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INSTALL
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			CDS Invenio INSTALLATION
			========================

			Revision: $Id$

			About
			=====

			This document specifies how to build, customize, and install CDS
			Invenio for the first time. See RELEASE-NOTES if you are upgrading
			from a previous CDS Invenio release.

			Contents
			========

			0. Prerequisites
			1. Quick instructions for the impatient CDS Invenio admin
			2. Detailed instructions for the patient CDS Invenio admin
			3. Configuration philosophy explained and elucidated

			0. Prerequisites
			================

			Here is the software you need to have around before you
			start installing CDS Invenio:

			a) Unix-like operating system. The main development and
			production platform for CDS Invenio at CERN is Debian GNU/Linux,
			but any Unix system supporting the software listed below
			should do. Note that localhost should have an MTA running
			so that CDS Invenio can email notification alerts or registration
			information to the end users, contact moderators and
			reviewers of submitted documents, inform administrators about
			various runtime system information, etc.

			Note that if you are using Debian "Sarge" GNU/Linux, you can
			install most of the prerequisites and recommendations by
			running:

			$ sudo apt-get install libapache2-mod-python2.3 \
			libapache2-mod-php4 apache2-mpm-prefork mysql-server \
			mysql-client php4-cli php4-mysql python2.3-mysqldb \
			python2.3-numeric python2.3-4suite rxp \
			wml gnuplot xpdf-utils gs-common antiword catdoc wv \
			html2text ppthtml xlhtml clisp gettext

			If available, you can also install:

			$ sudo apt-get install python2.3-psyco sbcl cmucl

			The last three packages are not available on all Debian
			"Sarge" GNU/Linux architectures, but they are not required,
			only recommended, so you can safely continue without them if
			they are not present on your architecture (e.g. AMD64).

			b) MySQL server (may be on a remote machine), and MySQL client
			(must be available locally too). MySQL versions 4.0.x are
			recommended, versions above 4.1.0 may cause troubles.
			Please set the variable ``max_allowed_packet'' in your
			``my.cnf'' init file to at least 4M.
			<http://mysql.com/>

			c) Apache 2 server, with support for loading DSO modules, and
			optionally with SSL support for HTTPS-secure user
			authentication. Tested mainly with version 2.0.43 and above.
			Apache 2.x is required for the mod_python module (see below).
			<http://httpd.apache.org/>

			Note for FreeBSD users: Thierry Thomas <thierry@FreeBSD.org>
			reports troubles with Python open() in the Apache 2 and
			mod_python context. The solution is either (1) to compile
			Apache 2 with --enable-threads (the port has a knob
			WITH_THREADS to do that); or (2) to add the two following two
			lines in Apache's envvars file:
			LD_PRELOAD=/usr/lib/libc_r.so # or libpthread.so
			export LD_PRELOAD

			d) Python v2.3 or above:
			<http://python.org/>
			as well as the following Python modules:
			- (mandatory) MySQLdb:
			<http://sourceforge.net/projects/mysql-python>
			- (mandatory) Numeric module (v21 and above):
			<http://sourceforge.net/projects/numpy>
			- (recommended) PyStemmer, for indexing and ranking:
			<http://sourceforge.net/projects/pystemmer/>
			- (recommended) PyRXP, for very fast XML MARC processing:
			<http://www.reportlab.org/pyrxp.html>
			- (recommended) Gnuplot.Py, for producing graphs:
			<http://gnuplot-py.sourceforge.net/>
			- (optional) 4suite, slower alternative to PyRXP:
			<http://4suite.org/>
			- (optional) Psyco, to speed up the code at places:
			<http://psyco.sourceforge.net/>
			- (optional) RDFLib, to use RDF ontologies and thesauri:
			<http://rdflib.net/>
			- (optional) mechanize, to run regression web tests:
			<http://wwwsearch.sourceforge.net/mechanize/>

