databricks-cli/libs/databrickscfg
shreyas-goenka 41a21af556
Refactor `bundle init` (#2074)
## Summary of changes
This PR introduces three new abstractions: 
1. `Resolver`: Resolves which reader and writer to use for a template.
2. `Writer`: Writes a template project to disk. Prompts the user if
necessary.
3. `Reader`: Reads a template specification from disk, built into the
CLI or from GitHub.

Introducing these abstractions helps decouple reading a template from
writing it. When I tried adding telemetry for the `bundle init` command,
I noticed that the code in `cmd/init.go` was getting convoluted and hard
to test. A future change could have accidentally logged PII when a user
initialised a custom template.

Hedging against that risk is important here because we use a generic
untyped `map<string, string>` representation in the backend to log
telemetry for the `databricks bundle init`. Otherwise, we risk
accidentally breaking our compliance with our centralization
requirements.

### Details

After this PR there are two classes of templates that can be
initialized:
1. A `databricks` template: This could be a builtin template or a
template outside the CLI like mlops-stacks, which is still owned and
managed by Databricks. These templates log their telemetry arguments and
template name.
2. A `custom` template: These are templates created by and managed by
the end user. In these templates we do not log the template name and
args. Instead a generic placeholder string of "custom" is logged in our
telemetry system.

NOTE: The functionality of the `databricks bundle init` command remains
the same after this PR. Only the internal abstractions used are changed.

## Tests
New unit tests. Existing golden and unit tests. Also a fair bit of
manual testing.
2025-01-20 12:09:28 +00:00
..
cfgpickers Refactor `bundle init` (#2074) 2025-01-20 12:09:28 +00:00
profile Enable testifylint and fix the issues (#2065) 2025-01-02 12:03:41 +01:00
host.go Try to resolve a profile if only the host is specified (#287) 2023-03-29 20:44:19 +02:00
host_test.go Try to resolve a profile if only the host is specified (#287) 2023-03-29 20:44:19 +02:00
loader.go Enable perfsprint linter and apply autofix (#2071) 2025-01-07 10:49:23 +00:00
loader_test.go Improve token refresh flow (#1434) 2024-05-16 10:22:09 +00:00
ops.go Update error checks that use the `os` package to use `errors.Is` (#1461) 2024-06-03 12:39:36 +00:00
ops_test.go Enable testifylint and fix the issues (#2065) 2025-01-02 12:03:41 +01:00