anki/docs/linux.md
2021-10-12 16:19:27 +10:00

3.8 KiB

Linux

Requirements

These instructions are written for Debian/Ubuntu; adjust for your distribution. Some extra notes have been provided by a forum member: https://forums.ankiweb.net/t/guide-how-to-build-and-run-anki-from-source-with-xubuntu-20-04/12865

Glibc is required - if you are on a distro like Alpine that uses musl, you'll need to contribute fixes to the upstream Rust rules, then follow the steps in Other Platforms.

Ensure some basic tools are installed:

$ sudo apt install bash grep findutils curl gcc g++ git

The 'find' utility is 'findutils' on Debian.

Install Python 3.9:

If you're on a modern distribution, you may be able to install Python from the repo:

$  sudo apt install python3.9

If you are using a packaged Python version that is installed in /usr/bin, you can jump immediately to the next section after ensuring python3.9-distutils is installed.

If Python 3.9 is not available in your distro, you can download it from python.org, compile it, and install it in /usr/local. If you're on a basic Debian install, make sure you have the following installed before building Python:

gcc g++ make libsqlite3-dev libreadline-dev libssl-dev zlib1g-dev libffi-dev

Bazel does not look in /usr/local by default. If you've installed Python somewhere other than /usr/bin, you'll need to put the following into a file called user.bazelrc at the top of this repo before proceeding:

build --action_env=PYO3_PYTHON=/usr/local/bin/python3.9

If you're building Anki from a docker container or distro that has no python command in /usr/bin, you'll need to symlink python to /usr/bin/python. /usr/bin/python does not need to be Python 3.9; any version will do. apt install python-is-python3 can also be used to link python3 to python.

If your system only has Python 3.9, you should be able to build Anki with it, but the pylint tests may fail.

Anki's build system will not place packages in system locations, so you do not need to build with an active Python virtual environment, and building outside of one is recommended.

Install Bazelisk:

Download it under the name 'bazel':

$ curl -L https://github.com/bazelbuild/bazelisk/releases/download/v1.7.4/bazelisk-linux-amd64 -o ./bazel

And put it on your path:

$ chmod +x bazel && sudo mv bazel /usr/local/bin/

Running Anki during development

From the top level of Anki's source folder:

./run

This will build Anki and run it in place.

The first build will take a while, as it downloads and builds a bunch of dependencies. When the build is complete, Anki will automatically start.

The Javascript build code is currently a bit flaky, so the initial build may fail with an error. If you get an error when running/building, try repeating the command once or twice - it should pick up where it left off.

To play and record audio, install mpv and lame.

If you or your distro has made ccache the standard compiler, you will need to set CC and CXX to point directly to gcc/g++ or clang/clang++ prior to building Anki.

Missing Libraries

If you get errors during startup, try starting with

QT_DEBUG_PLUGINS=1 ./run

It will likely complain about missing libraries, which you can install with your package manager. Some of the libraries that might be required on Debian for example:

sudo apt install libxcb-icccm4 libxcb-image0 libxcb-keysyms1 \
  libxcb-randr0 libxcb-render-util0

Optimized builds

The ./run command will create a non-optimized build by default. This is faster to compile, but will mean Anki will run considerably slower.

To run Anki in optimized mode, use:

./scripts/runopt

More

For info on running tests, building wheels and so on, please see Development.