Runserver can't find runserver-prepend.php when using Phar

[dustinleblanc]

Since my latest install of drush via the phar file I am no longer able to start a development server from drush as I get this error anytime a request comes in:

[Mon Mar 21 12:02:30 2016] PHP Fatal error:  Unknown: Failed opening required 'phar:///usr/local/bin/drush/commands/runserver/runserver-prepend.php' (include_path='.:') in Unknown on line 0

Installation via composer seems to be happy as a clam. For the time being, it looks like I will use drush via composer global require drush/drush but I know that somewhere down the road I will likely run into a problem (as I did having Drush and the Laravel installer living side-by-side in my home .composer dir). Any ideas why the phar file is having an issue loading the server prepend file?

[weitzman]

I'm seeing a similar error even when not using the phar. Hope someone can debug this.

Warning: include(): Failed opening 'index.php' for inclusion (include_path='.:/Applications/Dev Desktop/common/pear:/usr/lib/php') in /Users/moshe.weitzman/c/h/drush/commands/runserver/d8-rs-router.php on line 36

[weitzman]

I just fixed my error which is in a different file than yours. Perhaps you can try the unstable phar and see if your error is now fixed. Save http://files.drush.org/drush-unstable.phar to your host and give it a try.

[greg-1-anderson]

This came up on Drupal Stack Exchange: http://drupal.stackexchange.com/questions/197480/drush-8-raises-an-error-while-running-drush-runserver

[athompso]

Works fine as long as a matching file with the .phar extension exists.
So if I wget drush-unstable, for example, and move it to /usr/local/bin/drush, runserver fails.
But if I move it to /usr/local/bin/drush.phar and symlink drush.phar to drush, then it all works great with or without composer.

I don't see anything in the PHP Phar docs that says the filename has to end in ".phar" (in fact there are examples suggesting otherwise), but given the normal state of PHP docs that doesn't surprise me.

[greg-1-anderson]

@athompso: Thanks for diagnosing that and finding the workaround. I think it might be better if we explicitly check to see that we are running from a .phar, and, if so, copy the prepend file out to a real file in the filesystem, so the .phar name and location do not have to be so exacting.

[weitzman]

Not sure its related, but once I rename drush.phar to drush, I get a fatal error. I can rename it to other names even ones without a .phar extension and I get success. Only drush fails. This sounds like an opcache problem as per http://php.net/manual/en/phar.mapphar.php#113377. However, setting opcache.enable_cli=0 in php.ini did not help.

Here is the actual error:

~/tmp/tmp2 $ ./drush st
PHP Warning:  Phar::mapPhar(/Users/moshe.weitzman/tmp/tmp2/drush): failed to open stream: Too many open files in /Users/moshe.weitzman/tmp/tmp2/drush on line 9
PHP Stack trace:
PHP   1. {main}() /Users/moshe.weitzman/tmp/tmp2/drush:0
PHP   2. Phar::mapPhar() /Users/moshe.weitzman/tmp/tmp2/drush:9

Warning: Phar::mapPhar(/Users/moshe.weitzman/tmp/tmp2/drush): failed to open stream: Too many open files in /Users/moshe.weitzman/tmp/tmp2/drush on line 9

Call Stack:
    0.0029     125820   1. {main}() /Users/moshe.weitzman/tmp/tmp2/drush:0
    0.0030     125896   2. Phar::mapPhar() /Users/moshe.weitzman/tmp/tmp2/drush:9

PHP Fatal error:  Uncaught exception 'PharException' with message 'unable to open phar for reading "/Users/moshe.weitzman/tmp/tmp2/drush"' in /Users/moshe.weitzman/tmp/tmp2/drush:9
Stack trace:
#0 /Users/moshe.weitzman/tmp/tmp2/drush(9): Phar::mapPhar('drush.phar')
#1 {main}
  thrown in /Users/moshe.weitzman/tmp/tmp2/drush on line 9

Fatal error: Uncaught exception 'PharException' with message 'unable to open phar for reading "/Users/moshe.weitzman/tmp/tmp2/drush"' in /Users/moshe.weitzman/tmp/tmp2/drush on line 9

PharException: unable to open phar for reading "/Users/moshe.weitzman/tmp/tmp2/drush" in /Users/moshe.weitzman/tmp/tmp2/drush on line 9

Call Stack:
    0.0029     125820   1. {main}() /Users/moshe.weitzman/tmp/tmp2/drush:0
    0.0030     125896   2. Phar::mapPhar() /Users/moshe.weitzman/tmp/tmp2/drush:9

[weitzman]

My problem was using an older version of xdebug. I tried with PHP7 and no xdebug and no more Too many files error. But I'm still seeing errors under the conditions described above. Hopefully someone else can help reproduce and fix this.

[jhedstrom]

I'm getting this fatal error in 8.1.0 since this went in when running runserver:

Error: Class 'Drush' not found in drush_core_runserver() (line 140 of /path/drush/commands/runserver/runserver.drush.inc).

[greg-1-anderson]

Haven't tried to reproduce @jhedstrom's problem, but this sort of message can often happen if you git checkout between different versions of Drush without running composer install. Also, I think @weitzman said that he recently fixed a runserver bug, so ensure you have the very latest HEAD.