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https://github.com/oven-sh/bun
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ae6437ecfc
Implements pnpm-compatible path: syntax for installing from git repository subdirectories. This enables efficient monorepo support by only downloading the required subdirectory using Git 2.25+ sparse checkout features. Syntax: - github:user/repo#path:/packages/foo - user/repo#branch&path:/packages/bar - git+https://github.com/user/repo.git#commit&path:subdir Features: - Modern sparse checkout with cone mode for O(1) performance - Subdirectory path normalized once during parsing (no leading slash) - Uses stack buffers (PathBuffer) to avoid allocations in hot path - Atomic directory restructuring with proper error handling - Cache isolation with subdirectory hash - Works with both regular and isolated installs - Comprehensive tests with .d.ts file verification Implementation details: - Added subdirectory field to Repository struct - Normalize subdirectory path during dependency parsing (strip leading /) - Tag.infer checks for path: parameter early to route to git (not GitHub API) - Sparse checkout restructures directory atomically using temp location - Tests verify actual package files, no flaky timing-based checks Files modified: - src/install/repository.zig - Core sparse checkout + atomic restructuring - src/install/dependency.zig - Parsing with normalization + Tag.infer fixes - src/install/PackageManager/PackageManagerDirectories.zig - Cache naming - src/install/PackageManagerTask.zig - Task handling - src/install/PackageManager/PackageManagerEnqueue.zig - Task queueing - src/install/PackageManager/runTasks.zig - Task execution - test/cli/install/git-sparse-checkout.test.ts - Comprehensive tests (new) Tests: 6 passing, 42 expect() calls, 7.89s 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>