This project includes a TypeScript script that estimates a user's daily lines changed (additions + deletions) over the last 12 months (or any window you choose). The chart plots daily churn as a line, with red markers at the start of each week labeled with that week's total.

By default, changes in files named package-lock.json are excluded from totals.

1. Tries to read repositories from the user's contribution graph (GraphQL).
2. Falls back to repositories owned by the user if GraphQL is unavailable.
3. Fetches commits authored by that user in each repo for the time range.
4. Fetches commit stats and aggregates by day.
5. Writes:
   • weekly_churn.csv (one row per day)
   • weekly_churn.png (daily line/area chart with weekly-total markers)

bun install

Run:

bun start -- <github_username> 

Recommended (to avoid strict rate limits):

export GITHUB_TOKEN=ghp_your_token_here
bun start -- <github_username> 

Useful flags:

bun start -- <github_username> \
  --months 6 \
  --csv weekly_out.csv \
  --plot weekly_out.png \
  --max-repos 100 \
  --sleep-between-calls 0.05

Skip PNG output:

bun start -- <github_username> --no-plot

• This is an estimate based on commit stats from the GitHub API, grouped by day (UTC). Weekly marker totals use week start = Monday, UTC.
• Large histories can consume API quota quickly because commit stats require per-commit detail calls.
• Without GITHUB_TOKEN, the script is likely to hit rate limits.
• For heavy users with many repos/commits, you may need to reduce scope or run with pauses.