Blame Scripts/Bash/Functions/cli.sh

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#!/bin/bash
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#
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# cli.sh -- This function initializes centos-art command line
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# interface.  Variables defined in this function are accesible by all
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# other functions. The cli function is the first script executed by
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# centos-art command-line onces invoked.
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#
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# Copyright (C) 2009-2010 Alain Reguera Delgado
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# 
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# 
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA.
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# 
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# ----------------------------------------------------------------------
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# $Id: cli.sh 98 2010-09-19 16:01:53Z al $
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# ----------------------------------------------------------------------
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function cli {
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    # Define action variable using first argument (lowercase) value.
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    ACTION=$(cli_getRepoName 'f' "$1")
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    # Define option name (OPTIONNAM) and option value (OPTIONVAL)
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    # variables passed as second argument to the command line
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    # interface when the format is `--option=value' without the value
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    # part.
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    if [[ "$2" =~ '^--[a-z-]+=.+$' ]];then
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        # Define option name passed in the second argument.
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        OPTIONNAM=$(echo "$2" | cut -d = -f1)
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        # Define option value passed in the second argument. 
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        OPTIONVAL=$(echo "$2" | cut -d = -f2-)
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        # Check option value passed in the second argument.
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        cli_checkOptionValue
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    # Define option name (OPTIONNAM), and option value (OPTIONVAL)
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    # variables passed as second argument to the command line
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    # interface when the format is `--option' without the value part.
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    elif [[ "$2" =~ '^--[a-z-]+=?$' ]];then
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        # Define option name passed in the second argument.
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        OPTIONNAM=$(echo "$2" | cut -d = -f1)
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        # Define option value passed in the second argument. Assume
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        # the local path. This saves you some typing when you are
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        # in the place you want to apply your action on.
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        if [[ $(pwd) =~ '^/home/centos/artwork/.+$' ]];then
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            OPTIONVAL=$(pwd)
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        else
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            OPTIONVAL='/home/centos/artwork/trunk'
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        fi
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    # Define default option name (OPTIONNAM), and default option value
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    # (OPTIONVAL) when no second argument is passed to the command
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    # line interface.
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    else
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        # Define default option name.
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        OPTIONNAM="default"
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        # Define default option value.
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        if [[ $(pwd) =~ '^/home/centos/artwork/.+$' ]];then
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            OPTIONVAL=$(pwd)
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        else
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            OPTIONVAL='/home/centos/artwork/trunk'
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        fi
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    fi
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    # Define regular expression (REGEX) used to reduce file
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    # processing. If no regular expression is defined, set regular
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    # expression to match everything.
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    if [[ "$3" =~ '^--filter=.+$' ]];then
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        REGEX=$(echo "$3" | cut -d '=' -f2-)
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    else
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        REGEX='.+'
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    fi
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    # If option value plus the filter value (REGEX) points to a valid
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    # file, re-define the option value (OPTIONVAL) using the
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    # directory/file absolute path combination instead. This let you
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    # create documentation entries for files too.
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    if [[ -f $OPTIONVAL/$REGEX ]];then
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        OPTIONVAL=$OPTIONVAL/$REGEX
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    fi
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    # Define positive answer.
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    Y="`gettext "y"`"
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    # Define negative answer.
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    N="`gettext "N"`"
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    # Define default answer to questions.
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    ANSWER=${N}
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    # Define a unique string based on script name and process id used
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    # to create temporal files under /tmp/.
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    FILEID="centos-art$$"
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    # Define text editor used to edit texinfo documentation. Predifine
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    # possible editors paths here to avoid malevolent values. If we do
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    # not create this restriction editor can be set to anything other
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    # than a text editor and in that case be executed when you try to
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    # edit a documentation entry using the `centos-art help --edit'
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    # command.
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    if [[ ! "$EDITOR" =~ '/usr/bin/(emacs|vim|nano)' ]];then
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        EDITOR='/usr/bin/vim'
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    fi
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    # Go to defined actions. Keep the cli_getActions function calling
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    # after all variables and arguments definitions. Reason? To make
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    # all variables and arguments definitions available inside
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    # cli_Actions and subsequent function calls inside it.
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    cli_getActions "$@"
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}