apache/arrow-rs
Grade a repo

87

/ 100

GradeB

Well engineered. The main gaps are setup instructions and the README.

Top 18% of 5,156 graded repos

Official Rust implementation of Apache Arrow

Documentation61
Engineering99
Health100
Rust3,524Apache-2.022d ago

Top fixes

Highest-impact changes first, ranked by point weight

6 to address
  1. 1
    README12pt

    Add a GIF, screenshot, or logo image. It is the fastest way to show what your project does.

  2. 2
    README12pt

    Add CI/build status badges from shields.io or your CI provider to signal project health.

  3. 3
    Install and run instructions9pt

    Add a section showing how to install dependencies.

  4. 4
    Install and run instructions9pt

    Add a section showing how to start or use the project.

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Scorecard

Every check, grouped by category and sorted worst-first

Documentation

61

Install and run instructions9pt0

No install instructions found in the README (−45 pts).

→ Add a section showing how to install dependencies.

README12pt70

README is present.

License6pt100

Licensed under Apache-2.0.

Contributing guide5pt100

Contributing guide is detailed and thorough.

Engineering

99

Reproducibility6pt90

Lockfile present (Cargo.lock). Installs are reproducible.

Tests18pt100

Test files detected (arrow-avro/test).

CI/CD14pt100

CI is configured (.github/workflows/integration.yml).

Linting and formatting5pt100

Rust linting configured (rustfmt.toml, cargo clippy in CI, cargo fmt in CI).

Issue and PR templates6pt100

Issue or PR templates present.

Project health

100

Dependency manifest6pt100

Dependency manifest found (Cargo.toml).

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)
  • 1,212
    Forks
  • 30
    Releaseslatest 1y ago

Community

  • 87% - Good
    Community health
  • 6 bus factor
    authors own >50% of commits
  • 3,524
    Watchers

Responsiveness

  • <1h
    Median issue response
  • 23h
    Median PR merge time
  • 608
    Open issues
Repository files53 root entries
  • .github
    Good: CI is configured (.github/workflows/integration.yml).
    Good: Dependabot covers 2 ecosystems (cargo, github-actions). Dependencies stay current.
    Good: Issue or PR templates present.
  • arrow
  • arrow-arith
  • arrow-array
  • arrow-avro
    Good: Test files detected (arrow-avro/test).
  • arrow-buffer
  • arrow-cast
  • arrow-csv
  • arrow-data
  • arrow-flight
  • arrow-integration-test
  • arrow-integration-testing
  • arrow-ipc
  • arrow-json
  • arrow-ord
  • arrow-pyarrow
  • arrow-pyarrow-integration-testing
  • arrow-pyarrow-testing
  • arrow-row
  • arrow-schema
  • arrow-select
  • arrow-string
  • dev
  • format
  • parquet
  • parquet_derive
  • parquet_derive_test
  • parquet-geospatial
  • parquet-variant
  • parquet-variant-compute
  • parquet-variant-json
  • .asf.yaml
  • .gitattributes
  • .github_changelog_generator
  • .gitignore
    Good: .gitignore present.
  • .gitmodules
  • .pre-commit-config.yaml
  • Cargo.lock
    Good: Lockfile present (Cargo.lock). Installs are reproducible.
  • Cargo.toml
    Good: Dependency manifest found (Cargo.toml).
  • CHANGELOG-old.md
  • CHANGELOG.md
  • CODE_OF_CONDUCT.md
    Good: Code of conduct present.
  • CONTRIBUTING.md
    Good: Contributing guide is detailed and thorough.
    Good: Contributing guide includes setup/install instructions.
    Good: Contributing guide describes code style expectations.
    Good: Contributing guide explains how to run tests.
    Good: Contributing guide describes the PR/review workflow.
    Good: Contributing guide includes code examples.
  • header
  • LICENSE.txt
    Good: Licensed under Apache-2.0.
  • NOTICE.txt
  • parquet-testing
  • pre-commit.sh
  • README.md
    Good: README is present.
    Good: README is well structured with multiple sections.
    Issue: No screenshots or images in the README (−20 pts).Fix: Add a GIF, screenshot, or logo image. It is the fastest way to show what your project does.
    Good: README has code examples.
    Good: README links to a live demo or deployed app.
    Issue: No status badges in the README (−10 pts).Fix: Add CI/build status badges from shields.io or your CI provider to signal project health.
    Issue: No install instructions found in the README (−45 pts).Fix: Add a section showing how to install dependencies.
    Issue: No run or usage instructions found (−45 pts).Fix: Add a section showing how to start or use the project.
  • rust-toolchain.toml
  • rustfmt.toml
    Good: Rust linting configured (rustfmt.toml, cargo clippy in CI, cargo fmt in CI).
  • SECURITY.md
    Good: Security policy present.
  • testing
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