Bash JSON Enrolment snippet

gettin_values.sh

#!/bin/bash

echo_logger() {
    log_folder="${log_folder:=/private/var/log}"
    log_name="${log_name:=log.log}"

    mkdir -p $log_folder

    echo -e "$(date) - $1" | tee -a $log_folder/$log_name
}

dialog_update() {
    echo_logger "DIALOG: $1"
    echo "$1" >> "$dialog_command_file"
}

get_json_value() {
    JSON="$1" osascript -l 'JavaScript' \
        -e 'const env = $.NSProcessInfo.processInfo.environment.objectForKey("JSON").js' \
        -e "JSON.parse(env).$2"
}

run_jamf_trigger() {
    trigger="$1"
    if [ "$trigger" == "recon" ]; then
        echo_logger "RUNNING: $jamf_binary $trigger"
        "$jamf_binary" "$trigger"
    else
        echo_logger "RUNNING: $jamf_binary policy -event $trigger"
        "$jamf_binary" policy -event "$trigger"
    fi
}

policy_array=('
{
    "steps": [
        {
            "listitem": "Installing management tools...",
            "icon": "SF=terminal,colour1=#007DBA,colour2=#0064A1,weight=medium",
            "trigger_list": [
                {
                    "trigger": "install-Python",
                    "path": "/usr/local/bin/managed_python3"
                },
                {
                    "trigger": "install-Nudge",
                    "path": "/Applications/Utilities/Nudge.app/Contents/Info.plist"
                },
                {
                    "trigger": "install-Outset",
                    "path": "/usr/local/outset/outset"
                }
            ]
        }
    ]
}
')

for (( i=0; i<dialog_step_length; i++ )); do
    # Creating initial variables
    listitem=$(get_json_value "${policy_array[*]}" "steps[$i].listitem")
    icon=$(get_json_value "${policy_array[*]}" "steps[$i].icon")
    trigger_list_length=$(get_json_value "${policy_array[*]}" "steps[$i].trigger_list.length")

    # If there's a value in the variable, update running swiftDialog
    if [[ -n "$listitem" ]]; then dialog_update "listitem: $listitem: wait"; fi
    if [[ -n "$icon" ]]; then dialog_update "icon: $icon"; fi
    if [[ -n "$trigger_list_length" ]]; then
        for (( j=0; j<trigger_list_length; j++ )); do
            # Setting variables within the trigger_list
            trigger=$(get_json_value "${policy_array[*]}" "steps[$i].trigger_list[$j].trigger")
            path=$(get_json_value "${policy_array[*]}" "steps[$i].trigger_list[$j].path")

            # If the path variable has a value, check if that path exists on disk
            if [[ -f "$path" ]]; then
                echo_logger "$path exists, moving on"
            else
                run_jamf_trigger "$trigger"
            fi
        done
    fi
    if [[ -n "$listitem" ]]; then dialog_update "listitem: $listitem: ✅"; fi
done