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Git3 Compat + gix speedup for GitPython - #2274

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Byron wants to merge 81 commits into

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gix-backend

Commits on Oct 9, 2026
- feat!: use guarded Git commands for repository storage
  
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  97bfc01
- ci: build supported Git for Cygwin tests
  
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- test: handle symlinked Git directories in refresh checks
  
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  d10c242
- fix: preserve repository and object paths across platforms
  
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- test: cover Cygwin index filename restrictions
  
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- test: preserve hidden gitfiles when preparing submodule aliases
  
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  444bcff
- test: clean up read-only submodule object files on Windows
  
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  087e322
- fix(submodule): close repositories owned by update operations
  
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- ci: install supported Git in the normal Cygwin layout
  
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- test(downstream): run released Bandit baseline tests against this checkout
  
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  4f403f9
- test(downstream): validate the latest MLflow Git integration
  
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  167220d
- test(downstream): exercise released LangChain GitLoader integration
  
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- test(downstream): cover SWE-bench cloning across Git storage formats
  
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  63a6e64
- test(downstream): run DataHub Git integration for its latest release
  
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- feat(gix): select the released backend through an installation extra
  
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  132cfef
- feat(gix): read object headers with native lookup
  
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  8cdcfea
- feat(gix): stream small objects from native storage
  
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  c7feaaa
- feat(gix): resolve revisions and repository metadata natively
  
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  2e7a9ba
- feat(gix): enumerate tree entries natively
  
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  ec91cfe
- feat(gix): resolve symbolic reference targets natively
  
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  a8b6793
- feat(gix): enumerate reference names natively
  
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  8d1965b
- feat(gix): query merged repository configuration natively
  
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  905ba5d
- feat(gix): list worktree metadata natively
  
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  ce89e10
- feat(gix): find merge bases and test ancestry natively
  
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  eff6e37
- feat(gix): count reachable commits natively
  
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  1624e18
- feat(gix): iterate first-parent commit history natively
  
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  85e3c46
- feat(gix): read index entries natively
  
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  c10efff
- feat(gix): query the index version natively
  
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  413667b
- feat(gix): hash and store objects natively
  
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  997dc2c
- feat(gix): write index trees with the native editor
  
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  5b716e6
- feat(gix): serialize trees with native object storage
  
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  231aba6
- feat(gix): initialize private indexes from trees natively
  
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- feat(gix): persist index edits through native snapshots
  
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  b48f13c
- feat(gix): create unsigned UTF-8 commits natively
  
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  66b8ad5
- feat(gix): read reference logs natively
  
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- feat(gix): resolve supported committer identities through Gix
  
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  456ea21
- feat(gix): update supported reference targets natively
  
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  9fbaf7f
- feat(gix): compute raw tree diffs natively
  
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  936c3c3
- feat(gix): compute commit statistics natively
  
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  bc8a5a7
- feat(gix): discover untracked files natively
  
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  b468df2
- feat(gix): check ignored paths natively
  
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- feat(gix): check repository dirtiness natively
  
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  2829b71
- build(gix): preserve the extra in local source distributions
  
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- fix(gix): omit dangling symbolic references from enumeration
  
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  54d5f8c
- fix(gix): defer compatibility object formats to Git
  
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  5544a4a
- docs(gix): document release setup and native conversion gaps
  
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- test: avoid repository setup for actor and exception tests
  
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- test: prepare historical dependency sources once on demand
  
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- test: copy prepared submodule baselines for each case
  
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- test: reuse prepared submodule rejection layouts
  
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- test: reuse a prepared revision graph with isolated copies
  
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- test: read historical trees without cloning a checkout
  
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- test: copy prepared no-fetch source and submodule repositories
  
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- docs: record fixture optimization validation and suite timings
  
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- test(perf): benchmark repository journeys across CLI and GixPython
  
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- ci: compare CLI and GixPython repository benchmarks
  
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- docs(perf): record measured CLI and GixPython repository journeys
  
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- test(gix): count CLI process launches and enforce benchmark ceilings
  
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- perf(gix): retain native repository handles on `Repo`
  
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- perf(gix): open repositories with supported native metadata
  
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- docs(perf): preserve pre-audit retained-handle measurements
  
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- refactor(gix): centralize retained repository access on `Repo`
  
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- perf(gix): resolve fixed metadata paths from the native Git directory
  
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- perf(gix): reuse object streams for serialization readback
  
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- perf(gix): read absent references without CLI fallbacks
  
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- perf(gix): validate reference names without opening Git
  
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- perf(gix): discover gitfiles through canonical native repositories
  
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- perf(gix): resolve revision path metadata without cat-file
  
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- perf(gix): parse submodule inventory and cached fields natively
  
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- docs(gix): record remaining configuration binding requirements
  
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- perf(cmd): share minimum Git version checks across wrappers
  
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- test(gix): keep hook lookup and execution on Git
  
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- test(perf): track native repository reads and required fallbacks
  
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- docs(gix): track strict Git compatibility and verified measurements
  
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- ci(downstream): test releases with CLI and Gix backends
  
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- perf(repo): batch repository metadata queries
  
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- fix(gix): preserve Git compatibility on Windows
  
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  2e68742
- ci(gix): add Ubuntu and macOS jobs with Cargo caching
  
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- fix: stabilize Windows submodules and temporary test cleanup
  
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- perf(tests): reduce Windows submodule process overhead
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  46ba8ff
- refactor!: delegate index state and metadata decoding to Git and Gix
  
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Commits

Commits on Oct 9, 2026