Blame Manuals/en/Html/Repository/repository_40.html

4c79b5
4c79b5
<html>
09d4f2
09d4f2
09d4f2
The CentOS Artwork Repository exists to organize and automate The
09d4f2
CentOS Project corporate visual identity (, to
09d4f2
start on).
4c79b5
6c4982
Copyright C 2009, 2010 Alain Reguera Delgado. All rights
4c79b5
reserved.
4c79b5
4c79b5
Permission is granted to copy, distribute and/or modify this document
4c79b5
under the terms of the GNU Free Documentation License, Version 1.2 or
4c79b5
any later version published by the Free Software Foundation; with no
4c79b5
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
4c79b5
copy of the license is included in the section entitled GNU Free
4c79b5
Documentation License.  
4c79b5
-->
de1f5e
4c79b5
4c79b5
Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
4c79b5
            Karl Berry  <karl@freefriends.org>
4c79b5
            Olaf Bachmann <obachman@mathematik.uni-kl.de>
4c79b5
            and many others.
4c79b5
Maintained by: Many creative people <dev@texi2html.cvshome.org>
4c79b5
Send bugs and suggestions to <users@texi2html.cvshome.org>
4c79b5
4c79b5
-->
4c79b5
<head>
63f275
<title>CentOS Artwork Repository: 3.37 trunk/Scripts/Bash/Functions</title>
4c79b5
63f275
<meta name="description" content="CentOS Artwork Repository: 3.37 trunk/Scripts/Bash/Functions">
63f275
<meta name="keywords" content="CentOS Artwork Repository: 3.37 trunk/Scripts/Bash/Functions">
4c79b5
<meta name="resource-type" content="document">
4c79b5
<meta name="distribution" content="global">
4c79b5
<meta name="Generator" content="texi2html 1.76">
4c79b5
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
4c79b5
<style type="text/css">
4c79b5
1e9202
@import "/home/centos/artwork/trunk/Identity/Models/Css/Texi2html/common.css";
4c79b5
4c79b5
a.summary-letter {text-decoration: none}
4c79b5
pre.display {font-family: serif}
4c79b5
pre.format {font-family: serif}
4c79b5
pre.menu-comment {font-family: serif}
4c79b5
pre.menu-preformatted {font-family: serif}
4c79b5
pre.smalldisplay {font-family: serif; font-size: smaller}
4c79b5
pre.smallexample {font-size: smaller}
4c79b5
pre.smallformat {font-family: serif; font-size: smaller}
4c79b5
pre.smalllisp {font-size: smaller}
4c79b5
span.sansserif {font-family:sans-serif; font-weight:normal;}
4c79b5
ul.toc {list-style: none}
4c79b5
-->
4c79b5
</style>
4c79b5
4c79b5
4c79b5
</head>
4c79b5
4c79b5
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
4c79b5
4c79b5
008ee0
[ < ]
008ee0
[ > ]
4c79b5
   
4c79b5
[ << ]
4c79b5
[ Up ]
749e81
[ >> ]
4c79b5
   
4c79b5
   
4c79b5
   
4c79b5
   
4c79b5
[Top]
4c79b5
[Contents]
749e81
[Index]
4c79b5
[ ? ]
4c79b5
63f275
008ee0
63f275

3.37 trunk/Scripts/Bash/Functions

4c79b5
4c79b5
008ee0
6ba043

3.37.1 Goals

6ba043
63f275

The <tt>`trunk/Scripts/Bash/Functions'</tt> directory exists to organize

63f275
<tt>`centos-art.sh'</tt> specific functionalities.
54b5a5

6ba043
008ee0
6ba043

3.37.2 Description

6ba043
63f275

The specific functions of <tt>`centos-art.sh'</tt> script are designed

63f275
with "Software Toolbox" philosophy (see (coreutils.info)Toolbox introduction) in mind: each program "should do one
63f275
thing well".  Inside <tt>`centos-art.sh'</tt> script, each specific
63f275
functionality is considered a program that should do one thing well.
63f275
Of course, if you find that they still don't do it, feel free to
63f275
improve them in order for them to do so.
63f275

63f275

The specific functions of <tt>`centos-art.sh'</tt> script are organized

63f275
inside specific directories under <tt>`trunk/Scripts/Bash/Functions'</tt>
63f275
location. Each specific function directory should be named as the
63f275
function it represents, with the first letter in uppercase. For
63f275
example, if the function name is render, the specific function
63f275
directory for it would be <samp>`trunk/Scripts/Bash/Functions/Render'</samp>.
63f275

63f275

To better understand how specific functions of <tt>`centos-art.sh'</tt>

63f275
script are designed, lets create one function which only goal is to
63f275
output different kind of greetings to your screen.
63f275

63f275

When we create specific functions for <tt>`centos-art.sh'</tt> script it

63f275
is crucial to know what these functions will do exactly and if there
63f275
is any function that already does what we intend to do. If there is no
63f275
one, it is good time to create them then. Otherwise, if
63f275
functionalities already available don't do what you exactly expect,
63f275
contact their authors and work together to improve them.
63f275

63f275
Info

Tip

Join CentOS developers mailing list

63f275
centos-art@centos.org to share your ideas.
63f275

63f275
63f275

It is also worth to know what global functions and variables do we

63f275
have available inside <tt>`centos-art.sh'</tt> script, so advantage can be
63f275
taken from them. Global variables are defined inside global function
63f275
scripts. Global functions scripts are stored immediatly under
63f275
<tt>`trunk/Scripts/Bash/Functions'</tt> directory, in files begining with
63f275
<samp>`cli'</samp> prefix.
63f275

63f275

OK, let's begin with our functionality example.

63f275

63f275

What function name do we use? Well, lets use greet. Note that

63f275
<samp>`hello'</samp> word is not a verb; but an expression, a kind of
63f275
greeting, an interjection specifically. In contrast, <samp>`greet'</samp> is a
63f275
verb and describes what we do when we say <samp>`Hello!'</samp>, <samp>`Hi!'</samp>,
63f275
and similar expressions.
63f275

63f275

So far, we've gathered the following function information:

63f275

63f275
Name: greet
63f275
Path: trunk/Scripts/Bash/Functions/Greet
63f275
File: trunk/Scripts/Bash/Functions/Greet/greet.sh
63f275
63f275

The <tt>`greet.sh'</tt> function script is the first file

63f275
<tt>`centos-art.sh'</tt> script loads when the <samp>`greet'</samp> functionality
63f275
is called using commands like <samp>`centos-art greet --hello='World''</samp>.
63f275
The <tt>`greet.sh'</tt> function script contains the greet function
63f275
definition. 
63f275

63f275

Inside <tt>`centos-art.sh'</tt> script, as convenction, each function

63f275
script has one top commentary, followed by one blank line, and then
63f275
one function defintion below it only.
63f275

63f275

Inside <tt>`centos-art.sh'</tt> script functions, top commentaries have

63f275
the following components: the functionality description, one-line for
63f275
copyright note with your personal information,  the license under
63f275
which the function source code is released --the <tt>`centos-art.sh'</tt>
63f275
script is released as GPL, so do all its functions--, subversion's
63f275
$Id$ keyword which is later expanded by svn propset
63f275
command.
63f275

