Use the Magento 2 profiler in CLI

Question

In Magento 2 the profiler can easily be turned on with an environment variable

SetEnv MAGE_PROFILER [output]

with [output] one of "html", "firebug", or "csvfile"

Now if I want to profile a CLI script, i.e. a bin/magento command, this does not work. Of course, the "firebug" and "html" output formats do not make much sense, but "csvfile" does, which writes the profile result in var/log/profiler.csv.

I tried

MAGE_PROFILER=csvfile bin/magento

to no avail.

I found this code in app/bootstrap.php that checks for the MAGE_PROFILER environment variable:

if (!empty($_SERVER['MAGE_PROFILER'])
    && isset($_SERVER['HTTP_ACCEPT'])
    && strpos($_SERVER['HTTP_ACCEPT'], 'text/html') !== false
) {
    \Magento\Framework\Profiler::applyConfig(
        $_SERVER['MAGE_PROFILER'],
        BP,
        !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'
    );
}

And apparently it only activates the profiler for HTTP requests (excluding AJAX request)

This works:

HTTP_ACCEPT="text/html" MAGE_PROFILER=csvfile bin/magento

But it's a mere workaround. Is there another, more standard way to profile CLI calls?

Answer 1

Is there another, more standard way to profile CLI calls?

Apparently not, so I'll add my workaround as an answer:

HTTP_ACCEPT="text/html" MAGE_PROFILER=csvfile bin/magento