[NEOS-1114] Unable to run backend/gen.sh script on Linux

[nickzelei]

The gen.sh script fails due to Docker runs not setting the correct uid/gid.

This causes files to drop in as root which then the bare metal user does not have permissions to move.

example of error:

tai@hulk:~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/code/foss/neosync/backend[main ?]$ make
./hack/gen.sh
mv: cannot move 'gen/docs/proto_docs.json' to '../docs/protos/data/proto_docs.json': Permission denied
mv: cannot move 'gen/es/protos/mgmt' to '../frontend/packages/sdk/src/client/mgmt': Permission denied
rm: cannot remove 'gen/docs/proto_docs.json': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/api_key_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/metrics_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/api_key_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/job_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/user_account_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/connection_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/connection_data_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/job_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/metrics_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/connection_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/auth_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/user_account_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/connection_data_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/auth_pb.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/transformer_connect.ts': Permission denied
rm: cannot remove 'gen/es/protos/mgmt/v1alpha1/transformer_pb.ts': Permission denied
go vet ./...
hack/build.sh
fatal: No names found, cannot describe anything.

This is most likely solvable via setting the uid/gid in the container so that it has the correct permissions when it comes out of the other side. Just need to make sure it's compatible with all systems.

The reporting user's OS is archlinux, with uid of 1000 (default).

_{From SyncLinear.com | NEOS-1114}