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chore: bump version to 1.0.22 and add Windows path handling tests
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‎.github/workflows/windows-test.yml‎

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name: Windows Path Fix Test
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on:
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push:
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branches: [main, develop]
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pull_request:
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branches: [main, develop]
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jobs:
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test-windows:
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name: Test Windows Path Handling
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runs-on: windows-latest
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strategy:
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matrix:
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node-version: [18, 20]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Setup Node.js ${{ matrix.node-version }}
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uses: actions/setup-node@v4
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with:
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node-version: ${{ matrix.node-version }}
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cache: "npm"
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- name: Install pnpm
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uses: pnpm/action-setup@v2
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with:
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version: latest
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- name: Install dependencies
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run: pnpm install
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- name: Build package
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run: pnpm build
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- name: Test on Windows
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run: pnpm test
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- name: Test baseurl functionality
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run: pnpm test:baseurl
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- name: Verify no backslashes in output
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run: |
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echo "Checking for backslashes in generated files..."
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$backslashFound = $false
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# Check all .mjs and .cjs files for backslashes in import statements
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Get-ChildItem -Path "test/dist" -Recurse -Include "*.mjs", "*.cjs" | ForEach-Object {
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$content = Get-Content $_.FullName -Raw
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if ($content -match 'from\s+["\''][^"\''\\]*\\[^"\''\\]*["\']') {
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Write-Host "❌ Backslashes found in $($_.Name): $($matches[0])"
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$backslashFound = $true
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}
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if ($content -match 'require\s*\(\s*["\''][^"\''\\]*\\[^"\''\\]*["\']') {
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Write-Host "❌ Backslashes found in $($_.Name): $($matches[0])"
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$backslashFound = $true
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}
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}
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if ($backslashFound) {
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Write-Host "❌ Backslashes detected in import statements"
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exit 1
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} else {
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Write-Host "✅ No backslashes found in import statements"
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}
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- name: Upload test artifacts
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uses: actions/upload-artifact@v4
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if: always()
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with:
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name: windows-test-output-${{ matrix.node-version }}
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path: |
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test/dist/
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test-baseurl/dist/
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retention-days: 7
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test-cross-platform:
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name: Test Cross-Platform Compatibility
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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os: [ubuntu-latest, macos-latest, windows-latest]
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node-version: [18, 20]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Setup Node.js ${{ matrix.node-version }}
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uses: actions/setup-node@v4
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with:
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node-version: ${{ matrix.node-version }}
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cache: "npm"
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- name: Install pnpm
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uses: pnpm/action-setup@v2
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with:
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version: latest
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- name: Install dependencies
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run: pnpm install
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- name: Build package
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run: pnpm build
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- name: Run tests
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run: pnpm test
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- name: Verify output consistency
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run: |
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echo "Verifying output consistency across platforms..."
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# This step ensures that the plugin produces consistent output
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# regardless of the platform it's running on
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if [ "$RUNNER_OS" = "Windows" ]; then
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echo "Running on Windows - checking for proper path normalization"
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# Additional Windows-specific checks could go here
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fi

