facebookincubator/nimble

0

/ 100

Documentation93
Engineering51
Health68
C++718Apache-2.01d ago
Grade a repo

Popular for its size, but the engineering basics lag behind the interest.

New and extensible file format for storage of large columnar datasets.

Documentation

93

Contributing guide5pt72

Contributing guide is detailed and thorough.

Install and run instructions9pt90

README documents how to install the project.

README12pt100

README is present.

License6pt100

Licensed under Apache-2.0.

Engineering

51

Linting and formatting5pt0

No linter or formatter config found.

→ Add a linter config such as .eslintrc.json, .prettierrc, ruff.toml, or .golangci.yml to enforce consistent code style.

Issue and PR templates6pt0

No issue or PR templates found (−100 pts).

→ Add .github/ISSUE_TEMPLATE/ with bug_report.md and feature_request.md to guide contributors. It dramatically improves issue quality.

Reproducibility6pt12

No dependency lockfile found (−70 pts).

→ Commit the lockfile for this project's package manager so installs produce the same dependency versions everywhere.

CI/CD14pt72

CI is configured (.github/workflows/linux-build.yml).

Tests18pt80

Test files detected (dwio/nimble/common/tests).

Project health

68

Dependency manifest6pt0

No dependency manifest detected at root.

→ Add a manifest (package.json, pyproject.toml, Cargo.toml, go.mod, etc.) so others can install dependencies in one command.

Repository metadata5pt100

Repository has a description.

Activity5pt100

Actively maintained (pushed within the last month).

Housekeeping3pt100

.gitignore present.

Repository health signals

Activity, community, and responsiveness at scan time

Activity

  • —
    Commits (30d / 90d)
  • 84
    Forks
  • 0
    Releases

Community

  • —
    Community health
  • —
    authors own >50% of commits
  • 718
    Watchers

Responsiveness

  • 1d 4h
    Median issue response
  • <1h
    Median PR merge time
  • 130
    Open issues
Repository files19 root entries
  • .github
    Good: CI is configured (.github/workflows/linux-build.yml).
    Good: Dependabot configured for github-actions.
  • CMake
  • dwio
    Good: Test files detected (dwio/nimble/common/tests).
  • scripts
  • .clang-format
  • .gersemirc
  • .gitignore
    Good: .gitignore present.
  • .gitmodules
  • .pre-commit-config.yaml
  • AGENTS.md
  • CMakeLists.txt
  • CODE_OF_CONDUCT.md
    Good: Code of conduct present.
  • CONTRIBUTING.md
    Good: Contributing guide is detailed and thorough.
    Issue: Contributing guide lacks a setup section (−12 pts).Fix: Show new contributors how to get a local dev environment running.
    Issue: Contributing guide lacks a code style section (−8 pts).Fix: Describe your linting/formatting rules and how to run them.
    Issue: Contributing guide lacks a testing section (−8 pts).Fix: Show contributors how to run the test suite (e.g. npm test, pytest, cargo test).
    Good: Contributing guide describes the PR/review workflow.
    Issue: Contributing guide has no code examples (−5 pts).Fix: Add code blocks showing example commands for setup, running tests, and submitting a PR.
  • LICENSE
    Good: Licensed under Apache-2.0.
  • license.header
  • Makefile
  • openzl
  • README.md
    Good: README is present.
    Good: README is well structured with multiple sections.
    Good: README includes screenshots or visuals. Great for first impressions.
    Good: README has code examples.
    Good: README links to a live demo or deployed app.
    Good: README includes status badges.
    Good: README documents how to install the project.
    Good: README documents how to run the project.
  • velox