[Buildroot] How to get the (GIT) Version string into the source code

[Christian Stewart]

Hi Wolfgang,


On Thu, Oct 10, 2019, 6:54 AM Wolfgang Grandegger <wg at grandegger.com> wrote:

> I'm looking for a simple method to get the package version string used
> by buildroot into the source code of that package. Unfortunately, the
> GIT version information is stripped off. For the moment, I use the name
> of the build directory and pass it to the code via Makefile, but maybe
> there is a more elegant version.
>

See package/docker-engine/docker-engine.mk for an example. Here is a
permalink;

DOCKER_ENGINE_LDFLAGS = \
-X main.GitCommit=$(DOCKER_ENGINE_VERSION) \
-X main.Version=$(DOCKER_ENGINE_VERSION)

You should use the $(MY_PACKAGE_VERSION) string as your version string.

If you want more details from "git describe" then unfortunately it's not as
easy as code often comes from a tarball exported from the source repo
rather than a full clone.

Best,
Christian Stewart
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