Tasks returned from fetchTasks do not contain dependsOn information

[bwateratmsft]

• VSCode Version: 1.49.0
• OS Version: Win10 10.0.19041

Steps to Reproduce:

1. Create a task that uses the dependsOn property to depend on another task
2. In extension code, call vscode.tasks.fetchTasks()

Expected:
Task returned would contain all information including dependsOn

Actual:
Task has name and definition, and a few other properties, but does not have dependsOn

Does this issue occur when all extensions are disabled?: N/A

[bwateratmsft]

@alexr00 FYI

[alexr00]

I thought that we already dependsOn in the API, but it looks like we don't.

[bwateratmsft]

Yeah, this is where there was a difference between the config API and the fetchTasks API. As part of our Docker build / run / debug process, we need to build up a task tree, in order to "find" the docker-build / docker-run tasks. Knowing information from those tasks allows us to save a significant amount of time and reduce the complexity of the launch.json and tasks.json files.

So far we've been using the config API which works fine in most cases, but when using workspaces instead of workspace folders, it starts to break down.

I have a work item to switch to mostly/entirely resolveDebugConfigurationWithSubstitutedVariables(); because this runs after the tasks instead of before, it might eliminate the need for building the task tree. I haven't done enough investigation to be sure though.