setup.sh

#!/bin/bash

appDirectory=`realpath "$(dirname $BASH_SOURCE)"`

source "$appDirectory/setup-files/utilities.sh"

source "$appDirectory/setup-files/setup-libpng.sh"
source "$appDirectory/setup-files/setup-libgd.sh"
source "$appDirectory/setup-files/setup-libexpat.sh"
source "$appDirectory/setup-files/setup-graphviz.sh"
source "$appDirectory/setup-files/setup-plantuml.sh"
source "$appDirectory/setup-files/setup-mermaid.sh"
source "$appDirectory/setup-files/setup-ditaa.sh"
source "$appDirectory/setup-files/setup-blockdiag-tools.sh"
source "$appDirectory/setup-files/setup-zlib.sh"
source "$appDirectory/setup-files/setup-libjpeg.sh"

serverHostname=""
serverPortNumber=3000
authenticatedDownloadsEnabled="yes"
authenticationDetails_Username=""
authenticationDetails_Password=""

DEPENDENCY_libgdDirectory=""
DEPENDENCY_graphvizDirectory=""
DEPENDENCY_libpngDirectory=""
DEPENDENCY_plantumlBinary=""
DEPENDENCY_mermaidBinary=""
DEPENDENCY_ditaaBinary=""
DEPENDENCY_actdiagBinary=""
DEPENDENCY_nwdiagBinary=""
DEPENDENCY_blockdiagBinary=""
DEPENDENCY_seqdiagBinary=""
DEPENDENCY_packetdiagBinary=""
DEPENDENCY_rackdiagBinary=""
DEPENDENCY_zlibDirectory=""
DEPENDENCY_libjpegDirectory=""
DEPENDENCY_blockdiagAppDir=""
DEPENDENCY_libexpatDirectory=""

function GenerateDepedenciesJs()
{
    Log "Generating the Dependencies JS File..."
    
    echo -e "// WARNING : Generated file. Do not delete.\n" > "$appDirectory/dependencies.js"
    echo -e "const serverHostname = '$serverHostname';" >> "$appDirectory/dependencies.js"
    echo -e "const serverPortNumber = $serverPortNumber;" >> "$appDirectory/dependencies.js"
    echo -e "const authenticatedDownloadsEnabled = $authenticatedDownloadsEnabled;" >> "$appDirectory/dependencies.js"
    
    if [[ "$authenticatedDownloadsEnabled" == "true" ]]
    then
        echo -e "const authenticationDetailsUsername = '$authenticationDetails_Username';" >> "$appDirectory/dependencies.js"
        echo -e "const authenticationDetailsPassword = '$authenticationDetails_Password';" >> "$appDirectory/dependencies.js"
    fi
    
    echo -e "" >> "$appDirectory/dependencies.js"
    echo -e "const graphvizBinary = '$DEPENDENCY_graphvizDirectory/bin/dot';" >> "$appDirectory/dependencies.js"
    echo -e "const plantumlBinary = '$DEPENDENCY_plantumlBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const mermaidBinary = '$DEPENDENCY_mermaidBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const ditaaBinary = '$DEPENDENCY_ditaaBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const actdiagBinary = '$DEPENDENCY_actdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const nwdiagBinary = '$DEPENDENCY_nwdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const blockdiagBinary = '$DEPENDENCY_blockdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const seqdiagBinary = '$DEPENDENCY_seqdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const packetdiagBinary = '$DEPENDENCY_packetdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "const rackdiagBinary = '$DEPENDENCY_rackdiagBinary';" >> "$appDirectory/dependencies.js"
    echo -e "" >> "$appDirectory/dependencies.js"
    echo -e "const blockdiagTools = {};" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['actdiag'] = actdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['nwdiag'] = nwdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['blockdiag'] = blockdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['seqdiag'] = seqdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['packetdiag'] = packetdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "blockdiagTools['rackdiag'] = rackdiagBinary;" >> "$appDirectory/dependencies.js"
    echo -e "" >> "$appDirectory/dependencies.js"
    echo -e "function PrintDependencyLocations()" >> "$appDirectory/dependencies.js"
    echo -e "{" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Graphviz Binary Path = '\" + graphvizBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Plantuml Binary Path = '\" + plantumlBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Mermaid Binary Path = '\" + mermaidBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Ditaa Binary Path = '\" + ditaaBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Actdiag Binary Path = '\" + actdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Nwdiag Binary Path = '\" + nwdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Blockdiag Binary Path = '\" + blockdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Seqdiag Binary Path = '\" + seqdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Packetdiag Binary Path = '\" + packetdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "\tconsole.log(\"* Rackdiag Binary Path = '\" + rackdiagBinary + \"'\");" >> "$appDirectory/dependencies.js"
    echo -e "}" >> "$appDirectory/dependencies.js"
    echo -e "" >> "$appDirectory/dependencies.js"
    echo -e "module.exports = {" >> "$appDirectory/dependencies.js"
    echo -e "\tserverHostname," >> "$appDirectory/dependencies.js"
    echo -e "\tserverPortNumber," >> "$appDirectory/dependencies.js"
    echo -e "\tauthenticatedDownloadsEnabled," >> "$appDirectory/dependencies.js"
    
