fix(pkgx): coerce letter-suffixed versions for range matching

[amartani]

The pkgx backend failed to resolve dependencies like openssl.org ^1.0.1 (required by e.g. postgresql.org): versions such as 1.1.1w never satisfied the range, so resolution reported no matching version despite 1.1.1s–1.1.1w being listed.

OpenSSL-style trailing letters are patch-level releases in pkgx semantics, but the npm semver engine parses them as prereleases that never match a plain range like ^1.0.1. This change coerces letter-suffixed versions/bounds (e.g. 1.1.1w → 1.1.1) for range inclusion checks. For openssl.org ^1.0.1 against the ascending [1.1.1s … 1.1.1w, 3.x] list now resolves to 1.1.1w.

Note that this only changes version inclusion: version selection still trusts versions.txt order (rev().find / .last()) instead of comparing versions. pkgx pantry sorts versions when publishing that file.

Validation: 9/9 backend::pkgx unit tests pass (including a test pinning the ordered-list resolution to 1.1.1w), rustfmt clean, cargo clippy --locked --all-targets reports nothing for the touched code.

Alternatives

• fix(pkgx): resolve letter-suffixed versions with libsemverator ordering amartani/mise#1: same inclusion fix, but version comparison delegated to the libsemverator crate (from pkgx) — canonical ordering incl. prerelease/build/calver handling, at the cost of a new third-party dependency.
• fix(pkgx): order letter-suffixed versions like pkgx semver amartani/mise#2: same inclusion fix, plus a hand-rolled pkgx-order comparator (~115 lines, no new dependency) making selection order-independent — but missing calver handling and hand-maintained going forward.
• This PR: neither — smallest diff, zero dependency cost, but selection correctness depends on the upstream list staying sorted.

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Summary by CodeRabbit

• Bug Fixes
  • Improved package version matching for OpenSSL-style versions with trailing letters, such as 1.1.1w.
  • Improved compatibility when comparing versions with or without a leading v.
  • Preserved correct handling of prerelease versions containing digits.
  • Improved requirement parsing for letter-suffixed version bounds.
  • Improved selection of the highest version satisfying caret-based requirements.
  • Improved consistency when evaluating versions against supported package requirements.

[coderabbitai]

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📝 Walkthrough

Walkthrough

Pkgx now coerces OpenSSL-style trailing-letter versions during requirement parsing and satisfaction checks. It preserves prerelease versions with digit-bearing suffixes. Tests cover coercion, caret ranges, bounds, and highest-version selection.

Changes

Version compatibility

Layer / File(s)	Summary
Requirement version coercion src/backend/pkgx.rs	Requirement parsing now tries versions with pure trailing-letter suffixes removed before the original form, including wildcard forms. Tests cover coerced bounds and preserved digit-bearing prerelease suffixes.
Satisfaction checks and validation src/backend/pkgx.rs	Satisfaction checks try plain, v-trimmed, and coerced versions. Tests cover caret matching and selection of the highest matching letter-suffixed version.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 438e1

The suffix compatibility change preserves supported prerelease handling and has no identified merge-blocking risk.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	Docstring coverage is 83.33% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 12 functions across 1 files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: coercing letter-suffixed pkgx versions for range matching.

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[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge.

Summary

pkgx now matches OpenSSL-style letter-suffixed versions against normal semver ranges, so dependencies such as ^1.0.1 resolve instead of reporting no match. It keeps digit-based prerelease suffixes unchanged and still selects the last matching version from the ordered list.

• Coerces letter-suffixed versions like 1.1.1w to 1.1.1 for range checks.
• Coerces letter-suffixed bounds while preserving prerelease forms like 3.12.0a1.
• Adds coverage for leading v, range bounds, and ordered selection of 1.1.1w.

_{Reviews (8) · Last reviewed commit: "docs(pkgx): document letter-suffix coerc..."}

[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@src/backend/pkgx.rs`:
- Around line 471-472: Update the requirement parsing flow around Range::parse
to call coerce_requirement_versions before returning the first successfully
parsed range, and prefer the coerced result whenever coercion changes the input.
Add a semantic assertion covering a letter-suffixed bound such as <=1.1.1q to
ensure it accepts the corresponding coerced version.

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This PR currently has failing checks. If this continues for 7 days, it will be closed automatically.

This is warning day 1 of 7.

Please update the PR when you have a chance. Feel free to reopen or create a new PR if it is closed and you'd like to continue working on it.

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