How to setup a shared ccache

Question

How can I setup a shared ccache without falling into a permissions problem?

I would like to run a nightly or CI build with latest changes and share all created binaries throughout the R&D using a large ccache repository.

Answer 1

See the newly written Sharing a cache section in ccache's manual. In essence, use the same CCACHE_DIR setting, set CCACHE_UMASK appropriately and consider using CCACHE_BASEDIR.