@v0idd0/gitstats

v2.0.3

Published

a month ago

gitstats — local git analytics CLI. Lines of code, commits over time, contributors, heatmap, hotspots, bus factor, streaks, release cadence, burndown. Free forever from vøiddo.

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git statistics analytics loc commits contributors heatmap hotspots bus-factor streak churn cli voiddo

gitstats

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Local git analytics, no signup, no remote. Run it in any repo and get an instant read on the codebase — LOC, contributors, commit heatmap, bug hotspots, bus factor, streaks, release cadence, burndown.

Free forever gift from vøiddo.

  gitstats — tools.voiddo.com/gitstats
  ────────────────────────────

  SUMMARY
  ───────
  Repository:   my-repo
  Commits:      1,423
  Contributors: 7
  First commit: 2023-11-02
  Last commit:  2026-04-22 (3 hours ago)

  HOTSPOTS (most-changed files)
  ────────
     87  ██████████████  src/api/router.py
     61  █████████░░░░░  src/models/user.py
     54  ████████░░░░░░  src/services/billing.py
     ...

  BUS FACTOR
  ──────────
  2 author(s) cover 50% of 1423 commits.
    • Jane Doe              612  43.0%
    • John Smith            251  17.6%

Why gitstats

git log | wc -l gives you one number. cloc doesn't know about history. GitHub's "Insights" tab is behind a login, and it lies by omission (no bus-factor, no streaks, no hotspots). gitstats runs locally in your terminal, reads only what git already tells it, and surfaces the metrics that actually help you ship.

Install

npm install -g @v0idd0/gitstats

Or one-shot via npx:

npx -y @v0idd0/gitstats --hotspots --top 30

Quickstart

# Full dashboard (summary + LOC + contributors)
gitstats

# Specific metrics
gitstats --loc --commits --heatmap
gitstats --hotspots --top 30
gitstats --bus-factor
gitstats --streak
gitstats --releases
gitstats --weekday --hours
gitstats --burn                      # additions vs deletions per month
gitstats --coauthors                 # Co-Authored-By leaderboard

# Per-author deep-dive
gitstats --author "Jane Doe"
gitstats --author "Jane Doe" --streak --hotspots

# Date / range filters
gitstats --since 2026-01-01 --until 2026-03-31 --contributors
gitstats --last-month
gitstats --last-year
gitstats --range v1.0.0..v2.0.0 --contributors --hotspots

# Machine output
gitstats --json --hotspots | jq '.hotspots[0]'
gitstats --csv --contributors > contributors.csv

Metrics

| Flag | What it shows | |------|---------------| | --summary | One-block overview: repo name, commit count, contributors, first/last commit | | -l, --loc | Lines of code by extension, with bars + percentages | | -c, --commits | Commits by month (last 12) | | --contributors | Top contributors leaderboard with commit bars | | -H, --heatmap | 52-week ASCII activity heatmap (GitHub-style) | | --hotspots | Most-changed files (churn analysis, bug-hotspot signal) | | --bus-factor | How many authors cover 50% of commits — low = risky | | --weekday | Commit distribution by day of week | | --hours | Commit distribution by hour of day (0–23) | | --burn | Additions vs deletions per month (green vs red bars) | | --releases | Git tag cadence — average gap between releases | | --streak | Longest + current daily commit streak | | --coauthors | Co-Authored-By trailer leaderboard | | -a, --author <name> | Per-author stats: commits, first/last, additions, deletions, net |

Filters

| Flag | Description | |------|-------------| | --since <date> | Include commits on/after this date | | --until <date> | Include commits on/before this date | | --last-month | Shortcut for --since 30 days ago | | --last-year | Shortcut for --since 1 year ago | | --range <rev1..rev2> | Limit to a ref range (e.g. v1.0..v2.0) |

Output

| Flag | Description | |------|-------------| | --json | Emit the picked metrics as JSON | | --csv | Emit contributors / LOC / hotspots / summary as CSV | | --top <N> | Limit hotspots / contributors rows (default 20) | | -h, --help | Show help | | --version | Show version |

Features worth calling out

Hotspots — bug-hotspot signal

Counts how many commits touched each file. Files at the top of the list are where churn concentrates — where bugs cluster, where refactors avoid, where onboarding hits hardest. A classic signal from Your Code as a Crime Scene, computed in under a second on any repo.

Bus factor

How many authors do you need to read to understand 50% of the repo's history? If the answer is 1, you have a people-risk problem, not a code problem. gitstats surfaces the raw number plus a ⚠ warning when it's ≤ 1.

Streak

Longest and current consecutive-day commit streak. Useful for solo-dev retros, not as a productivity cudgel.

Release cadence

Reads refs/tags, computes average gap between tags, and shows your last 5 release intervals. Useful for "are we shipping faster or slower than last quarter?" without pulling up GitHub.

Burndown

Additions vs deletions per month as stacked green/red bars. Fast visual signal for "is this codebase growing unbounded or being maintained?"

Range-aware everything

--range v1.0..v2.0 --hotspots tells you which files changed most between two releases. Great for changelog prep and regression risk review.

Shell-injection-safe

Every git invocation uses spawnSync('git', [...args]) — no shell interpolation — so --author "x\"; rm -rf /" is just a query with no matches, not a catastrophe.

Programmatic use

const analyzer = require('@v0idd0/gitstats/src/analyzer');

const hotspots = analyzer.getHotspots(process.cwd(), {}, 10);
const bf = analyzer.getBusFactor(process.cwd());
const streak = analyzer.getStreak(process.cwd());

console.log('top hotspot:', hotspots[0]);
console.log('bus factor:', bf.factor);
console.log('longest streak:', streak.longest);

Exports: isGitRepo, getRepoName, getCommitCount, getContributors, getLinesOfCode, getCommitsByDay, getCommitsByMonth, getCommitsByWeekday, getCommitsByHour, getFirstCommit, getLastCommit, getLastCommitRelative, generateHeatmap, getAuthorStats, getHotspots, getBusFactor, getStreak, getReleaseCadence, getCoauthors, getBurndown.

From the same studio

vøiddo builds sharp, free-forever CLIs for devs who are tired of paywalls:

@v0idd0/jsonyo — JSON that yells at you when it's broken
@v0idd0/tokcount — token counter for 60+ LLMs (GPT-5.4, Claude Opus 4.7, Gemini 3.1, Llama 4, Grok 4.1)
@v0idd0/ctxstuff — stuff a repo into an LLM context window
@v0idd0/promptdiff — diff two prompts with token impact + word-frequency delta
@v0idd0/httpwut — HTTP debugger with DNS/TCP/TLS phase timing

Full catalog: tools.voiddo.com.