Three of these runtimes are based on upb, and the fourth is based on the Java runtime. Both of these already have editions support, so this was mostly just a matter of:
- Advertising support to allow editions codegen
- Stripping features from the runtime options
- Hooking up conformance tests
- Adding some lightweight editions tests
There are also a few minor orthogonal fixes included here:
- Ruby's upb hack for treating all enums as open enums needed tweaking
- The `enable_editions` flag is no longer needed in our internal proto rules
PiperOrigin-RevId: 616256211
* Set execute bit on files if and only if they begin with (#!).
Git only tracks the 'x' (executable) bit on each file. Prior to this
CL, our files were a random mix of executable and non-executable.
This change imposes some order by making files executable if and only
if they have shebang (#!) lines at the beginning.
We don't have any executable binaries checked into the repo, so
we shouldn't need to worry about that case.
* Added fix_permissions.sh script to set +x iff a file begins with (#!).
- A golden-file test that ensures protoc produces known-valid output.
- A Ruby test that loads that golden file and ensures it actually works
with the extension.
This split strategy allows us to test end-to-end without needing to
integrate the Ruby gem build system and the protoc build system. This is
desirable because we do not want a gem build/install to depend on
building protoc, and we do not want building protoc to depend on
building and testing the gem.
