std.jsonnet dependecy not found / cpp-jsonnet sub repo pull unsuccessful

[vexvec]

Updating the jsonnet dependencies with ./update_cpp_jsonnet.sh does not work.

The ast generation command fails due to the missing std.jsonnet file.

go run cmd/dumpstdlibast/dumpstdlibast.go cpp-jsonnet/stdlib/std.jsonnet > astgen/stdast.go

Building the jsonnet binary works nevertheless, but the stdlib is outdated.

Replacing 'git pull' with 'git clone https://github.com/google/jsonnet' in ./update_cpp_jsonnet.sh does the job.

I'm not sure why the pull operation is not working, if it's a problem on my side or with the subrepo.

However, fixing this issue should also fix #571. After the described change above the option was available for me.

[johnbartholomew]

It looks like the update_cpp_jsonnet.sh script is not very robust. It should initialize the submodule first using the relevant git submodule command.