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PORTSCOUT(1)	      User Contributed Perl Documentation	  PORTSCOUT(1)

NAME
       portscout - A tool to scan for new versions of FreeBSD ports.

SYNOPSIS
	   portscout build

	   while (lazy)	{
	       portscout rebuild
	       portscout check
	       portscout showupdates
	   }

DESCRIPTION
       Portscout is an automated system	designed to search for new versions of
       software	available in the FreeBSD ports tree. It	is primarily designed
       for use by FreeBSD port maintainers, who	can avoid trailing around
       dozens of websites looking for updates. However,	I hope that others
       might find it useful too.

       The current version of Portscout	is also	capable	of checking OpenBSD's
       ports, NetBSD's pkgsrc, and also	a generic list of software from	an XML
       file.

SYSTEM REQUIREMENTS
       The following software is required to run Portscout:

	   - PostgreSQL	or SQLite
	   - POSIX-compatible system
	   - The FreeBSD ports tree
	   - Berkeley make
	   - Perl 5.6+

       Plus we need a few Perl modules:

	   - URI
	   - DBD::Pg or	DBD::SQLite
	   - Net::FTP
	   - Proc::Queue
	   - LWP::UserAgent
	   - MIME::Lite
	   - XML::XPath
	   - XML::XPath::XMLParser
	   - JSON

       SQLite support is currently limited to non-forking mode only. That is,
       if you decide to	use SQLite, Portscout will only	check one port at a
       time; this will severely	limit Portscout's speed/efficiency. It is
       therefore suggested that	SQLite only be used for	relatively light
       workloads.

INITIAL	SET-UP
   Initialise Database
       The recommended database	backend	is PostgreSQL.

       Option One: PostgreSQL

       Create database:

	   # createuser	-U pgsql -P portscout
	   # createdb -U pgsql portscout

       Execute the included pgsql_init.sql script via "psql":

	   # psql portscout portscout <	sql/pgsql_init.sql

       This will create	the database tables for	you.

       Option Two: SQLite

       Create a	database file with the included	script:

	   # sqlite3 /var/db/portscout.db < sql/sqlite_init.sql

   Configure Portscout
       Review portscout.conf, and check	it suits your needs. The defaults
       should be reasonable for	most people. You can reduce "num_children" and
       "workqueue_size"	if you don't want Portscout sucking up all your
       resources.

       Please note that	Portscout's internal defaults differ from the defaults
       in portscout.conf - this	is because without a config file, Portscout
       tries to	be "portable" and use its own directory	for storing things
       under, whereas if a config file is found, it assumes it is installed
       and being used "system-wide".

       Any of the options in portscout.conf can	also be	set on the fly on the
       command line. For example:

	   $ portscout --precious_data --num_children=8

   Update Ports	Tree (FreeBSD Only)
       Ensure your ports tree is up to date.

   Populate Database
       We need now to populate the database with the software we want to
       check.

       Option One: FreeBSD

       If you're using Portscout to check FreeBSD ports, run:

	   $ portscout build

       This takes around 70 minutes for	me. Basically, Portscout is extracting
       all the information it needs from the ports tree. Ports (by virtue of
       make) is	slow; the database we're building is much faster. After	this
       initial build, we will do incremental 'builds', only updating what has
       changed.

       Option Two: Other Software Repositories

       If you would like to check another software repository/source,
       Portscout has several options.

       Firstly,	NetBSD and OpenBSD's ports trees are supported by the standard
       "Ports" backend.	See portscout.conf for details on how to configure
       this.  Make sure	you've got the correct "make" at hand for Portscout if
       you're checking either of these from another operating system (e.g.
       FreeBSD).

       Caveat: neither of the above have been well-tested, and support should
       probably	be considered experimental.

       Secondly, you can use the "XML" backend for a finite list of software
       that you	want to	manage by hand.	See Portscout::DataSrc::XML for	more
       information.

REGULAR	OPERATION
   Update Ports	Tree (FreeBSD Only)
       Ensure your ports tree is up to date.

