We sometimes need to import user-secrets from one project to another, especially in the same solution. Though it may be not a good practice, requirements are requirements.

import-user-secrets.php

#!/usr/bin/php
<?php
if (sizeof($_SERVER['argv']) != 3) {
    exit("Usage: {$_SERVER['argv'][0]} from_project_path to_project_path"); 
}

$pwd = getcwd();
if (!chdir($_SERVER['argv'][1])) {
    exit("cd {$_SERVER['argv'][1]} failed");
}

$secrets_list = `dotnet user-secrets list`;
if ($secrets_list == '') {
    exit("No secrets found in source project.");
}

if (!chdir($pwd)) {
    exit("cd $pwd failed");
}

if (!chdir($_SERVER['argv'][2])) {
    exit("cd {$_SERVER['argv'][2]} failed");
}

$secrets_list = preg_split('/\r?\n/', $secrets_list);
foreach($secrets_list as $line) {
    if (!trim($line)) {
        continue;
    }
    $line = explode(' = ', $line);
    `dotnet user-secrets set $line[0] $line[1]`;
}

echo "success!\n";