helloworld c++, bazel, debian packaging, googletest, github actions

Description

Project example with classic helloworld c++ application using bazel build system and github actions

• generate version.h from version.h.in using bazel
• debian package generation using bazel rules_pkg
• googletest example
• use github actions to build and release debian package on each push

Build instruction

• On first checkout run "./update-patch-version.sh 1" to generate patch-version file (version/PATCH_VERSION.bzl).
• You will need fresh bazel binary to build that. The version which comes with Debian 12 or Ubuntu 22 is outdated and will not work.
  • To install bazel localy on your Debian/Ubuntu use google repo like described here or here
  • To install for github actions, use actions-setup-bazel
• First steps with bazel:
  • To get available targets run bazel query ...
  • To build selected target run bazel build <target>, for example
    • to build debian package run bazel build //pkg:helloworld-debian
    • to run all tests run bazel test //...