Allow registered vars to be populated across tasks #197
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The runner now differentiates between all variables and registered variables from command execution. Registered variables are a subset of all variables that will be used for subsequent tasks. This additional feature aids in more specific tracking and utilization of key variables in more complex scripting scenarios. This is a preparation step to implement cross-task registered vars #196
This update adds the function 'UpdateRegisteredVars' to update environment variables with values from a list of registered variables passed on by the caller. This ensures registered variables can be used across tasks are updated promptly.
Expanded on the README by adding a section which explains the usage of registered variables. This section contains details on how registered variables can be used across multiple tasks within the same playbook, with an included example for clarity.
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see #196
This PR changes the scope of registered variables, making them available to all subsequent tasks. The only thing I still doubt is whether those vars should overwrite locally set variables (set by command) and act as immutable (can be set once). For now, I made them immutable, but may reconsider it if needed.
cc: @koolay