madler/zlib
Grade a repo

0

/ 100

GradeD

A workable base with real gaps. Start with the README and a reproducible setup.

Higher than 46% of 5,156 graded repos

A massively spiffy yet delicately unobtrusive compression library.

Documentation59
Engineering54
Health89
C7,083Other3mo ago

A low grade is a to-do list, not a judgment of your code

Most gaps here are documentation, tests, and setup, not the code itself. Closing your top 3 gaps alone would lift this repo to C (75).

See your top fixes
Now
D
62
Potential
C
75

Top fixes

Highest-impact changes first, ranked by point weight

18 to address
  1. 1
    Tests18pt

    Wire your tests to a documented command (e.g. a test script in your build config) so the suite is reproducible.

  2. 2
    CI/CD14pt

    Add a lint step to catch style issues automatically.

  3. 3
    CI/CD14pt

    Add `tsc --noEmit`, `mypy`, or `cargo check` to catch type errors before they merge.

  4. 4
    CI/CD14pt

    Upload coverage to Codecov, Coveralls, or report it with `--coverage` flags.

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Scorecard

Every check, grouped by category and sorted worst-first

Documentation

59

Contributing guide5pt0

No CONTRIBUTING.md found (−47 pts base + up to −53 pts more for content).

→ Add a CONTRIBUTING.md telling newcomers how to get involved. Include setup, code style, test, and PR instructions.

README12pt40

README is present.

Install and run instructions9pt90

README documents how to install the project.

License6pt100

Licensed under Other.

Engineering

54

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.

Reproducibility6pt0

No dependency lockfile found (−70 pts).

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

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.

Tests18pt80

Test files detected (contrib/ada/test).

CI/CD14pt85

CI is configured (.github/workflows/c-std.yml).

Project health

89

Activity5pt60

Last pushed 3-6 months ago (−40 pts). A push within 90 days earns 80 pts; within 30 days earns 100 pts.

→ A recent commit keeps the project looking alive to visitors and contributors.

Dependency manifest6pt100

Dependency manifest found (contrib/dotzlib/DotZLib.sln).

Repository metadata5pt100

Repository has a description.

Housekeeping3pt100

.gitignore present.

Repository health signals

Activity, community, and responsiveness at scan time

Activity

  • 0 / 0
    Commits (30d / 90d)
  • 2,853
    Forks
  • 4
    Releaseslatest 7mo ago

Community

  • 42% - Weak
    Community health
  • 1 bus factorlow
    author own >50% of commits
  • 7,083
    Watchers

Responsiveness

  • 129d 16h
    Median issue response
  • -
    Median PR merge time
  • 306
    Open issues
Repository files60 root entries
  • .github
    Good: CI is configured (.github/workflows/c-std.yml).
  • amiga
  • contrib
    Good: Test files detected (contrib/ada/test).
    Good: Dependency manifest found (contrib/dotzlib/DotZLib.sln).
  • doc
  • examples
  • msdos
  • os400
  • qnx
  • test
  • watcom
  • win32
  • .cmake-format.yaml
  • .gitignore
    Good: .gitignore present.
  • adler32.c
  • BUILD.bazel
  • ChangeLog
  • CMakeLists.txt
  • compress.c
  • configure
  • crc32.c
  • crc32.h
  • deflate.c
  • deflate.h
  • FAQ
  • gzclose.c
  • gzguts.h
  • gzlib.c
  • gzread.c
  • gzwrite.c
  • INDEX
  • infback.c
  • inffast.c
  • inffast.h
  • inffixed.h
  • inflate.c
  • inflate.h
  • inftrees.c
  • inftrees.h
  • LICENSE
    Good: Licensed under Other.
  • make_vms.com
  • Makefile
  • Makefile.in
  • MODULE.bazel
  • README
    Good: README is present.
    Issue: README has little structure (−15 pts). Add 2-3 headings for +8 pts; 4+ earns +15 pts.Fix: Break it into sections (Overview, Install, Usage, Contributing) using Markdown headings.
    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.
    Issue: README has no code examples (−15 pts).Fix: Show a quick-start snippet so contributors can see what using your project looks like.
    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.
    Good: README documents how to install the project.
    Good: README documents how to run the project.
  • README-cmake.md
  • treebuild.xml
  • trees.c
  • trees.h
  • uncompr.c
  • zconf.h
  • zconf.h.in
  • zlib.3
  • zlib.3.pdf
  • zlib.h
  • zlib.map
  • zlib.pc.cmakein
  • zlib.pc.in
  • zlibConfig.cmake.in
  • zutil.c
  • zutil.h
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