- For each OS, builds of the default compiler plus the
latest-supported compilers are run. When multiple operating systems
are supported (such as Ubuntu 16.04 and latest), a build on
the oldest OS using its default compiler is also performed.
- Debug builds are used because they often are more thorough at
detecting coding issues (debug warning counts are higher).
- Runtime dynamic sanitizers are added and serialized per-compiler.
Their build and runtime log-files are xz-compressed, and then
GitHub's asset upload Zips the log directory.
- Each workflow now holds the maximum allowed compiler warnings
per-build, so we can have tighter control of when new warnings
are introduced (that would otherwise pass if still below the
maximum)
- Use of github's new 'cache' feature has been leveraged to restore
the brew, macports, and msys2 environments to eliminate the
lenghthy setup times for those environments. If a new cache
is needed, then we simply increment the cache `key:` value and
the next CI run will archive new caches. (Note that GitHub has a
400MB limit on cache size however they have already said they
are raising it - so we might be able to cache out longest running
job which is MSYS+Clang)
- Where it makes sense, multi-line workflow statements have been
broken out into .github/scripts as files to make the workflow YAML
leaner and more readable, while giving us a richer environment in
the scripts.