63f275

In our greet function example, top commentary for

63f275
<tt>`greet.sh'</tt> function script would look like the following:
63f275

63f275
#!/bin/bash
63f275
#
63f275
# greet.sh -- This function outputs different kind of greetings to
63f275
# your screen. Use this function to understand how centos-art.sh
63f275
# script specific functionalities work.
63f275
#
63f275
# Copyright (C) YEAR YOURFULLNAME
63f275
#
63f275
# This program is free software; you can redistribute it and/or modify
63f275
# it under the terms of the GNU General Public License as published by
63f275
# the Free Software Foundation; either version 2 of the License, or
63f275
# (at your option) any later version.
63f275
# 
63f275
# This program is distributed in the hope that it will be useful, but
63f275
# WITHOUT ANY WARRANTY; without even the implied warranty of
63f275
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
63f275
# General Public License for more details.
63f275
#
63f275
# You should have received a copy of the GNU General Public License
63f275
# along with this program; if not, write to the Free Software
63f275
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
63f275
# USA.
63f275
# 
63f275
# ----------------------------------------------------------------------
63f275
# $Id$
63f275
# ----------------------------------------------------------------------
63f275
63f275

After top commentary, separated by one blank line, the greet

63f275
function definition would look like the following:
63f275

63f275
function greet {
63f275
63f275
    # Define global variables.
63f275
63f275
    # Define command-line interface.
63f275
    greet_getActions
63f275
63f275
}
63f275
63f275

The first definition inside greet function, are global

63f275
variables that will be available along greet function execution
63f275
environment. This time we didn't use global variable definitions for
63f275
greet function execution environment, so we left that section
63f275
empty.
63f275

63f275

Later, we call greet_getActions function to define the

63f275
command-line interface of greet functionality. The greet
63f275
functionality command-line interface defines what and how actions are
63f275
performed, based on arguments combination passed to
63f275
<tt>`centos-art.sh'</tt> script.
63f275

63f275
function greet_getActions {
63f275
63f275
    case "$ACTIONNAM" in
63f275
63f275
        --hello )
63f275
            greet_doHello
63f275
            ;;
63f275
63f275
        --bye )
63f275
            greet_doBye
63f275
            ;;
63f275
63f275
        * )
63f275
            cli_printMessage "`gettext "The option provided is not valid."`"
63f275
            cli_printMessage "$(caller)" 'AsToKnowMoreLine'
63f275
63f275
    esac
63f275
63f275
}
63f275
63f275

The ACTIONNAM global variable is defined in <tt>`cli.sh'</tt>

63f275
function script and contains the value passed before the equal sign
63f275
(i.e., <samp>`='</samp>) in the second command-line argument of
63f275
<tt>`centos-art.sh'</tt> script. For example, if the second command-line
63f275
argument is <samp>`--hello='World''</samp>, the value of ACTIONNAM
63f275
variable would be <samp>`--hello'</samp>.  Using this configuration let us
63f275
deside which action to perform based on the action name passed to
63f275
<tt>`centos-art.sh'</tt> script as second argument. 
63f275

63f275

The greet function definition makes available two valid

63f275
greetings through <samp>`--hello'</samp> and <samp>`--bye'</samp> options.  If no
63f275
one of them is provided as second command-line argument, the <samp>`*'</samp>
63f275
case is evaluated instead. 
63f275

f7b7e3

The <samp>`*'</samp> case and its two lines further on should always be

f7b7e3
present in <tt>`_getActions.sh'</tt> function scripts, no matter what
f7b7e3
specific functionality you are creating. This convenction helps the
f7b7e3
user to find out documentation about current functionality in use.  
63f275

63f275

The greet_doHello and greet_doBye function definitions

63f275
are the core of greet specific functionality.  In such function
63f275
definitions we set what our greet function really does: to
63f275
output different kinds of greetings.
63f275

63f275
function greet_doHello {
63f275
63f275
    cli_printMessage "`gettext "Hello"` $ACTIONVAL"
63f275
63f275
}
63f275
63f275

The greet_doHello function definition is stored in

63f275
<tt>`greet_doHello.sh'</tt> function script. 
63f275

63f275
function greet_doBye {
63f275
63f275
    cli_printMessage "`gettext "Goodbye"` $ACTIONVAL"
63f275
63f275
}
63f275
63f275

The greet_doBye function definition is stored in the

63f275
<tt>`greet_doBye.sh'</tt> function script. 
63f275

63f275

Both <tt>`greet_doHello.sh'</tt> and <tt>`greet_doBye.sh'</tt> function

63f275
scripts are stored inside greet's function directory path (i.e.
63f275
<tt>`trunk/Scripts/Bash/Functions/Greet'</tt>).
63f275

63f275

The ACTIONVAL global variable is defined in <tt>`cli.sh'</tt>

63f275
function script and contains the value passed after the equal sign
63f275
(i.e., <samp>`='</samp>) in the second command-line argument of
63f275
<tt>`centos-art.sh'</tt> script. For example, if the second command-line
63f275
argument is <samp>`--hello='World''</samp>, the value of ACTIONVAL
63f275
variable would be <samp>`World'</samp> without quotes.
63f275

63f275

Let's see how greet specific functionality files are organzied

63f275
under greet's function directory. To see file organization we
63f275
use the tree command:
63f275

63f275
trunk/Scripts/Bash/Functions/Greet
63f275
|-- greet_doBye.sh
63f275
|-- greet_doHello.sh
63f275
|-- greet_getActions.sh
63f275
`-- greet.sh
63f275
63f275

To try the greet specific functionality we've just created,

63f275
pass the function name (i.e., <samp>`greet'</samp>) as first argument to
63f275
<tt>`centos-art.sh'</tt> script, and any of the valid options as second
63f275
argument. Some examples are illustrated below:
63f275

63f275
[centos@projects ~]$ centos-art greet --hello='World'
63f275
Hello World
63f275
[centos@projects ~]$ centos-art greet --bye='World'
63f275
Goodbye World
63f275
[centos@projects ~]$ 
63f275
63f275

The word <samp>`World'</samp> in the examples above can be anything. In fact,

63f275
change it to have a little fun.
63f275

63f275

Now that we have a specific function that works as we expect, it is

63f275
time to document it. To document greet specific functionality,
831389
we use its directory path and the manual functionality
749e81
(see section trunk/Scripts/Bash/Functions/Manual) of <tt>`centos-art.sh'</tt>
831389
script, just as the following command illustrates: 
63f275

f7b7e3
centos-art manual --edit=trunk/Scripts/Bash/Functions/Greet
63f275
63f275

Now that we have documented our function, it is time to translate its

63f275
output messages to different languages. To translate specific
63f275
functionality output messages to different languages we use the
749e81
locale functionality (see section trunk/Scripts/Bash/Functions/Locale) of <tt>`centos-art.sh'</tt> script, just as the following command
63f275
illustrates:
63f275

63f275
centos-art locale --edit
63f275
63f275
Warning

Warning

To translate output messages in different languages,

63f275
your system locale information --as in LANG environment
63f275
variable-- must be set to that locale you want to produce translated
63f275
messages for. For example, if you want to produce translated messages
63f275
for Spanish language, your system locale information must be set to
63f275
<samp>`es_ES.UTF-8'</samp> or similar.  
63f275

6ba043
63f275

Well, it seems that our example is rather complete by now.

