It is known that composer update takes a lot of memory: #5915, #5902,
I am playing with a profiler (@blackfireio) to make a demo in my local
PHP meetup (@phpvigo) and I found out a way to use less memory. These
are my first tests:
* Private project using PHP 5.6:
* Memory: from 1.31GB to 1.07GB
* Wall Time: from 2min 8s to 1min 33s
* symfony-demo using PHP 7.1 in my old mac book:
* Memory: from 667MB to 523MB
* Wall Time: from 5min 29s to 5min 28s
Not use an array inside conflict rules is this improvement main idea:
```php
<?php
//Memory 38MB
gc_collect_cycles();
gc_disable();
class Rule
{
public $literals;
public function __construct(array $literals)
{
$this->literals = $literals;
}
}
$rules = array();
$i = 0;
while ($i<80000){ //
$i++;
$array = array(-$i, $i);
$rule = new Rule($array);
$rules[] = $rule;
}
```
```php
<?php
//Memory 11.1MB
gc_collect_cycles();
gc_disable();
class Rule2Literals
{
public $literal1;
public $literal2;
public function __construct($literal1, $literal2)
{
$this->literal1 = $literal1;
$this->literal2 = $literal2;
}
}
$rules = array();
$i = 0;
while ($i<80000){ //
$i++;
$rule = new ConflictRule(-$i, $i);
$rules[] = $rule;
}
```
More info https://github.com/composer/composer/pull/6168
- Revert deletion of generateSshUrl() as this is needed when falling back on the GitDriver or HgDriver.
- Implement clean way to fallback from BitbucketDriver to GitDriver or HgDriver after previous changes.
- Implement fallback in HgBitbucketDriver like in GitBitbucketDriver.
The former implementation used the 'src' endpoint which returned some meta data as well.
This has been replaced with the 'raw' endpoint which does not return the meta data and does not need an extra JSON decode step.
Alexander Schwenn
Jordi Boggiano
janczer
Aleksei Khudiakov
Nils Adermann
rubenrua
Christian Schnegelberger
Stefan Grootscholten
Pieter Frenssen
David Zuelke
Kael Shipman
vlakoff
Yanick Witschi
Ed Reel