feat: add package.json script migration with ast-grep

[fengmk2]

TL;DR

Added AST-based migration tool for package.json scripts to help users transition to vite-plus.

What changed?

• Created a new vite_migration crate with functionality to rewrite package.json scripts using AST-grep rules
• Added AST-grep dependencies to support parsing and transforming bash scripts
• Implemented rewritePackageJsonScripts function exposed to JavaScript via NAPI
• Added YAML rules file for common script migrations (vite → vite dev, oxlint → vite lint, etc.)
• Updated the migration process to use AST-based transformation instead of simple string replacements
• Fixed template snapshots to reflect the new script transformations

How to test?

1. Create a project with package.json containing scripts like "dev": "vite" or "lint": "oxlint"
2. Run the migration tool: vp gen migration
3. Verify that scripts are properly transformed (e.g., "dev": "vite dev", "lint": "vite lint")
4. Test with complex scripts containing pipes, conditionals, and multiple commands

Why make this change?

The previous migration approach used simple string replacements which couldn't handle complex script commands. Using AST-grep provides more robust script transformations by properly parsing the bash syntax and applying targeted replacements. This ensures a smoother transition for users migrating from standalone tools to vite-plus, especially for projects with complex npm scripts.

[fengmk2]

• feat: migration config to vite.config.ts #320
• feat: add migration command for global cli #313
• feat: add package.json script migration with ast-grep #310 👈 (View in Graphite)
• chore: remove x86_64-unknown-linux-gnu-cc #316: 1 other dependent PR (#318)
• main

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[Copilot]

Pull Request Overview

This PR introduces an AST-based migration system for package.json scripts to facilitate transitioning from standalone Vite tools to the unified vite-plus package. The migration uses ast-grep with bash parsing to intelligently transform npm scripts while preserving complex command structures.

Key changes:

• Created new vite_migration Rust crate with AST-grep integration for parsing and transforming bash scripts in package.json
• Replaced simple string replacements with pattern-based rules defined in YAML (vite → vite dev, oxlint → vite lint, etc.)
• Converted migration functions to async to accommodate the Rust async operations

Reviewed Changes

Copilot reviewed 16 out of 18 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
crates/vite_migration/src/package.rs	Core migration logic implementing AST-based script rewriting with rule matching and replacement
crates/vite_migration/src/lib.rs	Module entry point exposing the rewrite_package_json_scripts function
crates/vite_migration/Cargo.toml	Declares dependencies on ast-grep crates and tokio for async file operations
packages/cli/binding/src/migration.rs	NAPI binding that exposes the Rust migration function to JavaScript
packages/cli/binding/src/lib.rs	Registers the migration module and exports the binding function
packages/cli/binding/index.js	Exports the rewritePackageJsonScripts function to JavaScript consumers
packages/cli/binding/index.d.ts	TypeScript type definitions for the new binding function
packages/global/src/gen/migration.ts	Orchestrates the migration by calling Rust binding and managing package.json updates
packages/global/src/gen/templates/monorepo.ts	Adds await to migrateToVitePlus calls to handle async migration
packages/global/rules/package-json-scripts.yml	Defines AST-grep transformation rules for common script patterns
packages/global/package.json	Includes the rules directory in published package files
packages/global/src/gen/__tests__/migration.spec.ts	Tests the end-to-end migration functionality with complex script examples
packages/global/src/gen/__tests__/__snapshots__/migration.spec.ts.snap	Expected test output showing transformed scripts
crates/vite_error/src/lib.rs	Adds error variant for ast-grep configuration errors
crates/vite_error/Cargo.toml	Adds ast-grep-config dependency for error handling
Cargo.toml	Updates workspace dependencies to include ast-grep crates and bumps vite-task revision
Cargo.lock	Lock file updates for new dependencies and revised git references

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[fengmk2]

Merge activity

• Nov 25, 11:39 AM UTC: @fengmk2 merged this pull request with Graphite.