Idea to generate makefile from R dataframe of file dependencies, also produce dependency diagram.

gistfile1.txt

library(dplyr)
library(DiagrammeR)

files <- list.files(recursive = TRUE)
file_df <- data_frame(files = files,
											type = tools::file_ext(files))
file_df <- filter(file_df, type != "")
file_df$shape <- ifelse(file_df$type %in% c("R", "Rmd"), "circle", "square")

dependencies <- data_frame(
	file = file_df$files,
	pre_req = c("NULL", "mtcars.csv", "mtcars.RData",
							"NULL", "NULL", "analysis/file1.R",
							"analysis/file2.R" , "NULL")
)

dependencies <- filter(dependencies, pre_req != "NULL")

nodes <-
	create_nodes(nodes = file_df$files,
							 shape = file_df$shape)

edges <-
	create_edges(from = dependencies$pre_req,
							 to = dependencies$file,
							 relationship = "leading to")


graph <-
	create_graph(nodes_df = nodes,
							 edges_df = edges,
							 graph_attrs = "layout = circo",
							 node_attrs = )

render_graph(graph)