets the value of the diff_encoding attribute.

language

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

Gets or sets the value of the language attribute.

env_lang

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

Gets or sets the value of the env_lang attribute, which is set to $notify->language . '.' . $notify->encoding when language is set, and otherwise is undef. This attribute is used to set the $LANG environment variable, if it is not already set by the environment, before executing sendmail.

svn_env_lang

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

Gets or sets the value of the svn_env_lang attribute, which is set to $notify->language . '.' . $notify->svn_encoding when language is set, and otherwise is undef. This attribute is used to set the $LANG environment variable, if it is not already set by the environment, before executing svnlook. It is not used for svnlook diff, however, as the diff itself will be emitted in raw octets except for headers such as "Modified", which need to be in English so that subclasses can parse them. Thus, $LANG is always set to "C" for the execution of svnlook diff.

with_diff

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

Gets or sets the value of the with_diff attribute.

attach_diff

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

Gets or sets the value of the attach_diff attribute.

diff_switches

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

Gets or sets the value of the diff_switches attribute.

reply_to

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

Gets or sets the value of the reply_to attribute.

add_headers

my $add_headers = $notifier->add_headers;
$notifier = $notifier->add_headers({
    'X-Accept' => [qw(This That)],
    'X-Reject' => 'Me!',
});

Gets or sets the value of the add_headers attribute, which is a hash reference of the headers to be added to the email message. If one header needs to appear multiple times, simply pass the corresponding hash value as an array reference of each value for the header. Not to be confused with the header accessor, which gets and sets text to be included at the beginning of the body of the email message.

subject_prefix

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

Gets or sets the value of the subject_prefix attribute.

subject_cx

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

Gets or sets the value of the subject_cx attribute.

strip_cx_regex

my $strip_cx_regex = $notifier->strip_cx_regex;
$notifier = $notifier->strip_cx_regex($strip_cx_regex);
my @strip_cx_regexs = $notifier->strip_cx_regex;
$notifier = $notifier->strip_cx_regex(@strip_cx_regexs);

Gets or sets the list of values stored in the strip_cx_regex attribute. In a scalar context, it returns only the first value in the list; in list context, it of course returns the entire list. Pass in one or more values to set all of the values for the strip_cx_regex attribute.

max_sub_length

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

Gets or sets the value of the max_sub_length attribute.

max_diff_length

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

Gets or set the value of the max_diff_length attribute.

author_url

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

Gets or sets the value of the author_url attribute.

revision_url

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

Gets or sets the value of the revision_url attribute.

svnweb_url

Deprecated. Pleas use revision_url(), instead.

viewcvs_url

Deprecated. Pleas use revision_url(), instead.

verbose

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

Gets or sets the value of the verbose attribute.

boundary

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

Gets or sets the value of the boundary attribute. This string is normally set by a call to output_headers(), but may be set ahead of time.

user

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

Gets or sets the value of the user attribute, which is set to the value pulled in from svnlook by the call to prepare_contents().

date

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

Gets or sets the value of the date attribute, which is set to the value pulled in from svnlook by the call to prepare_contents().

message

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

Gets or sets the value of the message attribute, which is set to an array reference of strings by the call to prepare_contents().

message_size

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

Gets or sets the value of the message_size attribute, which is set to the value pulled in from svnlook by the call to prepare_contents().

subject

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

Gets or sets the value of the subject attribute, which is normally set by a call to prepare_subject(), but may be set explicitly.

files

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

Gets or sets the value of the files attribute, which is set to a hash reference of change type mapped to arrays of strings by the call to prepare_files().

header

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

Gets or set the value of the header attribute. Not to be confused with the add_headers attribute, which manages headers to be inserted into the notification email message headers.

footer

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

Gets or set the value of the footer attribute.

