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Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
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Karl Berry <karl@freefriends.org>
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and many others.
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<title>CentOS Artwork Repository: 3.54 trunk/Scripts/Bash/Functions/Render/Config</title>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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[Top]
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[Contents]
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[Index]
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[ ? ]
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3.54 trunk/Scripts/Bash/Functions/Render/Config
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3.54.1 Goals
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The <tt>`trunk/Scripts/Bash/Config'</tt> directory exists to oraganize
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pre-rendering configuration scripts.
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3.54.2 Description
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Pre-rendering configuration scripts let you customize the way
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centos-art.sh script renders identity and translation
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repository entries. Pre-rendering configuration scripts are
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<tt>`render.conf.sh'</tt> files with render_loadConfig function
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definition inside.
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There is one <tt>`render.conf.sh'</tt> file for each pre-rendering
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configuration entry. Pre-rendering configuration entries can be based
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both on identity and translation repository entires. Pre-rendering
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configuration entries are required for each identity entry, but not
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for translation entries.
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3.54.2.1 The <tt>`render.conf.sh'</tt> identity model
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Inside CentOS Artwork Repository, we consider identity entries to all
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directories under <tt>`trunk/Identity'</tt> directory. Identity entries can be
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image-based or text-based. When you render image-based identity
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entries you need to use image-based pre-rendering configuration
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scripts. Likewise, when you render text-based identity entries you
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need to use text-based pre-rendering configuration scripts.
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Inside identity pre-rendering configuration scripts, image-based
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pre-rendering configuration scripts look like the following:
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#!/bin/bash
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function render_loadConfig {
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# Define rendering actions.
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ACTIONS[0]='BASE:renderImage'
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ACTIONS[1]='POST:renderFormats: tif xpm pdf ppm'
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}
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Inside identity pre-rendering configuration scripts, text-based
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pre-rendering configuration scripts look like the following:
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#!/bin/bash
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function render_loadConfig {
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# Define rendering actions.
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ACTIONS[0]='BASE:renderText'
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ACTIONS[1]='POST:formatText: --width=70 --uniform-spacing'
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}
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When using identity pre-rendering configuration scripts, you can
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extend both image-based and text-based pre-rendering configuration
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scripts using image-based and text-based post-rendering actions,
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respectively.
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3.54.2.2 The <tt>`render.conf.sh'</tt> translation model
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Translation pre-rendering configuration scripts take precedence before
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default translation rendering action. Translation pre-rendering
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actions are useful when default translation rendering action do not
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fit itself to translation entry rendering requirements.
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3.54.2.3 The <tt>`render.conf.sh'</tt> rendering actions
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Inside both image-based and text-based identity pre-rendering
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configuration scripts, we use the <samp>`ACTIONS'</samp> array variable to
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define the way centos-art.sh script performs identity
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rendering. Identity rendering is organized by one <samp>`BASE'</samp> action,
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and optional <samp>`POST'</samp> and <samp>`LAST'</samp> rendering actions.
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The <samp>`BASE'</samp> action specifies what kind of rendering does the
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centos-art.sh script will perform with the files related to
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the pre-rendering configuration script. The <samp>`BASE'</samp> action is
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required. Possible values to <samp>`BASE'</samp> action are either
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<samp>`renderImage'</samp> or <samp>`renderText'</samp> only.
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To specify the <samp>`BASE'</samp> action you need to set the <samp>`BASE:'</samp>
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string followed by one of the possible values. For example, if you
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want to render images, consider the following definition of
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<samp>`BASE'</samp> action:
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ACTIONS[0]='BASE:renderImage'
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Only one <samp>`BASE'</samp> action must be specified. If more than one
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<samp>`BASE'</samp> action is specified, the last one is used. If no
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<samp>`BASE'</samp> action is specified at all, an error is triggered and the
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centos-art.sh script ends its execution.
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The <samp>`POST'</samp> action specifies which action to apply for
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each file rendered (at the rendering time). This action is optional.
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You can set many different <samp>`POST'</samp> actions to apply many different
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actions over the same already rendered file. Possible values to
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<samp>`POST'</samp> action are <samp>`renderFormats'</samp>, <samp>`renderSyslinux'</samp>,
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<samp>`renderGrub'</samp>, etc.
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To specify the <samp>`POST'</samp> action, you need to use set the
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<samp>`POST:'</samp> followed by the function name of the action you want to
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perform. The exact form depends on your needs. For example, consider
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the following example to produce <samp>`xpm'</samp>, <samp>`jpg'</samp>, and
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<samp>`tif'</samp> images, based on already rendered <samp>`png'</samp> image, and
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also organize the produced files in directories named as their own
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extensions:
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ACTIONS[0]='BASE:renderImage'
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ACTIONS[1]='POST:renderFormats: xpm jpg tif'
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ACTIONS[2]='POST:groupByFormat: png xpm jpg tif'
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In the previous example, file organization takes place at the moment
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of rendering, just after producing the <samp>`png'</samp> base file and before
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going to the next file in the list of files to render. If you don't
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want to organized the produced files in directories named as their own
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extensions, just remove the <samp>`POST:groupByFormat'</samp> action line:
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ACTIONS[0]='BASE:renderImage'
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ACTIONS[1]='POST:renderFormats: xpm jpg tif'
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The <samp>`LAST'</samp> action specifies which actions to apply once the last
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file in the list of files to process has been rendered. The
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<samp>`LAST'</samp> action is optional. Possible values for <samp>`LAST'</samp>
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actions may be <samp>`groupByFormat'</samp>, <samp>`renderGdmTgz'</samp>, etc.
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 Note See section trunk/Scripts/Bash/Functions/Render, to know more
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about possible values for <samp>`BASE'</samp>, <samp>`POST'</samp> and <samp>`LAST'</samp>
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action definitions.
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To specify the <samp>`LAST'</samp> action, you need to set the <samp>`LAST:'</samp>
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string followed by the function name of the action you want to
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perform. For example, consider the following example if you want to
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render all files first and organize them later:
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ACTIONS[0]='BASE:renderImage'
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ACTIONS[1]='POST:renderFormats: xpm jpg tif'
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ACTIONS[2]='LAST:groupByformat: png xpm jpg tif'
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3.54.3 Usage
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Use the following commands to administer both identity and translation
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pre-rendering configuration scripts:
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<samp>`centos-art config --create='path/to/dir/''</samp>
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Use this command to create <samp>`path/to/dir'</samp> related pre-rendering
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configuration script.
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<samp>`centos-art config --edit='path/to/dir/''</samp>
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Use this command to edit <samp>`path/to/dir'</samp> related pre-rendering
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configuration script.
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<samp>`centos-art config --read='path/to/dir/''</samp>
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Use this command to read <samp>`path/to/dir'</samp> related pre-rendering
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configuration script.
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<samp>`centos-art config --remove='path/to/dir/''</samp>
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Use this command to remove <samp>`path/to/dir'</samp> related pre-rendering
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configuration script.
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In the commands above, <samp>`path/to/dir'</samp> refers to one renderable
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directory path under <tt>`trunk/Identity'</tt> or
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<tt>`trunk/Translations'</tt> structures only.
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3.54.4 See also
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3.47 trunk/Scripts/Bash
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3.48 trunk/Scripts/Bash/Functions
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3.53 trunk/Scripts/Bash/Functions/Render
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[ < ]
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[ > ]
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<font size="-1">
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This document was generated on February, 26 2011 using texi2html 1.76.
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</font>
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</body>
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</html>
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