feather/HACKING.md
2023-01-23 22:53:34 +01:00

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# Documentation for developers
Feather is developed primarily on Linux, but can also be built and debugged on macOS. Development on Windows is not
currently supported.
## Setting up a development environment
### Dependencies
Note: Feather uses Qt 5.15.* or Qt 6.2+. Make sure your distro's package manager provides these versions.
If not, it is recommended that you install Qt manually using the online installer, which can be found here:
https://www.qt.io/download (under open-source).
#### Arch Linux
```bash
pacman -S git cmake base-devel ccache unbound boost qrencode zbar qt6-base qt6-svg qt6-websockets qt6-multimedia libzip hidapi protobuf
```
#### Ubuntu 22.04
```bash
apt update
apt install git cmake build-essential ccache libssl-dev libunbound-dev libboost-all-dev libqrencode-dev libzbar-dev \
qt6-base-dev libgl1-mesa-dev libqt6svg6-dev libqt6websockets6-dev libzip-dev libsodium-dev libgcrypt-dev \
libx11-xcb-dev libprotobuf-dev libhidapi-dev
```
#### Void Linux
```bash
xbps-install -S base-devel cmake boost-devel openssl-devel unbound-devel libsodium-devel libzbar-devel zlib-devel qt6-base-devel \
qt6-svg-devel qt6-websockets-devel qt6-multimedia-devel libgcrypt-devel libzip-devel hidapi-devel protobuf \
protobuf-devel qrencode-devel
```
#### macOS
For macOS it's easiest to leverage [brew](https://brew.sh) to install the required dependencies.
```bash
brew install qt libsodium libzip qrencode unbound cmake boost hidapi openssl expat libunwind-headers protobuf pkgconfig zbar
```
### Tor daemon
A Tor daemon is required to connect to .onion nodes and the websocket server. Development builds do not include
the Tor binary by default, this can be enabled with `-DTOR_DIR=/path/to/tor`. We recommend running a local Tor daemon
as this prevents Feather from spawning a child process and saves time.
#### Arch Linux
```bash
pacman -S tor
systemctl enable --now tor
```
#### Ubuntu Debian
```bash
apt update && apt install tor
systemctl enable --now tor
```
#### Void Linux
```bash
xbps-install tor
ln -s /etc/sv/tor /var/service/.
sv start tor
```
#### macOS
```bash
brew install tor
brew services restart tor
```
### Clone Feather
```bash
git clone http://github.com/feather-wallet/feather.git
cd feather
git submodule update --init --recursive
```
### Jetbrains Clion (IDE)
We recommend using Jetbrains Clion for Feather development. It integrates nicely with CMake and comes with a built-in
debugger.
To pass CMake flags to CLion, go to `File->Settings->Build->CMake`, set Build Type to `Debug` and set your
preferred CMake options. If you installed Qt using the online installer you may have to add
`-DCMAKE_PREFIX_PATH=/path/to/qt/installation` in the CMake options. More CMake options are documented below.
Run CMake (`View -> Tool Windows -> CMake`). Click on the 🔃 (`Reload CMake Project`) button.
Go to `Run -> Edit configurations` and make sure the `feather` target is selected.
You can add any environment variables and program arguments here:
- For more verbose logging add `MONERO_LOG_LEVEL=1` to environment variables.
- To start Feather in stagenet mode, add `--stagenet` to program arguments.
After the target is configured, `Run -> Run 'feather'` or press Shift + F10 to build Feather.
### Building without IDE
To build Feather without an IDE:
```bash
mkdir build
cd build
cmake ..
cmake --build . -j $(nproc)
```
On platforms without `execinfo.h` use `cmake -DSTACK_TRACE:BOOL=OFF ..` instead of `cmake ..`
### CMake
There are some CMake options that you may pass to control how Feather is built:
- `-DLOCALMONERO=OFF` - disable LocalMonero feature
- `-DXMRIG=OFF` - disable XMRig feature
- `-DCHECK_UPDATES=ON` - enable checking for updates, only for standalone binaries
- `-DDONATE_BEG=OFF` - disable the dreaded donate requests
- `-DUSE_DEVICE_TREZOR=OFF` - disable Trezor hardware wallet support
- `-DWITH_SCANNER=ON` - enable the webcam QR code scanner
- `-DTOR_DIR=/path/to/tor/` - embed a Tor binary in Feather, argument should be a directory containing the binary