[New Feature]: Code action to add configurable values to `Config.toml`

[LakshanWeerasinghe]

Description

$subject

This code action must perform the following functions:

• Add Missing Configurables: It checks for the presence of required configurables in the Config.toml file. If any configurables are missing, it adds them to the file.
• Create Config.toml if Absent: If the Config.toml file does not exist, this code action creates a new Config.toml file and adds the required configurables to it.

Describe your problem(s)

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Related area

-> Compilation

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[LakshanWeerasinghe]

There are two scenarios to consider:

Case 1: Config.toml is not present

In this scenario, we need to verify if there are more than one configurable variables present. If so, we can send a resolvable code action with a command to create the Config.toml from the VS Code plugin. The subsequent code action resolution phase will calculate the necessary text edits and apply them to the Config.toml.

Case 2: Config.toml is present

When Config.toml is present, we must parse the existing Config.toml to identify the configurable variables in the project. Then, we need to find the differences between the existing Config.toml and the current project configuration. Due to the complexity of this computation, having a code action for this case as a resolvable code action is not beneficial.

[LakshanWeerasinghe]

In order to retrieve the configurable variables in a project we can use the ConfigReader. But it won't give the default values for the configurable variables. So we need to address this issue.