			e) mod_python Apache module. Tested mainly with versions
			3.0BETA4 and above. mod_python 3.x is required for Apache 2.
			Previous versions (as well as Apache 1 ones) exhibited some
			problems with MySQL connectivity in our experience.
			<http://www.modpython.org/>

			f) PHP compiled as Apache module, including MySQL support.
			Tested mainly with PHP version 4.3.0 and above. (Note that if
			you are compiling mod_php from source, it is good to compile
			it against the same MySQL client library as mod_python, so
			that the two Apache modules are using the same MySQL client
			library. We saw Apache/PHP/Python problems in the past when
			they weren't. A care should be taken even when you are using
			precompiled packages. For example, on Ubuntu 5.10 "Breezy
			Badger" it seems that python2.4-mysqldb depends on
			libmysqlclient14, while php5-mysql on libmysqlclient12, which
			leads to Apache segmentation faults.)
			<http://www.php.net/>

			g) PHP compiled as a standalone command-line executable (CLI)
			(in addition to Apache module) is required, too. As of PHP
			4.3.0 you'll obtain the CLI executable by default, so you
			don't have to compile it separately. Note that PHP CLI should
			be compiled with the process control support (--enable-pcntl),
			the XML support (--with-xml), and the compression library
			(--with-zlib).
			<http://www.php.net/manual/en/install.commandline.php>
			<http://www.php.net/manual/en/ref.pcntl.php>

			h) WML - Website META Language. Tested mainly with versions
			2.0.8 and 2.0.9. Note that on Red Hat Linux 9 the WML 2.0.9
			compiled with Perl 5.8.0 exhibits problems, so you better use
			downgraded/upgraded Perl for compiling WML on that platform.
			<http://www.engelschall.com/sw/wml/>

			i) If you want to be able to extract references from PDF fulltext
			files, then you need to install pdftotext version 3 at least.
			<http://www.foolabs.com/xpdf/home.html>

			j) If you want to be able to search for words in the fulltext files
			(i.e. to have fulltext indexing), then you need as well to install
			some of the following tools:
			- for PDF files: pdftotext or pstotext
			<http://www.foolabs.com/xpdf/home.html>
			<http://www.cs.wisc.edu/~ghost/doc/AFPL/>
			- for PostScript files: pstotext or ps2ascii
			<http://www.cs.wisc.edu/~ghost/doc/AFPL/>
			- for MS Word files: antiword, catdoc, or wvText
			<http://www.winfield.demon.nl/index.html>
			<http://www.ice.ru/~vitus/catdoc/index.html>
			<http://sourceforge.net/projects/wvware>
			- for MS PowerPoint files: pptHtml and html2text
			<http://www.xlhtml.org/>
			<http://userpage.fu-berlin.de/~mbayer/tools/html2text.html>
			- for MS Excel files: xlhtml and html2text
			<http://chicago.sourceforge.net/xlhtml/>
			<http://userpage.fu-berlin.de/~mbayer/tools/html2text.html>

			k) If you have chosen to install fast XML MARC Python processors
			in the step d) above, then you have to install the parsers
			themselves:
			- (optional) RXP:
			<http://www.cogsci.ed.ac.uk/~richard/rxp.html>
			- (optional) 4suite:
			<http://4suite.org/>

			l) (recommended) Gnuplot, the command-line driven interactive
			plotting program. It is used to display download and citation
			history graphs on the Detailed record pages on the web
			interface. Note that Gnuplot is not required, only
			recommended.
			<http://www.gnuplot.info/>

			m) (recommended) A Common Lisp implementation, such as CLISP,
			SBCL or CMUCL. It is used for the web server log analysing
			tool and the metadata checking program. Note that any of the
			three implementations CLISP, SBCL, or CMUCL will do. CMUCL
			produces fastest machine code, but it does not support UTF-8
			yet. Pick up CLISP if you don't know what to do. Note that a
			Common Lisp implementation is not required, only recommended.
			<http://clisp.cons.org/>
			<http://www.cons.org/cmucl/>
			<http://sbcl.sourceforge.net/>

			n) GNU Gettext, a set of tools that makes it possible to
			translate the application in multiple languages.
			<http://www.gnu.org/software/gettext/>
			This is available by default on many systems.

