Fix vscode extension crashes on windows

[moker-spaghetti]

1. Fix command name on windows to "dataform.cmd".
2. Add error handling to prevent whole extension crash.

I'm not sure how to run linter (I tried to run scripts/lint, but it ended up with an error could not require "tslint-config-prettier".), so I'd appreciate any advice you can offer.
Also, since this is my first PR to this project, please let me know if you notice any issues.

[Ekrekr]

1. Fix command name on windows to "dataform.cmd".
2. Add error handling to prevent whole extension crash.

I'm not sure how to run linter (I tried to run scripts/lint, but it ended up with an error could not require "tslint-config-prettier".), so I'd appreciate any advice you can offer. Also, since this is my first PR to this project, please let me know if you notice any issues.

I think we don't actually have any tests for the VSCode extension, looking at the vscode/BUILD file!

Can you share me your gmail address, and I will allowlist you to run the tests and CI pipeline anyway? You will be able to merge after that.

I've assigned @GJMcGowan for review, as he is able to publish changes.

[moker-spaghetti]

@Ekrekr My gmail address is moker0spaghetti@gmail.com, thank you!

[moker-spaghetti]

@Ekrekr Thank you for the invitation to the group. I signed into the above account with gcloud auth login and run scripts/run_tests, but it ended up in the error below.

ERROR: /workspaces/dataform/test_credentials/BUILD:5:14: Action test_credentials/bigquery.json failed: (Exit 1): gcloud failed: error executing command external/gcloud_sdk/bin/gcloud kms decrypt '--ciphertext-file=test_credentials/bigquery.json.enc' '--plaintext-file=bazel-out/k8-py2-fastbuild/bin/test_credentials/bigquery.json' ... (remaining 4 arguments skipped)
ERROR: (gcloud.kms.decrypt) PERMISSION_DENIED: Permission 'cloudkms.cryptoKeyVersions.useToDecrypt' denied on resource 'projects/dataform-open-source/locations/global/keyRings/dataform-builder-keyring/cryptoKeys/dataform-builder-key' (or it may not exist).

Also, I could not see any project listed in my Google Cloud Console.
Do you have any advice?

[Ekrekr]

Hi Moker,

I've granted some permissions for people in the dataform-open-source-contributors Google group. If everything works, you should now be able to:

• Run ./scripts/run_tests.
• Re-run the pull-request-trigger failed CI.

Let me know if this works!

Thanks.

[Ekrekr]

Sorry, you won't be able to run these commands yet - there are some privacy and compliance exceptions I need to investigate.

[GJMcGowan]

LGTM, thank you for the fix!

[GJMcGowan]

@moker-spaghetti - thanks for the fix, this is now published on the extension store.