63f275

63f275

In greet function example we've described so far, we only use

63f275
cli_printMessage global function in action specific function
63f275
definitions in order to print a message simply, but more interesting
63f275
things can be achieved inside action specific function definitions.
63f275
For example, if you pass a directory path as second argument option
63f275
value, you could retrive a list of files from therein, and process
63f275
them. If the list of files turns too long or you just want to control
63f275
which files to process, you could add the third argument in the form
63f275
<samp>`--filter='regex''</samp> and reduce the amount of files to process
63f275
using a regular expression pattern.
63f275

63f275

The greet function described in this section may serve you as

63f275
an introduction to understand how specific functionalities work inside
63f275
<tt>`centos-art.sh'</tt> script. With some of luck this introduction will
63f275
also serve you as motivation to create your own <tt>`centos-art.sh'</tt>
63f275
script specific functionalities.
63f275

63f275

By the way, the greet functionality doesn't exist inside

63f275
<tt>`centos-art.sh'</tt> script yet. Would you like to create it?
63f275

6ba043
008ee0
6ba043

3.37.3 Usage

6ba043
63f275
63f275
63f275

3.37.3.1 Global variables

63f275
63f275

The following global variables of <tt>`centos-art.sh'</tt> script, are

63f275
available for you to use inside specific functions:
63f275

63f275
63f275
<u>Variable:</u> TEXTDOMAIN
63f275
63f275
63f275

Default domain used to retrieve translated messages. This value is set

63f275
in <tt>`initFunctions.sh'</tt> and shouldn't be changed.
63f275

63f275
63f275
63f275
<u>Variable:</u> TEXTDOMAINDIR
63f275
63f275
63f275

Default directory used to retrieve translated messages. This value is

63f275
set in <tt>`initFunctions.sh'</tt> and shouldn't be changed.
63f275

63f275
63f275
63f275
<u>Variable:</u> FUNCNAM
63f275
63f275
63f275

Define function name.

63f275

63f275

Function names associate sets of actions. There is one set of actions

63f275
for each unique function name inside <tt>`centos-art.sh'</tt> script.
63f275

63f275

Dunction names are passed as first argument in <tt>`centos-art.sh'</tt>

63f275
command-line interface. For example, in the command <samp>`centos-art
63f275
render --entry=path/to/dir --filter=regex'</samp>, the ACTION passed to
63f275
<tt>`centos-art.sh'</tt> script is <samp>`render'</samp>.
63f275

63f275

When first argument is not provided, the <tt>`centos-art.sh'</tt> script

63f275
immediatly ends its execution.
63f275

63f275
63f275
63f275
<u>Variable:</u> ACTIONNAM
63f275
63f275
63f275

Define action name.

63f275

63f275

Each action name identifies an specific action to perform, inside an

63f275
specific function.
63f275

63f275

Action name names aare passed as second argument in

63f275
<tt>`centos-art.sh'</tt> command-line interface. For example, in the
63f275
command <samp>`centos-art render --entry=path/to/dir --filter=regex'</samp>,
63f275
the ACTIONNAM passed to <tt>`centos-art.sh'</tt> script is
63f275
<samp>`--entry'</samp>.
63f275

63f275

When second argument is not provided, the <tt>`centos-art.sh'</tt> script

63f275
immediatly ends its execution.
63f275

63f275
63f275
63f275
<u>Variable:</u> ACTIONVAL
63f275
63f275
63f275

Define action value.

63f275

63f275

Action values are associated to just one action name. Action values

63f275
contain the repository entry over which its associated action will be
63f275
performed in.  Repository entries can be directories, files, or URLs
63f275
refering the repository structure.
63f275

63f275

When action value is not specified as repository entry, the

63f275
<tt>`centos-art.sh'</tt> script evaluates the current directory it was
63f275
executed from. If such directory is under the repository structure
63f275
(i.e., <tt>`/home/centos/artwork/'</tt>), the <tt>`centos-art.sh'</tt> script
63f275
uses that directory as value to ACTIONVAL variable. Otherwise,
63f275
if outside the repository structure, the <tt>`centos-art.sh'</tt> script
63f275
prints the message <samp>`The path provided can't be processed.'</samp> and,
63f275
after it, immediatly ends script execution.
63f275

63f275

Default action value is passed as second argument in

63f275
<tt>`centos-art.sh'</tt> command-line interface. For example, in the
63f275
command <samp>`centos-art render --entry=path/to/dir --filter=regex'</samp>,
63f275
the ACTIONVAL passed to <tt>`centos-art.sh'</tt> script is
63f275
<samp>`path/to/dir'</samp>.
63f275

63f275
63f275
63f275
<u>Variable:</u> REGEX
63f275
63f275
63f275

Define regular expression used as pattern to build the list of files

63f275
to process.
63f275

63f275

By default, REGEX variable is set to .+ to match all

63f275
files.
63f275

63f275

Functions that need to build a list of files to process use the option

63f275
<samp>`--filter'</samp> to redefine REGEX variable default value, and
63f275
so, control the amount of files to process.
63f275

63f275
63f275
63f275
<u>Variable:</u> ARGUMENTS
63f275
63f275
63f275

Define optional arguments.

63f275

63f275

Optional arguments, inside <tt>`centos-art.sh'</tt> script, are considered

63f275
as all command-line arguments passed to <tt>`centos-art.sh'</tt> script,
63f275
from third argument position on. For example, in the command
63f275
<samp>`centos-art render --entry=path/to/dir --filter=regex'</samp> , the
63f275
optional arguments are from <samp>`--filter=regex'</samp> argument on.
63f275

63f275

Optional arguments are parsed using getopt command through

63f275
the following base construction: 
63f275

63f275
# Define short options we want to support.
63f275
local ARGSS=""
63f275
63f275
# Define long options we want to support.
63f275
local ARGSL="filter:,to:"
63f275
63f275
# Parse arguments using getopt(1) command parser.
63f275
cli_doParseArguments
63f275
63f275
# Reset positional parameters using output from (getopt) argument
63f275
# parser.
63f275
eval set -- "$ARGUMENTS"
63f275
63f275
# Define action to take for each option passed.
63f275
while true; do
63f275
    case "$1" in
63f275
        --filter )
63f275
            REGEX="$2" 
63f275
            shift 2
63f275
            ;;
63f275
        --to )
63f275
            TARGET="$2" 
63f275
            shift 2
63f275
            ;;
63f275
        * )
63f275
            break
63f275
    esac
63f275
done
63f275
63f275

Optional arguments provide support to command options inside

63f275
<tt>`centos-art.sh'</tt> script. For instance, consider the Subversion
63f275
(svn) command, where there are many options (e.g.,
63f275
<samp>`copy'</samp>, <samp>`delete'</samp>, <samp>`move'</samp>, etc), and inside each
63f275
option there are several modifiers (e.g., <samp>`--revision'</samp>,
63f275
<samp>`--message'</samp>, <samp>`--username'</samp>, etc.) that can be combined one
63f275
another in their short or long variants. 
63f275

