https://github.com/probablykasper/csv-pipeline

https://github.com/probablykasper/csv-pipeline

Last synced: 27 days ago
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• Host: GitHub
• URL: https://github.com/probablykasper/csv-pipeline
• Owner: probablykasper
• Created: 2022-12-30T09:55:13.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2023-09-05T01:18:16.000Z (almost 3 years ago)
• Last Synced: 2025-02-28T05:24:34.477Z (over 1 year ago)
• Language: Rust
• Size: 158 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Funding: .github/FUNDING.yml

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README

          
# CSV Pipeline

CSV processing library inspired by [csvsc](https://crates.io/crates/csvsc)

[![Crates.io](https://img.shields.io/crates/v/csv-pipeline.svg)](https://crates.io/crates/csv-pipeline)

[![Documentation](https://docs.rs/csv-pipeline/badge.svg)](https://docs.rs/csv-pipeline)

## Example

```rs

use csv_pipeline::{Pipeline, Transformer};

let source = "\

  Person,Score\n\

  A,1\n\

  A,8\n\

  B,3\n\

  B,4\n";

let reader = csv::Reader::from_reader(source.as_bytes());

let csv = Pipeline::from_reader(reader)

  .unwrap()

  .map(|_headers, row| Ok(row))

  // Transform into a new csv

  .transform_into(|| {

    vec![

      // Keep every Person

      Transformer::new("Person").keep_unique(),

      // Sum the scores into a "Total score" column

      Transformer::new("Total score").from_col("Score").sum(0),

    ]

  })

  .collect_into_string()

  .unwrap();

assert_eq!(

  csv,

  "Person,Total score\n\

    A,9\n\

    B,7\n"

);

```

## Dev Instructions

### Get started

Install [Rust](https://www.rust-lang.org).

Run tests:

```

cargo test

```

### Releasing a new version

1. Update `CHANGELOG.md`

2. Bump the version number in `Cargo.toml`

3. Run `cargo test`

4. Run `cargo publish`

5. Create a git tag in format `v#.#.#`

6. Create GitHub release with release notes