			Note that the configure script checks whether you have all the
			prerequisite software installed and that it won't let you continue
			unless everything is in order. It also warns you if it cannot find
			some optional but recommended software.


			1. Quick instructions for the impatient CDS Invenio admin
			=========================================================

			$ cd /usr/local/src/
			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz
			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz.md5
			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz.sig
			$ md5sum -v -c cds-invenio-0.90.1.tar.gz.md5
			$ gpg --verify cds-invenio-0.90.1.tar.gz.sig cds-invenio-0.90.1.tar.gz
			$ tar xvfz cds-invenio-0.90.1.tar.gz
			$ cd cds-invenio-0.90.1
			$ ./configure --prefix=/opt/cds-invenio \
			--with-weburl=http://webserver.domain.com \
			--with-sweburl=https://webserver.domain.com \
			--with-dbhost=sqlserver.domain.com \
			--with-dbname=cdsinvenio \
			--with-dbuser=cdsinvenio \
			--with-dbpass=myp1ss \
			--with-python=/opt/python/bin/python2.3
			$ vi ./config/config.wml ## optional, but strongly recommended
			$ make
			$ mysql -h sqlserver.domain.com -u root -p mysql
			mysql> CREATE DATABASE cdsinvenio;
			mysql> GRANT ALL PRIVILEGES ON cdsinvenio.* TO cdsinvenio@webserver.domain.com IDENTIFIED BY 'myp1ss';
			$ sudo vi /path/to/apache/conf/httpd.conf ## see below in part 2
			$ sudo vi /path/to/php/conf/php.ini ## see below in part 2
			$ sudo /path/to/apache/bin/apachectl graceful
			$ make create-tables ## optional
			$ sudo ln -s /opt/cds-invenio/lib/python/invenio \
			/usr/local/lib/python2.3/site-packages/invenio \
			## optional
			$ make install
			$ make test ## optional
			$ sudo chown -R www-data /opt/cds-invenio/var
			$ make create-demo-site ## optional
			$ make load-demo-records ## optional
			$ make regression-test ## optional
			$ make remove-demo-records ## optional
			$ make drop-demo-site ## optional
			$ firefox http://webserver.domain.com/admin/ ## optional

			2. Detailed instructions for the patient CDS Invenio admin
			==========================================================

			The CDS Invenio uses standard GNU autoconf method to build and
			install its files. This means that you proceed as follows:

			$ cd /usr/local/src/

			Change to a directory where we will configure and build the
			CDS Invenio. (The built files will be installed into
			different "target" directories later.)

			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz
			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz.md5
			$ wget http://cdsware.cern.ch/download/cds-invenio-0.90.1.tar.gz.sig

			Fetch CDS Invenio source tarball from the CDS Software
			Consortium distribution server, together with MD5 checksum
			and GnuPG cryptographic signature files useful for verifying
			the integrity of the tarball.

			$ md5sum -v -c cds-invenio-0.90.1.tar.gz.md5

			Verify MD5 checksum.

			$ gpg --verify cds-invenio-0.90.1.tar.gz.sig cds-invenio-0.90.1.tar.gz

			Verify GnuPG cryptographic signature. Note that you may
			first have to import my public key into your keyring, if you
			haven't done that already:
			$ gpg --keyserver wwwkeys.pgp.net --recv-keys 0xBA5A2B67
			The output of the gpg --verify command should then read:
			Good signature from "Tibor Simko <tibor@simko.info>"
			You can safely ignore any trusted signature certification
			warning that may follow after the signature has been
			successfully verified.

			$ tar xvfz cds-invenio-0.90.1.tar.gz

			Untar the distribution tarball.

			$ cd cds-invenio-0.90.1

			Go to the source directory.

