Allow overriding build type via env var

[achirkin]

Allow overriding the CMAKE_BUILD_TYPE in the build.sh script via environment variables.

Mirrors the LIBCUVS_BUILD_DIR pattern.

This allows, for example, writing LIBCUVS_BUILD_TYPE=RelWithDebInfo ./build.sh to build cuvs with debug symbols and optimization enabled - without modifying the build script.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: NVIDIA/cuvs/.coderabbit.yaml
• Review profile: CHILL
• Plan: Enterprise
• Run ID: 4fe217ff-ac2d-4b96-bb09-641a5d079153

📥 Commits

Reviewing files that changed from the base of the PR and between 28a9ec1 and c7c5829.

📒 Files selected for processing (1)

• build.sh

Included review availability: This review used your included allowance. Your plan provides up to 12 included reviews per hour; 11 remain after this review.

---

📝 Summary

Summary by CodeRabbit

• Chores
  • Build configuration now supports setting the build type through LIBCUVS_BUILD_TYPE, defaulting to Release when unset.

Walkthrough

The build script now uses LIBCUVS_BUILD_TYPE as the build-type default when set, and otherwise uses Release. The CMake configure command quotes the build-type value.

Changes

Build configuration

Layer / File(s)	Summary
Build type selection and configuration build.sh	BUILD_TYPE now defaults to LIBCUVS_BUILD_TYPE or Release. The CMake configure command quotes the expanded build-type value.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Feature

Merge Risk: ⚪ Minimal · up to c7c58

The build-type environment override is a bounded configuration change, and no material merge risk is established.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: allowing the build type to be overridden through an environment variable.
Description check	✅ Passed	The description directly explains the build type override, the environment variable name, the existing pattern it follows, and an example use case.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

• Autopilot · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

---

_{Comment @coderabbitai help to get the list of available commands.}