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[cargo-zerocopy] Auto-install env var toggle#2840

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joshlf merged 1 commit intomainfrom
cargo-zerocopy-auto-download
Dec 2, 2025
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[cargo-zerocopy] Auto-install env var toggle#2840
joshlf merged 1 commit intomainfrom
cargo-zerocopy-auto-download

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@joshlf joshlf commented Dec 2, 2025

When the environment variable CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN is set, auto-install toolchains without prompting the user.

gherrit-pr-id: Ic5070e48a9b829ca68b8356d44b42bd97543ead9

@joshlf joshlf requested a review from jswrenn December 2, 2025 13:42
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Summary of Changes

Hello @joshlf, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the cargo-zerocopy tool by adding an environment variable, CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN, which allows for the automatic installation of required Rust toolchains and rust-src components without user interaction. This change provides greater flexibility for automated environments beyond GitHub Actions, streamlining the setup process for users who prefer non-interactive installations.

Highlights

  • Environment Variable for Auto-Installation: Introduced the CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN environment variable to enable automatic, non-interactive installation of Rust toolchains and rust-src components.
  • Bypassing User Prompt: When CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN is set, the cargo-zerocopy tool will proceed with toolchain installation without requiring user confirmation, similar to its existing behavior in GitHub Actions environments.
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@joshlf joshlf force-pushed the cargo-zerocopy-auto-download branch from 522b091 to fb1b8f2 Compare December 2, 2025 13:42
@joshlf joshlf enabled auto-merge December 2, 2025 13:42
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Code Review

This pull request introduces an environment variable CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN to allow non-interactive installation of Rust toolchains. The implementation is functionally correct. I've provided one suggestion to improve the performance and clarity of how the environment variable is checked.

@joshlf joshlf force-pushed the cargo-zerocopy-auto-download branch from fb1b8f2 to 2f3b5c0 Compare December 2, 2025 13:45
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codecov-commenter commented Dec 2, 2025 •
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.33%. Comparing base (8f910fc) to head (e8635d5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files 
@@           Coverage Diff           @@
##             main    #2840   +/-   ##
=======================================
  Coverage   92.33%   92.33%           
=======================================
  Files          20       20           
  Lines        5794     5794           
=======================================
  Hits         5350     5350           
  Misses        444      444

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

@joshlf joshlf added this pull request to the merge queue Dec 2, 2025
@joshlf joshlf removed this pull request from the merge queue due to a manual request Dec 2, 2025
@joshlf
[cargo-zerocopy] Auto-install env var toggle
e8635d5 
When the environment variable `CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN` is
set, auto-install toolchains without prompting the user.

gherrit-pr-id: Ic5070e48a9b829ca68b8356d44b42bd97543ead9
@joshlf joshlf force-pushed the cargo-zerocopy-auto-download branch from 2f3b5c0 to e8635d5 Compare December 2, 2025 13:52
@joshlf joshlf enabled auto-merge December 2, 2025 13:53
@joshlf joshlf added this pull request to the merge queue Dec 2, 2025
Merged via the queue into main with commit ce4e673 Dec 2, 2025
102 checks passed
@joshlf joshlf deleted the cargo-zerocopy-auto-download branch December 2, 2025 14:28
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@jswrenn jswrenn jswrenn approved these changes

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