			$ ./configure --prefix=/opt/cds-invenio \
			--with-weburl=http://webserver.domain.com \
			--with-sweburl=https://webserver.domain.com \
			--with-dbhost=sqlserver.domain.com \
			--with-dbname=cdsinvenio \
			--with-dbuser=cdsinvenio \
			--with-dbpass=myp1ss \
			--with-python=/opt/python/bin/python2.3

			Configure essential CDS Invenio parameters, with the following
			signification:

			--prefix=/opt/cds-invenio

			CDS Invenio general installation directory, used to
			hold command-line binaries and program libraries
			containing the core CDS Invenio functionality, but
			also to store web pages, runtime log and cache
			information. Several subdirs like `bin', `lib', and
			`var' will be created inside the --prefix directory
			to this effect. Note that the --prefix directory
			should be chosen outside of the Apache htdocs tree,
			since only one subdirectory (prefix/var/www) is to be
			accessible directly on the Web (see below).

			--with-weburl=http://webserver.domain.com

			The URL denoting the home URL of your CDS Invenio
			installation. The files served by this URL will be
			located in `prefix/var/www', so later on in your
			Apache config file you would map `weburl' to
			`prefix/var/www' (see below).

			--with-sweburl=https://webserver.domain.com

			The URL denoting the HTTPS-secure equivalent of the
			home URL. The secure home URL will be used for
			personalization pages, such as user login and
			registration page. You must run SSL-enabled Apache
			in order to use this feature. If you don't run
			SSL-enabled Apache, then the user authentication will
			be done via standard HTTP protocol, user credentials
			travelling in clear text across the net. The
			--with-sweburl option is optional.

			--with-dbhost=sqlserver.domain.com
			--with-dbname=cdsinvenio
			--with-dbuser=cdsinvenio
			--with-dbpass=myp1ss

			The database server host, the database name, and the
			database user credentials.

			--with-python=/opt/python/bin/python2.3

			Optionally, specify a path to some specific Python
			binary. This is useful if you have more than one
			Python installation on your system. If you don't set
			this option, then the first Python that will be found
			in your PATH will be chosen for running CDS Invenio.

			CDS Invenio won't install to any other directory but to the
			one mentioned in this configuration line.

			Do not use trailing slashes when specifying any of the above
			values.

			This configuration step is mandatory, and is referred to as
			"pre-compile time configuration step a)" in the elucidative
			explanatory commentary below.

			Note that if you prefer to build CDS Invenio out of its
			source tree, you may run the above configure command like
			this:
			$ mkdir build && cd build && ../configure --prefix=...

			$ vi ./config/config.wml ## optional, but strongly recommended

			Optionally, customize your CDS Invenio installation. We
			strongly recommend you to edit at least the top of this file
			where you can define some very essential CDS Invenio
			parameters like the name of your CDS Invenio document server
			(look for CDSNAME and CDSNAMEINTL) or the email address of
			the local CDS Invenio administrator (look for SUPPORTEMAIL
			and ADMINEMAIL). The latter is needed if you want to use
			administration modules, and you will certainly do.

			The rest of the "config.wml" file enables you to change the
			CDS Invenio web page look and feel, and otherwise to influence
			its behaviour and default parameters.

			This configuration step is optional, but strongly
			recommended. It is referred to as "compile time
			configuration step b)" in the elucidative explanatory
			commentary below.

			$ make

			Launch the CDS Invenio build. Since many messages are printed
			during the build process, you may want to run it in a
			fast-scrolling terminal such as rxvt or in a detached screen
			session.

			During this step all the pages and scripts will be
			pre-created and customized based on the config you have
			edited in the previous step.

			Before proceeding further with the CDS Invenio installation, we
			have to do some admin-level tasks on the MySQL and Apache
			servers.

