feat: allow extensions to supply their own phpstan config

[Lars Kemper (larskemper)]

part of shopware/shopware#20241, related shopware/github-actions#197, shopware/SwagMigrationAssistant#226

What changed?

• New validation.phpstan_config key in .shopware-extension.yml. When set, PHPStan runs with --configuration <that file> instead of the bundled config.
• The path is validated when the config is read, reusing validateRelativePath.
• The config is resolved once instead of once per source directory.
• config_schema.json regenerated.

Why?

Shopware first-party extensions cannot run their own phpstan.neon in the verifier. It includes %ShopwareRoot%/src/Core/DevOps/StaticAnalyze/PHPStan/common.neon and points phpstan-symfony at a dumped container, both of which need a booted installation. The verifier fails with Missing parameter 'ShopwareRoot'.

The workaround is rm phpstan.neon.dist in CI. That also drops phpstan-baseline.neon and every ignoreErrors entry, so the suppressions get restated in .shopware-extension.yml under validation.ignore. SwagMigrationAssistant carried 29 duplicated entries. With this key it carries none.

This does not disable the Shopware rules. phpstan/extension-installer registers shopwarelabs/phpstan-shopware through GeneratedConfig.php, which PHPStan loads whatever config file it gets. A supplied config only controls level, treatPhpDocTypesAsCertain, includes, excludePaths and ignoreErrors.

How was it tested?

• Unit tests cover the path rules in TestValidateExtensionConfig and the config selection in TestPhpStan_configArguments
• End to end against SwagMigrationAssistant with a locally built binary, running extension validate --full --check-against lowest --exclude=stylelint. Result was 0 findings, exit 0, with phpstan.neon.dist left in place.

Summary by CodeRabbit

• New Features

  • Added support for specifying a custom PHPStan configuration file for extension validation.
  • PHPStan now prioritizes the configured file, uses automatically discovered configuration when available, and otherwise falls back to the bundled configuration.

• Bug Fixes

  • Improved validation for PHPStan configuration paths, rejecting absolute paths, paths outside the extension, missing files, and directories used as configuration files.
  • Added clearer error messages identifying invalid PHPStan configuration settings.

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Reviewing files that changed from the base of the PR and between 907d51e and 6a2927a.

📒 Files selected for processing (4)

• internal/verifier/extension.go
• internal/verifier/extension_test.go
• internal/verifier/phpstan.go
• internal/verifier/phpstan_test.go

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📝 Walkthrough

Walkthrough

The extension configuration now supports an optional relative PHPStan config path. Validation checks the path, conversion passes it to ToolConfig, and PHPStan selects the configured, discovered, or bundled config.

Changes

PHPStan configuration flow

Layer / File(s)	Summary
Configuration contract and validation internal/extension/config.go, internal/extension/config_schema.json, internal/extension/config_test.go	Adds validation.phpstan_config and rejects absolute paths or paths that escape the extension root.
Tool configuration wiring internal/verifier/tool.go, internal/verifier/extension.go, internal/verifier/extension_test.go	Adds ToolConfig.PhpstanConfig and copies the extension value into it.
PHPStan argument resolution internal/verifier/phpstan.go, internal/verifier/phpstan_test.go	Resolves configured, discovered, or bundled PHPStan configuration arguments. It reports unreadable files and directories. Tests cover each resolution path.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant ExtensionConfig
  participant ToolConfig
  participant PhpStanCheck
  participant RootDir
  ExtensionConfig->>ToolConfig: copy validation.phpstan_config
  ToolConfig->>PhpStanCheck: provide PhpstanConfig
  PhpStanCheck->>RootDir: resolve and inspect config
  RootDir-->>PhpStanCheck: configured, discovered, or bundled config

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Merge Risk: 🔵 Low · up to 6a292

A custom PHPStan configuration with restricted read permissions can fail with a less actionable error. This is a narrow diagnostics issue and is mergeable with owner awareness.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 9 functions across 7 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: allowing extensions to provide their own PHPStan configuration.
Description check	✅ Passed	The description covers what changed, why it changed, and how it was tested. It also provides related issue and pull request links, although it does not use the template's explicit Related issue or dis…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[Codecov Comments Bot (codecov-commenter)]

Codecov Report

❌ Patch coverage is 59.25926% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.87%. Comparing base (8209286) to head (6a2927a).

