git clone process does not respect ~/.composer/config.json or COMPOSER_PROCESS_TIMEOUT

[sethfischer]

The git clone process does not respect ~/.composer/config.json or
environment variable COMPOSER_PROCESS_TIMEOUT. Time-out is fixed at 300s.

300s is the default value in class ProcessExecutor.

class ProcessExecutor
{
    protected static $timeout = 300;

    protected $captureOutput;

Changing the default value of ProcessExecutor->timeout to a high value allows
the successful execution of the commands below.

Composer and php versions:

$ composer --version
Composer version 1.0-dev (921b3a0eba139820716f7aeefb553197c14656d8) 2015-04-15 18:27:04
$ php --version
PHP 5.4.39-0+deb7u2 (cli) (built: Mar 25 2015 08:33:29) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies

Global config process-timeout set to 100000s.

$ cat ~/.composer/config.json 
{
    "config": {
        "process-timeout": 100000}
}

The git clone process times-out after 300s.

$ time composer create-project drupal/drupal drupal 8.0.*@dev
Installing drupal/drupal (8.0.x-dev cbc03163b937bd6c5de70ed88cee062286680431)
  - Installing drupal/drupal (8.0.x-dev cbc0316)
    Cloning cbc03163b937bd6c5de70ed88cee062286680431

  [Symfony\Component\Process\Exception\ProcessTimedOutException]               
  The process "git clone --no-checkout 'http://git.drupal.org/project/drupal.  
  git' 'drupal/' && cd 'drupal/' && git remote add composer 'http://git.drupa  
  l.org/project/drupal.git' && git fetch composer" exceeded the timeout of 30  
  0 seconds.                                                                   

create-project [-s|--stability="..."] [--prefer-source] [--prefer-dist] [--repository-url="..."] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs] [--no-install] [--ignore-platform-reqs] [package] [directory] [version]

real    6m15.607s
user    0m1.136s
sys 0m0.116s

Set environment variable COMPOSER_PROCESS_TIMEOUT to 100000s. The git clone
process times-out after 300s.

$ export COMPOSER_PROCESS_TIMEOUT=100000
$ echo $COMPOSER_PROCESS_TIMEOUT100000
$ time composer create-project drupal/drupal drupal 8.0.*@dev
Installing drupal/drupal (8.0.x-dev cbc03163b937bd6c5de70ed88cee062286680431)
  - Installing drupal/drupal (8.0.x-dev cbc0316)
    Cloning cbc03163b937bd6c5de70ed88cee062286680431

  [Symfony\Component\Process\Exception\ProcessTimedOutException]               
  The process "git clone --no-checkout 'http://git.drupal.org/project/drupal.  
  git' 'drupal/' && cd 'drupal/' && git remote add composer 'http://git.drupa  
  l.org/project/drupal.git' && git fetch composer" exceeded the timeout of 30  
  0 seconds.                                                                   

create-project [-s|--stability="..."] [--prefer-source] [--prefer-dist] [--repository-url="..."] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs] [--no-install] [--ignore-platform-reqs] [package] [directory] [version]

real    5m22.282s
user    0m0.988s
sys 0m0.116s

The command was successfully executed by modifying the following line:

class ProcessExecutor
{
    protected static $timeout = 100000; # replaced 300 with a high value

    protected $captureOutput;

Output with above modification:

$ time ~/projects/composer/bin/composer create-project drupal/drupal drupal 8.0.*@dev
Installing drupal/drupal (8.0.x-dev cbc03163b937bd6c5de70ed88cee062286680431)
  - Installing drupal/drupal (8.0.x-dev cbc0316)
    Cloning cbc03163b937bd6c5de70ed88cee062286680431

Created project in drupal
Loading composer repositories with package information
Installing dependencies (including require-dev)
  # ...
Writing lock file
Generating autoload files
Do you want to remove the existing VCS (.git, .svn..) history? [Y,n]? y

real    17m43.599s
user    0m29.718s
sys 0m9.485s

[alcohol]

Hrm, you sure the config setting did not help?

This is the only place I could find it being used:
https://github.com/composer/composer/blob/master/src/Composer/Factory.php#L254

I'll have a PR available in a minute regardless.