Azure functions v1 -> v2 for Node.js applications for MacOSX

azure-func-migrate-node

#!/bin/bash

show_help () {
    cat <<EOF
Run "npm -g install azure-functions-core-tools" first.
EOF
    exit;
}

list_required_extensions () {
    grep '"type"' */function.json | 
    awk '{print($3);}' | 
    sed 's/",//g; s/"//g; s/Trigger//g;' | 
    sort | uniq |
    awk '
        {t[$1]=1;} 
        END {
            if (t["queue"] || t["table"] || t["blob"]) { print("Microsoft.Azure.WebJobs.Extensions.Storage 3.*") }
            if (t["eventGrid"])  { print("Microsoft.Azure.WebJobs.Extensions.EventGrid 2.*"); }
            if (t["eventHub"])   { print("Microsoft.Azure.WebJobs.Extensions.EventHubs 3.*"); }
            if (t["documentDB"]) { print("Microsoft.Azure.WebJobs.Extensions.CosmosDB 3.*"); }
            if (t["sendGrid"])   { print("Microsoft.Azure.WebJobs.Extensions.SendGrid 3.*"); }
            if (t["serviceBus"]) { print("Microsoft.Azure.WebJobs.Extensions.ServiceBus 3.*"); }
            if (t["twilioSms"])  { print("Microsoft.Azure.WebJobs.Extensions.Twilio 3.*"); }
        }
    '
}

install_extensions () {
    cat - | awk '
    {
        if ($1 ~ /\.CosmosDB$/) {
            system("sed -i \"\" \"s/\\\"type\\\": \\\"documentDB/\\\"type\\\": \\\"cosmosDB/g; s/\\\"connection\\\"/\\\"connectionStringSetting\\\"/g;\" */function.json");
        }
        system("func extensions install --package "$1" --version "$2);
    }
    '
}

upgrade_host_runtime_version () {
    sed -i '' -e '/"version"\:/d; 2i\
    \ \ \ \ "version": "2.0",' host.json
}

FUNC_PATH=`which func`

if [ -z $FUNC_PATH ]; then
    show_help
fi

func init --worker-runtime=node && 
list_required_extensions | install_extensions

upgrade_host_runtime_version