[ci skip] Break out Compiling into COMPILING.md

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ashthespy 2019-11-12 11:09:24 +01:00
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# Compiling
## Setup
In order to compile librespot, you will first need to set up a suitable Rust build environment, with the necessary dependencies installed. You will need to have a C compiler, Rust, and the development libraries for the audio backend(s) you want installed. These instructions will walk you through setting up a simple build environment.
### Install Rust
The easiest, and recommended way to get Rust is to use [rustup](https://rustup.rs). You can install `rustup` with this command:
```bash
curl https://sh.rustup.rs -sSf | sh
```
Follow any prompts it gives you to install Rust. Once thats done, Rust's standard tools should be setup and ready to use.
*Note: The current minimum required Rust version is 1.33.0*
#### Additional Rust tools - `rustfmt`
To ensure a consistent codebase, we utilise [`rustfmt`](https://github.com/rust-lang/rustfmt), which is installed by default with `rustup` these days, else it can be installed manually with:
```bash
rustup component add rustfmt
```
Using `rustfmt` is not optional, as our CI checks against this repo's rules.
### General dependencies
Along with Rust, you will also require a C compiler.
On Debian/Ubuntu, install with:
```shell
sudo apt-get install build-essential
```
On Fedora systems, install with:
```shell
sudo dnf install gcc
```
### Audio library dependencies
Depending on the chosen backend, specific development libraries are required.
*_Note this is an non extensive list, open a PR to add to it!_*
| Audio backend | Debian/Ubuntu | Fedora | macOS |
|--------------------|------------------------------| ------------------------------| -- |
|Rodio (default)| `libasound2-dev` | `alsa-lib-devel` |
|ALSA| `libasound2-dev, pkg-config` |`alsa-lib-devel` |
|PortAudio| `portaudio19-dev`| `portaudio-devel`| `portaudio`
|PulseAudio| `libpulse-dev`| `pulseaudio-libs-devel` |
|JACK| `libjack-dev` | `jack-audio-connection-kit-devel` |
|SDL| `libsdl2-dev`| `SDL2-devel` |
|Pipe| - | - | - |
###### For example, to build an ALSA based backend, you would need to run the following:
On Debian/Ubuntu:
```shell
sudo apt-get install libasound2-dev pkg-config
```
On Fedora systems:
```shell
sudo dnf install alsa-lib-devel
```
### Getting the Source
The recommended method is to first fork the repo, so that you have a copy that you have read/write access to. After that, its a simple case of cloning your fork.
```bash
git clone git@github.com:YOURUSERNAME/librespot.git
cd librespot
```
## Compiling & Running
Once your build environment is setup, compiling the code is pretty simple.
### Compiling
To build a ```debug``` build, from the project root:
```bash
cargo build
```
And for ```release```:
```bash
cargo build --release
```
You will most likely want to build debug builds when developing, as they are faster, and more verbose, for the purposes of debugging.
There are also a number of compiler feature flags that you can add, in the event that you want to have certain additional features also compiled. The list of these is available on the [wiki](https://github.com/librespot-org/librespot/wiki/Compiling#addition-features).
By default, librespot compiles with the ```rodio-backend``` feature. To compile without default features, you can run with:
```bash
cargo build --no-default-features
```
### Running
Assuming you just compiled a ```debug``` build, you can run librespot with the following command:
```bash
./target/debug/librespot -n Librespot
```
There are various runtime options, documented in the wiki, and visible by running librespot with the ```-h``` argument.

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# Contributing
## Setup
In order to contribute to librespot, you will first need to set up a suitable Rust build environment, with the necessary dependencies installed. These instructions will walk you through setting up a simple build environment.
You will need to have a C compiler, Rust, and the development libraries for the audio backend(s) you want installed.
### Install Rust
The easiest, and recommended way to get Rust is to use [rustup](https://rustup.rs). You can install `rustup` with this command:
```bash
curl https://sh.rustup.rs -sSf | sh
```
Follow any prompts it gives you to install Rust. Once thats done, Rust's standard tools should be setup and ready to use.
#### Additional Rust tools - `rustfmt`
To ensure a consistent codebase, we utilise [`rustfmt`](https://github.com/rust-lang/rustfmt), which is installed by default with `rustup` these days, else it can be installed manually with:
```bash
rustup component add rustfmt
```
Using `rustfmt` is not optional, as our CI checks against this repo's rules.
### General dependencies
Along with Rust, you will also require a C compiler.
On Debian/Ubuntu, install with:
```shell
sudo apt-get install build-essential
```
On Fedora systems, install with:
```shell
sudo dnf install gcc
```
### Audio library dependencies
Depending on the chosen backend, specific development libraries are required.
*_Note this is an non extensive list, open a PR to add to it!_*
| Audio backend | Debian/Ubuntu | Fedora | macOS |
|--------------------|------------------------------| ------------------------------| -- |
|Rodio (default)| `libasound2-dev` | `alsa-lib-devel` |
|ALSA| `libasound2-dev, pkg-config` |`alsa-lib-devel` |
|PortAudio| `portaudio19-dev`| `portaudio-devel`| `portaudio`
|PulseAudio| `libpulse-dev`| `pulseaudio-libs-devel` |
|JACK| `libjack-dev` | `jack-audio-connection-kit-devel` |
|SDL| `libsdl2-dev`| `SDL2-devel` |
|Pipe| - | - | - |
###### For example, to build an ALSA based backend, you would need to run the following:
On Debian/Ubuntu:
```shell
sudo apt-get install libasound2-dev pkg-config
```
On Fedora systems:
```shell
sudo dnf install alsa-lib-devel
```
### Getting the Source
The recommended method is to first fork the repo, so that you have a copy that you have read/write access to. After that, its a simple case of cloning your fork.
```bash
git clone git@github.com:YOURUSERNAME/librespot.git
cd librespot
```
## Compiling & Running
Once your build environment is setup, compiling the code is pretty simple.
### Compiling
To build a ```debug``` build, from the project root:
```bash
cargo build
```
And for ```release```:
```bash
cargo build --release
```
You will most likely want to build debug builds when developing, as they are faster, and more verbose, for the purposes of debugging.
There are also a number of compiler feature flags that you can add, in the event that you want to have certain additional features also compiled. The list of these is available on the [wiki](https://github.com/librespot-org/librespot/wiki/Compiling#addition-features).
By default, librespot compiles with the ```rodio-backend``` feature. To compile without default features, you can run with:
```bash
cargo build --no-default-features
```
### Running
Assuming you just compiled a ```debug``` build, you can run librespot with the following command:
```bash
./target/debug/librespot -n Librespot
```
There are various runtime options, documented in the wiki, and visible by running librespot with the ```-h``` argument.
## Reporting an Issue
Issues are tracked in the Github issue tracker of the librespot repo.