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refactor(deps): use std::sync::LazyLock instead of once_cell::Lazy#9668

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jdx merged 2 commits intojdx:mainfrom
risu729:codex/remove-once-cell-dependency
May 7, 2026
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refactor(deps): use std::sync::LazyLock instead of once_cell::Lazy#9668
jdx merged 2 commits intojdx:mainfrom
risu729:codex/remove-once-cell-dependency

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@risu729
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@risu729 risu729 commented May 7, 2026

Replace once_cell::sync::Lazy with std::sync::LazyLock where initialization is infallible:

  • crates/vfox/src/config.rs (Linux env_type static)
  • crates/vfox/src/registry.rs (SDKS)
  • crates/vfox/src/runtime.rs
  • src/task/task_file_providers/remote_task_git.rs

This keeps the direct once_cell dependency for OnceCell / get_or_try_init call sites. std::sync::OnceLock::get_or_try_init remains unstable behind once_cell_try (rust-lang/rust#109737), so those are unchanged.

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greptile-apps Bot commented May 7, 2026

Greptile Summary

Replaces once_cell::sync::Lazy with the equivalent std::sync::LazyLock (aliased as Lazy) in the four files where initialization is infallible, reducing the external dependency surface without changing any behavior. The once_cell dependency is intentionally kept because OnceLock::get_or_try_init remains unstable in std.

  • Swap is made in crates/vfox/src/config.rs, registry.rs, runtime.rs, and src/task/task_file_providers/remote_task_git.rs — all sites that used Lazy::new(|| …) with infallible closures.
  • once_cell is retained in both Cargo.toml files and in the remaining call sites (cache.rs, fake_asdf.rs, git.rs, mise_toml.rs) that rely on OnceCell::get_or_try_init.

Confidence Score: 5/5

Safe to merge — pure import substitution with identical runtime semantics and no logic changes.

All four changed sites use infallible Lazy::new(|| …) closures where std::sync::LazyLock is a drop-in replacement. The project's MSRV (1.91) far exceeds the 1.80 stabilization point for LazyLock. The once_cell dependency is correctly retained for the remaining OnceCell/get_or_try_init call sites. No logic is altered.

No files require special attention.

Reviews (4): Last reviewed commit: "Merge branch 'main' into codex/remove-on..." | Re-trigger Greptile

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Code Review

This pull request replaces the once_cell crate with standard library equivalents LazyLock and OnceLock. While this simplifies dependencies, the manual implementation of initialization logic in src/cache.rs, src/git.rs, and src/fake_asdf.rs introduces thread-safety issues. Specifically, the check-then-initialize pattern allows for race conditions where expensive or side-effect-heavy initialization (like file I/O or git operations) may run multiple times across different threads.

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risu729 commented May 7, 2026

We need rust-lang/rust#109737 to be stable.

@risu729 risu729 closed this May 7, 2026
@risu729 risu729 deleted the codex/remove-once-cell-dependency branch May 7, 2026 11:06
@risu729 risu729 restored the codex/remove-once-cell-dependency branch May 7, 2026 11:08
@risu729 risu729 reopened this May 7, 2026
@risu729 risu729 force-pushed the codex/remove-once-cell-dependency branch from f8cf2e3 to 33df929 Compare May 7, 2026 11:12
@risu729 risu729 changed the title refactor(deps): remove once_cell dependency refactor(deps): use std::sync::LazyLock instead of once_cell::Lazy May 7, 2026
@risu729 risu729 marked this pull request as ready for review May 7, 2026 11:15
@jdx jdx enabled auto-merge (squash) May 7, 2026 11:28
@jdx jdx merged commit a129bf5 into jdx:main May 7, 2026
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@risu729 risu729 deleted the codex/remove-once-cell-dependency branch May 7, 2026 12:13
mise-en-dev added a commit that referenced this pull request May 7, 2026
### 🚀 Features

- **(aqua)** support registry libc variants by @jdx in
[#9652](#9652)
- **(bin-paths)** add executable names output by @risu729 in
[#9617](#9617)

