[FEATURE] support item-definition for lakehouse items

[Guust-Franssens]

Use Case / Problem

Lakehouse item now supports item definition, this means that now the CLI should support import and export for lakehouse item_type.

This would simplify CI/CD scenarios where you are looping over a folder with Fabric items and deploying using the import command. Currently you need to separately handle the lakehouse item.

In addition the current error message for non-supported import items isn't super clear.

fab import ws1.workspace/lh1.lakehouse -i ./src/lh1.Lakehouse/
x import: [UnsupportedCommand] not supported for command 'import'

Proposed Solution

Remove code restriction on import and export for lakehouses as it is now supported.

Alternatives Considered

Current workaround is to check the item type when deploying from a folder and if type == "lakehouse" then use mkdir instead. However it would be better to use import as then you can use the full definition

Impact Assessment

• This would help me personally
• This would help my team/organization
• This would help the broader fabric-cli community
• This aligns with Microsoft Fabric roadmap items

Implementation Attestation

• I understand this feature should maintain backward compatibility with existing commands
• I confirm this feature request does not introduce performance regressions for existing workflows
• I acknowledge that new features must follow fabric-cli's established patterns and conventions

Implementation Notes

I have made the following minor changes locally and to make the import for lakehouse works:

• removed

  fabric-cli/src/fabric_cli/commands/fs/impor/fab_fs_import_item.py

  Lines 32 to 37 in 1fce5c0

  	# Input path only support from local directories
  	if input_path["type"] == "lakehouse":
  	raise FabricCLIError(
  	"Import from Lakehouse/Files not supported",
  	fab_constant.ERROR_NOT_SUPPORTED,
  	)

• added lakehouse here
  

  fabric-cli/src/fabric_cli/core/fab_config/command_support.yaml

  Lines 249 to 269 in 1fce5c0

  	import:
  	supported_items:
  	- report
  	- spark_job_definition
  	- semantic_model
  	- notebook
  	- kql_dashboard
  	- data_pipeline
  	- kql_queryset
  	- eventhouse
  	- kql_database
  	- mirrored_database
  	- reflex
  	- eventstream
  	- mounted_data_factory
  	- environment
  	- copy_job
  	- variable_library
  	- graph_ql_api
  	- dataflow
  	- sql_database

  
  and here
  

  fabric-cli/src/fabric_cli/core/hiearchy/fab_item.py

  Lines 105 to 122 in 1fce5c0

  	case (
  	ItemType.REPORT
  	| ItemType.SEMANTIC_MODEL
  	| ItemType.KQL_DASHBOARD
  	| ItemType.DATA_PIPELINE
  	| ItemType.KQL_QUERYSET
  	| ItemType.EVENTHOUSE
  	| ItemType.KQL_DATABASE
  	| ItemType.MIRRORED_DATABASE
  	| ItemType.REFLEX
  	| ItemType.EVENTSTREAM
  	| ItemType.MOUNTED_DATA_FACTORY
  	| ItemType.COPYJOB
  	| ItemType.VARIABLE_LIBRARY
  	| ItemType.GRAPHQLAPI
  	| ItemType.DATAFLOW
  	| ItemType.SQL_DATABASE
  	):

[microsoft-github-policy-service]

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