[Webkit-unassigned] [Bug 189822] Updating file on perf dashboard should be transactional between Apache and php

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189822

Ryosuke Niwa <rniwa at webkit.org> changed:

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--- Comment #2 from Ryosuke Niwa <rniwa at webkit.org> ---
Comment on attachment 350341
  --> https://bugs.webkit.org/attachment.cgi?id=350341
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=350341&action=review

r-. There are enough problems in this patch that I'd like to see another iteration.

> Websites/perf.webkit.org/ChangeLog:3
> +        Updating file on perf-safari should be transactional between php and apache.

We shouldn't mention perf-safari. I've updated the bug title. Please update the change log as well.

> Websites/perf.webkit.org/public/api/measurement-set.php:41
> +    $json = NULL;

Please declare these variables inside the loop.
Also, there is no point in declaring $json.

> Websites/perf.webkit.org/public/api/measurement-set.php:55
> +        $content['elapsedTime'] = $elapsed_time;
> +        $json = json_encode($content);
> +        generate_json_data_conditionally($cache_filename, $json, 'elapsedTime');

I don't think we want to rely on elapsedTime being the last item like this.
Pass in $elapsed_time as the last argument to generate_json_data_conditionally instead:
generate_json_data_conditionally($cache_filename, $content, $elapsed_time);
It's better to invoke json_encode in generate_json_data_conditionally instead.
Also, we should probably call this generate_json_data_if_needed to match the naming convention used elsewhere in WebKit.

> Websites/perf.webkit.org/public/include/db.php:65
> +    $target_file_path = config_path('dataDirectory', $filename);
> +    $temp_file_path = tempnam(config_path('dataDirectory', ''), $filename . '-temp-');

Why do we need to make a temporary file before comparing the content?

> Websites/perf.webkit.org/public/include/json-header.php:17
> +function set_success(&$details = array()) {

This should be set_successful instead.

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