feat(cache): add explicit inputs config for cache fingerprinting

[branchseer]

Summary

• Add inputs field to task configuration for explicit cache fingerprinting
• Support glob patterns, auto-inference from fspy, negative patterns, and mixed mode
• Expand trailing / in globs to /** (e.g., "src/" → "src/**")
• Bare directory names (e.g., "src" without /) match nothing — only files are fingerprinted
• Remove fstat interception in fspy (fd was already tracked via open)
• Skip duplicate files across overlapping glob patterns via entry API

Input modes

• Explicit globs: inputs: ["src/**/*.ts"]
• Auto-inference: inputs: [{ "auto": true }]
• Negative patterns: inputs: ["src/**", "!**/*.test.ts"]
• Directory shorthand: inputs: ["src/"] (expands to "src/**")
• Mixed: inputs: ["package.json", { "auto": true }, "!dist/**"]
• Empty (no file tracking): inputs: []

Test plan

• Plan snapshot: inputs-trailing-slash verifies src/ → src/** and !dist/ → dist/**
• E2E: all input combinations (positive, negative, auto, mixed, empty)
• E2E: folder-slash-input — cache miss on direct and nested file changes, hit on outside
• E2E: folder-input — bare directory name fingerprints nothing
• E2E: glob meta chars in package paths (packages/[lib])
• E2E: cross-package .. globs in subpackages
• Unit tests: overlapping globs deduplicate, negative exclusions, sibling packages

🤖 Generated with Claude Code

[branchseer]

• feat(cache): add explicit inputs config for cache fingerprinting #104 : 2 dependent PRs (#208 , #209 ) 👈 (View in Graphite)
• feat: handle self-recursion in task planning #197
• feat: add --cache/--no-cache CLI flags to vp run #196
• main

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[Copilot]

Pull request overview

This PR adds an explicit inputs field to the task configuration for controlling cache fingerprinting. Instead of always using fspy (file system spy) to infer file dependencies, users can now specify glob patterns to explicitly declare which files should trigger cache invalidation, or use a combination of auto-inference and explicit patterns.

Changes:

• Add UserInputEntry, UserInputsConfig, and ResolvedInputConfig types for parsing and normalizing user input configuration, with support for glob patterns, auto-inference directives, and negative patterns
• Replace the monolithic SpawnTrackResult with separate std_outputs and TrackedPathAccesses to decouple output capturing from fspy tracking, and introduce PreRunFingerprint (combining spawn fingerprint + globbed inputs) as the new cache key, replacing the old SpawnFingerprint-based key
• Add glob_inputs.rs module for walking glob patterns and hashing files, with comprehensive unit tests and e2e test fixtures covering all input configuration combinations including subpackage and cross-package (..) scenarios

Reviewed changes

Copilot reviewed 137 out of 141 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
crates/vite_task_graph/src/config/user.rs	Adds UserInputEntry enum, UserInputsConfig type, inputs field to EnabledCacheConfig, and unit tests
crates/vite_task_graph/src/config/mod.rs	Adds ResolvedInputConfig with from_user_config resolution logic and unit tests
crates/vite_task_graph/run-config.ts	TypeScript type definition for the inputs field
crates/vite_task_graph/Cargo.toml	Adds bincode dependency for ResolvedInputConfig serialization
crates/vite_task_plan/src/cache_metadata.rs	Adds input_config and glob_base to CacheMetadata, removes fingerprint_ignores from SpawnFingerprint
crates/vite_task_plan/src/plan.rs	Passes package_path to plan_spawn_execution for glob resolution base
crates/vite_task/src/session/execute/glob_inputs.rs	New module for glob-based input file discovery and hashing
crates/vite_task/src/session/execute/fingerprint.rs	Updates PostRunFingerprint to use inferred_inputs with negative glob filtering
crates/vite_task/src/session/execute/spawn.rs	Splits SpawnTrackResult into TrackedPathAccesses and separate std_outputs
crates/vite_task/src/session/execute/mod.rs	Orchestrates globbed input computation, conditional fspy tracking, and updated cache operations
crates/vite_task/src/session/cache/mod.rs	Introduces PreRunFingerprint as cache key, bumps DB version to 7, updates cache hit/update logic
crates/vite_task/src/session/cache/display.rs	Removes FingerprintIgnoreAdded/Removed change variants
crates/vite_task/Cargo.toml	Replaces vite_glob with wax and path-clean, adds tempfile for tests
crates/fspy/src/unix/mod.rs	Sets FSPY=1 env when fspy tracking is enabled
crates/fspy/src/windows/mod.rs	Sets FSPY=1 env when fspy tracking is enabled
packages/tools/src/print-file.ts	Supports reading multiple files for e2e test commands
docs/inputs.md	Comprehensive documentation for the inputs configuration
crates/vite_task_bin/src/main.rs	Adds inputs: None to default EnabledCacheConfig
crates/vite_task_bin/src/lib.rs	Adds inputs: None to synthesized EnabledCacheConfig instances
E2e fixture files	Test fixtures for inputs-cache-test, glob-base-test, inputs-negative-glob-subpackage

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[branchseer]

Merge activity

• Mar 9, 1:15 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Mar 9, 1:15 AM UTC: @branchseer merged this pull request with Graphite.