### 🐛 Bug Fixes

- **(aqua)** preserve configured file extensions by @risu729 in
[#9611](#9611)
- **(aqua)** support registry file links by @risu729 in
[#9610](#9610)
- **(backend)** reject bare package backend names by @risu729 in
[#9608](#9608)
- **(backend)** apply inline tool option overrides by @risu729 in
[#9306](#9306)
- **(backend)** skip versions host for local tool opts by @risu729 in
[#9568](#9568)
- **(github)** chmod explicit archive bin by @risu729 in
[#9609](#9609)
- **(install)** skip remote-versions refresh in prefer-offline mode by
@jdx in [#9627](#9627)
- **(lock)** scope targets to active project root by @risu729 in
[#9319](#9319)
- **(lockfile)** respect existing platforms during auto-lock by @jdx in
[#9621](#9621)
- **(pipx)** filter yanked pypi releases by @risu729 in
[#9607](#9607)
- **(pipx)** declare python as a backend dependency by @jdx in
[#9678](#9678)
- **(schema)** update refs to $defs in mise-registry-tool.json by
@risu729 in [#9671](#9671)
- **(task)** terminate parallel siblings on failure via process groups
by @jdx in [#9655](#9655)
- **(task)** stable MISE_PROJECT_ROOT for monorepo tasks, add
MISE_MONOREPO_ROOT by @jdx in
[#9657](#9657)
- **(trust)** run enter hooks after trusting config by @risu729 in
[#9634](#9634)
- **(ui)** stop clearing screen for prompts by @jdx in
[#9619](#9619)
- use /bin/cp on macos by @pdehlke in
[#9656](#9656)

### 🚜 Refactor

- **(aqua)** store aqua var defaults as strings by @risu729 in
[#9645](#9645)
- **(config)** support structured TOML values in registry backend
options by @risu729 in [#9584](#9584)
- **(deps)** remove serde_derive dependency by @risu729 in
[#9670](#9670)
- **(deps)** remove anyhow dependency by @risu729 in
[#9661](#9661)
- **(deps)** use std::sync::LazyLock instead of once_cell::Lazy by
@risu729 in [#9668](#9668)
- **(schema)** generate task schema from mise schema by @risu729 in
[#9581](#9581)
- **(schema)** reuse task props with unevaluatedProperties by @risu729
in [#9582](#9582)
- **(schema)** reuse registry common types by @risu729 in
[#9648](#9648)
- **(schema)** reuse plugin script config by @risu729 in
[#9647](#9647)
- **(schema)** use $defs in schema files by @risu729 in
[#9646](#9646)

### 📚 Documentation

- **(node)** add tips for enabling node idiomatic by @fu050409 in
[#9675](#9675)

### 🧪 Testing

- **(cli)** remove nondeterministic tool depends assertion by @risu729
in [#9633](#9633)
- **(e2e)** pin uv to 0.11.8 around astral-sh/uv#19278 by @jdx in
[#9618](#9618)
- **(e2e)** wait for docker env cleanup by @risu729 in
[#9631](#9631)
- **(zig)** use official zig instead of mach mirror by @jdx in
[#9659](#9659)

### 📦️ Dependency Updates

- fall through to hash check when providers have no outputs by @jdx in
[#9622](#9622)
- bump Cargo.lock by @jdx in
[#9625](#9625)

### 📦 Registry

- remove registry depends by @risu729 in
[#9571](#9571)
- add code-review-graph (pipx:code-review-graph) by @chautruonglong in
[#9673](#9673)

### Chore

- **(ci)** split large registry test-tool changes by @risu729 in
[#9628](#9628)
- **(ci)** make perf script robust to runner noise by @jdx in
[#9635](#9635)
- **(ci)** skip hyperfine comments without permission by @risu729 in
[#9629](#9629)

### New Contributors

- @chautruonglong made their first contribution in
[#9673](#9673)
- @pdehlke made their first contribution in
[#9656](#9656)

## 📦 Aqua Registry Updates

### New Packages (5)

-
[`anthropics/anthropic-cli`](https://github.com/anthropics/anthropic-cli)
- [`crates.io/wasmi_cli`](https://github.com/wasmi-labs/wasmi)
- [`openclaw/gogcli`](https://github.com/openclaw/gogcli)
- `racket-lang.org/racket-minimal`
- [`runs-on/cli`](https://github.com/runs-on/cli)

### Updated Packages (13)

- [`UpCloudLtd/upcloud-cli`](https://github.com/UpCloudLtd/upcloud-cli)
- [`aristocratos/btop`](https://github.com/aristocratos/btop)
- [`dprint/dprint`](https://github.com/dprint/dprint)
- [`j178/prek`](https://github.com/j178/prek)
- [`jdx/hk`](https://github.com/jdx/hk)
- [`jdx/mise`](https://github.com/jdx/mise)
- [`jdx/usage`](https://github.com/jdx/usage)
- [`jreleaser/jreleaser`](https://github.com/jreleaser/jreleaser)
-
[`jreleaser/jreleaser/standalone`](https://github.com/jreleaser/jreleaser)
- [`pnpm/pnpm`](https://github.com/pnpm/pnpm)
- [`suzuki-shunsuke/cmdx`](https://github.com/suzuki-shunsuke/cmdx)
- [`suzuki-shunsuke/ghir`](https://github.com/suzuki-shunsuke/ghir)
- [`twpayne/chezmoi`](https://github.com/twpayne/chezmoi)
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2 participants