Sheeter

Convert data files between formats from the command line.

Eight formats, fifty-six routes. CSV, TSV, JSON, YAML, XML, TOML, XLSX, SQL — any direction, through a single canonical hub.

Install

cargo install sheeter-engine

The installed binary is sheeter.

Usage

sheeter convert --from <FMT> --to <FMT> [--sheet NAME] [--dialect NAME] <input> <output>

Formats: csv, tsv, json, yaml, xml, toml, xlsx, sql.

# SQL INSERT statements → CSV
sheeter convert --from sql --to csv data.sql data.csv

# SQL with PostgreSQL dialect
sheeter convert --from sql --to json --dialect postgresql data.sql data.json

# CSV → SQL (table name from filename)
sheeter convert --from csv --to sql users.csv users.sql
# writes INSERT INTO "users" ...

# Multi-table SQL → one CSV per table
sheeter convert --from sql --to csv dump.sql out.csv
# writes out.users.csv, out.orders.csv, ...

How it works

Every reader produces a CanonicalValue; every writer consumes one. Adding a new format costs one reader and one writer, not N-1 pairwise converters.

Versioning

This project follows Semantic Versioning 2.0.0. Changelog follows Keep a Changelog 1.1.0. Commit messages follow Conventional Commits 1.0.0.