63f275

The ARGUMENTS variable is used to store arguments passed from

63f275
command-line for later use inside <tt>`centos-art.sh'</tt> script. Storing
63f275
arguments is specially useful when we want to run a command with some
63f275
specific options from them. Consider the following command:
63f275

63f275
centos-art path --copy=SOURCE --to=TARGET --message="The commit message goes here." --username='johndoe'
63f275
63f275

In the above command, the <samp>`--message'</samp>, and <samp>`--username'</samp>

63f275
options are specific to svn copy command. In such cases,
63f275
options are not interpreted by <tt>`centos-art.sh'</tt> script itself.
63f275
Instead, the <tt>`centos-art.sh'</tt> script uses getopt to
8c6b8a
retrive them and store them in the ARGUMENTS variable for later
63f275
use, as described in the following command:
63f275

63f275
# Build subversion command to duplicate locations inside the
63f275
# workstation.
63f275
eval svn copy $SOURCE $TARGET --quiet $ARGUMENTS
63f275
63f275

When getopt parses ARGUMENTS, we may use short options

63f275
(e.g., <samp>`-m'</samp>) or long options (e.g., <samp>`--message'</samp>). When
63f275
we use short options, arguments are separated by one space from the
63f275
option (e.g., <samp>`-m 'This is a commit message.''</samp>).  When we use
63f275
long options arguments are separated by an equal sign (<samp>`='</samp>)
63f275
(e.g., <samp>`--message='This is a commit message''</samp>).
63f275

63f275

In order for getopt to parse ARGUMENTS correctly, it

63f275
is required to provide the short and long definition of options that
63f275
will be passed or at least supported by the command performing the
63f275
final action the function script exists for.
63f275

63f275

As convenction, inside <tt>`centos-art.sh'</tt> script, short option

63f275
definitions are set in the ARGSS variable; and long option
63f275
definitions are set in the ARGSL variable.
63f275

63f275

When you define short and long options, it may be needed to define

63f275
which of these option arguments are required and which not. To define
63f275
an option argument as required, you need to set one colon <samp>`:'</samp>
63f275
after the option definition (e.g., <samp>`-o m: -l message:'</samp>).  On
63f275
the other hand, to define an option argument as not required, you need
63f275
to set two colons <samp>`::'</samp> after the option definition (e.g.,
63f275
<samp>`-o m:: -l message::'</samp>).
63f275

63f275
63f275
63f275
<u>Variable:</u> EDITOR
63f275
63f275
63f275

Default text editor.

63f275

63f275

The <tt>`centos-art.sh'</tt> script uses default text EDITOR to edit

63f275
pre-commit subversion messages, translation files, configuration
63f275
files, script files, and similar text-based files.
63f275

63f275

If EDITOR environment variable is not set, <tt>`centos-art.sh'</tt>

63f275
script uses <tt>`/usr/bin/vim'</tt> as default text editor. Otherwise, the
63f275
following values are recognized by <tt>`centos-art.sh'</tt> script:
63f275

54b5a5
    63f275
  • <tt>`/usr/bin/vim'</tt>
  • 63f275
  • <tt>`/usr/bin/emacs'</tt>
  • 63f275
  • <tt>`/usr/bin/nano'</tt>
  • 54b5a5
    008ee0
    63f275

    If no one of these values is set in EDITOR environment variable,

    63f275
    <tt>`centos-art.sh'</tt> uses <tt>`/usr/bin/vim'</tt> text editor by default. 
    63f275

    008ee0
    63f275
    63f275
    200d3f

    3.37.3.2 Global functions

    63f275
    58112f

    Function scripts stored directly under

    b864c5
    <tt>`trunk/Scripts/Bash/Functions/'</tt> directory are used to define
    58112f
    global functions.  Global functions can be used inside action specific
    b864c5
    functionalities and or even be reused inside themselves. This section
    f7b7e3
    provides introductory information to global functions you can use
    f7b7e3
    inside <tt>`centos-art.sh'</tt> script.
    63f275

    63f275
    200d3f
    <u>Function:</u> cli_checkActionArguments
    63f275
    63f275
    79adfc

    Validate action value (ACTIONVAL) variable.

    79adfc

    58112f

    The action value variable can take one of the following values:

    58112f

    58112f
      58112f
    1. Path to one directory inside the local working copy,
    2. 58112f
    3. Path to one file inside the local working copy,
    4. 58112f
    5. URL to one directory inside the remote central repository,
    6. 58112f
    7. URL to one file inside the remote central repository.
    8. 58112f
      58112f
      58112f

      If another value different from that specified above is passed to

      58112f
      action value variable, the <tt>`centos-art.sh'</tt> script prints an error
      58112f
      message and ends script execution.  Notice that when you provide a URL
      58112f
      there is no verification in order to determine the directory or file
      58112f
      you refered on it is valid or not.  That verification is done by the
      58112f
      command that receives the location inside the functionality. The only
      58112f
      verification <tt>`centos-art.sh'</tt> script makes with URL is granting
      58112f
      that they begin with <samp>`https://projects.centos.org/svn/artwork'</samp>.
      58112f

      79adfc

      cli_checkActionArguments is called from

      58112f
      cli_getActionArguments function and, probably, there is not
      58112f
      other use for cli_checkActionArguments but to be called from
      200d3f
      cli_getActionArguments function.
      58112f

      58112f

      Update cli_checkActionArguments function if you need to improve

      58112f
      action value (ACTIONVAL) variable input validation.
      58112f

      58112f
      63f275
      63f275
      63f275
      <u>Function:</u> cli_checkFiles FILE [TYPE]
      63f275
      63f275
      200d3f

      Verify file existence.

      63f275

      63f275

      cli_checkFiles receives a FILE absolute path and performs

      63f275
      file verification as specified in TYPE.  When TYPE is not
      63f275
      specified, cli_checkFiles verifies FILE existence, no
      63f275
      matter what kind of file it be.  If TYPE is specified, use one
      63f275
      of the following values:
      63f275

      63f275
      63f275
      <samp>`d'</samp>
      63f275
      <samp>`directory'</samp>
      63f275

      Ends script execution if FILE is not a directory.

      63f275

      63f275

      When you verify directories with cli_checkFiles, if directory doesn't

      63f275
      exist, <tt>`centos-art.sh'</tt> script asks you for confirmation in order
      63f275
      to create that directory. If you answer positively,
      63f275
      <tt>`centos-art.sh'</tt> script creates that directory and continues
      63f275
      script flows normally. Otherwise, if you answer negatively,
      63f275
      <tt>`centos-art.sh'</tt> ends script execution with an error and
      63f275
      documentation message.
      63f275

      63f275
      63f275
      <samp>`f'</samp>
      63f275
      <samp>`regular-file'</samp>
      63f275

      Ends script execution if FILE is not a regular file.

      63f275

      63f275
      <samp>`h'</samp>
      63f275
      <samp>`symbolic-link'</samp>
      63f275

      Ends script execution if FILE is not a symbolic link.

      63f275

      63f275
      <samp>`x'</samp>
      63f275
      <samp>`execution'</samp>
      63f275

      Ends script execution if FILE is not executable.

