[CMake] Question about getting git branch name.

[J Decker]

On Sat, Jun 8, 2019 at 3:25 PM Steven Truppe <workbench at gmx.at> wrote:

> Hi everyone,
>
> i want to have code lines like:
>
> #define BUILD_VERSION
>
> and the BUILD_VERSION should be the name of the actual branch the code
> was compiled with, this way i can create a branch for each version and
> name it like 0.1 so each version i'm using for release is an own branch.
>
> I found many examples that shows me the branch name (like git status)
>
git branch
Hmm this shows a list of things, have to extract the one with a * on the
beginning... cam probably use CMAKE list functions on the output.


EXECUTE_PROCESS(WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} COMMAND git rev-list
--max-count=1 HEAD OUTPUT_VARIABLE CURRENT_REPO_REVISION )

gives me the last hash...

but i don't know a way to get only the name of the current branch so i
> can for example execute_process to get the revision number into a
> variable and then use add_definition(..) to add it as a compile definition.
>
>
> best regards!
>
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