Files with missing lines	Patch %	Lines
internal/verifier/extension.go	22.22%	7 Missing ⚠️
internal/verifier/phpstan.go	73.33%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1577      +/-   ##
==========================================
+ Coverage   64.76%   64.87%   +0.10%     
==========================================
  Files         471      471              
  Lines       31021    31038      +17     
==========================================
+ Hits        20092    20136      +44     
+ Misses      10929    10902      -27     

Flag	Coverage Δ
go-test	64.87% <59.25%> (+0.10%)	⬆️

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Actionable comments posted: 3

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Inline comments:
In `@internal/verifier/extension.go`:
- Around line 27-33: Add a direct test for ConvertExtensionToToolConfig that
configures validation.phpstan_config on the extension and asserts the resulting
ToolConfig.PhpstanConfig matches it, ensuring the conversion mapping is covered
independently of TestPhpStan_configArguments.

In `@internal/verifier/phpstan.go`:
- Around line 157-159: Update the PHPStan configuration validation before
returning the argument pair to require that the configured path is a regular,
readable file, rejecting directories and unreadable paths with the existing
contextual validation.phpstan_config error; preserve the successful path through
PhpStan.Check.
- Around line 151-170: The configArguments method currently replaces the bundled
PHPStan configuration when PhpstanConfig is set, allowing prohibited calls to
bypass validation. Update the custom-configuration path to require inclusion of
the bundled rules or generate a combined configuration, while preserving
automatic discovery and the existing fallback behavior for configurations that
do not specify a custom path.

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⚙️ Run configuration

Configuration used: Organization UI

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Run ID: bda51367-c2b6-4905-9860-b03110e6ad0a

📥 Commits

Reviewing files that changed from the base of the PR and between 8209286 and 907d51e.

📒 Files selected for processing (7)

• internal/extension/config.go
• internal/extension/config_schema.json
• internal/extension/config_test.go
• internal/verifier/extension.go
• internal/verifier/phpstan.go
• internal/verifier/phpstan_test.go
• internal/verifier/tool.go

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[Malte Janz (MalteJanz)]

Thanks for reaching out and submitting your contribution 👍 .

I would wait for some other opinions / align with my new team on how we want to move forward with this and then get back to you, likely early next week 🙂

[Malte Janz (MalteJanz)]

Nit: not sure if this struct should contain a PHPStan specific field, as it's part of the Tool interface below, means basically all tools (like PHPStan, Rector, ESLint, ...) receive the same ToolConfig struct as input.

One other idea with a much smaller changeset could also be adjusting:

shopware-cli/internal/verifier/phpstan.go

Lines 18 to 22 in 8209286

	var possiblePHPStanConfigs = []string{
	"phpstan.neon",
	"phpstan.neon.dist",
	"phpstan.dist.neon",
	}

to auto discover a "custom / SW CLI specific" phpstan config first (e.g. your phpstan-verifier.neon) before looking for the default phpstan config, but that would also feel like a workaround 😬 .

I think all the other tools currently all rely on either auto discovery of their specific config or use a bundled one, so this use case would be new and we might want to consider allowing overriding the used config files for all tools then, having it as a proper feature (I guess we have to discuss that team internally if we want to support that) 🤔

[Soner (shyim)]

For me it sounds like we need an pre validation hook point which runs a script which generates the container.xml? This looks like an workaround 😅

[Lars Kemper (larskemper)]

For me it sounds like we need an pre validation hook point which runs a script which generates the container.xml? This looks like an workaround 😅

Soner (@shyim)

wasn't aware of the hook patten 😄

container.xml isn't the whole blocker though. Our phpstan.neon.dist also does include: %ShopwareRoot%/src/Core/DevOps/StaticAnalyze/PHPStan/common.neon. Since it's the shopware/core package, the verifier installs it to vendor/shopware/core/DevOps/... there's no <root>/src/Core, so no substitution of %ShopwareRoot% resolves. Making the real config run under the verifier means rewriting the dist file, not just dumping a container.

If you want the hook:

• it has to run after installComposerDeps (no autoloader before)
• should it be skipped by --store-compliance?

happy to convert it to hooks if that's the direction you want.

[Soner (shyim)]

So my suggestion would be #1588 + you use %env.SHOPWARE_CORE_ROOT% for the paths. 🤔

[somethings (lasomethingsomething)]

Lars Kemper (@larskemper) In light of Soner (@shyim)'s previous comment, would you adapt this to suit his proposal? Let us know if you have time for that change. Otherwise, we would close this.

[Lars Kemper (larskemper)]

Lars Kemper (Lars Kemper (@larskemper)) In light of Soner (Soner (@shyim))'s previous comment, would you adapt this to suit his proposal? Let us know if you have time for that change. Otherwise, we would close this.

somethings (@lasomethingsomething) yes, I'd like to adapt this to fit Soner's proposal. I'm short on time right now, so I'll probably need until next week to get it done. I'll push an update as soon as it's ready, and I'll let you know.