feat: add rattler_glob as a crate

[tdejager]

Description

This adds a new crate called rattler_glob that allows globbing and hash calculations for sets of globs. We have been using this in pixi but are thinking of also using it in rattler_build. So I copied the crate and refactored it a bit with help from Claude to clean it up. I did not really change the API.

I think it's okay to go, but I put it in draft so we can take a good look at it.

[Copilot]

Pull request overview

This PR introduces a new crate called rattler_glob that provides glob pattern matching with hash computation and modification time tracking capabilities. The crate was originally developed in pixi and has been refactored and adapted for use in the rattler ecosystem, specifically for rattler_build.

Changes:

• Adds rattler_glob crate with comprehensive glob matching using gitignore-style patterns
• Implements hash computation over matched files with line-ending normalization
• Provides modification time tracking and caching for glob-based operations

Reviewed changes

Copilot reviewed 12 out of 14 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
crates/rattler_glob/Cargo.toml	New crate manifest with dependencies on ignore, rattler_digest, tokio, and other workspace crates
crates/rattler_glob/src/lib.rs	Main library entry point with comprehensive module documentation
crates/rattler_glob/src/glob_set/mod.rs	Core glob matching implementation with rebasing support
crates/rattler_glob/src/glob_set/walk_root.rs	Pattern rebasing logic for handling relative paths and computing effective walk roots
crates/rattler_glob/src/glob_set/walk.rs	Directory walking implementation with hidden folder handling
crates/rattler_glob/src/glob_hash.rs	Hash computation over matched files with line-ending normalization
crates/rattler_glob/src/glob_hash_cache.rs	Async caching layer for glob hash computations
crates/rattler_glob/src/glob_mtime.rs	Modification time tracking for matched files
tests/data/satisfiability/source-dependency/pixi.toml	Test data file for glob hash computation tests
tests/data/satisfiability/source-dependency/pixi.lock	Test data file for glob hash computation tests
crates/rattler_glob/src/snapshots/*.snap	Insta snapshot files for testing glob hash results
Cargo.lock	Updated with new ignore dependency and rattler_glob entry

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

@tdejager I've opened a new pull request, #2013, to work on those changes. Once the pull request is ready, I'll request review from you.