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Additional utils for Perl symbols manipulation

The SVN::Hook Perl module provides a programmable interface to manage hook scripts for Subversion.

SVN-Look is a caching wrapper aroung the svnlook command. The svnlook command is the workhorse of Subversion hook scripts, being used to gather all sorts of information about a repository, its revisions, and its transactions. This script provides a simple object oriented interface to a specific svnlook invocation, to make it easier to hook writers to get and use the information they need. Moreover, all the information gathered buy calling the svnlook command is cached in the object, avoiding repetitious calls.

This module mirrors remote repositories to a local Subversion repository. It supports remote Subversion repositories accessible via the SVN::Ra interface; other version control systems (such as Perforce and CVS) are also supported via the VCP module.

The Mmap module lets you use mmap to map in a file as a Perl variable rather than reading the file into dynamically allocated memory. The advantage of this is that several processes may share one copy of the file or string, saving memory, and concurrently making changes to portions of the file or string. When not used with a file, it is an alternative to SysV shared memory that places no arbitrary size limits on the shared memory area, and efficiently handles sparse memory usage.

Sys::Sendfile provides access to your operating system's sendfile facility. It allows you to efficiently transfer data from one filehandle to another. Typically the source is a file on disk and the sink is a socket, and some operating systems may not even support other usage.

Return signal constants for this host.

Sys::Trace provides a way to programmatically run or trace a program and see the system calls it makes. This can be useful during testing as a way to ensure a particular file is actually opened, or another hard to test interaction actually occurs. Currently supported tracing mechanisms are ktrace, strace and truss.

Execute a command, and returns output from STDOUT and STDERR. Much like system(). $? is set. (Much cheaper than using open3() to get the same info.) If $debug is set, on-the fly diagnostics will be reported about how much data is being read.

This class may be used for sending email messages for Subversion repos- itory activity. There are a number of different modes supported, and SVN::Notify is fully subclassable, to easily add new functionality. By default, a list of all the files affected by the commit will be assem- bled 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.