pkgload2: An alternative to 'pkgload::load_all' with caching

In PredictiveEcology/SpaDES.project: Project Templates Using 'SpaDES'

An alternative to pkgload::load_all with caching

Description

pkgload::load_all does not automatically deal with dependency chains: the user must manually load the dependency chain in order with separate calls to pkgload::load_all. Also, it does not use caching. This function allows nested caching for a sequence of packages that depend on one another. For example, if a user has 3 packages that have dependency chain: A is a dependency of B which is a dependency of C. If a change happens in C, then pkgload::load_all will only be called on C. If a change happens in A, then pkgload::load_all will be called on A, then B, then C.

Usage

pkgload2(
  depsPaths = file.path("~/GitHub", c("reproducible", "SpaDES.core", "LandR")),
  envir = parent.frame()
)

Arguments

depsPaths	A character vector of paths to packages that need loading, or list of these. Each vector should be the load order sequence, based on the package dependencies, i.e., the first element in the vector should be a dependency of the second element in the vector etc. For packages that do not depend on each other, use separate list elements.
envir	An environment where an object called .prevDigs that will be placed and used as a cache comparison.

Value

This is called for its side effects, which are 2: pkgload::load_all on the packages that need it, and an object, .prevDigs that is assigned to envir.

PredictiveEcology/SpaDES.project documentation built on Dec. 23, 2024, 7:33 a.m.