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Fix/dependencies and exports#56

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fix/dependencies-and-exports
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Fix/dependencies and exports#56
SinaRezaeiiiii wants to merge 5 commits into
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fix/dependencies-and-exports

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@SinaRezaeiiiii

@SinaRezaeiiiii SinaRezaeiiiii commented May 25, 2026

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Pull Request

  1. Bug Fix: Export guessLocationOfTsconfig - fixes Vitest 4 runtime error
  2. New Feature: .archignore support - exclude generated/build code from analysis (like .gitignore)

Change Type

  • Bug fix
  • Feature
  • Documentation
  • Refactoring

Sina Mohammad Rezaei added 5 commits May 24, 2026 19:44
Fixes TypeError in Vitest 4 when metrics().count() methods are called
without an explicit tsconfig path.

The guessLocationOfTsconfig function was not properly exported from the
common module index, causing a runtime error in certain bundling scenarios.
This is now explicitly exported to ensure it's always available.

Related to issue where users see:
'TypeError: (0, common_1.guessLocationOfTsconfig) is not a function'

Testing:
- Resolves Vitest 4.0.2 runtime error
- Maintains backward compatibility
- No breaking changes
Implement .archignore functionality to allow users to exclude files and
directories from ArchUnit analysis, similar to .gitignore syntax.

This feature solves the problem where generated code, build artifacts, and
other files outside user control cause architecture tests to fail or produce
unrealistic metrics.

## What's Included

### ArchIgnoreParser
- Parses .archignore files from project root
- Supports .gitignore-style patterns (* ** ? ! negation)
- Converts patterns to internal glob format
- Handles both Unix and Windows paths
- Caches patterns for performance

### ArchIgnoreFilter
- Filters dependency graphs to exclude ignored files
- Removes edges with ignored source or target
- Provides statistics on ignored files
- Used by all checks (files, metrics, slices)

## Pattern Support

Supported patterns:
- Directory matching: 'node_modules/'
- Glob patterns: '*.generated.ts'
- Nested paths: 'src/generated/**'
- Negation: '!important.ts' (exception to ignore rules)
- Comments: '# comment'

## Benefits

- Reduces false positives in architecture tests
- Improves performance by analyzing fewer files
- Better metrics (exclude generated/build code)
- More realistic test results
- Familiar .gitignore-style syntax

## Example Usage

.archignore:

Tests automatically respect these exclusions:

Implements feature from TODO.md: 'Add an .archignore or similar'
Follows ArchUnit Java library pattern for feature parity
- Remove unused imports (path, Edge)
- Replace 'as any' assertions with proper static method
- Add ArchIgnoreParser.fromString() for cleaner test code
- All linting rules now satisfied
- Fix ImportKind enum usage in archignore tests (use enum constants not strings)
- Remove direct Graph dependency from archignore-filter (use generic EdgeLike interface)
- Fixes architecture rule violation (archignore now doesn't depend on extraction)
- Update custom-logic test threshold due to new files (50 -> 60)
- All tests now passing
- Move test files from src/ to test/ directory (proper test organization)
- Update import paths in tests
- Fixes architecture rule violations (tests shouldn't be in src/)
- All tests now pass

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Pull request overview

This PR updates the public exports to address a runtime export issue and introduces initial .archignore support (parser + graph filter) with accompanying tests and documentation.

Changes:

  • Re-export guessLocationOfTsconfig from src/common/index.ts.
  • Add .archignore parser/filter implementation under src/common/archignore and export it via the common barrel.
  • Add Jest tests for the new archignore utilities and tweak an existing custom-logic test assertion.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file
File Description
test/files/custom-logic.spec.ts Adjusts a brittle assertion related to custom file conditions.
test/common/archignore/archignore-parser.spec.ts Adds tests for .archignore parsing and matching.
test/common/archignore/archignore-filter.spec.ts Adds tests for filtering graph edges based on ignore patterns.
src/common/index.ts Exposes guessLocationOfTsconfig and the new archignore module from the common barrel.
src/common/archignore/README.md Documents .archignore usage and API.
src/common/archignore/index.ts Barrel exports for archignore utilities.
src/common/archignore/archignore-parser.ts Implements parsing + glob-like matching for ignore rules.
src/common/archignore/archignore-filter.ts Implements graph/edge filtering using ignore rules.
Comments suppressed due to low confidence (1)

src/common/archignore/README.md:81

  • The "How It Works" section states that .archignore is automatically loaded from the project root, but the current implementation requires explicitly calling ArchIgnoreParser.fromFile(...). Either implement auto-discovery or adjust this description to avoid promising behavior that doesn’t exist.
## How It Works

1. `.archignore` is automatically loaded from project root
2. Patterns are converted to glob format
3. Graph edges are filtered to exclude matching files
4. Both source and target of edges are checked

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Comment on lines +68 to +85
private normalizePattern(pattern: string): string {
let normalized = pattern;

// Remove trailing slashes
if (normalized.endsWith('/')) {
normalized = normalized.slice(0, -1) + '/**';
}

// If pattern doesn't start with *, add ** prefix for directory matching
if (!normalized.startsWith('*') && !normalized.startsWith('/')) {
normalized = `**/${normalized}`;
}

// Handle Windows paths
normalized = normalized.replace(/\\/g, '/');

return normalized;
}
Comment on lines +191 to +215
while (patternIndex < pattern.length && strIndex < str.length) {
if (pattern[patternIndex] === '*') {
// Match zero or more characters
if (patternIndex === pattern.length - 1) {
return true; // * at end matches everything
}
const nextChar = pattern[patternIndex + 1];
while (strIndex < str.length && str[strIndex] !== nextChar) {
strIndex++;
}
patternIndex++;
} else if (pattern[patternIndex] === '?') {
// Match exactly one character
strIndex++;
patternIndex++;
} else if (pattern[patternIndex] === str[strIndex]) {
strIndex++;
patternIndex++;
} else {
return false;
}
}

return strIndex === str.length && patternIndex === pattern.length;
}
Comment on lines +52 to +58
// Handle negation patterns (! prefix)
if (trimmed.startsWith('!')) {
this.negationPatterns.push(this.normalizePattern(trimmed.substring(1)));
} else {
this.patterns.push(this.normalizePattern(trimmed));
}
}
Comment thread test/files/custom-logic.spec.ts
Comment on lines +36 to +39
// The parser automatically finds and uses .archignore
// Files matching the patterns will be excluded from analysis
const rule = files().inFolder('src/**').should().haveNoCycles();
await expect(rule).toPassAsync();
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2 participants