Character Encoding Support

SVN::Notify has comprehensive support for character encodings, but since it cannot always know what encodings your system supports or in which your data is stored in Subversion, it needs your help. In plain English, here's what you need to know to make non-ASCII characters look right in SVN::Notify's messages:

The encoding for messages

To tell SVN::Notify what character encoding to use when it sends messages, use the --encoding option. It defaults to "UTF-8", which should cover the vast majority of needs. You're using it in your code already, right?
The character set you use in your log messages

To tell SVN::Notify the character encoding that you use in Subversion commit log messages, as well as the names of the files in Subversion, use the --svn-encoding option, which defaults to the same value as --encoding. If, for example, you write log messages in Big5, pass --svn-encoding Big5.
The character set you use in your code

To tell SVN::Notify the character encoding that you use in the files stored in Subversion, and therefore that will be output in diffs, use the --diff-encoding option, which defaults to the same value as --svn-encoding. If, for example, you write code in euc-jp but write your commit log messages in some other encoding, pass --diff-encoding euc-jp.
The locales supported by your OS

SVN::Notify uses the values passed to --encoding, --svn-encoding, and --diff-encoding to read in data from svnlook, convert it to Perl's internal encoding, and to output messages in the proper encoding. Most of the time, if you write code in UTF-8 and want messages delivered in UTF-8, you can ignore these options.

Sometimes, however, svnlook converts its output to some other encoding. That encoding is controlled by the $LANG environment variable, which corresponds to a locale supported by your OS. (See perllocale for instructions for finding the locales supported by your system.) If your system supports UTF-8 locales but defaults to using some other locale (causing svnlook to output log messages in the wrong encoding), then all you have to do is pass the --language option to get SVN::Notify to tell svnlook to use it. For example, if all of your data is in UTF-8, pass --language en_US to get SVN::Notify to use the en_US.UTF-8 locale. Likewise, pass --language sv_SE to force the use of the sv_SE.UTF-8 locale.

Sometimes, however, the system does not support UTF-8 locales. Or perhaps you use something other than UTF-8 in your log messages or source code. This should be no problem, as SVN::Notify uses the encoding options to determine the locales to use. For example, if your OS offers the en_US.ISO88591 locale, pass both --svn-encoding and --language, like so:
```
--svn-encoding ISO-8859-1 --language en_US
```
SVN::Notify will set the $LANG environment variable to "en_US.ISO88591", which svnlook will use to convert log messages from its internal form to ISO-8859-1. SVN::Notify will convert the output from svnlook to UTF-8 (or whatever --encoding you've specified) before sending the message. Of course, if you have characters that don't correspond to ISO-8859-1, you'll still get some garbage characters. It is ideal when the OS locale supports the same encodings as you use in your source code and log messages, though that's not always the case.

And finally, because the names and spellings that OS vendors use for locales can vary widely, SVN::Notify will occasionally get the name of the encoding wrong, in which case you'll see warnings such as this:
```
svnlook: warning: cannot set LC_CTYPE locale
svnlook: warning: environment variable LANG is en_US.ISO88591
svnlook: warning: please check that your locale name is correct
```
In such a case, if all of your data and your log messages are stored in the same encoding, you can set the $LANG environment variable directly in your post-commit script before running svnnotify:
```
LANG=en_US.ISO-88591 svnnotify -p "$1" -r "$2"
```
If the $LANG environment variable is already set in this way, SVN::Notify will not set it before shelling out to svnlook.

This looks like a lot of information, and it is. But in most cases, if you exclusively use UTF-8 (or ASCII!) in your source code and log messages, and your OS defaults to a UTF-8 locale, things should just work.

Support

This module is stored in an open GitHub repository. Yes, I'm aware of the irony. Nevertheless, feel free to fork and contribute!

Please file bug reports via GitHub Issues or by sending mail to bug-SVN-Notify@rt.cpan.org.

Author

David E. Wheeler <david@justatheory.com>

Copyright and License

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

To install SVN::Notify, copy and paste the appropriate command in to your terminal.

cpanm

cpanm SVN::Notify

CPAN shell

perl -MCPAN -e shell
install SVN::Notify

For more information on module installation, please visit the detailed CPAN module installation guide.

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