I followed the instructions on
https://github.com/polybar/polybar/wiki/Testing, and this happened to
me:
$ cmake .. -DBUILD_TESTS=ON
...
[ 11%] Creating directories for 'googletest'
[ 22%] Performing download step (git clone) for 'googletest'
Cloning into 'googletest-src'...
fatal: invalid reference: master
CMake Error at googletest-download/googletest-prefix/tmp/googletest-gitclone.cmake:40 (message):
Failed to checkout tag: 'master'
make[2]: *** [CMakeFiles/googletest.dir/build.make:99: googletest-prefix/src/googletest-stamp/googletest-download] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/googletest.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
CMake Error at tests/CMakeLists.txt:19 (message):
Build step for googletest failed: 2
It looks like the problem is that
[googletest](https://github.com/google/googletest/) changed their branch from
`master` to `main` at some point.
I also fixed a broken link
https://github.com/polybar/polybar/wiki/Testing. Hopefully it's
intentional that random members of the public such as myself are allowed
to do that?
In master gtest fails to build with the error
/home/travis/build/polybar/polybar/build/googletest-src/googlemock/include/gmock/gmock-more-actions.h:138:1: error: ISO C++11 requires at least one argument for the "..." in a variadic macro [-Werror]
ACTION_P(ReturnPointee, pointer) { return *pointer; }
We had a lot of failed builds because gtest often breaks stuff in
master. From now on we will just use a release tag. Whenever there is a
new release, we manually update this file.
Ref: google/googletest#2678