‎WINDOWS_PATH_FIX.md‎

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# Windows Path Fix
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## Overview
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This document describes the Windows path separator fix implemented in `esbuild-fix-imports-plugin` to ensure cross-platform compatibility.
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## Problem
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When building on Windows, Node.js path operations (like `path.relative`, `path.join`) return Windows backslashes (`\`). These backslashes were being inserted directly into import specifiers in the generated output files, causing module loading to fail in ESM/CJS environments.
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### Example of the Issue
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**Before the fix (Windows):**
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```javascript
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// Generated output contained:
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import { data } from "..\utils\foo";
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require("..\\utils\\foo");
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```
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**After the fix:**
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```javascript
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// All output now uses POSIX separators:
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import { data } from "../utils/foo";
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require("../utils/foo");
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```
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## Root Cause
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1. **Node.js path functions**: `path.relative()`, `path.join()`, etc. return `\\` on Windows
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2. **Direct insertion**: These strings were inserted directly into import/require statements
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3. **ESM/CJS requirement**: Import specifiers must use POSIX separators (`/`) regardless of platform
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## Solution
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### POSIX Normalization Helpers
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Three utility functions were added to `src/fixAliasPlugin.ts`:
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```typescript
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/**
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* Converts Windows backslashes to POSIX forward slashes
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*/
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const toPosix = (p: string) => p.replace(/\\/g, "/");
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/**
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* Normalizes import paths by converting to POSIX and cleaning up redundant segments
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*/
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const normalizeImportPath = (p: string) =>
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toPosix(p)
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.replace(/\/\.\//g, "/")
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.replace(/(^|[^:])\/\/+/g, "$1/");
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/**
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* Ensures relative imports have proper ./ or ../ prefix
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*/
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const ensureDotRelative = (p: string) => {
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if (p.startsWith("./") || p.startsWith("../")) {
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return p;
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}
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if (p.startsWith("/")) {
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return `.${p}`;
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}
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return `./${p}`;
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};
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```
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### Updated Functions
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1. **`getPathWithoutExtension`**: Now returns POSIX-normalized paths
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2. **Entry file matching**: Uses POSIX normalization for consistent comparison
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3. **`cleanPath`**: Replaced with `normalizeImportPath` for better normalization
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4. **`replaceAliasInPath`**: All import specifier construction now uses POSIX normalization
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## Testing
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### Automated Tests
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The fix includes comprehensive tests to verify Windows path handling:
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- **`test/src/windows-path-test.ts`**: Basic Windows path functionality
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- **`test/src/windows-simulation-test.ts`**: Simulates various Windows path scenarios
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- **`test/src/backslash-detector.ts`**: Detects any remaining backslashes
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### Manual Testing
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Run the comprehensive Windows path test:
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```bash
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node test-windows-comprehensive.js
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```
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This script tests:
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- Windows-style relative paths (`..\utils\foo`)
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- Mixed separators (`..\utils/foo`)
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- Redundant path segments (`..\utils\.\foo`)
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- Absolute paths (`C:\project\src\utils\foo`)
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- Complex nested paths
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- Edge cases
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### CI/CD Testing
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GitHub Actions workflow (`.github/workflows/windows-test.yml`) includes:
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- **Windows-specific testing**: Runs on `windows-latest` runners
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- **Cross-platform validation**: Tests on Ubuntu, macOS, and Windows
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- **Backslash detection**: PowerShell script to verify no backslashes in output
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- **Artifact preservation**: Saves test outputs for inspection
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## Verification
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### Build Output Inspection
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After building, verify that all generated files use POSIX separators:
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```bash
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# Check for any remaining backslashes in import statements
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grep -r "from.*\\\\" test/dist/ || echo "✅ No backslashes in ESM imports"
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grep -r "require.*\\\\" test/dist/ || echo "✅ No backslashes in CJS requires"
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```
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### Runtime Testing
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The plugin's output should work correctly on all platforms:
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```bash
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# Test ESM output
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node test/dist/esm/index.mjs
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# Test CJS output
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node test/dist/cjs/index.cjs
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```
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## Benefits
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1. **Cross-platform compatibility**: Works consistently on Windows, macOS, and Linux
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2. **ESM/CJS compliance**: All import specifiers use valid POSIX separators
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3. **Module loading reliability**: No more import failures due to backslashes
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4. **Maintainability**: Centralized path normalization logic
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## Migration
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### For Existing Users
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No breaking changes - the fix is backward compatible and improves reliability.
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### For Contributors
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When adding new path manipulation logic:
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1. **Always use POSIX helpers**: Use `toPosix()`, `normalizeImportPath()`, `ensureDotRelative()`
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2. **Test on Windows**: Ensure CI includes Windows testing
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3. **Avoid direct path insertion**: Never insert Node.js path results directly into import specifiers
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## Related Issues
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- Fixes import specifier generation on Windows
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- Ensures consistent output across platforms
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- Maintains compatibility with existing alias configurations
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- Preserves all existing plugin functionality

‎package.json‎

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{
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"name": "esbuild-fix-imports-plugin",
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"version": "1.0.21",
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"version": "1.0.22",
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"description": "An ESBuild plugin that fixes import paths by applying fixAliasPlugin, fixFolderImportsPlugin, and fixExtensionsPlugin. It ensures correct file extensions, resolves path aliases, and fixes directory imports in your build output when using 'tsup' with 'bundle: false'. Includes comprehensive tests for all plugin features including alias resolution, folder imports, extension handling, and nested module imports.",
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"scripts": {
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"build": "pnpm build:package & pnpm build:types",

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