Basic Unit Converter

This is a command-line application written in Rust that allows you to convert between different units of measurement, including currencies.

Currently only a hand full units are supported, but more can be added by creating a corresponding enum in src/units.rs, implementing the Unitlike trait for the enum, and adding the new unit type to the high-level Unit enum.

Currency conversion is supported by using the Open Exchange Rates API. The application will fetch the latest exchange rates on request (if the stored rates are older than 1 week, see src/currency.rs) and cache them. On exit, the cache will be saved to a SQLite database and reloaded on startup.

Usage Example

$ 1 km -> m
1000 meter (m)

$ 1 USD -> EUR
0.940365 EUR

$ help
Commands:
- <value> <unit> -> <unit>: Convert a value to another unit.
- units: List all available units.
- help: Show this help message.
- exit: Exit the program.

$ exit

Getting Started

Pre-requisites

1. Rust + Cargo
2. SQLite
3. Open Exchange Rates API key stored as environment variable OPENEXCHANGERATES_APP_ID

Running the application

1. Clone the repository

   git clone https://github.com/BraSDon/convert.rs.git

2. Change into the project directory

   cd convert.rs

3. Build the project

   cargo build

4. Run the project

   cargo run