      63f275

      63f275
      <samp>`fh'</samp>
      f7b7e3

      Ends script execution if FILE is neither a regular file nor a

      63f275
      symbolic link.
      63f275

      f7b7e3
      <samp>`fd'</samp>
      f7b7e3

      Ends script execution if FILE is neither a regular file nor a

      f7b7e3
      directory.
      f7b7e3

      63f275
      63f275
      63f275

      As default behaviour, if FILE passes all verifications,

      63f275
      <tt>`centos-art.sh'</tt> script continues with its normal flow. 
      63f275

      63f275
      63f275
      200d3f
      <u>Function:</u> cli_commitRepoChanges [LOCATION]
      63f275
      63f275
      200d3f

      Syncronize changes between repository and working copy.

      200d3f

      200d3f

      The cli_commitRepoChanges function brings changes from the

      200d3f
      central repository down to the working copy--using svn
      200d3f
      update--, checks the working copy changes--using svn
      200d3f
      status command--, prints status report--using both svn
      200d3f
      update and svn status commands output, and finally, commits
      200d3f
      recent changes from the working copy up to the repository--using
      200d3f
      svn commit command--.
      200d3f

      200d3f

      Previous to commit the working copy changes up to the central

      200d3f
      repository, the cli_commitRepoChanges function asks you to
      200d3f
      verify changes--using svn diff command--, and later,
      200d3f
      another confirmation question is shown to be sure you really want to
      200d3f
      commit changes up to central repository.
      200d3f

      200d3f

      If LOCATION argument is not specified, the value of

      200d3f
      ACTIONVAL variable is used as reference instead.
      200d3f

      200d3f
      200d3f
      ----------------------------------------------------------------------
      200d3f
      --> Bringing changes from the repository into the working copy
      200d3f
      --> Checking changes in the working copy
      200d3f
      ----------------------------------------------------------------------
      200d3f
      Added           0 file from the repository.
      200d3f
      Deleted         0 file from the repository.
      200d3f
      Updated         0 file from the repository.
      200d3f
      Conflicted      0 file from the repository.
      200d3f
      Merged          0 file from the repository.
      200d3f
      Modified        4 files from the working copy.
      200d3f
      Unversioned     0 file from the working copy.
      200d3f
      Deleted         0 file from the working copy.
      200d3f
      Added           0 file from the working copy.
      200d3f
      ----------------------------------------------------------------------
      200d3f
      200d3f

      Figure 3.9: The cli_commitRepoChanges function output.

      200d3f
      200d3f

      200d3f

      Call the cli_commitRepoChanges function before or/and after

      200d3f
      calling functions that modify files or directories inside the working
      200d3f
      copy as you may need to.  
      200d3f

      200d3f
      200d3f
      200d3f
      <u>Function:</u> cli_doParseArguments
      200d3f
      200d3f
      58112f

      Redefine arguments (ARGUMENTS) global variable using

      79adfc
      getopt command output. For more information about how to use
      79adfc
      cli_doParseArguments function, see ARGUMENTS variable
      79adfc
      description above.
      79adfc

      200d3f
      200d3f
      79adfc
      <u>Function:</u> cli_doParseArgumentsReDef [$@]
      200d3f
      200d3f
      79adfc

      Initialize/reset arguments (ARGUMENTS) global variable using

      79adfc
      positional parameters variable ($@) as reference.
      79adfc

      79adfc

      When you use cli_doParseArgumentsReDef inside some function,

      79adfc
      the positional parameters variable ($@) is automatically reset
      79adfc
      to that function positional parameters, not the command-line
      79adfc
      positional parameters. 
      79adfc

      79adfc

      If you need to redefine specific positional parameters from one

      79adfc
      specific function, you need to call cli_doParseArgumentsReDef
      79adfc
      with the positional parameters variable ($@), set as first
      79adfc
      argument, to that specific function you want to redefine positional
      79adfc
      parameters on.
      79adfc

      79adfc

      In order to use positional paramenters passed as command-line, we use

      79adfc
      the ARGUMENTS global variable which is defined at cli
      f5c895
      function, and occasionally, farther redefined (by
      295cbf
      cli_doParseArgumentsReDef) as far as it may be convenient.
      79adfc

      200d3f
      200d3f
      96baa8
      <u>Function:</u> cli_getActionArguments [$@]
      200d3f
      200d3f
      96baa8

      Initialize function name (FUNCNAM), action name

      96baa8
      (ACTIONNAM), and action value (ACTIONVAL) global
      96baa8
      variables, using positional parameters passed in $@ variable.
      96baa8

      96baa8

      The cli_getActionsArguments function is called from

      58112f
      cli.sh function script, using cli function's positional
      58112f
      parameters (i.e., the positional parameters passed as arguments in the
      58112f
      command-line) as first function argument. 
      96baa8

      58112f

      Once command-line positional parameters are accesible to

      58112f
      <tt>`centos-art.sh'</tt> script execution evironment,
      58112f
      cli_getActionsArguments uses regular expression to retrive
      96baa8
      action variables from first and second argument. The first argument
      58112f
      defines the value used as function name (FUNCNAM), and the
      58112f
      second argument defines both values used as action name
      58112f
      (ACTIONNAM) and action value (ACTIONVAL), respectively.
      96baa8

      96baa8

      The first argument is a word in lower case. This word specifies the

      96baa8
      name of the functionality you want to use (e.g., <samp>`render'</samp> to
      58112f
      render images, <samp>`manual'</samp> to work on documentation, and so on.)
      96baa8

      96baa8

      The second argument has a long option style (e.g.,

      96baa8
      <samp>`--option=value'</samp>). The <samp>`--option'</samp> represents the action name
      58112f
      (ACTIONNAM), and the characters inbetween the equal sign
      58112f
      (<samp>`='</samp>) and the first space character, are considered as the action
      96baa8
      value (ACTIONVAL). In order to provide action values with space
      58112f
      characters inbetween you need to enclose action value with quotes like
      58112f
      in <samp>`--option='This is long value with spaces inbetween''</samp>.
      58112f
      Generally, action values are used to specify paths over which the
      58112f
      action name acts on.
      96baa8

      96baa8

      Once action related variables (i.e., FUNCNAM, ACTIONNAM,

      96baa8
      and ACTIONVAL) are defined and validated,
      96baa8
      cli_getActionsArguments shifts the positional arguments to
      a69d1a
      remove the first two arguments passed (i.e., those used to retrive
      96baa8
      action related variables) and redefine the arguments (ARGUMENTS)
      96baa8
      global variable with the new positional parameters information.
      96baa8

      200d3f
      200d3f
      200d3f
      <u>Function:</u> cli_getActions
      684dc0
      200d3f
      630254

      Initialize funtionalities supported by <tt>`centos-art.sh'</tt> script.

