Blame Scripts/Functions/cli_printMessage.sh

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#!/bin/bash
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#
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# cli_printMessage.sh -- This function standardizes the way messages
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# are printed out from centos-art.sh script.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG
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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 (at
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# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function cli_printMessage {
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    # Verify `--quiet' option.
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    if [[ "$FLAG_QUIET" == 'true' ]];then
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        return
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    fi
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    local MESSAGE="$1"
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    local FORMAT="$2"
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    # Verify message variable, it cannot have an empty value.
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    if [[ $MESSAGE == '' ]];then
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        cli_printMessage "`gettext "The message cannot be empty."`" --as-error-line
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    fi
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    # Reverse the codification performed on characters that may affect
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    # parsing options and non-option arguments. This codification is
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    # realized before building the ARGUMENTS variable, at
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    # cli_parseArgumentsReDef, and we need to reverse it back here
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    # in order to show the correct character when the message be
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    # printed out on the screen.
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    MESSAGE=$(echo $MESSAGE | sed -e "s/\\\0x27/'/g")
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    # Remove empty spaces from message.
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    MESSAGE=$(echo $MESSAGE | sed -e 's!^[[:space:]]+!!')
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    # Print out messages based on format.
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    case "$FORMAT" in
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        --as-separator-line )
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        # Define width of separator line.
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        local MAX=70
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        # Build the separator line. 
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        MESSAGE=$(\
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            until [[ $MAX -eq 0 ]];do
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                echo -n "$MESSAGE"
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                MAX=$(($MAX - 1))
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            done)
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        # Draw the separator line.
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        echo "$MESSAGE" > /dev/stderr
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        ;;
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        --as-banner-line )
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            cli_printMessage '-' --as-separator-line
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            cli_printMessage "$MESSAGE"
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            cli_printMessage '-' --as-separator-line
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            ;;
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        --as-cropping-line )
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            cli_printMessage "`gettext "Cropping from"`: $MESSAGE"
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            ;;
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        --as-tuningup-line )
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            cli_printMessage "`gettext "Tuning-up"`: $MESSAGE"
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            ;;
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        --as-checking-line )
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            cli_printMessage "`gettext "Checking"`: $MESSAGE"
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            ;;
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        --as-creating-line | --as-updating-line )
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            if [[ -a "$MESSAGE" ]];then
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                cli_printMessage "`gettext "Updating"`: $MESSAGE"
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            else
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                cli_printMessage "`gettext "Creating"`: $MESSAGE"
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            fi
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            ;;
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        --as-deleting-line )
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            cli_printMessage "`gettext "Deleting"`: $MESSAGE"
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            ;;
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        --as-reading-line )
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            cli_printMessage "`gettext "Reading"`: $MESSAGE"
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            ;;
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        --as-savedas-line )
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            cli_printMessage "`gettext "Saved as"`: $MESSAGE"
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            ;;
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        --as-linkto-line )
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            cli_printMessage "`gettext "Linked to"`: $MESSAGE"
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            ;;
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        --as-movedto-line )
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            cli_printMessage "`gettext "Moved to"`: $MESSAGE"
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            ;;
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        --as-translation-line )
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            cli_printMessage "`gettext "Translation"`: $MESSAGE"
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            ;;
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        --as-validating-line )
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            cli_printMessage "`gettext "Validating"`: $MESSAGE"
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            ;;
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        --as-template-line )
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            cli_printMessage "`gettext "Template"`: $MESSAGE"
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            ;;
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        --as-configuration-line )
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            cli_printMessage "`gettext "Configuration"`: $MESSAGE"
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            ;;
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        --as-palette-line )
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            cli_printMessage "`gettext "Palette"`: $MESSAGE"
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            ;;
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        --as-response-line )
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            cli_printMessage "--> $MESSAGE"
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            ;;
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        --as-request-line )
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            cli_printMessage "${MESSAGE}: " --as-notrailingnew-line
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            ;;
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        --as-error-line )
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            # Define where the error was originated inside the
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            # centos-art.sh script. Print out the function name and
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            # line from the caller.
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            local ORIGIN="${CLI_PROGRAM} ($(caller 1 | gawk '{ print $2 " " $1 }'))"
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            # Build the error message.
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            cli_printMessage "${ORIGIN}: ${MESSAGE}" --as-stderr-line
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            cli_printMessage "${FUNCDIRNAM}" --as-toknowmore-line
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            ;;
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        --as-toknowmore-line )
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            cli_printMessage '-' --as-separator-line
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            cli_printMessage "`gettext "To know more, run the following command"`:"
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            cli_printMessage "centos-art help --read trunk/Scripts/Functions/$MESSAGE"
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            cli_printMessage '-' --as-separator-line
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            exit # <-- ATTENTION: Do not remove this line. We use this
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                 #                option as convenction to end script
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                 #                execution.
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            ;;
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        --as-yesornorequest-line )
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            # Define positive answer.
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            local Y="`gettext "yes"`"
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            # Define negative answer.
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            local N="`gettext "no"`"
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            # Define default answer.
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            local ANSWER=${N}
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            if [[ $FLAG_ANSWER == 'true' ]];then
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                ANSWER=${Y}
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            else
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                # Print the question.
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                cli_printMessage "$MESSAGE [${Y}/${N}]: " --as-notrailingnew-line
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                # Redefine default answer based on user's input.
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                read ANSWER
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            fi
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            # Verify user's answer. Only positive answer let the
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            # script flow to continue. Otherwise, if something
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            # different from possitive answer is passed, the script
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            # terminates its execution immediatly.
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            if [[ ! ${ANSWER} =~ "^${Y}" ]];then
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                exit
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            fi
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            ;;
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        --as-notrailingnew-line )
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            echo -n "$MESSAGE" > /dev/stderr
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            ;;
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        --as-stdout-line )
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            echo "$MESSAGE"
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            ;;
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        --as-stderr-line )
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            echo "$MESSAGE" > /dev/stderr
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            ;;
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        * )
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            # Default printing format. This is the format used when no
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            # other specification is passed to this function. As
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            # convenience, we transform absolute paths into relative
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            # paths in order to free horizontal space on final output
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            # messages.
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            echo "$MESSAGE" | sed -r \
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                -e "s!${HOME}/artwork/(trunk|branches|tags)/!\1/!g" \
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                | awk 'BEGIN { FS=": " }
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                    { 
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                        if ( $0 ~ /^-+$/ )
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                            print $0
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                        else
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                            printf "%-15s\t%s\n", $1, $2
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                    }
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                    END {}' > /dev/stderr
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            ;;
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    esac
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}