    if [[ "$authenticatedDownloadsEnabled" == "true" ]]
    then
        echo -e "\tauthenticationDetailsUsername," >> "$appDirectory/dependencies.js"
        echo -e "\tauthenticationDetailsPassword," >> "$appDirectory/dependencies.js"
    fi
    
    echo -e "\tgraphvizBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tplantumlBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tmermaidBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tditaaBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tactdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tnwdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tblockdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tseqdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tpacketdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\trackdiagBinary," >> "$appDirectory/dependencies.js"
    echo -e "\tblockdiagTools," >> "$appDirectory/dependencies.js"
    echo -e "\tPrintDependencyLocations" >> "$appDirectory/dependencies.js"
    echo -e "};" >> "$appDirectory/dependencies.js"
}

function GenerateDefaultPage()
{
    defaultPageTemplate="$appDirectory/resources/default.html.template"
    defaultPageLocation="$appDirectory/resources/default.html"
    
    if [ ! -f "$defaultPageTemplate" ]
    then
        echo "The required template file '$defaultPageTemplate' does not exit. Please make sure that the the repository is not modified."
        exit 1
    fi
    
    if [ -f "$defaultPageLocation" ]
    then
        rm -rf "$defaultPageLocation" > /dev/null 2>&1
    fi
    
    cp "$defaultPageTemplate" "$defaultPageLocation" > /dev/null 2>&1
    sed "s|\[SERVER_HOST_NAME\]|$serverHostname|g" -i "$defaultPageLocation" > /dev/null 2>&1
    sed "s|\[SERVER_PORT_NUMBER\]|$serverPortNumber|g" -i "$defaultPageLocation" > /dev/null 2>&1
}

function GenerateStartScript()
{
    Log "Generating the Start Script..."
    
    suggestedPackageSite="$blockDiagAppDir/lib/python${pythonVersion}/site-packages"
    defaultPackageSite=`python -m site --user-site 2>/dev/null`
    
    echo -e "#!/bin/bash" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_graphvizDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_graphvizDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_libexpatDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_libexpatDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_libgdDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_libgdDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_libjpegDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_libjpegDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_libpngDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_libpngDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH=\"$DEPENDENCY_zlibDirectory/lib:\$LD_LIBRARY_PATH\"" >> "$appDirectory/start.sh"
    echo -e "export LD_LIBRARY_PATH_64=\"$DEPENDENCY_zlibDirectory/lib:\$LD_LIBRARY_PATH_64\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "if [ ! -f \"$appDirectory/dependencies.js\" ]" >> "$appDirectory/start.sh"
    echo -e "then" >> "$appDirectory/start.sh"
    echo -e "\techo \"Looks like the GraphGenerator server isn't setup properly. Please run the 'setup.sh' script to do the initial setup.\"" >> "$appDirectory/start.sh"
    echo -e "\treturn" >> "$appDirectory/start.sh"
    echo -e "fi" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "export PYTHONPATH=\"$suggestedPackageSite:$defaultPackageSite:\$PYTHONPATH\"" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "$DEPENDENCY_graphvizDirectory/bin/dot -c > /dev/null 2>&1 # Just in case" >> "$appDirectory/start.sh"
    echo -e "" >> "$appDirectory/start.sh"
    echo -e "screen -dm bash -c \"node --max-http-header-size=80000 index.js\" -S nodejs-graph-generator" >> "$appDirectory/start.sh"
    
