## Changes
Enable errcheck linter for the whole codebase.
Fix remaining complaints:
- If we can propagate error to caller, do that
- If we writing to stdout, continue ignoring errors (to avoid crashing
in "cli | head" case)
- Add exception for cobra non-critical API such as
MarkHidden/MarkDeprecated/RegisterFlagCompletionFunc. This keeps current
code and behaviour, to be decided later if we want to change this.
- Continue ignoring errors where that is desired behaviour (e.g.
git.loadConfig).
- Continue ignoring errors where panicking seems riskier than ignoring
the error.
- Annotate cases in libs/dyn with //nolint:errcheck - to be addressed
later.
Note, this PR is not meant to come up with the best strategy for each
case, but to be a relative safe change to enable errcheck linter.
## Tests
Existing tests.
## Changes
This diagnostics type allows us to capture multiple warnings as well as
errors in the return value. This is a preparation for returning
additional warnings from mutators in case we detect non-fatal problems.
* All return statements that previously returned an error now return
`diag.FromErr`
* All return statements that previously returned `fmt.Errorf` now return
`diag.Errorf`
* All `err != nil` checks now use `diags.HasError()` or `diags.Error()`
## Tests
* Existing tests pass.
* I confirmed no call site under `./bundle` or `./cmd/bundle` uses
`errors.Is` on the return value from mutators. This is relevant because
we cannot wrap errors with `%w` when calling `diag.Errorf` (like
`fmt.Errorf`; context in https://github.com/golang/go/issues/47641).
## Changes
Now we can define variables with values which reference different
Databricks resources by name.
When references like this, DABs automatically looks up the resource by
this name and replaces the reference with ID of the resource referenced.
Thus when the variable is used in the configuration it will contain the
correct resolved ID of resource.
The resolvers are code generated and thus DABs support referencing all
resources which has `GetByName`-like methods in Go SDK.
### Example
```
variables:
my_cluster_id:
description: An existing cluster.
lookup:
cluster: "12.2 shared"
resources:
jobs:
my_job:
name: "My Job"
tasks:
- task_key: TestTask
existing_cluster_id: ${var.my_cluster_id}
targets:
dev:
variables:
my_cluster_id:
lookup:
cluster: "dev-cluster"
```
## Tests
Added unit test + manual testing
---------
Co-authored-by: shreyas-goenka <88374338+shreyas-goenka@users.noreply.github.com>
Denis Bilenko
Pieter Noordhuis
Andrew Nester