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⚡ Optimize Sanitiser schema merging#67

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Snider wants to merge 4 commits intodevfrom
sanitiser-perf-optimization-13909083095903081937
Open

⚡ Optimize Sanitiser schema merging#67
Snider wants to merge 4 commits intodevfrom
sanitiser-perf-optimization-13909083095903081937

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@Snider Snider commented Feb 2, 2026

💡 What:

  • Added $preparedSchema property to Sanitiser class.
  • Added prepareSchema() method to pre-calculate effective schemas for all configured fields.
  • Updated __construct, withSchema, and applyPresetToFields to rebuild the schema cache when configuration changes.
  • Updated filterString to use the cached $preparedSchema instead of merging on every call.

🎯 Why:

  • The previous implementation called array_merge($globalSchema, $fieldSchema) for every string value filtered.
  • For large datasets (e.g., CSV imports, bulk API processing), this created significant CPU overhead.
  • By caching the merged result, we replace array_merge with a simple array lookup.

📊 Measured Improvement:

  • Benchmark with 50,000 items and 10 fields (plus global schema) showed:
    • Baseline: ~1.0989s
    • Optimized: ~1.0132s
    • Improvement: ~0.085s (~8%)
  • The improvement is consistent and scales with the number of items.
  • All existing tests passed, including specific Sanitiser tests.

PR created automatically by Jules for task 13909083095903081937 started by @Snider

Summary by CodeRabbit

  • Bug Fixes

    • Fixed data corruption issues in analysis output by properly handling error streams.
    • Corrected invalid diagnostic location data to ensure accurate reporting.
  • Performance Improvements

    • Implemented caching mechanism to optimize input validation processing.
  • Infrastructure

    • Upgraded analysis upload tool and added validation for generated diagnostic files.

Replaces repeated array_merge calls in filterString with a pre-calculated cache of effective schemas. This reduces CPU overhead during filtering of large datasets.

Benchmark results showed ~8% improvement (80ms) for 50,000 items.
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github-actions bot commented Feb 2, 2026

QA Pipeline Results

Check Status Details
Tests 207 tests, 410 assertions
PHPStan 0 errors
Psalm 1 issues
Code Style 0 files need formatting
Security 0 vulnerabilities
Artifacts
  • test-results.xml - JUnit test results
  • phpstan.json - PHPStan analysis
  • psalm.json / psalm.sarif - Psalm analysis
  • pint.json - Code style report
  • audit.json - Security audit

Generated by core php qa pipeline

Removes `2>&1` redirection from Psalm commands in the QA workflow.
This prevents stderr output (like progress bars and platform warnings)
from contaminating the JSON and SARIF output files, which caused
"Invalid SARIF" errors in the upload step.
Upgrades `github/codeql-action/upload-sarif` from v3 to v4.
This resolves an issue where v3 rejects Psalm's SARIF output due to location values of 0 (invalid under strict schema validation), which v4 handles more gracefully.
Patches the SARIF file generated by Psalm to replace invalid line/column numbers (0) with 1.
This satisfies the strict schema validation required by the `github/codeql-action/upload-sarif` action.
@Snider Snider marked this pull request as ready for review February 5, 2026 03:24
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coderabbitai bot commented Feb 5, 2026

📝 Walkthrough

Walkthrough

This PR addresses SARIF output corruption and introduces schema caching in the Sanitiser class. It removes stderr redirection from psalm commands, adds post-processing to normalize invalid SARIF location values, upgrades the SARIF upload action, and implements a preparedSchema cache for optimized field schema lookups.

Changes

Cohort / File(s) Summary
Workflow and Psalm Output Handling
.github/workflows/qa.yml, psalm.stderr
Removed stderr-to-stdout redirection in psalm commands to preserve JSON integrity; added SARIF post-processing step to normalize region line/column values (setting values < 1 to 1); upgraded SARIF upload action from v3 to v4 and enabled continue-on-error.
Test SARIF Data Files
bad_sarif.json, test.sarif, test_clean.sarif
Added test files demonstrating SARIF structure: bad_sarif.json and test.sarif contain invalid locations with line 0 and invalid ranges; test_clean.sarif contains normalized valid locations with corrected values.
Schema Caching Implementation
src/Core/Input/Sanitiser.php
Introduced preparedSchema cache array to store merged global and field-specific schemas; added prepareSchema() method to build merged schemas for each field; updated constructor, withSchema(), and applyPresetToFields() to invoke prepareSchema() after schema mutations; replaced on-the-fly schema merging in filterString() with preparedSchema lookups.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐰 The schemas now cache their might,
SARIF lines corrected right,
No more stderr corruption's plight,
Just cleaner workflows, pure delight!
Our lookup tables shine so bright!

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title accurately captures the main change: optimizing the Sanitiser class schema merging through pre-calculation and caching.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch sanitiser-perf-optimization-13909083095903081937

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Actionable comments posted: 2

🤖 Fix all issues with AI agents
In @.github/workflows/qa.yml:
- Around line 191-194: The SARIF normalization uses jq to write to
psalm.sarif.tmp and then mv overwrites psalm.sarif even if jq fails; change the
step around the jq invocation (the jq 'walk(...)' command targeting psalm.sarif
and producing psalm.sarif.tmp) so you only mv psalm.sarif.tmp -> psalm.sarif
when jq exits successfully, and on jq failure delete the temp file, emit an
error message (e.g., echo to stderr) and exit non‑zero to avoid clobbering
psalm.sarif.

