@subsection Goals

The @file{trunk/Scripts/Bash/Config} directory exists to oraganize

pre-rendering configuration scripts.

@subsection Description

Pre-rendering configuration scripts let you customize the way

@command{centos-art.sh} script renders identity and translation

repository entries.  Pre-rendering configuration scripts are

@file{render.conf.sh} files with @command{render_loadConfig} function

definition inside. 

There is one @file{render.conf.sh} file for each pre-rendering

configuration entry. Pre-rendering configuration entries can be based

both on identity and translation repository entires.  Pre-rendering

configuration entries are required for each identity entry, but not

for translation entries. 

@subsubsection The @file{render.conf.sh} identity model

Inside CentOS Artwork Repository, we consider identity entries to all

directories under @file{trunk/Identity} directory. Identity entries can be

image-based or text-based. When you render image-based identity

entries you need to use image-based pre-rendering configuration

scripts. Likewise, when you render text-based identity entries you

need to use text-based pre-rendering configuration scripts.

Inside identity pre-rendering configuration scripts, image-based

pre-rendering configuration scripts look like the following:

@verbatim

#!/bin/bash

function render_loadConfig {

    # Define rendering actions.

    ACTIONS[0]='BASE:renderImage'

    ACTIONS[1]='POST:renderFormats: tif xpm pdf ppm'

}

@end verbatim

Inside identity pre-rendering configuration scripts, text-based

pre-rendering configuration scripts look like the following:

@verbatim

#!/bin/bash

function render_loadConfig {

    # Define rendering actions.

    ACTIONS[0]='BASE:renderText'

    ACTIONS[1]='POST:formatText: --width=70 --uniform-spacing'

}

@end verbatim

When using identity pre-rendering configuration scripts, you can

extend both image-based and text-based pre-rendering configuration

scripts using image-based and text-based post-rendering actions,

respectively. 

@subsubsection The @file{render.conf.sh} translation model

Translation pre-rendering configuration scripts take precedence before

default translation rendering action. Translation pre-rendering

actions are useful when default translation rendering action do not

fit itself to translation entry rendering requirements.

@subsubsection The @file{render.conf.sh} rendering actions

Inside both image-based and text-based identity pre-rendering

configuration scripts, we use the @samp{ACTIONS} array variable to

define the way @command{centos-art.sh} script performs identity

rendering.  Identity rendering is organized by one @samp{BASE} action,

and optional @samp{POST} and @samp{LAST} rendering actions.

The @samp{BASE} action specifies what kind of rendering does the

@command{centos-art.sh} script will perform with the files related to

the pre-rendering configuration script. The @samp{BASE} action is

required. Possible values to @samp{BASE} action are either

@samp{renderImage} or @samp{renderText} only.

To specify the @samp{BASE} action you need to set the @samp{BASE:}

string followed by one of the possible values. For example, if you

want to render images, consider the following definition of

@samp{BASE} action:

@verbatim

ACTIONS[0]='BASE:renderImage'

@end verbatim

Only one @samp{BASE} action must be specified. If more than one

@samp{BASE} action is specified, the last one is used. If no

@samp{BASE} action is specified at all, an error is triggered and the

@command{centos-art.sh} script ends its execution.

The @samp{POST} action specifies which action to apply for

each file rendered (at the rendering time). This action is optional.

You can set many different @samp{POST} actions to apply many different

actions over the same already rendered file. Possible values to

@samp{POST} action are @samp{renderFormats}, @samp{renderSyslinux},

@samp{renderGrub}, etc. 

To specify the @samp{POST} action, you need to use set the

@samp{POST:} followed by the function name of the action you want to

perform.  The exact form depends on your needs. For example, consider

the following example to produce @samp{xpm}, @samp{jpg}, and

@samp{tif} images, based on already rendered @samp{png} image, and

also organize the produced files in directories named as their own

extensions:

@verbatim

ACTIONS[0]='BASE:renderImage'

ACTIONS[1]='POST:renderFormats: xpm jpg tif'

ACTIONS[2]='POST:groupByFormat: png xpm jpg tif'

@end verbatim

In the previous example, file organization takes place at the moment

of rendering, just after producing the @samp{png} base file and before

going to the next file in the list of files to render. If you don't

want to organized the produced files in directories named as their own

extensions, just remove the @samp{POST:groupByFormat} action line:

@verbatim

ACTIONS[0]='BASE:renderImage'

ACTIONS[1]='POST:renderFormats: xpm jpg tif'

@end verbatim

The @samp{LAST} action specifies which actions to apply once the last

file in the list of files to process has been rendered. The

@samp{LAST} action is optional. Possible values for @samp{LAST}

actions may be @samp{groupByFormat}, @samp{renderGdmTgz}, etc.

@quotation

@strong{Note} --- @strong{Removed}(xref:trunk Scripts Bash Functions Render) ---, to know more

about possible values for @samp{BASE}, @samp{POST} and @samp{LAST}

action definitions.

@end quotation

To specify the @samp{LAST} action, you need to set the @samp{LAST:}

string followed by the function name of the action you want to

perform.  For example, consider the following example if you want to

render all files first and organize them later:

@verbatim

ACTIONS[0]='BASE:renderImage'

ACTIONS[1]='POST:renderFormats: xpm jpg tif'

ACTIONS[2]='LAST:groupByformat: png xpm jpg tif'

@end verbatim

@subsection Usage

Use the following commands to administer both identity and translation

pre-rendering configuration scripts:

@table @samp

@item centos-art config --create='path/to/dir/'

Use this command to create @samp{path/to/dir} related pre-rendering

configuration script.

@item centos-art config --edit='path/to/dir/'

Use this command to edit @samp{path/to/dir} related pre-rendering

configuration script.  

@item centos-art config --read='path/to/dir/'

Use this command to read @samp{path/to/dir} related pre-rendering

configuration script.  

@item centos-art config --remove='path/to/dir/'

Use this command to remove @samp{path/to/dir} related pre-rendering

configuration script.

@end table

In the commands above, @samp{path/to/dir} refers to one renderable

directory path under @file{trunk/Identity} or

@file{trunk/Translations} structures only. 

@subsection See also

@menu

* Directories trunk Scripts::

* Directories trunk Scripts Functions::

* Directories trunk Scripts Functions Render::

@end menu