			$ mysql -h sqlserver.domain.com -u root -p mysql
			mysql> CREATE DATABASE cdsinvenio;
			mysql> GRANT ALL PRIVILEGES ON cdsinvenio.* TO cdsinvenio@webserver.domain.com IDENTIFIED BY 'myp1ss';

			You need to create a dedicated database on your MySQL server
			that the CDS Invenio can use for its purposes. Please
			contact your MySQL administrator and ask him to execute the
			above commands that will create the "cdsinvenio" database, a
			user called "cdsinvenio" with password "myp1ss", and that
			will grant all rights on the "cdsinvenio" database to the
			"cdsinvenio" user. The credential values are the ones you
			have chosen in the configure line above.

			$ sudo vi /path/to/apache/conf/httpd.conf ## see below in part 2

			Please ask your webserver administrator to put the following
			lines in your "httpd.conf" configuration file:

			AddDefaultCharset UTF-8
			AddType application/x-httpd-php .php
			AddType application/x-httpd-php-source .phps

			This is to ensure that the browsers will get UTF-8 as the
			default page encoding, and that "*.php" files will be
			interpreted by the web server as PHP files.

			As mentioned above, the web pages will get installed into
			the `prefix/var/www' directory. Therefore you should
			specify something along the lines of:

			ServerSignature Off
			ServerTokens Prod
			NameVirtualHost *
			<VirtualHost *>
			ServerName webserver.domain.com
			ServerAdmin cds.support@cern.ch
			DocumentRoot /opt/cds-invenio/var/www
			<Directory /opt/cds-invenio/var/www>
			Options Indexes FollowSymLinks MultiViews
			AllowOverride None
			Order allow,deny
			allow from all
			</Directory>
			ErrorLog /opt/cds-invenio/var/log/apache.err
			LogLevel warn
			CustomLog /opt/cds-invenio/var/log/apache.log combined
			DirectoryIndex index.en.html index.html index.en.php index.php
			<LocationMatch "^(/$\|/index\|/collection\|/record\|/search\|/browse\|/youraccount\|/youralerts\|/yourbaskets\|/yourmessages\|/yourgroups\|/submit\|/getfile\|/comments\|/error\|/oai2d)">
			SetHandler python-program
			PythonHandler invenio.webinterface_layout
			PythonDebug On
			</LocationMatch>
			<Directory /opt/cds-invenio/var/www>
			AddHandler python-program .py
			PythonHandler mod_python.publisher
			PythonDebug On
			</Directory>
			</VirtualHost>

			This will tell Apache where to find the files, how to
			interpret .py files, which files to serve as indexes, etc.

			If you have configured the system to use secure URL for
			login (see above), then you have to specify secure site too,
			such as:

			ServerSignature Off
			ServerTokens Prod
			NameVirtualHost *:443
			SSLCertificateFile /etc/apache2/ssl/apache.pem
			<VirtualHost *:443>
			ServerName webserver.domain.com
			ServerAdmin cds.support@cern.ch
			SSLEngine on
			DocumentRoot /opt/cds-invenio/var/www
			<Directory /opt/cds-invenio/var/www>
			Options Indexes FollowSymLinks MultiViews
			AllowOverride None
			Order allow,deny
			allow from all
			</Directory>
			ErrorLog /opt/cds-invenio/var/log/apache-ssl.err
			LogLevel warn
			CustomLog /opt/cds-invenio/var/log/apache-ssl.log combined
			DirectoryIndex index.en.html index.html index.en.php index.php
			<LocationMatch "^(/$\|/index\|/collection\|/record\|/search\|/browse\|/youraccount\|/youralerts\|/yourbaskets\|/yourmessages\|/yourgroups\|/submit\|/getfile\|/comments\|/error\|/oai2d)">
			SetHandler python-program
			PythonHandler invenio.webinterface_layout
			PythonDebug On
			</LocationMatch>
			<Directory /opt/cds-invenio/var/www>
			AddHandler python-program .py
			PythonHandler mod_python.publisher
			PythonDebug On
			</Directory>
			</VirtualHost>

			$ sudo vi /path/to/php/conf/php.ini ## see below in part 2

			Please ask your webserver administrator to put the following
			lines in your "php.ini" configuration file:

			log_errors = on
			display_errors = off
			expose_php = off
			max_execution_time = 160
			register_globals = on
			short_open_tag = on

			This will set up some relevant PHP variables.

