fix(pm): Windows support — normalize OS and use sh for postinstall

[elrrrrrrr]

Summary

Fix utoo on Windows by addressing two root causes:

1. normalize_os missing win32/windows mapping — Rust's std::env::consts::OS returns "windows" but npm packages use "win32" in their os field. Without normalization, platform-specific optional dependencies like @rolldown/binding-win32-x64-msvc are incorrectly skipped on Windows.

2. postinstall uses bash which may not be in PATH on Windows — Change from bash to sh (POSIX compatible). Git for Windows provides sh.exe in PATH. Also convert [[ ]] bash-only syntax to POSIX [ ] in all templates.

Changes

• crates/ruborist/src/model/compatibility.rs: Add "win32" | "windows" => "win32" to normalize_os
• vendor/templates/*.template: #!/bin/bash → #!/bin/sh, [[ ]] → [ ]
• vendor/templates/utoo.package.json.template: bash ./postinstall.sh → sh ./postinstall.sh
• vendor/scripts/npm-utoo.sh: placeholder shebangs #!/bin/bash → #!/bin/sh
• e2e/utoo-pm.sh, e2e/utoo-pm.ps1: Add optional deps test case (rolldown binding)

Test plan

• cargo test -p utoo-ruborist -- compatibility passes
• E2E: rolldown binding installed on Windows/macOS/Linux

🤖 Generated with Claude Code

[gemini-code-assist]

Summary of Changes

Hello, 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 significantly enhances the utoo package manager's compatibility and reliability on Windows by addressing critical issues related to operating system identification and shell script execution. The changes ensure that platform-specific dependencies are correctly recognized and installed, and that postinstall scripts run successfully across various environments, leading to a more robust cross-platform experience.

Highlights

• Windows OS Normalization: The normalize_os function in ruborist was updated to correctly map both "win32" and "windows" operating system strings to "win32", ensuring proper platform detection for optional dependencies on Windows.
• Shell Script Compatibility: All relevant shell scripts and templates were modified to use #!/bin/sh instead of #!/bin/bash and to replace bash-specific [[ ]] conditional syntax with POSIX-compatible [ ]. This change improves compatibility, especially on Windows where sh.exe (provided by Git for Windows) is more reliably in the PATH than bash.exe.
• End-to-End Test Coverage: New end-to-end test cases were added for both Windows (PowerShell) and Unix-like systems (Bash) to verify the correct installation and loading of platform-specific optional dependencies, specifically using the rolldown binding as an example.

Changelog

• crates/ruborist/src/model/compatibility.rs
  • Added "win32" and "windows" to the normalize_os function to map to "win32".
• e2e/utoo-pm.ps1
  • Added a new test case to verify the installation and loading of platform-specific optional dependencies (rolldown binding) on Windows.
• e2e/utoo-pm.sh
  • Added a new test case to verify the installation and loading of platform-specific optional dependencies (rolldown binding) on Unix-like systems.
• vendor/scripts/npm-utoo.sh
  • Changed shebangs in placeholder binaries from #!/bin/bash to #!/bin/sh.
• vendor/templates/postinstall.sh.template
  • Changed shebang from #!/bin/bash to #!/bin/sh.
  • Replaced [[ ]] bash-specific syntax with POSIX [ ].
• vendor/templates/postinstall.utoo.sh.template
  • Changed shebang from #!/bin/bash to #!/bin/sh.
  • Replaced [[ ]] bash-specific syntax with POSIX [ ].
• vendor/templates/utoo.package.json.template
  • Updated the postinstall script command from bash ./postinstall.sh to sh ./postinstall.sh.

Activity

• No human activity has been recorded on this pull request yet.

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[gemini-code-assist]

Code Review

This pull request improves Windows support by normalizing the OS name in the Rust code and switching shell scripts from bash to the more portable sh. The changes are logical and well-supported by new end-to-end tests. I've suggested a couple of improvements to the new test scripts to make them more robust by dynamically detecting the architecture and failing explicitly on unsupported platforms instead of passing silently.

[killagu]

LGTM