Scans a specified R script for function calls, cross-references them against currently attached packages, and interactively helps the user resolve unused dependencies based on their current workflow.
Value
Invisibly returns a named list with components: status ("done",
"cancelled", "clean", or "error"), script, external_packages,
and unused_packages (character vectors).
Details
The function provides different resolution paths depending on the detected context:
Package Development: If a `DESCRIPTION` file is found, it flags unused packages that should be removed from the `Imports` field.
Data Analysis: If the user is working in an active session, it offers to detach idle packages and call `gc()` to reclaim RAM.
Raw Script Cleaning: It generates an optimized block of `library()` calls containing only the packages actually required by the script.
Warning
This function modifies files on disk or the global environment. Please ensure you have a backup or are using version control (e.g., Git) before execution.
Examples
if (interactive()) {
scan_dependencies()
}