sschaal2 / ign-bazel

ignition-bazel provides a set of Bazel build rules that are used by the Ignition projects.

ign-bazel

ignition-bazel provides a set of Bazel build rules that are used by the Ignition projects.

Building Ignition with Bazel

Currently (for Ignition Dome), each Ignition package has a bazel branch to maintain the build rules necessary for that package.

To build, we make the assumption that all necessary libraries and dependencies are checked out in a single directory. For compatilbility, we use underscores (_) to delimit the names, rather than the typical dashes.

The following instructions assume that you are using Ubuntu 18.04

Installing Bazel

It is best to use the Bazel Instructions to install for your platform.

For Ubuntu 18.04:

sudo apt install curl gnupg
curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list

sudo apt update && sudo apt install bazel

Setting up the workspace

To begin with, make a directory to contain all of the Ignition packages and dependencies:

mkdir ~/ignition/
cd ~/ignition/

Then clone each of the Ignition packages. For convenience, we have provided a .repos file that can be used by vcstool

wget https://raw.githubusercontent.com/ignitionrobotics/ign-bazel/master/example/bazel.repos
vcs import . < bazel.repos

You can then install all necessary apt dependencies with the following:

sudo apt-get update
sudo apt-get install -y -qq --no-install-recommends \
  $(sort -u $(find . -iname 'packages.apt') | tr '\n' ' ')

Finally, it is necessary to add a few files for bazel

cd ~/ignition
ln -sf ./ign_bazel/example/WORKSPACE.example ./WORKSPACE
ln -sf ./ign_bazel/example/BUILD.example ./BUILD.bazel
ln -sf ./ign_bazel/example/bazelrc.example ./.bazelrc

Building with Bazel

Once the workspace is setup, building with bazel is straightforward.

cd ~/ignition
bazel build //...

To test:

bazel test //...