PHP Warning on startup when using Infection from PHAR

[sebastianbergmann]

I am using Infection in a project that has a composer.json file as well as a vendor/autoload.php file but no vendor/composer/InstalledVersions.php file since no dependencies are defined in composer.json:

$ ./tools/infection --version
PHP Warning:  include(/path/to/project/vendor/composer/../composer/InstalledVersions.php): Failed to open stream: No such file or directory in phar:///path/to/project/tools/infection/.box/vendor/composer/ClassLoader.php on line 571
PHP Warning:  include(): Failed opening '/path/to/project/vendor/composer/../composer/InstalledVersions.php' for inclusion (include_path='.:/usr/share/pear:/usr/share/php:/usr/share/pear:/usr/share/php') in phar:///path/to/project/tools/infection/.box/vendor/composer/ClassLoader.php on line 571
Infection - PHP Mutation Testing Framework version 0.26.16

It appears that Infection assumes that vendor/composer/InstalledVersions.php always exists and unconditionally tries to open it.

[sanmai]

Did you purposefully remove vendor/composer/InstalledVersions.php?

I see that Composer autoloader will try to open this file if you remove it. Even a simple class_exists() triggers this.

[sebastianbergmann]

No, I did/do not delete this file on purpose.

I use classmap-based autoloading (generated by Composer) and have no Composer-installed dependencies:

$ cat composer.json
{
    "name": "example/example",
    "description": "example",
    "license": "proprietary",

    "config": {
        "platform": {
            "php": "8.2.0"
        },
        "optimize-autoloader": true,
        "sort-packages": true
    },

    "autoload": {
        "classmap": [
            "src/"
        ]
    }
}

$ composer dump-autoload
Generating optimized autoload files
Generated optimized autoload files containing 16 classes

$ tree vendor 
vendor
├── autoload.php
└── composer
    ├── autoload_classmap.php
    ├── autoload_namespaces.php
    ├── autoload_psr4.php
    ├── autoload_real.php
    ├── autoload_static.php
    ├── ClassLoader.php
    └── LICENSE

1 directory, 8 files

[theofidry]

Interesting... I'll have to double on PHP-Scoper/Box side that I do handle this scenario well too.

[sanmai]

I don't think we fixed the issue with #1771, therefore I'm going to reopen this. If that's not the case, please feel free to close, or add any details as well.