      630254

      630254

      Functionalities supported by <tt>`centos-art.sh'</tt> script are organized

      630254
      in functionality directories under
      630254
      <tt>`trunk/Scripts/Bash/Functions/'</tt> directory. Each functionality
      630254
      directory stores function scripts to the functionality such directory
      630254
      was created for. Function scripts contain function definitions.
      630254
      Function definitions contain several commands focused on achieving one
      a69d1a
      specific task only (i.e., the one such functionality was created for).
      630254

      a69d1a

      In order for <tt>`centos-art.sh'</tt> script to recognize a functionality,

      a69d1a
      such functionality needs to be stored under
      630254
      <tt>`trunk/Scripts/Bash/Functions/'</tt> in a directory written
      630254
      capitalized (i.e., the whole name is written in lowercase except the
      630254
      first character which is in uppercase). The directory where one
      630254
      specific functionality is stored is known as the <samp>`functionality
      630254
      directory'</samp>. 
      630254

      630254

      Inside each functionality directory, the functionalty itself is

      630254
      implemented through function scripts. Function scripts are organized
      a69d1a
      in files independently one another and written in <samp>`camelCase'</samp>
      a69d1a
      format with the function name as prefix.  Separation between prefix
      a69d1a
      and description is done using underscore (<samp>`_'</samp>) character.
      630254

      630254

      In order for <tt>`centos-art.sh'</tt> script to load functionalities

      630254
      correctly, function definition inside function scripts should be set
      630254
      using the <samp>`function'</samp> reserved word, just as in the following
      630254
      example:
      630254

      630254
      function prefix_doSomething {
      630254
      630254
          # Do something here...
      630254
      630254
      }
      630254
      a69d1a

      The above function definition is just a convenction we use, in order

      a69d1a
      to make identification of function names easier read and automate by
      a69d1a
      <tt>`centos-art.sh'</tt> script initialization commands, once
      a69d1a
      <tt>`centos-art.sh'</tt> script determines which functionality directory
      a69d1a
      to use.  Specifically, in order to initialize and export functions,
      a69d1a
      <tt>`centos-art.sh'</tt> script executes all function scripts inside the
      a69d1a
      functionality directory, and later grep on them using a
      a69d1a
      regular expression pattern, where the <samp>`function'</samp> reserved word is
      a69d1a
      used as reference to retrive the function names and export them to
      a69d1a
      <tt>`centos-art.sh'</tt> script execution environment, and so, make
      a69d1a
      function definitions --from function scripts inside the functionality
      a69d1a
      directory-- available for further calls.
      a69d1a

      a69d1a

      If the functionality specified in the command-line first argument

      a69d1a
      doesn't have a functionality directory, <tt>`centos-art.sh'</tt> script
      a69d1a
      considers the functionality provided in the command-line as invalid
      a69d1a
      functionality and immediatly stops script execution with an error
      a69d1a
      message.
      a69d1a

      a69d1a

      In order to keep visual consistency among function scripts, please

      a69d1a
      consider using the following function script design model as template
      a69d1a
      for your own function scripts:
      630254

      630254
      #!/bin/bash
      630254
      #
      630254
      # prefix_doSomething.sh -- This function illustrates function scripts
      630254
      # design model you can use to create your own function scripts inside
      630254
      # centos-art.sh script.
      630254
      #
      630254
      # Copyright (C) YEAR YOURFULLNAME
      630254
      #
      630254
      # This program is free software; you can redistribute it and/or modify
      630254
      # it under the terms of the GNU General Public License as published by
      630254
      # the Free Software Foundation; either version 2 of the License, or
      630254
      # (at your option) any later version.
      630254
      # 
      630254
      # This program is distributed in the hope that it will be useful, but
      630254
      # WITHOUT ANY WARRANTY; without even the implied warranty of
      630254
      # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      630254
      # General Public License for more details.
      630254
      #
      630254
      # You should have received a copy of the GNU General Public License
      630254
      # along with this program; if not, write to the Free Software
      630254
      # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      630254
      # USA.
      630254
      # 
      630254
      # ----------------------------------------------------------------------
      630254
      # $Id$
      630254
      # ----------------------------------------------------------------------
      630254
      630254
      function prefix_doSomething {
      630254
      630254
          # Do something here...
      630254
      630254
      }
      a69d1a
      200d3f
      200d3f
      200d3f
      <u>Function:</u> cli_getCountryCodes [FILTER]
      684dc0
      200d3f
      f7b7e3

      Output country codes supported by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      The cli_getCountryCodes function outputs a list with country

      63f275
      codes as defined in ISO3166 standard. When FILTER is provided,
      63f275
      cli_getCountryCodes outputs country codes that match
      63f275
      FILTER regular expression pattern.
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_getCountryName [FILTER]
      684dc0
      63f275
      f7b7e3

      Outputs country name supported by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      The cli_getCountryName function reads one language locale code

      63f275
      in the format LL_CC and outputs the name of its related country as in
      63f275
      ISO3166. If filter is specified, cli_getCountryName returns the
      63f275
      country name that matches the locale code specified in FILTER,
      63f275
      exactly.
      63f275

      63f275
       
      63f275
      63f275
      <u>Function:</u> cli_getCurrentLocale
      684dc0
      63f275
      63f275

      Output current locale used by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      The cli_getCurrentLocale function uses LANG environment

      63f275
      variable to build a locale pattern that is later applied to
      63f275
      cli_getLocales function output in order to return the current
      63f275
      locale that <tt>`centos-art.sh'</tt> script works with. 
      63f275

      63f275

      The current locale information, returned by

      63f275
      cli_getCurrentLocale, is output from more specific to less
      63f275
      specific. For example, if <samp>`en_GB'</samp> locale exists in
      63f275
      cli_getLocales function output, the <samp>`en_GB'</samp> locale would
      63f275
      take precedence before <samp>`en'</samp> locale.
      63f275

      63f275

      Locale precedence selection is quite important in order to define the

      63f275
      locale type we use for message translations. For example, if
      f7b7e3
      <samp>`en_GB'</samp> is used, we are also saying that the common language
      f7b7e3
      specification for English language (i.e., <samp>`en'</samp>) is no longer
      f7b7e3
      used. Instead, we are using English non-common country-specific
      f7b7e3
      language specifications like <samp>`en_AU'</samp>, <samp>`en_BW'</samp>, <samp>`en_GB'</samp>,
      63f275
      <samp>`en_US'</samp>, etc., for message translations.  
      63f275

      63f275

      Use cli_getCurrentLocale function to know what current locale

      63f275
      information to use inside <tt>`centos-art.sh'</tt> script.
      63f275

      63f275
      63f275
      a69d1a
      <u>Function:</u> cli_getFilesList [LOCATION]
      684dc0
      200d3f
      a69d1a

      Output list of files to process.

      a69d1a

      a69d1a

      The cli_getFilesList function uses LOCATION variable as

      a69d1a
      source location to build a list of files just as specified by regular
      dc206c
      expression (REGEX) global variable. Essentially, what the
      dc206c
      cli_getFilesList function does is using find command
      dc206c
      to look for files in the location (LOCATION) just as posix-egrep
      dc206c
      regular expression (REGEX) specifies. 
      a69d1a

      a69d1a

      If LOCATION is not specified when cli_getFilesList

      a69d1a
      function is called, the action value (ACTIONVAL) global variable
      dc206c
      is used as location value instead.
      a69d1a

      a69d1a

      By default, if the regular expression (REGEX) global variable is

      dc206c
      not redefined after its first definition in the cli function,
      dc206c
      all files that match default regular expression value (i.e.,
      dc206c
      <samp>`.+'</samp>) will be added to the list of files to process. Otherwise,
      dc206c
      if you redefine the regular expression global variable after its first
      dc206c
      definition in the cli function and before calling
      dc206c
      cli_getFilesList function, the value you specifed is used
      dc206c
      instead.
      dc206c

      dc206c

      When you need to customize the regular expression (REGEX) global

      dc206c
      variable value inside a function, do not redefine the global variable
      dc206c
      (at least you be absolutly convinced you need to).  Instead, set the
      dc206c
      regular expression global variable as <samp>`local'</samp> to the function you
      dc206c
      need a customized regular expression value for.  If we don't redefine
      dc206c
      the regular expression global variable as local to the function, or
      dc206c
      use another name for the regular expression variable (which is not
      dc206c
      very convenient in order to keep the amount of names to remember low),
      dc206c
      you may experiment undesired concantenation issues that make your
      dc206c
      regular expression to be something different from that you expect them
      dc206c
      to be, specially if the function you are doing the variable
      dc206c
      redefinition is called several times during the same script execution.
      dc206c

