https://github.com/simonw/yaml-to-sqlite

Utility for converting YAML files to SQLite
https://github.com/simonw/yaml-to-sqlite

datasette-io datasette-tool sqlite yaml

Last synced: about 2 months ago
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Utility for converting YAML files to SQLite

• Host: GitHub
• URL: https://github.com/simonw/yaml-to-sqlite
• Owner: simonw
• License: apache-2.0
• Created: 2019-03-14T04:49:08.000Z (almost 6 years ago)
• Default Branch: main
• Last Pushed: 2022-04-08T18:11:14.000Z (over 2 years ago)
• Last Synced: 2024-05-01T23:18:05.598Z (8 months ago)
• Topics: datasette-io, datasette-tool, sqlite, yaml
• Language: Python
• Homepage:
• Size: 18.6 KB
• Stars: 71
• Watchers: 4
• Forks: 9
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# yaml-to-sqlite

[![PyPI](https://img.shields.io/pypi/v/yaml-to-sqlite.svg)](https://pypi.org/project/yaml-to-sqlite/)

[![Changelog](https://img.shields.io/github/v/release/simonw/yaml-to-sqlite?include_prereleases&label=changelog)](https://github.com/simonw/yaml-to-sqlite/releases)

[![Tests](https://github.com/simonw/yaml-to-sqlite/workflows/Test/badge.svg)](https://github.com/simonw/yaml-to-sqlite/actions?query=workflow%3ATest)

[![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](https://github.com/simonw/yaml-to-sqlite/blob/main/LICENSE)

Load the contents of a YAML file into a SQLite database table.

```

$ yaml-to-sqlite --help

Usage: yaml-to-sqlite [OPTIONS] DB_PATH TABLE YAML_FILE

  Convert YAML files to SQLite

Options:

  --version             Show the version and exit.

  --pk TEXT             Column to use as a primary key

  --single-column TEXT  If YAML file is a list of values, populate this column

  --help                Show this message and exit.

```

## Usage

Given a `news.yml` file containing the following:

```yaml

- date: 2021-06-05

  body: |-

    [Datasette 0.57](https://docs.datasette.io/en/stable/changelog.html#v0-57) is out with an important security patch.

- date: 2021-05-10

  body: |-

    [Django SQL Dashboard](https://simonwillison.net/2021/May/10/django-sql-dashboard/) is a new tool that brings a useful authenticated subset of Datasette to Django projects that are built on top of PostgreSQL.

```

Running this command:

```bash

$ yaml-to-sqlite news.db stories news.yml

```

Will create a database file with this schema:

```bash

$ sqlite-utils schema news.db

CREATE TABLE [stories] (

   [date] TEXT,

   [body] TEXT

);

```

The `--pk` option can be used to set a column as the primary key for the table:

```bash

$ yaml-to-sqlite news.db stories news.yml --pk date

$ sqlite-utils schema news.db

CREATE TABLE [stories] (

   [date] TEXT PRIMARY KEY,

   [body] TEXT

);

```

## Single column YAML lists

The `--single-column` option can be used when the YAML file is a list of values, for example a file called `dogs.yml` containing the following:

```yaml

- Cleo

- Pancakes

- Nixie

```

Running this command:

```bash

$ yaml-to-sqlite dogs.db dogs.yaml --single-column=name

```

Will create a single `dogs` table with a single `name` column that is the primary key:

```bash

$ sqlite-utils schema dogs.db

CREATE TABLE [dogs] (

   [name] TEXT PRIMARY KEY

);

$ sqlite-utils dogs.db 'select * from dogs' -t

name

--------

Cleo

Pancakes

Nixie

```