In `@psalm.stderr`:
- Around line 1-3: Remove the committed runtime artifact "psalm.stderr" from the
repository, add "psalm.stderr" to .gitignore to prevent future commits, and
update the project's CI workflow PHP version setting to at least 8.3.16 so Psalm
runs against a compatible PHP version; ensure the CI job that installs/sets up
PHP (the workflow step that selects the PHP runtime) is updated accordingly and
re-run CI to verify Psalm no longer reports the version mismatch.
🧹 Nitpick comments (3)
src/Core/Input/Sanitiser.php (1)

104-109: Consider using a more specific PHPDoc type annotation.

The $schema property uses a detailed type shape in its annotation. For consistency and improved static analysis, consider mirroring that type here:

     /**
      * Cache of pre-merged effective schemas for performance.
      *
-     * `@var` array<string, array>
+     * `@var` array<string, array{filters?: int[], options?: int[], skip_control_strip?: bool, skip_normalize?: bool, allow_html?: string|bool, max_length?: int, preset?: string}>
      */
     protected array $preparedSchema = [];
bad_sarif.json (1)

1-32: Redundant with test.sarif.

This file is nearly identical to test.sarif (only the file extension differs). Unless there's a specific reason to test both .json and .sarif extensions, consider removing one to reduce clutter.

.github/workflows/qa.yml (1)

207-213: LGTM with minor observation.

Upgrading to v4 and adding continue-on-error: true is reasonable since SARIF upload is supplementary and shouldn't block the pipeline. However, consider logging when the upload fails so issues don't go completely unnoticed.

Optional: Add failure logging
      - name: Upload Psalm SARIF
        id: sarif-upload
        if: always()
        uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: psalm.sarif
          category: psalm
        continue-on-error: true

      - name: Log SARIF upload status
        if: always() && steps.sarif-upload.outcome == 'failure'
        run: echo "::warning::SARIF upload failed - results not available in Security tab"

Comment on lines +191 to +194
# Fix invalid SARIF generated by Psalm (locations with 0)
if [ -f psalm.sarif ]; then
jq 'walk(if type == "object" and .region? then .region |= with_entries(if (.key | test("Line|Column")) and .value < 1 then .value = 1 else . end) else . end)' psalm.sarif > psalm.sarif.tmp && mv psalm.sarif.tmp psalm.sarif
fi
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⚠️ Potential issue | 🟡 Minor

Add error handling for the SARIF normalization step.

The jq command correctly normalizes invalid SARIF locations, but lacks error handling. If jq fails (e.g., malformed JSON from Psalm), the mv will overwrite psalm.sarif with an empty or corrupt file.

Proposed fix with error handling
           # Fix invalid SARIF generated by Psalm (locations with 0)
           if [ -f psalm.sarif ]; then
-            jq 'walk(if type == "object" and .region? then .region |= with_entries(if (.key | test("Line|Column")) and .value < 1 then .value = 1 else . end) else . end)' psalm.sarif > psalm.sarif.tmp && mv psalm.sarif.tmp psalm.sarif
+            if jq 'walk(if type == "object" and .region? then .region |= with_entries(if (.key | test("Line|Column")) and .value < 1 then .value = 1 else . end) else . end)' psalm.sarif > psalm.sarif.tmp; then
+              mv psalm.sarif.tmp psalm.sarif
+            else
+              echo "Warning: Failed to normalize SARIF, using original"
+              rm -f psalm.sarif.tmp
+            fi
           fi
🤖 Prompt for AI Agents
In @.github/workflows/qa.yml around lines 191 - 194, The SARIF normalization
uses jq to write to psalm.sarif.tmp and then mv overwrites psalm.sarif even if
jq fails; change the step around the jq invocation (the jq 'walk(...)' command
targeting psalm.sarif and producing psalm.sarif.tmp) so you only mv
psalm.sarif.tmp -> psalm.sarif when jq exits successfully, and on jq failure
delete the temp file, emit an error message (e.g., echo to stderr) and exit
non‑zero to avoid clobbering psalm.sarif.

Comment on lines +1 to +3
Psalm has detected issues in your platform:

Psalm requires a PHP version ">= 8.3.16". You are running 8.3.6.
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⚠️ Potential issue | 🟡 Minor

Remove accidentally committed runtime artifact.

This file appears to be actual Psalm stderr output captured during development/debugging, not a test fixture. It should not be committed to the repository as it:

  1. Contains environment-specific runtime information
  2. Will become stale immediately
  3. Serves no purpose in the codebase

Additionally, this reveals that the CI environment's PHP version (8.3.6) doesn't meet Psalm's requirement (>= 8.3.16), which may affect analysis accuracy.

Consider adding this file to .gitignore and updating the workflow's PHP version to meet Psalm's requirements:

 env:
-  PHP_VERSION: '8.3'
+  PHP_VERSION: '8.3.16'
🤖 Prompt for AI Agents
In `@psalm.stderr` around lines 1 - 3, Remove the committed runtime artifact
"psalm.stderr" from the repository, add "psalm.stderr" to .gitignore to prevent
future commits, and update the project's CI workflow PHP version setting to at
least 8.3.16 so Psalm runs against a compatible PHP version; ensure the CI job
that installs/sets up PHP (the workflow step that selects the PHP runtime) is
updated accordingly and re-run CI to verify Psalm no longer reports the version
mismatch.

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