      200d3f
      200d3f
      63f275
      <u>Function:</u> cli_getLangCodes [FILTER]
      684dc0
      63f275
      f7b7e3

      Outputs language codes supported by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      cli_getLangCodes function outputs a list of language codes as

      63f275
      defined in ISO639 standard. When FILTER is provided,
      63f275
      cli_getLangCodes outputs language codes that match FILTER
      63f275
      regular expression pattern.
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_getLangName [FILTER]
      684dc0
      63f275
      f7b7e3

      Outputs language names supported by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      cli_getLangName function reads one language locale code in the

      63f275
      format LL_CC and outputs the language related name as in ISO639. If
      63f275
      filter is specified, cli_getLangName returns the language name
      63f275
      that matches the locale code specified in FILTER, exactly.
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_getLocales
      684dc0
      63f275
      63f275

      Output locale codes supported by <tt>`centos-art.sh'</tt> script.

      63f275

      63f275

      Occasionally, you use cli_getLocales function to add locale

      63f275
      information in non-common country-specific language (<samp>`LL_CC'</samp>)
      63f275
      format for those languages (e.g., <samp>`bn_IN'</samp>, <samp>`pt_BR'</samp>, etc.)
      63f275
      which locale differences cannot be solved using common language
      63f275
      specifications (<samp>`LL'</samp>) into one unique common locale specification
      63f275
      (e.g., <samp>`bn'</samp>, <samp>`pt'</samp>, etc.).  
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_getRepoName NAME TYPE
      684dc0
      63f275
      63f275

      Sanitate file names.

      63f275

      63f275

      Inside <tt>`centos-art.sh'</tt> script, specific functionalities rely both

      63f275
      in cli_getRepoName and repository file system organization to
      63f275
      achieve their goals.  Consider cli_getRepoName function as
      63f275
      central place to manage file name convenctions for other functions
      63f275
      inside <tt>`centos-art.sh'</tt> script.
      63f275

      63f275
      Important

      Important

      cli_getRepoName function doesn't verify file

      63f275
      or directory existence, for that purpose use cli_checkFiles
      63f275
      function instead.
      63f275

      63f275
      63f275

      The NAME variable contains the file name or directory name you

      63f275
      want to sanitate.
      63f275

      f7b7e3

      The TYPE variable specifies what type of sanitation you want to

      f7b7e3
      perform on NAME. The TYPE can be one of the following
      f7b7e3
      values:
      f7b7e3

      f7b7e3
      63f275
      <samp>`d'</samp>
      63f275
      <samp>`directory'</samp>
      63f275

      Sanitate directory NAMEs.

      63f275

      63f275
      <samp>`f'</samp>
      63f275
      <samp>`regular-file'</samp>
      63f275

      Sanitate regular file NAMEs.

      63f275

      63f275
      63f275
      63f275

      Use cli_getRepoName function to sanitate file names and

      63f275
      directory names before their utilization. 
      63f275

      63f275

      Use cli_getRepoName when you need to change file name

      63f275
      convenctions inside <tt>`centos-art.sh'</tt> script. 
      63f275

      200d3f

      When we change file name convenctions inside cli_getRepoName

      200d3f
      what we are really changing is the way functions interpret repository
      200d3f
      file system organization. Notice that when we change a file name
      200d3f
      (e.g., a function name), it is necessary to update all files where
      200d3f
      such file name is placed on. This may require a massive substitution,
      749e81
      each time we change name convenctions in the repository (see section trunk/Scripts/Bash/Functions/Path, for more information).
      200d3f

      200d3f
      200d3f
      200d3f
      <u>Function:</u> cli_getRepoStatus
      684dc0
      200d3f
      200d3f
      63f275
      63f275
      63f275
      <u>Function:</u> cli_getTemporalFile NAME
      684dc0
      63f275
      63f275

      Output absolute path to temporal file NAME.

      63f275

      63f275

      cli_getTemporalFile uses <tt>`/tmp'</tt> directory as source

      63f275
      location to store temporal files, the <tt>`centos-art.sh'</tt> script
      63f275
      name, and a random identification string to let you run more than one
      63f275
      <tt>`centos-art.sh'</tt> script simultaneously on the same user session.
      63f275
      For example, due the following temporal file defintion:
      63f275

      63f275
      cli_getTemporalFile $FILE
      63f275
      63f275

      If FILE name is <tt>`instance.svg'</tt> and unique random string is

      63f275
      <samp>`f16f7b51-ac12-4b7f-9e66-72df847f12de'</samp>, the final temporal file,
      63f275
      built from previous temporal file definition, would be:
      63f275

      63f275
      /tmp/centos-art.sh-f16f7b51-ac12-4b7f-9e66-72df847f12de-instance.svg
      63f275
      63f275

      When you use cli_getTemporalFile function to create temporal

      63f275
      files, be sure to remove temporal files created once you've ended up
      63f275
      with them.  For example, consider the following construction:
      63f275

      63f275
      for FILE in $FILES;do
      63f275
      63f275
          # Initialize temporal instance of file.
      63f275
          INSTANCE=$(cli_getTemporalFile $FILE)
      63f275
      63f275
          # Do something ... 
      63f275
      63f275
          # Remove temporal instance of file.
      63f275
          if [[ -f $INSTANCE ]];then
      63f275
              rm $INSTANCE
      63f275
          fi
      63f275
      63f275
      done
      63f275
      63f275

      Use cli_getTemporalFile function whenever you need to create

      63f275
      temporal files inside <tt>`centos-art.sh'</tt> script.
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_getThemeName
      684dc0
      63f275
      63f275

      Output theme name.

      63f275

      63f275

      In order for cli_getThemeName function to extract theme name

      63f275
      correctly, the ACTIONVAL variable must contain a directory path
      63f275
      under <tt>`trunk/Identity/Themes/Motifs/'</tt> directory structure.
      63f275
      Otherwise, cli_getThemeName returns an empty string.  
      63f275

      63f275
      63f275
      63f275
      <u>Function:</u> cli_printMessage MESSAGE [FORMAT]
      684dc0
      63f275
      200d3f

      Define standard output message definition supported by

      200d3f
      <tt>`centos-art.sh'</tt> script.
      63f275

      63f275

      When FORMAT is not specified, cli_printMessage outputs

      63f275
      information just as it was passed in MESSAGE variable.
      63f275
      Otherwise, FORMAT can take one of the following values:
      63f275

      63f275
      63f275
      <samp>`AsHeadingLine'</samp>
      63f275

      To print heading messages.

