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makecat - Build an Interchange catalog from a template


makecat [--options] name


# $Id: makecat.PL,v 2.28 2008-05-21 03:05:20 jon Exp $


The makecat program builds a Interchange catalog from a template based on your server
configuration. It interrogates for parameters like the directories to use, URL to base
the catalog in, HTTP server definitions, and file ownership. It is self-documenting in
that it asks verbose questions and gives relevant examples.

On UNIX, if you want to check on something during the process you can usually hit <CTRL-Z>
to suspend the program and do something and then type "fg" to return to <makecat>. Also,
if your input begins with an exclamation mark ("!"), it will be interpreted as a shell
command. An exclamation mark ("!") alone should drop you into a shell.

If you have the "Term::ReadLine::Perl" and "Term::ReadKey" modules installed, the <UP> and
<DOWN> arrows will cycle between suggested defaults; and the following features will be in

TAB Completes file name
<UP> Cycle suggestion up
<DOWN> Cycle suggestion down
<CTRL-P> Cycle suggestion up
<CTRL-N> Cycle suggestion down
<CTRL-B> Go back one question (if possible)
<CTRL-U> Erase line
<LEFT> Command-line editing left
<RIGHT> Command-line editing left

Also, if you make a mistake at some stage of the interrogation, you can often hit the
<CTRL-B> key to return to the previous query. If you don't have Term::ReadLine installed,
then you can enter an at sign ("@") by itself on the line.


usage: makecat [options] [catalogname]

The makecat program can build a catalog based completely on a command line description. An
example is in eg/makecat.sh.

There are just a few flag-based options:

Force make of catalog with defaults supplied on command line.

Configuration file -- default is makecat.cfg in Interchange Confdir (etc) directory.

File to log to (default makecat.log)

Reconfigure defaults normally set in makecat.cfg; this is done automatically the first
time the program is run.

The remainder of the options are supplied on the command line as named parameters followed
by an "=" sign, followed by the value, i.e.


Normally, if "makecat" supplies a default you might guess at that. It is fairly
intelligent if you have an Apache server and it has found the httpd.conf file. If you are
on a Netscape or other web server, it is less likely to be right.

The options set at reconfig time, i.e. the first time the program is run:

Base directory for catalogs. This defaults to "catalogs" in the home directory of the
catalog user.

Base URL for link programs. This is normally either blank (your programs are made with
.cgi extension) or "/cgi-bin" (you have a CGI directory).

The directory where HTML is based. This is the root directory of the web server, i.e.

The default group files should be owned by.

The user ID which runs Interchange.

Location of httpd.conf; you will be queried otherwise.

Location of Interchange software.

Use instead of \$HOME to set defaults

These are options which are required to be set for any catalog; the default will often be
correct if you have set the above options correctly.

Directory where Interchange catalog files go. This is the base directory for this

The directory the CGI link should go to. This is the CGI directory; if your CGI
programs all end in ".cgi" then this would normally be the same as "documentroot"; if
you have a "cgi bin" directory it should be used.

Name of server (www.whatever.domain). You can supply a port:


or a username:


For testing on your local machine, just use "localhost".

The path to the CGI link (no server name). For a catalog named "standard", this would
normally be one of:




The template catalog. The default is <standard>.

Email address to send orders

The user files should be owned by (option only operative if "root").

The rest of the parameters need not be supplied on the command line as intelligent
defaults can be derived from the above parameters.

The directory where template HTML goes.

The directory where template images go.

The URL to prefix images with.

The directory where shared admin images go.

The URL to prefix shared admin images with.

Don't add to interchange.cfg.

Don't actually copy the files, just test.

Don't add to running server.

Return hash of config as string (sets "-F", no write). This is for passing back to the
makecat program in a autobuild environment.

Use file as link program instead of vlink/tlink.

UNIX or INET (link program vlink or tlink).

URL to access HTML for catalog.

Don't set umask to the value implied by mode.

Use file as configuration file for catalog definitions. This option has been designed
for the use with Debian installations.


"makecat" needs a template catalog to operate on. The Foundation Store demo template is
distributed with Interchange. You can also look for additional demo catalogs (mostly for
ideas) at http://www.icdevgroup.org/

IMPORTANT NOTE: You only make a catalog once. All further configuration is done by editing
the files within the catalog directory.

A catalog template contains an image of a configured catalog. The best way to see what the
makecat program does is to configure the 'standard' demo and then run a recursive "diff"
on the template and configured catalog directories:

diff -r interchange/standard catalogs/standard

You will see that the files are mostly the same, except that certain macro strings have
been replaced with the answers you gave to the script. For example, if you answered
"www.mydomain.com" at the prompt for server name, then you would see this difference in
the catalog.cfg file:

# template

# configured catalog
Variable SERVER_NAME www.mydomain.com

The macro string __MVC_SERVERNAME__ was substituted with the answer to the question about
server name. In the same way, other variables are substituted, and include (at least):


(Not all of these are present in the standard template, and quite a few more may be
defined.) In fact, any environment variable that is set and begins with MVC_ will be
substituted for by the "makecat" script. So if you wanted to set up a configurable
parameter to customize the COMPANY variable in catalog.cfg, you could run a pre-qualifying
script that set the environment variable MVC_COMPANY and then place in the catalog.cfg


All files within a template directory are substituted for macros, not just the catalog.cfg
file. There are two special directories named "html" and "images". These will be
recursively copied to the directories defined as SampleHTML and ImageDir.

IMPORTANT NOTE: The template directory is located in the Interchange software directory,
i.e. where "interchange.cfg" resides. You normally do not edit files in the template
directory. If you want to try creating your own template, it is recommended that you name
it something besides standard and copy the "standard" demo directory to it as a starting
point. Templates are normally placed in the Interchange base directory, but can be
located anywhere -- the script will prompt you for location if it cannot find a template.

In addition to the standard parameters prompted for by Interchange, and the standard
catalog creation procedure, you may define four other files in the "config" directory of
the template:

additional_fields -- file with more parameters for macro substitution
additional_help -- extended description for the additional_fields
precopy_commands -- commands passed to the system prior to catalog copy
postcopy_commands -- commands passed to the system after catalog copy

All files are paragraph-based; in other words, a blank line (with no spaces) terminates
the individual setting.

The additional_fields file contains:

The prompt. Set PARAM to?
The default value of PARAM

This would cause a question during makecat:

The prompt. Set PARAM to?.....[The default value of PARAM]

If the additional_help file is present, you can give additional instructions for PARAM.

These are additional instructions for PARAM, and they
may span multiple lines up to the first blank line.

The prompt would now be:

These are additional instructions for PARAM, and they
may span multiple lines up to the first blank line.

The prompt. Set PARAM to?.....[The default value of PARAM]

If the file config/precopy_commands exists, it will be read as a command followed by the
prompt/help value.

mysqladmin create __MVC_CATALOGNAME__
We need to create an SQL database for your Interchange
database tables.

This will cause the prompt:

We need to create an SQL database for your Interchange
database tables.

Run command "mysqladmin create test_standard"?

If the response is "y" or "yes", then the command will be run by passing it through the
Perl system() function. As with any of the additional configuration files, MVC_PARAM macro
substitution is done on the command and help. Obviously you must have proper permissions
for the command.

The file config/postcopy_commands is exactly the same as precopy_commands except you are
prompted after the catalog files are copied and macro substitution is performed on all


Interchange has many, many, functions and features; they are too numerous to describe in
this venue. Complete information can be found at its web site:


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