			If your OS uses dynamic loading PHP MySQL libraries, such as
			Debian "Sarge" GNU/Linux, you will also have to specify:

			extension=mysql.so

			in both /etc/php4/{cli,apache2}/php.ini files.

			$ sudo /path/to/apache/bin/apachectl graceful

			Please ask your webserver administrator to restart the
			Apache server after the above "httpd.conf" and "php.ini"
			changes.

			After these admin-level tasks to be performed as root, let's
			now go back to finish the installation of the CDS Invenio
			package.

			$ make create-tables ## optional

			If you are installing for the first time, you have to create
			CDS Invenio tables in the database.

			Note that the `make install' process will warn you in case
			the tables were not created and will ask you to run this
			step manually before completing the make install process.

			$ sudo ln -s /opt/cds-invenio/lib/python/invenio \
			/usr/local/lib/python2.3/site-packages/invenio \
			## optional

			If you are installing for the first time, you will have to
			create a symbolic link from Python's site-packages directory
			that would indicate to Python where to find CDS Invenio's
			Python files.

			Note that the exact symlink target location depends on the
			--prefix location (prefix/lib/python/invenio) and the exact
			symlink source location depends on the Python version you
			are using. (See also --with-python configuration option.)

			Note that the `make install' process will warn you in case
			the symbolic link was not created and it will indicate you
			the command to use to create it manually before completing
			the make install process.

			$ make install

			Install the web pages, scripts, utilities and everything
			needed for runtime into the respective directories, as
			specified earlier by the configure command.

			After this step, you should be able to point your browser to
			the chosen URL of your local CDS Invenio installation and see it
			running!

			$ make test

			Optionally, you can run the unit test suite to verify the
			unit behaviour of your local CDS Invenio installation. Note
			that this command should be run only after you have
			installed the whole system via `make install'.

			$ sudo chown -R www-data /opt/cds-invenio/var

			One more superuser step, as we need to enable Apache server
			to write some log information and to cache interesting
			entities inside the "var" subdirectory of our CDS Invenio
			general installation directory.

			Here we assume that your Apache server processes are run
			under "www-data" group. Change this appropriately for your
			system.

			$ make create-demo-site ## optional

			This step is recommended to test your local CDS Invenio
			installation. It should give you our "Atlantis Institute of
			Science" demo installation, exactly as you see it at
			<http://cdsware.cern.ch/DEMO/>.

			$ make load-demo-records ## optional

			Optionally, load some demo records to be able to test
			indexing and searching of your local demo CDS Invenio
			installation.

			$ make regression-test ## optional

			Optionally, you can run the full regression test suite to
			verify the functional behaviour of your local CDS Invenio
			installation. Note that this command requires to have
			created the demo site and loaded the demo records. Note
			also that running the regression test suite may alter the
			database content with junk data, so that rebuilding the
			demo site is stongly recommended afterwards.

			$ make remove-demo-records ## optional

			Optionally, remove the demo records loaded in the previous
			step but otherwise keep the demo collection, submit, format
			etc configurations that you may reuse and modify for
			production purposes.

			$ make drop-demo-site ## optional

			Optionally, drop also all the demo configuration so that
			you'll have a blank CDS Invenio system for your production
			purposes.

			$ firefox http://webserver.domain.com/admin/ ## optional

			Optionally, do further runtime configuration of the CDS Invenio,
			like definition of data collections, document types,
			document formats, word file tables, etc.

			This configuration step is optional, and is referred to as
			"runtime configuration step c)" in the elucidative
			explanatory commentary below.

			3. Configuration philosophy explained and elucidated
			====================================================

			As you could see from the above, the configuration of the CDS Invenio is
			threefold:

			(a) pre-compile time configuration phase
			[uses command line options / while doing "configure"]
			(b) compile time configuration phase
			[uses WML / after "configure", while doing "make && make install"]
			(c) runtime configuration phase
			[uses MySQL / after "make install", while doing "netscape http://webserver.domain.com/DEMO/admin/"]

			What is the difference, and why?