    chmod +x "$appDirectory/start.sh"
}

function Setup()
{
    Log "* AppDirectory = '$appDirectory'"
    Log "* Dependency Directory = '$dependencyDirectory'"
    Log "* Temp Directory = '$temporaryDirectory'"
    Log ""
    
    if [ -f "$appDirectory/dependencies.js" ] && [ -f "$appDirectory/start.sh" ]
    then
        echo "Looks like the server is already setup. If you think that there is an issue with the configuration or want to reset the setup, please delete the '$appDirectory/depdendencies.js' and the '$appDirectory/start.sh' and re-run the script."
        exit 0
    fi

    CleanTempDir
    CleanDependencyDirectory
    
    AskUserConfigurations

    SetupZlib
    Log ""

    SetupLibpng
    Log ""

    SetupLibjpeg
    Log ""

    SetupLibexpat
    Log ""

    SetupLibgd
    Log ""

    SetupDot
    Log ""

    SetupPlantUml
    Log ""

    SetupMermaid
    Log ""

    SetupDitaa
    Log ""
    
    SetupBlockdiagTools
    Log ""
    
    GenerateDefaultPage
    GenerateDepedenciesJs
    GenerateStartScript
    
    echo ""
    echo "Process completed. Please use the generated 'start.sh' File to Start the GraphGenerator Server."
}

function AskUserConfigurations()
{
    GetUserInput serverHostname "Hostname or the ip address of this server"
    GetUserInput serverPortNumber "Graph-Generator port number" 3000
    GetUserConfirmation authenticatedDownloadsEnabled "The server can donwload files from remotes with basic password authentication, given that the same account details are setup accross all remotes. Would you like to setup this"
    
    if [[ "$authenticatedDownloadsEnabled" == "yes" ]]
    then
        authenticatedDownloadsEnabled="true"
        GetUserInput authenticationDetails_Username "Remote username"
        GetUserInput authenticationDetails_Password "Remote password"
    else
        authenticatedDownloadsEnabled="false"
    fi
}

function GetUserInput()
{
    promptMessage="$2"
    defaultValue=""
    allowedValues=""
    
    if [ $# -ge 3 ]
    then
        defaultValue=`echo $3 | sed 's|[ \t]||g'`
    fi
    
    if [ $# -ge 4 ]
    then
        allowedValues=`echo $4 | sed 's|[ \t]||g' | sed 's|::*|:|g'`
        
        if [[ "$allowedValues" != ":"* ]]; then allowedValues=":${allowedValues}"; fi
        if [[ "$allowedValues" != *":" ]]; then allowedValues="${allowedValues}:"; fi
    fi
    
    while true;
    do
        if [ -z "$defaultValue" ]
        then
            printf "$promptMessage : "
        else
            printf "$promptMessage [default value='$defaultValue'] : "
        fi
        
        read userInput
        
        userInput=`echo "$userInput" | sed 's|[ \t]*||g' 2>/dev/null`
        if [ -z "$userInput" ]
        then
            userInput="$defaultValue"
        fi
        
        if [ ! -z "$userInput" ] && ([ -z "$allowedValues" ] || [[ "$allowedValues" == *":${userInput}:"* ]])
        then
            eval ${1}=\$userInput
            return
        fi
        
        printf "Invalid input. Please provide a valid input. "
    done
}

function GetUserConfirmation()
{
    promptMessage="$2"
    positives=":yes:yeah:yup:yah:y:"
    negatives=":no:n:nah:"
    
    GetUserInput userInput "$promptMessage" "yes" "${positives}${negatives}"
    
    result="no"
    if [[ "$positives" == *":${userInput}:"* ]]; then result="yes"; fi
    
    eval ${1}=\$result
}

Setup