toolkit: fromCdkAppDirectory

[rix0rrr]

Describe the feature

toolkit.fromCdkApp() currently requires you to pass all parameters in directly (app, context, etc)...

We should also have something like toolkit.fromCdkAppDirectory() where we read all the settings from cdk.json, just like the CLI would do.

Use Case

Mimic CLI

Proposed Solution

No response

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

Environment details (OS name and version, etc.)

[mrgrain]

Yeah. Needs support for context reading and writing.

The tricky part is that cdk.json settings are CLI options, not toolkit-lib options. For better or worse we made the decision to diverge between them.

We might need to introduce and maintain a helper that explicitly maps between CLI and toolkit-lib options where possible. Note that it won't always be easily possible, e.g. with approvals or things like build that are a CloudAssemblySource feature.

[rix0rrr]

User-input-gen should generate that mapper