			(a) pre-compile time configuration phase
			[uses command line options / while doing "configure"]

			This configures essential CDS Invenio parameters that makes your
			CDS Invenio copy installable and runable. The essential parameters
			include: general CDS Invenio installation directory containing
			(among others) binaries, libraries, and log and cache
			directories; install directory for Web scripts and pages;
			and MySQL user and server credentials.

			This configuration step uses standard GNU autoconf approach,
			i.e. you will run the standard "configure" script. Note
			that the only arguments that CDS Invenio takes into consideration
			are the general "--prefix" one and CDS Invenio-specific
			"--with-foo" arguments, see the end of "configure --help"
			output.

			This configuration step is mandatory. Without knowing
			theses essential parameters there is nothing to install and
			nothing to run.

			Usually, you do this step only once.

			(b) compile time configuration phase
			[uses WML / after "configure", while doing "make && make install"]

			Optionally, you may choose to influence CDS Invenio behaviour, to
			set up CDS Invenio system name, to choose its default parameters,
			to change its look and feel, to add your local web pages, etc.

			This configuration step uses WML, the Website META Language.
			The most important configuration file is "config/config.wml"
			that you can edit at your will. Optionally, if you are an
			advanced user, you may edit other WML files in the
			distribution tree.

			After that, when you type "make", the CDS Invenio pages will be
			pre-generated. We prefer that this configuration step is
			done during compile-time and not runtime, because of
			multiple reasons: (i) the pre-generated pages impose less
			load on the web server and the database server and so they
			are served faster to the end user; (ii) we use several
			different languages (Python, PHP) and by using independent
			compile-time configuration language we can share the same
			configuration variables across heterogeneous languages;
			(iii) use of WML and page templates enables you to easily
			change anything in the CDS Invenio system, even into deep
			levels.

			If you are changing parameters and/or look and feel
			of CDS Invenio pages, you may want to repeat these step several
			times:

			$ vi config/config.wml
			$ make drop-tables
			$ make create-tables
			$ make create-demo-site
			$ make load-demo-records
			$ firefox http://webserver.domain.com/
			[...]

			to see what it brings, until you are satisfied with the
			result.

			(Note that you may as well choose to change these parameters
			inside the CDS Invenio library configuration files later on,
			during runtime, at least for non-static Python and PHP
			pages.)

			(c) runtime configuration phase
			[uses MySQL / after "make install", while doing "firefox http://webserver.domain.com/admin/"]

			Optionally, you will most probably want to define specific
			data collections, to configure submit and search page for those
			collections, to specify search options and word files to
			search in, formats how to display data, etc.

			This configuration step uses MySQL configuration tables and
			is done during the runtime, for your convenience. It means
			that after previous configuration step (b), and after
			successful "make install", if you are happy with its result
			you no longer edit WML files within the CDS Invenio source tree but
			rather configure "fully running" CDS Invenio installation via
			its Administration web interface.

			Usually, you will do this step many times in the future, to
			tweak the running installation, to add new collections and
			data types, etc.

			(Note that if you want to change something "deeper" in a
			running CDS Invenio installation, such as look and feel of pages,
			or to add some new pages, then you may want to edit library
			configuration files for Python and PHP non-static pages, as
			noted above. But if you want to do really "deep" changes,
			you need to go back to WML source, so you may want to leave
			your customized copy of the CDS Invenio WML source tree around.)

			We hope that this explains why we have chosen this three-level
			configuration model, and that you will find it convenient in real
			life.

			Good luck, and thanks for choosing CDS Invenio.

			- CDS Development Group
			<cds.support@cern.ch>
			<http://cdsware.cern.ch/>

R3600/INSTALL2a0e134a8978maint-2.0

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R3600/INSTALL
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