      63f275

      ----------------------------------------------------------------------
      63f275
      $MESSAGE
      63f275
      ----------------------------------------------------------------------
      63f275
      63f275
      63f275
      <samp>`AsWarningLine'</samp>
      63f275

      To print warning messages.

      63f275

      ----------------------------------------------------------------------
      63f275
      WARNING: $MESSAGE
      63f275
      ----------------------------------------------------------------------
      63f275
      63f275
      63f275
      <samp>`AsNoteLine'</samp>
      63f275

      To print note messages.

      63f275

      ----------------------------------------------------------------------
      63f275
      NOTE: $MESSAGE
      63f275
      ----------------------------------------------------------------------
      63f275
      63f275
      63f275
      <samp>`AsUpdatingLine'</samp>
      200d3f

      To print <samp>`Updating'</samp> messages on two-columns format.

      63f275

      Updating        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsRemovingLine'</samp>
      200d3f

      To print <samp>`Removing'</samp> messages on two-columns format.

      63f275

      Removing        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsCheckingLine'</samp>
      200d3f

      To print <samp>`Checking'</samp> messages on two-columns format.

      63f275

      Checking        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsCreatingLine'</samp>
      200d3f

      To print <samp>`Creating'</samp> messages on two-columns format.

      63f275

      Creating        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsSavedAsLine'</samp>
      200d3f

      To print <samp>`Saved as'</samp> messages on two-columns format.

      63f275

      Saved as        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsLinkToLine'</samp>
      200d3f

      To print <samp>`Linked to'</samp> messages on two-columns format.

      63f275

      Linked to       $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsMovedToLine'</samp>
      200d3f

      To print <samp>`Moved to'</samp> messages on two-columns format.

      63f275

      Moved to        $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsTranslationLine'</samp>
      200d3f

      To print <samp>`Translation'</samp> messages on two-columns format.

      63f275

      Translation     $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsConfigurationLine'</samp>
      200d3f

      To print <samp>`Configuration'</samp> messages on two-columns format.

      63f275

      Configuration   $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsResponseLine'</samp>
      200d3f

      To print response messages on one-column format.

      63f275

      --> $MESSAGE
      63f275
      63f275
      63f275
      <samp>`AsRequestLine'</samp>
      200d3f

      To print request messages on one-column format. Request messages

      200d3f
      output messages with one colon (<samp>`:'</samp>) and without trailing newline
      200d3f
      (<samp>`\n'</samp>) at message end.
      200d3f

      $MESSAGE:
      63f275
      63f275
      63f275
      <samp>`AsYesOrNoRequestLine'</samp>
      200d3f

      To print <samp>`yes or no'</samp> request messages on one-column format. If

      63f275
      something different from <samp>`y'</samp> is answered (when using
      63f275
      en_US.UTF-8 locale), script execution ends immediatly.  
      63f275

      63f275
      $MESSAGE [y/N]:
      63f275
      200d3f

      When we use <tt>`centos-art.sh'</tt> script in a locale different from

      200d3f
      en_US.UTF-8, confirmation answer may be different from
      200d3f
      <samp>`y'</samp>. For example, if you use es_ES.UTF-8 locale, the
      63f275
      confirmation question would look like:
      63f275

      63f275
      $MESSAGE [s/N]:
      63f275
      63f275

      and the confirmation answer would be <samp>`s'</samp>, as it is on Spanish

      63f275
      <samp>`sí'</samp> word.
      63f275

      63f275

      Definition of which confirmation word to use is set on translation

      749e81
      messages for your specific locale information. See section trunk/Scripts/Bash/Functions/Locale, for more information about locale-specific
      63f275
      translation messages.
      63f275

      63f275
      63f275
      <samp>`AsToKnowMoreLine'</samp>
      63f275

      To standardize <samp>`to know more, run the following command:'</samp>

      63f275
      messages. When the <samp>`AsToKnowMoreLine'</samp> option is used, the
      63f275
      MESSAGE value should be set to "$(caller)". caller
      63f275
      is a Bash builtin that returns the context of the current subroutine
      63f275
      call. <samp>`AsToKnowMoreLine'</samp> option uses caller builtin
      63f275
      output to build documentation entries dynamically.
      63f275

      63f275
      ----------------------------------------------------------------------
      63f275
      To know more, run the following command:
      f7b7e3
      centos-art manual --read='path/to/dir'
      63f275
      ----------------------------------------------------------------------
      63f275
      63f275

      Use <samp>`AsToKnowMoreLine'</samp> option after errors and for intentional

      63f275
      script termination. 
      63f275

      63f275
      63f275
      <samp>`AsRegularLine'</samp>
      200d3f

      To standardize regular messages on one-column format.

      63f275

      63f275

      When MESSAGE contains a colon inside (e.g., <samp>`description:

      63f275
      message'</samp>), the cli_printMessage function outputs MESSAGE
      200d3f
      on two-columns format. 
      63f275

      63f275
      63f275
      200d3f

      Use cli_printMessage function whenever you need to output

      200d3f
      information from <tt>`centos-art.sh'</tt> script.
      200d3f

      63f275
      Info

      Tip

      To improve two-columns format, change the following file:

      63f275

      trunk/Scripts/Bash/Styles/output_forTwoColumns.awk
      63f275
      200d3f
      63f275
      63f275
      63f275
      63f275

      3.37.3.3 Specific functions

      63f275
      63f275

      The following specific functions of <tt>`centos-art.sh'</tt> script, are

      63f275
      available for you to use:
      63f275

      63f275
      749e81
      3.38 trunk/Scripts/Bash/Functions/Html  
      63f275
      749e81
      3.39 trunk/Scripts/Bash/Functions/Locale  
      63f275
      749e81
      3.40 trunk/Scripts/Bash/Functions/Manual  
      63f275
      749e81
      3.41 trunk/Scripts/Bash/Functions/Path  
      63f275
      749e81
      3.42 trunk/Scripts/Bash/Functions/Render  
      63f275
      749e81
      3.43 trunk/Scripts/Bash/Functions/Render/Config  
      63f275
      749e81
      3.44 trunk/Scripts/Bash/Functions/Shell  
      63f275
      749e81
      3.45 trunk/Scripts/Bash/Functions/Svg  
      035049
      749e81
      3.46 trunk/Scripts/Bash/Functions/Verify  
      63f275
      63f275
      63f275
      63f275
      63f275
      6ba043

      3.37.4 See also

      6ba043
      63f275
      63f275
      3.36 trunk/Scripts/Bash  
      63f275
      749e81
      3.47 trunk/Scripts/Bash/Locale  
      63f275
      63f275
      4c79b5
      5fb024
      4c79b5
      63f275
      [ < ]
      63f275
      [ > ]
      4c79b5
         
      4c79b5
      [ << ]
      008ee0
      [ Up ]
      749e81
      [ >> ]
      4c79b5
      4c79b5

      4c79b5
       <font size="-1">
      de1f5e
        This document was generated on December, 6 2010 using texi2html 1.76.
      4c79b5
       </font>
      4c79b5
       
      4c79b5
      4c79b5

      4c79b5
      </body>
      4c79b5
      </html>