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Build and Run Local

build-run-local

Run local builds with proper environment setup. Use when building code locally to verify changes before pushing.

SKILL.md

Full skill instructions

Build and Run Local

Execute local builds with environment setup matching CI pipeline.

When to Use

  • Building code locally before pushing
  • Testing individual components locally
  • Verifying changes work before creating PR
  • Running tests in local environment
  • Debugging build issues in isolation

Quick Reference

# Activate environment
eval "$(pixi shell-hook)"
pixi run mojo --version

# Build project
pixi run mojo build -I . shared/​core/​extensor.mojo

# Run tests
pixi run mojo test -I . tests/​shared/​core/

# Run specific test
pixi run mojo test -I . tests/​shared/​core/​test_extensor.mojo

# Format code
pixi run mojo format .

Workflow

  1. Activate environment: Use pixi to setup environment
  2. Verify environment: Check mojo version and dependencies
  3. Build locally: Run mojo build with proper flags
  4. Run tests: Execute test suite locally
  5. Check warnings: Verify zero-warnings policy compliance
  6. Run pre-commit: Validate formatting and linting
  7. Commit changes: Only after local verification passes

Build Configuration

Environment Setup:

  • pixi shell-hook activates the pixi environment
  • Sets MOJO_PATH and compiler flags
  • Matches CI environment configuration

Build Flags:

  • -I . includes current directory in path
  • -O enables optimizations for release builds
  • --no-warn-unused suppresses specific warnings (use sparingly)

Test Flags:

  • -I . for module resolution
  • -v for verbose output
  • -k "pattern" to run specific tests

Output Format

Report build results with:

  1. Status - Success or failure
  2. Warnings - Any compiler warnings found (must be zero)
  3. Test Results - Passed/​failed counts
  4. Build Time - Performance metrics
  5. Issues - Any errors encountered

Error Handling

ProblemSolution
Environment not foundRun pixi shell-hook to activate
Module not foundVerify -I . flag and correct paths
Permission deniedCheck file permissions and ownership
Out of memoryReduce parallel jobs or simplify test
TimeoutCheck for infinite loops or long operations

References

  • See pixi.toml for available tasks and configuration
  • See CLAUDE.md for zero-warnings policy
  • See mojo-test-runner skill for advanced testing

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