   Incremental Database	Update
       If your ports tree / data source	was updated since your last
       build/rebuild, ensure Portscout knows about the changes:

	   $ portscout rebuild

   Run Version Checks
	   $ portscout check

       This will instruct Portscout to search for new distfiles	for each port
       in the database.	It will	take several hours for a complete ports	tree
       scan.

   View	Results
       Now you've got some results, you	can view them.

       Option One: HTML	Reports

	   $ portscout generate

       This will put HTML pages	inside "html_data_dir" - existing pages	will
       be deleted.

       Option Two: E-Mail Reports

	   $ portscout mail

       This will send out an e-mail message to the maintainers of ports	with
       updates.	 The e-mail messages are opt-in; you will need to add
       addresses to the	database before	any e-mails are	sent out.

       Option Three: Console Summary

	   $ portscout showupdates

       This will output	a summary of software with outstanding updates.	It is
       recommended if you're checking a	limited	set of software/ports.

ADDING E-MAIL ADDRESSES
       If you want to send e-mail reports to maintainers of updated of
       software, the e-mail addresses need to be registered with Portscout.
       This is a safeguard to ensure no	one gets e-mails they don't want.

       Use the following to manage these e-mail	"subscriptions":

	   $ portscout add-mail	dave@example.net

	   $ portscout remove-mail john@localhost

	   $ portscout show-mail

UPGRADING
       When upgrading, check the sql directory for any relevant	database
       schema upgrade scripts. If there	were multiple schema updates between
       the previous version of Portscout and the version to which you have
       upgraded, be sure to run	each script in sequence	to arrive at the
       latest database version.

CHECKING ALGORITHM
       For anyone interested in	how Portscout operates,	here is	a high-level
       summary of the checking algorithm in use:

	Test 1:
	  1) Order master sites	using previous reliability data.
	  2) Attempt to	get an FTP listing or web server index from each site.
	  3) Extract version from files	found; compare to current version.
	  4) Skip other	tests if new or	current	version	is found.

	Test 2:
	  1) Increment each part of the	port's version string and attempt to
	     download file, e.g. for 1.4.2, try	2.0.0, 1.5.0 and 1.4.3

       The last	test is	not yet	included in Portscout, but I may add it	at
       some point, depending on	the results of testing:

	Test 3:
	  1) Locate port's WWW page and	spider site in an attempt to find a
	     page that looks like a "download area". Scan page for possible
	     links to new files.

BUGS AND LIMITATIONS
       o   Portscout tries to make a reasonable	guess when it encounters
	   version strings in a	different format to the	original distname
	   (e.g. 3.2, 3.6-pre7), but this is difficult and error-prone since
	   vendor version schemes vary wildly.

	   The only real problem at the	moment is version strings which	seem
	   to to count backwards (e.g. 2.11 -> 2.2).

       o   There's some	difficulty in deciding what to do with trailing	zeros
	   in version guesses. Currently, they are left	intact,	but this is
	   not always going to be the right course of action. In other words,
	   from	4.3.9, will the	next major version be 4.4.0 or 4.4?

       o   The restrict_* variables don't affect generate/mail.

       o   Portscout doesn't handle ports with multiple	distfiles very well.

       o   At least one	port (archivers/zip, as	of 2010-04-28) doesn't provide
	   a version string in the vendor's format. portscout doesn't know
	   what	to do in this case, although the version could theoretically
	   be ascertained from the distfile name.

COPYRIGHT
       Copyright (C) 2005-2011,	Shaun Amott <shaun@inerd.com>.	All rights
       reserved.

perl v5.32.1			  2019-10-11			  PORTSCOUT(1)

NAME | SYNOPSIS | DESCRIPTION | SYSTEM REQUIREMENTS | INITIAL SET-UP | REGULAR OPERATION | ADDING E-MAIL ADDRESSES | UPGRADING | CHECKING ALGORITHM | BUGS AND LIMITATIONS | COPYRIGHT

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